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<title>[204852] trunk/Source</title>
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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/204852">204852</a></dd>
<dt>Author</dt> <dd>hyatt@apple.com</dd>
<dt>Date</dt> <dd>2016-08-23 12:37:37 -0700 (Tue, 23 Aug 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>Add pref for enabling new CSS parsing and move parser files into subdirectory.
https://bugs.webkit.org/show_bug.cgi?id=161095
Reviewed by Sam Weinig.
Source/WebCore:
* CMakeLists.txt:
* WebCore.xcodeproj/project.pbxproj:
* css/CSSParser.cpp: Removed.
* css/CSSParser.h: Removed.
* css/CSSParserMode.h: Removed.
* css/CSSParserValues.cpp: Removed.
* css/CSSParserValues.h: Removed.
* css/SVGCSSParser.cpp: Removed.
* css/parser: Added.
* css/parser/CSSParser.cpp: Copied from css/CSSParser.cpp.
* css/parser/CSSParser.h: Copied from css/CSSParser.h.
* css/parser/CSSParserMode.h: Copied from css/CSSParserMode.h.
* css/parser/CSSParserValues.cpp: Copied from css/CSSParserValues.cpp.
* css/parser/CSSParserValues.h: Copied from css/CSSParserValues.h.
* css/parser/SVGCSSParser.cpp: Copied from css/SVGCSSParser.cpp.
* page/Settings.in:
Source/WebKit2:
* Shared/WebPreferencesDefinitions.h:
* UIProcess/API/C/WKPreferences.cpp:
(WKPreferencesSetNewCSSParserEnabled):
(WKPreferencesGetNewCSSParserEnabled):
* UIProcess/API/C/WKPreferencesRefPrivate.h:
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::updatePreferences):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreCMakeListstxt">trunk/Source/WebCore/CMakeLists.txt</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreWebCorexcodeprojprojectpbxproj">trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj</a></li>
<li><a href="#trunkSourceWebCorepageSettingsin">trunk/Source/WebCore/page/Settings.in</a></li>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2SharedWebPreferencesDefinitionsh">trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICWKPreferencescpp">trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICWKPreferencesRefPrivateh">trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebPageWebPagecpp">trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li>trunk/Source/WebCore/css/parser/</li>
<li><a href="#trunkSourceWebCorecssparserCSSParsercpp">trunk/Source/WebCore/css/parser/CSSParser.cpp</a></li>
<li><a href="#trunkSourceWebCorecssparserCSSParserh">trunk/Source/WebCore/css/parser/CSSParser.h</a></li>
<li><a href="#trunkSourceWebCorecssparserCSSParserModeh">trunk/Source/WebCore/css/parser/CSSParserMode.h</a></li>
<li><a href="#trunkSourceWebCorecssparserCSSParserValuescpp">trunk/Source/WebCore/css/parser/CSSParserValues.cpp</a></li>
<li><a href="#trunkSourceWebCorecssparserCSSParserValuesh">trunk/Source/WebCore/css/parser/CSSParserValues.h</a></li>
<li><a href="#trunkSourceWebCorecssparserSVGCSSParsercpp">trunk/Source/WebCore/css/parser/SVGCSSParser.cpp</a></li>
</ul>
<h3>Removed Paths</h3>
<ul>
<li><a href="#trunkSourceWebCorecssCSSParsercpp">trunk/Source/WebCore/css/CSSParser.cpp</a></li>
<li><a href="#trunkSourceWebCorecssCSSParserh">trunk/Source/WebCore/css/CSSParser.h</a></li>
<li><a href="#trunkSourceWebCorecssCSSParserModeh">trunk/Source/WebCore/css/CSSParserMode.h</a></li>
<li><a href="#trunkSourceWebCorecssCSSParserValuescpp">trunk/Source/WebCore/css/CSSParserValues.cpp</a></li>
<li><a href="#trunkSourceWebCorecssCSSParserValuesh">trunk/Source/WebCore/css/CSSParserValues.h</a></li>
<li><a href="#trunkSourceWebCorecssSVGCSSParsercpp">trunk/Source/WebCore/css/SVGCSSParser.cpp</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreCMakeListstxt"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/CMakeLists.txt (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/CMakeLists.txt 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/CMakeLists.txt 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -44,6 +44,7 @@
</span><span class="cx"> "${WEBCORE_DIR}/crypto/keys"
</span><span class="cx"> "${WEBCORE_DIR}/crypto/parameters"
</span><span class="cx"> "${WEBCORE_DIR}/css"
</span><ins>+ "${WEBCORE_DIR}/css/parser"
</ins><span class="cx"> "${WEBCORE_DIR}/cssjit"
</span><span class="cx"> "${WEBCORE_DIR}/dom"
</span><span class="cx"> "${WEBCORE_DIR}/dom/default"
</span><span class="lines">@@ -1344,8 +1345,6 @@
</span><span class="cx"> css/CSSNamedImageValue.cpp
</span><span class="cx"> css/CSSOMUtils.cpp
</span><span class="cx"> css/CSSPageRule.cpp
</span><del>- css/CSSParser.cpp
- css/CSSParserValues.cpp
</del><span class="cx"> css/CSSPrimitiveValue.cpp
</span><span class="cx"> css/CSSProperty.cpp
</span><span class="cx"> css/CSSPropertySourceData.cpp
</span><span class="lines">@@ -1389,7 +1388,6 @@
</span><span class="cx"> css/RuleFeature.cpp
</span><span class="cx"> css/RuleSet.cpp
</span><span class="cx"> css/SVGCSSComputedStyleDeclaration.cpp
</span><del>- css/SVGCSSParser.cpp
</del><span class="cx"> css/SelectorChecker.cpp
</span><span class="cx"> css/SelectorFilter.cpp
</span><span class="cx"> css/SourceSizeList.cpp
</span><span class="lines">@@ -1411,6 +1409,10 @@
</span><span class="cx"> css/WebKitCSSTransformValue.cpp
</span><span class="cx"> css/WebKitCSSViewportRule.cpp
</span><span class="cx">
</span><ins>+ css/parser/CSSParser.cpp
+ css/parser/CSSParserValues.cpp
+ css/parser/SVGCSSParser.cpp
+
</ins><span class="cx"> cssjit/SelectorCompiler.cpp
</span><span class="cx">
</span><span class="cx"> dom/ActiveDOMCallbackMicrotask.cpp
</span></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/ChangeLog 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1,3 +1,27 @@
</span><ins>+2016-08-23 Dave Hyatt <hyatt@apple.com>
+
+ Add pref for enabling new CSS parsing and move parser files into subdirectory.
+ https://bugs.webkit.org/show_bug.cgi?id=161095
+
+ Reviewed by Sam Weinig.
+
+ * CMakeLists.txt:
+ * WebCore.xcodeproj/project.pbxproj:
+ * css/CSSParser.cpp: Removed.
+ * css/CSSParser.h: Removed.
+ * css/CSSParserMode.h: Removed.
+ * css/CSSParserValues.cpp: Removed.
+ * css/CSSParserValues.h: Removed.
+ * css/SVGCSSParser.cpp: Removed.
+ * css/parser: Added.
+ * css/parser/CSSParser.cpp: Copied from css/CSSParser.cpp.
+ * css/parser/CSSParser.h: Copied from css/CSSParser.h.
+ * css/parser/CSSParserMode.h: Copied from css/CSSParserMode.h.
+ * css/parser/CSSParserValues.cpp: Copied from css/CSSParserValues.cpp.
+ * css/parser/CSSParserValues.h: Copied from css/CSSParserValues.h.
+ * css/parser/SVGCSSParser.cpp: Copied from css/SVGCSSParser.cpp.
+ * page/Settings.in:
+
</ins><span class="cx"> 2016-08-23 Eric Carlson <eric.carlson@apple.com>
</span><span class="cx">
</span><span class="cx"> [MediaStream] Templatize MediaConstraint
</span></span></pre></div>
<a id="trunkSourceWebCoreWebCorexcodeprojprojectpbxproj"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -3321,6 +3321,12 @@
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+ 946D372F1D6CB2940077084F /* CSSParserMode.h in Headers */ = {isa = PBXBuildFile; fileRef = 946D372A1D6CB28B0077084F /* CSSParserMode.h */; settings = {ATTRIBUTES = (Private, ); }; };
+ 946D37301D6CB2940077084F /* CSSParserValues.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 946D372B1D6CB28B0077084F /* CSSParserValues.cpp */; };
+ 946D37311D6CB2940077084F /* CSSParserValues.h in Headers */ = {isa = PBXBuildFile; fileRef = 946D372C1D6CB28B0077084F /* CSSParserValues.h */; settings = {ATTRIBUTES = (Private, ); }; };
+ 946D37331D6CC42B0077084F /* SVGCSSParser.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 946D37321D6CC3720077084F /* SVGCSSParser.cpp */; };
</ins><span class="cx"> 96ABA42314BCB80E00D56204 /* GraphicsContext3DOpenGLCommon.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 96ABA42214BCB80E00D56204 /* GraphicsContext3DOpenGLCommon.cpp */; };
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</span><span class="lines">@@ -4502,7 +4508,6 @@
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</span><span class="lines">@@ -4918,8 +4923,6 @@
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- BC02A5400E099C5A004B6D2B /* CSSParserValues.cpp in Sources */ = {isa = PBXBuildFile; fileRef = BC02A53F0E099C5A004B6D2B /* CSSParserValues.cpp */; };
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</span><span class="lines">@@ -5117,8 +5120,6 @@
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</span><span class="lines">@@ -6311,13 +6312,13 @@
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</span><ins>+ 946D372D1D6CB2940077084F /* CSSParser.cpp in Sources */,
</ins><span class="cx"> 7AA3A69B194A64E7001CBD24 /* TileGrid.cpp in Sources */,
</span><span class="cx"> 498770F21242C535002226BA /* TilingData.cpp in Sources */,
</span><span class="cx"> F55B3DDB1251F12D003EF269 /* TimeInputType.cpp in Sources */,
</span></span></pre></div>
<a id="trunkSourceWebCorecssCSSParsercpp"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WebCore/css/CSSParser.cpp (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/CSSParser.cpp 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/css/CSSParser.cpp 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1,13857 +0,0 @@
</span><del>-/*
- * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
- * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
- * Copyright (C) 2004-2015 Apple Inc. All rights reserved.
- * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
- * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
- * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
- * Copyright (C) 2012, 2013 Adobe Systems Incorporated. All rights reserved.
- * Copyright (C) 2012 Intel Corporation. All rights reserved.
- * Copyright (C) 2014 Google Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-#include "CSSParser.h"
-
-#include "CSSAnimationTriggerScrollValue.h"
-#include "CSSAspectRatioValue.h"
-#include "CSSBasicShapes.h"
-#include "CSSBorderImage.h"
-#include "CSSBorderImageSliceValue.h"
-#include "CSSCanvasValue.h"
-#include "CSSContentDistributionValue.h"
-#include "CSSCrossfadeValue.h"
-#include "CSSCursorImageValue.h"
-#include "CSSCustomPropertyValue.h"
-#include "CSSFilterImageValue.h"
-#include "CSSFontFaceRule.h"
-#include "CSSFontFaceSrcValue.h"
-#include "CSSFontFeatureValue.h"
-#include "CSSFontValue.h"
-#include "CSSFunctionValue.h"
-#include "CSSGradientValue.h"
-#include "CSSImageSetValue.h"
-#include "CSSImageValue.h"
-#include "CSSInheritedValue.h"
-#include "CSSInitialValue.h"
-#include "CSSKeyframeRule.h"
-#include "CSSKeyframesRule.h"
-#include "CSSLineBoxContainValue.h"
-#include "CSSMediaRule.h"
-#include "CSSNamedImageValue.h"
-#include "CSSPageRule.h"
-#include "CSSPrimitiveValue.h"
-#include "CSSPrimitiveValueMappings.h"
-#include "CSSPropertySourceData.h"
-#include "CSSReflectValue.h"
-#include "CSSRevertValue.h"
-#include "CSSSelector.h"
-#include "CSSShadowValue.h"
-#include "CSSStyleSheet.h"
-#include "CSSTimingFunctionValue.h"
-#include "CSSUnicodeRangeValue.h"
-#include "CSSUnsetValue.h"
-#include "CSSValueKeywords.h"
-#include "CSSValueList.h"
-#include "CSSValuePool.h"
-#include "CSSVariableDependentValue.h"
-#include "Counter.h"
-#include "Document.h"
-#include "FloatConversion.h"
-#include "GridArea.h"
-#include "HTMLOptGroupElement.h"
-#include "HTMLParserIdioms.h"
-#include "HashTools.h"
-#include "MediaList.h"
-#include "MediaQueryExp.h"
-#include "Page.h"
-#include "PageConsoleClient.h"
-#include "Pair.h"
-#include "Rect.h"
-#include "RenderTheme.h"
-#include "RuntimeEnabledFeatures.h"
-#include "SVGParserUtilities.h"
-#include "SVGPathByteStream.h"
-#include "SVGPathUtilities.h"
-#include "SelectorChecker.h"
-#include "SelectorCheckerTestFunctions.h"
-#include "Settings.h"
-#include "StyleProperties.h"
-#include "StylePropertyShorthand.h"
-#include "StylePropertyShorthandFunctions.h"
-#include "StyleRule.h"
-#include "StyleRuleImport.h"
-#include "StyleSheetContents.h"
-#include "TextEncoding.h"
-#include "WebKitCSSFilterValue.h"
-#include "WebKitCSSRegionRule.h"
-#include "WebKitCSSTransformValue.h"
-#include <bitset>
-#include <limits.h>
-#include <wtf/HexNumber.h>
-#include <wtf/NeverDestroyed.h>
-#include <wtf/StdLibExtras.h>
-#include <wtf/dtoa.h>
-#include <wtf/text/StringBuffer.h>
-#include <wtf/text/StringBuilder.h>
-#include <wtf/text/StringImpl.h>
-
-#if ENABLE(CSS_GRID_LAYOUT)
-#include "CSSGridAutoRepeatValue.h"
-#include "CSSGridLineNamesValue.h"
-#include "CSSGridTemplateAreasValue.h"
-#endif
-
-#if ENABLE(CSS_SCROLL_SNAP)
-#include "LengthRepeat.h"
-#endif
-
-#if ENABLE(DASHBOARD_SUPPORT)
-#include "DashboardRegion.h"
-#endif
-
-#define YYDEBUG 0
-
-#if YYDEBUG > 0
-extern int cssyydebug;
-#endif
-
-extern int cssyyparse(WebCore::CSSParser*);
-
-using namespace WTF;
-
-namespace {
-
-enum PropertyType {
- PropertyExplicit,
- PropertyImplicit
-};
-
-class ImplicitScope {
- WTF_MAKE_NONCOPYABLE(ImplicitScope);
-public:
- ImplicitScope(WebCore::CSSParser& parser, PropertyType propertyType)
- : m_parser(parser)
- {
- m_parser.m_implicitShorthand = propertyType == PropertyImplicit;
- }
-
- ~ImplicitScope()
- {
- m_parser.m_implicitShorthand = false;
- }
-
-private:
- WebCore::CSSParser& m_parser;
-};
-
-} // namespace
-
-namespace WebCore {
-
-const unsigned CSSParser::invalidParsedPropertiesCount = std::numeric_limits<unsigned>::max();
-static const double MAX_SCALE = 1000000;
-
-template<unsigned length> bool equalLettersIgnoringASCIICase(const CSSParserValue& value, const char (&lowercaseLetters)[length])
-{
- ASSERT(value.unit == CSSPrimitiveValue::CSS_IDENT || value.unit == CSSPrimitiveValue::CSS_STRING);
- return equalLettersIgnoringASCIICase(value.string, lowercaseLetters);
-}
-
-static bool hasPrefix(const char* string, unsigned length, const char* prefix)
-{
- for (unsigned i = 0; i < length; ++i) {
- if (!prefix[i])
- return true;
- if (string[i] != prefix[i])
- return false;
- }
- return false;
-}
-
-template<typename... Args>
-static Ref<CSSPrimitiveValue> createPrimitiveValuePair(Args&&... args)
-{
- return CSSValuePool::singleton().createValue(Pair::create(std::forward<Args>(args)...));
-}
-
-class AnimationParseContext {
-public:
- AnimationParseContext() = default;
-
- void commitFirstAnimation()
- {
- m_firstAnimationCommitted = true;
- }
-
- bool hasCommittedFirstAnimation() const
- {
- return m_firstAnimationCommitted;
- }
-
- void commitAnimationPropertyKeyword()
- {
- m_animationPropertyKeywordAllowed = false;
- }
-
- bool animationPropertyKeywordAllowed() const
- {
- return m_animationPropertyKeywordAllowed;
- }
-
- bool hasSeenAnimationPropertyKeyword() const
- {
- return m_hasSeenAnimationPropertyKeyword;
- }
-
- void sawAnimationPropertyKeyword()
- {
- m_hasSeenAnimationPropertyKeyword = true;
- }
-
-private:
- bool m_animationPropertyKeywordAllowed { true };
- bool m_firstAnimationCommitted { false };
- bool m_hasSeenAnimationPropertyKeyword { false };
-};
-
-const CSSParserContext& strictCSSParserContext()
-{
- static NeverDestroyed<CSSParserContext> strictContext(CSSStrictMode);
- return strictContext;
-}
-
-CSSParserContext::CSSParserContext(CSSParserMode mode, const URL& baseURL)
- : baseURL(baseURL)
- , mode(mode)
-#if ENABLE(CSS_GRID_LAYOUT)
- , cssGridLayoutEnabled(RuntimeEnabledFeatures::sharedFeatures().isCSSGridLayoutEnabled())
-#endif
-{
-#if PLATFORM(IOS)
- // FIXME: Force the site specific quirk below to work on iOS. Investigating other site specific quirks
- // to see if we can enable the preference all together is to be handled by:
- // <rdar://problem/8493309> Investigate Enabling Site Specific Quirks in MobileSafari and UIWebView
- needsSiteSpecificQuirks = true;
-#endif
-}
-
-CSSParserContext::CSSParserContext(Document& document, const URL& baseURL, const String& charset)
- : baseURL(baseURL.isNull() ? document.baseURL() : baseURL)
- , charset(charset)
- , mode(document.inQuirksMode() ? CSSQuirksMode : CSSStrictMode)
- , isHTMLDocument(document.isHTMLDocument())
-#if ENABLE(CSS_GRID_LAYOUT)
- , cssGridLayoutEnabled(document.isCSSGridLayoutEnabled())
-#endif
-{
- if (Settings* settings = document.settings()) {
- needsSiteSpecificQuirks = settings->needsSiteSpecificQuirks();
- enforcesCSSMIMETypeInNoQuirksMode = settings->enforceCSSMIMETypeInNoQuirksMode();
- useLegacyBackgroundSizeShorthandBehavior = settings->useLegacyBackgroundSizeShorthandBehavior();
-#if ENABLE(IOS_TEXT_AUTOSIZING)
- textAutosizingEnabled = settings->textAutosizingEnabled();
-#endif
- springTimingFunctionEnabled = settings->springTimingFunctionEnabled();
- }
-
-#if PLATFORM(IOS)
- // FIXME: Force the site specific quirk below to work on iOS. Investigating other site specific quirks
- // to see if we can enable the preference all together is to be handled by:
- // <rdar://problem/8493309> Investigate Enabling Site Specific Quirks in MobileSafari and UIWebView
- needsSiteSpecificQuirks = true;
-#endif
-}
-
-bool operator==(const CSSParserContext& a, const CSSParserContext& b)
-{
- return a.baseURL == b.baseURL
- && a.charset == b.charset
- && a.mode == b.mode
- && a.isHTMLDocument == b.isHTMLDocument
-#if ENABLE(CSS_GRID_LAYOUT)
- && a.cssGridLayoutEnabled == b.cssGridLayoutEnabled
-#endif
- && a.needsSiteSpecificQuirks == b.needsSiteSpecificQuirks
- && a.enforcesCSSMIMETypeInNoQuirksMode == b.enforcesCSSMIMETypeInNoQuirksMode
- && a.useLegacyBackgroundSizeShorthandBehavior == b.useLegacyBackgroundSizeShorthandBehavior
- && a.springTimingFunctionEnabled == b.springTimingFunctionEnabled;
-}
-
-CSSParser::CSSParser(const CSSParserContext& context)
- : m_context(context)
-{
-#if YYDEBUG > 0
- cssyydebug = 1;
-#endif
-}
-
-CSSParser::~CSSParser()
-{
-}
-
-template<typename CharacterType> ALWAYS_INLINE static void convertToASCIILowercaseInPlace(CharacterType* characters, unsigned length)
-{
- for (unsigned i = 0; i < length; ++i)
- characters[i] = toASCIILower(characters[i]);
-}
-
-void CSSParserString::convertToASCIILowercaseInPlace()
-{
- if (is8Bit())
- WebCore::convertToASCIILowercaseInPlace(characters8(), length());
- else
- WebCore::convertToASCIILowercaseInPlace(characters16(), length());
-}
-
-void CSSParser::setupParser(const char* prefix, unsigned prefixLength, StringView string, const char* suffix, unsigned suffixLength)
-{
- m_parsedTextPrefixLength = prefixLength;
- unsigned stringLength = string.length();
- unsigned length = stringLength + m_parsedTextPrefixLength + suffixLength + 1;
- m_length = length;
-
- if (!stringLength || string.is8Bit()) {
- m_dataStart8 = std::make_unique<LChar[]>(length);
- for (unsigned i = 0; i < m_parsedTextPrefixLength; ++i)
- m_dataStart8[i] = prefix[i];
-
- if (stringLength)
- memcpy(m_dataStart8.get() + m_parsedTextPrefixLength, string.characters8(), stringLength * sizeof(LChar));
-
- unsigned start = m_parsedTextPrefixLength + stringLength;
- unsigned end = start + suffixLength;
- for (unsigned i = start; i < end; i++)
- m_dataStart8[i] = suffix[i - start];
-
- m_dataStart8[length - 1] = '\0';
-
- m_is8BitSource = true;
- m_currentCharacter8 = m_dataStart8.get();
- m_currentCharacter16 = nullptr;
- setTokenStart<LChar>(m_currentCharacter8);
- m_lexFunc = &CSSParser::realLex<LChar>;
- return;
- }
-
- m_dataStart16 = std::make_unique<UChar[]>(length);
- for (unsigned i = 0; i < m_parsedTextPrefixLength; ++i)
- m_dataStart16[i] = prefix[i];
-
- ASSERT(stringLength);
- memcpy(m_dataStart16.get() + m_parsedTextPrefixLength, string.characters16(), stringLength * sizeof(UChar));
-
- unsigned start = m_parsedTextPrefixLength + stringLength;
- unsigned end = start + suffixLength;
- for (unsigned i = start; i < end; i++)
- m_dataStart16[i] = suffix[i - start];
-
- m_dataStart16[length - 1] = '\0';
-
- m_is8BitSource = false;
- m_currentCharacter8 = nullptr;
- m_currentCharacter16 = m_dataStart16.get();
- setTokenStart<UChar>(m_currentCharacter16);
- m_lexFunc = &CSSParser::realLex<UChar>;
-}
-
-void CSSParser::parseSheet(StyleSheetContents* sheet, const String& string, const TextPosition& textPosition, RuleSourceDataList* ruleSourceDataResult, bool logErrors)
-{
- setStyleSheet(sheet);
- m_defaultNamespace = starAtom; // Reset the default namespace.
- if (ruleSourceDataResult)
- m_currentRuleDataStack = std::make_unique<RuleSourceDataList>();
- m_ruleSourceDataResult = ruleSourceDataResult;
-
- m_logErrors = logErrors && sheet->singleOwnerDocument() && !sheet->baseURL().isEmpty() && sheet->singleOwnerDocument()->page();
- m_ignoreErrorsInDeclaration = false;
- m_sheetStartLineNumber = textPosition.m_line.zeroBasedInt();
- m_sheetStartColumnNumber = textPosition.m_column.zeroBasedInt();
- m_lineNumber = m_sheetStartLineNumber;
- m_columnOffsetForLine = 0;
- setupParser("", string, "");
- cssyyparse(this);
- sheet->shrinkToFit();
- m_currentRuleDataStack.reset();
- m_ruleSourceDataResult = nullptr;
- m_rule = nullptr;
- m_ignoreErrorsInDeclaration = false;
- m_logErrors = false;
-}
-
-RefPtr<StyleRuleBase> CSSParser::parseRule(StyleSheetContents* sheet, const String& string)
-{
- setStyleSheet(sheet);
- m_allowNamespaceDeclarations = false;
- setupParser("@-webkit-rule{", string, "} ");
- cssyyparse(this);
- return m_rule;
-}
-
-RefPtr<StyleKeyframe> CSSParser::parseKeyframeRule(StyleSheetContents* sheet, const String& string)
-{
- setStyleSheet(sheet);
- setupParser("@-webkit-keyframe-rule{ ", string, "} ");
- cssyyparse(this);
- return m_keyframe;
-}
-
-bool CSSParser::parseSupportsCondition(const String& string)
-{
- m_supportsCondition = false;
- // can't use { because tokenizer state switches from supports to initial state when it sees { token.
- // instead insert one " " (which is WHITESPACE in CSSGrammar.y)
- setupParser("@-webkit-supports-condition ", string, "} ");
- cssyyparse(this);
- return m_supportsCondition;
-}
-
-static inline bool isColorPropertyID(CSSPropertyID propertyId)
-{
- switch (propertyId) {
- case CSSPropertyColor:
- case CSSPropertyBackgroundColor:
- case CSSPropertyBorderBottomColor:
- case CSSPropertyBorderLeftColor:
- case CSSPropertyBorderRightColor:
- case CSSPropertyBorderTopColor:
- case CSSPropertyOutlineColor:
- case CSSPropertyTextLineThroughColor:
- case CSSPropertyTextOverlineColor:
- case CSSPropertyTextUnderlineColor:
- case CSSPropertyWebkitBorderAfterColor:
- case CSSPropertyWebkitBorderBeforeColor:
- case CSSPropertyWebkitBorderEndColor:
- case CSSPropertyWebkitBorderStartColor:
- case CSSPropertyColumnRuleColor:
- case CSSPropertyWebkitTextDecorationColor:
- case CSSPropertyWebkitTextEmphasisColor:
- case CSSPropertyWebkitTextFillColor:
- case CSSPropertyWebkitTextStrokeColor:
- return true;
- default:
- return false;
- }
-}
-
-bool CSSParser::isValidSystemColorValue(CSSValueID valueID)
-{
- return valueID >= CSSValueAqua && valueID <= CSSValueAppleSystemYellow;
-}
-
-static bool validPrimitiveValueColor(CSSValueID valueID, bool strict = false)
-{
- return (valueID == CSSValueWebkitText || valueID == CSSValueCurrentcolor || valueID == CSSValueMenu
- || CSSParser::isValidSystemColorValue(valueID) || valueID == CSSValueAlpha
- || (valueID >= CSSValueWebkitFocusRingColor && valueID < CSSValueWebkitText && !strict));
-}
-
-static CSSParser::ParseResult parseColorValue(MutableStyleProperties& declaration, CSSPropertyID propertyId, const String& string, bool important, CSSParserMode cssParserMode)
-{
- ASSERT(!string.isEmpty());
- bool strict = isStrictParserMode(cssParserMode);
- if (!isColorPropertyID(propertyId))
- return CSSParser::ParseResult::Error;
-
- CSSParserString cssString;
- cssString.init(string);
- CSSValueID valueID = cssValueKeywordID(cssString);
- if (validPrimitiveValueColor(valueID, strict)) {
- auto value = CSSValuePool::singleton().createIdentifierValue(valueID);
- return declaration.addParsedProperty(CSSProperty(propertyId, WTFMove(value), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
- }
- RGBA32 color;
- if (!CSSParser::fastParseColor(color, string, strict && string[0] != '#'))
- return CSSParser::ParseResult::Error;
-
- auto value = CSSValuePool::singleton().createColorValue(color);
- return declaration.addParsedProperty(CSSProperty(propertyId, WTFMove(value), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
-}
-
-static inline bool isSimpleLengthPropertyID(CSSPropertyID propertyId, bool& acceptsNegativeNumbers)
-{
- switch (propertyId) {
- case CSSPropertyFontSize:
- case CSSPropertyHeight:
- case CSSPropertyWidth:
- case CSSPropertyMinHeight:
- case CSSPropertyMinWidth:
- case CSSPropertyPaddingBottom:
- case CSSPropertyPaddingLeft:
- case CSSPropertyPaddingRight:
- case CSSPropertyPaddingTop:
- case CSSPropertyWebkitLogicalWidth:
- case CSSPropertyWebkitLogicalHeight:
- case CSSPropertyWebkitMinLogicalWidth:
- case CSSPropertyWebkitMinLogicalHeight:
- case CSSPropertyWebkitPaddingAfter:
- case CSSPropertyWebkitPaddingBefore:
- case CSSPropertyWebkitPaddingEnd:
- case CSSPropertyWebkitPaddingStart:
-#if ENABLE(CSS_GRID_LAYOUT)
- case CSSPropertyGridColumnGap:
- case CSSPropertyGridRowGap:
-#endif
-#if ENABLE(CSS_SHAPES)
- case CSSPropertyWebkitShapeMargin:
-#endif
- acceptsNegativeNumbers = false;
- return true;
- case CSSPropertyBottom:
- case CSSPropertyCx:
- case CSSPropertyCy:
- case CSSPropertyLeft:
- case CSSPropertyMarginBottom:
- case CSSPropertyMarginLeft:
- case CSSPropertyMarginRight:
- case CSSPropertyMarginTop:
- case CSSPropertyR:
- case CSSPropertyRx:
- case CSSPropertyRy:
- case CSSPropertyRight:
- case CSSPropertyTop:
- case CSSPropertyWebkitMarginAfter:
- case CSSPropertyWebkitMarginBefore:
- case CSSPropertyWebkitMarginEnd:
- case CSSPropertyWebkitMarginStart:
- case CSSPropertyX:
- case CSSPropertyY:
- acceptsNegativeNumbers = true;
- return true;
- default:
- return false;
- }
-}
-
-template <typename CharacterType>
-static inline bool parseSimpleLength(const CharacterType* characters, unsigned& length, CSSPrimitiveValue::UnitTypes& unit, double& number)
-{
- if (length > 2 && (characters[length - 2] | 0x20) == 'p' && (characters[length - 1] | 0x20) == 'x') {
- length -= 2;
- unit = CSSPrimitiveValue::CSS_PX;
- } else if (length > 1 && characters[length - 1] == '%') {
- length -= 1;
- unit = CSSPrimitiveValue::CSS_PERCENTAGE;
- }
-
- // We rely on charactersToDouble for validation as well. The function
- // will set "ok" to "false" if the entire passed-in character range does
- // not represent a double.
- bool ok;
- number = charactersToDouble(characters, length, &ok);
- return ok;
-}
-
-static CSSParser::ParseResult parseSimpleLengthValue(MutableStyleProperties& declaration, CSSPropertyID propertyId, const String& string, bool important, CSSParserMode cssParserMode)
-{
- ASSERT(!string.isEmpty());
- bool acceptsNegativeNumbers;
- if (!isSimpleLengthPropertyID(propertyId, acceptsNegativeNumbers))
- return CSSParser::ParseResult::Error;
-
- unsigned length = string.length();
- double number;
- CSSPrimitiveValue::UnitTypes unit = CSSPrimitiveValue::CSS_NUMBER;
-
- if (string.is8Bit()) {
- if (!parseSimpleLength(string.characters8(), length, unit, number))
- return CSSParser::ParseResult::Error;
- } else {
- if (!parseSimpleLength(string.characters16(), length, unit, number))
- return CSSParser::ParseResult::Error;
- }
-
- if (unit == CSSPrimitiveValue::CSS_NUMBER) {
- if (number && isStrictParserMode(cssParserMode))
- return CSSParser::ParseResult::Error;
- unit = CSSPrimitiveValue::CSS_PX;
- }
- if (number < 0 && !acceptsNegativeNumbers)
- return CSSParser::ParseResult::Error;
- if (std::isinf(number))
- return CSSParser::ParseResult::Error;
-
- auto value = CSSValuePool::singleton().createValue(number, unit);
- return declaration.addParsedProperty(CSSProperty(propertyId, WTFMove(value), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
-}
-
-static inline bool isValidKeywordPropertyAndValue(CSSPropertyID propertyId, int valueID, const CSSParserContext& parserContext, StyleSheetContents* styleSheetContents)
-{
- if (!valueID)
- return false;
-
- switch (propertyId) {
- case CSSPropertyBorderCollapse: // collapse | separate | inherit
- if (valueID == CSSValueCollapse || valueID == CSSValueSeparate)
- return true;
- break;
- case CSSPropertyBorderTopStyle: // <border-style> | inherit
- case CSSPropertyBorderRightStyle: // Defined as: none | hidden | dotted | dashed |
- case CSSPropertyBorderBottomStyle: // solid | double | groove | ridge | inset | outset
- case CSSPropertyBorderLeftStyle:
- case CSSPropertyWebkitBorderAfterStyle:
- case CSSPropertyWebkitBorderBeforeStyle:
- case CSSPropertyWebkitBorderEndStyle:
- case CSSPropertyWebkitBorderStartStyle:
- case CSSPropertyColumnRuleStyle:
- if (valueID >= CSSValueNone && valueID <= CSSValueDouble)
- return true;
- break;
- case CSSPropertyBoxSizing:
- if (valueID == CSSValueBorderBox || valueID == CSSValueContentBox)
- return true;
- break;
- case CSSPropertyCaptionSide: // top | bottom | left | right | inherit
- if (valueID == CSSValueLeft || valueID == CSSValueRight || valueID == CSSValueTop || valueID == CSSValueBottom)
- return true;
- break;
- case CSSPropertyClear: // none | left | right | both | inherit
- if (valueID == CSSValueNone || valueID == CSSValueLeft || valueID == CSSValueRight || valueID == CSSValueBoth)
- return true;
- break;
- case CSSPropertyDirection: // ltr | rtl | inherit
- if (valueID == CSSValueLtr || valueID == CSSValueRtl)
- return true;
- break;
- case CSSPropertyDisplay:
- // inline | block | list-item | inline-block | table |
- // inline-table | table-row-group | table-header-group | table-footer-group | table-row |
- // table-column-group | table-column | table-cell | table-caption | -webkit-box | -webkit-inline-box | none | inherit
- // flex | -webkit-flex | inline-flex | -webkit-inline-flex | grid | inline-grid | contents
- if ((valueID >= CSSValueInline && valueID <= CSSValueContents) || valueID == CSSValueNone)
- return true;
-#if ENABLE(CSS_GRID_LAYOUT)
- if (parserContext.cssGridLayoutEnabled && (valueID == CSSValueGrid || valueID == CSSValueInlineGrid))
- return true;
-#endif
- break;
-
- case CSSPropertyEmptyCells: // show | hide | inherit
- if (valueID == CSSValueShow || valueID == CSSValueHide)
- return true;
- break;
- case CSSPropertyFloat: // left | right | none | center (for buggy CSS, maps to none)
- if (valueID == CSSValueLeft || valueID == CSSValueRight || valueID == CSSValueNone || valueID == CSSValueCenter)
- return true;
- break;
- case CSSPropertyFontStyle: // normal | italic | oblique | inherit
- if (valueID == CSSValueNormal || valueID == CSSValueItalic || valueID == CSSValueOblique)
- return true;
- break;
- case CSSPropertyImageRendering: // auto | optimizeSpeed | optimizeQuality | -webkit-crisp-edges | -webkit-optimize-contrast | crisp-edges | pixelated
- // optimizeSpeed and optimizeQuality are deprecated; a user agent must accept them as valid values but must treat them as having the same behavior as pixelated and auto respectively.
- if (valueID == CSSValueAuto || valueID == CSSValueOptimizespeed || valueID == CSSValueOptimizequality
- || valueID == CSSValueWebkitCrispEdges || valueID == CSSValueWebkitOptimizeContrast || valueID == CSSValueCrispEdges || valueID == CSSValuePixelated)
- return true;
- break;
- case CSSPropertyListStylePosition: // inside | outside | inherit
- if (valueID == CSSValueInside || valueID == CSSValueOutside)
- return true;
- break;
- case CSSPropertyListStyleType:
- // See section CSS_PROP_LIST_STYLE_TYPE of file CSSValueKeywords.in
- // for the list of supported list-style-types.
- if ((valueID >= CSSValueDisc && valueID <= CSSValueKatakanaIroha) || valueID == CSSValueNone)
- return true;
- break;
- case CSSPropertyObjectFit:
- if (valueID == CSSValueFill || valueID == CSSValueContain || valueID == CSSValueCover || valueID == CSSValueNone || valueID == CSSValueScaleDown)
- return true;
- break;
- case CSSPropertyOutlineStyle: // (<border-style> except hidden) | auto | inherit
- if (valueID == CSSValueAuto || valueID == CSSValueNone || (valueID >= CSSValueInset && valueID <= CSSValueDouble))
- return true;
- break;
- case CSSPropertyOverflowWrap: // normal | break-word
- case CSSPropertyWordWrap:
- if (valueID == CSSValueNormal || valueID == CSSValueBreakWord)
- return true;
- break;
-#if ENABLE(TOUCH_EVENTS)
- case CSSPropertyTouchAction: // auto | manipulation
- if (valueID == CSSValueAuto || valueID == CSSValueManipulation)
- return true;
- break;
-#endif
-#if ENABLE(CSS_SCROLL_SNAP)
- case CSSPropertyWebkitScrollSnapType: // none | mandatory | proximity
- if (valueID == CSSValueNone || valueID == CSSValueMandatory || valueID == CSSValueProximity)
- return true;
- break;
-#endif
- case CSSPropertyOverflowX: // visible | hidden | scroll | auto | overlay | inherit
- if (valueID == CSSValueVisible || valueID == CSSValueHidden || valueID == CSSValueScroll || valueID == CSSValueAuto || valueID == CSSValueOverlay)
- return true;
- break;
- case CSSPropertyOverflowY: // visible | hidden | scroll | auto | overlay | inherit | -webkit-paged-x | -webkit-paged-y
- if (valueID == CSSValueVisible || valueID == CSSValueHidden || valueID == CSSValueScroll || valueID == CSSValueAuto || valueID == CSSValueOverlay || valueID == CSSValueWebkitPagedX || valueID == CSSValueWebkitPagedY)
- return true;
- break;
- case CSSPropertyPageBreakAfter: // auto | always | avoid | left | right | inherit
- case CSSPropertyPageBreakBefore:
- case CSSPropertyWebkitColumnBreakAfter:
- case CSSPropertyWebkitColumnBreakBefore:
- if (valueID == CSSValueAuto || valueID == CSSValueAlways || valueID == CSSValueAvoid || valueID == CSSValueLeft || valueID == CSSValueRight)
- return true;
- break;
- case CSSPropertyPageBreakInside: // avoid | auto | inherit
- case CSSPropertyWebkitColumnBreakInside:
- if (valueID == CSSValueAuto || valueID == CSSValueAvoid)
- return true;
- break;
- case CSSPropertyPointerEvents:
- // none | visiblePainted | visibleFill | visibleStroke | visible |
- // painted | fill | stroke | auto | all | inherit
- if (valueID == CSSValueVisible || valueID == CSSValueNone || valueID == CSSValueAll || valueID == CSSValueAuto || (valueID >= CSSValueVisiblepainted && valueID <= CSSValueStroke))
- return true;
- break;
- case CSSPropertyPosition: // static | relative | absolute | fixed | sticky | inherit
- if (valueID == CSSValueStatic || valueID == CSSValueRelative || valueID == CSSValueAbsolute || valueID == CSSValueFixed || valueID == CSSValueWebkitSticky)
- return true;
- break;
- case CSSPropertyResize: // none | both | horizontal | vertical | auto
- if (valueID == CSSValueNone || valueID == CSSValueBoth || valueID == CSSValueHorizontal || valueID == CSSValueVertical || valueID == CSSValueAuto)
- return true;
- break;
- case CSSPropertySpeak: // none | normal | spell-out | digits | literal-punctuation | no-punctuation | inherit
- if (valueID == CSSValueNone || valueID == CSSValueNormal || valueID == CSSValueSpellOut || valueID == CSSValueDigits || valueID == CSSValueLiteralPunctuation || valueID == CSSValueNoPunctuation)
- return true;
- break;
- case CSSPropertyTableLayout: // auto | fixed | inherit
- if (valueID == CSSValueAuto || valueID == CSSValueFixed)
- return true;
- break;
- case CSSPropertyTextLineThroughMode:
- case CSSPropertyTextOverlineMode:
- case CSSPropertyTextUnderlineMode:
- if (valueID == CSSValueContinuous || valueID == CSSValueSkipWhiteSpace)
- return true;
- break;
- case CSSPropertyTextLineThroughStyle:
- case CSSPropertyTextOverlineStyle:
- case CSSPropertyTextUnderlineStyle:
- if (valueID == CSSValueNone || valueID == CSSValueSolid || valueID == CSSValueDouble || valueID == CSSValueDashed || valueID == CSSValueDotDash || valueID == CSSValueDotDotDash || valueID == CSSValueWave)
- return true;
- break;
- case CSSPropertyTextOverflow: // clip | ellipsis
- if (valueID == CSSValueClip || valueID == CSSValueEllipsis)
- return true;
- break;
- case CSSPropertyTextRendering: // auto | optimizeSpeed | optimizeLegibility | geometricPrecision
- if (valueID == CSSValueAuto || valueID == CSSValueOptimizespeed || valueID == CSSValueOptimizelegibility || valueID == CSSValueGeometricprecision)
- return true;
- break;
- case CSSPropertyTextTransform: // capitalize | uppercase | lowercase | none | inherit
- if ((valueID >= CSSValueCapitalize && valueID <= CSSValueLowercase) || valueID == CSSValueNone)
- return true;
- break;
- case CSSPropertyVisibility: // visible | hidden | collapse | inherit
- if (valueID == CSSValueVisible || valueID == CSSValueHidden || valueID == CSSValueCollapse)
- return true;
- break;
- case CSSPropertyWebkitAppearance:
- if ((valueID >= CSSValueCheckbox && valueID <= CSSValueCapsLockIndicator) || valueID == CSSValueNone)
- return true;
- break;
- case CSSPropertyWebkitBackfaceVisibility:
- if (valueID == CSSValueVisible || valueID == CSSValueHidden)
- return true;
- break;
-#if ENABLE(CSS_COMPOSITING)
- case CSSPropertyMixBlendMode:
- if (valueID == CSSValueNormal || valueID == CSSValueMultiply || valueID == CSSValueScreen
- || valueID == CSSValueOverlay || valueID == CSSValueDarken || valueID == CSSValueLighten || valueID == CSSValueColorDodge
- || valueID == CSSValueColorBurn || valueID == CSSValueHardLight || valueID == CSSValueSoftLight || valueID == CSSValueDifference
- || valueID == CSSValueExclusion || valueID == CSSValuePlusDarker || valueID == CSSValuePlusLighter)
- return true;
- break;
- case CSSPropertyIsolation:
- if (valueID == CSSValueAuto || valueID == CSSValueIsolate)
- return true;
- break;
-#endif
- case CSSPropertyWebkitBorderFit:
- if (valueID == CSSValueBorder || valueID == CSSValueLines)
- return true;
- break;
- case CSSPropertyWebkitBoxAlign:
- if (valueID == CSSValueStretch || valueID == CSSValueStart || valueID == CSSValueEnd || valueID == CSSValueCenter || valueID == CSSValueBaseline)
- return true;
- break;
-#if ENABLE(CSS_BOX_DECORATION_BREAK)
- case CSSPropertyWebkitBoxDecorationBreak:
- if (valueID == CSSValueClone || valueID == CSSValueSlice)
- return true;
- break;
-#endif
- case CSSPropertyWebkitBoxDirection:
- if (valueID == CSSValueNormal || valueID == CSSValueReverse)
- return true;
- break;
- case CSSPropertyWebkitBoxLines:
- if (valueID == CSSValueSingle || valueID == CSSValueMultiple)
- return true;
- break;
- case CSSPropertyWebkitBoxOrient:
- if (valueID == CSSValueHorizontal || valueID == CSSValueVertical || valueID == CSSValueInlineAxis || valueID == CSSValueBlockAxis)
- return true;
- break;
- case CSSPropertyWebkitBoxPack:
- if (valueID == CSSValueStart || valueID == CSSValueEnd || valueID == CSSValueCenter || valueID == CSSValueJustify)
- return true;
- break;
- case CSSPropertyColumnFill:
- if (valueID == CSSValueAuto || valueID == CSSValueBalance)
- return true;
- break;
- case CSSPropertyFlexDirection:
- if (valueID == CSSValueRow || valueID == CSSValueRowReverse || valueID == CSSValueColumn || valueID == CSSValueColumnReverse)
- return true;
- break;
- case CSSPropertyFlexWrap:
- if (valueID == CSSValueNowrap || valueID == CSSValueWrap || valueID == CSSValueWrapReverse)
- return true;
- break;
- case CSSPropertyWebkitFontKerning:
- if (valueID == CSSValueAuto || valueID == CSSValueNormal || valueID == CSSValueNone)
- return true;
- break;
- case CSSPropertyWebkitFontSmoothing:
- if (valueID == CSSValueAuto || valueID == CSSValueNone || valueID == CSSValueAntialiased || valueID == CSSValueSubpixelAntialiased)
- return true;
- break;
- case CSSPropertyWebkitHyphens:
- if (valueID == CSSValueNone || valueID == CSSValueManual || valueID == CSSValueAuto)
- return true;
- break;
- case CSSPropertyWebkitLineAlign:
- if (valueID == CSSValueNone || valueID == CSSValueEdges)
- return true;
- break;
- case CSSPropertyWebkitLineBreak: // auto | loose | normal | strict | after-white-space
- if (valueID == CSSValueAuto || valueID == CSSValueLoose || valueID == CSSValueNormal || valueID == CSSValueStrict || valueID == CSSValueAfterWhiteSpace)
- return true;
- break;
- case CSSPropertyWebkitLineSnap:
- if (valueID == CSSValueNone || valueID == CSSValueBaseline || valueID == CSSValueContain)
- return true;
- break;
- case CSSPropertyWebkitMarginAfterCollapse:
- case CSSPropertyWebkitMarginBeforeCollapse:
- case CSSPropertyWebkitMarginBottomCollapse:
- case CSSPropertyWebkitMarginTopCollapse:
- if (valueID == CSSValueCollapse || valueID == CSSValueSeparate || valueID == CSSValueDiscard)
- return true;
- break;
- case CSSPropertyWebkitMarqueeDirection:
- if (valueID == CSSValueForwards || valueID == CSSValueBackwards || valueID == CSSValueAhead || valueID == CSSValueReverse || valueID == CSSValueLeft || valueID == CSSValueRight || valueID == CSSValueDown
- || valueID == CSSValueUp || valueID == CSSValueAuto)
- return true;
- break;
- case CSSPropertyWebkitMarqueeStyle:
- if (valueID == CSSValueNone || valueID == CSSValueSlide || valueID == CSSValueScroll || valueID == CSSValueAlternate)
- return true;
- break;
- case CSSPropertyWebkitNbspMode: // normal | space
- if (valueID == CSSValueNormal || valueID == CSSValueSpace)
- return true;
- break;
-#if ENABLE(ACCELERATED_OVERFLOW_SCROLLING)
- case CSSPropertyWebkitOverflowScrolling:
- if (valueID == CSSValueAuto || valueID == CSSValueTouch)
- return true;
- break;
-#endif
- case CSSPropertyWebkitPrintColorAdjust:
- if (valueID == CSSValueExact || valueID == CSSValueEconomy)
- return true;
- break;
-#if ENABLE(CSS_REGIONS)
- case CSSPropertyWebkitRegionBreakAfter:
- case CSSPropertyWebkitRegionBreakBefore:
- if (valueID == CSSValueAuto || valueID == CSSValueAlways || valueID == CSSValueAvoid || valueID == CSSValueLeft || valueID == CSSValueRight)
- return true;
- break;
- case CSSPropertyWebkitRegionBreakInside:
- if (valueID == CSSValueAuto || valueID == CSSValueAvoid)
- return true;
- break;
- case CSSPropertyWebkitRegionFragment:
- if (valueID == CSSValueAuto || valueID == CSSValueBreak)
- return true;
- break;
-#endif
- case CSSPropertyWebkitRtlOrdering:
- if (valueID == CSSValueLogical || valueID == CSSValueVisual)
- return true;
- break;
-
- case CSSPropertyWebkitRubyPosition:
- if (valueID == CSSValueBefore || valueID == CSSValueAfter || valueID == CSSValueInterCharacter)
- return true;
- break;
-
-#if ENABLE(CSS3_TEXT)
- case CSSPropertyWebkitTextAlignLast:
- // auto | start | end | left | right | center | justify
- if ((valueID >= CSSValueLeft && valueID <= CSSValueJustify) || valueID == CSSValueStart || valueID == CSSValueEnd || valueID == CSSValueAuto)
- return true;
- break;
-#endif // CSS3_TEXT
- case CSSPropertyWebkitTextCombine:
- if (valueID == CSSValueNone || valueID == CSSValueHorizontal)
- return true;
- break;
-#if ENABLE(CSS3_TEXT)
- case CSSPropertyWebkitTextJustify:
- // auto | none | inter-word | distribute
- if (valueID == CSSValueInterWord || valueID == CSSValueDistribute || valueID == CSSValueAuto || valueID == CSSValueNone)
- return true;
- break;
-#endif // CSS3_TEXT
- case CSSPropertyWebkitTextSecurity:
- // disc | circle | square | none | inherit
- if (valueID == CSSValueDisc || valueID == CSSValueCircle || valueID == CSSValueSquare || valueID == CSSValueNone)
- return true;
- break;
-#if ENABLE(IOS_TEXT_AUTOSIZING)
- case CSSPropertyWebkitTextSizeAdjust:
- if (!parserContext.textAutosizingEnabled)
- return false;
-
- if (valueID == CSSValueAuto || valueID == CSSValueNone)
- return true;
- break;
-#endif
- case CSSPropertyTransformStyle:
- case CSSPropertyWebkitTransformStyle:
- if (valueID == CSSValueFlat || valueID == CSSValuePreserve3d)
- return true;
- break;
- case CSSPropertyWebkitUserDrag: // auto | none | element
- if (valueID == CSSValueAuto || valueID == CSSValueNone || valueID == CSSValueElement)
- return true;
- break;
- case CSSPropertyWebkitUserModify: // read-only | read-write
- if (valueID == CSSValueReadOnly || valueID == CSSValueReadWrite || valueID == CSSValueReadWritePlaintextOnly) {
- if (styleSheetContents)
- styleSheetContents->parserSetUsesStyleBasedEditability();
- return true;
- }
- break;
- case CSSPropertyWebkitUserSelect: // auto | none | text | all
- if (valueID == CSSValueAuto || valueID == CSSValueNone || valueID == CSSValueText)
- return true;
- if (valueID == CSSValueAll) {
- if (styleSheetContents)
- styleSheetContents->parserSetUsesStyleBasedEditability();
- return true;
- }
- break;
- case CSSPropertyWebkitWritingMode:
- if (valueID >= CSSValueHorizontalTb && valueID <= CSSValueHorizontalBt)
- return true;
- break;
- case CSSPropertyWhiteSpace: // normal | pre | nowrap | inherit
- if (valueID == CSSValueNormal || valueID == CSSValuePre || valueID == CSSValuePreWrap || valueID == CSSValuePreLine || valueID == CSSValueNowrap)
- return true;
- break;
- case CSSPropertyWordBreak: // normal | break-all | keep-all | break-word (this is a custom extension)
- if (valueID == CSSValueNormal || valueID == CSSValueBreakAll || valueID == CSSValueKeepAll || valueID == CSSValueBreakWord)
- return true;
- break;
-#if ENABLE(CSS_TRAILING_WORD)
- case CSSPropertyAppleTrailingWord: // auto | -apple-partially-balanced
- if (valueID == CSSValueAuto || valueID == CSSValueWebkitPartiallyBalanced)
- return true;
- break;
-#endif
- case CSSPropertyFontVariantPosition: // normal | sub | super
- if (valueID == CSSValueNormal || valueID == CSSValueSub || valueID == CSSValueSuper)
- return true;
- break;
- case CSSPropertyFontVariantCaps: // normal | small-caps | all-small-caps | petite-caps | all-petite-caps | unicase | titling-caps
- if (valueID == CSSValueNormal || valueID == CSSValueSmallCaps || valueID == CSSValueAllSmallCaps || valueID == CSSValuePetiteCaps || valueID == CSSValueAllPetiteCaps || valueID == CSSValueUnicase || valueID == CSSValueTitlingCaps)
- return true;
- break;
- case CSSPropertyFontVariantAlternates: // We only support the normal and historical-forms values.
- if (valueID == CSSValueNormal || valueID == CSSValueHistoricalForms)
- return true;
- break;
-
- case CSSPropertyBreakAfter:
- case CSSPropertyBreakBefore:
- // auto | avoid | left | right | recto | verso | column | page | region | avoid-page | avoid-column | avoid-region
- if (valueID == CSSValueAuto || valueID == CSSValueAvoid || valueID == CSSValueLeft || valueID == CSSValueRight
- || valueID == CSSValueRecto || valueID == CSSValueVerso || valueID == CSSValueColumn || valueID == CSSValuePage
- || valueID == CSSValueRegion || valueID == CSSValueAvoidColumn || valueID == CSSValueAvoidPage || valueID == CSSValueAvoidRegion)
- return true;
- break;
- case CSSPropertyBreakInside:
- // auto | avoid | avoid-page | avoid-column | avoid-region
- if (valueID == CSSValueAuto || valueID == CSSValueAvoid || valueID == CSSValueAvoidColumn || valueID == CSSValueAvoidPage || valueID == CSSValueAvoidRegion)
- return true;
- break;
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
-#if !ENABLE(CSS_GRID_LAYOUT)
- UNUSED_PARAM(parserContext);
-#endif
- return false;
-}
-
-static inline bool isKeywordPropertyID(CSSPropertyID propertyId)
-{
- switch (propertyId) {
- case CSSPropertyBorderBottomStyle:
- case CSSPropertyBorderCollapse:
- case CSSPropertyBorderLeftStyle:
- case CSSPropertyBorderRightStyle:
- case CSSPropertyBorderTopStyle:
- case CSSPropertyBoxSizing:
- case CSSPropertyBreakAfter:
- case CSSPropertyBreakBefore:
- case CSSPropertyBreakInside:
- case CSSPropertyCaptionSide:
- case CSSPropertyClear:
- case CSSPropertyDirection:
- case CSSPropertyDisplay:
- case CSSPropertyEmptyCells:
- case CSSPropertyFloat:
- case CSSPropertyFontStyle:
- case CSSPropertyImageRendering:
- case CSSPropertyListStylePosition:
- case CSSPropertyListStyleType:
- case CSSPropertyObjectFit:
- case CSSPropertyOutlineStyle:
- case CSSPropertyOverflowWrap:
- case CSSPropertyOverflowX:
- case CSSPropertyOverflowY:
- case CSSPropertyPageBreakAfter:
- case CSSPropertyPageBreakBefore:
- case CSSPropertyPageBreakInside:
- case CSSPropertyPointerEvents:
- case CSSPropertyPosition:
- case CSSPropertyResize:
- case CSSPropertySpeak:
- case CSSPropertyTableLayout:
- case CSSPropertyTextLineThroughMode:
- case CSSPropertyTextLineThroughStyle:
- case CSSPropertyTextOverflow:
- case CSSPropertyTextOverlineMode:
- case CSSPropertyTextOverlineStyle:
- case CSSPropertyTextRendering:
- case CSSPropertyTextTransform:
- case CSSPropertyTextUnderlineMode:
- case CSSPropertyTextUnderlineStyle:
- case CSSPropertyVisibility:
- case CSSPropertyWebkitAppearance:
-#if ENABLE(CSS_COMPOSITING)
- case CSSPropertyMixBlendMode:
- case CSSPropertyIsolation:
-#endif
- case CSSPropertyWebkitBackfaceVisibility:
- case CSSPropertyWebkitBorderAfterStyle:
- case CSSPropertyWebkitBorderBeforeStyle:
- case CSSPropertyWebkitBorderEndStyle:
- case CSSPropertyWebkitBorderFit:
- case CSSPropertyWebkitBorderStartStyle:
- case CSSPropertyWebkitBoxAlign:
-#if ENABLE(CSS_BOX_DECORATION_BREAK)
- case CSSPropertyWebkitBoxDecorationBreak:
-#endif
- case CSSPropertyWebkitBoxDirection:
- case CSSPropertyWebkitBoxLines:
- case CSSPropertyWebkitBoxOrient:
- case CSSPropertyWebkitBoxPack:
- case CSSPropertyWebkitColumnBreakAfter:
- case CSSPropertyWebkitColumnBreakBefore:
- case CSSPropertyWebkitColumnBreakInside:
- case CSSPropertyColumnFill:
- case CSSPropertyColumnRuleStyle:
- case CSSPropertyFlexDirection:
- case CSSPropertyFlexWrap:
- case CSSPropertyWebkitFontKerning:
- case CSSPropertyWebkitFontSmoothing:
- case CSSPropertyWebkitHyphens:
- case CSSPropertyWebkitLineAlign:
- case CSSPropertyWebkitLineBreak:
- case CSSPropertyWebkitLineSnap:
- case CSSPropertyWebkitMarginAfterCollapse:
- case CSSPropertyWebkitMarginBeforeCollapse:
- case CSSPropertyWebkitMarginBottomCollapse:
- case CSSPropertyWebkitMarginTopCollapse:
- case CSSPropertyWebkitMarqueeDirection:
- case CSSPropertyWebkitMarqueeStyle:
- case CSSPropertyWebkitNbspMode:
-#if ENABLE(ACCELERATED_OVERFLOW_SCROLLING)
- case CSSPropertyWebkitOverflowScrolling:
-#endif
- case CSSPropertyWebkitPrintColorAdjust:
-#if ENABLE(CSS_REGIONS)
- case CSSPropertyWebkitRegionBreakAfter:
- case CSSPropertyWebkitRegionBreakBefore:
- case CSSPropertyWebkitRegionBreakInside:
- case CSSPropertyWebkitRegionFragment:
-#endif
- case CSSPropertyWebkitRtlOrdering:
- case CSSPropertyWebkitRubyPosition:
-#if ENABLE(CSS3_TEXT)
- case CSSPropertyWebkitTextAlignLast:
-#endif // CSS3_TEXT
- case CSSPropertyWebkitTextCombine:
-#if ENABLE(CSS3_TEXT)
- case CSSPropertyWebkitTextJustify:
-#endif // CSS3_TEXT
- case CSSPropertyWebkitTextSecurity:
- case CSSPropertyTransformStyle:
- case CSSPropertyWebkitTransformStyle:
- case CSSPropertyWebkitUserDrag:
- case CSSPropertyWebkitUserModify:
- case CSSPropertyWebkitUserSelect:
- case CSSPropertyWebkitWritingMode:
- case CSSPropertyWhiteSpace:
- case CSSPropertyWordBreak:
- case CSSPropertyWordWrap:
-#if ENABLE(TOUCH_EVENTS)
- case CSSPropertyTouchAction:
-#endif
-#if ENABLE(CSS_SCROLL_SNAP)
- case CSSPropertyWebkitScrollSnapType:
-#endif
-#if ENABLE(CSS_TRAILING_WORD)
- case CSSPropertyAppleTrailingWord:
-#endif
- case CSSPropertyFontVariantPosition:
- case CSSPropertyFontVariantCaps:
- case CSSPropertyFontVariantAlternates:
- return true;
- default:
- return false;
- }
-}
-
-static bool isUniversalKeyword(const String& string)
-{
- // These keywords can be used for all properties.
- return equalLettersIgnoringASCIICase(string, "initial")
- || equalLettersIgnoringASCIICase(string, "inherit")
- || equalLettersIgnoringASCIICase(string, "unset")
- || equalLettersIgnoringASCIICase(string, "revert");
-}
-
-static CSSParser::ParseResult parseKeywordValue(MutableStyleProperties& declaration, CSSPropertyID propertyId, const String& string, bool important, const CSSParserContext& parserContext, StyleSheetContents* styleSheetContents)
-{
- ASSERT(!string.isEmpty());
-
- if (!isKeywordPropertyID(propertyId)) {
- if (!isUniversalKeyword(string))
- return CSSParser::ParseResult::Error;
-
- // Don't try to parse initial/inherit/unset/revert shorthands; return an error so the caller will use the full CSS parser.
- if (shorthandForProperty(propertyId).length())
- return CSSParser::ParseResult::Error;
- }
-
- CSSParserString cssString;
- cssString.init(string);
- CSSValueID valueID = cssValueKeywordID(cssString);
-
- if (!valueID)
- return CSSParser::ParseResult::Error;
-
- RefPtr<CSSValue> value;
- if (valueID == CSSValueInherit)
- value = CSSValuePool::singleton().createInheritedValue();
- else if (valueID == CSSValueInitial)
- value = CSSValuePool::singleton().createExplicitInitialValue();
- else if (valueID == CSSValueUnset)
- value = CSSValuePool::singleton().createUnsetValue();
- else if (valueID == CSSValueRevert)
- value = CSSValuePool::singleton().createRevertValue();
- else if (isValidKeywordPropertyAndValue(propertyId, valueID, parserContext, styleSheetContents))
- value = CSSValuePool::singleton().createIdentifierValue(valueID);
- else
- return CSSParser::ParseResult::Error;
-
- return declaration.addParsedProperty(CSSProperty(propertyId, value.releaseNonNull(), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
-}
-
-template <typename CharacterType>
-static bool parseTransformTranslateArguments(WebKitCSSTransformValue& transformValue, CharacterType* characters, unsigned length, unsigned start, unsigned expectedCount)
-{
- auto& cssValuePool = CSSValuePool::singleton();
- while (expectedCount) {
- size_t end = WTF::find(characters, length, expectedCount == 1 ? ')' : ',', start);
- if (end == notFound || (expectedCount == 1 && end != length - 1))
- return false;
- unsigned argumentLength = end - start;
- CSSPrimitiveValue::UnitTypes unit = CSSPrimitiveValue::CSS_NUMBER;
- double number;
- if (!parseSimpleLength(characters + start, argumentLength, unit, number))
- return false;
- if (unit != CSSPrimitiveValue::CSS_PX && (number || unit != CSSPrimitiveValue::CSS_NUMBER))
- return false;
- transformValue.append(cssValuePool.createValue(number, CSSPrimitiveValue::CSS_PX));
- start = end + 1;
- --expectedCount;
- }
- return true;
-}
-
-static CSSParser::ParseResult parseTranslateTransformValue(MutableStyleProperties& properties, CSSPropertyID propertyID, const String& string, bool important)
-{
- if (propertyID != CSSPropertyTransform)
- return CSSParser::ParseResult::Error;
-
- static const unsigned shortestValidTransformStringLength = 12;
- static const unsigned likelyMultipartTransformStringLengthCutoff = 32;
- if (string.length() < shortestValidTransformStringLength || string.length() > likelyMultipartTransformStringLengthCutoff)
- return CSSParser::ParseResult::Error;
-
- if (!string.startsWith("translate", false))
- return CSSParser::ParseResult::Error;
-
- UChar c9 = toASCIILower(string[9]);
- UChar c10 = toASCIILower(string[10]);
-
- WebKitCSSTransformValue::TransformOperationType transformType;
- unsigned expectedArgumentCount = 1;
- unsigned argumentStart = 11;
- if (c9 == 'x' && c10 == '(')
- transformType = WebKitCSSTransformValue::TranslateXTransformOperation;
- else if (c9 == 'y' && c10 == '(')
- transformType = WebKitCSSTransformValue::TranslateYTransformOperation;
- else if (c9 == 'z' && c10 == '(')
- transformType = WebKitCSSTransformValue::TranslateZTransformOperation;
- else if (c9 == '(') {
- transformType = WebKitCSSTransformValue::TranslateTransformOperation;
- expectedArgumentCount = 2;
- argumentStart = 10;
- } else if (c9 == '3' && c10 == 'd' && string[11] == '(') {
- transformType = WebKitCSSTransformValue::Translate3DTransformOperation;
- expectedArgumentCount = 3;
- argumentStart = 12;
- } else
- return CSSParser::ParseResult::Error;
-
- auto transformValue = WebKitCSSTransformValue::create(transformType);
- bool success;
- if (string.is8Bit())
- success = parseTransformTranslateArguments(transformValue, string.characters8(), string.length(), argumentStart, expectedArgumentCount);
- else
- success = parseTransformTranslateArguments(transformValue, string.characters16(), string.length(), argumentStart, expectedArgumentCount);
- if (!success)
- return CSSParser::ParseResult::Error;
-
- auto result = CSSValueList::createSpaceSeparated();
- result->append(WTFMove(transformValue));
- return properties.addParsedProperty(CSSProperty(CSSPropertyTransform, WTFMove(result), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
-}
-
-RefPtr<CSSValueList> CSSParser::parseFontFaceValue(const AtomicString& string)
-{
- if (string.isEmpty())
- return nullptr;
-
- auto valueList = CSSValueList::createCommaSeparated();
-
- Vector<String> familyNames;
- string.string().split(',', true, familyNames);
-
- auto& cssValuePool = CSSValuePool::singleton();
- for (auto& familyName : familyNames) {
- String stripped = stripLeadingAndTrailingHTMLSpaces(familyName);
- if (stripped.isEmpty())
- return nullptr;
-
- RefPtr<CSSValue> value;
- for (auto propertyID : { CSSValueSerif, CSSValueSansSerif, CSSValueCursive, CSSValueFantasy, CSSValueMonospace, CSSValueWebkitBody }) {
- if (equalIgnoringASCIICase(stripped, getValueName(propertyID))) {
- value = cssValuePool.createIdentifierValue(propertyID);
- break;
- }
- }
- if (!value)
- value = cssValuePool.createFontFamilyValue(stripped);
- valueList->append(value.releaseNonNull());
- }
-
- return WTFMove(valueList);
-}
-
-CSSParser::ParseResult CSSParser::parseValue(MutableStyleProperties& declaration, CSSPropertyID propertyID, const String& string, bool important, CSSParserMode cssParserMode, StyleSheetContents* contextStyleSheet)
-{
- ASSERT(!string.isEmpty());
- CSSParser::ParseResult result = parseSimpleLengthValue(declaration, propertyID, string, important, cssParserMode);
- if (result != ParseResult::Error)
- return result;
-
- result = parseColorValue(declaration, propertyID, string, important, cssParserMode);
- if (result != ParseResult::Error)
- return result;
-
- CSSParserContext context(cssParserMode);
- if (contextStyleSheet) {
- context = contextStyleSheet->parserContext();
- context.mode = cssParserMode;
- }
-
- result = parseKeywordValue(declaration, propertyID, string, important, context, contextStyleSheet);
- if (result != ParseResult::Error)
- return result;
-
- result = parseTranslateTransformValue(declaration, propertyID, string, important);
- if (result != ParseResult::Error)
- return result;
-
- CSSParser parser(context);
- return parser.parseValue(declaration, propertyID, string, important, contextStyleSheet);
-}
-
-CSSParser::ParseResult CSSParser::parseCustomPropertyValue(MutableStyleProperties& declaration, const AtomicString& propertyName, const String& string, bool important, CSSParserMode cssParserMode, StyleSheetContents* contextStyleSheet)
-{
- CSSParserContext context(cssParserMode);
- if (contextStyleSheet) {
- context = contextStyleSheet->parserContext();
- context.mode = cssParserMode;
- }
-
- CSSParser parser(context);
- parser.setCustomPropertyName(propertyName);
- return parser.parseValue(declaration, CSSPropertyCustom, string, important, contextStyleSheet);
-}
-
-CSSParser::ParseResult CSSParser::parseValue(MutableStyleProperties& declaration, CSSPropertyID propertyID, const String& string, bool important, StyleSheetContents* contextStyleSheet)
-{
- setStyleSheet(contextStyleSheet);
-
- setupParser("@-webkit-value{", string, "} ");
-
- m_id = propertyID;
- m_important = important;
-
- cssyyparse(this);
-
- m_rule = nullptr;
-
- ParseResult result = ParseResult::Error;
-
- if (!m_parsedProperties.isEmpty()) {
- result = declaration.addParsedProperties(m_parsedProperties) ? ParseResult::Changed : ParseResult::Unchanged;
- clearProperties();
- }
-
- return result;
-}
-
-// The color will only be changed when string contains a valid CSS color, so callers
-// can set it to a default color and ignore the boolean result.
-bool CSSParser::parseColor(RGBA32& color, const String& string, bool strict)
-{
- if (string.isEmpty())
- return false;
-
- // First try creating a color specified by name, rgba(), rgb() or "#" syntax.
- if (fastParseColor(color, string, strict))
- return true;
-
- CSSParser parser(CSSStrictMode);
-
- // In case the fast-path parser didn't understand the color, try the full parser.
- if (!parser.parseColor(string))
- return false;
-
- CSSValue& value = *parser.m_parsedProperties.first().value();
- if (!is<CSSPrimitiveValue>(value))
- return false;
-
- CSSPrimitiveValue& primitiveValue = downcast<CSSPrimitiveValue>(value);
- if (!primitiveValue.isRGBColor())
- return false;
-
- color = primitiveValue.getRGBA32Value();
- return true;
-}
-
-bool CSSParser::parseColor(const String& string)
-{
- setupParser("@-webkit-decls{color:", string, "} ");
- cssyyparse(this);
- m_rule = nullptr;
-
- return !m_parsedProperties.isEmpty() && m_parsedProperties.first().id() == CSSPropertyColor;
-}
-
-bool CSSParser::parseSystemColor(RGBA32& color, const String& string, Document* document)
-{
- if (!document || !document->page())
- return false;
-
- CSSParserString cssColor;
- cssColor.init(string);
- CSSValueID id = cssValueKeywordID(cssColor);
- if (!validPrimitiveValueColor(id))
- return false;
-
- Color parsedColor = document->page()->theme().systemColor(id);
- if (!parsedColor.isValid())
- return false;
-
- color = parsedColor.rgb();
- return true;
-}
-
-void CSSParser::parseSelector(const String& string, CSSSelectorList& selectorList)
-{
- m_selectorListForParseSelector = &selectorList;
-
- setupParser("@-webkit-selector{", string, "}");
-
- cssyyparse(this);
-
- m_selectorListForParseSelector = nullptr;
-}
-
-Ref<ImmutableStyleProperties> CSSParser::parseInlineStyleDeclaration(const String& string, Element* element)
-{
- CSSParserContext context = element->document().elementSheet().contents().parserContext();
- context.mode = strictToCSSParserMode(element->isHTMLElement() && !element->document().inQuirksMode());
- return CSSParser(context).parseDeclaration(string, &element->document().elementSheet().contents());
-}
-
-Ref<ImmutableStyleProperties> CSSParser::parseDeclaration(const String& string, StyleSheetContents* contextStyleSheet)
-{
- setStyleSheet(contextStyleSheet);
-
- setupParser("@-webkit-decls{", string, "} ");
- cssyyparse(this);
- m_rule = nullptr;
-
- Ref<ImmutableStyleProperties> style = createStyleProperties();
- clearProperties();
- return style;
-}
-
-
-bool CSSParser::parseDeclaration(MutableStyleProperties& declaration, const String& string, RefPtr<CSSRuleSourceData>&& ruleSourceData, StyleSheetContents* contextStyleSheet)
-{
- // Length of the "@-webkit-decls{" prefix.
- static const unsigned prefixLength = 15;
-
- setStyleSheet(contextStyleSheet);
-
- if (ruleSourceData) {
- m_currentRuleDataStack = std::make_unique<RuleSourceDataList>();
- m_currentRuleDataStack->append(*ruleSourceData);
- }
-
- setupParser("@-webkit-decls{", string, "} ");
- cssyyparse(this);
- m_rule = nullptr;
-
- bool ok = false;
- if (!m_parsedProperties.isEmpty()) {
- ok = true;
- declaration.addParsedProperties(m_parsedProperties);
- clearProperties();
- }
-
- if (ruleSourceData) {
- ASSERT(m_currentRuleDataStack->size() == 1);
- ruleSourceData->ruleBodyRange.start = 0;
- ruleSourceData->ruleBodyRange.end = string.length();
- for (size_t i = 0, size = ruleSourceData->styleSourceData->propertyData.size(); i < size; ++i) {
- CSSPropertySourceData& propertyData = ruleSourceData->styleSourceData->propertyData.at(i);
- propertyData.range.start -= prefixLength;
- propertyData.range.end -= prefixLength;
- }
-
- fixUnparsedPropertyRanges(*ruleSourceData);
- m_currentRuleDataStack.reset();
- }
-
- return ok;
-}
-
-std::unique_ptr<MediaQuery> CSSParser::parseMediaQuery(const String& string)
-{
- if (string.isEmpty())
- return nullptr;
-
- ASSERT(!m_mediaQuery);
-
- // can't use { because tokenizer state switches from mediaquery to initial state when it sees { token.
- // instead insert one " " (which is WHITESPACE in CSSGrammar.y)
- setupParser("@-webkit-mediaquery ", string, "} ");
- cssyyparse(this);
-
- return WTFMove(m_mediaQuery);
-}
-
-Vector<CSSParser::SourceSize> CSSParser::parseSizesAttribute(StringView string)
-{
- Vector<SourceSize> result;
-
- if (string.isEmpty())
- return result;
-
- ASSERT(!m_sourceSizeList);
-
- setupParser("@-webkit-sizesattr ", string, "}");
- cssyyparse(this);
-
- if (!m_sourceSizeList)
- return result;
-
- result = WTFMove(*m_sourceSizeList);
- m_sourceSizeList = nullptr;
- return result;
-}
-
-// FIXME(141289): The following two constructors are only needed because of a bug in MSVC 2013 (and prior).
-// We should remove this code as soon as a Visual Studio update that fixes this problem is released.
-
-CSSParser::SourceSize::SourceSize(CSSParser::SourceSize&& original)
- : expression(WTFMove(original.expression))
- , length(WTFMove(original.length))
-{
-}
-
-CSSParser::SourceSize::SourceSize(MediaQueryExpression&& expression, Ref<CSSValue>&& value)
- : expression(WTFMove(expression))
- , length(WTFMove(value))
-{
-}
-
-Optional<CSSParser::SourceSize> CSSParser::sourceSize(MediaQueryExpression&& expression, CSSParserValue& parserValue)
-{
- RefPtr<CSSValue> value;
- if (isCalculation(parserValue)) {
- auto* args = parserValue.function->args.get();
- if (args && args->size())
- value = CSSCalcValue::create(parserValue.function->name, *args, CalculationRangeNonNegative);
- }
- if (!value)
- value = parserValue.createCSSValue();
- destroy(parserValue);
- if (!value)
- return Nullopt;
- // FIXME: Calling the constructor explicitly here to work around an MSVC bug.
- // For other compilers, we did not need to define the constructors and we could use aggregate initialization syntax.
- return SourceSize(WTFMove(expression), value.releaseNonNull());
-}
-
-static inline void filterProperties(bool important, const ParsedPropertyVector& input, Vector<CSSProperty, 256>& output, size_t& unusedEntries, std::bitset<numCSSProperties>& seenProperties, HashSet<AtomicString>& seenCustomProperties)
-{
- // Add properties in reverse order so that highest priority definitions are reached first. Duplicate definitions can then be ignored when found.
- for (int i = input.size() - 1; i >= 0; --i) {
- const CSSProperty& property = input[i];
- if (property.isImportant() != important)
- continue;
-
- if (property.id() == CSSPropertyCustom) {
- if (property.value()) {
- auto& name = downcast<CSSCustomPropertyValue>(*property.value()).name();
- if (!seenCustomProperties.add(name).isNewEntry)
- continue;
- output[--unusedEntries] = property;
- }
- continue;
- }
-
- const unsigned propertyIDIndex = property.id() - firstCSSProperty;
- ASSERT(propertyIDIndex < seenProperties.size());
- if (seenProperties[propertyIDIndex])
- continue;
- seenProperties.set(propertyIDIndex);
- output[--unusedEntries] = property;
- }
-}
-
-Ref<ImmutableStyleProperties> CSSParser::createStyleProperties()
-{
- std::bitset<numCSSProperties> seenProperties;
- size_t unusedEntries = m_parsedProperties.size();
- Vector<CSSProperty, 256> results(unusedEntries);
-
- // Important properties have higher priority, so add them first. Duplicate definitions can then be ignored when found.
- HashSet<AtomicString> seenCustomProperties;
- filterProperties(true, m_parsedProperties, results, unusedEntries, seenProperties, seenCustomProperties);
- filterProperties(false, m_parsedProperties, results, unusedEntries, seenProperties, seenCustomProperties);
- if (unusedEntries)
- results.remove(0, unusedEntries);
-
- return ImmutableStyleProperties::create(results.data(), results.size(), m_context.mode);
-}
-
-void CSSParser::addProperty(CSSPropertyID propId, RefPtr<CSSValue>&& value, bool important, bool implicit)
-{
- // This property doesn't belong to a shorthand or is a CSS variable (which will be resolved later).
- if (!m_currentShorthand) {
- m_parsedProperties.append(CSSProperty(propId, WTFMove(value), important, false, CSSPropertyInvalid, m_implicitShorthand || implicit));
- return;
- }
-
- auto shorthands = matchingShorthandsForLonghand(propId);
- if (shorthands.size() == 1)
- m_parsedProperties.append(CSSProperty(propId, WTFMove(value), important, true, CSSPropertyInvalid, m_implicitShorthand || implicit));
- else
- m_parsedProperties.append(CSSProperty(propId, WTFMove(value), important, true, indexOfShorthandForLonghand(m_currentShorthand, shorthands), m_implicitShorthand || implicit));
-}
-
-void CSSParser::rollbackLastProperties(int num)
-{
- ASSERT(num >= 0);
- ASSERT(m_parsedProperties.size() >= static_cast<unsigned>(num));
- m_parsedProperties.shrink(m_parsedProperties.size() - num);
-}
-
-void CSSParser::clearProperties()
-{
- m_parsedProperties.clear();
- m_numParsedPropertiesBeforeMarginBox = invalidParsedPropertiesCount;
-}
-
-URL CSSParser::completeURL(const CSSParserContext& context, const String& url)
-{
- if (url.isNull())
- return URL();
- if (context.charset.isEmpty())
- return URL(context.baseURL, url);
- return URL(context.baseURL, url, context.charset);
-}
-
-URL CSSParser::completeURL(const String& url) const
-{
- return completeURL(m_context, url);
-}
-
-bool CSSParser::validateCalculationUnit(ValueWithCalculation& valueWithCalculation, Units unitFlags)
-{
- bool mustBeNonNegative = unitFlags & FNonNeg;
-
- RefPtr<CSSCalcValue> calculation;
- if (valueWithCalculation.calculation()) {
- // The calculation value was already parsed so we reuse it. However, we may need to update its range.
- calculation = valueWithCalculation.calculation();
- calculation->setPermittedValueRange(mustBeNonNegative ? CalculationRangeNonNegative : CalculationRangeAll);
- } else {
- valueWithCalculation.setCalculation(parseCalculation(valueWithCalculation, mustBeNonNegative ? CalculationRangeNonNegative : CalculationRangeAll));
- calculation = valueWithCalculation.calculation();
- if (!calculation)
- return false;
- }
-
- bool isValid = false;
- switch (calculation->category()) {
- case CalcNumber:
- isValid = (unitFlags & FNumber);
- if (!isValid && (unitFlags & FInteger) && calculation->isInt())
- isValid = true;
- if (!isValid && (unitFlags & FPositiveInteger) && calculation->isInt() && calculation->isPositive())
- isValid = true;
- break;
- case CalcLength:
- isValid = (unitFlags & FLength);
- break;
- case CalcPercent:
- isValid = (unitFlags & FPercent);
- break;
- case CalcPercentLength:
- isValid = (unitFlags & FPercent) && (unitFlags & FLength);
- break;
- case CalcPercentNumber:
- isValid = (unitFlags & FPercent) && (unitFlags & FNumber);
- break;
- case CalcAngle:
- isValid = (unitFlags & FAngle);
- break;
- case CalcTime:
- isValid = (unitFlags & FTime);
- break;
- case CalcFrequency:
- isValid = (unitFlags & FFrequency);
- break;
- case CalcOther:
- break;
- }
-
- return isValid;
-}
-
-inline bool CSSParser::shouldAcceptUnitLessValues(CSSParserValue& value, Units unitFlags, CSSParserMode cssParserMode)
-{
- // Qirks mode and svg presentation attributes accept unit less values.
- return (unitFlags & (FLength | FAngle | FTime)) && (!value.fValue || cssParserMode == CSSQuirksMode || cssParserMode == SVGAttributeMode);
-}
-
-bool CSSParser::validateUnit(ValueWithCalculation& valueWithCalculation, Units unitFlags, CSSParserMode cssParserMode)
-{
- if (isCalculation(valueWithCalculation))
- return validateCalculationUnit(valueWithCalculation, unitFlags);
-
- bool b = false;
- switch (valueWithCalculation.value().unit) {
- case CSSPrimitiveValue::CSS_NUMBER:
- b = (unitFlags & FNumber);
- if (!b && shouldAcceptUnitLessValues(valueWithCalculation, unitFlags, cssParserMode)) {
- valueWithCalculation.value().unit = (unitFlags & FLength) ? CSSPrimitiveValue::CSS_PX :
- ((unitFlags & FAngle) ? CSSPrimitiveValue::CSS_DEG : CSSPrimitiveValue::CSS_MS);
- b = true;
- }
- if (!b && (unitFlags & FInteger) && valueWithCalculation.value().isInt)
- b = true;
- if (!b && (unitFlags & FPositiveInteger) && valueWithCalculation.value().isInt && valueWithCalculation.value().fValue > 0)
- b = true;
- break;
- case CSSPrimitiveValue::CSS_PERCENTAGE:
- b = (unitFlags & FPercent);
- break;
- case CSSParserValue::Q_EMS:
- case CSSPrimitiveValue::CSS_EMS:
- case CSSPrimitiveValue::CSS_REMS:
- case CSSPrimitiveValue::CSS_CHS:
- case CSSPrimitiveValue::CSS_EXS:
- case CSSPrimitiveValue::CSS_PX:
- case CSSPrimitiveValue::CSS_CM:
- case CSSPrimitiveValue::CSS_MM:
- case CSSPrimitiveValue::CSS_IN:
- case CSSPrimitiveValue::CSS_PT:
- case CSSPrimitiveValue::CSS_PC:
- case CSSPrimitiveValue::CSS_VW:
- case CSSPrimitiveValue::CSS_VH:
- case CSSPrimitiveValue::CSS_VMIN:
- case CSSPrimitiveValue::CSS_VMAX:
- b = (unitFlags & FLength);
- break;
- case CSSPrimitiveValue::CSS_MS:
- case CSSPrimitiveValue::CSS_S:
- b = (unitFlags & FTime);
- break;
- case CSSPrimitiveValue::CSS_DEG:
- case CSSPrimitiveValue::CSS_RAD:
- case CSSPrimitiveValue::CSS_GRAD:
- case CSSPrimitiveValue::CSS_TURN:
- b = (unitFlags & FAngle);
- break;
-#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
- case CSSPrimitiveValue::CSS_DPPX:
- case CSSPrimitiveValue::CSS_DPI:
- case CSSPrimitiveValue::CSS_DPCM:
- b = (unitFlags & FResolution);
- break;
-#endif
- case CSSPrimitiveValue::CSS_HZ:
- case CSSPrimitiveValue::CSS_KHZ:
- case CSSPrimitiveValue::CSS_DIMENSION:
- default:
- break;
- }
- if (b && unitFlags & FNonNeg && valueWithCalculation.value().fValue < 0)
- b = false;
- if (b && std::isinf(valueWithCalculation.value().fValue))
- b = false;
- return b;
-}
-
-inline Ref<CSSPrimitiveValue> CSSParser::createPrimitiveNumericValue(ValueWithCalculation& valueWithCalculation)
-{
- if (valueWithCalculation.calculation())
- return CSSPrimitiveValue::create(valueWithCalculation.calculation());
-
- CSSParserValue& value = valueWithCalculation;
-#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
- ASSERT((value.unit >= CSSPrimitiveValue::CSS_NUMBER && value.unit <= CSSPrimitiveValue::CSS_KHZ)
- || (value.unit >= CSSPrimitiveValue::CSS_TURN && value.unit <= CSSPrimitiveValue::CSS_CHS)
- || (value.unit >= CSSPrimitiveValue::CSS_VW && value.unit <= CSSPrimitiveValue::CSS_VMAX)
- || (value.unit >= CSSPrimitiveValue::CSS_DPPX && value.unit <= CSSPrimitiveValue::CSS_DPCM));
-#else
- ASSERT((value.unit >= CSSPrimitiveValue::CSS_NUMBER && value.unit <= CSSPrimitiveValue::CSS_KHZ)
- || (value.unit >= CSSPrimitiveValue::CSS_TURN && value.unit <= CSSPrimitiveValue::CSS_CHS)
- || (value.unit >= CSSPrimitiveValue::CSS_VW && value.unit <= CSSPrimitiveValue::CSS_VMAX));
-#endif
- return CSSValuePool::singleton().createValue(value.fValue, static_cast<CSSPrimitiveValue::UnitTypes>(value.unit));
-}
-
-inline Ref<CSSPrimitiveValue> CSSParser::createPrimitiveStringValue(CSSParserValue& value)
-{
- ASSERT(value.unit == CSSPrimitiveValue::CSS_STRING || value.unit == CSSPrimitiveValue::CSS_IDENT);
- return CSSValuePool::singleton().createValue(value.string, CSSPrimitiveValue::CSS_STRING);
-}
-
-static inline bool isComma(CSSParserValue* value)
-{
- return value && value->unit == CSSParserValue::Operator && value->iValue == ',';
-}
-
-static inline bool isForwardSlashOperator(CSSParserValue& value)
-{
- return value.unit == CSSParserValue::Operator && value.iValue == '/';
-}
-
-bool CSSParser::isValidSize(ValueWithCalculation& valueWithCalculation)
-{
- int id = valueWithCalculation.value().id;
- if (id == CSSValueIntrinsic || id == CSSValueMinIntrinsic || id == CSSValueWebkitMinContent || id == CSSValueWebkitMaxContent || id == CSSValueWebkitFillAvailable || id == CSSValueWebkitFitContent)
- return true;
- return !id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg);
-}
-
-inline RefPtr<CSSPrimitiveValue> CSSParser::parseValidPrimitive(CSSValueID identifier, ValueWithCalculation& valueWithCalculation)
-{
- if (identifier)
- return CSSValuePool::singleton().createIdentifierValue(identifier);
-
- if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_STRING)
- return createPrimitiveStringValue(valueWithCalculation);
- if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_NUMBER && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_KHZ)
- return createPrimitiveNumericValue(valueWithCalculation);
- if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_TURN && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_CHS)
- return createPrimitiveNumericValue(valueWithCalculation);
- if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_VW && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_VMAX)
- return createPrimitiveNumericValue(valueWithCalculation);
-#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
- if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_DPPX && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_DPCM)
- return createPrimitiveNumericValue(valueWithCalculation);
-#endif
- if (valueWithCalculation.value().unit >= CSSParserValue::Q_EMS)
- return CSSPrimitiveValue::createAllowingMarginQuirk(valueWithCalculation.value().fValue, CSSPrimitiveValue::CSS_EMS);
- if (valueWithCalculation.calculation())
- return CSSPrimitiveValue::create(valueWithCalculation.calculation());
-
- return nullptr;
-}
-
-void CSSParser::addExpandedPropertyForValue(CSSPropertyID propId, Ref<CSSValue>&& value, bool important)
-{
- const StylePropertyShorthand& shorthand = shorthandForProperty(propId);
- unsigned shorthandLength = shorthand.length();
- if (!shorthandLength) {
- addProperty(propId, WTFMove(value), important);
- return;
- }
-
- ShorthandScope scope(this, propId);
- const CSSPropertyID* longhands = shorthand.properties();
- for (unsigned i = 0; i < shorthandLength; ++i)
- addProperty(longhands[i], value.copyRef(), important);
-}
-
-RefPtr<CSSValue> CSSParser::parseVariableDependentValue(CSSPropertyID propID, const CSSVariableDependentValue& dependentValue, const CustomPropertyValueMap& customProperties, TextDirection direction, WritingMode writingMode)
-{
- m_valueList.reset(new CSSParserValueList());
- if (!dependentValue.valueList().buildParserValueListSubstitutingVariables(m_valueList.get(), customProperties))
- return nullptr;
-
- CSSPropertyID dependentValuePropertyID = dependentValue.propertyID();
- if (CSSProperty::isDirectionAwareProperty(dependentValuePropertyID))
- dependentValuePropertyID = CSSProperty::resolveDirectionAwareProperty(dependentValuePropertyID, direction, writingMode);
-
- if (!parseValue(dependentValuePropertyID, false))
- return nullptr;
-
- for (auto& property : m_parsedProperties) {
- if (property.id() == propID)
- return property.value();
- }
- return nullptr;
-}
-
-static bool isImageSetFunctionValue(const CSSParserValue& value)
-{
- return value.unit == CSSParserValue::Function && (equalLettersIgnoringASCIICase(value.function->name, "image-set(") || equalLettersIgnoringASCIICase(value.function->name, "-webkit-image-set("));
-}
-
-bool CSSParser::parseValue(CSSPropertyID propId, bool important)
-{
- if (!m_valueList || !m_valueList->current())
- return false;
-
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- CSSValueID id = valueWithCalculation.value().id;
-
- if (propId == CSSPropertyCustom)
- return parseCustomPropertyDeclaration(important, id);
-
- if (m_valueList->containsVariables()) {
- auto valueList = CSSValueList::createFromParserValueList(*m_valueList);
- addExpandedPropertyForValue(propId, CSSVariableDependentValue::create(WTFMove(valueList), propId), important);
- return true;
- }
-
- auto& cssValuePool = CSSValuePool::singleton();
- unsigned num = inShorthand() ? 1 : m_valueList->size();
-
- if (id == CSSValueInherit) {
- if (num != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool.createInheritedValue(), important);
- return true;
- }
- else if (id == CSSValueInitial) {
- if (num != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool.createExplicitInitialValue(), important);
- return true;
- } else if (id == CSSValueUnset) {
- if (num != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool.createUnsetValue(), important);
- return true;
- } else if (id == CSSValueRevert) {
- if (num != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool.createRevertValue(), important);
- return true;
- }
-
- if (propId == CSSPropertyAll)
- return false; // "all" doesn't allow you to specify anything other than inherit/initial/unset.
-
- if (isKeywordPropertyID(propId)) {
- if (!isValidKeywordPropertyAndValue(propId, id, m_context, m_styleSheet))
- return false;
- if (m_valueList->next() && !inShorthand())
- return false;
- addProperty(propId, cssValuePool.createIdentifierValue(id), important);
- return true;
- }
-
-#if ENABLE(CSS_DEVICE_ADAPTATION)
- if (inViewport())
- return parseViewportProperty(propId, important);
-#endif
-
- bool validPrimitive = false;
- RefPtr<CSSValue> parsedValue;
-
- switch (propId) {
- case CSSPropertySize: // <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ]
- return parseSize(propId, important);
-
- case CSSPropertyQuotes: // [<string> <string>]+ | none | inherit
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- return parseQuotes(propId, important);
- break;
- case CSSPropertyUnicodeBidi: // normal | embed | bidi-override | isolate | isolate-override | plaintext | inherit
- if (id == CSSValueNormal
- || id == CSSValueEmbed
- || id == CSSValueBidiOverride
- || id == CSSValueWebkitIsolate
- || id == CSSValueWebkitIsolateOverride
- || id == CSSValueWebkitPlaintext)
- validPrimitive = true;
- break;
-
- case CSSPropertyContent: // [ <string> | <uri> | <counter> | attr(X) | open-quote |
- // close-quote | no-open-quote | no-close-quote ]+ | inherit
- return parseContent(propId, important);
-
- case CSSPropertyAlt: // [ <string> | attr(X) ]
- return parseAlt(propId, important);
-
- case CSSPropertyClip: // <shape> | auto | inherit
- if (id == CSSValueAuto)
- validPrimitive = true;
- else if (valueWithCalculation.value().unit == CSSParserValue::Function)
- return parseClipShape(propId, important);
- break;
-
- /* Start of supported CSS properties with validation. This is needed for parseShorthand to work
- * correctly and allows optimization in WebCore::applyRule(..)
- */
- case CSSPropertyOverflow: {
- ShorthandScope scope(this, propId);
- if (num != 1 || !parseValue(CSSPropertyOverflowY, important))
- return false;
-
- RefPtr<CSSValue> overflowXValue;
-
- // FIXME: -webkit-paged-x or -webkit-paged-y only apply to overflow-y. If this value has been
- // set using the shorthand, then for now overflow-x will default to auto, but once we implement
- // pagination controls, it should default to hidden. If the overflow-y value is anything but
- // paged-x or paged-y, then overflow-x and overflow-y should have the same value.
- if (id == CSSValueWebkitPagedX || id == CSSValueWebkitPagedY)
- overflowXValue = cssValuePool.createIdentifierValue(CSSValueAuto);
- else
- overflowXValue = m_parsedProperties.last().value();
- addProperty(CSSPropertyOverflowX, WTFMove(overflowXValue), important);
- return true;
- }
-
- case CSSPropertyTextAlign:
- // left | right | center | justify | -webkit-left | -webkit-right | -webkit-center | -webkit-match-parent
- // | start | end | inherit | -webkit-auto (converted to start)
- // NOTE: <string> is not supported.
- if ((id >= CSSValueWebkitAuto && id <= CSSValueWebkitMatchParent) || id == CSSValueStart || id == CSSValueEnd)
- validPrimitive = true;
- break;
-
- case CSSPropertyFontWeight: { // normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | inherit
- if (m_valueList->size() != 1)
- return false;
- return parseFontWeight(important);
- }
-
- case CSSPropertyFontSynthesis: // none | [ weight || style ]
- return parseFontSynthesis(important);
-
- case CSSPropertyBorderSpacing: {
- if (num == 1) {
- ShorthandScope scope(this, CSSPropertyBorderSpacing);
- if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important))
- return false;
- CSSValue* value = m_parsedProperties.last().value();
- addProperty(CSSPropertyWebkitBorderVerticalSpacing, value, important);
- return true;
- }
- else if (num == 2) {
- ShorthandScope scope(this, CSSPropertyBorderSpacing);
- if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important) || !parseValue(CSSPropertyWebkitBorderVerticalSpacing, important))
- return false;
- return true;
- }
- return false;
- }
- case CSSPropertyWebkitBorderHorizontalSpacing:
- case CSSPropertyWebkitBorderVerticalSpacing:
- validPrimitive = validateUnit(valueWithCalculation, FLength | FNonNeg);
- break;
- case CSSPropertyOutlineColor: // <color> | invert | inherit
- // Outline color has "invert" as additional keyword.
- // Also, we want to allow the special focus color even in strict parsing mode.
- if (id == CSSValueInvert || id == CSSValueWebkitFocusRingColor) {
- validPrimitive = true;
- break;
- }
- FALLTHROUGH;
- case CSSPropertyBackgroundColor: // <color> | inherit
- case CSSPropertyBorderTopColor: // <color> | inherit
- case CSSPropertyBorderRightColor:
- case CSSPropertyBorderBottomColor:
- case CSSPropertyBorderLeftColor:
- case CSSPropertyWebkitBorderStartColor:
- case CSSPropertyWebkitBorderEndColor:
- case CSSPropertyWebkitBorderBeforeColor:
- case CSSPropertyWebkitBorderAfterColor:
- case CSSPropertyColor: // <color> | inherit
- case CSSPropertyTextLineThroughColor: // CSS3 text decoration colors
- case CSSPropertyTextUnderlineColor:
- case CSSPropertyTextOverlineColor:
- case CSSPropertyColumnRuleColor:
- case CSSPropertyWebkitTextDecorationColor:
- case CSSPropertyWebkitTextEmphasisColor:
- case CSSPropertyWebkitTextFillColor:
- case CSSPropertyWebkitTextStrokeColor:
- if (id == CSSValueWebkitText)
- validPrimitive = true; // Always allow this, even when strict parsing is on,
- // since we use this in our UA sheets.
- else if (id == CSSValueCurrentcolor)
- validPrimitive = true;
- else if (isValidSystemColorValue(id) || id == CSSValueMenu
- || (id >= CSSValueWebkitFocusRingColor && id < CSSValueWebkitText && inQuirksMode())) {
- validPrimitive = true;
- } else {
- parsedValue = parseColor();
- if (parsedValue)
- m_valueList->next();
- }
- break;
-
- case CSSPropertyCursor: {
- // Grammar defined by CSS3 UI and modified by CSS4 images:
- // [ [<image> [<x> <y>]?,]*
- // [ auto | crosshair | default | pointer | progress | move | e-resize | ne-resize |
- // nw-resize | n-resize | se-resize | sw-resize | s-resize | w-resize | ew-resize |
- // ns-resize | nesw-resize | nwse-resize | col-resize | row-resize | text | wait | help |
- // vertical-text | cell | context-menu | alias | copy | no-drop | not-allowed |
- // zoom-in | zoom-out | all-scroll | -webkit-grab | -webkit-grabbing | -webkit-zoom-in |
- // -webkit-zoom-out ] ] | inherit
- RefPtr<CSSValueList> list;
- CSSParserValue* value = &valueWithCalculation.value();
- while (value) {
- RefPtr<CSSValue> image;
- if (value->unit == CSSPrimitiveValue::CSS_URI) {
- String uri = value->string;
- if (!uri.isNull())
- image = CSSImageValue::create(completeURL(uri));
-#if ENABLE(MOUSE_CURSOR_SCALE)
- } else if (isImageSetFunctionValue(*value)) {
- image = parseImageSet();
- if (!image)
- break;
-#endif
- } else
- break;
-
- Vector<int> coords;
- value = m_valueList->next();
- while (value && value->unit == CSSPrimitiveValue::CSS_NUMBER) {
- coords.append(int(value->fValue));
- value = m_valueList->next();
- }
- bool hasHotSpot = false;
- IntPoint hotSpot(-1, -1);
- int nrcoords = coords.size();
- if (nrcoords > 0 && nrcoords != 2)
- return false;
- if (nrcoords == 2) {
- hasHotSpot = true;
- hotSpot = IntPoint(coords[0], coords[1]);
- }
-
- if (!list)
- list = CSSValueList::createCommaSeparated();
-
- if (image)
- list->append(CSSCursorImageValue::create(image.releaseNonNull(), hasHotSpot, hotSpot));
-
- if ((inStrictMode() && !value) || (value && !(value->unit == CSSParserValue::Operator && value->iValue == ',')))
- return false;
- value = m_valueList->next(); // comma
- }
- if (list) {
- if (!value) {
- // no value after url list (MSIE 5 compatibility)
- if (list->length() != 1)
- return false;
- } else if (inQuirksMode() && value->id == CSSValueHand) // MSIE 5 compatibility :/
- list->append(cssValuePool.createIdentifierValue(CSSValuePointer));
- else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitZoomOut) || value->id == CSSValueCopy || value->id == CSSValueNone)
- list->append(cssValuePool.createIdentifierValue(value->id));
- m_valueList->next();
- parsedValue = WTFMove(list);
- break;
- } else if (value) {
- id = value->id;
- if (inQuirksMode() && value->id == CSSValueHand) {
- // MSIE 5 compatibility :/
- id = CSSValuePointer;
- validPrimitive = true;
- } else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitZoomOut) || value->id == CSSValueCopy || value->id == CSSValueNone)
- validPrimitive = true;
- } else {
- ASSERT_NOT_REACHED();
- return false;
- }
- break;
- }
-
-#if ENABLE(CURSOR_VISIBILITY)
- case CSSPropertyWebkitCursorVisibility:
- if (id == CSSValueAuto || id == CSSValueAutoHide)
- validPrimitive = true;
- break;
-#endif
-
- case CSSPropertyBackgroundAttachment:
- case CSSPropertyBackgroundBlendMode:
- case CSSPropertyBackgroundClip:
- case CSSPropertyWebkitBackgroundClip:
- case CSSPropertyWebkitBackgroundComposite:
- case CSSPropertyBackgroundImage:
- case CSSPropertyBackgroundOrigin:
- case CSSPropertyWebkitBackgroundOrigin:
- case CSSPropertyBackgroundPosition:
- case CSSPropertyBackgroundPositionX:
- case CSSPropertyBackgroundPositionY:
- case CSSPropertyBackgroundSize:
- case CSSPropertyWebkitBackgroundSize:
- case CSSPropertyBackgroundRepeat:
- case CSSPropertyBackgroundRepeatX:
- case CSSPropertyBackgroundRepeatY:
- case CSSPropertyWebkitMaskClip:
- case CSSPropertyWebkitMaskComposite:
- case CSSPropertyWebkitMaskImage:
- case CSSPropertyWebkitMaskOrigin:
- case CSSPropertyWebkitMaskPosition:
- case CSSPropertyWebkitMaskPositionX:
- case CSSPropertyWebkitMaskPositionY:
- case CSSPropertyWebkitMaskSize:
- case CSSPropertyWebkitMaskSourceType:
- case CSSPropertyWebkitMaskRepeat:
- case CSSPropertyWebkitMaskRepeatX:
- case CSSPropertyWebkitMaskRepeatY:
- {
- RefPtr<CSSValue> val1;
- RefPtr<CSSValue> val2;
- CSSPropertyID propId1, propId2;
- bool result = false;
- if (parseFillProperty(propId, propId1, propId2, val1, val2)) {
- std::unique_ptr<ShorthandScope> shorthandScope;
- if (propId == CSSPropertyBackgroundPosition ||
- propId == CSSPropertyBackgroundRepeat ||
- propId == CSSPropertyWebkitMaskPosition ||
- propId == CSSPropertyWebkitMaskRepeat) {
- shorthandScope = std::make_unique<ShorthandScope>(this, propId);
- }
- addProperty(propId1, val1.releaseNonNull(), important);
- if (val2)
- addProperty(propId2, val2.releaseNonNull(), important);
- result = true;
- }
- m_implicitShorthand = false;
- return result;
- }
- case CSSPropertyListStyleImage: // <uri> | none | inherit
- case CSSPropertyBorderImageSource:
- case CSSPropertyWebkitMaskBoxImageSource:
- if (id == CSSValueNone) {
- parsedValue = cssValuePool.createIdentifierValue(CSSValueNone);
- m_valueList->next();
- } else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_URI) {
- parsedValue = CSSImageValue::create(completeURL(valueWithCalculation.value().string));
- m_valueList->next();
- } else if (isGeneratedImageValue(valueWithCalculation)) {
- if (parseGeneratedImage(*m_valueList, parsedValue))
- m_valueList->next();
- else
- return false;
- } else if (isImageSetFunctionValue(valueWithCalculation.value())) {
- parsedValue = parseImageSet();
- if (!parsedValue)
- return false;
- m_valueList->next();
- }
- break;
-
- case CSSPropertyWebkitTextStrokeWidth:
- case CSSPropertyOutlineWidth: // <border-width> | inherit
- case CSSPropertyBorderTopWidth: //// <border-width> | inherit
- case CSSPropertyBorderRightWidth: // Which is defined as
- case CSSPropertyBorderBottomWidth: // thin | medium | thick | <length>
- case CSSPropertyBorderLeftWidth:
- case CSSPropertyWebkitBorderStartWidth:
- case CSSPropertyWebkitBorderEndWidth:
- case CSSPropertyWebkitBorderBeforeWidth:
- case CSSPropertyWebkitBorderAfterWidth:
- case CSSPropertyColumnRuleWidth:
- if (id == CSSValueThin || id == CSSValueMedium || id == CSSValueThick)
- validPrimitive = true;
- else
- validPrimitive = validateUnit(valueWithCalculation, FLength | FNonNeg);
- break;
-
- case CSSPropertyLetterSpacing: // normal | <length> | inherit
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = validateUnit(valueWithCalculation, FLength);
- break;
-
- case CSSPropertyWordSpacing: // normal | <length> | <percentage> | inherit
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = validateUnit(valueWithCalculation, FLength | FPercent);
- break;
-
- case CSSPropertyTextIndent:
- parsedValue = parseTextIndent();
- break;
-
- case CSSPropertyPaddingTop: //// <padding-width> | inherit
- case CSSPropertyPaddingRight: // Which is defined as
- case CSSPropertyPaddingBottom: // <length> | <percentage>
- case CSSPropertyPaddingLeft: ////
- case CSSPropertyWebkitPaddingStart:
- case CSSPropertyWebkitPaddingEnd:
- case CSSPropertyWebkitPaddingBefore:
- case CSSPropertyWebkitPaddingAfter:
- validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg));
- break;
-
- case CSSPropertyMaxWidth:
- case CSSPropertyWebkitMaxLogicalWidth:
- case CSSPropertyMaxHeight:
- case CSSPropertyWebkitMaxLogicalHeight:
- validPrimitive = (id == CSSValueNone || isValidSize(valueWithCalculation));
- break;
-
- case CSSPropertyMinWidth:
- case CSSPropertyWebkitMinLogicalWidth:
- case CSSPropertyMinHeight:
- case CSSPropertyWebkitMinLogicalHeight:
- validPrimitive = id == CSSValueAuto || isValidSize(valueWithCalculation);
- break;
-
- case CSSPropertyWidth:
- case CSSPropertyWebkitLogicalWidth:
- case CSSPropertyHeight:
- case CSSPropertyWebkitLogicalHeight:
- validPrimitive = (id == CSSValueAuto || isValidSize(valueWithCalculation));
- break;
-
- case CSSPropertyFontSize:
- return parseFontSize(important);
-
- case CSSPropertyVerticalAlign:
- // baseline | sub | super | top | text-top | middle | bottom | text-bottom |
- // <percentage> | <length> | inherit
-
- if (id >= CSSValueBaseline && id <= CSSValueWebkitBaselineMiddle)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent));
- break;
-
- case CSSPropertyBottom: // <length> | <percentage> | auto | inherit
- case CSSPropertyLeft: // <length> | <percentage> | auto | inherit
- case CSSPropertyRight: // <length> | <percentage> | auto | inherit
- case CSSPropertyTop: // <length> | <percentage> | auto | inherit
- case CSSPropertyMarginTop: //// <margin-width> | inherit
- case CSSPropertyMarginRight: // Which is defined as
- case CSSPropertyMarginBottom: // <length> | <percentage> | auto | inherit
- case CSSPropertyMarginLeft: ////
- case CSSPropertyWebkitMarginStart:
- case CSSPropertyWebkitMarginEnd:
- case CSSPropertyWebkitMarginBefore:
- case CSSPropertyWebkitMarginAfter:
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent));
- break;
-
- case CSSPropertyZIndex: // auto | <integer> | inherit
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FInteger, CSSQuirksMode));
- break;
-
- case CSSPropertyOrphans: // <integer> | inherit | auto (We've added support for auto for backwards compatibility)
- case CSSPropertyWidows: // <integer> | inherit | auto (Ditto)
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FPositiveInteger, CSSQuirksMode));
- break;
-
- case CSSPropertyLineHeight:
- return parseLineHeight(important);
- case CSSPropertyCounterIncrement: // [ <identifier> <integer>? ]+ | none | inherit
- if (id != CSSValueNone)
- return parseCounter(propId, 1, important);
- validPrimitive = true;
- break;
- case CSSPropertyCounterReset: // [ <identifier> <integer>? ]+ | none | inherit
- if (id != CSSValueNone)
- return parseCounter(propId, 0, important);
- validPrimitive = true;
- break;
- case CSSPropertyFontFamily:
- // [[ <family-name> | <generic-family> ],]* [<family-name> | <generic-family>] | inherit
- {
- parsedValue = parseFontFamily();
- break;
- }
-
- case CSSPropertyWebkitTextDecoration:
- // [ <text-decoration-line> || <text-decoration-style> || <text-decoration-color> ] | inherit
- return parseShorthand(CSSPropertyWebkitTextDecoration, webkitTextDecorationShorthand(), important);
-
- case CSSPropertyTextDecoration:
- case CSSPropertyWebkitTextDecorationsInEffect:
- case CSSPropertyWebkitTextDecorationLine:
- // none | [ underline || overline || line-through || blink ] | inherit
- return parseTextDecoration(propId, important);
-
- case CSSPropertyWebkitTextDecorationStyle:
- // solid | double | dotted | dashed | wavy
- if (id == CSSValueSolid || id == CSSValueDouble || id == CSSValueDotted || id == CSSValueDashed || id == CSSValueWavy)
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitTextDecorationSkip:
- // none | [ objects || spaces || ink || edges || box-decoration ]
- return parseTextDecorationSkip(important);
-
- case CSSPropertyWebkitTextUnderlinePosition:
- // auto | alphabetic | under
- return parseTextUnderlinePosition(important);
-
- case CSSPropertyZoom:
- // normal | reset | document | <number> | <percentage> | inherit
- if (id == CSSValueNormal || id == CSSValueReset || id == CSSValueDocument)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FNumber | FPercent | FNonNeg, CSSStrictMode));
- break;
-
- case CSSPropertyWebkitTextZoom:
- // normal | reset
- if (id == CSSValueNormal || id == CSSValueReset)
- validPrimitive = true;
- break;
-
- case CSSPropertySrc: // Only used within @font-face and @-webkit-filter, so cannot use inherit | initial or be !important. This is a list of urls or local references.
- return parseFontFaceSrc();
-
- case CSSPropertyUnicodeRange:
- return parseFontFaceUnicodeRange();
-
- /* CSS3 properties */
-
- case CSSPropertyBorderImage: {
- RefPtr<CSSValue> result;
- return parseBorderImage(propId, result, important);
- }
- case CSSPropertyWebkitBorderImage:
- case CSSPropertyWebkitMaskBoxImage: {
- RefPtr<CSSValue> result;
- if (parseBorderImage(propId, result)) {
- addProperty(propId, WTFMove(result), important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageOutset:
- case CSSPropertyWebkitMaskBoxImageOutset: {
- RefPtr<CSSPrimitiveValue> result;
- if (parseBorderImageOutset(result)) {
- addProperty(propId, WTFMove(result), important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageRepeat:
- case CSSPropertyWebkitMaskBoxImageRepeat: {
- RefPtr<CSSValue> result;
- if (parseBorderImageRepeat(result)) {
- addProperty(propId, WTFMove(result), important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageSlice:
- case CSSPropertyWebkitMaskBoxImageSlice: {
- RefPtr<CSSBorderImageSliceValue> result;
- if (parseBorderImageSlice(propId, result)) {
- addProperty(propId, WTFMove(result), important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageWidth:
- case CSSPropertyWebkitMaskBoxImageWidth: {
- RefPtr<CSSPrimitiveValue> result;
- if (parseBorderImageWidth(result)) {
- addProperty(propId, WTFMove(result), important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderTopRightRadius:
- case CSSPropertyBorderTopLeftRadius:
- case CSSPropertyBorderBottomLeftRadius:
- case CSSPropertyBorderBottomRightRadius: {
- if (num != 1 && num != 2)
- return false;
- validPrimitive = validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg);
- if (!validPrimitive)
- return false;
- auto parsedValue1 = createPrimitiveNumericValue(valueWithCalculation);
- RefPtr<CSSPrimitiveValue> parsedValue2;
- if (num == 2) {
- ValueWithCalculation nextValueWithCalculation(*m_valueList->next());
- validPrimitive = validateUnit(nextValueWithCalculation, FLength | FPercent | FNonNeg);
- if (!validPrimitive)
- return false;
- parsedValue2 = createPrimitiveNumericValue(nextValueWithCalculation);
- } else
- parsedValue2 = parsedValue1.ptr();
-
- addProperty(propId, createPrimitiveValuePair(WTFMove(parsedValue1), parsedValue2.releaseNonNull()), important);
- return true;
- }
- case CSSPropertyTabSize:
- validPrimitive = validateUnit(valueWithCalculation, FInteger | FNonNeg);
- break;
- case CSSPropertyWebkitAspectRatio:
- return parseAspectRatio(important);
- case CSSPropertyBorderRadius:
- case CSSPropertyWebkitBorderRadius:
- return parseBorderRadius(propId, important);
- case CSSPropertyOutlineOffset:
- validPrimitive = validateUnit(valueWithCalculation, FLength);
- break;
- case CSSPropertyTextShadow: // CSS2 property, dropped in CSS2.1, back in CSS3, so treat as CSS3
- case CSSPropertyBoxShadow:
- case CSSPropertyWebkitBoxShadow:
- if (id == CSSValueNone)
- validPrimitive = true;
- else {
- RefPtr<CSSValueList> shadowValueList = parseShadow(*m_valueList, propId);
- if (shadowValueList) {
- addProperty(propId, shadowValueList.releaseNonNull(), important);
- m_valueList->next();
- return true;
- }
- return false;
- }
- break;
- case CSSPropertyWebkitInitialLetter: {
- if (id == CSSValueNormal)
- validPrimitive = true;
- else {
- if (num != 1 && num != 2)
- return false;
- validPrimitive = validateUnit(valueWithCalculation, FPositiveInteger);
- if (!validPrimitive)
- return false;
- auto height = createPrimitiveNumericValue(valueWithCalculation);
- RefPtr<CSSPrimitiveValue> position;
- if (num == 2) {
- ValueWithCalculation nextValueWithCalculation(*m_valueList->next());
- validPrimitive = validateUnit(nextValueWithCalculation, FPositiveInteger);
- if (!validPrimitive)
- return false;
- position = createPrimitiveNumericValue(nextValueWithCalculation);
- } else
- position = height.ptr();
- addProperty(propId, createPrimitiveValuePair(position.releaseNonNull(), WTFMove(height)), important);
- return true;
- }
- break;
- }
- case CSSPropertyWebkitBoxReflect:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- return parseReflect(propId, important);
- break;
- case CSSPropertyOpacity:
- validPrimitive = validateUnit(valueWithCalculation, FNumber);
- break;
- case CSSPropertyWebkitBoxFlex:
- validPrimitive = validateUnit(valueWithCalculation, FNumber);
- break;
- case CSSPropertyWebkitBoxFlexGroup:
- validPrimitive = validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSStrictMode);
- break;
- case CSSPropertyWebkitBoxOrdinalGroup:
- validPrimitive = validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSStrictMode) && valueWithCalculation.value().fValue;
- break;
- case CSSPropertyFilter:
-#if ENABLE(FILTERS_LEVEL_2)
- case CSSPropertyWebkitBackdropFilter:
-#endif
- if (id == CSSValueNone)
- validPrimitive = true;
- else {
- RefPtr<CSSValueList> currValue;
- if (!parseFilter(*m_valueList, currValue))
- return false;
- addProperty(propId, WTFMove(currValue), important);
- return true;
- }
- break;
-#if ENABLE(CSS_COMPOSITING)
- case CSSPropertyMixBlendMode:
- validPrimitive = true;
- break;
- case CSSPropertyIsolation:
- validPrimitive = true;
- break;
-#endif
- case CSSPropertyFlex: {
- ShorthandScope scope(this, propId);
- if (id == CSSValueNone) {
- addProperty(CSSPropertyFlexGrow, cssValuePool.createValue(0, CSSPrimitiveValue::CSS_NUMBER), important);
- addProperty(CSSPropertyFlexShrink, cssValuePool.createValue(0, CSSPrimitiveValue::CSS_NUMBER), important);
- addProperty(CSSPropertyFlexBasis, cssValuePool.createIdentifierValue(CSSValueAuto), important);
- return true;
- }
- return parseFlex(*m_valueList, important);
- }
- case CSSPropertyFlexBasis:
- // FIXME: Support intrinsic dimensions too.
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg));
- break;
- case CSSPropertyFlexGrow:
- case CSSPropertyFlexShrink:
- validPrimitive = validateUnit(valueWithCalculation, FNumber | FNonNeg);
- break;
- case CSSPropertyOrder:
- if (validateUnit(valueWithCalculation, FInteger, CSSStrictMode)) {
- // We restrict the smallest value to int min + 2 because we use int min and int min + 1 as special values in a hash set.
- double result = std::max<double>(std::numeric_limits<int>::min() + 2, parsedDouble(valueWithCalculation));
- parsedValue = cssValuePool.createValue(result, CSSPrimitiveValue::CSS_NUMBER);
- m_valueList->next();
- }
- break;
- case CSSPropertyWebkitMarquee:
- return parseShorthand(propId, webkitMarqueeShorthand(), important);
- case CSSPropertyWebkitMarqueeIncrement:
- if (id == CSSValueSmall || id == CSSValueLarge || id == CSSValueMedium)
- validPrimitive = true;
- else
- validPrimitive = validateUnit(valueWithCalculation, FLength | FPercent);
- break;
- case CSSPropertyWebkitMarqueeRepetition:
- if (id == CSSValueInfinite)
- validPrimitive = true;
- else
- validPrimitive = validateUnit(valueWithCalculation, FInteger | FNonNeg);
- break;
- case CSSPropertyWebkitMarqueeSpeed:
- if (id == CSSValueNormal || id == CSSValueSlow || id == CSSValueFast)
- validPrimitive = true;
- else
- validPrimitive = validateUnit(valueWithCalculation, FTime | FInteger | FNonNeg);
- break;
-#if ENABLE(CSS_REGIONS)
- case CSSPropertyWebkitFlowInto:
- return parseFlowThread(propId, important);
- case CSSPropertyWebkitFlowFrom:
- return parseRegionThread(propId, important);
-#endif
- case CSSPropertyTransform:
- if (id == CSSValueNone)
- validPrimitive = true;
- else {
- if (RefPtr<CSSValue> transformValue = parseTransform()) {
- addProperty(propId, transformValue.releaseNonNull(), important);
- return true;
- }
- return false;
- }
- break;
- case CSSPropertyTransformOrigin:
- case CSSPropertyTransformOriginX:
- case CSSPropertyTransformOriginY:
- case CSSPropertyTransformOriginZ: {
- RefPtr<CSSPrimitiveValue> val1;
- RefPtr<CSSPrimitiveValue> val2;
- RefPtr<CSSValue> val3;
- CSSPropertyID propId1, propId2, propId3;
- if (parseTransformOrigin(propId, propId1, propId2, propId3, val1, val2, val3)) {
- addProperty(propId1, WTFMove(val1), important);
- if (val2)
- addProperty(propId2, WTFMove(val2), important);
- if (val3)
- addProperty(propId3, WTFMove(val3), important);
- return true;
- }
- return false;
- }
- case CSSPropertyPerspective:
- if (id == CSSValueNone)
- validPrimitive = true;
- else {
- // Accepting valueless numbers is a quirk of the -webkit prefixed version of the property.
- if (validateUnit(valueWithCalculation, FNumber | FLength | FNonNeg)) {
- addProperty(propId, createPrimitiveNumericValue(valueWithCalculation), important);
- return true;
- }
- }
- break;
- case CSSPropertyPerspectiveOrigin:
- case CSSPropertyPerspectiveOriginX:
- case CSSPropertyPerspectiveOriginY: {
- RefPtr<CSSPrimitiveValue> val1;
- RefPtr<CSSPrimitiveValue> val2;
- CSSPropertyID propId1, propId2;
- if (parsePerspectiveOrigin(propId, propId1, propId2, val1, val2)) {
- addProperty(propId1, WTFMove(val1), important);
- if (val2)
- addProperty(propId2, WTFMove(val2), important);
- return true;
- }
- return false;
- }
- case CSSPropertyAnimationDelay:
- case CSSPropertyAnimationDirection:
- case CSSPropertyAnimationDuration:
- case CSSPropertyAnimationFillMode:
- case CSSPropertyAnimationName:
- case CSSPropertyAnimationPlayState:
- case CSSPropertyAnimationIterationCount:
- case CSSPropertyAnimationTimingFunction:
- case CSSPropertyWebkitAnimationDelay:
- case CSSPropertyWebkitAnimationDirection:
- case CSSPropertyWebkitAnimationDuration:
- case CSSPropertyWebkitAnimationFillMode:
- case CSSPropertyWebkitAnimationName:
- case CSSPropertyWebkitAnimationPlayState:
- case CSSPropertyWebkitAnimationIterationCount:
- case CSSPropertyWebkitAnimationTimingFunction:
-#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
- case CSSPropertyWebkitAnimationTrigger:
-#endif
- case CSSPropertyTransitionDelay:
- case CSSPropertyTransitionDuration:
- case CSSPropertyTransitionTimingFunction:
- case CSSPropertyTransitionProperty:
- case CSSPropertyWebkitTransitionDelay:
- case CSSPropertyWebkitTransitionDuration:
- case CSSPropertyWebkitTransitionTimingFunction:
- case CSSPropertyWebkitTransitionProperty: {
- RefPtr<CSSValue> val;
- AnimationParseContext context;
- if (parseAnimationProperty(propId, val, context)) {
- addProperty(propId, WTFMove(val), important);
- return true;
- }
- return false;
- }
- case CSSPropertyJustifyContent:
- parsedValue = parseContentDistributionOverflowPosition();
- break;
- case CSSPropertyJustifySelf:
- return parseItemPositionOverflowPosition(propId, important);
- case CSSPropertyJustifyItems:
- if (parseLegacyPosition(propId, important))
- return true;
- m_valueList->setCurrentIndex(0);
- return parseItemPositionOverflowPosition(propId, important);
-#if ENABLE(CSS_GRID_LAYOUT)
- case CSSPropertyGridAutoColumns:
- case CSSPropertyGridAutoRows:
- if (!isCSSGridLayoutEnabled())
- return false;
- parsedValue = parseGridTrackList(GridAuto);
- break;
-
- case CSSPropertyGridTemplateColumns:
- case CSSPropertyGridTemplateRows:
- if (!isCSSGridLayoutEnabled())
- return false;
- parsedValue = parseGridTrackList(GridTemplate);
- break;
-
- case CSSPropertyGridColumnStart:
- case CSSPropertyGridColumnEnd:
- case CSSPropertyGridRowStart:
- case CSSPropertyGridRowEnd:
- if (!isCSSGridLayoutEnabled())
- return false;
- parsedValue = parseGridPosition();
- break;
-
- case CSSPropertyGridColumnGap:
- case CSSPropertyGridRowGap:
- if (!isCSSGridLayoutEnabled())
- return false;
- validPrimitive = validateUnit(valueWithCalculation, FLength | FNonNeg);
- break;
-
- case CSSPropertyGridGap:
- if (!isCSSGridLayoutEnabled())
- return false;
- return parseGridGapShorthand(important);
-
- case CSSPropertyGridColumn:
- case CSSPropertyGridRow:
- if (!isCSSGridLayoutEnabled())
- return false;
- return parseGridItemPositionShorthand(propId, important);
-
- case CSSPropertyGridTemplate:
- if (!isCSSGridLayoutEnabled())
- return false;
- return parseGridTemplateShorthand(important);
-
- case CSSPropertyGrid:
- if (!isCSSGridLayoutEnabled())
- return false;
- return parseGridShorthand(important);
-
- case CSSPropertyGridArea:
- if (!isCSSGridLayoutEnabled())
- return false;
- return parseGridAreaShorthand(important);
-
- case CSSPropertyGridTemplateAreas:
- if (!isCSSGridLayoutEnabled())
- return false;
- parsedValue = parseGridTemplateAreas();
- break;
- case CSSPropertyGridAutoFlow:
- if (!isCSSGridLayoutEnabled())
- return false;
- parsedValue = parseGridAutoFlow(*m_valueList);
- break;
-#endif /* ENABLE(CSS_GRID_LAYOUT) */
- case CSSPropertyWebkitMarginCollapse: {
- if (num == 1) {
- ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse);
- if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important))
- return false;
- CSSValue* value = m_parsedProperties.last().value();
- addProperty(webkitMarginCollapseShorthand().properties()[1], value, important);
- return true;
- }
- else if (num == 2) {
- ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse);
- if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important) || !parseValue(webkitMarginCollapseShorthand().properties()[1], important))
- return false;
- return true;
- }
- return false;
- }
- case CSSPropertyTextLineThroughWidth:
- case CSSPropertyTextOverlineWidth:
- case CSSPropertyTextUnderlineWidth:
- if (id == CSSValueAuto || id == CSSValueNormal || id == CSSValueThin ||
- id == CSSValueMedium || id == CSSValueThick)
- validPrimitive = true;
- else
- validPrimitive = !id && validateUnit(valueWithCalculation, FNumber | FLength | FPercent);
- break;
- case CSSPropertyColumnCount:
- parsedValue = parseColumnCount();
- break;
- case CSSPropertyColumnGap: // normal | <length>
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = validateUnit(valueWithCalculation, FLength | FNonNeg);
- break;
- case CSSPropertyWebkitColumnAxis:
- if (id == CSSValueHorizontal || id == CSSValueVertical || id == CSSValueAuto)
- validPrimitive = true;
- break;
- case CSSPropertyColumnProgression:
- if (id == CSSValueNormal || id == CSSValueReverse)
- validPrimitive = true;
- break;
- case CSSPropertyColumnSpan: // none | all | 1 (will be dropped in the unprefixed property)
- if (id == CSSValueAll || id == CSSValueNone)
- validPrimitive = true;
- else if (validateUnit(valueWithCalculation, FNumber | FNonNeg) && parsedDouble(valueWithCalculation) == 1) {
- addProperty(CSSPropertyColumnSpan, cssValuePool.createValue(1, CSSPrimitiveValue::CSS_NUMBER), important);
- return true;
- }
- break;
- case CSSPropertyColumnWidth: // auto | <length>
- parsedValue = parseColumnWidth();
- break;
- case CSSPropertyObjectPosition: {
- RefPtr<CSSPrimitiveValue> val1;
- RefPtr<CSSPrimitiveValue> val2;
- parseFillPosition(*m_valueList, val1, val2);
- if (val1) {
- addProperty(CSSPropertyObjectPosition, createPrimitiveValuePair(val1.releaseNonNull(), WTFMove(val2)), important);
- return true;
- }
- return false;
- }
- // End of CSS3 properties
-
- case CSSPropertyWillChange: // auto | [scroll-position | contents | <custom-ident>]#
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- return parseWillChange(important);
- break;
-
- // Apple specific properties. These will never be standardized and are purely to
- // support custom WebKit-based Apple applications.
- case CSSPropertyWebkitLineClamp:
- // When specifying number of lines, don't allow 0 as a valid value
- // When specifying either type of unit, require non-negative integers
- validPrimitive = (!id && (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_PERCENTAGE || valueWithCalculation.value().fValue) && validateUnit(valueWithCalculation, FInteger | FPercent | FNonNeg, CSSQuirksMode));
- break;
-#if ENABLE(IOS_TEXT_AUTOSIZING)
- case CSSPropertyWebkitTextSizeAdjust:
- if (!isTextAutosizingEnabled())
- return false;
-
- if (id == CSSValueAuto || id == CSSValueNone)
- validPrimitive = true;
- else {
- // FIXME: Handle multilength case where we allow relative units.
- validPrimitive = (!id && validateUnit(valueWithCalculation, FPercent | FNonNeg, CSSStrictMode));
- }
- break;
-#endif
-
- case CSSPropertyWebkitFontSizeDelta: // <length>
- validPrimitive = validateUnit(valueWithCalculation, FLength);
- break;
-
- case CSSPropertyWebkitHyphenateCharacter:
- if (id == CSSValueAuto || valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_STRING)
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitHyphenateLimitBefore:
- case CSSPropertyWebkitHyphenateLimitAfter:
- if (id == CSSValueAuto || validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSStrictMode))
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitHyphenateLimitLines:
- if (id == CSSValueNoLimit || validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSStrictMode))
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitLineGrid:
- if (id == CSSValueNone)
- validPrimitive = true;
- else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_IDENT) {
- String lineGridValue = String(valueWithCalculation.value().string);
- if (!lineGridValue.isEmpty()) {
- addProperty(propId, cssValuePool.createValue(lineGridValue, CSSPrimitiveValue::CSS_STRING), important);
- return true;
- }
- }
- break;
- case CSSPropertyWebkitLocale:
- if (id == CSSValueAuto || valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_STRING)
- validPrimitive = true;
- break;
-
-#if ENABLE(DASHBOARD_SUPPORT)
- case CSSPropertyWebkitDashboardRegion: // <dashboard-region> | <dashboard-region>
- if (valueWithCalculation.value().unit == CSSParserValue::Function || id == CSSValueNone)
- return parseDashboardRegions(propId, important);
- break;
-#endif
-
-#if PLATFORM(IOS)
- case CSSPropertyWebkitTouchCallout:
- if (id == CSSValueDefault || id == CSSValueNone)
- validPrimitive = true;
- break;
-#endif
-#if ENABLE(TOUCH_EVENTS)
- case CSSPropertyWebkitTapHighlightColor:
- if (isValidSystemColorValue(id) || id == CSSValueMenu
- || (id >= CSSValueWebkitFocusRingColor && id < CSSValueWebkitText && inQuirksMode())) {
- validPrimitive = true;
- } else {
- parsedValue = parseColor();
- if (parsedValue)
- m_valueList->next();
- }
- break;
-#endif
- // End Apple-specific properties
-
- /* shorthand properties */
- case CSSPropertyBackground: {
- // Position must come before color in this array because a plain old "0" is a legal color
- // in quirks mode but it's usually the X coordinate of a position.
- const CSSPropertyID properties[] = { CSSPropertyBackgroundImage, CSSPropertyBackgroundRepeat,
- CSSPropertyBackgroundAttachment, CSSPropertyBackgroundPosition, CSSPropertyBackgroundOrigin,
- CSSPropertyBackgroundClip, CSSPropertyBackgroundColor, CSSPropertyBackgroundSize };
- return parseFillShorthand(propId, properties, WTF_ARRAY_LENGTH(properties), important);
- }
- case CSSPropertyWebkitMask: {
- const CSSPropertyID properties[] = { CSSPropertyWebkitMaskImage, CSSPropertyWebkitMaskSourceType, CSSPropertyWebkitMaskRepeat,
- CSSPropertyWebkitMaskPosition, CSSPropertyWebkitMaskOrigin, CSSPropertyWebkitMaskClip, CSSPropertyWebkitMaskSize };
- return parseFillShorthand(propId, properties, WTF_ARRAY_LENGTH(properties), important);
- }
- case CSSPropertyBorder:
- // [ 'border-width' || 'border-style' || <color> ] | inherit
- {
- if (parseShorthand(propId, borderAbridgedShorthand(), important)) {
- // The CSS3 Borders and Backgrounds specification says that border also resets border-image. It's as
- // though a value of none was specified for the image.
- addExpandedPropertyForValue(CSSPropertyBorderImage, cssValuePool.createImplicitInitialValue(), important);
- return true;
- }
- return false;
- }
- case CSSPropertyBorderTop:
- // [ 'border-top-width' || 'border-style' || <color> ] | inherit
- return parseShorthand(propId, borderTopShorthand(), important);
- case CSSPropertyBorderRight:
- // [ 'border-right-width' || 'border-style' || <color> ] | inherit
- return parseShorthand(propId, borderRightShorthand(), important);
- case CSSPropertyBorderBottom:
- // [ 'border-bottom-width' || 'border-style' || <color> ] | inherit
- return parseShorthand(propId, borderBottomShorthand(), important);
- case CSSPropertyBorderLeft:
- // [ 'border-left-width' || 'border-style' || <color> ] | inherit
- return parseShorthand(propId, borderLeftShorthand(), important);
- case CSSPropertyWebkitBorderStart:
- return parseShorthand(propId, webkitBorderStartShorthand(), important);
- case CSSPropertyWebkitBorderEnd:
- return parseShorthand(propId, webkitBorderEndShorthand(), important);
- case CSSPropertyWebkitBorderBefore:
- return parseShorthand(propId, webkitBorderBeforeShorthand(), important);
- case CSSPropertyWebkitBorderAfter:
- return parseShorthand(propId, webkitBorderAfterShorthand(), important);
- case CSSPropertyOutline:
- // [ 'outline-color' || 'outline-style' || 'outline-width' ] | inherit
- return parseShorthand(propId, outlineShorthand(), important);
- case CSSPropertyBorderColor:
- // <color>{1,4} | inherit
- return parse4Values(propId, borderColorShorthand().properties(), important);
- case CSSPropertyBorderWidth:
- // <border-width>{1,4} | inherit
- return parse4Values(propId, borderWidthShorthand().properties(), important);
- case CSSPropertyBorderStyle:
- // <border-style>{1,4} | inherit
- return parse4Values(propId, borderStyleShorthand().properties(), important);
- case CSSPropertyMargin:
- // <margin-width>{1,4} | inherit
- return parse4Values(propId, marginShorthand().properties(), important);
- case CSSPropertyPadding:
- // <padding-width>{1,4} | inherit
- return parse4Values(propId, paddingShorthand().properties(), important);
- case CSSPropertyFlexFlow:
- return parseShorthand(propId, flexFlowShorthand(), important);
- case CSSPropertyFont:
- // [ [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]?
- // 'font-family' ] | caption | icon | menu | message-box | small-caption | status-bar | inherit
- if (num == 1 && id >= CSSValueCaption && id <= CSSValueStatusBar) {
- parseSystemFont(important);
- return true;
- }
- return parseFont(important);
- case CSSPropertyListStyle:
- return parseShorthand(propId, listStyleShorthand(), important);
- case CSSPropertyColumns:
- return parseColumnsShorthand(important);
- case CSSPropertyColumnRule:
- return parseShorthand(propId, columnRuleShorthand(), important);
- case CSSPropertyWebkitTextStroke:
- return parseShorthand(propId, webkitTextStrokeShorthand(), important);
- case CSSPropertyAnimation:
- case CSSPropertyWebkitAnimation:
- return parseAnimationShorthand(propId, important);
- case CSSPropertyTransition:
- case CSSPropertyWebkitTransition:
- return parseTransitionShorthand(propId, important);
- case CSSPropertyInvalid:
- return false;
- case CSSPropertyPage:
- return parsePage(propId, important);
- case CSSPropertyFontStretch:
- case CSSPropertyTextLineThrough:
- case CSSPropertyTextOverline:
- case CSSPropertyTextUnderline:
- return false;
- // CSS Text Layout Module Level 3: Vertical writing support
- case CSSPropertyWebkitTextEmphasis:
- return parseShorthand(propId, webkitTextEmphasisShorthand(), important);
-
- case CSSPropertyWebkitTextEmphasisStyle:
- return parseTextEmphasisStyle(important);
-
- case CSSPropertyWebkitTextEmphasisPosition:
- return parseTextEmphasisPosition(important);
-
- case CSSPropertyWebkitTextOrientation:
- if (id == CSSValueSideways || id == CSSValueSidewaysRight || id == CSSValueVerticalRight || id == CSSValueMixed || id == CSSValueUpright)
- validPrimitive = true;
- break;
-
- case CSSPropertyHangingPunctuation:
- return parseHangingPunctuation(important);
- case CSSPropertyWebkitLineBoxContain:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- return parseLineBoxContain(important);
- break;
- case CSSPropertyFontFeatureSettings:
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- return parseFontFeatureSettings(important);
- break;
- case CSSPropertyFontVariantLigatures:
- if (id == CSSValueNormal || id == CSSValueNone)
- validPrimitive = true;
- else
- return parseFontVariantLigatures(important, true, false);
- break;
- case CSSPropertyFontVariantNumeric:
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- return parseFontVariantNumeric(important, true, false);
- break;
- case CSSPropertyFontVariantEastAsian:
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- return parseFontVariantEastAsian(important, true, false);
- break;
- case CSSPropertyFontVariant:
- if (id == CSSValueNormal) {
- ShorthandScope scope(this, CSSPropertyFontVariant);
- addProperty(CSSPropertyFontVariantLigatures, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
- addProperty(CSSPropertyFontVariantPosition, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
- addProperty(CSSPropertyFontVariantNumeric, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
- addProperty(CSSPropertyFontVariantAlternates, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
- addProperty(CSSPropertyFontVariantEastAsian, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
- return true;
- }
- if (id == CSSValueNone) {
- ShorthandScope scope(this, CSSPropertyFontVariant);
- addProperty(CSSPropertyFontVariantLigatures, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important, true);
- return true;
- }
- return parseFontVariant(important);
-
- case CSSPropertyWebkitClipPath:
- parsedValue = parseClipPath();
- break;
-#if ENABLE(CSS_SHAPES)
- case CSSPropertyWebkitShapeOutside:
- parsedValue = parseShapeProperty(propId);
- break;
- case CSSPropertyWebkitShapeMargin:
- validPrimitive = !id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg);
- break;
- case CSSPropertyWebkitShapeImageThreshold:
- validPrimitive = !id && validateUnit(valueWithCalculation, FNumber);
- break;
-#endif
-#if ENABLE(CSS_IMAGE_ORIENTATION)
- case CSSPropertyImageOrientation:
- validPrimitive = !id && validateUnit(valueWithCalculation, FAngle);
- break;
-#endif
-#if ENABLE(CSS_IMAGE_RESOLUTION)
- case CSSPropertyImageResolution:
- parsedValue = parseImageResolution();
- break;
-#endif
- case CSSPropertyAlignContent:
- parsedValue = parseContentDistributionOverflowPosition();
- break;
- case CSSPropertyAlignSelf:
- return parseItemPositionOverflowPosition(propId, important);
-
- case CSSPropertyAlignItems:
- return parseItemPositionOverflowPosition(propId, important);
- case CSSPropertyBorderBottomStyle:
- case CSSPropertyBorderCollapse:
- case CSSPropertyBorderLeftStyle:
- case CSSPropertyBorderRightStyle:
- case CSSPropertyBorderTopStyle:
- case CSSPropertyBoxSizing:
- case CSSPropertyBreakAfter:
- case CSSPropertyBreakBefore:
- case CSSPropertyBreakInside:
- case CSSPropertyCaptionSide:
- case CSSPropertyClear:
- case CSSPropertyDirection:
- case CSSPropertyDisplay:
- case CSSPropertyEmptyCells:
- case CSSPropertyFloat:
- case CSSPropertyFontStyle:
- case CSSPropertyImageRendering:
- case CSSPropertyListStylePosition:
- case CSSPropertyListStyleType:
- case CSSPropertyObjectFit:
- case CSSPropertyOutlineStyle:
- case CSSPropertyOverflowWrap:
- case CSSPropertyOverflowX:
- case CSSPropertyOverflowY:
- case CSSPropertyPageBreakAfter:
- case CSSPropertyPageBreakBefore:
- case CSSPropertyPageBreakInside:
- case CSSPropertyPointerEvents:
- case CSSPropertyPosition:
- case CSSPropertyResize:
- case CSSPropertySpeak:
- case CSSPropertyTableLayout:
- case CSSPropertyTextLineThroughMode:
- case CSSPropertyTextLineThroughStyle:
- case CSSPropertyTextOverflow:
- case CSSPropertyTextOverlineMode:
- case CSSPropertyTextOverlineStyle:
- case CSSPropertyTextRendering:
- case CSSPropertyTextTransform:
- case CSSPropertyTextUnderlineMode:
- case CSSPropertyTextUnderlineStyle:
- case CSSPropertyVisibility:
- case CSSPropertyWebkitAppearance:
- case CSSPropertyWebkitBackfaceVisibility:
- case CSSPropertyWebkitBorderAfterStyle:
- case CSSPropertyWebkitBorderBeforeStyle:
- case CSSPropertyWebkitBorderEndStyle:
- case CSSPropertyWebkitBorderFit:
- case CSSPropertyWebkitBorderStartStyle:
- case CSSPropertyWebkitBoxAlign:
-#if ENABLE(CSS_BOX_DECORATION_BREAK)
- case CSSPropertyWebkitBoxDecorationBreak:
-#endif
- case CSSPropertyWebkitBoxDirection:
- case CSSPropertyWebkitBoxLines:
- case CSSPropertyWebkitBoxOrient:
- case CSSPropertyWebkitBoxPack:
- case CSSPropertyWebkitColumnBreakAfter:
- case CSSPropertyWebkitColumnBreakBefore:
- case CSSPropertyWebkitColumnBreakInside:
- case CSSPropertyColumnFill:
- case CSSPropertyColumnRuleStyle:
- case CSSPropertyFlexDirection:
- case CSSPropertyFlexWrap:
- case CSSPropertyWebkitFontKerning:
- case CSSPropertyWebkitFontSmoothing:
- case CSSPropertyWebkitHyphens:
- case CSSPropertyWebkitLineAlign:
- case CSSPropertyWebkitLineBreak:
- case CSSPropertyWebkitLineSnap:
- case CSSPropertyWebkitMarginAfterCollapse:
- case CSSPropertyWebkitMarginBeforeCollapse:
- case CSSPropertyWebkitMarginBottomCollapse:
- case CSSPropertyWebkitMarginTopCollapse:
- case CSSPropertyWebkitMarqueeDirection:
- case CSSPropertyWebkitMarqueeStyle:
- case CSSPropertyWebkitNbspMode:
-#if ENABLE(ACCELERATED_OVERFLOW_SCROLLING)
- case CSSPropertyWebkitOverflowScrolling:
-#endif
- case CSSPropertyWebkitPrintColorAdjust:
-#if ENABLE(CSS_REGIONS)
- case CSSPropertyWebkitRegionBreakAfter:
- case CSSPropertyWebkitRegionBreakBefore:
- case CSSPropertyWebkitRegionBreakInside:
- case CSSPropertyWebkitRegionFragment:
-#endif
- case CSSPropertyWebkitRtlOrdering:
- case CSSPropertyWebkitRubyPosition:
-#if ENABLE(CSS3_TEXT)
- case CSSPropertyWebkitTextAlignLast:
-#endif // CSS3_TEXT
- case CSSPropertyWebkitTextCombine:
-#if ENABLE(CSS3_TEXT)
- case CSSPropertyWebkitTextJustify:
-#endif // CSS3_TEXT
- case CSSPropertyWebkitTextSecurity:
- case CSSPropertyTransformStyle:
- case CSSPropertyWebkitTransformStyle:
- case CSSPropertyWebkitUserDrag:
- case CSSPropertyWebkitUserModify:
- case CSSPropertyWebkitUserSelect:
- case CSSPropertyWebkitWritingMode:
- case CSSPropertyWhiteSpace:
- case CSSPropertyWordBreak:
- case CSSPropertyWordWrap:
-#if ENABLE(TOUCH_EVENTS)
- case CSSPropertyTouchAction:
-#endif
-#if ENABLE(CSS_SCROLL_SNAP)
- case CSSPropertyWebkitScrollSnapType:
-#endif
-#if ENABLE(CSS_TRAILING_WORD)
- case CSSPropertyAppleTrailingWord:
-#endif
- // These properties should be handled before in isValidKeywordPropertyAndValue().
- ASSERT_NOT_REACHED();
- return false;
-#if ENABLE(CSS_DEVICE_ADAPTATION)
- // Properties bellow are validated inside parseViewportProperty, because we
- // check for parser state inViewportScope. We need to invalidate if someone
- // adds them outside a @viewport rule.
- case CSSPropertyMaxZoom:
- case CSSPropertyMinZoom:
- case CSSPropertyOrientation:
- case CSSPropertyUserZoom:
- validPrimitive = false;
- break;
-#endif
-#if ENABLE(CSS_SCROLL_SNAP)
- case CSSPropertyWebkitScrollSnapPointsX:
- case CSSPropertyWebkitScrollSnapPointsY:
- if (id == CSSValueElements) {
- validPrimitive = true;
- break;
- }
- return parseNonElementSnapPoints(propId, important);
- case CSSPropertyWebkitScrollSnapDestination: // <length>{2}
- return parseScrollSnapDestination(propId, important);
- case CSSPropertyWebkitScrollSnapCoordinate:
- return parseScrollSnapCoordinate(propId, important);
-#endif
-
- default:
- return parseSVGValue(propId, important);
- }
-
- if (validPrimitive) {
- parsedValue = parseValidPrimitive(id, valueWithCalculation);
- m_valueList->next();
- }
-
- if (parsedValue && (!m_valueList->current() || inShorthand())) {
- addProperty(propId, parsedValue.releaseNonNull(), important);
- return true;
- }
- return false;
-}
-
-void CSSParser::addFillValue(RefPtr<CSSValue>& lval, Ref<CSSValue>&& rval)
-{
- if (!lval) {
- lval = WTFMove(rval);
- return;
- }
-
- if (lval->isBaseValueList()) {
- downcast<CSSValueList>(*lval).append(WTFMove(rval));
- return;
- }
-
- auto list = CSSValueList::createCommaSeparated();
- list.get().append(lval.releaseNonNull());
- list.get().append(WTFMove(rval));
- lval = WTFMove(list);
-}
-
-static bool isContentDistributionKeyword(CSSValueID id)
-{
- return id == CSSValueSpaceBetween || id == CSSValueSpaceAround
- || id == CSSValueSpaceEvenly || id == CSSValueStretch;
-}
-
-static bool isContentPositionKeyword(CSSValueID id)
-{
- return id == CSSValueStart || id == CSSValueEnd || id == CSSValueCenter
- || id == CSSValueFlexStart || id == CSSValueFlexEnd
- || id == CSSValueLeft || id == CSSValueRight;
-}
-
-static inline bool isBaselinePositionKeyword(CSSValueID id)
-{
- return id == CSSValueBaseline || id == CSSValueLastBaseline;
-}
-
-static bool isAlignmentOverflowKeyword(CSSValueID id)
-{
- return id == CSSValueUnsafe || id == CSSValueSafe;
-}
-
-static bool isItemPositionKeyword(CSSValueID id)
-{
- return id == CSSValueStart || id == CSSValueEnd || id == CSSValueCenter
- || id == CSSValueSelfStart || id == CSSValueSelfEnd || id == CSSValueFlexStart
- || id == CSSValueFlexEnd || id == CSSValueLeft || id == CSSValueRight;
-}
-
-bool CSSParser::parseLegacyPosition(CSSPropertyID propId, bool important)
-{
- // [ legacy && [ left | right | center ]
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- if (value->id == CSSValueLegacy) {
- value = m_valueList->next();
- if (!value)
- return false;
- if (value->id != CSSValueCenter && value->id != CSSValueLeft && value->id != CSSValueRight)
- return false;
- } else if (value->id == CSSValueCenter || value->id == CSSValueLeft || value->id == CSSValueRight) {
- if (!m_valueList->next() || m_valueList->current()->id != CSSValueLegacy)
- return false;
- } else
- return false;
-
- auto& cssValuePool = CSSValuePool::singleton();
- addProperty(propId, createPrimitiveValuePair(cssValuePool.createIdentifierValue(CSSValueLegacy), cssValuePool.createIdentifierValue(value->id)), important);
- return !m_valueList->next();
-}
-
-RefPtr<CSSContentDistributionValue> CSSParser::parseContentDistributionOverflowPosition()
-{
- // normal | <baseline-position> | <content-distribution> || [ <overflow-position>? && <content-position> ]
- // <baseline-position> = baseline | last-baseline;
- // <content-distribution> = space-between | space-around | space-evenly | stretch;
- // <content-position> = center | start | end | flex-start | flex-end | left | right;
- // <overflow-position> = unsafe | safe
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return nullptr;
-
- // auto | <baseline-position>
- if (value->id == CSSValueNormal || isBaselinePositionKeyword(value->id)) {
- m_valueList->next();
- return CSSContentDistributionValue::create(CSSValueInvalid, value->id, CSSValueInvalid);
- }
-
- CSSValueID distribution = CSSValueInvalid;
- CSSValueID position = CSSValueInvalid;
- CSSValueID overflow = CSSValueInvalid;
- while (value) {
- if (isContentDistributionKeyword(value->id)) {
- if (distribution != CSSValueInvalid)
- return nullptr;
- distribution = value->id;
- } else if (isContentPositionKeyword(value->id)) {
- if (position != CSSValueInvalid)
- return nullptr;
- position = value->id;
- } else if (isAlignmentOverflowKeyword(value->id)) {
- if (overflow != CSSValueInvalid)
- return nullptr;
- overflow = value->id;
- } else
- return nullptr;
- value = m_valueList->next();
- }
-
- // The grammar states that we should have at least <content-distribution> or
- // <content-position> ( <content-distribution> || <content-position> ).
- if (position == CSSValueInvalid && distribution == CSSValueInvalid)
- return nullptr;
-
- // The grammar states that <overflow-position> must be associated to <content-position>.
- if (overflow != CSSValueInvalid && position == CSSValueInvalid)
- return nullptr;
-
- return CSSContentDistributionValue::create(distribution, position, overflow);
-}
-
-bool CSSParser::parseItemPositionOverflowPosition(CSSPropertyID propId, bool important)
-{
- // auto | normal | stretch | <baseline-position> | [<item-position> && <overflow-position>? ]
- // <baseline-position> = baseline | last-baseline;
- // <item-position> = center | start | end | self-start | self-end | flex-start | flex-end | left | right;
- // <overflow-position> = unsafe | safe
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- if (value->id == CSSValueAuto || value->id == CSSValueNormal || value->id == CSSValueStretch || isBaselinePositionKeyword(value->id)) {
- // align-items property does not allow the 'auto' value.
- if (value->id == CSSValueAuto && propId == CSSPropertyAlignItems)
- return false;
- if (m_valueList->next())
- return false;
-
- addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
- return true;
- }
-
- RefPtr<CSSPrimitiveValue> position;
- RefPtr<CSSPrimitiveValue> overflowAlignmentKeyword;
- if (isItemPositionKeyword(value->id)) {
- position = CSSValuePool::singleton().createIdentifierValue(value->id);
- value = m_valueList->next();
- if (value) {
- if (value->id != CSSValueUnsafe && value->id != CSSValueSafe)
- return false;
- overflowAlignmentKeyword = CSSValuePool::singleton().createIdentifierValue(value->id);
- }
- } else if (isAlignmentOverflowKeyword(value->id)) {
- overflowAlignmentKeyword = CSSValuePool::singleton().createIdentifierValue(value->id);
- value = m_valueList->next();
- if (value && isItemPositionKeyword(value->id))
- position = CSSValuePool::singleton().createIdentifierValue(value->id);
- else
- return false;
- } else
- return false;
-
- if (m_valueList->next())
- return false;
-
- ASSERT(position);
- if (overflowAlignmentKeyword)
- addProperty(propId, createPrimitiveValuePair(position.releaseNonNull(), overflowAlignmentKeyword.releaseNonNull()), important);
- else
- addProperty(propId, position.releaseNonNull(), important);
-
- return true;
-}
-
-static bool parseBackgroundClip(CSSParserValue& parserValue, RefPtr<CSSValue>& cssValue)
-{
- if (parserValue.id == CSSValueBorderBox || parserValue.id == CSSValuePaddingBox
- || parserValue.id == CSSValueContentBox || parserValue.id == CSSValueWebkitText) {
- cssValue = CSSValuePool::singleton().createIdentifierValue(parserValue.id);
- return true;
- }
- return false;
-}
-
-bool CSSParser::useLegacyBackgroundSizeShorthandBehavior() const
-{
- return m_context.useLegacyBackgroundSizeShorthandBehavior;
-}
-
-#if ENABLE(CSS_SCROLL_SNAP)
-bool CSSParser::parseNonElementSnapPoints(CSSPropertyID propId, bool important)
-{
- auto values = CSSValueList::createSpaceSeparated();
- while (CSSParserValue* value = m_valueList->current()) {
- ValueWithCalculation valueWithCalculation(*value);
- if (validateUnit(valueWithCalculation, FPercent | FLength))
- values->append(createPrimitiveNumericValue(valueWithCalculation));
- else if (value->unit == CSSParserValue::Function
- && value->function->args
- && value->function->args->size() == 1
- && equalLettersIgnoringASCIICase(value->function->name, "repeat(")) {
- ValueWithCalculation argumentWithCalculation(*value->function->args.get()->current());
- if (validateUnit(argumentWithCalculation, FLength | FPercent | FNonNeg)) {
- values->append(CSSValuePool::singleton().createValue(LengthRepeat::create(createPrimitiveNumericValue(argumentWithCalculation))));
- m_valueList->next();
- if (m_valueList->current())
- return false;
- break;
- }
- } else
- return false;
- m_valueList->next();
- }
- if (values->length()) {
- addProperty(propId, WTFMove(values), important);
- m_valueList->next();
- return true;
- }
- return false;
-}
-
-bool CSSParser::parseScrollSnapPositions(RefPtr<CSSValue>& cssValueX, RefPtr<CSSValue>& cssValueY)
-{
- cssValueX = parsePositionX(*m_valueList);
- if (!cssValueX)
- return false;
-
- // Don't accept odd-length lists of positions (must always have an X and a Y):
- if (!m_valueList->next())
- return false;
-
- cssValueY = parsePositionY(*m_valueList);
- if (!cssValueY)
- return false;
-
- return true;
-}
-
-bool CSSParser::parseScrollSnapDestination(CSSPropertyID propId, bool important)
-{
- auto position = CSSValueList::createSpaceSeparated();
- if (m_valueList->size() != 2)
- return false;
-
- RefPtr<CSSValue> cssValueX, cssValueY;
- if (!parseScrollSnapPositions(cssValueX, cssValueY))
- return false;
-
- position->append(cssValueX.releaseNonNull());
- position->append(cssValueY.releaseNonNull());
- addProperty(propId, WTFMove(position), important);
- m_valueList->next();
- return true;
-}
-
-bool CSSParser::parseScrollSnapCoordinate(CSSPropertyID propId, bool important)
-{
- auto positions = CSSValueList::createSpaceSeparated();
- while (m_valueList->current()) {
- RefPtr<CSSValue> cssValueX, cssValueY;
- if (!parseScrollSnapPositions(cssValueX, cssValueY))
- return false;
-
- positions->append(cssValueX.releaseNonNull());
- positions->append(cssValueY.releaseNonNull());
- m_valueList->next();
- }
-
- if (positions->length()) {
- addProperty(propId, WTFMove(positions), important);
- return true;
- }
- return false;
-}
-#endif
-
-const int cMaxFillProperties = 9;
-
-bool CSSParser::parseFillShorthand(CSSPropertyID propId, const CSSPropertyID* properties, int numProperties, bool important)
-{
- ASSERT(numProperties <= cMaxFillProperties);
- if (numProperties > cMaxFillProperties)
- return false;
-
- ShorthandScope scope(this, propId);
-
- bool parsedProperty[cMaxFillProperties] = { false };
- RefPtr<CSSValue> values[cMaxFillProperties];
- RefPtr<CSSValue> clipValue;
- RefPtr<CSSValue> positionYValue;
- RefPtr<CSSValue> repeatYValue;
- bool foundClip = false;
- int i;
- bool foundPositionCSSProperty = false;
-
- auto& cssValuePool = CSSValuePool::singleton();
- while (m_valueList->current()) {
- CSSParserValue& currentValue = *m_valueList->current();
- if (currentValue.unit == CSSParserValue::Operator && currentValue.iValue == ',') {
- // We hit the end. Fill in all remaining values with the initial value.
- m_valueList->next();
- for (i = 0; i < numProperties; ++i) {
- if (properties[i] == CSSPropertyBackgroundColor && parsedProperty[i])
- // Color is not allowed except as the last item in a list for backgrounds.
- // Reject the entire property.
- return false;
-
- if (!parsedProperty[i] && properties[i] != CSSPropertyBackgroundColor) {
- addFillValue(values[i], cssValuePool.createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
- addFillValue(positionYValue, cssValuePool.createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
- addFillValue(repeatYValue, cssValuePool.createImplicitInitialValue());
- if ((properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) && !parsedProperty[i]) {
- // If background-origin wasn't present, then reset background-clip also.
- addFillValue(clipValue, cssValuePool.createImplicitInitialValue());
- }
- }
- parsedProperty[i] = false;
- }
- if (!m_valueList->current())
- break;
- }
-
- bool sizeCSSPropertyExpected = false;
- if (isForwardSlashOperator(currentValue) && foundPositionCSSProperty) {
- sizeCSSPropertyExpected = true;
- m_valueList->next();
- }
-
- foundPositionCSSProperty = false;
- bool found = false;
- for (i = 0; !found && i < numProperties; ++i) {
-
- if (sizeCSSPropertyExpected && (properties[i] != CSSPropertyBackgroundSize && properties[i] != CSSPropertyWebkitMaskSize))
- continue;
- if (!sizeCSSPropertyExpected && (properties[i] == CSSPropertyBackgroundSize || properties[i] == CSSPropertyWebkitMaskSize))
- continue;
-
- if (!parsedProperty[i]) {
- RefPtr<CSSValue> val1;
- RefPtr<CSSValue> val2;
- CSSPropertyID propId1, propId2;
- CSSParserValue& parserValue = *m_valueList->current();
-
- if (parseFillProperty(properties[i], propId1, propId2, val1, val2)) {
- parsedProperty[i] = found = true;
- addFillValue(values[i], val1.releaseNonNull());
- if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
- addFillValue(positionYValue, val2.releaseNonNull());
- if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
- addFillValue(repeatYValue, val2.releaseNonNull());
- if (properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) {
- // Reparse the value as a clip, and see if we succeed.
- if (parseBackgroundClip(parserValue, val1))
- addFillValue(clipValue, val1.releaseNonNull()); // The property parsed successfully.
- else
- addFillValue(clipValue, cssValuePool.createImplicitInitialValue()); // Some value was used for origin that is not supported by clip. Just reset clip instead.
- }
- if (properties[i] == CSSPropertyBackgroundClip || properties[i] == CSSPropertyWebkitMaskClip)
- foundClip = true;
- if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
- foundPositionCSSProperty = true;
- }
- }
- }
-
- // if we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it
- if (!found)
- return false;
- }
-
- // Now add all of the properties we found.
- for (i = 0; i < numProperties; ++i) {
- // Fill in any remaining properties with the initial value.
- if (!parsedProperty[i]) {
- addFillValue(values[i], cssValuePool.createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
- addFillValue(positionYValue, cssValuePool.createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
- addFillValue(repeatYValue, cssValuePool.createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) {
- // If background-origin wasn't present, then reset background-clip also.
- addFillValue(clipValue, cssValuePool.createImplicitInitialValue());
- }
- }
- if (properties[i] == CSSPropertyBackgroundPosition) {
- addProperty(CSSPropertyBackgroundPositionX, WTFMove(values[i]), important);
- // it's OK to call WTFMove(positionYValue) since we only see CSSPropertyBackgroundPosition once
- addProperty(CSSPropertyBackgroundPositionY, WTFMove(positionYValue), important);
- } else if (properties[i] == CSSPropertyWebkitMaskPosition) {
- addProperty(CSSPropertyWebkitMaskPositionX, WTFMove(values[i]), important);
- // it's OK to call WTFMove(positionYValue) since we only see CSSPropertyWebkitMaskPosition once
- addProperty(CSSPropertyWebkitMaskPositionY, WTFMove(positionYValue), important);
- } else if (properties[i] == CSSPropertyBackgroundRepeat) {
- addProperty(CSSPropertyBackgroundRepeatX, WTFMove(values[i]), important);
- // it's OK to call WTFMove(repeatYValue) since we only see CSSPropertyBackgroundPosition once
- addProperty(CSSPropertyBackgroundRepeatY, WTFMove(repeatYValue), important);
- } else if (properties[i] == CSSPropertyWebkitMaskRepeat) {
- addProperty(CSSPropertyWebkitMaskRepeatX, WTFMove(values[i]), important);
- // it's OK to call WTFMove(repeatYValue) since we only see CSSPropertyBackgroundPosition once
- addProperty(CSSPropertyWebkitMaskRepeatY, WTFMove(repeatYValue), important);
- } else if ((properties[i] == CSSPropertyBackgroundClip || properties[i] == CSSPropertyWebkitMaskClip) && !foundClip)
- // Value is already set while updating origin
- continue;
- else if (properties[i] == CSSPropertyBackgroundSize && !parsedProperty[i] && useLegacyBackgroundSizeShorthandBehavior())
- continue;
- else
- addProperty(properties[i], WTFMove(values[i]), important);
-
- // Add in clip values when we hit the corresponding origin property.
- if (properties[i] == CSSPropertyBackgroundOrigin && !foundClip)
- addProperty(CSSPropertyBackgroundClip, WTFMove(clipValue), important);
- else if (properties[i] == CSSPropertyWebkitMaskOrigin && !foundClip)
- addProperty(CSSPropertyWebkitMaskClip, WTFMove(clipValue), important);
- }
-
- return true;
-}
-
-void CSSParser::addAnimationValue(RefPtr<CSSValue>& lval, Ref<CSSValue>&& rval)
-{
- if (!lval) {
- lval = WTFMove(rval);
- return;
- }
-
- if (is<CSSValueList>(*lval)) {
- downcast<CSSValueList>(*lval).append(WTFMove(rval));
- return;
- }
-
- auto list = CSSValueList::createCommaSeparated();
- list->append(lval.releaseNonNull());
- list->append(WTFMove(rval));
- lval = WTFMove(list);
-}
-
-bool CSSParser::parseAnimationShorthand(CSSPropertyID propId, bool important)
-{
- ASSERT(propId == CSSPropertyAnimation || propId == CSSPropertyWebkitAnimation);
-
- const unsigned numProperties = 8;
- const StylePropertyShorthand& shorthand = animationShorthandForParsing(propId);
-
- // The list of properties in the shorthand should be the same
- // length as the list with animation name in last position, even though they are
- // in a different order.
- ASSERT(numProperties == shorthand.length());
- ASSERT(numProperties == animationShorthand().length());
- ASSERT(numProperties == webkitAnimationShorthand().length());
-
- ShorthandScope scope(this, propId);
-
- bool parsedProperty[numProperties] = { false };
- AnimationParseContext context;
- RefPtr<CSSValue> values[numProperties];
-
- auto& cssValuePool = CSSValuePool::singleton();
- unsigned i;
- while (m_valueList->current()) {
- CSSParserValue* val = m_valueList->current();
- if (val->unit == CSSParserValue::Operator && val->iValue == ',') {
- // We hit the end. Fill in all remaining values with the initial value.
- m_valueList->next();
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- addAnimationValue(values[i], cssValuePool.createImplicitInitialValue());
- parsedProperty[i] = false;
- }
- if (!m_valueList->current())
- break;
- context.commitFirstAnimation();
- }
-
- bool found = false;
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i]) {
- RefPtr<CSSValue> val;
- if (parseAnimationProperty(shorthand.properties()[i], val, context)) {
- parsedProperty[i] = found = true;
- addAnimationValue(values[i], val.releaseNonNull());
- break;
- }
- }
-
- // There are more values to process but 'none' or 'all' were already defined as the animation property, the declaration becomes invalid.
- if (!context.animationPropertyKeywordAllowed() && context.hasCommittedFirstAnimation())
- return false;
- }
-
- // if we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it
- if (!found)
- return false;
- }
-
- // Fill in any remaining properties with the initial value.
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- addAnimationValue(values[i], cssValuePool.createImplicitInitialValue());
- }
-
- // Now add all of the properties we found.
- // In this case we have to explicitly set the variant form as well,
- // to make sure that a shorthand clears all existing prefixed and
- // unprefixed values.
- for (i = 0; i < numProperties; ++i)
- addPropertyWithPrefixingVariant(shorthand.properties()[i], WTFMove(values[i]), important);
-
- return true;
-}
-
-void CSSParser::addPropertyWithPrefixingVariant(CSSPropertyID propId, RefPtr<CSSValue>&& value, bool important, bool implicit)
-{
- addProperty(propId, value.copyRef(), important, implicit);
-
- CSSPropertyID prefixingVariant = prefixingVariantForPropertyId(propId);
- if (prefixingVariant == propId)
- return;
-
- if (m_currentShorthand) {
- // We can't use ShorthandScope here as we can already be inside one (e.g we are parsing CSSTransition).
- m_currentShorthand = prefixingVariantForPropertyId(m_currentShorthand);
- addProperty(prefixingVariant, WTFMove(value), important, implicit);
- m_currentShorthand = prefixingVariantForPropertyId(m_currentShorthand);
- } else
- addProperty(prefixingVariant, WTFMove(value), important, implicit);
-}
-
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseColumnWidth()
-{
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- CSSValueID id = valueWithCalculation.value().id;
- // Always parse this property in strict mode, since it would be ambiguous otherwise when used in the 'columns' shorthand property.
- if (id != CSSValueAuto && !(validateUnit(valueWithCalculation, FLength | FNonNeg, CSSStrictMode) && parsedDouble(valueWithCalculation)))
- return nullptr;
-
- auto parsedValue = parseValidPrimitive(id, valueWithCalculation);
- m_valueList->next();
- return parsedValue;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseColumnCount()
-{
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- CSSValueID id = valueWithCalculation.value().id;
-
- if (id != CSSValueAuto && !validateUnit(valueWithCalculation, FPositiveInteger, CSSQuirksMode))
- return nullptr;
-
- auto parsedValue = parseValidPrimitive(id, valueWithCalculation);
- m_valueList->next();
- return parsedValue;
-}
-
-bool CSSParser::parseColumnsShorthand(bool important)
-{
- RefPtr<CSSValue> columnWidth;
- RefPtr<CSSValue> columnCount;
- bool hasPendingExplicitAuto = false;
-
- for (unsigned propertiesParsed = 0; CSSParserValue* value = m_valueList->current(); ++propertiesParsed) {
- if (propertiesParsed >= 2)
- return false; // Too many values for this shorthand. Invalid declaration.
- if (!propertiesParsed && value->id == CSSValueAuto) {
- // 'auto' is a valid value for any of the two longhands, and at this point
- // we don't know which one(s) it is meant for. We need to see if there are other values first.
- m_valueList->next();
- hasPendingExplicitAuto = true;
- } else {
- if (!columnWidth) {
- if ((columnWidth = parseColumnWidth()))
- continue;
- }
- if (!columnCount) {
- if ((columnCount = parseColumnCount()))
- continue;
- }
- // If we didn't find at least one match, this is an invalid shorthand and we have to ignore it.
- return false;
- }
- }
-
- // Any unassigned property at this point will become implicit 'auto'.
- if (columnWidth)
- addProperty(CSSPropertyColumnWidth, WTFMove(columnWidth), important);
- else {
- addProperty(CSSPropertyColumnWidth, CSSValuePool::singleton().createIdentifierValue(CSSValueAuto), important, !hasPendingExplicitAuto /* implicit */);
- hasPendingExplicitAuto = false;
- }
-
- if (columnCount)
- addProperty(CSSPropertyColumnCount, WTFMove(columnCount), important);
- else
- addProperty(CSSPropertyColumnCount, CSSValuePool::singleton().createIdentifierValue(CSSValueAuto), important, !hasPendingExplicitAuto /* implicit */);
-
- return true;
-}
-
-bool CSSParser::parseTransitionShorthand(CSSPropertyID propId, bool important)
-{
- const unsigned numProperties = 4;
- const StylePropertyShorthand& shorthand = shorthandForProperty(propId);
- ASSERT(numProperties == shorthand.length());
-
- ShorthandScope scope(this, propId);
-
- bool parsedProperty[numProperties] = { false };
- AnimationParseContext context;
- RefPtr<CSSValue> values[numProperties];
-
- auto& cssValuePool = CSSValuePool::singleton();
- unsigned i;
- while (m_valueList->current()) {
- CSSParserValue* val = m_valueList->current();
- if (val->unit == CSSParserValue::Operator && val->iValue == ',') {
- // We hit the end. Fill in all remaining values with the initial value.
- m_valueList->next();
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- addAnimationValue(values[i], cssValuePool.createImplicitInitialValue());
- parsedProperty[i] = false;
- }
- if (!m_valueList->current())
- break;
- context.commitFirstAnimation();
- }
-
- bool found = false;
- for (i = 0; !found && i < numProperties; ++i) {
- if (!parsedProperty[i]) {
- RefPtr<CSSValue> val;
- if (parseAnimationProperty(shorthand.properties()[i], val, context)) {
- parsedProperty[i] = found = true;
- addAnimationValue(values[i], val.releaseNonNull());
- }
-
- // There are more values to process but 'none' or 'all' were already defined as the animation property, the declaration becomes invalid.
- if (!context.animationPropertyKeywordAllowed() && context.hasCommittedFirstAnimation())
- return false;
- }
- }
-
- // if we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it
- if (!found)
- return false;
- }
-
- // Fill in any remaining properties with the initial value.
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- addAnimationValue(values[i], cssValuePool.createImplicitInitialValue());
- }
-
- // Now add all of the properties we found.
- // In this case we have to explicitly set the variant form as well,
- // to make sure that a shorthand clears all existing prefixed and
- // unprefixed values.
- for (i = 0; i < numProperties; ++i)
- addPropertyWithPrefixingVariant(shorthand.properties()[i], WTFMove(values[i]), important);
-
- return true;
-}
-
-bool CSSParser::parseShorthand(CSSPropertyID propId, const StylePropertyShorthand& shorthand, bool important)
-{
- // We try to match as many properties as possible
- // We set up an array of booleans to mark which property has been found,
- // and we try to search for properties until it makes no longer any sense.
- ShorthandScope scope(this, propId);
-
- bool found = false;
- unsigned propertiesParsed = 0;
- bool propertyFound[6]= { false, false, false, false, false, false }; // 6 is enough size.
-
- while (m_valueList->current()) {
- found = false;
- for (unsigned propIndex = 0; !found && propIndex < shorthand.length(); ++propIndex) {
- if (!propertyFound[propIndex] && parseValue(shorthand.properties()[propIndex], important)) {
- propertyFound[propIndex] = found = true;
- propertiesParsed++;
- }
- }
-
- // if we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it
- if (!found)
- return false;
- }
-
- if (propertiesParsed == shorthand.length())
- return true;
-
- // Fill in any remaining properties with the initial value.
- auto& cssValuePool = CSSValuePool::singleton();
- ImplicitScope implicitScope(*this, PropertyImplicit);
- const StylePropertyShorthand* propertiesForInitialization = shorthand.propertiesForInitialization();
- for (unsigned i = 0; i < shorthand.length(); ++i) {
- if (propertyFound[i])
- continue;
-
- if (propertiesForInitialization) {
- const StylePropertyShorthand& initProperties = propertiesForInitialization[i];
- for (unsigned propIndex = 0; propIndex < initProperties.length(); ++propIndex)
- addProperty(initProperties.properties()[propIndex], cssValuePool.createImplicitInitialValue(), important);
- } else
- addProperty(shorthand.properties()[i], cssValuePool.createImplicitInitialValue(), important);
- }
-
- return true;
-}
-
-bool CSSParser::parse4Values(CSSPropertyID propId, const CSSPropertyID *properties, bool important)
-{
- /* From the CSS 2 specs, 8.3
- * If there is only one value, it applies to all sides. If there are two values, the top and
- * bottom margins are set to the first value and the right and left margins are set to the second.
- * If there are three values, the top is set to the first value, the left and right are set to the
- * second, and the bottom is set to the third. If there are four values, they apply to the top,
- * right, bottom, and left, respectively.
- */
-
- unsigned num = inShorthand() ? 1 : m_valueList->size();
-
- ShorthandScope scope(this, propId);
-
- // the order is top, right, bottom, left
- switch (num) {
- case 1: {
- if (!parseValue(properties[0], important))
- return false;
- CSSValue* value = m_parsedProperties.last().value();
- ImplicitScope implicitScope(*this, PropertyImplicit);
- addProperty(properties[1], value, important);
- addProperty(properties[2], value, important);
- addProperty(properties[3], value, important);
- break;
- }
- case 2: {
- if (!parseValue(properties[0], important) || !parseValue(properties[1], important))
- return false;
- CSSValue* value = m_parsedProperties[m_parsedProperties.size() - 2].value();
- ImplicitScope implicitScope(*this, PropertyImplicit);
- addProperty(properties[2], value, important);
- value = m_parsedProperties[m_parsedProperties.size() - 2].value();
- addProperty(properties[3], value, important);
- break;
- }
- case 3: {
- if (!parseValue(properties[0], important) || !parseValue(properties[1], important) || !parseValue(properties[2], important))
- return false;
- CSSValue* value = m_parsedProperties[m_parsedProperties.size() - 2].value();
- ImplicitScope implicitScope(*this, PropertyImplicit);
- addProperty(properties[3], value, important);
- break;
- }
- case 4: {
- if (!parseValue(properties[0], important) || !parseValue(properties[1], important) ||
- !parseValue(properties[2], important) || !parseValue(properties[3], important))
- return false;
- break;
- }
- default: {
- return false;
- }
- }
-
- return true;
-}
-
-// auto | <identifier>
-bool CSSParser::parsePage(CSSPropertyID propId, bool important)
-{
- ASSERT(propId == CSSPropertyPage);
-
- if (m_valueList->size() != 1)
- return false;
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- if (value->id == CSSValueAuto) {
- addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
- return true;
- } else if (value->id == 0 && value->unit == CSSPrimitiveValue::CSS_IDENT) {
- addProperty(propId, createPrimitiveStringValue(*value), important);
- return true;
- }
- return false;
-}
-
-// <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ]
-bool CSSParser::parseSize(CSSPropertyID propId, bool important)
-{
- ASSERT(propId == CSSPropertySize);
-
- if (m_valueList->size() > 2)
- return false;
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- auto parsedValues = CSSValueList::createSpaceSeparated();
-
- // First parameter.
- SizeParameterType paramType = parseSizeParameter(parsedValues, *value, None);
- if (paramType == None)
- return false;
-
- // Second parameter, if any.
- value = m_valueList->next();
- if (value) {
- paramType = parseSizeParameter(parsedValues, *value, paramType);
- if (paramType == None)
- return false;
- }
-
- addProperty(propId, WTFMove(parsedValues), important);
- return true;
-}
-
-CSSParser::SizeParameterType CSSParser::parseSizeParameter(CSSValueList& parsedValues, CSSParserValue& value, SizeParameterType prevParamType)
-{
- switch (value.id) {
- case CSSValueAuto:
- if (prevParamType == None) {
- parsedValues.append(CSSValuePool::singleton().createIdentifierValue(value.id));
- return Auto;
- }
- return None;
- case CSSValueLandscape:
- case CSSValuePortrait:
- if (prevParamType == None || prevParamType == PageSize) {
- parsedValues.append(CSSValuePool::singleton().createIdentifierValue(value.id));
- return Orientation;
- }
- return None;
- case CSSValueA3:
- case CSSValueA4:
- case CSSValueA5:
- case CSSValueB4:
- case CSSValueB5:
- case CSSValueLedger:
- case CSSValueLegal:
- case CSSValueLetter:
- if (prevParamType == None || prevParamType == Orientation) {
- // Normalize to Page Size then Orientation order by prepending.
- // This is not specified by the CSS3 Paged Media specification, but for simpler processing later (StyleResolver::applyPageSizeProperty).
- parsedValues.prepend(CSSValuePool::singleton().createIdentifierValue(value.id));
- return PageSize;
- }
- return None;
- case CSSValueInvalid: {
- ValueWithCalculation valueWithCalculation(value);
- if (validateUnit(valueWithCalculation, FLength | FNonNeg) && (prevParamType == None || prevParamType == Length)) {
- parsedValues.append(createPrimitiveNumericValue(valueWithCalculation));
- return Length;
- }
- return None;
- }
- default:
- return None;
- }
-}
-
-// [ <string> <string> ]+ | inherit | none
-// inherit and none are handled in parseValue.
-bool CSSParser::parseQuotes(CSSPropertyID propId, bool important)
-{
- auto values = CSSValueList::createCommaSeparated();
- while (CSSParserValue* value = m_valueList->current()) {
- if (value->unit != CSSPrimitiveValue::CSS_STRING)
- break;
- values->append(CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_STRING));
- m_valueList->next();
- }
- if (values->length()) {
- addProperty(propId, WTFMove(values), important);
- m_valueList->next();
- return true;
- }
- return false;
-}
-
-bool CSSParser::parseAlt(CSSPropertyID propID, bool important)
-{
- CSSParserValue& currentValue = *m_valueList->current();
- RefPtr<CSSValue> parsedValue;
-
- if (currentValue.unit == CSSPrimitiveValue::CSS_STRING)
- parsedValue = createPrimitiveStringValue(currentValue);
- else if (currentValue.unit == CSSParserValue::Function) {
- CSSParserValueList* args = currentValue.function->args.get();
- if (!args)
- return false;
- if (equalLettersIgnoringASCIICase(currentValue.function->name, "attr("))
- parsedValue = parseAttr(*args);
- }
-
- if (parsedValue) {
- addProperty(propID, parsedValue.releaseNonNull(), important);
- m_valueList->next();
- return true;
- }
-
- return false;
-}
-
-bool CSSParser::parseCustomPropertyDeclaration(bool important, CSSValueID id)
-{
- if (m_customPropertyName.isEmpty() || !m_valueList)
- return false;
-
- auto& cssValuePool = CSSValuePool::singleton();
- RefPtr<CSSValue> value;
- if (id == CSSValueInherit)
- value = cssValuePool.createInheritedValue();
- else if (id == CSSValueInitial)
- value = cssValuePool.createExplicitInitialValue();
- else if (id == CSSValueUnset)
- value = cssValuePool.createUnsetValue();
- else if (id == CSSValueRevert)
- value = cssValuePool.createRevertValue();
- else {
- auto valueList = CSSValueList::createFromParserValueList(*m_valueList);
- if (m_valueList->containsVariables())
- value = CSSVariableDependentValue::create(WTFMove(valueList), CSSPropertyCustom);
- else
- value = WTFMove(valueList);
- }
-
- addProperty(CSSPropertyCustom, CSSCustomPropertyValue::create(m_customPropertyName, value.releaseNonNull()), important, false);
- return true;
-}
-
-// [ <string> | <uri> | <counter> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit
-// in CSS 2.1 this got somewhat reduced:
-// [ <string> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit
-bool CSSParser::parseContent(CSSPropertyID propId, bool important)
-{
- auto values = CSSValueList::createCommaSeparated();
-
- while (CSSParserValue* value = m_valueList->current()) {
- RefPtr<CSSValue> parsedValue;
- if (value->unit == CSSPrimitiveValue::CSS_URI) {
- // url
- parsedValue = CSSImageValue::create(completeURL(value->string));
- } else if (value->unit == CSSParserValue::Function) {
- // attr(X) | counter(X [,Y]) | counters(X, Y, [,Z]) | -webkit-gradient(...)
- CSSParserValueList* args = value->function->args.get();
- if (!args)
- return false;
- if (equalLettersIgnoringASCIICase(value->function->name, "attr(")) {
- parsedValue = parseAttr(*args);
- if (!parsedValue)
- return false;
- } else if (equalLettersIgnoringASCIICase(value->function->name, "counter(")) {
- parsedValue = parseCounterContent(*args, false);
- if (!parsedValue)
- return false;
- } else if (equalLettersIgnoringASCIICase(value->function->name, "counters(")) {
- parsedValue = parseCounterContent(*args, true);
- if (!parsedValue)
- return false;
- } else if (isImageSetFunctionValue(*value)) {
- parsedValue = parseImageSet();
- if (!parsedValue)
- return false;
- } else if (isGeneratedImageValue(*value)) {
- if (!parseGeneratedImage(*m_valueList, parsedValue))
- return false;
- } else
- return false;
- } else if (value->unit == CSSPrimitiveValue::CSS_IDENT) {
- // open-quote
- // close-quote
- // no-open-quote
- // no-close-quote
- // inherit
- // FIXME: These are not yet implemented (http://bugs.webkit.org/show_bug.cgi?id=6503).
- // none
- // normal
- switch (value->id) {
- case CSSValueOpenQuote:
- case CSSValueCloseQuote:
- case CSSValueNoOpenQuote:
- case CSSValueNoCloseQuote:
- case CSSValueNone:
- case CSSValueNormal:
- parsedValue = CSSValuePool::singleton().createIdentifierValue(value->id);
- break;
- default:
- break;
- }
- } else if (value->unit == CSSPrimitiveValue::CSS_STRING) {
- parsedValue = createPrimitiveStringValue(*value);
- }
- if (!parsedValue)
- break;
- values->append(parsedValue.releaseNonNull());
- m_valueList->next();
- }
-
- if (values->length()) {
- addProperty(propId, WTFMove(values), important);
- m_valueList->next();
- return true;
- }
-
- return false;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAttr(CSSParserValueList& args)
-{
- if (args.size() != 1)
- return nullptr;
-
- CSSParserValue& argument = *args.current();
-
- if (argument.unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
-
- ASSERT(argument.string.length());
-
- // CSS allows identifiers with "-" at the start, like "-webkit-mask-image".
- // But HTML attribute names can't have those characters, and we should not
- // even parse them inside attr().
- if (argument.string[0] == '-')
- return nullptr;
-
- if (m_context.isHTMLDocument)
- argument.string.convertToASCIILowercaseInPlace();
-
- // FIXME: Is there some small benefit to creating an AtomicString here instead of a String?
- return CSSValuePool::singleton().createValue(String(argument.string), CSSPrimitiveValue::CSS_ATTR);
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseBackgroundColor()
-{
- CSSValueID id = m_valueList->current()->id;
- if (id == CSSValueWebkitText || isValidSystemColorValue(id) || id == CSSValueMenu || id == CSSValueCurrentcolor
- || (id >= CSSValueGrey && id < CSSValueWebkitText && inQuirksMode()))
- return CSSValuePool::singleton().createIdentifierValue(id);
- return parseColor();
-}
-
-bool CSSParser::parseFillImage(CSSParserValueList& valueList, RefPtr<CSSValue>& value)
-{
- if (valueList.current()->id == CSSValueNone) {
- value = CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
- return true;
- }
- if (valueList.current()->unit == CSSPrimitiveValue::CSS_URI) {
- value = CSSImageValue::create(completeURL(valueList.current()->string));
- return true;
- }
-
- if (isGeneratedImageValue(*valueList.current()))
- return parseGeneratedImage(valueList, value);
-
- if (isImageSetFunctionValue(*valueList.current())) {
- value = parseImageSet();
- if (value)
- return true;
- }
-
- return false;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parsePositionX(CSSParserValueList& valueList)
-{
- int id = valueList.current()->id;
- if (id == CSSValueLeft || id == CSSValueRight || id == CSSValueCenter) {
- int percent = 0;
- if (id == CSSValueRight)
- percent = 100;
- else if (id == CSSValueCenter)
- percent = 50;
- return CSSValuePool::singleton().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
- }
- ValueWithCalculation valueWithCalculation(*valueList.current());
- if (validateUnit(valueWithCalculation, FPercent | FLength))
- return createPrimitiveNumericValue(valueWithCalculation);
- return nullptr;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parsePositionY(CSSParserValueList& valueList)
-{
- int id = valueList.current()->id;
- if (id == CSSValueTop || id == CSSValueBottom || id == CSSValueCenter) {
- int percent = 0;
- if (id == CSSValueBottom)
- percent = 100;
- else if (id == CSSValueCenter)
- percent = 50;
- return CSSValuePool::singleton().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
- }
- ValueWithCalculation valueWithCalculation(*valueList.current());
- if (validateUnit(valueWithCalculation, FPercent | FLength))
- return createPrimitiveNumericValue(valueWithCalculation);
- return nullptr;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseFillPositionComponent(CSSParserValueList& valueList, unsigned& cumulativeFlags, FillPositionFlag& individualFlag, FillPositionParsingMode parsingMode)
-{
- CSSValueID id = valueList.current()->id;
- if (id == CSSValueLeft || id == CSSValueTop || id == CSSValueRight || id == CSSValueBottom || id == CSSValueCenter) {
- int percent = 0;
- if (id == CSSValueLeft || id == CSSValueRight) {
- if (cumulativeFlags & XFillPosition)
- return nullptr;
- cumulativeFlags |= XFillPosition;
- individualFlag = XFillPosition;
- if (id == CSSValueRight)
- percent = 100;
- }
- else if (id == CSSValueTop || id == CSSValueBottom) {
- if (cumulativeFlags & YFillPosition)
- return nullptr;
- cumulativeFlags |= YFillPosition;
- individualFlag = YFillPosition;
- if (id == CSSValueBottom)
- percent = 100;
- } else if (id == CSSValueCenter) {
- // Center is ambiguous, so we're not sure which position we've found yet, an x or a y.
- percent = 50;
- cumulativeFlags |= AmbiguousFillPosition;
- individualFlag = AmbiguousFillPosition;
- }
-
- if (parsingMode == ResolveValuesAsKeyword)
- return CSSValuePool::singleton().createIdentifierValue(id);
-
- return CSSValuePool::singleton().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
- }
- ValueWithCalculation valueWithCalculation(*valueList.current());
- if (!validateUnit(valueWithCalculation, FPercent | FLength))
- return nullptr;
-
- if (!cumulativeFlags) {
- cumulativeFlags |= XFillPosition;
- individualFlag = XFillPosition;
- } else if (cumulativeFlags & (XFillPosition | AmbiguousFillPosition)) {
- cumulativeFlags |= YFillPosition;
- individualFlag = YFillPosition;
- } else
- return nullptr;
- return createPrimitiveNumericValue(valueWithCalculation);
-}
-
-static bool isValueConflictingWithCurrentEdge(int value1, int value2)
-{
- if ((value1 == CSSValueLeft || value1 == CSSValueRight) && (value2 == CSSValueLeft || value2 == CSSValueRight))
- return true;
-
- if ((value1 == CSSValueTop || value1 == CSSValueBottom) && (value2 == CSSValueTop || value2 == CSSValueBottom))
- return true;
-
- return false;
-}
-
-static bool isFillPositionKeyword(CSSValueID value)
-{
- return value == CSSValueLeft || value == CSSValueTop || value == CSSValueBottom || value == CSSValueRight || value == CSSValueCenter;
-}
-
-void CSSParser::parse4ValuesFillPosition(CSSParserValueList& valueList, RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2, Ref<CSSPrimitiveValue>&& parsedValue1, Ref<CSSPrimitiveValue>&& parsedValue2)
-{
- // [ left | right ] [ <percentage] | <length> ] && [ top | bottom ] [ <percentage> | <length> ]
- // In the case of 4 values <position> requires the second value to be a length or a percentage.
- if (isFillPositionKeyword(parsedValue2->getValueID()))
- return;
-
- unsigned cumulativeFlags = 0;
- FillPositionFlag value3Flag = InvalidFillPosition;
- auto value3 = parseFillPositionComponent(valueList, cumulativeFlags, value3Flag, ResolveValuesAsKeyword);
- if (!value3)
- return;
-
- CSSValueID ident1 = parsedValue1->getValueID();
- CSSValueID ident3 = value3->getValueID();
-
- if (ident1 == CSSValueCenter)
- return;
-
- if (!isFillPositionKeyword(ident3) || ident3 == CSSValueCenter)
- return;
-
- // We need to check if the values are not conflicting, e.g. they are not on the same edge. It is
- // needed as the second call to parseFillPositionComponent was on purpose not checking it. In the
- // case of two values top 20px is invalid but in the case of 4 values it becomes valid.
- if (isValueConflictingWithCurrentEdge(ident1, ident3))
- return;
-
- valueList.next();
-
- cumulativeFlags = 0;
- FillPositionFlag value4Flag = InvalidFillPosition;
- auto value4 = parseFillPositionComponent(valueList, cumulativeFlags, value4Flag, ResolveValuesAsKeyword);
- if (!value4)
- return;
-
- // 4th value must be a length or a percentage.
- if (isFillPositionKeyword(value4->getValueID()))
- return;
-
- value1 = createPrimitiveValuePair(WTFMove(parsedValue1), WTFMove(parsedValue2));
- value2 = createPrimitiveValuePair(value3.releaseNonNull(), value4.releaseNonNull());
-
- if (ident1 == CSSValueTop || ident1 == CSSValueBottom)
- value1.swap(value2);
-
- valueList.next();
-}
-
-void CSSParser::parse3ValuesFillPosition(CSSParserValueList& valueList, RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2, Ref<CSSPrimitiveValue>&& parsedValue1, Ref<CSSPrimitiveValue>&& parsedValue2)
-{
- unsigned cumulativeFlags = 0;
- FillPositionFlag value3Flag = InvalidFillPosition;
- auto value3 = parseFillPositionComponent(valueList, cumulativeFlags, value3Flag, ResolveValuesAsKeyword);
-
- // value3 is not an expected value, we return.
- if (!value3)
- return;
-
- valueList.next();
-
- bool swapNeeded = false;
- CSSValueID ident1 = parsedValue1->getValueID();
- CSSValueID ident2 = parsedValue2->getValueID();
- CSSValueID ident3 = value3->getValueID();
-
- CSSValueID firstPositionKeyword;
- CSSValueID secondPositionKeyword;
-
- auto& cssValuePool = CSSValuePool::singleton();
- if (ident1 == CSSValueCenter) {
- // <position> requires the first 'center' to be followed by a keyword.
- if (!isFillPositionKeyword(ident2))
- return;
-
- // If 'center' is the first keyword then the last one needs to be a length.
- if (isFillPositionKeyword(ident3))
- return;
-
- firstPositionKeyword = CSSValueLeft;
- if (ident2 == CSSValueLeft || ident2 == CSSValueRight) {
- firstPositionKeyword = CSSValueTop;
- swapNeeded = true;
- }
- value1 = createPrimitiveValuePair(cssValuePool.createIdentifierValue(firstPositionKeyword), cssValuePool.createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE));
- value2 = createPrimitiveValuePair(WTFMove(parsedValue2), value3.copyRef());
- } else if (ident3 == CSSValueCenter) {
- if (isFillPositionKeyword(ident2))
- return;
-
- secondPositionKeyword = CSSValueTop;
- if (ident1 == CSSValueTop || ident1 == CSSValueBottom) {
- secondPositionKeyword = CSSValueLeft;
- swapNeeded = true;
- }
- value1 = createPrimitiveValuePair(WTFMove(parsedValue1), parsedValue2.copyRef());
- value2 = createPrimitiveValuePair(cssValuePool.createIdentifierValue(secondPositionKeyword), cssValuePool.createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE));
- } else {
- RefPtr<CSSPrimitiveValue> firstPositionValue;
- RefPtr<CSSPrimitiveValue> secondPositionValue;
-
- if (isFillPositionKeyword(ident2)) {
- // To match CSS grammar, we should only accept: [ center | left | right | bottom | top ] [ left | right | top | bottom ] [ <percentage> | <length> ].
- ASSERT(ident2 != CSSValueCenter);
-
- if (isFillPositionKeyword(ident3))
- return;
-
- secondPositionValue = value3;
- secondPositionKeyword = ident2;
- firstPositionValue = cssValuePool.createValue(0, CSSPrimitiveValue::CSS_PERCENTAGE);
- } else {
- // Per CSS, we should only accept: [ right | left | top | bottom ] [ <percentage> | <length> ] [ center | left | right | bottom | top ].
- if (!isFillPositionKeyword(ident3))
- return;
-
- firstPositionValue = parsedValue2.ptr();
- secondPositionKeyword = ident3;
- secondPositionValue = cssValuePool.createValue(0, CSSPrimitiveValue::CSS_PERCENTAGE);
- }
-
- if (isValueConflictingWithCurrentEdge(ident1, secondPositionKeyword))
- return;
-
- value1 = createPrimitiveValuePair(WTFMove(parsedValue1), firstPositionValue.releaseNonNull());
- value2 = createPrimitiveValuePair(cssValuePool.createIdentifierValue(secondPositionKeyword), secondPositionValue.releaseNonNull());
- }
-
- if (ident1 == CSSValueTop || ident1 == CSSValueBottom || swapNeeded)
- value1.swap(value2);
-
-#ifndef NDEBUG
- CSSPrimitiveValue& first = *value1;
- CSSPrimitiveValue& second = *value2;
- ident1 = first.getPairValue()->first()->getValueID();
- ident2 = second.getPairValue()->first()->getValueID();
- ASSERT(ident1 == CSSValueLeft || ident1 == CSSValueRight);
- ASSERT(ident2 == CSSValueBottom || ident2 == CSSValueTop);
-#endif
-}
-
-inline bool CSSParser::isPotentialPositionValue(CSSParserValue& value)
-{
- if (isFillPositionKeyword(value.id))
- return true;
- ValueWithCalculation valueWithCalculation(value);
- return validateUnit(valueWithCalculation, FPercent | FLength);
-}
-
-void CSSParser::parseFillPosition(CSSParserValueList& valueList, RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2)
-{
- unsigned numberOfValues = 0;
- for (unsigned i = valueList.currentIndex(); i < valueList.size(); ++i, ++numberOfValues) {
- CSSParserValue* current = valueList.valueAt(i);
- if (!current || isComma(current) || isForwardSlashOperator(*current) || !isPotentialPositionValue(*current))
- break;
- }
-
- if (numberOfValues > 4)
- return;
-
- // If we are parsing two values, we can safely call the CSS 2.1 parsing function and return.
- if (numberOfValues <= 2) {
- parse2ValuesFillPosition(valueList, value1, value2);
- return;
- }
-
- ASSERT(numberOfValues > 2 && numberOfValues <= 4);
-
- CSSParserValue* value = valueList.current();
-
- // <position> requires the first value to be a background keyword.
- if (!isFillPositionKeyword(value->id))
- return;
-
- // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length.
- unsigned cumulativeFlags = 0;
- FillPositionFlag value1Flag = InvalidFillPosition;
- FillPositionFlag value2Flag = InvalidFillPosition;
- value1 = parseFillPositionComponent(valueList, cumulativeFlags, value1Flag, ResolveValuesAsKeyword);
- if (!value1)
- return;
-
- value = valueList.next();
-
- // In case we are parsing more than two values, relax the check inside of parseFillPositionComponent. top 20px is
- // a valid start for <position>.
- cumulativeFlags = AmbiguousFillPosition;
- value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag, ResolveValuesAsKeyword);
- if (value2)
- valueList.next();
- else {
- value1 = nullptr;
- return;
- }
-
- auto parsedValue1 = value1.releaseNonNull();
- auto parsedValue2 = value2.releaseNonNull();
-
- // Per CSS3 syntax, <position> can't have 'center' as its second keyword as we have more arguments to follow.
- if (parsedValue2->getValueID() == CSSValueCenter)
- return;
-
- if (numberOfValues == 3)
- parse3ValuesFillPosition(valueList, value1, value2, WTFMove(parsedValue1), WTFMove(parsedValue2));
- else
- parse4ValuesFillPosition(valueList, value1, value2, WTFMove(parsedValue1), WTFMove(parsedValue2));
-}
-
-void CSSParser::parse2ValuesFillPosition(CSSParserValueList& valueList, RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2)
-{
- CSSParserValue* value = valueList.current();
-
- // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length.
- unsigned cumulativeFlags = 0;
- FillPositionFlag value1Flag = InvalidFillPosition;
- FillPositionFlag value2Flag = InvalidFillPosition;
- value1 = parseFillPositionComponent(valueList, cumulativeFlags, value1Flag);
- if (!value1)
- return;
-
- // It only takes one value for background-position to be correctly parsed if it was specified in a shorthand (since we
- // can assume that any other values belong to the rest of the shorthand). If we're not parsing a shorthand, though, the
- // value was explicitly specified for our property.
- value = valueList.next();
-
- // First check for the comma. If so, we are finished parsing this value or value pair.
- if (isComma(value))
- value = nullptr;
-
- if (value) {
- value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag);
- if (value2)
- valueList.next();
- else {
- if (!inShorthand()) {
- value1 = nullptr;
- return;
- }
- }
- }
-
- if (!value2)
- // Only one value was specified. If that value was not a keyword, then it sets the x position, and the y position
- // is simply 50%. This is our default.
- // For keywords, the keyword was either an x-keyword (left/right), a y-keyword (top/bottom), or an ambiguous keyword (center).
- // For left/right/center, the default of 50% in the y is still correct.
- value2 = CSSValuePool::singleton().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE);
-
- if (value1Flag == YFillPosition || value2Flag == XFillPosition)
- value1.swap(value2);
-}
-
-void CSSParser::parseFillRepeat(RefPtr<CSSValue>& value1, RefPtr<CSSValue>& value2)
-{
- CSSValueID id = m_valueList->current()->id;
- if (id == CSSValueRepeatX) {
- m_implicitShorthand = true;
- value1 = CSSValuePool::singleton().createIdentifierValue(CSSValueRepeat);
- value2 = CSSValuePool::singleton().createIdentifierValue(CSSValueNoRepeat);
- m_valueList->next();
- return;
- }
- if (id == CSSValueRepeatY) {
- m_implicitShorthand = true;
- value1 = CSSValuePool::singleton().createIdentifierValue(CSSValueNoRepeat);
- value2 = CSSValuePool::singleton().createIdentifierValue(CSSValueRepeat);
- m_valueList->next();
- return;
- }
- if (id == CSSValueRepeat || id == CSSValueNoRepeat || id == CSSValueRound || id == CSSValueSpace)
- value1 = CSSValuePool::singleton().createIdentifierValue(id);
- else {
- value1 = nullptr;
- return;
- }
-
- CSSParserValue* value = m_valueList->next();
-
- // Parse the second value if one is available
- if (value && !isComma(value)) {
- id = value->id;
- if (id == CSSValueRepeat || id == CSSValueNoRepeat || id == CSSValueRound || id == CSSValueSpace) {
- value2 = CSSValuePool::singleton().createIdentifierValue(id);
- m_valueList->next();
- return;
- }
- }
-
- // If only one value was specified, value2 is the same as value1.
- m_implicitShorthand = true;
- value2 = CSSValuePool::singleton().createIdentifierValue(downcast<CSSPrimitiveValue>(*value1).getValueID());
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseFillSize(CSSPropertyID propId, bool& allowComma)
-{
- allowComma = true;
- CSSParserValue* value = m_valueList->current();
-
- if (value->id == CSSValueContain || value->id == CSSValueCover)
- return CSSValuePool::singleton().createIdentifierValue(value->id);
-
- RefPtr<CSSPrimitiveValue> parsedValue1;
-
- if (value->id == CSSValueAuto)
- parsedValue1 = CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
- else {
- ValueWithCalculation valueWithCalculation(*value);
- if (!validateUnit(valueWithCalculation, FLength | FPercent))
- return nullptr;
- parsedValue1 = createPrimitiveNumericValue(valueWithCalculation);
- }
-
- RefPtr<CSSPrimitiveValue> parsedValue2;
- if ((value = m_valueList->next())) {
- if (value->unit == CSSParserValue::Operator && value->iValue == ',')
- allowComma = false;
- else if (value->id != CSSValueAuto) {
- ValueWithCalculation valueWithCalculation(*value);
- if (!validateUnit(valueWithCalculation, FLength | FPercent)) {
- if (!inShorthand())
- return nullptr;
- // We need to rewind the value list, so that when it is advanced we'll end up back at this value.
- m_valueList->previous();
- } else
- parsedValue2 = createPrimitiveNumericValue(valueWithCalculation);
- }
- } else if (!parsedValue2 && propId == CSSPropertyWebkitBackgroundSize) {
- // For backwards compatibility we set the second value to the first if it is omitted.
- // We only need to do this for -webkit-background-size. It should be safe to let masks match
- // the real property.
- parsedValue2 = parsedValue1;
- }
-
- if (!parsedValue2)
- return parsedValue1;
- return createPrimitiveValuePair(parsedValue1.releaseNonNull(), parsedValue2.releaseNonNull(), propId == CSSPropertyWebkitBackgroundSize ? Pair::IdenticalValueEncoding::Coalesce : Pair::IdenticalValueEncoding::DoNotCoalesce);
-}
-
-bool CSSParser::parseFillProperty(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2,
- RefPtr<CSSValue>& retValue1, RefPtr<CSSValue>& retValue2)
-{
- RefPtr<CSSValueList> values;
- RefPtr<CSSValueList> values2;
- CSSParserValue* currentValue;
- RefPtr<CSSValue> value;
- RefPtr<CSSValue> value2;
-
- bool allowComma = false;
-
- retValue1 = retValue2 = nullptr;
- propId1 = propId;
- propId2 = propId;
- if (propId == CSSPropertyBackgroundPosition) {
- propId1 = CSSPropertyBackgroundPositionX;
- propId2 = CSSPropertyBackgroundPositionY;
- } else if (propId == CSSPropertyWebkitMaskPosition) {
- propId1 = CSSPropertyWebkitMaskPositionX;
- propId2 = CSSPropertyWebkitMaskPositionY;
- } else if (propId == CSSPropertyBackgroundRepeat) {
- propId1 = CSSPropertyBackgroundRepeatX;
- propId2 = CSSPropertyBackgroundRepeatY;
- } else if (propId == CSSPropertyWebkitMaskRepeat) {
- propId1 = CSSPropertyWebkitMaskRepeatX;
- propId2 = CSSPropertyWebkitMaskRepeatY;
- }
-
- while ((currentValue = m_valueList->current())) {
- RefPtr<CSSValue> currValue;
- RefPtr<CSSValue> currValue2;
-
- if (allowComma) {
- if (!isComma(currentValue))
- return false;
- m_valueList->next();
- allowComma = false;
- } else {
- allowComma = true;
- switch (propId) {
- case CSSPropertyBackgroundColor:
- currValue = parseBackgroundColor();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyBackgroundAttachment:
- if (currentValue->id == CSSValueScroll || currentValue->id == CSSValueFixed || currentValue->id == CSSValueLocal) {
- currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundImage:
- case CSSPropertyWebkitMaskImage:
- if (parseFillImage(*m_valueList, currValue))
- m_valueList->next();
- break;
- case CSSPropertyWebkitBackgroundClip:
- case CSSPropertyWebkitBackgroundOrigin:
- case CSSPropertyWebkitMaskClip:
- case CSSPropertyWebkitMaskOrigin:
- // The first three values here are deprecated and do not apply to the version of the property that has
- // the -webkit- prefix removed.
- if (currentValue->id == CSSValueBorder || currentValue->id == CSSValuePadding || currentValue->id == CSSValueContent
- || currentValue->id == CSSValueBorderBox || currentValue->id == CSSValuePaddingBox || currentValue->id == CSSValueContentBox
- || ((propId == CSSPropertyWebkitBackgroundClip || propId == CSSPropertyWebkitMaskClip)
- && (currentValue->id == CSSValueText || currentValue->id == CSSValueWebkitText))) {
- currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundClip:
- if (parseBackgroundClip(*currentValue, currValue))
- m_valueList->next();
- break;
- case CSSPropertyBackgroundOrigin:
- if (currentValue->id == CSSValueBorderBox || currentValue->id == CSSValuePaddingBox || currentValue->id == CSSValueContentBox) {
- currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundPosition:
- case CSSPropertyWebkitMaskPosition: {
- RefPtr<CSSPrimitiveValue> value1;
- RefPtr<CSSPrimitiveValue> value2;
- parseFillPosition(*m_valueList, value1, value2);
- currValue = WTFMove(value1);
- currValue2 = WTFMove(value2);
- // parseFillPosition advances the m_valueList pointer.
- break;
- }
- case CSSPropertyBackgroundPositionX:
- case CSSPropertyWebkitMaskPositionX: {
- currValue = parsePositionX(*m_valueList);
- if (currValue)
- m_valueList->next();
- break;
- }
- case CSSPropertyBackgroundPositionY:
- case CSSPropertyWebkitMaskPositionY: {
- currValue = parsePositionY(*m_valueList);
- if (currValue)
- m_valueList->next();
- break;
- }
- case CSSPropertyWebkitBackgroundComposite:
- case CSSPropertyWebkitMaskComposite:
- if (currentValue->id >= CSSValueClear && currentValue->id <= CSSValuePlusLighter) {
- currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundBlendMode:
- if (currentValue->id == CSSValueNormal || currentValue->id == CSSValueMultiply
- || currentValue->id == CSSValueScreen || currentValue->id == CSSValueOverlay || currentValue->id == CSSValueDarken
- || currentValue->id == CSSValueLighten || currentValue->id == CSSValueColorDodge || currentValue->id == CSSValueColorBurn
- || currentValue->id == CSSValueHardLight || currentValue->id == CSSValueSoftLight || currentValue->id == CSSValueDifference
- || currentValue->id == CSSValueExclusion) {
- currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundRepeat:
- case CSSPropertyWebkitMaskRepeat:
- parseFillRepeat(currValue, currValue2);
- // parseFillRepeat advances the m_valueList pointer
- break;
- case CSSPropertyBackgroundSize:
- case CSSPropertyWebkitBackgroundSize:
- case CSSPropertyWebkitMaskSize: {
- currValue = parseFillSize(propId, allowComma);
- if (currValue)
- m_valueList->next();
- break;
- }
- case CSSPropertyWebkitMaskSourceType: {
- if (currentValue->id == CSSValueAuto || currentValue->id == CSSValueAlpha || currentValue->id == CSSValueLuminance) {
- currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
- m_valueList->next();
- } else
- currValue = nullptr;
- break;
- }
- default:
- break;
- }
- if (!currValue)
- return false;
-
- if (value && !values) {
- values = CSSValueList::createCommaSeparated();
- values->append(value.releaseNonNull());
- }
-
- if (value2 && !values2) {
- values2 = CSSValueList::createCommaSeparated();
- values2->append(value2.releaseNonNull());
- }
-
- if (values)
- values->append(currValue.releaseNonNull());
- else
- value = WTFMove(currValue);
- if (currValue2) {
- if (values2)
- values2->append(currValue2.releaseNonNull());
- else
- value2 = WTFMove(currValue2);
- }
- }
-
- // When parsing any fill shorthand property, we let it handle building up the lists for all
- // properties.
- if (inShorthand())
- break;
- }
-
- if (values && values->length()) {
- retValue1 = WTFMove(values);
- if (values2 && values2->length())
- retValue2 = WTFMove(values2);
- return true;
- }
- if (value) {
- retValue1 = WTFMove(value);
- retValue2 = WTFMove(value2);
- return true;
- }
- return false;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationDelay()
-{
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- if (validateUnit(valueWithCalculation, FTime))
- return createPrimitiveNumericValue(valueWithCalculation);
- return nullptr;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationDirection()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueNormal || value->id == CSSValueAlternate || value->id == CSSValueReverse || value->id == CSSValueAlternateReverse)
- return CSSValuePool::singleton().createIdentifierValue(value->id);
- return nullptr;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationDuration()
-{
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- if (validateUnit(valueWithCalculation, FTime | FNonNeg))
- return createPrimitiveNumericValue(valueWithCalculation);
- return nullptr;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationFillMode()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueNone || value->id == CSSValueForwards || value->id == CSSValueBackwards || value->id == CSSValueBoth)
- return CSSValuePool::singleton().createIdentifierValue(value->id);
- return nullptr;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationIterationCount()
-{
- CSSParserValue& value = *m_valueList->current();
- if (value.id == CSSValueInfinite)
- return CSSValuePool::singleton().createIdentifierValue(value.id);
- ValueWithCalculation valueWithCalculation(value);
- if (validateUnit(valueWithCalculation, FNumber | FNonNeg))
- return createPrimitiveNumericValue(valueWithCalculation);
- return nullptr;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationName()
-{
- CSSParserValue& value = *m_valueList->current();
- if (value.unit == CSSPrimitiveValue::CSS_STRING || value.unit == CSSPrimitiveValue::CSS_IDENT) {
- if (value.id == CSSValueNone || (value.unit == CSSPrimitiveValue::CSS_STRING && equalLettersIgnoringASCIICase(value, "none"))) {
- return CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
- }
- return createPrimitiveStringValue(value);
- }
- return nullptr;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationPlayState()
-{
- CSSParserValue& value = *m_valueList->current();
- if (value.id == CSSValueRunning || value.id == CSSValuePaused)
- return CSSValuePool::singleton().createIdentifierValue(value.id);
- return nullptr;
-}
-
-#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
-RefPtr<CSSValue> CSSParser::parseAnimationTrigger()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueAuto)
- return CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
-
- if (value->unit != CSSParserValue::Function)
- return nullptr;
-
- CSSParserValueList* args = value->function->args.get();
-
- if (equalLettersIgnoringASCIICase(value->function->name, "container-scroll(")) {
- if (!args || (args->size() != 1 && args->size() != 3))
- return nullptr;
-
- CSSParserValue* argument = args->current();
- ValueWithCalculation firstArgumentWithCalculation(*argument);
- if (!validateUnit(firstArgumentWithCalculation, FLength))
- return nullptr;
-
- auto startValue = createPrimitiveNumericValue(firstArgumentWithCalculation);
-
- argument = args->next();
-
- if (!argument)
- return CSSAnimationTriggerScrollValue::create(WTFMove(startValue));
-
- if (!isComma(argument))
- return nullptr;
-
- argument = args->next();
- ValueWithCalculation secondArgumentWithCalculation(*argument);
- if (!validateUnit(secondArgumentWithCalculation, FLength))
- return nullptr;
-
- auto endValue = createPrimitiveNumericValue(secondArgumentWithCalculation);
-
- return CSSAnimationTriggerScrollValue::create(WTFMove(startValue), WTFMove(endValue));
- }
-
- return nullptr;
-}
-#endif
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationProperty(AnimationParseContext& context)
-{
- CSSParserValue& value = *m_valueList->current();
- if (value.unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
- CSSPropertyID result = cssPropertyID(value.string);
- if (result && result != CSSPropertyAll) // "all" value in animation is not equivalent to the all property.
- return CSSValuePool::singleton().createIdentifierValue(result);
- if (equalLettersIgnoringASCIICase(value, "all")) {
- context.sawAnimationPropertyKeyword();
- return CSSValuePool::singleton().createIdentifierValue(CSSValueAll);
- }
- if (equalLettersIgnoringASCIICase(value, "none")) {
- context.commitAnimationPropertyKeyword();
- context.sawAnimationPropertyKeyword();
- return CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
- }
- return nullptr;
-}
-
-/* static */
-Vector<double> CSSParser::parseKeyframeSelector(const String& selector) {
- Vector<double> keys;
- Vector<String> strings;
- selector.split(',', strings);
-
- keys.reserveInitialCapacity(strings.size());
- for (size_t i = 0; i < strings.size(); ++i) {
- double key = -1;
- String cur = strings[i].stripWhiteSpace();
-
- // For now the syntax MUST be 'xxx%' or 'from' or 'to', where xxx is a legal floating point number
- if (equalLettersIgnoringASCIICase(cur, "from"))
- key = 0;
- else if (equalLettersIgnoringASCIICase(cur, "to"))
- key = 1;
- else if (cur.endsWith('%')) {
- double k = cur.substring(0, cur.length() - 1).toDouble();
- if (k >= 0 && k <= 100)
- key = k / 100;
- }
- if (key < 0) {
- keys.clear();
- break;
- }
- keys.uncheckedAppend(key);
- }
-
- return keys;
-}
-
-bool CSSParser::parseTransformOriginShorthand(RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2, RefPtr<CSSValue>& value3)
-{
- parse2ValuesFillPosition(*m_valueList, value1, value2);
-
- // now get z
- if (m_valueList->current()) {
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- if (validateUnit(valueWithCalculation, FLength)) {
- value3 = createPrimitiveNumericValue(valueWithCalculation);
- m_valueList->next();
- return true;
- }
- return false;
- }
- value3 = CSSValuePool::singleton().createImplicitInitialValue();
- return true;
-}
-
-bool CSSParser::isSpringTimingFunctionEnabled() const
-{
- return m_context.springTimingFunctionEnabled;
-}
-
-Optional<double> CSSParser::parseCubicBezierTimingFunctionValue(CSSParserValueList& args)
-{
- ValueWithCalculation argumentWithCalculation(*args.current());
- if (!validateUnit(argumentWithCalculation, FNumber))
- return Nullopt;
- Optional<double> result = parsedDouble(argumentWithCalculation);
- CSSParserValue* nextValue = args.next();
- if (!nextValue) {
- // The last number in the function has no comma after it, so we're done.
- return result;
- }
- if (!isComma(nextValue))
- return Nullopt;
- args.next();
- return result;
-}
-
-Optional<double> CSSParser::parseSpringTimingFunctionValue(CSSParserValueList& args)
-{
- ValueWithCalculation argumentWithCalculation(*args.current());
- if (!validateUnit(argumentWithCalculation, FNumber))
- return Nullopt;
- Optional<double> result = parsedDouble(argumentWithCalculation);
- args.next();
- return result;
-}
-
-RefPtr<CSSValue> CSSParser::parseAnimationTimingFunction()
-{
- CSSParserValue& value = *m_valueList->current();
- if (value.id == CSSValueEase || value.id == CSSValueLinear || value.id == CSSValueEaseIn || value.id == CSSValueEaseOut
- || value.id == CSSValueEaseInOut || value.id == CSSValueStepStart || value.id == CSSValueStepEnd)
- return CSSValuePool::singleton().createIdentifierValue(value.id);
-
- // We must be a function.
- if (value.unit != CSSParserValue::Function)
- return nullptr;
-
- CSSParserValueList* args = value.function->args.get();
-
- if (equalLettersIgnoringASCIICase(value.function->name, "steps(")) {
- // For steps, 1 or 2 params must be specified (comma-separated)
- if (!args || (args->size() != 1 && args->size() != 3))
- return nullptr;
-
- // There are two values.
- int numSteps;
- bool stepAtStart = false;
-
- CSSParserValue* argument = args->current();
- ValueWithCalculation argumentWithCalculation(*argument);
- if (!validateUnit(argumentWithCalculation, FInteger))
- return nullptr;
- numSteps = clampToInteger(parsedDouble(argumentWithCalculation));
- if (numSteps < 1)
- return nullptr;
- argument = args->next();
-
- if (argument) {
- // There is a comma so we need to parse the second value
- if (!isComma(argument))
- return nullptr;
- argument = args->next();
- if (argument->id != CSSValueStart && argument->id != CSSValueEnd)
- return nullptr;
- stepAtStart = argument->id == CSSValueStart;
- }
-
- return CSSStepsTimingFunctionValue::create(numSteps, stepAtStart);
- }
-
- if (equalLettersIgnoringASCIICase(value.function->name, "cubic-bezier(")) {
- // For cubic bezier, 4 values must be specified (comma-separated).
- if (!args || args->size() != 7)
- return nullptr;
-
- // There are two points specified. The x values must be between 0 and 1 but the y values can exceed this range.
-
- auto x1 = parseCubicBezierTimingFunctionValue(*args);
- if (!x1 || x1.value() < 0 || x1.value() > 1)
- return nullptr;
-
- auto y1 = parseCubicBezierTimingFunctionValue(*args);
- if (!y1)
- return nullptr;
-
- auto x2 = parseCubicBezierTimingFunctionValue(*args);
- if (!x2 || x2.value() < 0 || x2.value() > 1)
- return nullptr;
-
- auto y2 = parseCubicBezierTimingFunctionValue(*args);
- if (!y2)
- return nullptr;
-
- return CSSCubicBezierTimingFunctionValue::create(x1.value(), y1.value(), x2.value(), y2.value());
- }
-
- if (isSpringTimingFunctionEnabled() && equalLettersIgnoringASCIICase(value.function->name, "spring(")) {
- // For a spring, 4 values must be specified (space-separated).
- // FIXME: Make the arguments all optional.
- if (!args || args->size() != 4)
- return nullptr;
-
- // Mass must be greater than 0.
- auto mass = parseSpringTimingFunctionValue(*args);
- if (!mass || mass.value() <= 0)
- return nullptr;
-
- // Stiffness must be greater than 0.
- auto stiffness = parseSpringTimingFunctionValue(*args);
- if (!stiffness || stiffness.value() <= 0)
- return nullptr;
-
- // Damping coefficient must be greater than or equal to 0.
- auto damping = parseSpringTimingFunctionValue(*args);
- if (!damping || damping.value() < 0)
- return nullptr;
-
- // Initial velocity may have any value.
- auto initialVelocity = parseSpringTimingFunctionValue(*args);
- if (!initialVelocity)
- return nullptr;
-
- return CSSSpringTimingFunctionValue::create(mass.value(), stiffness.value(), damping.value(), initialVelocity.value());
- }
-
- return nullptr;
-}
-
-bool CSSParser::parseAnimationProperty(CSSPropertyID propId, RefPtr<CSSValue>& result, AnimationParseContext& context)
-{
- RefPtr<CSSValueList> values;
- CSSParserValue* val;
- RefPtr<CSSValue> value;
- bool allowComma = false;
-
- result = nullptr;
-
- while ((val = m_valueList->current())) {
- RefPtr<CSSValue> currValue;
- if (allowComma) {
- if (!isComma(val))
- return false;
- m_valueList->next();
- allowComma = false;
- }
- else {
- switch (propId) {
- case CSSPropertyAnimationDelay:
- case CSSPropertyWebkitAnimationDelay:
- case CSSPropertyTransitionDelay:
- case CSSPropertyWebkitTransitionDelay:
- currValue = parseAnimationDelay();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationDirection:
- case CSSPropertyWebkitAnimationDirection:
- currValue = parseAnimationDirection();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationDuration:
- case CSSPropertyWebkitAnimationDuration:
- case CSSPropertyTransitionDuration:
- case CSSPropertyWebkitTransitionDuration:
- currValue = parseAnimationDuration();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationFillMode:
- case CSSPropertyWebkitAnimationFillMode:
- currValue = parseAnimationFillMode();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationIterationCount:
- case CSSPropertyWebkitAnimationIterationCount:
- currValue = parseAnimationIterationCount();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationName:
- case CSSPropertyWebkitAnimationName:
- currValue = parseAnimationName();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationPlayState:
- case CSSPropertyWebkitAnimationPlayState:
- currValue = parseAnimationPlayState();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyTransitionProperty:
- case CSSPropertyWebkitTransitionProperty:
- currValue = parseAnimationProperty(context);
- if (value && !context.animationPropertyKeywordAllowed())
- return false;
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationTimingFunction:
- case CSSPropertyWebkitAnimationTimingFunction:
- case CSSPropertyTransitionTimingFunction:
- case CSSPropertyWebkitTransitionTimingFunction:
- currValue = parseAnimationTimingFunction();
- if (currValue)
- m_valueList->next();
- break;
-#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
- case CSSPropertyWebkitAnimationTrigger:
- currValue = parseAnimationTrigger();
- if (currValue)
- m_valueList->next();
- break;
-#endif
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
-
- if (!currValue)
- return false;
-
- if (value && !values) {
- values = CSSValueList::createCommaSeparated();
- values->append(value.releaseNonNull());
- }
-
- if (values)
- values->append(currValue.releaseNonNull());
- else
- value = WTFMove(currValue);
-
- allowComma = true;
- }
-
- // When parsing the 'transition' shorthand property, we let it handle building up the lists for all
- // properties.
- if (inShorthand())
- break;
- }
-
- if (values && values->length()) {
- result = WTFMove(values);
- return true;
- }
- if (value) {
- result = WTFMove(value);
- return true;
- }
- return false;
-}
-
-#if ENABLE(CSS_GRID_LAYOUT)
-static inline bool isValidGridPositionCustomIdent(const CSSParserValue& value)
-{
- return value.unit == CSSPrimitiveValue::CSS_IDENT && value.id != CSSValueSpan && value.id != CSSValueAuto;
-}
-
-// The function parses [ <integer> || <custom-ident> ] in <grid-line> (which can be stand alone or with 'span').
-bool CSSParser::parseIntegerOrCustomIdentFromGridPosition(RefPtr<CSSPrimitiveValue>& numericValue, RefPtr<CSSPrimitiveValue>& gridLineName)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- if (validateUnit(valueWithCalculation, FInteger) && valueWithCalculation.value().fValue) {
- numericValue = createPrimitiveNumericValue(valueWithCalculation);
- CSSParserValue* nextValue = m_valueList->next();
- if (nextValue && isValidGridPositionCustomIdent(*nextValue)) {
- gridLineName = createPrimitiveStringValue(*nextValue);
- m_valueList->next();
- }
- return true;
- }
-
- if (isValidGridPositionCustomIdent(valueWithCalculation)) {
- gridLineName = createPrimitiveStringValue(valueWithCalculation);
- if (CSSParserValue* nextValue = m_valueList->next()) {
- ValueWithCalculation nextValueWithCalculation(*nextValue);
- if (validateUnit(nextValueWithCalculation, FInteger) && nextValueWithCalculation.value().fValue) {
- numericValue = createPrimitiveNumericValue(nextValueWithCalculation);
- m_valueList->next();
- }
- }
- return true;
- }
-
- return false;
-}
-
-RefPtr<CSSValue> CSSParser::parseGridPosition()
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueAuto) {
- m_valueList->next();
- return CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
- }
-
- RefPtr<CSSPrimitiveValue> numericValue;
- RefPtr<CSSPrimitiveValue> gridLineName;
- bool hasSeenSpanKeyword = false;
-
- if (value->id == CSSValueSpan) {
- hasSeenSpanKeyword = true;
- if (auto* nextValue = m_valueList->next()) {
- if (!isForwardSlashOperator(*nextValue) && !parseIntegerOrCustomIdentFromGridPosition(numericValue, gridLineName))
- return nullptr;
- }
- } else if (parseIntegerOrCustomIdentFromGridPosition(numericValue, gridLineName)) {
- value = m_valueList->current();
- if (value && value->id == CSSValueSpan) {
- hasSeenSpanKeyword = true;
- m_valueList->next();
- }
- }
-
- // Check that we have consumed all the value list. For shorthands, the parser will pass
- // the whole value list (including the opposite position).
- if (m_valueList->current() && !isForwardSlashOperator(*m_valueList->current()))
- return nullptr;
-
- // If we didn't parse anything, this is not a valid grid position.
- if (!hasSeenSpanKeyword && !gridLineName && !numericValue)
- return nullptr;
-
- // If we have "span" keyword alone is invalid.
- if (hasSeenSpanKeyword && !gridLineName && !numericValue)
- return nullptr;
-
- // Negative numbers are not allowed for span (but are for <integer>).
- if (hasSeenSpanKeyword && numericValue && numericValue->getIntValue() < 0)
- return nullptr;
-
- // For the <custom-ident> case.
- if (gridLineName && !numericValue && !hasSeenSpanKeyword)
- return CSSValuePool::singleton().createValue(gridLineName->getStringValue(), CSSPrimitiveValue::CSS_STRING);
-
- auto values = CSSValueList::createSpaceSeparated();
- if (hasSeenSpanKeyword)
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueSpan));
- if (numericValue)
- values->append(numericValue.releaseNonNull());
- if (gridLineName)
- values->append(gridLineName.releaseNonNull());
- ASSERT(values->length());
- return WTFMove(values);
-}
-
-static Ref<CSSValue> gridMissingGridPositionValue(CSSValue& value)
-{
- if (is<CSSPrimitiveValue>(value) && downcast<CSSPrimitiveValue>(value).isString())
- return value;
-
- return CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
-}
-
-bool CSSParser::parseGridItemPositionShorthand(CSSPropertyID shorthandId, bool important)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- ShorthandScope scope(this, shorthandId);
- const StylePropertyShorthand& shorthand = shorthandForProperty(shorthandId);
- ASSERT(shorthand.length() == 2);
-
- RefPtr<CSSValue> startValue = parseGridPosition();
- if (!startValue)
- return false;
-
- RefPtr<CSSValue> endValue;
- if (m_valueList->current()) {
- if (!isForwardSlashOperator(*m_valueList->current()))
- return false;
-
- if (!m_valueList->next())
- return false;
-
- endValue = parseGridPosition();
- if (!endValue || m_valueList->current())
- return false;
- } else
- endValue = gridMissingGridPositionValue(*startValue);
-
- addProperty(shorthand.properties()[0], startValue.releaseNonNull(), important);
- addProperty(shorthand.properties()[1], endValue.releaseNonNull(), important);
- return true;
-}
-
-bool CSSParser::parseGridGapShorthand(bool important)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- ShorthandScope scope(this, CSSPropertyGridGap);
- ASSERT(shorthandForProperty(CSSPropertyGridGap).length() == 2);
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- ValueWithCalculation rowValueWithCalculation(*value);
- if (!validateUnit(rowValueWithCalculation, FLength | FNonNeg))
- return false;
-
- auto rowGap = createPrimitiveNumericValue(rowValueWithCalculation);
-
- value = m_valueList->next();
- if (!value) {
- addProperty(CSSPropertyGridColumnGap, rowGap.copyRef(), important);
- addProperty(CSSPropertyGridRowGap, WTFMove(rowGap), important);
- return true;
- }
-
- ValueWithCalculation columnValueWithCalculation(*value);
- if (!validateUnit(columnValueWithCalculation, FLength | FNonNeg))
- return false;
-
- if (m_valueList->next())
- return false;
-
- auto columnGap = createPrimitiveNumericValue(columnValueWithCalculation);
-
- addProperty(CSSPropertyGridRowGap, WTFMove(rowGap), important);
- addProperty(CSSPropertyGridColumnGap, WTFMove(columnGap), important);
-
- return true;
-}
-
-RefPtr<CSSValue> CSSParser::parseGridTemplateColumns(TrackListType trackListType)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- if (!(m_valueList->current() && isForwardSlashOperator(*m_valueList->current()) && m_valueList->next()))
- return nullptr;
- if (auto columnsValue = parseGridTrackList(trackListType)) {
- if (m_valueList->current())
- return nullptr;
- return columnsValue;
- }
-
- return nullptr;
-}
-
-bool CSSParser::parseGridTemplateRowsAndAreasAndColumns(bool important)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- // At least template-areas strings must be defined.
- if (!m_valueList->current() || isForwardSlashOperator(*m_valueList->current()))
- return false;
-
- NamedGridAreaMap gridAreaMap;
- unsigned rowCount = 0;
- unsigned columnCount = 0;
- bool trailingIdentWasAdded = false;
- auto templateRows = CSSValueList::createSpaceSeparated();
-
- while (m_valueList->current() && !isForwardSlashOperator(*m_valueList->current())) {
- // Handle leading <custom-ident>*.
- if (m_valueList->current()->unit == CSSParserValue::ValueList) {
- if (trailingIdentWasAdded) {
- // A row's trailing ident must be concatenated with the next row's leading one.
- parseGridLineNames(*m_valueList, templateRows, downcast<CSSGridLineNamesValue>(templateRows->item(templateRows->length() - 1)));
- } else
- parseGridLineNames(*m_valueList, templateRows);
- }
-
- // Handle a template-area's row.
- if (!parseGridTemplateAreasRow(gridAreaMap, rowCount, columnCount))
- return false;
- ++rowCount;
-
- // Handle template-rows's track-size.
- if (m_valueList->current() && m_valueList->current()->unit != CSSParserValue::Operator && m_valueList->current()->unit != CSSParserValue::ValueList && m_valueList->current()->unit != CSSPrimitiveValue::CSS_STRING) {
- RefPtr<CSSValue> value = parseGridTrackSize(*m_valueList);
- if (!value)
- return false;
- templateRows->append(value.releaseNonNull());
- } else
- templateRows->append(CSSValuePool::singleton().createIdentifierValue(CSSValueAuto));
-
- // This will handle the trailing/leading <custom-ident>* in the grammar.
- trailingIdentWasAdded = false;
- if (m_valueList->current() && m_valueList->current()->unit == CSSParserValue::ValueList)
- trailingIdentWasAdded = parseGridLineNames(*m_valueList, templateRows);
- }
-
- // [/ <explicit-track-list> ]?
- RefPtr<CSSValue> templateColumns;
- if (m_valueList->current()) {
- ASSERT(isForwardSlashOperator(*m_valueList->current()));
- templateColumns = parseGridTemplateColumns(GridTemplateNoRepeat);
- if (!templateColumns)
- return false;
- // The template-columns <track-list> can't be 'none'.
- if (templateColumns->isPrimitiveValue() && downcast<CSSPrimitiveValue>(*templateColumns).getValueID() == CSSValueNone)
- return false;
- }
-
- addProperty(CSSPropertyGridTemplateRows, WTFMove(templateRows), important);
- if (templateColumns)
- addProperty(CSSPropertyGridTemplateColumns, templateColumns.releaseNonNull(), important);
- else
- addProperty(CSSPropertyGridTemplateColumns, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- addProperty(CSSPropertyGridTemplateAreas, CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount), important);
-
- return true;
-}
-
-bool CSSParser::parseGridTemplateShorthand(bool important)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- ShorthandScope scope(this, CSSPropertyGridTemplate);
- ASSERT(shorthandForProperty(CSSPropertyGridTemplate).length() == 3);
-
- // At least "none" must be defined.
- if (!m_valueList->current())
- return false;
-
- bool firstValueIsNone = m_valueList->current()->id == CSSValueNone;
-
- // 1- 'none' case.
- if (firstValueIsNone && !m_valueList->next()) {
- addProperty(CSSPropertyGridTemplateColumns, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- addProperty(CSSPropertyGridTemplateRows, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- addProperty(CSSPropertyGridTemplateAreas, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- return true;
- }
-
- // 2- <grid-template-rows> / <grid-template-columns> syntax.
- RefPtr<CSSValue> rowsValue;
- if (firstValueIsNone)
- rowsValue = CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
- else
- rowsValue = parseGridTrackList(GridTemplate);
-
- if (rowsValue) {
- auto columnsValue = parseGridTemplateColumns();
- if (!columnsValue)
- return false;
-
- addProperty(CSSPropertyGridTemplateColumns, columnsValue.releaseNonNull(), important);
- addProperty(CSSPropertyGridTemplateRows, rowsValue.releaseNonNull(), important);
- addProperty(CSSPropertyGridTemplateAreas, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- return true;
- }
-
-
- // 3- [<line-names>? <string> <track-size>? <line-names>? ]+ syntax.
- // It requires to rewind parsing due to previous syntax failures.
- m_valueList->setCurrentIndex(0);
- return parseGridTemplateRowsAndAreasAndColumns(important);
-}
-
-bool CSSParser::parseGridShorthand(bool important)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- ShorthandScope scope(this, CSSPropertyGrid);
- ASSERT(shorthandForProperty(CSSPropertyGrid).length() == 8);
-
- // 1- <grid-template>
- if (parseGridTemplateShorthand(important)) {
- // It can only be specified the explicit or the implicit grid properties in a single grid declaration.
- // The sub-properties not specified are set to their initial value, as normal for shorthands.
- addProperty(CSSPropertyGridAutoFlow, CSSValuePool::singleton().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridAutoColumns, CSSValuePool::singleton().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridAutoRows, CSSValuePool::singleton().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridColumnGap, CSSValuePool::singleton().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridRowGap, CSSValuePool::singleton().createImplicitInitialValue(), important);
- return true;
- }
-
- // Need to rewind parsing to explore the alternative syntax of this shorthand.
- m_valueList->setCurrentIndex(0);
-
- // 2- <grid-auto-flow> [ <grid-auto-columns> [ / <grid-auto-rows> ]? ]
- if (!parseValue(CSSPropertyGridAutoFlow, important))
- return false;
-
- RefPtr<CSSValue> autoColumnsValue;
- RefPtr<CSSValue> autoRowsValue;
-
- if (m_valueList->current()) {
- autoRowsValue = parseGridTrackList(GridAuto);
- if (!autoRowsValue)
- return false;
- if (m_valueList->current()) {
- if (!isForwardSlashOperator(*m_valueList->current()) || !m_valueList->next())
- return false;
- autoColumnsValue = parseGridTrackList(GridAuto);
- if (!autoColumnsValue)
- return false;
- }
- if (m_valueList->current())
- return false;
- } else {
- // Other omitted values are set to their initial values.
- autoColumnsValue = CSSValuePool::singleton().createImplicitInitialValue();
- autoRowsValue = CSSValuePool::singleton().createImplicitInitialValue();
- }
-
- // if <grid-auto-rows> value is omitted, it is set to the value specified for grid-auto-columns.
- if (!autoColumnsValue)
- autoColumnsValue = autoRowsValue;
-
- addProperty(CSSPropertyGridAutoColumns, autoColumnsValue.releaseNonNull(), important);
- addProperty(CSSPropertyGridAutoRows, autoRowsValue.releaseNonNull(), important);
-
- // It can only be specified the explicit or the implicit grid properties in a single grid declaration.
- // The sub-properties not specified are set to their initial value, as normal for shorthands.
- addProperty(CSSPropertyGridTemplateColumns, CSSValuePool::singleton().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridTemplateRows, CSSValuePool::singleton().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridTemplateAreas, CSSValuePool::singleton().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridColumnGap, CSSValuePool::singleton().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridRowGap, CSSValuePool::singleton().createImplicitInitialValue(), important);
-
- return true;
-}
-
-bool CSSParser::parseGridAreaShorthand(bool important)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- ShorthandScope scope(this, CSSPropertyGridArea);
- ASSERT(shorthandForProperty(CSSPropertyGridArea).length() == 4);
-
- RefPtr<CSSValue> rowStartValue = parseGridPosition();
- if (!rowStartValue)
- return false;
-
- RefPtr<CSSValue> columnStartValue;
- if (!parseSingleGridAreaLonghand(columnStartValue))
- return false;
-
- RefPtr<CSSValue> rowEndValue;
- if (!parseSingleGridAreaLonghand(rowEndValue))
- return false;
-
- RefPtr<CSSValue> columnEndValue;
- if (!parseSingleGridAreaLonghand(columnEndValue))
- return false;
-
- if (!columnStartValue)
- columnStartValue = gridMissingGridPositionValue(*rowStartValue);
-
- if (!rowEndValue)
- rowEndValue = gridMissingGridPositionValue(*rowStartValue);
-
- if (!columnEndValue)
- columnEndValue = gridMissingGridPositionValue(*columnStartValue);
-
- addProperty(CSSPropertyGridRowStart, rowStartValue.releaseNonNull(), important);
- addProperty(CSSPropertyGridColumnStart, columnStartValue.releaseNonNull(), important);
- addProperty(CSSPropertyGridRowEnd, rowEndValue.releaseNonNull(), important);
- addProperty(CSSPropertyGridColumnEnd, columnEndValue.releaseNonNull(), important);
- return true;
-}
-
-bool CSSParser::parseSingleGridAreaLonghand(RefPtr<CSSValue>& property)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- if (!m_valueList->current())
- return true;
-
- if (!isForwardSlashOperator(*m_valueList->current()))
- return false;
-
- if (!m_valueList->next())
- return false;
-
- property = parseGridPosition();
- return true;
-}
-
-bool CSSParser::parseGridLineNames(CSSParserValueList& inputList, CSSValueList& valueList, CSSGridLineNamesValue* previousNamedAreaTrailingLineNames)
-{
- ASSERT(isCSSGridLayoutEnabled());
- ASSERT(inputList.current() && inputList.current()->unit == CSSParserValue::ValueList);
-
- CSSParserValueList& identList = *inputList.current()->valueList;
- if (!identList.size()) {
- inputList.next();
- return false;
- }
-
- // Need to ensure the identList is at the heading index, since the parserList might have been rewound.
- identList.setCurrentIndex(0);
- Ref<CSSGridLineNamesValue> lineNames = previousNamedAreaTrailingLineNames ? Ref<CSSGridLineNamesValue>(*previousNamedAreaTrailingLineNames) : CSSGridLineNamesValue::create();
- while (CSSParserValue* identValue = identList.current()) {
- ASSERT(identValue->unit == CSSPrimitiveValue::CSS_IDENT);
- lineNames->append(createPrimitiveStringValue(*identValue));
- identList.next();
- }
- if (!previousNamedAreaTrailingLineNames)
- valueList.append(WTFMove(lineNames));
-
- inputList.next();
- return true;
-}
-
-static bool isGridTrackFixedSized(const CSSPrimitiveValue& value)
-{
- CSSValueID valueID = value.getValueID();
- if (valueID == CSSValueWebkitMinContent || valueID == CSSValueWebkitMaxContent || valueID == CSSValueAuto || value.isFlex())
- return false;
-
- ASSERT(value.isLength() || value.isPercentage() || value.isCalculated());
- return true;
-}
-
-static bool isGridTrackFixedSized(const CSSValue& value)
-{
- if (value.isPrimitiveValue())
- return isGridTrackFixedSized(downcast<CSSPrimitiveValue>(value));
-
- ASSERT(value.isFunctionValue());
- ASSERT(downcast<CSSFunctionValue>(value).arguments());
- ASSERT(downcast<CSSFunctionValue>(value).arguments()->length() == 2);
-
- auto& min = downcast<CSSPrimitiveValue>(*downcast<CSSFunctionValue>(value).arguments()->item(0));
- auto& max = downcast<CSSPrimitiveValue>(*downcast<CSSFunctionValue>(value).arguments()->item(1));
- return isGridTrackFixedSized(min) || isGridTrackFixedSized(max);
-}
-
-RefPtr<CSSValue> CSSParser::parseGridTrackList(TrackListType trackListType)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueNone) {
- if (trackListType == GridAuto)
- return nullptr;
- m_valueList->next();
- return CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
- }
-
- auto values = CSSValueList::createSpaceSeparated();
- // Handle leading <custom-ident>*.
- value = m_valueList->current();
- bool allowGridLineNames = trackListType != GridAuto;
- if (value && value->unit == CSSParserValue::ValueList) {
- if (!allowGridLineNames)
- return nullptr;
- parseGridLineNames(*m_valueList, values);
- }
-
- bool seenTrackSizeOrRepeatFunction = false;
- bool seenAutoRepeat = false;
- bool allTracksAreFixedSized = true;
- bool repeatAllowed = trackListType == GridTemplate;
- while (CSSParserValue* currentValue = m_valueList->current()) {
- if (isForwardSlashOperator(*currentValue))
- break;
- if (currentValue->unit == CSSParserValue::Function && equalLettersIgnoringASCIICase(currentValue->function->name, "repeat(")) {
- if (!repeatAllowed)
- return nullptr;
- bool isAutoRepeat;
- if (!parseGridTrackRepeatFunction(values, isAutoRepeat, allTracksAreFixedSized))
- return nullptr;
- if (isAutoRepeat && seenAutoRepeat)
- return nullptr;
- seenAutoRepeat = seenAutoRepeat || isAutoRepeat;
- } else {
- RefPtr<CSSValue> value = parseGridTrackSize(*m_valueList);
- if (!value)
- return nullptr;
-
- allTracksAreFixedSized = allTracksAreFixedSized && isGridTrackFixedSized(*value);
- values->append(value.releaseNonNull());
- }
- seenTrackSizeOrRepeatFunction = true;
-
- if (seenAutoRepeat && !allTracksAreFixedSized)
- return nullptr;
-
- // This will handle the trailing <custom-ident>* in the grammar.
- value = m_valueList->current();
- if (value && value->unit == CSSParserValue::ValueList) {
- if (!allowGridLineNames)
- return nullptr;
- parseGridLineNames(*m_valueList, values);
- }
- }
-
- if (!seenTrackSizeOrRepeatFunction)
- return nullptr;
-
- return WTFMove(values);
-}
-
-bool CSSParser::parseGridTrackRepeatFunction(CSSValueList& list, bool& isAutoRepeat, bool& allTracksAreFixedSized)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- CSSParserValueList* arguments = m_valueList->current()->function->args.get();
- if (!arguments || arguments->size() < 3 || !isComma(arguments->valueAt(1)))
- return false;
-
- ValueWithCalculation firstValueWithCalculation(*arguments->valueAt(0));
- CSSValueID firstValueID = firstValueWithCalculation.value().id;
- isAutoRepeat = firstValueID == CSSValueAutoFill || firstValueID == CSSValueAutoFit;
- if (!isAutoRepeat && !validateUnit(firstValueWithCalculation, FPositiveInteger))
- return false;
-
- // If arguments->valueAt(0)->fValue > SIZE_MAX then repetitions becomes 0 during the type casting, that's why we
- // clamp it down to kGridMaxTracks before the type casting.
- // The number of repetitions for <auto-repeat> is not important at parsing level
- // because it will be computed later, let's set it to 1.
- unsigned repetitions = isAutoRepeat ? 1 : clampTo<unsigned>(parsedDouble(firstValueWithCalculation), 0, kGridMaxTracks);
-
- Ref<CSSValueList> repeatedValues = isAutoRepeat ? Ref<CSSValueList>(CSSGridAutoRepeatValue::create(firstValueID)) : CSSValueList::createSpaceSeparated();
- arguments->next(); // Skip the repetition count.
- arguments->next(); // Skip the comma.
-
- // Handle leading <custom-ident>*.
- CSSParserValue* currentValue = arguments->current();
- if (currentValue && currentValue->unit == CSSParserValue::ValueList)
- parseGridLineNames(*arguments, repeatedValues);
-
- unsigned numberOfTracks = 0;
- while (arguments->current()) {
- RefPtr<CSSValue> trackSize = parseGridTrackSize(*arguments);
- if (!trackSize)
- return false;
-
- allTracksAreFixedSized = allTracksAreFixedSized && isGridTrackFixedSized(*trackSize);
- repeatedValues->append(trackSize.releaseNonNull());
- ++numberOfTracks;
-
- // This takes care of any trailing <custom-ident>* in the grammar.
- currentValue = arguments->current();
- if (currentValue && currentValue->unit == CSSParserValue::ValueList)
- parseGridLineNames(*arguments, repeatedValues);
- }
-
- // We should have found at least one <track-size>, otherwise the declaration is invalid.
- if (!numberOfTracks)
- return false;
-
- // We clamp the number of repetitions to a multiple of the repeat() track list's size, while staying below the max
- // grid size.
- repetitions = std::min(repetitions, kGridMaxTracks / numberOfTracks);
-
- if (isAutoRepeat)
- list.append(WTFMove(repeatedValues));
- else {
- for (unsigned i = 0; i < repetitions; ++i) {
- for (unsigned j = 0; j < repeatedValues->length(); ++j)
- list.append(*repeatedValues->itemWithoutBoundsCheck(j));
- }
- }
-
- m_valueList->next();
- return true;
-}
-
-RefPtr<CSSValue> CSSParser::parseGridTrackSize(CSSParserValueList& inputList)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- CSSParserValue& currentValue = *inputList.current();
- inputList.next();
-
- if (currentValue.id == CSSValueAuto)
- return CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
-
- if (currentValue.unit == CSSParserValue::Function && equalLettersIgnoringASCIICase(currentValue.function->name, "minmax(")) {
- // The spec defines the following grammar: minmax( <track-breadth> , <track-breadth> )
- CSSParserValueList* arguments = currentValue.function->args.get();
- if (!arguments || arguments->size() != 3 || !isComma(arguments->valueAt(1)))
- return nullptr;
-
- RefPtr<CSSPrimitiveValue> minTrackBreadth = parseGridBreadth(*arguments->valueAt(0));
- if (!minTrackBreadth || minTrackBreadth->isFlex())
- return nullptr;
-
- RefPtr<CSSPrimitiveValue> maxTrackBreadth = parseGridBreadth(*arguments->valueAt(2));
- if (!maxTrackBreadth)
- return nullptr;
-
- auto parsedArguments = CSSValueList::createCommaSeparated();
- parsedArguments->append(minTrackBreadth.releaseNonNull());
- parsedArguments->append(maxTrackBreadth.releaseNonNull());
- return CSSFunctionValue::create("minmax(", WTFMove(parsedArguments));
- }
-
- return parseGridBreadth(currentValue);
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseGridBreadth(CSSParserValue& value)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- if (value.id == CSSValueWebkitMinContent || value.id == CSSValueWebkitMaxContent || value.id == CSSValueAuto)
- return CSSValuePool::singleton().createIdentifierValue(value.id);
-
- if (value.unit == CSSPrimitiveValue::CSS_FR) {
- double flexValue = value.fValue;
-
- // Fractional unit is a non-negative dimension.
- if (flexValue <= 0)
- return nullptr;
-
- return CSSValuePool::singleton().createValue(flexValue, CSSPrimitiveValue::CSS_FR);
- }
-
- ValueWithCalculation valueWithCalculation(value);
- if (!validateUnit(valueWithCalculation, FNonNeg | FLength | FPercent))
- return nullptr;
-
- return createPrimitiveNumericValue(valueWithCalculation);
-}
-
-static inline bool isValidGridAutoFlowId(CSSValueID id)
-{
- return (id == CSSValueRow || id == CSSValueColumn || id == CSSValueDense);
-}
-
-RefPtr<CSSValue> CSSParser::parseGridAutoFlow(CSSParserValueList& inputList)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- // [ row | column ] || dense
- CSSParserValue* value = inputList.current();
- if (!value)
- return nullptr;
-
- auto parsedValues = CSSValueList::createSpaceSeparated();
-
- // First parameter.
- CSSValueID firstId = value->id;
- if (!isValidGridAutoFlowId(firstId))
- return nullptr;
-
- // Second parameter, if any.
- // If second parameter is not valid we should process anyway the first one as we can be inside the "grid" shorthand.
- value = inputList.next();
- if (!value || !isValidGridAutoFlowId(value->id)) {
- if (firstId == CSSValueDense)
- parsedValues->append(CSSValuePool::singleton().createIdentifierValue(CSSValueRow));
-
- parsedValues->append(CSSValuePool::singleton().createIdentifierValue(firstId));
- return WTFMove(parsedValues);
- }
-
- switch (firstId) {
- case CSSValueRow:
- case CSSValueColumn:
- parsedValues->append(CSSValuePool::singleton().createIdentifierValue(firstId));
- if (value->id == CSSValueDense) {
- parsedValues->append(CSSValuePool::singleton().createIdentifierValue(value->id));
- inputList.next();
- }
- break;
- case CSSValueDense:
- if (value->id == CSSValueRow || value->id == CSSValueColumn) {
- parsedValues->append(CSSValuePool::singleton().createIdentifierValue(value->id));
- inputList.next();
- }
- parsedValues->append(CSSValuePool::singleton().createIdentifierValue(firstId));
- break;
- default:
- ASSERT_NOT_REACHED();
- break;
- }
-
- return WTFMove(parsedValues);
-}
-#endif /* ENABLE(CSS_GRID_LAYOUT) */
-
-#if ENABLE(DASHBOARD_SUPPORT)
-
-static const int dashboardRegionParameterCount = 6;
-static const int dashboardRegionShortParameterCount = 2;
-
-static CSSParserValue* skipCommaInDashboardRegion(CSSParserValueList *args)
-{
- if (args->size() == (dashboardRegionParameterCount * 2 - 1) || args->size() == (dashboardRegionShortParameterCount * 2 - 1)) {
- CSSParserValue& current = *args->current();
- if (current.unit == CSSParserValue::Operator && current.iValue == ',')
- return args->next();
- }
- return args->current();
-}
-
-bool CSSParser::parseDashboardRegions(CSSPropertyID propId, bool important)
-{
- bool valid = true;
-
- CSSParserValue* value = m_valueList->current();
-
- if (value->id == CSSValueNone) {
- if (m_valueList->next())
- return false;
- addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
- return valid;
- }
-
- auto firstRegion = DashboardRegion::create();
- DashboardRegion* region = nullptr;
-
- while (value) {
- if (!region) {
- region = firstRegion.ptr();
- } else {
- auto nextRegion = DashboardRegion::create();
- region->m_next = nextRegion.copyRef();
- region = nextRegion.ptr();
- }
-
- if (value->unit != CSSParserValue::Function) {
- valid = false;
- break;
- }
-
- // Commas count as values, so allow (function name is dashboard-region for DASHBOARD_SUPPORT feature):
- // dashboard-region(label, type, t, r, b, l) or dashboard-region(label type t r b l)
- // dashboard-region(label, type, t, r, b, l) or dashboard-region(label type t r b l)
- // also allow
- // dashboard-region(label, type) or dashboard-region(label type)
- // dashboard-region(label, type) or dashboard-region(label type)
- CSSParserValueList* args = value->function->args.get();
- if (!equalLettersIgnoringASCIICase(value->function->name, "dashboard-region(") || !args) {
- valid = false;
- break;
- }
-
- int numArgs = args->size();
- if ((numArgs != dashboardRegionParameterCount && numArgs != (dashboardRegionParameterCount*2-1))
- && (numArgs != dashboardRegionShortParameterCount && numArgs != (dashboardRegionShortParameterCount*2-1))) {
- valid = false;
- break;
- }
-
- // First arg is a label.
- CSSParserValue* arg = args->current();
- if (arg->unit != CSSPrimitiveValue::CSS_IDENT) {
- valid = false;
- break;
- }
-
- region->m_label = arg->string;
-
- // Second arg is a type.
- arg = args->next();
- arg = skipCommaInDashboardRegion(args);
- if (arg->unit != CSSPrimitiveValue::CSS_IDENT) {
- valid = false;
- break;
- }
-
- if (equalLettersIgnoringASCIICase(*arg, "circle"))
- region->m_isCircle = true;
- else if (equalLettersIgnoringASCIICase(*arg, "rectangle"))
- region->m_isRectangle = true;
- else {
- valid = false;
- break;
- }
-
- region->m_geometryType = arg->string;
-
- if (numArgs == dashboardRegionShortParameterCount || numArgs == (dashboardRegionShortParameterCount*2-1)) {
- // This originally used CSSValueInvalid by accident. It might be more logical to use something else.
- RefPtr<CSSPrimitiveValue> amount = CSSValuePool::singleton().createIdentifierValue(CSSValueInvalid);
-
- region->setTop(amount.copyRef());
- region->setRight(amount.copyRef());
- region->setBottom(amount.copyRef());
- region->setLeft(WTFMove(amount));
- } else {
- // Next four arguments must be offset numbers
- for (int i = 0; i < 4; ++i) {
- arg = args->next();
- arg = skipCommaInDashboardRegion(args);
-
- ValueWithCalculation argWithCalculation(*arg);
- valid = arg->id == CSSValueAuto || validateUnit(argWithCalculation, FLength);
- if (!valid)
- break;
-
- RefPtr<CSSPrimitiveValue> amount = arg->id == CSSValueAuto ? CSSValuePool::singleton().createIdentifierValue(CSSValueAuto) : createPrimitiveNumericValue(argWithCalculation);
-
- if (i == 0)
- region->setTop(WTFMove(amount));
- else if (i == 1)
- region->setRight(WTFMove(amount));
- else if (i == 2)
- region->setBottom(WTFMove(amount));
- else
- region->setLeft(WTFMove(amount));
- }
- }
-
- if (args->next())
- return false;
-
- value = m_valueList->next();
- }
-
- if (valid)
- addProperty(propId, CSSValuePool::singleton().createValue(RefPtr<DashboardRegion>(WTFMove(firstRegion))), important);
-
- return valid;
-}
-
-#endif /* ENABLE(DASHBOARD_SUPPORT) */
-
-#if ENABLE(CSS_GRID_LAYOUT)
-static Vector<String> parseGridTemplateAreasColumnNames(const String& gridRowNames)
-{
- ASSERT(!gridRowNames.isEmpty());
- Vector<String> columnNames;
- // Using StringImpl to avoid checks and indirection in every call to String::operator[].
- StringImpl& text = *gridRowNames.impl();
- unsigned length = text.length();
- unsigned index = 0;
- while (index < length) {
- if (text[index] != ' ' && text[index] != '.') {
- unsigned gridAreaStart = index;
- while (index < length && text[index] != ' ' && text[index] != '.')
- ++index;
- columnNames.append(text.substring(gridAreaStart, index - gridAreaStart));
- continue;
- }
-
- if (text[index] == '.') {
- while (index < length && text[index] == '.')
- ++index;
- columnNames.append(".");
- continue;
- }
-
- ++index;
- }
-
- return columnNames;
-}
-
-bool CSSParser::parseGridTemplateAreasRow(NamedGridAreaMap& gridAreaMap, const unsigned rowCount, unsigned& columnCount)
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- CSSParserValue* currentValue = m_valueList->current();
- if (!currentValue || currentValue->unit != CSSPrimitiveValue::CSS_STRING)
- return false;
-
- String gridRowNames = currentValue->string;
- if (gridRowNames.containsOnlyWhitespace())
- return false;
-
- Vector<String> columnNames = parseGridTemplateAreasColumnNames(gridRowNames);
- if (!columnCount) {
- columnCount = columnNames.size();
- ASSERT(columnCount);
- } else if (columnCount != columnNames.size()) {
- // The declaration is invalid is all the rows don't have the number of columns.
- return false;
- }
-
- for (unsigned currentColumn = 0; currentColumn < columnCount; ++currentColumn) {
- const String& gridAreaName = columnNames[currentColumn];
-
- // Unamed areas are always valid (we consider them to be 1x1).
- if (gridAreaName == ".")
- continue;
-
- // We handle several grid areas with the same name at once to simplify the validation code.
- unsigned lookAheadColumn;
- for (lookAheadColumn = currentColumn + 1; lookAheadColumn < columnCount; ++lookAheadColumn) {
- if (columnNames[lookAheadColumn] != gridAreaName)
- break;
- }
-
- auto gridAreaIterator = gridAreaMap.find(gridAreaName);
- if (gridAreaIterator == gridAreaMap.end())
- gridAreaMap.add(gridAreaName, GridArea(GridSpan::translatedDefiniteGridSpan(rowCount, rowCount + 1), GridSpan::translatedDefiniteGridSpan(currentColumn, lookAheadColumn)));
- else {
- GridArea& gridArea = gridAreaIterator->value;
-
- // The following checks test that the grid area is a single filled-in rectangle.
- // 1. The new row is adjacent to the previously parsed row.
- if (rowCount != gridArea.rows.endLine())
- return false;
-
- // 2. The new area starts at the same position as the previously parsed area.
- if (currentColumn != gridArea.columns.startLine())
- return false;
-
- // 3. The new area ends at the same position as the previously parsed area.
- if (lookAheadColumn != gridArea.columns.endLine())
- return false;
-
- gridArea.rows = GridSpan::translatedDefiniteGridSpan(gridArea.rows.startLine(), gridArea.rows.endLine() + 1);
- }
- currentColumn = lookAheadColumn - 1;
- }
-
- m_valueList->next();
- return true;
-}
-
-RefPtr<CSSValue> CSSParser::parseGridTemplateAreas()
-{
- ASSERT(isCSSGridLayoutEnabled());
-
- if (m_valueList->current() && m_valueList->current()->id == CSSValueNone) {
- m_valueList->next();
- return CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
- }
-
- NamedGridAreaMap gridAreaMap;
- unsigned rowCount = 0;
- unsigned columnCount = 0;
-
- while (m_valueList->current()) {
- if (!parseGridTemplateAreasRow(gridAreaMap, rowCount, columnCount))
- return nullptr;
- ++rowCount;
- }
-
- if (!rowCount || !columnCount)
- return nullptr;
-
- return CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount);
-}
-#endif /* ENABLE(CSS_GRID_LAYOUT) */
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseCounterContent(CSSParserValueList& args, bool counters)
-{
- unsigned numArgs = args.size();
- if (counters && numArgs != 3 && numArgs != 5)
- return nullptr;
- if (!counters && numArgs != 1 && numArgs != 3)
- return nullptr;
-
- CSSParserValue* argument = args.current();
- if (argument->unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
- auto identifier = createPrimitiveStringValue(*argument);
-
- RefPtr<CSSPrimitiveValue> separator;
- if (!counters)
- separator = CSSValuePool::singleton().createValue(String(), CSSPrimitiveValue::CSS_STRING);
- else {
- argument = args.next();
- if (argument->unit != CSSParserValue::Operator || argument->iValue != ',')
- return nullptr;
-
- argument = args.next();
- if (argument->unit != CSSPrimitiveValue::CSS_STRING)
- return nullptr;
-
- separator = createPrimitiveStringValue(*argument);
- }
-
- RefPtr<CSSPrimitiveValue> listStyle;
- argument = args.next();
- if (!argument) // Make the list style default decimal
- listStyle = CSSValuePool::singleton().createIdentifierValue(CSSValueDecimal);
- else {
- if (argument->unit != CSSParserValue::Operator || argument->iValue != ',')
- return nullptr;
-
- argument = args.next();
- if (argument->unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
-
- CSSValueID listStyleID = CSSValueInvalid;
- if (argument->id == CSSValueNone || (argument->id >= CSSValueDisc && argument->id <= CSSValueKatakanaIroha))
- listStyleID = argument->id;
- else
- return nullptr;
-
- listStyle = CSSValuePool::singleton().createIdentifierValue(listStyleID);
- }
-
- return CSSValuePool::singleton().createValue(Counter::create(WTFMove(identifier), listStyle.releaseNonNull(), separator.releaseNonNull()));
-}
-
-bool CSSParser::parseClipShape(CSSPropertyID propId, bool important)
-{
- CSSParserValue& value = *m_valueList->current();
- CSSParserValueList* args = value.function->args.get();
-
- if (!equalLettersIgnoringASCIICase(value.function->name, "rect(") || !args)
- return false;
-
- // rect(t, r, b, l) || rect(t r b l)
- if (args->size() != 4 && args->size() != 7)
- return false;
- auto rect = Rect::create();
- bool valid = true;
- int i = 0;
- CSSParserValue* argument = args->current();
- while (argument) {
- ValueWithCalculation argumentWithCalculation(*argument);
- valid = argument->id == CSSValueAuto || validateUnit(argumentWithCalculation, FLength);
- if (!valid)
- break;
- Ref<CSSPrimitiveValue> length = argument->id == CSSValueAuto ? CSSValuePool::singleton().createIdentifierValue(CSSValueAuto) : createPrimitiveNumericValue(argumentWithCalculation);
- if (i == 0)
- rect->setTop(WTFMove(length));
- else if (i == 1)
- rect->setRight(WTFMove(length));
- else if (i == 2)
- rect->setBottom(WTFMove(length));
- else
- rect->setLeft(WTFMove(length));
- argument = args->next();
- if (argument && args->size() == 7) {
- if (argument->unit == CSSParserValue::Operator && argument->iValue == ',') {
- argument = args->next();
- } else {
- valid = false;
- break;
- }
- }
- i++;
- }
- if (valid) {
- addProperty(propId, CSSValuePool::singleton().createValue(WTFMove(rect)), important);
- m_valueList->next();
- return true;
- }
- return false;
-}
-
-static void completeBorderRadii(RefPtr<CSSPrimitiveValue> radii[4])
-{
- if (radii[3])
- return;
- if (!radii[2]) {
- if (!radii[1])
- radii[1] = radii[0];
- radii[2] = radii[0];
- }
- radii[3] = radii[1];
-}
-
-// FIXME: This should be refactored with CSSParser::parseBorderRadius.
-// CSSParser::parseBorderRadius contains support for some legacy radius construction.
-RefPtr<CSSBasicShapeInset> CSSParser::parseInsetRoundedCorners(Ref<CSSBasicShapeInset>&& shape, CSSParserValueList& args)
-{
- CSSParserValue* argument = args.next();
-
- if (!argument)
- return nullptr;
-
- Vector<CSSParserValue*> radiusArguments;
- while (argument) {
- radiusArguments.append(argument);
- argument = args.next();
- }
-
- unsigned num = radiusArguments.size();
- if (!num || num > 9)
- return nullptr;
-
- RefPtr<CSSPrimitiveValue> radii[2][4];
-
- unsigned indexAfterSlash = 0;
- for (unsigned i = 0; i < num; ++i) {
- CSSParserValue& value = *radiusArguments.at(i);
- if (value.unit == CSSParserValue::Operator) {
- if (value.iValue != '/')
- return nullptr;
-
- if (!i || indexAfterSlash || i + 1 == num || num > i + 5)
- return nullptr;
-
- indexAfterSlash = i + 1;
- completeBorderRadii(radii[0]);
- continue;
- }
-
- if (i - indexAfterSlash >= 4)
- return nullptr;
-
- ValueWithCalculation valueWithCalculation(value);
- if (!validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg))
- return nullptr;
-
- auto radius = createPrimitiveNumericValue(valueWithCalculation);
-
- if (!indexAfterSlash)
- radii[0][i] = WTFMove(radius);
- else
- radii[1][i - indexAfterSlash] = WTFMove(radius);
- }
-
- if (!indexAfterSlash) {
- completeBorderRadii(radii[0]);
- for (unsigned i = 0; i < 4; ++i)
- radii[1][i] = radii[0][i];
- } else
- completeBorderRadii(radii[1]);
-
- shape->setTopLeftRadius(createPrimitiveValuePair(WTFMove(radii[0][0]), WTFMove(radii[1][0])));
- shape->setTopRightRadius(createPrimitiveValuePair(WTFMove(radii[0][1]), WTFMove(radii[1][1])));
- shape->setBottomRightRadius(createPrimitiveValuePair(WTFMove(radii[0][2]), WTFMove(radii[1][2])));
- shape->setBottomLeftRadius(createPrimitiveValuePair(WTFMove(radii[0][3]), WTFMove(radii[1][3])));
-
- return WTFMove(shape);
-}
-
-RefPtr<CSSBasicShapeInset> CSSParser::parseBasicShapeInset(CSSParserValueList& args)
-{
- auto shape = CSSBasicShapeInset::create();
-
- CSSParserValue* argument = args.current();
- Vector<Ref<CSSPrimitiveValue> > widthArguments;
- bool hasRoundedInset = false;
- while (argument) {
- if (argument->unit == CSSPrimitiveValue::CSS_IDENT && equalLettersIgnoringASCIICase(argument->string, "round")) {
- hasRoundedInset = true;
- break;
- }
-
- Units unitFlags = FLength | FPercent;
- ValueWithCalculation argumentWithCalculation(*argument);
- if (!validateUnit(argumentWithCalculation, unitFlags) || widthArguments.size() > 4)
- return nullptr;
-
- widthArguments.append(createPrimitiveNumericValue(argumentWithCalculation));
- argument = args.next();
- }
-
- switch (widthArguments.size()) {
- case 1: {
- shape->updateShapeSize1Value(WTFMove(widthArguments[0]));
- break;
- }
- case 2: {
- shape->updateShapeSize2Values(WTFMove(widthArguments[0]), WTFMove(widthArguments[1]));
- break;
- }
- case 3: {
- shape->updateShapeSize3Values(WTFMove(widthArguments[0]), WTFMove(widthArguments[1]), WTFMove(widthArguments[2]));
- break;
- }
- case 4: {
- shape->updateShapeSize4Values(WTFMove(widthArguments[0]), WTFMove(widthArguments[1]), WTFMove(widthArguments[2]), WTFMove(widthArguments[3]));
- break;
- }
- default:
- return nullptr;
- }
-
- if (hasRoundedInset)
- return parseInsetRoundedCorners(WTFMove(shape), args);
- return WTFMove(shape);
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseShapeRadius(CSSParserValue& value)
-{
- if (value.id == CSSValueClosestSide || value.id == CSSValueFarthestSide)
- return CSSValuePool::singleton().createIdentifierValue(value.id);
-
- ValueWithCalculation valueWithCalculation(value);
- if (!validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg))
- return nullptr;
-
- return createPrimitiveNumericValue(valueWithCalculation);
-}
-
-RefPtr<CSSBasicShapeCircle> CSSParser::parseBasicShapeCircle(CSSParserValueList& args)
-{
- // circle(radius)
- // circle(radius at <position>)
- // circle(at <position>)
- // where position defines centerX and centerY using a CSS <position> data type.
- auto shape = CSSBasicShapeCircle::create();
-
- for (CSSParserValue* argument = args.current(); argument; argument = args.next()) {
- // The call to parseFillPosition below should consume all of the
- // arguments except the first two. Thus, and index greater than one
- // indicates an invalid production.
- if (args.currentIndex() > 1)
- return nullptr;
-
- if (!args.currentIndex() && argument->id != CSSValueAt) {
- if (RefPtr<CSSPrimitiveValue> radius = parseShapeRadius(*argument)) {
- shape->setRadius(radius.releaseNonNull());
- continue;
- }
-
- return nullptr;
- }
-
- if (argument->id == CSSValueAt && args.next()) {
- RefPtr<CSSPrimitiveValue> centerX;
- RefPtr<CSSPrimitiveValue> centerY;
- parseFillPosition(args, centerX, centerY);
- if (centerX && centerY && !args.current()) {
- shape->setCenterX(centerX.releaseNonNull());
- shape->setCenterY(centerY.releaseNonNull());
- } else
- return nullptr;
- } else
- return nullptr;
- }
-
- return WTFMove(shape);
-}
-
-RefPtr<CSSBasicShapeEllipse> CSSParser::parseBasicShapeEllipse(CSSParserValueList& args)
-{
- // ellipse(radiusX)
- // ellipse(radiusX at <position>)
- // ellipse(radiusX radiusY)
- // ellipse(radiusX radiusY at <position>)
- // ellipse(at <position>)
- // where position defines centerX and centerY using a CSS <position> data type.
- auto shape = CSSBasicShapeEllipse::create();
-
- for (CSSParserValue* argument = args.current(); argument; argument = args.next()) {
- // The call to parseFillPosition below should consume all of the
- // arguments except the first three. Thus, an index greater than two
- // indicates an invalid production.
- if (args.currentIndex() > 2)
- return nullptr;
-
- if (args.currentIndex() < 2 && argument->id != CSSValueAt) {
- if (RefPtr<CSSPrimitiveValue> radius = parseShapeRadius(*argument)) {
- if (!shape->radiusX())
- shape->setRadiusX(radius.releaseNonNull());
- else
- shape->setRadiusY(radius.releaseNonNull());
- continue;
- }
-
- return nullptr;
- }
-
- if (argument->id != CSSValueAt || !args.next()) // expecting ellipse(.. at <position>)
- return nullptr;
-
- RefPtr<CSSPrimitiveValue> centerX;
- RefPtr<CSSPrimitiveValue> centerY;
- parseFillPosition(args, centerX, centerY);
- if (!centerX || !centerY || args.current())
- return nullptr;
-
- shape->setCenterX(centerX.releaseNonNull());
- shape->setCenterY(centerY.releaseNonNull());
- }
-
- return WTFMove(shape);
-}
-
-RefPtr<CSSBasicShapePolygon> CSSParser::parseBasicShapePolygon(CSSParserValueList& args)
-{
- unsigned size = args.size();
- if (!size)
- return nullptr;
-
- auto shape = CSSBasicShapePolygon::create();
-
- CSSParserValue* argument = args.current();
- if (argument->id == CSSValueEvenodd || argument->id == CSSValueNonzero) {
- shape->setWindRule(argument->id == CSSValueEvenodd ? RULE_EVENODD : RULE_NONZERO);
-
- if (!isComma(args.next()))
- return nullptr;
-
- argument = args.next();
- size -= 2;
- }
-
- // <length> <length>, ... <length> <length> -> each pair has 3 elements except the last one
- if (!size || (size % 3) - 2)
- return nullptr;
-
- CSSParserValue* argumentX = argument;
- while (argumentX) {
-
- ValueWithCalculation argumentXWithCalculation(*argumentX);
- if (!validateUnit(argumentXWithCalculation, FLength | FPercent))
- return nullptr;
- auto xLength = createPrimitiveNumericValue(argumentXWithCalculation);
-
- CSSParserValue* argumentY = args.next();
- if (!argumentY)
- return nullptr;
- ValueWithCalculation argumentYWithCalculation(*argumentY);
- if (!validateUnit(argumentYWithCalculation, FLength | FPercent))
- return nullptr;
- auto yLength = createPrimitiveNumericValue(argumentYWithCalculation);
-
- shape->appendPoint(WTFMove(xLength), WTFMove(yLength));
-
- CSSParserValue* commaOrNull = args.next();
- if (!commaOrNull)
- argumentX = nullptr;
- else if (!isComma(commaOrNull))
- return nullptr;
- else
- argumentX = args.next();
- }
-
- return WTFMove(shape);
-}
-
-RefPtr<CSSBasicShapePath> CSSParser::parseBasicShapePath(CSSParserValueList& args)
-{
- unsigned size = args.size();
- if (size != 1 && size != 3)
- return nullptr;
-
- WindRule windRule = RULE_NONZERO;
-
- CSSParserValue* argument = args.current();
- if (argument->id == CSSValueEvenodd || argument->id == CSSValueNonzero) {
- windRule = argument->id == CSSValueEvenodd ? RULE_EVENODD : RULE_NONZERO;
-
- if (!isComma(args.next()))
- return nullptr;
- argument = args.next();
- }
-
- if (argument->unit != CSSPrimitiveValue::CSS_STRING)
- return nullptr;
-
- auto byteStream = std::make_unique<SVGPathByteStream>();
- if (!buildSVGPathByteStreamFromString(argument->string, *byteStream, UnalteredParsing))
- return nullptr;
-
- auto shape = CSSBasicShapePath::create(WTFMove(byteStream));
- shape->setWindRule(windRule);
-
- args.next();
- return WTFMove(shape);
-}
-
-static bool isBoxValue(CSSValueID valueId, CSSPropertyID propId)
-{
- switch (valueId) {
- case CSSValueContentBox:
- case CSSValuePaddingBox:
- case CSSValueBorderBox:
- case CSSValueMarginBox:
- return true;
- case CSSValueFill:
- case CSSValueStroke:
- case CSSValueViewBox:
- return propId == CSSPropertyWebkitClipPath;
- default: break;
- }
-
- return false;
-}
-
-RefPtr<CSSValueList> CSSParser::parseBasicShapeAndOrBox(CSSPropertyID propId)
-{
- CSSParserValue* value = m_valueList->current();
-
- bool shapeFound = false;
- bool boxFound = false;
- CSSValueID valueId;
-
- auto list = CSSValueList::createSpaceSeparated();
- for (unsigned i = 0; i < 2; ++i) {
- if (!value)
- break;
- valueId = value->id;
- if (value->unit == CSSParserValue::Function && !shapeFound) {
- // parseBasicShape already asks for the next value list item.
- RefPtr<CSSPrimitiveValue> shapeValue = parseBasicShape();
- if (!shapeValue)
- return nullptr;
- list->append(shapeValue.releaseNonNull());
- shapeFound = true;
- } else if (isBoxValue(valueId, propId) && !boxFound) {
- RefPtr<CSSPrimitiveValue> parsedValue = CSSValuePool::singleton().createIdentifierValue(valueId);
- list->append(parsedValue.releaseNonNull());
- boxFound = true;
- m_valueList->next();
- } else
- return nullptr;
- value = m_valueList->current();
- }
-
- if (m_valueList->current())
- return nullptr;
- return WTFMove(list);
-}
-
-#if ENABLE(CSS_SHAPES)
-RefPtr<CSSValue> CSSParser::parseShapeProperty(CSSPropertyID propId)
-{
- CSSParserValue& value = *m_valueList->current();
- CSSValueID valueId = value.id;
-
- if (valueId == CSSValueNone) {
- m_valueList->next();
- return CSSValuePool::singleton().createIdentifierValue(valueId);
- }
-
- RefPtr<CSSValue> imageValue;
- if (valueId != CSSValueNone && parseFillImage(*m_valueList, imageValue)) {
- m_valueList->next();
- return imageValue;
- }
-
- return parseBasicShapeAndOrBox(propId);
-}
-#endif
-
-RefPtr<CSSValue> CSSParser::parseClipPath()
-{
- CSSParserValue& value = *m_valueList->current();
- CSSValueID valueId = value.id;
-
- if (valueId == CSSValueNone) {
- m_valueList->next();
- return CSSValuePool::singleton().createIdentifierValue(valueId);
- }
- if (value.unit == CSSPrimitiveValue::CSS_URI) {
- m_valueList->next();
- return CSSPrimitiveValue::create(value.string, CSSPrimitiveValue::CSS_URI);
- }
-
- return parseBasicShapeAndOrBox(CSSPropertyWebkitClipPath);
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseBasicShape()
-{
- CSSParserValue& value = *m_valueList->current();
- ASSERT(value.unit == CSSParserValue::Function);
- CSSParserValueList* args = value.function->args.get();
-
- if (!args)
- return nullptr;
-
- RefPtr<CSSBasicShape> shape;
- if (equalLettersIgnoringASCIICase(value.function->name, "circle("))
- shape = parseBasicShapeCircle(*args);
- else if (equalLettersIgnoringASCIICase(value.function->name, "ellipse("))
- shape = parseBasicShapeEllipse(*args);
- else if (equalLettersIgnoringASCIICase(value.function->name, "polygon("))
- shape = parseBasicShapePolygon(*args);
- else if (equalLettersIgnoringASCIICase(value.function->name, "path("))
- shape = parseBasicShapePath(*args);
- else if (equalLettersIgnoringASCIICase(value.function->name, "inset("))
- shape = parseBasicShapeInset(*args);
-
- if (!shape)
- return nullptr;
-
- m_valueList->next();
- return CSSValuePool::singleton().createValue(shape.releaseNonNull());
-}
-
-// [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? 'font-family'
-bool CSSParser::parseFont(bool important)
-{
- // Let's check if there is an inherit or initial somewhere in the shorthand.
- for (unsigned i = 0; i < m_valueList->size(); ++i) {
- if (m_valueList->valueAt(i)->id == CSSValueInherit || m_valueList->valueAt(i)->id == CSSValueInitial)
- return false;
- }
-
- ShorthandScope scope(this, CSSPropertyFont);
- // Optional font-style, font-variant and font-weight.
- bool fontStyleParsed = false;
- bool fontVariantParsed = false;
- bool fontWeightParsed = false;
- CSSParserValue* value;
- while ((value = m_valueList->current())) {
- if (!fontStyleParsed && isValidKeywordPropertyAndValue(CSSPropertyFontStyle, value->id, m_context, m_styleSheet)) {
- addProperty(CSSPropertyFontStyle, CSSValuePool::singleton().createIdentifierValue(value->id), important);
- fontStyleParsed = true;
- } else if (!fontVariantParsed && (value->id == CSSValueNormal || value->id == CSSValueSmallCaps)) {
- // Font variant in the shorthand is particular, it only accepts normal or small-caps.
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(value->id), important);
- fontVariantParsed = true;
- } else if (!fontWeightParsed && parseFontWeight(important))
- fontWeightParsed = true;
- else
- break;
- m_valueList->next();
- }
-
- if (!value)
- return false;
-
- if (!fontStyleParsed)
- addProperty(CSSPropertyFontStyle, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
- if (!fontVariantParsed)
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
- if (!fontWeightParsed)
- addProperty(CSSPropertyFontWeight, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
-
- // Now a font size _must_ come.
- // <absolute-size> | <relative-size> | <length> | <percentage> | inherit
- if (!parseFontSize(important))
- return false;
-
- value = m_valueList->current();
- if (!value)
- return false;
-
- if (isForwardSlashOperator(*value)) {
- // The line-height property.
- value = m_valueList->next();
- if (!value)
- return false;
- if (!parseLineHeight(important))
- return false;
- } else
- addProperty(CSSPropertyLineHeight, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
-
- // Font family must come now.
- RefPtr<CSSValue> parsedFamilyValue = parseFontFamily();
- if (!parsedFamilyValue)
- return false;
-
- addProperty(CSSPropertyFontFamily, parsedFamilyValue.releaseNonNull(), important);
-
- // FIXME: http://www.w3.org/TR/2011/WD-css3-fonts-20110324/#font-prop requires that
- // "font-stretch", "font-size-adjust", and "font-kerning" be reset to their initial values
- // but we don't seem to support them at the moment. They should also be added here once implemented.
- if (m_valueList->current())
- return false;
-
- return true;
-}
-
-void CSSParser::parseSystemFont(bool important)
-{
- ASSERT(m_valueList->size() == 1);
- CSSValueID systemFontID = m_valueList->valueAt(0)->id;
- ASSERT(systemFontID >= CSSValueCaption && systemFontID <= CSSValueStatusBar);
- m_valueList->next();
-
- FontCascadeDescription fontDescription;
- RenderTheme::defaultTheme()->systemFont(systemFontID, fontDescription);
- if (!fontDescription.isAbsoluteSize())
- return;
-
- // We must set font's constituent properties, even for system fonts, so the cascade functions correctly.
- ShorthandScope scope(this, CSSPropertyFont);
- addProperty(CSSPropertyFontStyle, CSSValuePool::singleton().createIdentifierValue(fontDescription.italic() == FontItalicOn ? CSSValueItalic : CSSValueNormal), important);
- addProperty(CSSPropertyFontWeight, CSSValuePool::singleton().createValue(fontDescription.weight()), important);
- addProperty(CSSPropertyFontSize, CSSValuePool::singleton().createValue(fontDescription.specifiedSize(), CSSPrimitiveValue::CSS_PX), important);
- Ref<CSSValueList> fontFamilyList = CSSValueList::createCommaSeparated();
- fontFamilyList->append(CSSValuePool::singleton().createFontFamilyValue(fontDescription.familyAt(0), FromSystemFontID::Yes));
- addProperty(CSSPropertyFontFamily, WTFMove(fontFamilyList), important);
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important);
- addProperty(CSSPropertyLineHeight, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important);
-}
-
-class FontFamilyValueBuilder {
-public:
- FontFamilyValueBuilder(CSSValueList& list)
- : m_list(list)
- {
- }
-
- void add(const CSSParserString& string)
- {
- if (!m_builder.isEmpty())
- m_builder.append(' ');
-
- if (string.is8Bit()) {
- m_builder.append(string.characters8(), string.length());
- return;
- }
-
- m_builder.append(string.characters16(), string.length());
- }
-
- void commit()
- {
- if (m_builder.isEmpty())
- return;
- m_list.append(CSSValuePool::singleton().createFontFamilyValue(m_builder.toString()));
- m_builder.clear();
- }
-
-private:
- StringBuilder m_builder;
- CSSValueList& m_list;
-};
-
-static bool valueIsCSSKeyword(const CSSParserValue& value)
-{
- // FIXME: when we add "unset", we should handle it here.
- return value.id == CSSValueInitial || value.id == CSSValueInherit || value.id == CSSValueDefault;
-}
-
-RefPtr<CSSValueList> CSSParser::parseFontFamily()
-{
- auto list = CSSValueList::createCommaSeparated();
- CSSParserValue* value = m_valueList->current();
-
- FontFamilyValueBuilder familyBuilder(list);
- bool inFamily = false;
-
- while (value) {
- CSSParserValue* nextValue = m_valueList->next();
- bool nextValBreaksFont = !nextValue ||
- (nextValue->unit == CSSParserValue::Operator && nextValue->iValue == ',');
- bool nextValIsFontName = nextValue &&
- ((nextValue->id >= CSSValueSerif && nextValue->id <= CSSValueWebkitBody) ||
- (nextValue->unit == CSSPrimitiveValue::CSS_STRING || nextValue->unit == CSSPrimitiveValue::CSS_IDENT));
-
- bool valueIsKeyword = valueIsCSSKeyword(*value);
- if (valueIsKeyword && !inFamily) {
- if (nextValBreaksFont)
- value = m_valueList->next();
- else if (nextValIsFontName)
- value = nextValue;
- continue;
- }
-
- if (value->id >= CSSValueSerif && value->id <= CSSValueWebkitBody) {
- if (inFamily)
- familyBuilder.add(value->string);
- else if (nextValBreaksFont || !nextValIsFontName)
- list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
- else {
- familyBuilder.commit();
- familyBuilder.add(value->string);
- inFamily = true;
- }
- } else if (value->unit == CSSPrimitiveValue::CSS_STRING) {
- // Strings never share in a family name.
- inFamily = false;
- familyBuilder.commit();
- list->append(CSSValuePool::singleton().createFontFamilyValue(value->string));
- } else if (value->unit == CSSPrimitiveValue::CSS_IDENT) {
- if (inFamily)
- familyBuilder.add(value->string);
- else if (nextValBreaksFont || !nextValIsFontName)
- list->append(CSSValuePool::singleton().createFontFamilyValue(value->string));
- else {
- familyBuilder.commit();
- familyBuilder.add(value->string);
- inFamily = true;
- }
- } else {
- break;
- }
-
- if (!nextValue)
- break;
-
- if (nextValBreaksFont) {
- value = m_valueList->next();
- familyBuilder.commit();
- inFamily = false;
- }
- else if (nextValIsFontName)
- value = nextValue;
- else
- break;
- }
- familyBuilder.commit();
-
- if (!list->length())
- return nullptr;
- return WTFMove(list);
-}
-
-bool CSSParser::parseLineHeight(bool important)
-{
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- CSSValueID id = valueWithCalculation.value().id;
- bool validPrimitive = false;
- // normal | <number> | <length> | <percentage> | inherit
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FNumber | FLength | FPercent | FNonNeg));
- if (validPrimitive && (!m_valueList->next() || inShorthand()))
- addProperty(CSSPropertyLineHeight, parseValidPrimitive(id, valueWithCalculation), important);
- return validPrimitive;
-}
-
-bool CSSParser::parseFontSize(bool important)
-{
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- CSSValueID id = valueWithCalculation.value().id;
- bool validPrimitive = false;
- // <absolute-size> | <relative-size> | <length> | <percentage> | inherit
- if (id >= CSSValueXxSmall && id <= CSSValueLarger)
- validPrimitive = true;
- else
- validPrimitive = validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg);
- if (validPrimitive && (!m_valueList->next() || inShorthand()))
- addProperty(CSSPropertyFontSize, parseValidPrimitive(id, valueWithCalculation), important);
- return validPrimitive;
-}
-
-static CSSValueID createFontWeightValueKeyword(int weight)
-{
- ASSERT(!(weight % 100) && weight >= 100 && weight <= 900);
- CSSValueID value = static_cast<CSSValueID>(CSSValue100 + weight / 100 - 1);
- ASSERT(value >= CSSValue100 && value <= CSSValue900);
- return value;
-}
-
-bool CSSParser::parseFontWeight(bool important)
-{
- CSSParserValue& value = *m_valueList->current();
- if ((value.id >= CSSValueNormal) && (value.id <= CSSValue900)) {
- addProperty(CSSPropertyFontWeight, CSSValuePool::singleton().createIdentifierValue(value.id), important);
- return true;
- }
- ValueWithCalculation valueWithCalculation(value);
- if (validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSQuirksMode)) {
- int weight = static_cast<int>(parsedDouble(valueWithCalculation));
- if (!(weight % 100) && weight >= 100 && weight <= 900) {
- addProperty(CSSPropertyFontWeight, CSSValuePool::singleton().createIdentifierValue(createFontWeightValueKeyword(weight)), important);
- return true;
- }
- }
- return false;
-}
-
-bool CSSParser::parseFontSynthesis(bool important)
-{
- // none | [ weight || style ]
- CSSParserValue* value = m_valueList->current();
- if (value && value->id == CSSValueNone) {
- addProperty(CSSPropertyFontSynthesis, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- m_valueList->next();
- return true;
- }
-
- bool encounteredWeight = false;
- bool encounteredStyle = false;
- while (value) {
- switch (value->id) {
- case CSSValueWeight:
- encounteredWeight = true;
- break;
- case CSSValueStyle:
- encounteredStyle = true;
- break;
- default:
- return false;
- }
- value = m_valueList->next();
- }
-
- auto list = CSSValueList::createSpaceSeparated();
- if (encounteredWeight)
- list->append(CSSValuePool::singleton().createIdentifierValue(CSSValueWeight));
- if (encounteredStyle)
- list->append(CSSValuePool::singleton().createIdentifierValue(CSSValueStyle));
- addProperty(CSSPropertyFontSynthesis, WTFMove(list), important);
- return true;
-}
-
-bool CSSParser::parseFontFaceSrcURI(CSSValueList& valueList)
-{
- auto uriValue = CSSFontFaceSrcValue::create(completeURL(m_valueList->current()->string));
-
- CSSParserValue* value = m_valueList->next();
- if (!value) {
- valueList.append(WTFMove(uriValue));
- return true;
- }
- if (value->unit == CSSParserValue::Operator && value->iValue == ',') {
- m_valueList->next();
- valueList.append(WTFMove(uriValue));
- return true;
- }
-
- if (value->unit != CSSParserValue::Function || !equalLettersIgnoringASCIICase(value->function->name, "format("))
- return false;
-
- // FIXME: http://www.w3.org/TR/2011/WD-css3-fonts-20111004/ says that format() contains a comma-separated list of strings,
- // but CSSFontFaceSrcValue stores only one format. Allowing one format for now.
- CSSParserValueList* args = value->function->args.get();
- if (!args || args->size() != 1 || (args->current()->unit != CSSPrimitiveValue::CSS_STRING && args->current()->unit != CSSPrimitiveValue::CSS_IDENT))
- return false;
- uriValue->setFormat(args->current()->string);
- valueList.append(WTFMove(uriValue));
- value = m_valueList->next();
- if (value && value->unit == CSSParserValue::Operator && value->iValue == ',')
- m_valueList->next();
- return true;
-}
-
-bool CSSParser::parseFontFaceSrcLocal(CSSValueList& valueList)
-{
- CSSParserValueList* args = m_valueList->current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- if (args->size() == 1 && args->current()->unit == CSSPrimitiveValue::CSS_STRING)
- valueList.append(CSSFontFaceSrcValue::createLocal(args->current()->string));
- else if (args->current()->unit == CSSPrimitiveValue::CSS_IDENT) {
- StringBuilder builder;
- for (CSSParserValue* localValue = args->current(); localValue; localValue = args->next()) {
- if (localValue->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
- if (!builder.isEmpty())
- builder.append(' ');
- builder.append(localValue->string);
- }
- valueList.append(CSSFontFaceSrcValue::createLocal(builder.toString()));
- } else
- return false;
-
- if (CSSParserValue* value = m_valueList->next()) {
- if (value->unit == CSSParserValue::Operator && value->iValue == ',')
- m_valueList->next();
- }
- return true;
-}
-
-bool CSSParser::parseFontFaceSrc()
-{
- auto values = CSSValueList::createCommaSeparated();
-
- while (CSSParserValue* value = m_valueList->current()) {
- if (value->unit == CSSPrimitiveValue::CSS_URI) {
- if (!parseFontFaceSrcURI(values))
- return false;
- } else if (value->unit == CSSParserValue::Function && equalLettersIgnoringASCIICase(value->function->name, "local(")) {
- if (!parseFontFaceSrcLocal(values))
- return false;
- } else
- return false;
- }
- if (!values->length())
- return false;
-
- addProperty(CSSPropertySrc, WTFMove(values), m_important);
- m_valueList->next();
- return true;
-}
-
-bool CSSParser::parseFontFaceUnicodeRange()
-{
- auto values = CSSValueList::createCommaSeparated();
- bool failed = false;
- bool operatorExpected = false;
- for (; m_valueList->current(); m_valueList->next(), operatorExpected = !operatorExpected) {
- if (operatorExpected) {
- if (m_valueList->current()->unit == CSSParserValue::Operator && m_valueList->current()->iValue == ',')
- continue;
- failed = true;
- break;
- }
- if (m_valueList->current()->unit != CSSPrimitiveValue::CSS_UNICODE_RANGE) {
- failed = true;
- break;
- }
-
- String rangeString = m_valueList->current()->string;
- UChar32 from = 0;
- UChar32 to = 0;
- unsigned length = rangeString.length();
-
- if (length < 3) {
- failed = true;
- break;
- }
-
- unsigned i = 2;
- while (i < length) {
- UChar c = rangeString[i];
- if (c == '-' || c == '?')
- break;
- from *= 16;
- if (c >= '0' && c <= '9')
- from += c - '0';
- else if (c >= 'A' && c <= 'F')
- from += 10 + c - 'A';
- else if (c >= 'a' && c <= 'f')
- from += 10 + c - 'a';
- else {
- failed = true;
- break;
- }
- i++;
- }
- if (failed)
- break;
-
- if (i == length)
- to = from;
- else if (rangeString[i] == '?') {
- unsigned span = 1;
- while (i < length && rangeString[i] == '?') {
- span *= 16;
- from *= 16;
- i++;
- }
- if (i < length)
- failed = true;
- to = from + span - 1;
- } else {
- if (length < i + 2) {
- failed = true;
- break;
- }
- i++;
- while (i < length) {
- UChar c = rangeString[i];
- to *= 16;
- if (c >= '0' && c <= '9')
- to += c - '0';
- else if (c >= 'A' && c <= 'F')
- to += 10 + c - 'A';
- else if (c >= 'a' && c <= 'f')
- to += 10 + c - 'a';
- else {
- failed = true;
- break;
- }
- i++;
- }
- if (failed)
- break;
- }
- if (from <= to)
- values->append(CSSUnicodeRangeValue::create(from, to));
- }
- if (failed || !values->length())
- return false;
- addProperty(CSSPropertyUnicodeRange, WTFMove(values), m_important);
- return true;
-}
-
-// Returns the number of characters which form a valid double
-// and are terminated by the given terminator character
-template <typename CharacterType>
-static int checkForValidDouble(const CharacterType* string, const CharacterType* end, const char terminator)
-{
- int length = end - string;
- if (length < 1)
- return 0;
-
- bool decimalMarkSeen = false;
- int processedLength = 0;
-
- for (int i = 0; i < length; ++i) {
- if (string[i] == terminator) {
- processedLength = i;
- break;
- }
- if (!isASCIIDigit(string[i])) {
- if (!decimalMarkSeen && string[i] == '.')
- decimalMarkSeen = true;
- else
- return 0;
- }
- }
-
- if (decimalMarkSeen && processedLength == 1)
- return 0;
-
- return processedLength;
-}
-
-// Returns the number of characters consumed for parsing a valid double
-// terminated by the given terminator character
-template <typename CharacterType>
-static int parseDouble(const CharacterType* string, const CharacterType* end, const char terminator, double& value)
-{
- int length = checkForValidDouble(string, end, terminator);
- if (!length)
- return 0;
-
- int position = 0;
- double localValue = 0;
-
- // The consumed characters here are guaranteed to be
- // ASCII digits with or without a decimal mark
- for (; position < length; ++position) {
- if (string[position] == '.')
- break;
- localValue = localValue * 10 + string[position] - '0';
- }
-
- if (++position == length) {
- value = localValue;
- return length;
- }
-
- double fraction = 0;
- double scale = 1;
-
- while (position < length && scale < MAX_SCALE) {
- fraction = fraction * 10 + string[position++] - '0';
- scale *= 10;
- }
-
- value = localValue + fraction / scale;
- return length;
-}
-
-template <typename CharacterType>
-static bool parseColorIntOrPercentage(const CharacterType*& string, const CharacterType* end, const char terminator, CSSPrimitiveValue::UnitTypes& expect, int& value)
-{
- const CharacterType* current = string;
- double localValue = 0;
- bool negative = false;
- while (current != end && isHTMLSpace(*current))
- current++;
- if (current != end && *current == '-') {
- negative = true;
- current++;
- }
- if (current == end || !isASCIIDigit(*current))
- return false;
- while (current != end && isASCIIDigit(*current)) {
- double newValue = localValue * 10 + *current++ - '0';
- if (newValue >= 255) {
- // Clamp values at 255.
- localValue = 255;
- while (current != end && isASCIIDigit(*current))
- ++current;
- break;
- }
- localValue = newValue;
- }
-
- if (current == end)
- return false;
-
- if (expect == CSSPrimitiveValue::CSS_NUMBER && (*current == '.' || *current == '%'))
- return false;
-
- if (*current == '.') {
- // We already parsed the integral part, try to parse
- // the fraction part of the percentage value.
- double percentage = 0;
- int numCharactersParsed = parseDouble(current, end, '%', percentage);
- if (!numCharactersParsed)
- return false;
- current += numCharactersParsed;
- if (*current != '%')
- return false;
- localValue += percentage;
- }
-
- if (expect == CSSPrimitiveValue::CSS_PERCENTAGE && *current != '%')
- return false;
-
- if (*current == '%') {
- expect = CSSPrimitiveValue::CSS_PERCENTAGE;
- localValue = localValue / 100.0 * 256.0;
- // Clamp values at 255 for percentages over 100%
- if (localValue > 255)
- localValue = 255;
- current++;
- } else
- expect = CSSPrimitiveValue::CSS_NUMBER;
-
- while (current != end && isHTMLSpace(*current))
- current++;
- if (current == end || *current++ != terminator)
- return false;
- // Clamp negative values at zero.
- value = negative ? 0 : static_cast<int>(localValue);
- string = current;
- return true;
-}
-
-template <typename CharacterType>
-static inline bool isTenthAlpha(const CharacterType* string, const int length)
-{
- // "0.X"
- if (length == 3 && string[0] == '0' && string[1] == '.' && isASCIIDigit(string[2]))
- return true;
-
- // ".X"
- if (length == 2 && string[0] == '.' && isASCIIDigit(string[1]))
- return true;
-
- return false;
-}
-
-template <typename CharacterType>
-static inline bool parseAlphaValue(const CharacterType*& string, const CharacterType* end, const char terminator, int& value)
-{
- while (string != end && isHTMLSpace(*string))
- ++string;
-
- bool negative = false;
-
- if (string != end && *string == '-') {
- negative = true;
- ++string;
- }
-
- value = 0;
-
- int length = end - string;
- if (length < 2)
- return false;
-
- if (string[length - 1] != terminator || !isASCIIDigit(string[length - 2]))
- return false;
-
- if (string[0] != '0' && string[0] != '1' && string[0] != '.') {
- if (checkForValidDouble(string, end, terminator)) {
- value = negative ? 0 : 255;
- string = end;
- return true;
- }
- return false;
- }
-
- if (length == 2 && string[0] != '.') {
- value = !negative && string[0] == '1' ? 255 : 0;
- string = end;
- return true;
- }
-
- if (isTenthAlpha(string, length - 1)) {
- static const int tenthAlphaValues[] = { 0, 25, 51, 76, 102, 127, 153, 179, 204, 230 };
- value = negative ? 0 : tenthAlphaValues[string[length - 2] - '0'];
- string = end;
- return true;
- }
-
- double alpha = 0;
- if (!parseDouble(string, end, terminator, alpha))
- return false;
- value = negative ? 0 : static_cast<int>(alpha * nextafter(256.0, 0.0));
- string = end;
- return true;
-}
-
-template <typename CharacterType>
-static inline bool mightBeRGBA(const CharacterType* characters, unsigned length)
-{
- if (length < 5)
- return false;
- return characters[4] == '('
- && isASCIIAlphaCaselessEqual(characters[0], 'r')
- && isASCIIAlphaCaselessEqual(characters[1], 'g')
- && isASCIIAlphaCaselessEqual(characters[2], 'b')
- && isASCIIAlphaCaselessEqual(characters[3], 'a');
-}
-
-template <typename CharacterType>
-static inline bool mightBeRGB(const CharacterType* characters, unsigned length)
-{
- if (length < 4)
- return false;
- return characters[3] == '('
- && isASCIIAlphaCaselessEqual(characters[0], 'r')
- && isASCIIAlphaCaselessEqual(characters[1], 'g')
- && isASCIIAlphaCaselessEqual(characters[2], 'b');
-}
-
-template <typename CharacterType>
-static inline bool fastParseColorInternal(RGBA32& rgb, const CharacterType* characters, unsigned length , bool strict)
-{
- CSSPrimitiveValue::UnitTypes expect = CSSPrimitiveValue::CSS_UNKNOWN;
-
- if (!strict && length >= 3) {
- if (characters[0] == '#') {
- if (Color::parseHexColor(characters + 1, length - 1, rgb))
- return true;
- } else {
- if (Color::parseHexColor(characters, length, rgb))
- return true;
- }
- }
-
- // Try rgba() syntax.
- if (mightBeRGBA(characters, length)) {
- const CharacterType* current = characters + 5;
- const CharacterType* end = characters + length;
- int red;
- int green;
- int blue;
- int alpha;
-
- if (!parseColorIntOrPercentage(current, end, ',', expect, red))
- return false;
- if (!parseColorIntOrPercentage(current, end, ',', expect, green))
- return false;
- if (!parseColorIntOrPercentage(current, end, ',', expect, blue))
- return false;
- if (!parseAlphaValue(current, end, ')', alpha))
- return false;
- if (current != end)
- return false;
- rgb = makeRGBA(red, green, blue, alpha);
- return true;
- }
-
- // Try rgb() syntax.
- if (mightBeRGB(characters, length)) {
- const CharacterType* current = characters + 4;
- const CharacterType* end = characters + length;
- int red;
- int green;
- int blue;
- if (!parseColorIntOrPercentage(current, end, ',', expect, red))
- return false;
- if (!parseColorIntOrPercentage(current, end, ',', expect, green))
- return false;
- if (!parseColorIntOrPercentage(current, end, ')', expect, blue))
- return false;
- if (current != end)
- return false;
- rgb = makeRGB(red, green, blue);
- return true;
- }
-
- return false;
-}
-
-template<typename StringType>
-bool CSSParser::fastParseColor(RGBA32& rgb, const StringType& name, bool strict)
-{
- unsigned length = name.length();
- bool parseResult;
-
- if (!length)
- return false;
-
- if (name.is8Bit())
- parseResult = fastParseColorInternal(rgb, name.characters8(), length, strict);
- else
- parseResult = fastParseColorInternal(rgb, name.characters16(), length, strict);
-
- if (parseResult)
- return true;
-
- // Try named colors.
- Color tc;
- tc.setNamedColor(name);
- if (tc.isValid()) {
- rgb = tc.rgb();
- return true;
- }
- return false;
-}
-
-inline double CSSParser::parsedDouble(ValueWithCalculation& valueWithCalculation)
-{
- return valueWithCalculation.calculation() ? valueWithCalculation.calculation()->doubleValue() : valueWithCalculation.value().fValue;
-}
-
-bool CSSParser::isCalculation(CSSParserValue& value)
-{
- return value.unit == CSSParserValue::Function
- && (equalLettersIgnoringASCIICase(value.function->name, "calc(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-calc("));
-}
-
-inline int CSSParser::colorIntFromValue(ValueWithCalculation& valueWithCalculation)
-{
- bool isPercent;
-
- if (valueWithCalculation.calculation())
- isPercent = valueWithCalculation.calculation()->category() == CalcPercent;
- else
- isPercent = valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_PERCENTAGE;
-
- const double doubleValue = parsedDouble(valueWithCalculation);
-
- if (doubleValue <= 0.0)
- return 0;
-
- if (isPercent) {
- if (doubleValue >= 100.0)
- return 255;
- return static_cast<int>(doubleValue * 256.0 / 100.0);
- }
-
- if (doubleValue >= 255.0)
- return 255;
-
- return static_cast<int>(doubleValue);
-}
-
-bool CSSParser::parseColorParameters(CSSParserValue& value, int* colorArray, bool parseAlpha)
-{
- CSSParserValueList* args = value.function->args.get();
- ValueWithCalculation firstArgumentWithCalculation(*args->current());
- Units unitType = FUnknown;
- // Get the first value and its type
- if (validateUnit(firstArgumentWithCalculation, FInteger, CSSStrictMode))
- unitType = FInteger;
- else if (validateUnit(firstArgumentWithCalculation, FPercent, CSSStrictMode))
- unitType = FPercent;
- else
- return false;
-
- colorArray[0] = colorIntFromValue(firstArgumentWithCalculation);
- for (int i = 1; i < 3; i++) {
- CSSParserValue& operatorArgument = *args->next();
- if (operatorArgument.unit != CSSParserValue::Operator && operatorArgument.iValue != ',')
- return false;
- ValueWithCalculation argumentWithCalculation(*args->next());
- if (!validateUnit(argumentWithCalculation, unitType, CSSStrictMode))
- return false;
- colorArray[i] = colorIntFromValue(argumentWithCalculation);
- }
- if (parseAlpha) {
- CSSParserValue& operatorArgument = *args->next();
- if (operatorArgument.unit != CSSParserValue::Operator && operatorArgument.iValue != ',')
- return false;
- ValueWithCalculation argumentWithCalculation(*args->next());
- if (!validateUnit(argumentWithCalculation, FNumber, CSSStrictMode))
- return false;
- double doubleValue = parsedDouble(argumentWithCalculation);
- // Convert the floating pointer number of alpha to an integer in the range [0, 256),
- // with an equal distribution across all 256 values.
- colorArray[3] = static_cast<int>(std::max<double>(0, std::min<double>(1, doubleValue)) * nextafter(256.0, 0.0));
- }
- return true;
-}
-
-// The CSS3 specification defines the format of a HSL color as
-// hsl(<number>, <percent>, <percent>)
-// and with alpha, the format is
-// hsla(<number>, <percent>, <percent>, <number>)
-// The first value, HUE, is in an angle with a value between 0 and 360
-bool CSSParser::parseHSLParameters(CSSParserValue& value, double* colorArray, bool parseAlpha)
-{
- CSSParserValueList* args = value.function->args.get();
- ValueWithCalculation firstArgumentWithCalculation(*args->current());
- // Get the first value
- if (!validateUnit(firstArgumentWithCalculation, FNumber, CSSStrictMode))
- return false;
- // normalize the Hue value and change it to be between 0 and 1.0
- colorArray[0] = (((static_cast<int>(parsedDouble(firstArgumentWithCalculation)) % 360) + 360) % 360) / 360.0;
- for (int i = 1; i < 3; ++i) {
- CSSParserValue& operatorArgument = *args->next();
- if (operatorArgument.unit != CSSParserValue::Operator && operatorArgument.iValue != ',')
- return false;
- ValueWithCalculation argumentWithCalculation(*args->next());
- if (!validateUnit(argumentWithCalculation, FPercent, CSSStrictMode))
- return false;
- colorArray[i] = std::max<double>(0, std::min<double>(100, parsedDouble(argumentWithCalculation))) / 100.0; // needs to be value between 0 and 1.0
- }
- if (parseAlpha) {
- CSSParserValue& operatorArgument = *args->next();
- if (operatorArgument.unit != CSSParserValue::Operator && operatorArgument.iValue != ',')
- return false;
- ValueWithCalculation argumentWithCalculation(*args->next());
- if (!validateUnit(argumentWithCalculation, FNumber, CSSStrictMode))
- return false;
- colorArray[3] = std::max<double>(0, std::min<double>(1, parsedDouble(argumentWithCalculation)));
- }
- return true;
-}
-
-RefPtr<CSSPrimitiveValue> CSSParser::parseColor(CSSParserValue* value)
-{
- RGBA32 c = Color::transparent;
- if (!parseColorFromValue(value ? *value : *m_valueList->current(), c))
- return nullptr;
- return CSSValuePool::singleton().createColorValue(c);
-}
-
-bool CSSParser::parseColorFromValue(CSSParserValue& value, RGBA32& c)
-{
- if (inQuirksMode() && value.unit == CSSPrimitiveValue::CSS_NUMBER
- && value.fValue >= 0. && value.fValue < 1000000.) {
- String str = String::format("%06d", static_cast<int>((value.fValue+.5)));
- // FIXME: This should be strict parsing for SVG as well.
- if (!fastParseColor(c, str, inStrictMode()))
- return false;
- } else if (value.unit == CSSPrimitiveValue::CSS_PARSER_HEXCOLOR
- || value.unit == CSSPrimitiveValue::CSS_IDENT
- || (inQuirksMode() && value.unit == CSSPrimitiveValue::CSS_DIMENSION)) {
- if (!fastParseColor(c, value.string, inStrictMode() && value.unit == CSSPrimitiveValue::CSS_IDENT))
- return false;
- } else if (value.unit == CSSParserValue::Function
- && value.function->args
- && value.function->args->size() == 5 /* rgb + two commas */
- && equalLettersIgnoringASCIICase(value.function->name, "rgb(")) {
- int colorValues[3];
- if (!parseColorParameters(value, colorValues, false))
- return false;
- c = makeRGB(colorValues[0], colorValues[1], colorValues[2]);
- } else {
- if (value.unit == CSSParserValue::Function
- && value.function->args
- && value.function->args->size() == 7 /* rgba + three commas */
- && equalLettersIgnoringASCIICase(value.function->name, "rgba(")) {
- int colorValues[4];
- if (!parseColorParameters(value, colorValues, true))
- return false;
- c = makeRGBA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]);
- } else if (value.unit == CSSParserValue::Function
- && value.function->args
- && value.function->args->size() == 5 /* hsl + two commas */
- && equalLettersIgnoringASCIICase(value.function->name, "hsl(")) {
- double colorValues[3];
- if (!parseHSLParameters(value, colorValues, false))
- return false;
- c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], 1.0);
- } else if (value.unit == CSSParserValue::Function
- && value.function->args
- && value.function->args->size() == 7 /* hsla + three commas */
- && equalLettersIgnoringASCIICase(value.function->name, "hsla(")) {
- double colorValues[4];
- if (!parseHSLParameters(value, colorValues, true))
- return false;
- c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]);
- } else
- return false;
- }
-
- return true;
-}
-
-// This class tracks parsing state for shadow values. If it goes out of scope (e.g., due to an early return)
-// without the allowBreak bit being set, then it will clean up all of the objects and destroy them.
-struct ShadowParseContext {
- ShadowParseContext(CSSPropertyID prop, CSSParser& parser)
- : property(prop)
- , m_parser(parser)
- , allowX(true)
- , allowY(false)
- , allowBlur(false)
- , allowSpread(false)
- , allowColor(true)
- , allowStyle(prop == CSSPropertyWebkitBoxShadow || prop == CSSPropertyBoxShadow)
- , allowBreak(true)
- {
- }
-
- bool allowLength() { return allowX || allowY || allowBlur || allowSpread; }
-
- void commitValue()
- {
- // Handle the ,, case gracefully by doing nothing.
- if (x || y || blur || spread || color || style) {
- if (!values)
- values = CSSValueList::createCommaSeparated();
-
- // Construct the current shadow value and add it to the list.
- values->append(CSSShadowValue::create(WTFMove(x), WTFMove(y), WTFMove(blur), WTFMove(spread), WTFMove(style), WTFMove(color)));
- }
-
- // Now reset for the next shadow value.
- x = nullptr;
- y = nullptr;
- blur = nullptr;
- spread = nullptr;
- style = nullptr;
- color = nullptr;
-
- allowX = true;
- allowColor = true;
- allowBreak = true;
- allowY = false;
- allowBlur = false;
- allowSpread = false;
- allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
- }
-
- void commitLength(CSSParser::ValueWithCalculation& valueWithCalculation)
- {
- auto primitiveValue = m_parser.createPrimitiveNumericValue(valueWithCalculation);
-
- if (allowX) {
- x = WTFMove(primitiveValue);
- allowX = false;
- allowY = true;
- allowColor = false;
- allowStyle = false;
- allowBreak = false;
- } else if (allowY) {
- y = WTFMove(primitiveValue);
- allowY = false;
- allowBlur = true;
- allowColor = true;
- allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
- allowBreak = true;
- } else if (allowBlur) {
- blur = WTFMove(primitiveValue);
- allowBlur = false;
- allowSpread = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
- } else if (allowSpread) {
- spread = WTFMove(primitiveValue);
- allowSpread = false;
- }
- }
-
- void commitColor(RefPtr<CSSPrimitiveValue>&& val)
- {
- color = val;
- allowColor = false;
- if (allowX) {
- allowStyle = false;
- allowBreak = false;
- } else {
- allowBlur = false;
- allowSpread = false;
- allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
- }
- }
-
- void commitStyle(CSSParserValue& value)
- {
- style = CSSValuePool::singleton().createIdentifierValue(value.id);
- allowStyle = false;
- if (allowX)
- allowBreak = false;
- else {
- allowBlur = false;
- allowSpread = false;
- allowColor = false;
- }
- }
-
- CSSPropertyID property;
- CSSParser& m_parser;
-
- RefPtr<CSSValueList> values;
- RefPtr<CSSPrimitiveValue> x;
- RefPtr<CSSPrimitiveValue> y;
- RefPtr<CSSPrimitiveValue> blur;
- RefPtr<CSSPrimitiveValue> spread;
- RefPtr<CSSPrimitiveValue> style;
- RefPtr<CSSPrimitiveValue> color;
-
- bool allowX;
- bool allowY;
- bool allowBlur;
- bool allowSpread;
- bool allowColor;
- bool allowStyle; // inset or not.
- bool allowBreak;
-};
-
-RefPtr<CSSValueList> CSSParser::parseShadow(CSSParserValueList& valueList, CSSPropertyID propId)
-{
- ShadowParseContext context(propId, *this);
- CSSParserValue* value;
- while ((value = valueList.current())) {
- ValueWithCalculation valueWithCalculation(*value);
- // Check for a comma break first.
- if (value->unit == CSSParserValue::Operator) {
- if (value->iValue != ',' || !context.allowBreak) {
- // Other operators aren't legal or we aren't done with the current shadow
- // value. Treat as invalid.
- return nullptr;
- }
- // -webkit-svg-shadow does not support multiple values.
- if (propId == CSSPropertyWebkitSvgShadow)
- return nullptr;
- // The value is good. Commit it.
- context.commitValue();
- } else if (validateUnit(valueWithCalculation, FLength, CSSStrictMode)) {
- // We required a length and didn't get one. Invalid.
- if (!context.allowLength())
- return nullptr;
-
- // Blur radius must be non-negative.
- if (context.allowBlur && !validateUnit(valueWithCalculation, FLength | FNonNeg, CSSStrictMode))
- return nullptr;
-
- // A length is allowed here. Construct the value and add it.
- context.commitLength(valueWithCalculation);
- } else if (value->id == CSSValueInset) {
- if (!context.allowStyle)
- return nullptr;
-
- context.commitStyle(valueWithCalculation);
- } else {
- // The only other type of value that's ok is a color value.
- RefPtr<CSSPrimitiveValue> parsedColor;
- bool isColor = (isValidSystemColorValue(value->id) || value->id == CSSValueMenu
- || (value->id >= CSSValueWebkitFocusRingColor && value->id <= CSSValueWebkitText && inQuirksMode())
- || value->id == CSSValueCurrentcolor);
- if (isColor) {
- if (!context.allowColor)
- return nullptr;
- parsedColor = CSSValuePool::singleton().createIdentifierValue(value->id);
- }
-
- if (!parsedColor)
- // It's not built-in. Try to parse it as a color.
- parsedColor = parseColor(value);
-
- if (!parsedColor || !context.allowColor)
- return nullptr; // This value is not a color or length and is invalid or
- // it is a color, but a color isn't allowed at this point.
-
- context.commitColor(parsedColor.releaseNonNull());
- }
-
- valueList.next();
- }
-
- if (context.allowBreak) {
- context.commitValue();
- if (context.values && context.values->length())
- return WTFMove(context.values);
- }
-
- return nullptr;
-}
-
-bool CSSParser::parseReflect(CSSPropertyID propId, bool important)
-{
- // box-reflect: <direction> <offset> <mask>
-
- // Direction comes first.
- CSSParserValue* value = m_valueList->current();
- RefPtr<CSSPrimitiveValue> direction;
- switch (value->id) {
- case CSSValueAbove:
- case CSSValueBelow:
- case CSSValueLeft:
- case CSSValueRight:
- direction = CSSValuePool::singleton().createIdentifierValue(value->id);
- break;
- default:
- return false;
- }
-
- // The offset comes next.
- value = m_valueList->next();
- RefPtr<CSSPrimitiveValue> offset;
- if (!value)
- offset = CSSValuePool::singleton().createValue(0, CSSPrimitiveValue::CSS_PX);
- else {
- ValueWithCalculation valueWithCalculation(*value);
- if (!validateUnit(valueWithCalculation, FLength | FPercent))
- return false;
- offset = createPrimitiveNumericValue(valueWithCalculation);
- }
-
- // Now for the mask.
- RefPtr<CSSValue> mask;
- value = m_valueList->next();
- if (value) {
- if (!parseBorderImage(propId, mask))
- return false;
- }
-
- addProperty(propId, CSSReflectValue::create(direction.releaseNonNull(), offset.releaseNonNull(), WTFMove(mask)), important);
- m_valueList->next();
- return true;
-}
-
-bool CSSParser::parseFlex(CSSParserValueList& args, bool important)
-{
- if (!args.size() || args.size() > 3)
- return false;
- static const double unsetValue = -1;
- double flexGrow = unsetValue;
- double flexShrink = unsetValue;
- RefPtr<CSSPrimitiveValue> flexBasis;
-
- while (CSSParserValue* argument = args.current()) {
- ValueWithCalculation argumentWithCalculation(*argument);
- if (validateUnit(argumentWithCalculation, FNumber | FNonNeg)) {
- if (flexGrow == unsetValue)
- flexGrow = parsedDouble(argumentWithCalculation);
- else if (flexShrink == unsetValue)
- flexShrink = parsedDouble(argumentWithCalculation);
- else if (!parsedDouble(argumentWithCalculation)) {
- // flex only allows a basis of 0 (sans units) if flex-grow and flex-shrink values have already been set.
- flexBasis = CSSValuePool::singleton().createValue(0, CSSPrimitiveValue::CSS_PX);
- } else {
- // We only allow 3 numbers without units if the last value is 0. E.g., flex:1 1 1 is invalid.
- return false;
- }
- } else if (!flexBasis && (argumentWithCalculation.value().id == CSSValueAuto || validateUnit(argumentWithCalculation, FLength | FPercent | FNonNeg)))
- flexBasis = parseValidPrimitive(argumentWithCalculation.value().id, argumentWithCalculation);
- else {
- // Not a valid arg for flex.
- return false;
- }
- args.next();
- }
-
- if (flexGrow == unsetValue)
- flexGrow = 1;
- if (flexShrink == unsetValue)
- flexShrink = 1;
- if (!flexBasis)
- flexBasis = CSSValuePool::singleton().createValue(0, CSSPrimitiveValue::CSS_PX);
-
- addProperty(CSSPropertyFlexGrow, CSSValuePool::singleton().createValue(clampToFloat(flexGrow), CSSPrimitiveValue::CSS_NUMBER), important);
- addProperty(CSSPropertyFlexShrink, CSSValuePool::singleton().createValue(clampToFloat(flexShrink), CSSPrimitiveValue::CSS_NUMBER), important);
- addProperty(CSSPropertyFlexBasis, flexBasis.releaseNonNull(), important);
- return true;
-}
-
-struct BorderImageParseContext {
- BorderImageParseContext()
- : m_canAdvance(false)
- , m_allowCommit(true)
- , m_allowImage(true)
- , m_allowImageSlice(true)
- , m_allowRepeat(true)
- , m_allowForwardSlashOperator(false)
- , m_requireWidth(false)
- , m_requireOutset(false)
- {}
-
- bool canAdvance() const { return m_canAdvance; }
- void setCanAdvance(bool canAdvance) { m_canAdvance = canAdvance; }
-
- bool allowCommit() const { return m_allowCommit; }
- bool allowImage() const { return m_allowImage; }
- bool allowImageSlice() const { return m_allowImageSlice; }
- bool allowRepeat() const { return m_allowRepeat; }
- bool allowForwardSlashOperator() const { return m_allowForwardSlashOperator; }
-
- bool requireWidth() const { return m_requireWidth; }
- bool requireOutset() const { return m_requireOutset; }
-
- void commitImage(RefPtr<CSSValue>&& image)
- {
- m_image = WTFMove(image);
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowImage = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
- m_allowImageSlice = !m_imageSlice;
- m_allowRepeat = !m_repeat;
- }
- void commitImageSlice(RefPtr<CSSBorderImageSliceValue>&& slice)
- {
- m_imageSlice = WTFMove(slice);
- m_canAdvance = true;
- m_allowCommit = m_allowForwardSlashOperator = true;
- m_allowImageSlice = m_requireWidth = m_requireOutset = false;
- m_allowImage = !m_image;
- m_allowRepeat = !m_repeat;
- }
- void commitForwardSlashOperator()
- {
- m_canAdvance = true;
- m_allowCommit = m_allowImage = m_allowImageSlice = m_allowRepeat = m_allowForwardSlashOperator = false;
- if (!m_borderSlice) {
- m_requireWidth = true;
- m_requireOutset = false;
- } else {
- m_requireOutset = true;
- m_requireWidth = false;
- }
- }
- void commitBorderWidth(RefPtr<CSSPrimitiveValue>&& slice)
- {
- m_borderSlice = WTFMove(slice);
- m_canAdvance = true;
- m_allowCommit = m_allowForwardSlashOperator = true;
- m_allowImageSlice = m_requireWidth = m_requireOutset = false;
- m_allowImage = !m_image;
- m_allowRepeat = !m_repeat;
- }
- void commitBorderOutset(RefPtr<CSSPrimitiveValue>&& outset)
- {
- m_outset = WTFMove(outset);
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowImageSlice = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
- m_allowImage = !m_image;
- m_allowRepeat = !m_repeat;
- }
- void commitRepeat(RefPtr<CSSValue>&& repeat)
- {
- m_repeat = WTFMove(repeat);
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowRepeat = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
- m_allowImageSlice = !m_imageSlice;
- m_allowImage = !m_image;
- }
-
- Ref<CSSValue> commitWebKitBorderImage()
- {
- return createBorderImageValue(m_image.copyRef(), m_imageSlice.copyRef(), m_borderSlice.copyRef(), m_outset.copyRef(), m_repeat.copyRef());
- }
-
- void commitBorderImage(CSSParser& parser, bool important)
- {
- commitBorderImageProperty(CSSPropertyBorderImageSource, parser, WTFMove(m_image), important);
- commitBorderImageProperty(CSSPropertyBorderImageSlice, parser, m_imageSlice, important);
- commitBorderImageProperty(CSSPropertyBorderImageWidth, parser, m_borderSlice, important);
- commitBorderImageProperty(CSSPropertyBorderImageOutset, parser, m_outset, important);
- commitBorderImageProperty(CSSPropertyBorderImageRepeat, parser, WTFMove(m_repeat), important);
- }
-
- void commitBorderImageProperty(CSSPropertyID propId, CSSParser& parser, RefPtr<CSSValue>&& value, bool important)
- {
- if (value)
- parser.addProperty(propId, value.releaseNonNull(), important);
- else
- parser.addProperty(propId, CSSValuePool::singleton().createImplicitInitialValue(), important, true);
- }
-
- bool m_canAdvance;
-
- bool m_allowCommit;
- bool m_allowImage;
- bool m_allowImageSlice;
- bool m_allowRepeat;
- bool m_allowForwardSlashOperator;
-
- bool m_requireWidth;
- bool m_requireOutset;
-
- RefPtr<CSSValue> m_image;
- RefPtr<CSSBorderImageSliceValue> m_imageSlice;
- RefPtr<CSSPrimitiveValue> m_borderSlice;
- RefPtr<CSSPrimitiveValue> m_outset;
-
- RefPtr<CSSValue> m_repeat;
-};
-
-bool CSSParser::parseBorderImage(CSSPropertyID propId, RefPtr<CSSValue>& result, bool important)
-{
- ShorthandScope scope(this, propId);
- BorderImageParseContext context;
- while (CSSParserValue* currentValue = m_valueList->current()) {
- context.setCanAdvance(false);
-
- if (!context.canAdvance() && context.allowForwardSlashOperator() && isForwardSlashOperator(*currentValue))
- context.commitForwardSlashOperator();
-
- if (!context.canAdvance() && context.allowImage()) {
- if (currentValue->unit == CSSPrimitiveValue::CSS_URI)
- context.commitImage(CSSImageValue::create(completeURL(currentValue->string)));
- else if (isGeneratedImageValue(*currentValue)) {
- RefPtr<CSSValue> value;
- if (parseGeneratedImage(*m_valueList, value))
- context.commitImage(WTFMove(value));
- else
- return false;
- } else if (isImageSetFunctionValue(*currentValue)) {
- RefPtr<CSSValue> value = parseImageSet();
- if (value)
- context.commitImage(value.releaseNonNull());
- else
- return false;
- } else if (currentValue->id == CSSValueNone)
- context.commitImage(CSSValuePool::singleton().createIdentifierValue(CSSValueNone));
- }
-
- if (!context.canAdvance() && context.allowImageSlice()) {
- RefPtr<CSSBorderImageSliceValue> imageSlice;
- if (parseBorderImageSlice(propId, imageSlice))
- context.commitImageSlice(WTFMove(imageSlice));
- }
-
- if (!context.canAdvance() && context.allowRepeat()) {
- RefPtr<CSSValue> repeat;
- if (parseBorderImageRepeat(repeat))
- context.commitRepeat(WTFMove(repeat));
- }
-
- if (!context.canAdvance() && context.requireWidth()) {
- RefPtr<CSSPrimitiveValue> borderSlice;
- if (parseBorderImageWidth(borderSlice))
- context.commitBorderWidth(WTFMove(borderSlice));
- }
-
- if (!context.canAdvance() && context.requireOutset()) {
- RefPtr<CSSPrimitiveValue> borderOutset;
- if (parseBorderImageOutset(borderOutset))
- context.commitBorderOutset(WTFMove(borderOutset));
- }
-
- if (!context.canAdvance())
- return false;
-
- m_valueList->next();
- }
-
- if (context.allowCommit()) {
- if (propId == CSSPropertyBorderImage)
- context.commitBorderImage(*this, important);
- else
- // Need to fully commit as a single value.
- result = context.commitWebKitBorderImage();
- return true;
- }
-
- return false;
-}
-
-static bool isBorderImageRepeatKeyword(int id)
-{
- return id == CSSValueStretch || id == CSSValueRepeat || id == CSSValueSpace || id == CSSValueRound;
-}
-
-bool CSSParser::parseBorderImageRepeat(RefPtr<CSSValue>& result)
-{
- RefPtr<CSSPrimitiveValue> firstValue;
- RefPtr<CSSPrimitiveValue> secondValue;
- CSSParserValue* val = m_valueList->current();
- if (!val)
- return false;
- if (isBorderImageRepeatKeyword(val->id))
- firstValue = CSSValuePool::singleton().createIdentifierValue(val->id);
- else
- return false;
-
- val = m_valueList->next();
- if (val) {
- if (isBorderImageRepeatKeyword(val->id))
- secondValue = CSSValuePool::singleton().createIdentifierValue(val->id);
- else if (!inShorthand()) {
- // If we're not parsing a shorthand then we are invalid.
- return false;
- } else {
- // We need to rewind the value list, so that when its advanced we'll
- // end up back at this value.
- m_valueList->previous();
- secondValue = firstValue;
- }
- } else
- secondValue = firstValue;
-
- result = createPrimitiveValuePair(firstValue.releaseNonNull(), secondValue.releaseNonNull());
- return true;
-}
-
-class BorderImageSliceParseContext {
-public:
- BorderImageSliceParseContext(CSSParser& parser)
- : m_parser(parser)
- , m_allowNumber(true)
- , m_allowFill(true)
- , m_allowFinalCommit(false)
- , m_fill(false)
- { }
-
- bool allowNumber() const { return m_allowNumber; }
- bool allowFill() const { return m_allowFill; }
- bool allowFinalCommit() const { return m_allowFinalCommit; }
- CSSPrimitiveValue* top() const { return m_top.get(); }
-
- void commitNumber(CSSParser::ValueWithCalculation& valueWithCalculation)
- {
- auto primitiveValue = m_parser.createPrimitiveNumericValue(valueWithCalculation);
- if (!m_top)
- m_top = WTFMove(primitiveValue);
- else if (!m_right)
- m_right = WTFMove(primitiveValue);
- else if (!m_bottom)
- m_bottom = WTFMove(primitiveValue);
- else {
- ASSERT(!m_left);
- m_left = WTFMove(primitiveValue);
- }
-
- m_allowNumber = !m_left;
- m_allowFinalCommit = true;
- }
-
- void commitFill() { m_fill = true; m_allowFill = false; m_allowNumber = !m_top; }
-
- Ref<CSSBorderImageSliceValue> commitBorderImageSlice()
- {
- // We need to clone and repeat values for any omissions.
- ASSERT(m_top);
- if (!m_right) {
- m_right = m_top;
- m_bottom = m_top;
- m_left = m_top;
- }
- if (!m_bottom) {
- m_bottom = m_top;
- m_left = m_right;
- }
- if (!m_left)
- m_left = m_right;
-
- // Now build a rect value to hold all four of our primitive values.
- auto quad = Quad::create();
- quad->setTop(m_top.copyRef());
- quad->setRight(m_right.copyRef());
- quad->setBottom(m_bottom.copyRef());
- quad->setLeft(m_left.copyRef());
-
- // Make our new border image value now.
- return CSSBorderImageSliceValue::create(CSSValuePool::singleton().createValue(WTFMove(quad)), m_fill);
- }
-
-private:
- CSSParser& m_parser;
-
- bool m_allowNumber;
- bool m_allowFill;
- bool m_allowFinalCommit;
-
- RefPtr<CSSPrimitiveValue> m_top;
- RefPtr<CSSPrimitiveValue> m_right;
- RefPtr<CSSPrimitiveValue> m_bottom;
- RefPtr<CSSPrimitiveValue> m_left;
-
- bool m_fill;
-};
-
-bool CSSParser::parseBorderImageSlice(CSSPropertyID propId, RefPtr<CSSBorderImageSliceValue>& result)
-{
- BorderImageSliceParseContext context(*this);
- CSSParserValue* value;
- while ((value = m_valueList->current())) {
- ValueWithCalculation valueWithCalculation(*value);
- // FIXME calc() http://webkit.org/b/16662 : calc is parsed but values are not created yet.
- if (context.allowNumber() && !isCalculation(valueWithCalculation) && validateUnit(valueWithCalculation, FInteger | FNonNeg | FPercent, CSSStrictMode)) {
- context.commitNumber(valueWithCalculation);
- } else if (context.allowFill() && value->id == CSSValueFill)
- context.commitFill();
- else if (!inShorthand()) {
- // If we're not parsing a shorthand then we are invalid.
- return false;
- } else {
- if (context.allowFinalCommit()) {
- // We're going to successfully parse, but we don't want to consume this token.
- m_valueList->previous();
- }
- break;
- }
- m_valueList->next();
- }
-
- if (context.allowFinalCommit()) {
- // FIXME: For backwards compatibility, -webkit-border-image, -webkit-mask-box-image and -webkit-box-reflect have to do a fill by default.
- // FIXME: What do we do with -webkit-box-reflect and -webkit-mask-box-image? Probably just have to leave them filling...
- if (propId == CSSPropertyWebkitBorderImage || propId == CSSPropertyWebkitMaskBoxImage || propId == CSSPropertyWebkitBoxReflect)
- context.commitFill();
-
- // Need to fully commit as a single value.
- result = context.commitBorderImageSlice();
- return true;
- }
-
- return false;
-}
-
-class BorderImageQuadParseContext {
-public:
- BorderImageQuadParseContext(CSSParser& parser)
- : m_parser(parser)
- , m_allowNumber(true)
- , m_allowFinalCommit(false)
- { }
-
- bool allowNumber() const { return m_allowNumber; }
- bool allowFinalCommit() const { return m_allowFinalCommit; }
- CSSPrimitiveValue* top() const { return m_top.get(); }
-
- void commitNumber(CSSParser::ValueWithCalculation& valueWithCalculation)
- {
- RefPtr<CSSPrimitiveValue> primitiveValue;
- if (valueWithCalculation.value().id == CSSValueAuto)
- primitiveValue = CSSValuePool::singleton().createIdentifierValue(valueWithCalculation.value().id);
- else
- primitiveValue = m_parser.createPrimitiveNumericValue(valueWithCalculation);
-
- if (!m_top)
- m_top = WTFMove(primitiveValue);
- else if (!m_right)
- m_right = WTFMove(primitiveValue);
- else if (!m_bottom)
- m_bottom = WTFMove(primitiveValue);
- else {
- ASSERT(!m_left);
- m_left = WTFMove(primitiveValue);
- }
-
- m_allowNumber = !m_left;
- m_allowFinalCommit = true;
- }
-
- void setAllowFinalCommit() { m_allowFinalCommit = true; }
- void setTop(RefPtr<CSSPrimitiveValue>&& val) { m_top = WTFMove(val); }
-
- Ref<CSSPrimitiveValue> commitBorderImageQuad()
- {
- // We need to clone and repeat values for any omissions.
- ASSERT(m_top);
- if (!m_right) {
- m_right = m_top;
- m_bottom = m_top;
- m_left = m_top;
- }
- if (!m_bottom) {
- m_bottom = m_top;
- m_left = m_right;
- }
- if (!m_left)
- m_left = m_right;
-
- // Now build a quad value to hold all four of our primitive values.
- auto quad = Quad::create();
- quad->setTop(m_top.copyRef());
- quad->setRight(m_right.copyRef());
- quad->setBottom(m_bottom.copyRef());
- quad->setLeft(m_left.copyRef());
-
- // Make our new value now.
- return CSSValuePool::singleton().createValue(WTFMove(quad));
- }
-
-private:
- CSSParser& m_parser;
-
- bool m_allowNumber;
- bool m_allowFinalCommit;
-
- RefPtr<CSSPrimitiveValue> m_top;
- RefPtr<CSSPrimitiveValue> m_right;
- RefPtr<CSSPrimitiveValue> m_bottom;
- RefPtr<CSSPrimitiveValue> m_left;
-};
-
-bool CSSParser::parseBorderImageQuad(Units validUnits, RefPtr<CSSPrimitiveValue>& result)
-{
- BorderImageQuadParseContext context(*this);
- CSSParserValue* value;
- while ((value = m_valueList->current())) {
- ValueWithCalculation valueWithCalculation(*value);
- if (context.allowNumber() && (validateUnit(valueWithCalculation, validUnits, CSSStrictMode) || value->id == CSSValueAuto)) {
- context.commitNumber(valueWithCalculation);
- } else if (!inShorthand()) {
- // If we're not parsing a shorthand then we are invalid.
- return false;
- } else {
- if (context.allowFinalCommit())
- m_valueList->previous(); // The shorthand loop will advance back to this point.
- break;
- }
- m_valueList->next();
- }
-
- if (context.allowFinalCommit()) {
- // Need to fully commit as a single value.
- result = context.commitBorderImageQuad();
- return true;
- }
- return false;
-}
-
-bool CSSParser::parseBorderImageWidth(RefPtr<CSSPrimitiveValue>& result)
-{
- return parseBorderImageQuad(FLength | FInteger | FNonNeg | FPercent, result);
-}
-
-bool CSSParser::parseBorderImageOutset(RefPtr<CSSPrimitiveValue>& result)
-{
- return parseBorderImageQuad(FLength | FInteger | FNonNeg, result);
-}
-
-bool CSSParser::parseBorderRadius(CSSPropertyID propId, bool important)
-{
- unsigned num = m_valueList->size();
- if (num > 9)
- return false;
-
- ShorthandScope scope(this, propId);
- RefPtr<CSSPrimitiveValue> radii[2][4];
-
- unsigned indexAfterSlash = 0;
- for (unsigned i = 0; i < num; ++i) {
- CSSParserValue& value = *m_valueList->valueAt(i);
- if (value.unit == CSSParserValue::Operator) {
- if (value.iValue != '/')
- return false;
-
- if (!i || indexAfterSlash || i + 1 == num || num > i + 5)
- return false;
-
- indexAfterSlash = i + 1;
- completeBorderRadii(radii[0]);
- continue;
- }
-
- if (i - indexAfterSlash >= 4)
- return false;
-
- ValueWithCalculation valueWithCalculation(value);
- if (!validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg))
- return false;
-
- auto radius = createPrimitiveNumericValue(valueWithCalculation);
-
- if (!indexAfterSlash) {
- radii[0][i] = WTFMove(radius);
-
- // Legacy syntax: -webkit-border-radius: l1 l2; is equivalent to border-radius: l1 / l2;
- if (num == 2 && propId == CSSPropertyWebkitBorderRadius) {
- indexAfterSlash = 1;
- completeBorderRadii(radii[0]);
- }
- } else
- radii[1][i - indexAfterSlash] = WTFMove(radius);
- }
-
- if (!indexAfterSlash) {
- completeBorderRadii(radii[0]);
- for (unsigned i = 0; i < 4; ++i)
- radii[1][i] = radii[0][i];
- } else
- completeBorderRadii(radii[1]);
-
- ImplicitScope implicitScope(*this, PropertyImplicit);
- addProperty(CSSPropertyBorderTopLeftRadius, createPrimitiveValuePair(WTFMove(radii[0][0]), WTFMove(radii[1][0])), important);
- addProperty(CSSPropertyBorderTopRightRadius, createPrimitiveValuePair(WTFMove(radii[0][1]), WTFMove(radii[1][1])), important);
- addProperty(CSSPropertyBorderBottomRightRadius, createPrimitiveValuePair(WTFMove(radii[0][2]), WTFMove(radii[1][2])), important);
- addProperty(CSSPropertyBorderBottomLeftRadius, createPrimitiveValuePair(WTFMove(radii[0][3]), WTFMove(radii[1][3])), important);
- return true;
-}
-
-bool CSSParser::parseAspectRatio(bool important)
-{
- unsigned num = m_valueList->size();
- if (num == 1) {
- CSSValueID valueId = m_valueList->valueAt(0)->id;
- if (valueId == CSSValueAuto || valueId == CSSValueFromDimensions || valueId == CSSValueFromIntrinsic) {
- addProperty(CSSPropertyWebkitAspectRatio, CSSValuePool::singleton().createIdentifierValue(valueId), important);
- return true;
- }
- }
-
- if (num != 3)
- return false;
-
- CSSParserValue& op = *m_valueList->valueAt(1);
-
- if (!isForwardSlashOperator(op))
- return false;
-
- ValueWithCalculation lvalueWithCalculation(*m_valueList->valueAt(0));
- ValueWithCalculation rvalueWithCalculation(*m_valueList->valueAt(2));
- if (!validateUnit(lvalueWithCalculation, FNumber | FNonNeg) || !validateUnit(rvalueWithCalculation, FNumber | FNonNeg))
- return false;
-
- // FIXME: This doesn't handle calculated values.
- if (!lvalueWithCalculation.value().fValue || !rvalueWithCalculation.value().fValue)
- return false;
-
- addProperty(CSSPropertyWebkitAspectRatio, CSSAspectRatioValue::create(narrowPrecisionToFloat(lvalueWithCalculation.value().fValue), narrowPrecisionToFloat(rvalueWithCalculation.value().fValue)), important);
-
- return true;
-}
-
-bool CSSParser::parseCounter(CSSPropertyID propId, int defaultValue, bool important)
-{
- enum { ID, VAL } state = ID;
-
- auto list = CSSValueList::createCommaSeparated();
- RefPtr<CSSPrimitiveValue> counterName;
-
- while (true) {
- CSSParserValue* value = m_valueList->current();
- switch (state) {
- case ID:
- if (value && value->unit == CSSPrimitiveValue::CSS_IDENT) {
- counterName = createPrimitiveStringValue(*value);
- state = VAL;
- m_valueList->next();
- continue;
- }
- break;
- case VAL: {
- int i = defaultValue;
- if (value && value->unit == CSSPrimitiveValue::CSS_NUMBER) {
- i = clampToInteger(value->fValue);
- m_valueList->next();
- }
-
- list->append(createPrimitiveValuePair(WTFMove(counterName),
- CSSValuePool::singleton().createValue(i, CSSPrimitiveValue::CSS_NUMBER)));
- state = ID;
- continue;
- }
- }
- break;
- }
-
- if (list->length() > 0) {
- addProperty(propId, WTFMove(list), important);
- return true;
- }
-
- return false;
-}
-
-// This should go away once we drop support for -webkit-gradient
-static RefPtr<CSSPrimitiveValue> parseDeprecatedGradientPoint(CSSParserValue& value, bool horizontal)
-{
- RefPtr<CSSPrimitiveValue> result;
- if (value.unit == CSSPrimitiveValue::CSS_IDENT) {
- if ((equalLettersIgnoringASCIICase(value, "left") && horizontal)
- || (equalLettersIgnoringASCIICase(value, "top") && !horizontal))
- result = CSSValuePool::singleton().createValue(0., CSSPrimitiveValue::CSS_PERCENTAGE);
- else if ((equalLettersIgnoringASCIICase(value, "right") && horizontal)
- || (equalLettersIgnoringASCIICase(value, "bottom") && !horizontal))
- result = CSSValuePool::singleton().createValue(100., CSSPrimitiveValue::CSS_PERCENTAGE);
- else if (equalLettersIgnoringASCIICase(value, "center"))
- result = CSSValuePool::singleton().createValue(50., CSSPrimitiveValue::CSS_PERCENTAGE);
- } else if (value.unit == CSSPrimitiveValue::CSS_NUMBER || value.unit == CSSPrimitiveValue::CSS_PERCENTAGE)
- result = CSSValuePool::singleton().createValue(value.fValue, static_cast<CSSPrimitiveValue::UnitTypes>(value.unit));
- return result;
-}
-
-static bool parseDeprecatedGradientColorStop(CSSParser& parser, CSSParserValue& value, CSSGradientColorStop& stop)
-{
- if (value.unit != CSSParserValue::Function)
- return false;
-
- if (!equalLettersIgnoringASCIICase(value.function->name, "from(")
- && !equalLettersIgnoringASCIICase(value.function->name, "to(")
- && !equalLettersIgnoringASCIICase(value.function->name, "color-stop("))
- return false;
-
- CSSParserValueList* args = value.function->args.get();
- if (!args)
- return false;
-
- if (equalLettersIgnoringASCIICase(value.function->name, "from(")
- || equalLettersIgnoringASCIICase(value.function->name, "to(")) {
- // The "from" and "to" stops expect 1 argument.
- if (args->size() != 1)
- return false;
-
- if (equalLettersIgnoringASCIICase(value.function->name, "from("))
- stop.m_position = CSSValuePool::singleton().createValue(0, CSSPrimitiveValue::CSS_NUMBER);
- else
- stop.m_position = CSSValuePool::singleton().createValue(1, CSSPrimitiveValue::CSS_NUMBER);
-
- CSSValueID id = args->current()->id;
- if (id == CSSValueWebkitText || CSSParser::isValidSystemColorValue(id) || id == CSSValueMenu)
- stop.m_color = CSSValuePool::singleton().createIdentifierValue(id);
- else
- stop.m_color = parser.parseColor(args->current());
- if (!stop.m_color)
- return false;
- }
-
- // The "color-stop" function expects 3 arguments.
- if (equalLettersIgnoringASCIICase(value.function->name, "color-stop(")) {
- if (args->size() != 3)
- return false;
-
- CSSParserValue* stopArg = args->current();
- if (stopArg->unit == CSSPrimitiveValue::CSS_PERCENTAGE)
- stop.m_position = CSSValuePool::singleton().createValue(stopArg->fValue / 100, CSSPrimitiveValue::CSS_NUMBER);
- else if (stopArg->unit == CSSPrimitiveValue::CSS_NUMBER)
- stop.m_position = CSSValuePool::singleton().createValue(stopArg->fValue, CSSPrimitiveValue::CSS_NUMBER);
- else
- return false;
-
- stopArg = args->next();
- if (stopArg->unit != CSSParserValue::Operator || stopArg->iValue != ',')
- return false;
-
- stopArg = args->next();
- CSSValueID id = stopArg->id;
- if (id == CSSValueWebkitText || CSSParser::isValidSystemColorValue(id) || id == CSSValueMenu)
- stop.m_color = CSSValuePool::singleton().createIdentifierValue(id);
- else
- stop.m_color = parser.parseColor(stopArg);
- if (!stop.m_color)
- return false;
- }
-
- return true;
-}
-
-bool CSSParser::parseDeprecatedGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient)
-{
- // Walk the arguments.
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args || args->size() == 0)
- return false;
-
- // The first argument is the gradient type. It is an identifier.
- CSSGradientType gradientType;
- CSSParserValue* argument = args->current();
- if (!argument || argument->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
- if (equalLettersIgnoringASCIICase(*argument, "linear"))
- gradientType = CSSDeprecatedLinearGradient;
- else if (equalLettersIgnoringASCIICase(*argument, "radial"))
- gradientType = CSSDeprecatedRadialGradient;
- else
- return false;
-
- RefPtr<CSSGradientValue> result;
- switch (gradientType) {
- case CSSDeprecatedLinearGradient:
- result = CSSLinearGradientValue::create(NonRepeating, gradientType);
- break;
- case CSSDeprecatedRadialGradient:
- result = CSSRadialGradientValue::create(NonRepeating, gradientType);
- break;
- default:
- // The rest of the gradient types shouldn't appear here.
- ASSERT_NOT_REACHED();
- }
-
- // Comma.
- argument = args->next();
- if (!isComma(argument))
- return false;
-
- // Next comes the starting point for the gradient as an x y pair. There is no
- // comma between the x and the y values.
- // First X. It can be left, right, number or percent.
- argument = args->next();
- if (!argument)
- return false;
- RefPtr<CSSPrimitiveValue> point = parseDeprecatedGradientPoint(*argument, true);
- if (!point)
- return false;
- result->setFirstX(point.releaseNonNull());
-
- // First Y. It can be top, bottom, number or percent.
- argument = args->next();
- if (!argument)
- return false;
- point = parseDeprecatedGradientPoint(*argument, false);
- if (!point)
- return false;
- result->setFirstY(point.releaseNonNull());
-
- // Comma after the first point.
- argument = args->next();
- if (!isComma(argument))
- return false;
-
- // For radial gradients only, we now expect a numeric radius.
- if (gradientType == CSSDeprecatedRadialGradient) {
- argument = args->next();
- // FIXME: This does not handle calculation values.
- if (!argument || argument->unit != CSSPrimitiveValue::CSS_NUMBER)
- return false;
- ValueWithCalculation argumentWithCalculation(*argument);
- downcast<CSSRadialGradientValue>(*result).setFirstRadius(createPrimitiveNumericValue(argumentWithCalculation));
-
- // Comma after the first radius.
- argument = args->next();
- if (!isComma(argument))
- return false;
- }
-
- // Next is the ending point for the gradient as an x, y pair.
- // Second X. It can be left, right, number or percent.
- argument = args->next();
- if (!argument)
- return false;
- point = parseDeprecatedGradientPoint(*argument, true);
- if (!point)
- return false;
- result->setSecondX(point.releaseNonNull());
-
- // Second Y. It can be top, bottom, number or percent.
- argument = args->next();
- if (!argument)
- return false;
- point = parseDeprecatedGradientPoint(*argument, false);
- if (!point)
- return false;
- result->setSecondY(point.releaseNonNull());
-
- // For radial gradients only, we now expect the second radius.
- if (gradientType == CSSDeprecatedRadialGradient) {
- // Comma after the second point.
- argument = args->next();
- if (!isComma(argument))
- return false;
-
- argument = args->next();
- // FIXME: This does not handle calculation values.
- if (!argument || argument->unit != CSSPrimitiveValue::CSS_NUMBER)
- return false;
- ValueWithCalculation argumentWithCalculation(*argument);
- downcast<CSSRadialGradientValue>(*result).setSecondRadius(createPrimitiveNumericValue(argumentWithCalculation));
- }
-
- // We now will accept any number of stops (0 or more).
- argument = args->next();
- while (argument) {
- // Look for the comma before the next stop.
- if (!isComma(argument))
- return false;
-
- // Now examine the stop itself.
- argument = args->next();
- if (!argument)
- return false;
-
- // The function name needs to be one of "from", "to", or "color-stop."
- CSSGradientColorStop stop;
- if (!parseDeprecatedGradientColorStop(*this, *argument, stop))
- return false;
- result->addStop(stop);
-
- // Advance
- argument = args->next();
- }
-
- gradient = WTFMove(result);
- return true;
-}
-
-static RefPtr<CSSPrimitiveValue> valueFromSideKeyword(CSSParserValue& value, bool& isHorizontal)
-{
- if (value.unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
-
- switch (value.id) {
- case CSSValueLeft:
- case CSSValueRight:
- isHorizontal = true;
- break;
- case CSSValueTop:
- case CSSValueBottom:
- isHorizontal = false;
- break;
- default:
- return nullptr;
- }
- return CSSValuePool::singleton().createIdentifierValue(value.id);
-}
-
-static RefPtr<CSSPrimitiveValue> parseGradientColorOrKeyword(CSSParser& parser, CSSParserValue& value)
-{
- CSSValueID id = value.id;
- if (id == CSSValueWebkitText || CSSParser::isValidSystemColorValue(id) || id == CSSValueMenu || id == CSSValueCurrentcolor)
- return CSSValuePool::singleton().createIdentifierValue(id);
-
- return parser.parseColor(&value);
-}
-
-bool CSSParser::parseDeprecatedLinearGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
-{
- auto result = CSSLinearGradientValue::create(repeating, CSSPrefixedLinearGradient);
-
- // Walk the arguments.
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- CSSParserValue* argument = args->current();
- if (!argument)
- return false;
- ValueWithCalculation argumentWithCalculation(*argument);
-
- bool expectComma = false;
- // Look for angle.
- if (validateUnit(argumentWithCalculation, FAngle, CSSStrictMode)) {
- result->setAngle(createPrimitiveNumericValue(argumentWithCalculation));
-
- args->next();
- expectComma = true;
- } else {
- // Look one or two optional keywords that indicate a side or corner.
- RefPtr<CSSPrimitiveValue> startX, startY;
- bool isHorizontal = false;
- if (RefPtr<CSSPrimitiveValue> location = valueFromSideKeyword(*argument, isHorizontal)) {
- if (isHorizontal)
- startX = WTFMove(location);
- else
- startY = WTFMove(location);
-
- if ((argument = args->next())) {
- if ((location = valueFromSideKeyword(*argument, isHorizontal))) {
- if (isHorizontal) {
- if (startX)
- return false;
- startX = WTFMove(location);
- } else {
- if (startY)
- return false;
- startY = WTFMove(location);
- }
-
- args->next();
- }
- }
-
- expectComma = true;
- }
-
- if (!startX && !startY)
- startY = CSSValuePool::singleton().createIdentifierValue(CSSValueTop);
-
- result->setFirstX(WTFMove(startX));
- result->setFirstY(WTFMove(startY));
- }
-
- if (!parseGradientColorStops(*args, result, expectComma))
- return false;
-
- if (!result->stopCount())
- return false;
-
- gradient = WTFMove(result);
- return true;
-}
-
-bool CSSParser::parseDeprecatedRadialGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
-{
- auto result = CSSRadialGradientValue::create(repeating, CSSPrefixedRadialGradient);
-
- // Walk the arguments.
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- CSSParserValue* argument = args->current();
- if (!argument)
- return false;
-
- bool expectComma = false;
-
- // Optional background-position
- RefPtr<CSSPrimitiveValue> centerX;
- RefPtr<CSSPrimitiveValue> centerY;
- // parse2ValuesFillPosition advances the args next pointer.
- parse2ValuesFillPosition(*args, centerX, centerY);
- argument = args->current();
- if (!argument)
- return false;
-
- if (centerX || centerY) {
- // Comma
- if (!isComma(argument))
- return false;
-
- argument = args->next();
- if (!argument)
- return false;
- }
-
- result->setFirstX(centerX.copyRef());
- result->setSecondX(WTFMove(centerX));
- // CSS3 radial gradients always share the same start and end point.
- result->setFirstY(centerY.copyRef());
- result->setSecondY(WTFMove(centerY));
-
- RefPtr<CSSPrimitiveValue> shapeValue;
- RefPtr<CSSPrimitiveValue> sizeValue;
-
- // Optional shape and/or size in any order.
- for (int i = 0; i < 2; ++i) {
- if (argument->unit != CSSPrimitiveValue::CSS_IDENT)
- break;
-
- bool foundValue = false;
- switch (argument->id) {
- case CSSValueCircle:
- case CSSValueEllipse:
- shapeValue = CSSValuePool::singleton().createIdentifierValue(argument->id);
- foundValue = true;
- break;
- case CSSValueClosestSide:
- case CSSValueClosestCorner:
- case CSSValueFarthestSide:
- case CSSValueFarthestCorner:
- case CSSValueContain:
- case CSSValueCover:
- sizeValue = CSSValuePool::singleton().createIdentifierValue(argument->id);
- foundValue = true;
- break;
- default:
- break;
- }
-
- if (foundValue) {
- argument = args->next();
- if (!argument)
- return false;
-
- expectComma = true;
- }
- }
-
- result->setShape(shapeValue.copyRef());
- result->setSizingBehavior(sizeValue.copyRef());
-
- // Or, two lengths or percentages
- RefPtr<CSSPrimitiveValue> horizontalSize;
- RefPtr<CSSPrimitiveValue> verticalSize;
-
- if (!shapeValue && !sizeValue) {
- ValueWithCalculation hSizeWithCalculation(*argument);
- if (validateUnit(hSizeWithCalculation, FLength | FPercent)) {
- horizontalSize = createPrimitiveNumericValue(hSizeWithCalculation);
- argument = args->next();
- if (!argument)
- return false;
-
- expectComma = true;
- }
-
- ValueWithCalculation vSizeWithCalculation(*argument);
- if (validateUnit(vSizeWithCalculation, FLength | FPercent)) {
- verticalSize = createPrimitiveNumericValue(vSizeWithCalculation);
-
- argument = args->next();
- if (!argument)
- return false;
- expectComma = true;
- }
- }
-
- // Must have neither or both.
- if (!horizontalSize != !verticalSize)
- return false;
-
- result->setEndHorizontalSize(WTFMove(horizontalSize));
- result->setEndVerticalSize(WTFMove(verticalSize));
-
- if (!parseGradientColorStops(*args, result, expectComma))
- return false;
-
- gradient = WTFMove(result);
- return true;
-}
-
-bool CSSParser::parseLinearGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
-{
- auto result = CSSLinearGradientValue::create(repeating, CSSLinearGradient);
-
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- if (!args->current())
- return false;
-
- ValueWithCalculation firstArgumentWithCalculation(*args->current());
-
- bool expectComma = false;
- // Look for angle.
- if (validateUnit(firstArgumentWithCalculation, FAngle, CSSStrictMode)) {
- result->setAngle(createPrimitiveNumericValue(firstArgumentWithCalculation));
-
- args->next();
- expectComma = true;
- } else if (firstArgumentWithCalculation.value().unit == CSSPrimitiveValue::CSS_IDENT && equalLettersIgnoringASCIICase(firstArgumentWithCalculation, "to")) {
- // to [ [left | right] || [top | bottom] ]
- CSSParserValue* nextArgument = args->next();
- if (!nextArgument)
- return false;
-
- bool isHorizontal = false;
- RefPtr<CSSPrimitiveValue> location = valueFromSideKeyword(*nextArgument, isHorizontal);
- if (!location)
- return false;
-
- RefPtr<CSSPrimitiveValue> endX, endY;
- if (isHorizontal)
- endX = WTFMove(location);
- else
- endY = WTFMove(location);
-
- nextArgument = args->next();
- if (!nextArgument)
- return false;
-
- location = valueFromSideKeyword(*nextArgument, isHorizontal);
- if (location) {
- if (isHorizontal) {
- if (endX)
- return false;
- endX = WTFMove(location);
- } else {
- if (endY)
- return false;
- endY = WTFMove(location);
- }
-
- args->next();
- }
-
- expectComma = true;
- result->setFirstX(WTFMove(endX));
- result->setFirstY(WTFMove(endY));
- }
-
- if (!parseGradientColorStops(*args, result, expectComma))
- return false;
-
- if (!result->stopCount())
- return false;
-
- gradient = WTFMove(result);
- return true;
-}
-
-bool CSSParser::parseRadialGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
-{
- auto result = CSSRadialGradientValue::create(repeating, CSSRadialGradient);
-
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- CSSParserValue* argument = args->current();
- if (!argument)
- return false;
-
- bool expectComma = false;
-
- RefPtr<CSSPrimitiveValue> shapeValue;
- RefPtr<CSSPrimitiveValue> sizeValue;
- RefPtr<CSSPrimitiveValue> horizontalSize;
- RefPtr<CSSPrimitiveValue> verticalSize;
-
- // First part of grammar, the size/shape clause:
- // [ circle || <length> ] |
- // [ ellipse || [ <length> | <percentage> ]{2} ] |
- // [ [ circle | ellipse] || <size-keyword> ]
- for (int i = 0; i < 3; ++i) {
- ValueWithCalculation argumentWithCalculation(*argument);
- if (argument->unit == CSSPrimitiveValue::CSS_IDENT) {
- bool badIdent = false;
- switch (argument->id) {
- case CSSValueCircle:
- case CSSValueEllipse:
- if (shapeValue)
- return false;
- shapeValue = CSSValuePool::singleton().createIdentifierValue(argument->id);
- break;
- case CSSValueClosestSide:
- case CSSValueClosestCorner:
- case CSSValueFarthestSide:
- case CSSValueFarthestCorner:
- if (sizeValue || horizontalSize)
- return false;
- sizeValue = CSSValuePool::singleton().createIdentifierValue(argument->id);
- break;
- default:
- badIdent = true;
- }
-
- if (badIdent)
- break;
-
- argument = args->next();
- if (!argument)
- return false;
- } else if (validateUnit(argumentWithCalculation, FLength | FPercent)) {
-
- if (sizeValue || horizontalSize)
- return false;
- horizontalSize = createPrimitiveNumericValue(argumentWithCalculation);
-
- argument = args->next();
- if (!argument)
- return false;
-
- ValueWithCalculation vSizeWithCalculation(*argument);
- if (validateUnit(vSizeWithCalculation, FLength | FPercent)) {
- verticalSize = createPrimitiveNumericValue(vSizeWithCalculation);
- ++i;
- argument = args->next();
- if (!argument)
- return false;
- }
- } else
- break;
- }
-
- // You can specify size as a keyword or a length/percentage, not both.
- if (sizeValue && horizontalSize)
- return false;
- // Circles must have 0 or 1 lengths.
- if (shapeValue && shapeValue->getValueID() == CSSValueCircle && verticalSize)
- return false;
- // Ellipses must have 0 or 2 length/percentages.
- if (shapeValue && shapeValue->getValueID() == CSSValueEllipse && horizontalSize && !verticalSize)
- return false;
- // If there's only one size, it must be a length.
- if (!verticalSize && horizontalSize && horizontalSize->isPercentage())
- return false;
-
- result->setShape(shapeValue.copyRef());
- result->setSizingBehavior(sizeValue.copyRef());
- result->setEndHorizontalSize(horizontalSize.copyRef());
- result->setEndVerticalSize(verticalSize.copyRef());
-
- // Second part of grammar, the center-position clause:
- // at <position>
- RefPtr<CSSPrimitiveValue> centerX;
- RefPtr<CSSPrimitiveValue> centerY;
- if (argument->unit == CSSPrimitiveValue::CSS_IDENT && equalLettersIgnoringASCIICase(*argument, "at")) {
- argument = args->next();
- if (!argument)
- return false;
-
- parseFillPosition(*args, centerX, centerY);
- if (!(centerX && centerY))
- return false;
-
- argument = args->current();
- if (!argument)
- return false;
-
- result->setFirstX(centerX.copyRef());
- result->setFirstY(centerY.copyRef());
- // Right now, CSS radial gradients have the same start and end centers.
- result->setSecondX(centerX.copyRef());
- result->setSecondY(centerY.copyRef());
- }
-
- if (shapeValue || sizeValue || horizontalSize || centerX || centerY)
- expectComma = true;
-
- if (!parseGradientColorStops(*args, result, expectComma))
- return false;
-
- gradient = WTFMove(result);
- return true;
-}
-
-bool CSSParser::parseGradientColorStops(CSSParserValueList& valueList, CSSGradientValue& gradient, bool expectComma)
-{
- CSSParserValue* value = valueList.current();
- bool previousStopWasMidpoint = true;
-
- // Now look for color stops.
- while (value) {
- // Look for the comma before the next stop.
- if (expectComma) {
- if (!isComma(value))
- return false;
-
- value = valueList.next();
- if (!value)
- return false;
- }
-
- // <color-stop> = <color> [ <percentage> | <length> ]?
- CSSGradientColorStop stop;
- stop.m_color = parseGradientColorOrKeyword(*this, *value);
- if (!stop.m_color) {
- if (previousStopWasMidpoint) // 2 midpoints in a row is not allowed. This also catches starting with a midpoint.
- return false;
-
- stop.isMidpoint = true;
- } else
- value = valueList.next();
-
- previousStopWasMidpoint = stop.isMidpoint;
-
- if (value) {
- ValueWithCalculation valueWithCalculation(*value);
- if (validateUnit(valueWithCalculation, FLength | FPercent)) {
- stop.m_position = createPrimitiveNumericValue(valueWithCalculation);
- value = valueList.next();
- } else if (stop.isMidpoint)
- return false;
- }
-
- gradient.addStop(stop);
- expectComma = true;
- }
-
- // We can't end on a midpoint.
- if (previousStopWasMidpoint)
- return false;
-
- // Must have 2 or more stops to be valid.
- return gradient.stopCount() >= 2;
-}
-
-bool CSSParser::isGeneratedImageValue(CSSParserValue& value) const
-{
- if (value.unit != CSSParserValue::Function)
- return false;
-
- return equalLettersIgnoringASCIICase(value.function->name, "-webkit-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-linear-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "linear-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-repeating-linear-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "repeating-linear-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-radial-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "radial-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-repeating-radial-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "repeating-radial-gradient(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-canvas(")
- || equalLettersIgnoringASCIICase(value.function->name, "cross-fade(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-cross-fade(")
- || equalLettersIgnoringASCIICase(value.function->name, "filter(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-filter(")
- || equalLettersIgnoringASCIICase(value.function->name, "-webkit-named-image(");
-}
-
-bool CSSParser::parseGeneratedImage(CSSParserValueList& valueList, RefPtr<CSSValue>& value)
-{
- CSSParserValue& parserValue = *valueList.current();
-
- if (parserValue.unit != CSSParserValue::Function)
- return false;
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-gradient("))
- return parseDeprecatedGradient(valueList, value);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-linear-gradient("))
- return parseDeprecatedLinearGradient(valueList, value, NonRepeating);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "linear-gradient("))
- return parseLinearGradient(valueList, value, NonRepeating);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-repeating-linear-gradient("))
- return parseDeprecatedLinearGradient(valueList, value, Repeating);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "repeating-linear-gradient("))
- return parseLinearGradient(valueList, value, Repeating);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-radial-gradient("))
- return parseDeprecatedRadialGradient(valueList, value, NonRepeating);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "radial-gradient("))
- return parseRadialGradient(valueList, value, NonRepeating);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-repeating-radial-gradient("))
- return parseDeprecatedRadialGradient(valueList, value, Repeating);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "repeating-radial-gradient("))
- return parseRadialGradient(valueList, value, Repeating);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-canvas("))
- return parseCanvas(valueList, value);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-cross-fade("))
- return parseCrossfade(valueList, value, true);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "cross-fade("))
- return parseCrossfade(valueList, value, false);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "filter(") || equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-filter("))
- return parseFilterImage(valueList, value);
-
- if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-named-image("))
- return parseNamedImage(valueList, value);
-
- return false;
-}
-
-bool CSSParser::parseFilterImage(CSSParserValueList& valueList, RefPtr<CSSValue>& filter)
-{
- // Walk the arguments.
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args)
- return false;
- CSSParserValue* value = args->current();
- if (!value)
- return false;
-
- // The first argument is the image. It is a fill image.
- RefPtr<CSSValue> imageValue;
- if (!parseFillImage(*args, imageValue)) {
- if (value->unit == CSSPrimitiveValue::CSS_STRING)
- imageValue = CSSImageValue::create(completeURL(value->string));
- else
- return false;
- }
-
- value = args->next();
-
- // Skip a comma
- if (!isComma(value))
- return false;
- value = args->next();
-
- RefPtr<CSSValueList> filterValue;
- if (!value || !parseFilter(*args, filterValue))
- return false;
- value = args->next();
-
- filter = CSSFilterImageValue::create(imageValue.releaseNonNull(), filterValue.releaseNonNull());
-
- return true;
-}
-
-bool CSSParser::parseCrossfade(CSSParserValueList& valueList, RefPtr<CSSValue>& crossfade, bool prefixed)
-{
- // Walk the arguments.
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args || args->size() != 5)
- return false;
-
- CSSParserValue* argument = args->current();
-
- // The first argument is the "from" image. It is a fill image.
- RefPtr<CSSValue> fromImageValue;
- if (!argument || !parseFillImage(*args, fromImageValue))
- return false;
- argument = args->next();
-
- // Skip a comma
- if (!isComma(argument))
- return false;
- argument = args->next();
-
- // The second argument is the "to" image. It is a fill image.
- RefPtr<CSSValue> toImageValue;
- if (!argument || !parseFillImage(*args, toImageValue))
- return false;
- argument = args->next();
-
- // Skip a comma
- if (!isComma(argument))
- return false;
- argument = args->next();
-
- // The third argument is the crossfade value. It is a percentage or a fractional number.
- if (!argument)
- return false;
-
- RefPtr<CSSPrimitiveValue> percentage;
- if (argument->unit == CSSPrimitiveValue::CSS_PERCENTAGE)
- percentage = CSSValuePool::singleton().createValue(clampTo<double>(argument->fValue / 100, 0, 1), CSSPrimitiveValue::CSS_NUMBER);
- else if (argument->unit == CSSPrimitiveValue::CSS_NUMBER)
- percentage = CSSValuePool::singleton().createValue(clampTo<double>(argument->fValue, 0, 1), CSSPrimitiveValue::CSS_NUMBER);
- else
- return false;
-
- crossfade = CSSCrossfadeValue::create(fromImageValue.releaseNonNull(), toImageValue.releaseNonNull(), percentage.releaseNonNull(), prefixed);
-
- return true;
-}
-
-bool CSSParser::parseCanvas(CSSParserValueList& valueList, RefPtr<CSSValue>& canvas)
-{
- // Walk the arguments.
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args || args->size() != 1)
- return false;
-
- // The first argument is the canvas name. It is an identifier.
- CSSParserValue* value = args->current();
- if (!value || value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- canvas = CSSCanvasValue::create(value->string);
- return true;
-}
-
-bool CSSParser::parseNamedImage(CSSParserValueList& valueList, RefPtr<CSSValue>& namedImage)
-{
- CSSParserValueList* args = valueList.current()->function->args.get();
- if (!args || args->size() != 1)
- return false;
-
- // The only argument is the image name.
- CSSParserValue* value = args->current();
- if (!value || value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- namedImage = CSSNamedImageValue::create(value->string);
- return true;
-}
-
-#if ENABLE(CSS_IMAGE_RESOLUTION)
-RefPtr<CSSValueList> CSSParser::parseImageResolution()
-{
- auto list = CSSValueList::createSpaceSeparated();
- bool haveResolution = false;
- bool haveFromImage = false;
- bool haveSnap = false;
-
- CSSParserValue* value = m_valueList->current();
- while (value) {
- ValueWithCalculation valueWithCalculation(*value);
- if (!haveFromImage && value->id == CSSValueFromImage) {
- list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
- haveFromImage = true;
- } else if (!haveSnap && value->id == CSSValueSnap) {
- list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
- haveSnap = true;
- } else if (!haveResolution && validateUnit(valueWithCalculation, FResolution | FNonNeg) && value->fValue > 0) {
- list->append(createPrimitiveNumericValue(valueWithCalculation));
- haveResolution = true;
- } else
- return nullptr;
- value = m_valueList->next();
- }
- if (!list->length())
- return nullptr;
- if (!haveFromImage && !haveResolution)
- return nullptr;
- return WTFMove(list);
-}
-#endif
-
-RefPtr<CSSImageSetValue> CSSParser::parseImageSet()
-{
- CSSParserValue& value = *m_valueList->current();
- ASSERT(value.unit == CSSParserValue::Function);
-
- CSSParserValueList* functionArgs = value.function->args.get();
- if (!functionArgs || !functionArgs->size() || !functionArgs->current())
- return nullptr;
-
- auto imageSet = CSSImageSetValue::create();
- CSSParserValue* arg = functionArgs->current();
- while (arg) {
- if (arg->unit != CSSPrimitiveValue::CSS_URI)
- return nullptr;
-
- imageSet->append(CSSImageValue::create(completeURL(arg->string)));
- arg = functionArgs->next();
- if (!arg || arg->unit != CSSPrimitiveValue::CSS_DIMENSION)
- return nullptr;
-
- double imageScaleFactor = 0;
- const String& string = arg->string;
- unsigned length = string.length();
- if (!length)
- return nullptr;
- if (string.is8Bit()) {
- const LChar* start = string.characters8();
- parseDouble(start, start + length, 'x', imageScaleFactor);
- } else {
- const UChar* start = string.characters16();
- parseDouble(start, start + length, 'x', imageScaleFactor);
- }
- if (imageScaleFactor <= 0)
- return nullptr;
- imageSet->append(CSSValuePool::singleton().createValue(imageScaleFactor, CSSPrimitiveValue::CSS_NUMBER));
-
- // If there are no more arguments, we're done.
- arg = functionArgs->next();
- if (!arg)
- break;
-
- // If there are more arguments, they should be after a comma.
- if (!isComma(arg))
- return nullptr;
-
- // Skip the comma and move on to the next argument.
- arg = functionArgs->next();
- }
-
- return WTFMove(imageSet);
-}
-
-class TransformOperationInfo {
-public:
- TransformOperationInfo(const CSSParserString& name)
- : m_type(WebKitCSSTransformValue::UnknownTransformOperation)
- , m_argCount(1)
- , m_allowSingleArgument(false)
- , m_unit(CSSParser::FUnknown)
- {
- const UChar* characters;
- unsigned nameLength = name.length();
-
- const unsigned longestNameLength = 12;
- UChar characterBuffer[longestNameLength];
- if (name.is8Bit()) {
- unsigned length = std::min(longestNameLength, nameLength);
- const LChar* characters8 = name.characters8();
- for (unsigned i = 0; i < length; ++i)
- characterBuffer[i] = characters8[i];
- characters = characterBuffer;
- } else
- characters = name.characters16();
-
- switch (nameLength) {
- case 5:
- // Valid name: skew(.
- if (((characters[0] == 's') || (characters[0] == 'S'))
- & ((characters[1] == 'k') || (characters[1] == 'K'))
- & ((characters[2] == 'e') || (characters[2] == 'E'))
- & ((characters[3] == 'w') || (characters[3] == 'W'))
- & (characters[4] == '(')) {
- m_unit = CSSParser::FAngle;
- m_type = WebKitCSSTransformValue::SkewTransformOperation;
- m_allowSingleArgument = true;
- m_argCount = 3;
- }
- break;
- case 6:
- // Valid names: skewx(, skewy(, scale(.
- if ((characters[1] == 'c') || (characters[1] == 'C')) {
- if (((characters[0] == 's') || (characters[0] == 'S'))
- & ((characters[2] == 'a') || (characters[2] == 'A'))
- & ((characters[3] == 'l') || (characters[3] == 'L'))
- & ((characters[4] == 'e') || (characters[4] == 'E'))
- & (characters[5] == '(')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::ScaleTransformOperation;
- m_allowSingleArgument = true;
- m_argCount = 3;
- }
- } else if (((characters[0] == 's') || (characters[0] == 'S'))
- & ((characters[1] == 'k') || (characters[1] == 'K'))
- & ((characters[2] == 'e') || (characters[2] == 'E'))
- & ((characters[3] == 'w') || (characters[3] == 'W'))
- & (characters[5] == '(')) {
- if ((characters[4] == 'x') || (characters[4] == 'X')) {
- m_unit = CSSParser::FAngle;
- m_type = WebKitCSSTransformValue::SkewXTransformOperation;
- } else if ((characters[4] == 'y') || (characters[4] == 'Y')) {
- m_unit = CSSParser::FAngle;
- m_type = WebKitCSSTransformValue::SkewYTransformOperation;
- }
- }
- break;
- case 7:
- // Valid names: matrix(, rotate(, scalex(, scaley(, scalez(.
- if ((characters[0] == 'm') || (characters[0] == 'M')) {
- if (((characters[1] == 'a') || (characters[1] == 'A'))
- & ((characters[2] == 't') || (characters[2] == 'T'))
- & ((characters[3] == 'r') || (characters[3] == 'R'))
- & ((characters[4] == 'i') || (characters[4] == 'I'))
- & ((characters[5] == 'x') || (characters[5] == 'X'))
- & (characters[6] == '(')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::MatrixTransformOperation;
- m_argCount = 11;
- }
- } else if ((characters[0] == 'r') || (characters[0] == 'R')) {
- if (((characters[1] == 'o') || (characters[1] == 'O'))
- & ((characters[2] == 't') || (characters[2] == 'T'))
- & ((characters[3] == 'a') || (characters[3] == 'A'))
- & ((characters[4] == 't') || (characters[4] == 'T'))
- & ((characters[5] == 'e') || (characters[5] == 'E'))
- & (characters[6] == '(')) {
- m_unit = CSSParser::FAngle;
- m_type = WebKitCSSTransformValue::RotateTransformOperation;
- }
- } else if (((characters[0] == 's') || (characters[0] == 'S'))
- & ((characters[1] == 'c') || (characters[1] == 'C'))
- & ((characters[2] == 'a') || (characters[2] == 'A'))
- & ((characters[3] == 'l') || (characters[3] == 'L'))
- & ((characters[4] == 'e') || (characters[4] == 'E'))
- & (characters[6] == '(')) {
- if ((characters[5] == 'x') || (characters[5] == 'X')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::ScaleXTransformOperation;
- } else if ((characters[5] == 'y') || (characters[5] == 'Y')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::ScaleYTransformOperation;
- } else if ((characters[5] == 'z') || (characters[5] == 'Z')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::ScaleZTransformOperation;
- }
- }
- break;
- case 8:
- // Valid names: rotatex(, rotatey(, rotatez(, scale3d(.
- if ((characters[0] == 's') || (characters[0] == 'S')) {
- if (((characters[1] == 'c') || (characters[1] == 'C'))
- & ((characters[2] == 'a') || (characters[2] == 'A'))
- & ((characters[3] == 'l') || (characters[3] == 'L'))
- & ((characters[4] == 'e') || (characters[4] == 'E'))
- & (characters[5] == '3')
- & ((characters[6] == 'd') || (characters[6] == 'D'))
- & (characters[7] == '(')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::Scale3DTransformOperation;
- m_argCount = 5;
- }
- } else if (((characters[0] == 'r') || (characters[0] == 'R'))
- & ((characters[1] == 'o') || (characters[1] == 'O'))
- & ((characters[2] == 't') || (characters[2] == 'T'))
- & ((characters[3] == 'a') || (characters[3] == 'A'))
- & ((characters[4] == 't') || (characters[4] == 'T'))
- & ((characters[5] == 'e') || (characters[5] == 'E'))
- & (characters[7] == '(')) {
- if ((characters[6] == 'x') || (characters[6] == 'X')) {
- m_unit = CSSParser::FAngle;
- m_type = WebKitCSSTransformValue::RotateXTransformOperation;
- } else if ((characters[6] == 'y') || (characters[6] == 'Y')) {
- m_unit = CSSParser::FAngle;
- m_type = WebKitCSSTransformValue::RotateYTransformOperation;
- } else if ((characters[6] == 'z') || (characters[6] == 'Z')) {
- m_unit = CSSParser::FAngle;
- m_type = WebKitCSSTransformValue::RotateZTransformOperation;
- }
- }
- break;
- case 9:
- // Valid names: matrix3d(, rotate3d(.
- if ((characters[0] == 'm') || (characters[0] == 'M')) {
- if (((characters[1] == 'a') || (characters[1] == 'A'))
- & ((characters[2] == 't') || (characters[2] == 'T'))
- & ((characters[3] == 'r') || (characters[3] == 'R'))
- & ((characters[4] == 'i') || (characters[4] == 'I'))
- & ((characters[5] == 'x') || (characters[5] == 'X'))
- & (characters[6] == '3')
- & ((characters[7] == 'd') || (characters[7] == 'D'))
- & (characters[8] == '(')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::Matrix3DTransformOperation;
- m_argCount = 31;
- }
- } else if (((characters[0] == 'r') || (characters[0] == 'R'))
- & ((characters[1] == 'o') || (characters[1] == 'O'))
- & ((characters[2] == 't') || (characters[2] == 'T'))
- & ((characters[3] == 'a') || (characters[3] == 'A'))
- & ((characters[4] == 't') || (characters[4] == 'T'))
- & ((characters[5] == 'e') || (characters[5] == 'E'))
- & (characters[6] == '3')
- & ((characters[7] == 'd') || (characters[7] == 'D'))
- & (characters[8] == '(')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::Rotate3DTransformOperation;
- m_argCount = 7;
- }
- break;
- case 10:
- // Valid name: translate(.
- if (((characters[0] == 't') || (characters[0] == 'T'))
- & ((characters[1] == 'r') || (characters[1] == 'R'))
- & ((characters[2] == 'a') || (characters[2] == 'A'))
- & ((characters[3] == 'n') || (characters[3] == 'N'))
- & ((characters[4] == 's') || (characters[4] == 'S'))
- & ((characters[5] == 'l') || (characters[5] == 'L'))
- & ((characters[6] == 'a') || (characters[6] == 'A'))
- & ((characters[7] == 't') || (characters[7] == 'T'))
- & ((characters[8] == 'e') || (characters[8] == 'E'))
- & (characters[9] == '(')) {
- m_unit = CSSParser::FLength | CSSParser::FPercent;
- m_type = WebKitCSSTransformValue::TranslateTransformOperation;
- m_allowSingleArgument = true;
- m_argCount = 3;
- }
- break;
- case 11:
- // Valid names: translatex(, translatey(, translatez(.
- if (((characters[0] == 't') || (characters[0] == 'T'))
- & ((characters[1] == 'r') || (characters[1] == 'R'))
- & ((characters[2] == 'a') || (characters[2] == 'A'))
- & ((characters[3] == 'n') || (characters[3] == 'N'))
- & ((characters[4] == 's') || (characters[4] == 'S'))
- & ((characters[5] == 'l') || (characters[5] == 'L'))
- & ((characters[6] == 'a') || (characters[6] == 'A'))
- & ((characters[7] == 't') || (characters[7] == 'T'))
- & ((characters[8] == 'e') || (characters[8] == 'E'))
- & (characters[10] == '(')) {
- if ((characters[9] == 'x') || (characters[9] == 'X')) {
- m_unit = CSSParser::FLength | CSSParser::FPercent;
- m_type = WebKitCSSTransformValue::TranslateXTransformOperation;
- } else if ((characters[9] == 'y') || (characters[9] == 'Y')) {
- m_unit = CSSParser::FLength | CSSParser::FPercent;
- m_type = WebKitCSSTransformValue::TranslateYTransformOperation;
- } else if ((characters[9] == 'z') || (characters[9] == 'Z')) {
- m_unit = CSSParser::FLength | CSSParser::FPercent;
- m_type = WebKitCSSTransformValue::TranslateZTransformOperation;
- }
- }
- break;
- case 12:
- // Valid names: perspective(, translate3d(.
- if ((characters[0] == 'p') || (characters[0] == 'P')) {
- if (((characters[1] == 'e') || (characters[1] == 'E'))
- & ((characters[2] == 'r') || (characters[2] == 'R'))
- & ((characters[3] == 's') || (characters[3] == 'S'))
- & ((characters[4] == 'p') || (characters[4] == 'P'))
- & ((characters[5] == 'e') || (characters[5] == 'E'))
- & ((characters[6] == 'c') || (characters[6] == 'C'))
- & ((characters[7] == 't') || (characters[7] == 'T'))
- & ((characters[8] == 'i') || (characters[8] == 'I'))
- & ((characters[9] == 'v') || (characters[9] == 'V'))
- & ((characters[10] == 'e') || (characters[10] == 'E'))
- & (characters[11] == '(')) {
- m_unit = CSSParser::FNumber;
- m_type = WebKitCSSTransformValue::PerspectiveTransformOperation;
- }
- } else if (((characters[0] == 't') || (characters[0] == 'T'))
- & ((characters[1] == 'r') || (characters[1] == 'R'))
- & ((characters[2] == 'a') || (characters[2] == 'A'))
- & ((characters[3] == 'n') || (characters[3] == 'N'))
- & ((characters[4] == 's') || (characters[4] == 'S'))
- & ((characters[5] == 'l') || (characters[5] == 'L'))
- & ((characters[6] == 'a') || (characters[6] == 'A'))
- & ((characters[7] == 't') || (characters[7] == 'T'))
- & ((characters[8] == 'e') || (characters[8] == 'E'))
- & (characters[9] == '3')
- & ((characters[10] == 'd') || (characters[10] == 'D'))
- & (characters[11] == '(')) {
- m_unit = CSSParser::FLength | CSSParser::FPercent;
- m_type = WebKitCSSTransformValue::Translate3DTransformOperation;
- m_argCount = 5;
- }
- break;
- } // end switch ()
- }
-
- WebKitCSSTransformValue::TransformOperationType type() const { return m_type; }
- unsigned argCount() const { return m_argCount; }
- CSSParser::Units unit() const { return m_unit; }
-
- bool unknown() const { return m_type == WebKitCSSTransformValue::UnknownTransformOperation; }
- bool hasCorrectArgCount(unsigned argCount) { return m_argCount == argCount || (m_allowSingleArgument && argCount == 1); }
-
-private:
- WebKitCSSTransformValue::TransformOperationType m_type;
- unsigned m_argCount;
- bool m_allowSingleArgument;
- CSSParser::Units m_unit;
-};
-
-RefPtr<CSSValueList> CSSParser::parseTransform()
-{
- if (!m_valueList)
- return nullptr;
-
- auto list = CSSValueList::createSpaceSeparated();
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- auto parsedTransformValue = parseTransformValue(*value);
- if (!parsedTransformValue)
- return nullptr;
-
- list->append(parsedTransformValue.releaseNonNull());
- }
-
- return WTFMove(list);
-}
-
-RefPtr<WebKitCSSTransformValue> CSSParser::parseTransformValue(CSSParserValue& value)
-{
- if (value.unit != CSSParserValue::Function || !value.function)
- return nullptr;
-
- // Every primitive requires at least one argument.
- CSSParserValueList* args = value.function->args.get();
- if (!args)
- return nullptr;
-
- // See if the specified primitive is one we understand.
- TransformOperationInfo info(value.function->name);
- if (info.unknown())
- return nullptr;
-
- if (!info.hasCorrectArgCount(args->size()))
- return nullptr;
-
- // The transform is a list of functional primitives that specify transform operations.
- // We collect a list of WebKitCSSTransformValues, where each value specifies a single operation.
-
- // Create the new WebKitCSSTransformValue for this operation and add it to our list.
- auto transformValue = WebKitCSSTransformValue::create(info.type());
-
- // Snag our values.
- CSSParserValue* argument = args->current();
- unsigned argNumber = 0;
- while (argument) {
- ValueWithCalculation argumentWithCalculation(*argument);
- CSSParser::Units unit = info.unit();
-
- if (info.type() == WebKitCSSTransformValue::Rotate3DTransformOperation && argNumber == 3) {
- // 4th param of rotate3d() is an angle rather than a bare number, validate it as such
- if (!validateUnit(argumentWithCalculation, FAngle, CSSStrictMode))
- return nullptr;
- } else if (info.type() == WebKitCSSTransformValue::Translate3DTransformOperation && argNumber == 2) {
- // 3rd param of translate3d() cannot be a percentage
- if (!validateUnit(argumentWithCalculation, FLength, CSSStrictMode))
- return nullptr;
- } else if (info.type() == WebKitCSSTransformValue::TranslateZTransformOperation && !argNumber) {
- // 1st param of translateZ() cannot be a percentage
- if (!validateUnit(argumentWithCalculation, FLength, CSSStrictMode))
- return nullptr;
- } else if (info.type() == WebKitCSSTransformValue::PerspectiveTransformOperation && !argNumber) {
- // 1st param of perspective() must be a non-negative number (deprecated) or length.
- if (!validateUnit(argumentWithCalculation, FNumber | FLength | FNonNeg, CSSStrictMode))
- return nullptr;
- } else if (!validateUnit(argumentWithCalculation, unit, CSSStrictMode))
- return nullptr;
-
- // Add the value to the current transform operation.
- transformValue->append(createPrimitiveNumericValue(argumentWithCalculation));
-
- argument = args->next();
- if (!argument)
- break;
- if (argument->unit != CSSParserValue::Operator || argument->iValue != ',')
- return nullptr;
- argument = args->next();
-
- ++argNumber;
- }
-
- return WTFMove(transformValue);
-}
-
-bool CSSParser::isBlendMode(CSSValueID valueID)
-{
- return (valueID >= CSSValueMultiply && valueID <= CSSValueLuminosity)
- || valueID == CSSValueNormal
- || valueID == CSSValueOverlay;
-}
-
-bool CSSParser::isCompositeOperator(CSSValueID valueID)
-{
- // FIXME: Add CSSValueDestination and CSSValueLighter when the Compositing spec updates.
- return valueID >= CSSValueClear && valueID <= CSSValueXor;
-}
-
-static void filterInfoForName(const CSSParserString& name, WebKitCSSFilterValue::FilterOperationType& filterType, unsigned& maximumArgumentCount)
-{
- if (equalLettersIgnoringASCIICase(name, "grayscale("))
- filterType = WebKitCSSFilterValue::GrayscaleFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "sepia("))
- filterType = WebKitCSSFilterValue::SepiaFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "saturate("))
- filterType = WebKitCSSFilterValue::SaturateFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "hue-rotate("))
- filterType = WebKitCSSFilterValue::HueRotateFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "invert("))
- filterType = WebKitCSSFilterValue::InvertFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "opacity("))
- filterType = WebKitCSSFilterValue::OpacityFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "brightness("))
- filterType = WebKitCSSFilterValue::BrightnessFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "contrast("))
- filterType = WebKitCSSFilterValue::ContrastFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "blur("))
- filterType = WebKitCSSFilterValue::BlurFilterOperation;
- else if (equalLettersIgnoringASCIICase(name, "drop-shadow(")) {
- filterType = WebKitCSSFilterValue::DropShadowFilterOperation;
- maximumArgumentCount = 4; // x-offset, y-offset, blur-radius, color -- spread and inset style not allowed.
- }
-}
-
-RefPtr<WebKitCSSFilterValue> CSSParser::parseBuiltinFilterArguments(CSSParserValueList& args, WebKitCSSFilterValue::FilterOperationType filterType)
-{
- auto filterValue = WebKitCSSFilterValue::create(filterType);
-
- switch (filterType) {
- case WebKitCSSFilterValue::GrayscaleFilterOperation:
- case WebKitCSSFilterValue::SepiaFilterOperation:
- case WebKitCSSFilterValue::SaturateFilterOperation:
- case WebKitCSSFilterValue::InvertFilterOperation:
- case WebKitCSSFilterValue::OpacityFilterOperation:
- case WebKitCSSFilterValue::ContrastFilterOperation: {
- // One optional argument, 0-1 or 0%-100%, if missing use 100%.
- if (args.size() > 1)
- return nullptr;
-
- if (args.size()) {
- ValueWithCalculation argumentWithCalculation(*args.current());
- if (!validateUnit(argumentWithCalculation, FNumber | FPercent | FNonNeg, CSSStrictMode))
- return nullptr;
-
- auto primitiveValue = createPrimitiveNumericValue(argumentWithCalculation);
-
- // Saturate and Contrast allow values over 100%.
- if (filterType != WebKitCSSFilterValue::SaturateFilterOperation
- && filterType != WebKitCSSFilterValue::ContrastFilterOperation) {
- double maxAllowed = primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE ? 100.0 : 1.0;
- if (primitiveValue->getDoubleValue() > maxAllowed)
- return nullptr;
- }
-
- filterValue->append(WTFMove(primitiveValue));
- }
- break;
- }
- case WebKitCSSFilterValue::BrightnessFilterOperation: {
- // One optional argument, if missing use 100%.
- if (args.size() > 1)
- return nullptr;
-
- if (args.size()) {
- ValueWithCalculation argumentWithCalculation(*args.current());
- if (!validateUnit(argumentWithCalculation, FNumber | FPercent, CSSStrictMode))
- return nullptr;
-
- filterValue->append(createPrimitiveNumericValue(argumentWithCalculation));
- }
- break;
- }
- case WebKitCSSFilterValue::HueRotateFilterOperation: {
- // hue-rotate() takes one optional angle.
- if (args.size() > 1)
- return nullptr;
-
- if (args.size()) {
- ValueWithCalculation argumentWithCalculation(*args.current());
- if (!validateUnit(argumentWithCalculation, FAngle, CSSStrictMode))
- return nullptr;
-
- filterValue->append(createPrimitiveNumericValue(argumentWithCalculation));
- }
- break;
- }
- case WebKitCSSFilterValue::BlurFilterOperation: {
- // Blur takes a single length. Zero parameters are allowed.
- if (args.size() > 1)
- return nullptr;
-
- if (args.size()) {
- ValueWithCalculation argumentWithCalculation(*args.current());
- if (!validateUnit(argumentWithCalculation, FLength | FNonNeg, CSSStrictMode))
- return nullptr;
-
- filterValue->append(createPrimitiveNumericValue(argumentWithCalculation));
- }
- break;
- }
- case WebKitCSSFilterValue::DropShadowFilterOperation: {
- // drop-shadow() takes a single shadow.
- RefPtr<CSSValueList> shadowValueList = parseShadow(args, CSSPropertyFilter);
- if (!shadowValueList || shadowValueList->length() != 1)
- return nullptr;
-
- filterValue->append(*shadowValueList->itemWithoutBoundsCheck(0));
- break;
- }
- default:
- ASSERT_NOT_REACHED();
- }
- return WTFMove(filterValue);
-}
-
-bool CSSParser::parseFilter(CSSParserValueList& valueList, RefPtr<CSSValueList>& result)
-{
- // The filter is a list of functional primitives that specify individual operations.
- auto list = CSSValueList::createSpaceSeparated();
- for (auto* value = valueList.current(); value; value = valueList.next()) {
- if (value->unit != CSSPrimitiveValue::CSS_URI && (value->unit != CSSParserValue::Function || !value->function))
- return false;
-
- WebKitCSSFilterValue::FilterOperationType filterType = WebKitCSSFilterValue::UnknownFilterOperation;
-
- // See if the specified primitive is one we understand.
- if (value->unit == CSSPrimitiveValue::CSS_URI) {
- auto referenceFilterValue = WebKitCSSFilterValue::create(WebKitCSSFilterValue::ReferenceFilterOperation);
- referenceFilterValue->append(CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_URI));
- list->append(WTFMove(referenceFilterValue));
- } else {
- const CSSParserString name = value->function->name;
- unsigned maximumArgumentCount = 1;
-
- filterInfoForName(name, filterType, maximumArgumentCount);
-
- if (filterType == WebKitCSSFilterValue::UnknownFilterOperation)
- return false;
-
- CSSParserValueList* args = value->function->args.get();
- if (!args)
- return false;
-
- RefPtr<WebKitCSSFilterValue> filterValue = parseBuiltinFilterArguments(*args, filterType);
- if (!filterValue)
- return false;
-
- list->append(filterValue.releaseNonNull());
- }
- }
-
- result = WTFMove(list);
-
- return true;
-}
-
-#if ENABLE(CSS_REGIONS)
-static bool validFlowName(const String& flowName)
-{
- return !(equalLettersIgnoringASCIICase(flowName, "auto")
- || equalLettersIgnoringASCIICase(flowName, "default")
- || equalLettersIgnoringASCIICase(flowName, "inherit")
- || equalLettersIgnoringASCIICase(flowName, "initial")
- || equalLettersIgnoringASCIICase(flowName, "none"));
-}
-#endif
-
-#if ENABLE(IOS_TEXT_AUTOSIZING)
-bool CSSParser::isTextAutosizingEnabled() const
-{
- return m_context.textAutosizingEnabled;
-}
-#endif
-
-#if ENABLE(CSS_GRID_LAYOUT)
-bool CSSParser::isCSSGridLayoutEnabled() const
-{
- return m_context.cssGridLayoutEnabled;
-}
-#endif
-
-#if ENABLE(CSS_REGIONS)
-
-// none | <ident>
-bool CSSParser::parseFlowThread(CSSPropertyID propId, bool important)
-{
- ASSERT(propId == CSSPropertyWebkitFlowInto);
-
- if (m_valueList->size() != 1)
- return false;
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- if (value->id == CSSValueNone) {
- addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
- return true;
- }
-
- String inputProperty = String(value->string);
- if (!inputProperty.isEmpty()) {
- if (!validFlowName(inputProperty))
- return false;
- addProperty(propId, CSSValuePool::singleton().createValue(inputProperty, CSSPrimitiveValue::CSS_STRING), important);
- } else
- addProperty(propId, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
-
- return true;
-}
-
-// -webkit-flow-from: none | <ident>
-bool CSSParser::parseRegionThread(CSSPropertyID propId, bool important)
-{
- ASSERT(propId == CSSPropertyWebkitFlowFrom);
-
- if (m_valueList->size() != 1)
- return false;
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- if (value->id == CSSValueNone)
- addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
- else {
- String inputProperty = String(value->string);
- if (!inputProperty.isEmpty()) {
- if (!validFlowName(inputProperty))
- return false;
- addProperty(propId, CSSValuePool::singleton().createValue(inputProperty, CSSPrimitiveValue::CSS_STRING), important);
- } else
- addProperty(propId, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- }
-
- return true;
-}
-#endif
-
-bool CSSParser::parseTransformOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, CSSPropertyID& propId3, RefPtr<CSSPrimitiveValue>& value, RefPtr<CSSPrimitiveValue>& value2, RefPtr<CSSValue>& value3)
-{
- propId1 = propId;
- propId2 = propId;
- propId3 = propId;
- if (propId == CSSPropertyTransformOrigin) {
- propId1 = CSSPropertyTransformOriginX;
- propId2 = CSSPropertyTransformOriginY;
- propId3 = CSSPropertyTransformOriginZ;
- }
-
- switch (propId) {
- case CSSPropertyTransformOrigin:
- if (!parseTransformOriginShorthand(value, value2, value3))
- return false;
- // parseTransformOriginShorthand advances the m_valueList pointer
- break;
- case CSSPropertyTransformOriginX: {
- value = parsePositionX(*m_valueList);
- if (value)
- m_valueList->next();
- break;
- }
- case CSSPropertyTransformOriginY: {
- value = parsePositionY(*m_valueList);
- if (value)
- m_valueList->next();
- break;
- }
- case CSSPropertyTransformOriginZ: {
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
- if (validateUnit(valueWithCalculation, FLength))
- value = createPrimitiveNumericValue(valueWithCalculation);
- if (value)
- m_valueList->next();
- break;
- }
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
-
- return value;
-}
-
-bool CSSParser::parsePerspectiveOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, RefPtr<CSSPrimitiveValue>& value, RefPtr<CSSPrimitiveValue>& value2)
-{
- propId1 = propId;
- propId2 = propId;
- if (propId == CSSPropertyPerspectiveOrigin) {
- propId1 = CSSPropertyPerspectiveOriginX;
- propId2 = CSSPropertyPerspectiveOriginY;
- }
-
- switch (propId) {
- case CSSPropertyPerspectiveOrigin:
- if (m_valueList->size() > 2)
- return false;
- parse2ValuesFillPosition(*m_valueList, value, value2);
- break;
- case CSSPropertyPerspectiveOriginX: {
- value = parsePositionX(*m_valueList);
- if (value)
- m_valueList->next();
- break;
- }
- case CSSPropertyPerspectiveOriginY: {
- value = parsePositionY(*m_valueList);
- if (value)
- m_valueList->next();
- break;
- }
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
-
- return value;
-}
-
-void CSSParser::addTextDecorationProperty(CSSPropertyID propId, RefPtr<CSSValue>&& value, bool important)
-{
- // The text-decoration-line property takes priority over text-decoration, unless the latter has important priority set.
- if (propId == CSSPropertyTextDecoration && !important && !inShorthand()) {
- for (unsigned i = 0; i < m_parsedProperties.size(); ++i) {
- if (m_parsedProperties[i].id() == CSSPropertyWebkitTextDecorationLine)
- return;
- }
- }
- addProperty(propId, WTFMove(value), important);
-}
-
-bool CSSParser::parseTextDecoration(CSSPropertyID propId, bool important)
-{
- CSSParserValue* value = m_valueList->current();
- if (value && value->id == CSSValueNone) {
- addTextDecorationProperty(propId, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- m_valueList->next();
- return true;
- }
-
- auto list = CSSValueList::createSpaceSeparated();
- bool isValid = true;
- while (isValid && value) {
- switch (value->id) {
- case CSSValueBlink:
- case CSSValueLineThrough:
- case CSSValueOverline:
- case CSSValueUnderline:
-#if ENABLE(LETTERPRESS)
- case CSSValueWebkitLetterpress:
-#endif
- list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
- break;
- default:
- isValid = false;
- break;
- }
- if (isValid)
- value = m_valueList->next();
- }
-
- // Values are either valid or in shorthand scope.
- if (list->length() && (isValid || inShorthand())) {
- addTextDecorationProperty(propId, WTFMove(list), important);
- return true;
- }
-
- return false;
-}
-
-bool CSSParser::parseTextDecorationSkip(bool important)
-{
- // The text-decoration-skip property has syntax "none | [ objects || spaces || ink || edges || box-decoration ]".
- // However, only 'none' and 'ink' are implemented yet, so we will parse syntax "none | ink" for now.
- CSSParserValue* value = m_valueList->current();
- do {
- switch (value->id) {
- case CSSValueNone:
- case CSSValueAuto:
- case CSSValueInk:
- case CSSValueObjects:
- addProperty(CSSPropertyWebkitTextDecorationSkip, CSSValuePool::singleton().createIdentifierValue(value->id), important);
- return true;
- default:
- break;
- }
- } while ((value = m_valueList->next()));
- return false;
-}
-
-bool CSSParser::parseTextUnderlinePosition(bool important)
-{
- // The text-underline-position property has sintax "auto | alphabetic | [ under || [ left | right ] ]".
- // However, values 'left' and 'right' are not implemented yet, so we will parse sintax
- // "auto | alphabetic | under" for now.
- CSSParserValue& value = *m_valueList->current();
- switch (value.id) {
- case CSSValueAuto:
- case CSSValueAlphabetic:
- case CSSValueUnder:
- if (m_valueList->next())
- return false;
-
- addProperty(CSSPropertyWebkitTextUnderlinePosition, CSSValuePool::singleton().createIdentifierValue(value.id), important);
- return true;
- default:
- break;
- }
- return false;
-}
-
-bool CSSParser::parseTextEmphasisStyle(bool important)
-{
- unsigned valueListSize = m_valueList->size();
-
- RefPtr<CSSPrimitiveValue> fill;
- RefPtr<CSSPrimitiveValue> shape;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit == CSSPrimitiveValue::CSS_STRING) {
- if (fill || shape || (valueListSize != 1 && !inShorthand()))
- return false;
- addProperty(CSSPropertyWebkitTextEmphasisStyle, createPrimitiveStringValue(*value), important);
- m_valueList->next();
- return true;
- }
-
- if (value->id == CSSValueNone) {
- if (fill || shape || (valueListSize != 1 && !inShorthand()))
- return false;
- addProperty(CSSPropertyWebkitTextEmphasisStyle, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- m_valueList->next();
- return true;
- }
-
- if (value->id == CSSValueOpen || value->id == CSSValueFilled) {
- if (fill)
- return false;
- fill = CSSValuePool::singleton().createIdentifierValue(value->id);
- } else if (value->id == CSSValueDot || value->id == CSSValueCircle || value->id == CSSValueDoubleCircle || value->id == CSSValueTriangle || value->id == CSSValueSesame) {
- if (shape)
- return false;
- shape = CSSValuePool::singleton().createIdentifierValue(value->id);
- } else if (!inShorthand())
- return false;
- else
- break;
- }
-
- if (fill && shape) {
- auto parsedValues = CSSValueList::createSpaceSeparated();
- parsedValues->append(fill.releaseNonNull());
- parsedValues->append(shape.releaseNonNull());
- addProperty(CSSPropertyWebkitTextEmphasisStyle, WTFMove(parsedValues), important);
- return true;
- }
- if (fill) {
- addProperty(CSSPropertyWebkitTextEmphasisStyle, fill.releaseNonNull(), important);
- return true;
- }
- if (shape) {
- addProperty(CSSPropertyWebkitTextEmphasisStyle, shape.releaseNonNull(), important);
- return true;
- }
-
- return false;
-}
-
-bool CSSParser::parseTextEmphasisPosition(bool important)
-{
- bool foundOverOrUnder = false;
- CSSValueID overUnderValueID = CSSValueOver;
- bool foundLeftOrRight = false;
- CSSValueID leftRightValueID = CSSValueRight;
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- switch (value->id) {
- case CSSValueOver:
- if (foundOverOrUnder)
- return false;
- foundOverOrUnder = true;
- overUnderValueID = CSSValueOver;
- break;
- case CSSValueUnder:
- if (foundOverOrUnder)
- return false;
- foundOverOrUnder = true;
- overUnderValueID = CSSValueUnder;
- break;
- case CSSValueLeft:
- if (foundLeftOrRight)
- return false;
- foundLeftOrRight = true;
- leftRightValueID = CSSValueLeft;
- break;
- case CSSValueRight:
- if (foundLeftOrRight)
- return false;
- foundLeftOrRight = true;
- leftRightValueID = CSSValueRight;
- break;
- default:
- return false;
- }
- }
- if (!foundOverOrUnder)
- return false;
- auto list = CSSValueList::createSpaceSeparated();
- list->append(CSSValuePool::singleton().createIdentifierValue(overUnderValueID));
- if (foundLeftOrRight)
- list->append(CSSValuePool::singleton().createIdentifierValue(leftRightValueID));
- addProperty(CSSPropertyWebkitTextEmphasisPosition, WTFMove(list), important);
- return true;
-}
-
-RefPtr<CSSValueList> CSSParser::parseTextIndent()
-{
- // <length> | <percentage> | inherit when CSS3_TEXT is disabled.
- // [ <length> | <percentage> ] && [ -webkit-hanging || -webkit-each-line ]? | inherit when CSS3_TEXT is enabled.
- auto list = CSSValueList::createSpaceSeparated();
- bool hasLengthOrPercentage = false;
-#if ENABLE(CSS3_TEXT)
- bool hasEachLine = false;
- bool hasHanging = false;
-#endif
-
- CSSParserValue* value = m_valueList->current();
- while (value) {
- ValueWithCalculation valueWithCalculation(*value);
- if (!hasLengthOrPercentage && validateUnit(valueWithCalculation, FLength | FPercent)) {
- list->append(createPrimitiveNumericValue(valueWithCalculation));
- hasLengthOrPercentage = true;
- }
-#if ENABLE(CSS3_TEXT)
- else if (!hasEachLine && value->id == CSSValueWebkitEachLine) {
- list->append(CSSValuePool::singleton().createIdentifierValue(CSSValueWebkitEachLine));
- hasEachLine = true;
- } else if (!hasHanging && value->id == CSSValueWebkitHanging) {
- list->append(CSSValuePool::singleton().createIdentifierValue(CSSValueWebkitHanging));
- hasHanging = true;
- }
-#endif
- else
- return nullptr;
-
- value = m_valueList->next();
- }
-
- if (!hasLengthOrPercentage)
- return nullptr;
-
- return WTFMove(list);
-}
-
-bool CSSParser::parseHangingPunctuation(bool important)
-{
- CSSParserValue* value = m_valueList->current();
- if (value && value->id == CSSValueNone) {
- addProperty(CSSPropertyHangingPunctuation, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
- m_valueList->next();
- return true;
- }
-
- auto list = CSSValueList::createSpaceSeparated();
- bool isValid = true;
- std::bitset<numCSSValueKeywords> seenValues;
- while (isValid && value) {
- if (seenValues[value->id]
- || (value->id == CSSValueAllowEnd && seenValues[CSSValueForceEnd])
- || (value->id == CSSValueForceEnd && seenValues[CSSValueAllowEnd])) {
- isValid = false;
- break;
- }
- switch (value->id) {
- case CSSValueAllowEnd:
- case CSSValueFirst:
- case CSSValueForceEnd:
- case CSSValueLast:
- list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
- seenValues.set(value->id);
- break;
- default:
- isValid = false;
- break;
- }
- if (isValid)
- value = m_valueList->next();
- }
-
- // Values are either valid or in shorthand scope.
- if (list->length() && isValid) {
- addProperty(CSSPropertyHangingPunctuation, WTFMove(list), important);
- return true;
- }
-
- return false;
-}
-
-bool CSSParser::parseLineBoxContain(bool important)
-{
- LineBoxContain lineBoxContain = LineBoxContainNone;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->id == CSSValueBlock) {
- if (lineBoxContain & LineBoxContainBlock)
- return false;
- lineBoxContain |= LineBoxContainBlock;
- } else if (value->id == CSSValueInline) {
- if (lineBoxContain & LineBoxContainInline)
- return false;
- lineBoxContain |= LineBoxContainInline;
- } else if (value->id == CSSValueFont) {
- if (lineBoxContain & LineBoxContainFont)
- return false;
- lineBoxContain |= LineBoxContainFont;
- } else if (value->id == CSSValueGlyphs) {
- if (lineBoxContain & LineBoxContainGlyphs)
- return false;
- lineBoxContain |= LineBoxContainGlyphs;
- } else if (value->id == CSSValueReplaced) {
- if (lineBoxContain & LineBoxContainReplaced)
- return false;
- lineBoxContain |= LineBoxContainReplaced;
- } else if (value->id == CSSValueInlineBox) {
- if (lineBoxContain & LineBoxContainInlineBox)
- return false;
- lineBoxContain |= LineBoxContainInlineBox;
- } else if (value->id == CSSValueInitialLetter) {
- if (lineBoxContain & LineBoxContainInitialLetter)
- return false;
- lineBoxContain |= LineBoxContainInitialLetter;
- } else
- return false;
- }
-
- if (!lineBoxContain)
- return false;
-
- addProperty(CSSPropertyWebkitLineBoxContain, CSSLineBoxContainValue::create(lineBoxContain), important);
- return true;
-}
-
-bool CSSParser::parseFontFeatureTag(CSSValueList& settings)
-{
- CSSParserValue* value = m_valueList->current();
- // Feature tag name comes first
- if (value->unit != CSSPrimitiveValue::CSS_STRING)
- return false;
- FontFeatureTag tag;
- if (value->string.length() != tag.size())
- return false;
- for (unsigned i = 0; i < tag.size(); ++i) {
- // Limits the range of characters to 0x20-0x7E, following the tag name rules defiend in the OpenType specification.
- UChar character = value->string[i];
- if (character < 0x20 || character > 0x7E)
- return false;
- tag[i] = toASCIILower(character);
- }
-
- int tagValue = 1;
- // Feature tag values could follow: <integer> | on | off
- value = m_valueList->next();
- if (value) {
- if (value->unit == CSSPrimitiveValue::CSS_NUMBER && value->isInt && value->fValue >= 0) {
- tagValue = clampToInteger(value->fValue);
- if (tagValue < 0)
- return false;
- m_valueList->next();
- } else if (value->id == CSSValueOn || value->id == CSSValueOff) {
- tagValue = value->id == CSSValueOn;
- m_valueList->next();
- }
- }
- settings.append(CSSFontFeatureValue::create(WTFMove(tag), tagValue));
- return true;
-}
-
-bool CSSParser::parseFontFeatureSettings(bool important)
-{
- if (m_valueList->size() == 1 && m_valueList->current()->id == CSSValueNormal) {
- auto normalValue = CSSValuePool::singleton().createIdentifierValue(CSSValueNormal);
- m_valueList->next();
- addProperty(CSSPropertyFontFeatureSettings, WTFMove(normalValue), important);
- return true;
- }
-
- auto settings = CSSValueList::createCommaSeparated();
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (!parseFontFeatureTag(settings))
- return false;
-
- // If the list isn't parsed fully, the current value should be comma.
- value = m_valueList->current();
- if (value && !isComma(value))
- return false;
- }
- if (settings->length()) {
- addProperty(CSSPropertyFontFeatureSettings, WTFMove(settings), important);
- return true;
- }
- return false;
-}
-
-bool CSSParser::parseFontVariantLigatures(bool important, bool unknownIsFailure, bool implicit)
-{
- auto values = CSSValueList::createSpaceSeparated();
- FontVariantLigatures commonLigatures = FontVariantLigatures::Normal;
- FontVariantLigatures discretionaryLigatures = FontVariantLigatures::Normal;
- FontVariantLigatures historicalLigatures = FontVariantLigatures::Normal;
- FontVariantLigatures contextualAlternates = FontVariantLigatures::Normal;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- switch (value->id) {
- case CSSValueNoCommonLigatures:
- commonLigatures = FontVariantLigatures::No;
- break;
- case CSSValueCommonLigatures:
- commonLigatures = FontVariantLigatures::Yes;
- break;
- case CSSValueNoDiscretionaryLigatures:
- discretionaryLigatures = FontVariantLigatures::No;
- break;
- case CSSValueDiscretionaryLigatures:
- discretionaryLigatures = FontVariantLigatures::Yes;
- break;
- case CSSValueNoHistoricalLigatures:
- historicalLigatures = FontVariantLigatures::No;
- break;
- case CSSValueHistoricalLigatures:
- historicalLigatures = FontVariantLigatures::Yes;
- break;
- case CSSValueContextual:
- contextualAlternates = FontVariantLigatures::Yes;
- break;
- case CSSValueNoContextual:
- contextualAlternates = FontVariantLigatures::No;
- break;
- default:
- if (unknownIsFailure)
- return false;
- continue;
- }
- }
-
- switch (commonLigatures) {
- case FontVariantLigatures::Normal:
- break;
- case FontVariantLigatures::Yes:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueCommonLigatures));
- break;
- case FontVariantLigatures::No:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueNoCommonLigatures));
- break;
- }
-
- switch (discretionaryLigatures) {
- case FontVariantLigatures::Normal:
- break;
- case FontVariantLigatures::Yes:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueDiscretionaryLigatures));
- break;
- case FontVariantLigatures::No:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueNoDiscretionaryLigatures));
- break;
- }
-
- switch (historicalLigatures) {
- case FontVariantLigatures::Normal:
- break;
- case FontVariantLigatures::Yes:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueHistoricalLigatures));
- break;
- case FontVariantLigatures::No:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueNoHistoricalLigatures));
- break;
- }
-
- switch (contextualAlternates) {
- case FontVariantLigatures::Normal:
- break;
- case FontVariantLigatures::Yes:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueContextual));
- break;
- case FontVariantLigatures::No:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueNoContextual));
- break;
- }
-
- if (!values->length())
- return !unknownIsFailure;
-
- addProperty(CSSPropertyFontVariantLigatures, WTFMove(values), important, implicit);
- return true;
-}
-
-bool CSSParser::parseFontVariantNumeric(bool important, bool unknownIsFailure, bool implicit)
-{
- auto values = CSSValueList::createSpaceSeparated();
- FontVariantNumericFigure figure = FontVariantNumericFigure::Normal;
- FontVariantNumericSpacing spacing = FontVariantNumericSpacing::Normal;
- FontVariantNumericFraction fraction = FontVariantNumericFraction::Normal;
- FontVariantNumericOrdinal ordinal = FontVariantNumericOrdinal::Normal;
- FontVariantNumericSlashedZero slashedZero = FontVariantNumericSlashedZero::Normal;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- switch (value->id) {
- case CSSValueLiningNums:
- figure = FontVariantNumericFigure::LiningNumbers;
- break;
- case CSSValueOldstyleNums:
- figure = FontVariantNumericFigure::OldStyleNumbers;
- break;
- case CSSValueProportionalNums:
- spacing = FontVariantNumericSpacing::ProportionalNumbers;
- break;
- case CSSValueTabularNums:
- spacing = FontVariantNumericSpacing::TabularNumbers;
- break;
- case CSSValueDiagonalFractions:
- fraction = FontVariantNumericFraction::DiagonalFractions;
- break;
- case CSSValueStackedFractions:
- fraction = FontVariantNumericFraction::StackedFractions;
- break;
- case CSSValueOrdinal:
- ordinal = FontVariantNumericOrdinal::Yes;
- break;
- case CSSValueSlashedZero:
- slashedZero = FontVariantNumericSlashedZero::Yes;
- break;
- default:
- if (unknownIsFailure)
- return false;
- continue;
- }
- }
-
- switch (figure) {
- case FontVariantNumericFigure::Normal:
- break;
- case FontVariantNumericFigure::LiningNumbers:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueLiningNums));
- break;
- case FontVariantNumericFigure::OldStyleNumbers:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueOldstyleNums));
- break;
- }
-
- switch (spacing) {
- case FontVariantNumericSpacing::Normal:
- break;
- case FontVariantNumericSpacing::ProportionalNumbers:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueProportionalNums));
- break;
- case FontVariantNumericSpacing::TabularNumbers:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueTabularNums));
- break;
- }
-
- switch (fraction) {
- case FontVariantNumericFraction::Normal:
- break;
- case FontVariantNumericFraction::DiagonalFractions:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueDiagonalFractions));
- break;
- case FontVariantNumericFraction::StackedFractions:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueStackedFractions));
- break;
- }
-
- switch (ordinal) {
- case FontVariantNumericOrdinal::Normal:
- break;
- case FontVariantNumericOrdinal::Yes:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueOrdinal));
- break;
- }
-
- switch (slashedZero) {
- case FontVariantNumericSlashedZero::Normal:
- break;
- case FontVariantNumericSlashedZero::Yes:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueSlashedZero));
- break;
- }
-
- if (!values->length())
- return !unknownIsFailure;
-
- addProperty(CSSPropertyFontVariantNumeric, WTFMove(values), important, implicit);
- return true;
-}
-
-bool CSSParser::parseFontVariantEastAsian(bool important, bool unknownIsFailure, bool implicit)
-{
- auto values = CSSValueList::createSpaceSeparated();
- FontVariantEastAsianVariant variant = FontVariantEastAsianVariant::Normal;
- FontVariantEastAsianWidth width = FontVariantEastAsianWidth::Normal;
- FontVariantEastAsianRuby ruby = FontVariantEastAsianRuby::Normal;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- switch (value->id) {
- case CSSValueJis78:
- variant = FontVariantEastAsianVariant::Jis78;
- break;
- case CSSValueJis83:
- variant = FontVariantEastAsianVariant::Jis83;
- break;
- case CSSValueJis90:
- variant = FontVariantEastAsianVariant::Jis90;
- break;
- case CSSValueJis04:
- variant = FontVariantEastAsianVariant::Jis04;
- break;
- case CSSValueSimplified:
- variant = FontVariantEastAsianVariant::Simplified;
- break;
- case CSSValueTraditional:
- variant = FontVariantEastAsianVariant::Traditional;
- break;
- case CSSValueFullWidth:
- width = FontVariantEastAsianWidth::Full;
- break;
- case CSSValueProportionalWidth:
- width = FontVariantEastAsianWidth::Proportional;
- break;
- case CSSValueRuby:
- ruby = FontVariantEastAsianRuby::Yes;
- break;
- default:
- if (unknownIsFailure)
- return false;
- continue;
- }
- }
-
- switch (variant) {
- case FontVariantEastAsianVariant::Normal:
- break;
- case FontVariantEastAsianVariant::Jis78:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueJis78));
- break;
- case FontVariantEastAsianVariant::Jis83:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueJis83));
- break;
- case FontVariantEastAsianVariant::Jis90:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueJis90));
- break;
- case FontVariantEastAsianVariant::Jis04:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueJis04));
- break;
- case FontVariantEastAsianVariant::Simplified:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueSimplified));
- break;
- case FontVariantEastAsianVariant::Traditional:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueTraditional));
- break;
- }
-
- switch (width) {
- case FontVariantEastAsianWidth::Normal:
- break;
- case FontVariantEastAsianWidth::Full:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueFullWidth));
- break;
- case FontVariantEastAsianWidth::Proportional:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueProportionalWidth));
- break;
- }
-
- switch (ruby) {
- case FontVariantEastAsianRuby::Normal:
- break;
- case FontVariantEastAsianRuby::Yes:
- values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueRuby));
- }
-
- if (!values->length())
- return !unknownIsFailure;
-
- addProperty(CSSPropertyFontVariantEastAsian, WTFMove(values), important, implicit);
- return true;
-}
-
-bool CSSParser::parseFontVariant(bool important)
-{
- ShorthandScope scope(this, CSSPropertyFontVariant);
- if (!parseFontVariantLigatures(important, false, false))
- return false;
- m_valueList->setCurrentIndex(0);
- if (!parseFontVariantNumeric(important, false, false))
- return false;
- m_valueList->setCurrentIndex(0);
- if (!parseFontVariantEastAsian(important, false, false))
- return false;
- m_valueList->setCurrentIndex(0);
-
- FontVariantPosition position = FontVariantPosition::Normal;
- FontVariantCaps caps = FontVariantCaps::Normal;
- FontVariantAlternates alternates = FontVariantAlternates::Normal;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- switch (value->id) {
- case CSSValueNoCommonLigatures:
- case CSSValueCommonLigatures:
- case CSSValueNoDiscretionaryLigatures:
- case CSSValueDiscretionaryLigatures:
- case CSSValueNoHistoricalLigatures:
- case CSSValueHistoricalLigatures:
- case CSSValueContextual:
- case CSSValueNoContextual:
- case CSSValueLiningNums:
- case CSSValueOldstyleNums:
- case CSSValueProportionalNums:
- case CSSValueTabularNums:
- case CSSValueDiagonalFractions:
- case CSSValueStackedFractions:
- case CSSValueOrdinal:
- case CSSValueSlashedZero:
- case CSSValueJis78:
- case CSSValueJis83:
- case CSSValueJis90:
- case CSSValueJis04:
- case CSSValueSimplified:
- case CSSValueTraditional:
- case CSSValueFullWidth:
- case CSSValueProportionalWidth:
- case CSSValueRuby:
- break;
- case CSSValueSub:
- position = FontVariantPosition::Subscript;
- break;
- case CSSValueSuper:
- position = FontVariantPosition::Superscript;
- break;
- case CSSValueSmallCaps:
- caps = FontVariantCaps::Small;
- break;
- case CSSValueAllSmallCaps:
- caps = FontVariantCaps::AllSmall;
- break;
- case CSSValuePetiteCaps:
- caps = FontVariantCaps::Petite;
- break;
- case CSSValueAllPetiteCaps:
- caps = FontVariantCaps::AllPetite;
- break;
- case CSSValueUnicase:
- caps = FontVariantCaps::Unicase;
- break;
- case CSSValueTitlingCaps:
- caps = FontVariantCaps::Titling;
- break;
- case CSSValueHistoricalForms:
- alternates = FontVariantAlternates::HistoricalForms;
- break;
- default:
- return false;
- }
- }
-
- switch (position) {
- case FontVariantPosition::Normal:
- break;
- case FontVariantPosition::Subscript:
- addProperty(CSSPropertyFontVariantPosition, CSSValuePool::singleton().createIdentifierValue(CSSValueSub), important, false);
- break;
- case FontVariantPosition::Superscript:
- addProperty(CSSPropertyFontVariantPosition, CSSValuePool::singleton().createIdentifierValue(CSSValueSuper), important, false);
- break;
- }
-
- switch (caps) {
- case FontVariantCaps::Normal:
- break;
- case FontVariantCaps::Small:
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueSmallCaps), important, false);
- break;
- case FontVariantCaps::AllSmall:
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueAllSmallCaps), important, false);
- break;
- case FontVariantCaps::Petite:
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValuePetiteCaps), important, false);
- break;
- case FontVariantCaps::AllPetite:
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueAllPetiteCaps), important, false);
- break;
- case FontVariantCaps::Unicase:
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueUnicase), important, false);
- break;
- case FontVariantCaps::Titling:
- addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueTitlingCaps), important, false);
- break;
- }
-
- switch (alternates) {
- case FontVariantAlternates::Normal:
- break;
- case FontVariantAlternates::HistoricalForms:
- addProperty(CSSPropertyFontVariantAlternates, CSSValuePool::singleton().createIdentifierValue(CSSValueHistoricalForms), important, false);
- break;
- }
-
- return true;
-}
-
-static inline bool isValidWillChangeAnimatableFeature(const CSSParserValue& value)
-{
- if (value.id == CSSValueNone || value.id == CSSValueAuto || value.id == CSSValueAll)
- return false;
-
- if (valueIsCSSKeyword(value))
- return false;
-
- if (cssPropertyID(value.string) == CSSPropertyWillChange)
- return false;
-
- return true;
-}
-
-bool CSSParser::parseWillChange(bool important)
-{
- auto willChangePropertyValues = CSSValueList::createCommaSeparated();
-
- bool expectComma = false;
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (expectComma) {
- if (!isComma(value))
- return false;
-
- expectComma = false;
- continue;
- }
-
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- if (!isValidWillChangeAnimatableFeature(*value))
- return false;
-
- RefPtr<CSSValue> cssValue;
- if (value->id == CSSValueScrollPosition || value->id == CSSValueContents)
- cssValue = CSSValuePool::singleton().createIdentifierValue(value->id);
- else {
- CSSPropertyID propertyID = cssPropertyID(value->string);
- if (propertyID != CSSPropertyInvalid)
- cssValue = CSSValuePool::singleton().createIdentifierValue(propertyID);
- else // This might be a property we don't support.
- cssValue = createPrimitiveStringValue(*value);
- }
-
- willChangePropertyValues->append(cssValue.releaseNonNull());
- expectComma = true;
- }
-
- addProperty(CSSPropertyWillChange, WTFMove(willChangePropertyValues), important);
- return true;
-}
-
-RefPtr<CSSCalcValue> CSSParser::parseCalculation(CSSParserValue& value, CalculationPermittedValueRange range)
-{
- ASSERT(isCalculation(value));
-
- CSSParserValueList* args = value.function->args.get();
- if (!args || !args->size())
- return nullptr;
-
- return CSSCalcValue::create(value.function->name, *args, range);
-}
-
-#define END_TOKEN 0
-
-#include "CSSGrammar.h"
-
-enum CharacterType {
- // Types for the main switch.
-
- // The first 4 types must be grouped together, as they
- // represent the allowed chars in an identifier.
- CharacterCaselessU,
- CharacterIdentifierStart,
- CharacterNumber,
- CharacterDash,
-
- CharacterOther,
- CharacterNull,
- CharacterWhiteSpace,
- CharacterEndConditionQuery,
- CharacterEndNthChild,
- CharacterQuote,
- CharacterExclamationMark,
- CharacterHashmark,
- CharacterDollar,
- CharacterAsterisk,
- CharacterPlus,
- CharacterDot,
- CharacterSlash,
- CharacterLess,
- CharacterAt,
- CharacterBackSlash,
- CharacterXor,
- CharacterVerticalBar,
- CharacterTilde,
-};
-
-// 128 ASCII codes
-static const CharacterType typesOfASCIICharacters[128] = {
-/* 0 - Null */ CharacterNull,
-/* 1 - Start of Heading */ CharacterOther,
-/* 2 - Start of Text */ CharacterOther,
-/* 3 - End of Text */ CharacterOther,
-/* 4 - End of Transm. */ CharacterOther,
-/* 5 - Enquiry */ CharacterOther,
-/* 6 - Acknowledgment */ CharacterOther,
-/* 7 - Bell */ CharacterOther,
-/* 8 - Back Space */ CharacterOther,
-/* 9 - Horizontal Tab */ CharacterWhiteSpace,
-/* 10 - Line Feed */ CharacterWhiteSpace,
-/* 11 - Vertical Tab */ CharacterOther,
-/* 12 - Form Feed */ CharacterWhiteSpace,
-/* 13 - Carriage Return */ CharacterWhiteSpace,
-/* 14 - Shift Out */ CharacterOther,
-/* 15 - Shift In */ CharacterOther,
-/* 16 - Data Line Escape */ CharacterOther,
-/* 17 - Device Control 1 */ CharacterOther,
-/* 18 - Device Control 2 */ CharacterOther,
-/* 19 - Device Control 3 */ CharacterOther,
-/* 20 - Device Control 4 */ CharacterOther,
-/* 21 - Negative Ack. */ CharacterOther,
-/* 22 - Synchronous Idle */ CharacterOther,
-/* 23 - End of Transmit */ CharacterOther,
-/* 24 - Cancel */ CharacterOther,
-/* 25 - End of Medium */ CharacterOther,
-/* 26 - Substitute */ CharacterOther,
-/* 27 - Escape */ CharacterOther,
-/* 28 - File Separator */ CharacterOther,
-/* 29 - Group Separator */ CharacterOther,
-/* 30 - Record Separator */ CharacterOther,
-/* 31 - Unit Separator */ CharacterOther,
-/* 32 - Space */ CharacterWhiteSpace,
-/* 33 - ! */ CharacterExclamationMark,
-/* 34 - " */ CharacterQuote,
-/* 35 - # */ CharacterHashmark,
-/* 36 - $ */ CharacterDollar,
-/* 37 - % */ CharacterOther,
-/* 38 - & */ CharacterOther,
-/* 39 - ' */ CharacterQuote,
-/* 40 - ( */ CharacterOther,
-/* 41 - ) */ CharacterEndNthChild,
-/* 42 - * */ CharacterAsterisk,
-/* 43 - + */ CharacterPlus,
-/* 44 - , */ CharacterOther,
-/* 45 - - */ CharacterDash,
-/* 46 - . */ CharacterDot,
-/* 47 - / */ CharacterSlash,
-/* 48 - 0 */ CharacterNumber,
-/* 49 - 1 */ CharacterNumber,
-/* 50 - 2 */ CharacterNumber,
-/* 51 - 3 */ CharacterNumber,
-/* 52 - 4 */ CharacterNumber,
-/* 53 - 5 */ CharacterNumber,
-/* 54 - 6 */ CharacterNumber,
-/* 55 - 7 */ CharacterNumber,
-/* 56 - 8 */ CharacterNumber,
-/* 57 - 9 */ CharacterNumber,
-/* 58 - : */ CharacterOther,
-/* 59 - ; */ CharacterEndConditionQuery,
-/* 60 - < */ CharacterLess,
-/* 61 - = */ CharacterOther,
-/* 62 - > */ CharacterOther,
-/* 63 - ? */ CharacterOther,
-/* 64 - @ */ CharacterAt,
-/* 65 - A */ CharacterIdentifierStart,
-/* 66 - B */ CharacterIdentifierStart,
-/* 67 - C */ CharacterIdentifierStart,
-/* 68 - D */ CharacterIdentifierStart,
-/* 69 - E */ CharacterIdentifierStart,
-/* 70 - F */ CharacterIdentifierStart,
-/* 71 - G */ CharacterIdentifierStart,
-/* 72 - H */ CharacterIdentifierStart,
-/* 73 - I */ CharacterIdentifierStart,
-/* 74 - J */ CharacterIdentifierStart,
-/* 75 - K */ CharacterIdentifierStart,
-/* 76 - L */ CharacterIdentifierStart,
-/* 77 - M */ CharacterIdentifierStart,
-/* 78 - N */ CharacterIdentifierStart,
-/* 79 - O */ CharacterIdentifierStart,
-/* 80 - P */ CharacterIdentifierStart,
-/* 81 - Q */ CharacterIdentifierStart,
-/* 82 - R */ CharacterIdentifierStart,
-/* 83 - S */ CharacterIdentifierStart,
-/* 84 - T */ CharacterIdentifierStart,
-/* 85 - U */ CharacterCaselessU,
-/* 86 - V */ CharacterIdentifierStart,
-/* 87 - W */ CharacterIdentifierStart,
-/* 88 - X */ CharacterIdentifierStart,
-/* 89 - Y */ CharacterIdentifierStart,
-/* 90 - Z */ CharacterIdentifierStart,
-/* 91 - [ */ CharacterOther,
-/* 92 - \ */ CharacterBackSlash,
-/* 93 - ] */ CharacterOther,
-/* 94 - ^ */ CharacterXor,
-/* 95 - _ */ CharacterIdentifierStart,
-/* 96 - ` */ CharacterOther,
-/* 97 - a */ CharacterIdentifierStart,
-/* 98 - b */ CharacterIdentifierStart,
-/* 99 - c */ CharacterIdentifierStart,
-/* 100 - d */ CharacterIdentifierStart,
-/* 101 - e */ CharacterIdentifierStart,
-/* 102 - f */ CharacterIdentifierStart,
-/* 103 - g */ CharacterIdentifierStart,
-/* 104 - h */ CharacterIdentifierStart,
-/* 105 - i */ CharacterIdentifierStart,
-/* 106 - j */ CharacterIdentifierStart,
-/* 107 - k */ CharacterIdentifierStart,
-/* 108 - l */ CharacterIdentifierStart,
-/* 109 - m */ CharacterIdentifierStart,
-/* 110 - n */ CharacterIdentifierStart,
-/* 111 - o */ CharacterIdentifierStart,
-/* 112 - p */ CharacterIdentifierStart,
-/* 113 - q */ CharacterIdentifierStart,
-/* 114 - r */ CharacterIdentifierStart,
-/* 115 - s */ CharacterIdentifierStart,
-/* 116 - t */ CharacterIdentifierStart,
-/* 117 - u */ CharacterCaselessU,
-/* 118 - v */ CharacterIdentifierStart,
-/* 119 - w */ CharacterIdentifierStart,
-/* 120 - x */ CharacterIdentifierStart,
-/* 121 - y */ CharacterIdentifierStart,
-/* 122 - z */ CharacterIdentifierStart,
-/* 123 - { */ CharacterEndConditionQuery,
-/* 124 - | */ CharacterVerticalBar,
-/* 125 - } */ CharacterOther,
-/* 126 - ~ */ CharacterTilde,
-/* 127 - Delete */ CharacterOther,
-};
-
-// Utility functions for the CSS tokenizer.
-
-template <typename CharacterType>
-static inline bool isCSSLetter(CharacterType character)
-{
- return character >= 128 || typesOfASCIICharacters[character] <= CharacterDash;
-}
-
-template <typename CharacterType>
-static inline bool isCSSEscape(CharacterType character)
-{
- return character >= ' ' && character != 127;
-}
-
-template <typename CharacterType>
-static inline bool isURILetter(CharacterType character)
-{
- return (character >= '*' && character != 127) || (character >= '#' && character <= '&') || character == '!';
-}
-
-template <typename CharacterType>
-static inline bool isIdentifierStartAfterDash(CharacterType* currentCharacter)
-{
- return isASCIIAlpha(currentCharacter[0]) || currentCharacter[0] == '_' || currentCharacter[0] >= 128
- || (currentCharacter[0] == '\\' && isCSSEscape(currentCharacter[1]));
-}
-
-template <typename CharacterType>
-static inline bool isCustomPropertyIdentifier(CharacterType* currentCharacter)
-{
- return isASCIIAlpha(currentCharacter[0]) || currentCharacter[0] == '_' || currentCharacter[0] >= 128
- || (currentCharacter[0] == '\\' && isCSSEscape(currentCharacter[1]));
-}
-
-template <typename CharacterType>
-static inline bool isEqualToCSSIdentifier(CharacterType* cssString, const char* constantString)
-{
- // Compare an character memory data with a zero terminated string.
- do {
- // The input must be part of an identifier if constantChar or constString
- // contains '-'. Otherwise toASCIILowerUnchecked('\r') would be equal to '-'.
- ASSERT((*constantString >= 'a' && *constantString <= 'z') || *constantString == '-');
- ASSERT(*constantString != '-' || isCSSLetter(*cssString));
- if (toASCIILowerUnchecked(*cssString++) != (*constantString++))
- return false;
- } while (*constantString);
- return true;
-}
-
-template <typename CharacterType>
-static inline bool isEqualToCSSCaseSensitiveIdentifier(CharacterType* string, const char* constantString)
-{
- do {
- if (*string++ != *constantString++)
- return false;
- } while (*constantString);
- return true;
-}
-
-template <typename CharacterType>
-static CharacterType* checkAndSkipEscape(CharacterType* currentCharacter)
-{
- // Returns with 0, if escape check is failed. Otherwise
- // it returns with the following character.
- ASSERT(*currentCharacter == '\\');
-
- ++currentCharacter;
- if (!isCSSEscape(*currentCharacter))
- return nullptr;
-
- if (isASCIIHexDigit(*currentCharacter)) {
- int length = 6;
-
- do {
- ++currentCharacter;
- } while (isASCIIHexDigit(*currentCharacter) && --length);
-
- // Optional space after the escape sequence.
- if (isHTMLSpace(*currentCharacter))
- ++currentCharacter;
- return currentCharacter;
- }
- return currentCharacter + 1;
-}
-
-template <typename CharacterType>
-static inline CharacterType* skipWhiteSpace(CharacterType* currentCharacter)
-{
- while (isHTMLSpace(*currentCharacter))
- ++currentCharacter;
- return currentCharacter;
-}
-
-// Main CSS tokenizer functions.
-
-template <>
-LChar* CSSParserString::characters<LChar>() const { return characters8(); }
-
-template <>
-UChar* CSSParserString::characters<UChar>() const { return characters16(); }
-
-template <>
-inline LChar*& CSSParser::currentCharacter<LChar>()
-{
- return m_currentCharacter8;
-}
-
-template <>
-inline UChar*& CSSParser::currentCharacter<UChar>()
-{
- return m_currentCharacter16;
-}
-
-UChar*& CSSParser::currentCharacter16()
-{
- if (!m_currentCharacter16) {
- m_dataStart16 = std::make_unique<UChar[]>(m_length);
- m_currentCharacter16 = m_dataStart16.get();
- }
-
- return m_currentCharacter16;
-}
-
-template <>
-inline LChar* CSSParser::tokenStart<LChar>()
-{
- return m_tokenStart.ptr8;
-}
-
-template <>
-inline UChar* CSSParser::tokenStart<UChar>()
-{
- return m_tokenStart.ptr16;
-}
-
-CSSParser::Location CSSParser::currentLocation()
-{
- Location location;
- location.lineNumber = m_tokenStartLineNumber;
- location.columnNumber = m_tokenStartColumnNumber;
-
- ASSERT(location.lineNumber >= 0);
- ASSERT(location.columnNumber >= 0);
-
- if (location.lineNumber == m_sheetStartLineNumber)
- location.columnNumber += m_sheetStartColumnNumber;
-
- if (is8BitSource())
- location.token.init(tokenStart<LChar>(), currentCharacter<LChar>() - tokenStart<LChar>());
- else
- location.token.init(tokenStart<UChar>(), currentCharacter<UChar>() - tokenStart<UChar>());
-
- return location;
-}
-
-template <typename CharacterType>
-inline bool CSSParser::isIdentifierStart()
-{
- // Check whether an identifier is started.
- return isIdentifierStartAfterDash((*currentCharacter<CharacterType>() != '-') ? currentCharacter<CharacterType>() : currentCharacter<CharacterType>() + 1);
-}
-
-template <typename CharacterType>
-static inline CharacterType* checkAndSkipString(CharacterType* currentCharacter, int quote)
-{
- // Returns with 0, if string check is failed. Otherwise
- // it returns with the following character. This is necessary
- // since we cannot revert escape sequences, thus strings
- // must be validated before parsing.
- while (true) {
- if (UNLIKELY(*currentCharacter == quote)) {
- // String parsing is successful.
- return currentCharacter + 1;
- }
- if (UNLIKELY(!*currentCharacter)) {
- // String parsing is successful up to end of input.
- return currentCharacter;
- }
- if (UNLIKELY(*currentCharacter <= '\r' && (*currentCharacter == '\n' || (*currentCharacter | 0x1) == '\r'))) {
- // String parsing is failed for character '\n', '\f' or '\r'.
- return nullptr;
- }
-
- if (LIKELY(currentCharacter[0] != '\\'))
- ++currentCharacter;
- else if (currentCharacter[1] == '\n' || currentCharacter[1] == '\f')
- currentCharacter += 2;
- else if (currentCharacter[1] == '\r')
- currentCharacter += currentCharacter[2] == '\n' ? 3 : 2;
- else {
- currentCharacter = checkAndSkipEscape(currentCharacter);
- if (!currentCharacter)
- return nullptr;
- }
- }
-}
-
-template <typename CharacterType>
-unsigned CSSParser::parseEscape(CharacterType*& src)
-{
- ASSERT(*src == '\\' && isCSSEscape(src[1]));
-
- unsigned unicode = 0;
-
- ++src;
- if (isASCIIHexDigit(*src)) {
-
- int length = 6;
-
- do {
- unicode = (unicode << 4) + toASCIIHexValue(*src++);
- } while (--length && isASCIIHexDigit(*src));
-
- if (unicode > UCHAR_MAX_VALUE)
- unicode = replacementCharacter;
-
- // Optional space after the escape sequence.
- if (isHTMLSpace(*src))
- ++src;
-
- return unicode;
- }
-
- return *currentCharacter<CharacterType>()++;
-}
-
-template <>
-inline void CSSParser::UnicodeToChars<LChar>(LChar*& result, unsigned unicode)
-{
- ASSERT(unicode <= 0xff);
- *result = unicode;
-
- ++result;
-}
-
-template <>
-inline void CSSParser::UnicodeToChars<UChar>(UChar*& result, unsigned unicode)
-{
- // Replace unicode with a surrogate pairs when it is bigger than 0xffff
- if (U16_LENGTH(unicode) == 2) {
- *result++ = U16_LEAD(unicode);
- *result = U16_TRAIL(unicode);
- } else
- *result = unicode;
-
- ++result;
-}
-
-template <typename SrcCharacterType, typename DestCharacterType>
-inline bool CSSParser::parseIdentifierInternal(SrcCharacterType*& src, DestCharacterType*& result, bool& hasEscape)
-{
- hasEscape = false;
- do {
- if (LIKELY(*src != '\\'))
- *result++ = *src++;
- else {
- hasEscape = true;
- SrcCharacterType* savedEscapeStart = src;
- unsigned unicode = parseEscape<SrcCharacterType>(src);
- if (unicode > 0xff && sizeof(DestCharacterType) == 1) {
- src = savedEscapeStart;
- return false;
- }
- UnicodeToChars(result, unicode);
- }
- } while (isCSSLetter(src[0]) || (src[0] == '\\' && isCSSEscape(src[1])));
-
- return true;
-}
-
-template <typename CharacterType>
-inline void CSSParser::parseIdentifier(CharacterType*& result, CSSParserString& resultString, bool& hasEscape)
-{
- CharacterType* start = currentCharacter<CharacterType>();
- if (UNLIKELY(!parseIdentifierInternal(currentCharacter<CharacterType>(), result, hasEscape))) {
- // Found an escape we couldn't handle with 8 bits, copy what has been recognized and continue
- ASSERT(is8BitSource());
- UChar*& result16 = currentCharacter16();
- UChar* start16 = result16;
- int i = 0;
- for (; i < result - start; ++i)
- result16[i] = start[i];
-
- result16 += i;
-
- parseIdentifierInternal(currentCharacter<CharacterType>(), result16, hasEscape);
-
- result += result16 - start16;
- resultString.init(start16, result16 - start16);
-
- return;
- }
-
- resultString.init(start, result - start);
-}
-
-template <typename SrcCharacterType, typename DestCharacterType>
-inline bool CSSParser::parseStringInternal(SrcCharacterType*& src, DestCharacterType*& result, UChar quote)
-{
- while (true) {
- if (UNLIKELY(*src == quote)) {
- // String parsing is done.
- ++src;
- return true;
- }
- if (UNLIKELY(!*src)) {
- // String parsing is done, but don't advance pointer if at the end of input.
- return true;
- }
- ASSERT(*src > '\r' || (*src < '\n' && *src) || *src == '\v');
-
- if (LIKELY(src[0] != '\\'))
- *result++ = *src++;
- else if (src[1] == '\n' || src[1] == '\f')
- src += 2;
- else if (src[1] == '\r')
- src += src[2] == '\n' ? 3 : 2;
- else {
- SrcCharacterType* savedEscapeStart = src;
- unsigned unicode = parseEscape<SrcCharacterType>(src);
- if (unicode > 0xff && sizeof(DestCharacterType) == 1) {
- src = savedEscapeStart;
- return false;
- }
- UnicodeToChars(result, unicode);
- }
- }
-
- return true;
-}
-
-template <typename CharacterType>
-inline void CSSParser::parseString(CharacterType*& result, CSSParserString& resultString, UChar quote)
-{
- CharacterType* start = currentCharacter<CharacterType>();
-
- if (UNLIKELY(!parseStringInternal(currentCharacter<CharacterType>(), result, quote))) {
- // Found an escape we couldn't handle with 8 bits, copy what has been recognized and continue
- ASSERT(is8BitSource());
- UChar*& result16 = currentCharacter16();
- UChar* start16 = result16;
- int i = 0;
- for (; i < result - start; ++i)
- result16[i] = start[i];
-
- result16 += i;
-
- parseStringInternal(currentCharacter<CharacterType>(), result16, quote);
-
- resultString.init(start16, result16 - start16);
- return;
- }
-
- resultString.init(start, result - start);
-}
-
-template <typename CharacterType>
-inline bool CSSParser::findURI(CharacterType*& start, CharacterType*& end, UChar& quote)
-{
- start = skipWhiteSpace(currentCharacter<CharacterType>());
-
- if (*start == '"' || *start == '\'') {
- quote = *start++;
- end = checkAndSkipString(start, quote);
- if (!end)
- return false;
- } else {
- quote = 0;
- end = start;
- while (isURILetter(*end)) {
- if (LIKELY(*end != '\\'))
- ++end;
- else {
- end = checkAndSkipEscape(end);
- if (!end)
- return false;
- }
- }
- }
-
- end = skipWhiteSpace(end);
- if (*end != ')')
- return false;
-
- return true;
-}
-
-template <typename SrcCharacterType, typename DestCharacterType>
-inline bool CSSParser::parseURIInternal(SrcCharacterType*& src, DestCharacterType*& dest, UChar quote)
-{
- if (quote) {
- ASSERT(quote == '"' || quote == '\'');
- return parseStringInternal(src, dest, quote);
- }
-
- while (isURILetter(*src)) {
- if (LIKELY(*src != '\\'))
- *dest++ = *src++;
- else {
- unsigned unicode = parseEscape<SrcCharacterType>(src);
- if (unicode > 0xff && sizeof(SrcCharacterType) == 1)
- return false;
- UnicodeToChars(dest, unicode);
- }
- }
-
- return true;
-}
-
-template <typename CharacterType>
-inline void CSSParser::parseURI(CSSParserString& string)
-{
- CharacterType* uriStart;
- CharacterType* uriEnd;
- UChar quote;
- if (!findURI(uriStart, uriEnd, quote))
- return;
-
- CharacterType* dest = currentCharacter<CharacterType>() = uriStart;
- if (LIKELY(parseURIInternal(currentCharacter<CharacterType>(), dest, quote)))
- string.init(uriStart, dest - uriStart);
- else {
- // An escape sequence was encountered that can't be stored in 8 bits.
- // Reset the current character to the start of the URI and re-parse with
- // a 16-bit destination.
- ASSERT(is8BitSource());
- UChar* uriStart16 = currentCharacter16();
- currentCharacter<CharacterType>() = uriStart;
- bool result = parseURIInternal(currentCharacter<CharacterType>(), currentCharacter16(), quote);
- ASSERT_UNUSED(result, result);
- string.init(uriStart16, currentCharacter16() - uriStart16);
- }
-
- currentCharacter<CharacterType>() = uriEnd + 1;
- m_token = URI;
-}
-
-template <typename CharacterType>
-inline bool CSSParser::parseUnicodeRange()
-{
- CharacterType* character = currentCharacter<CharacterType>() + 1;
- int length = 6;
- ASSERT(*currentCharacter<CharacterType>() == '+');
-
- while (isASCIIHexDigit(*character) && length) {
- ++character;
- --length;
- }
-
- if (length && *character == '?') {
- // At most 5 hex digit followed by a question mark.
- do {
- ++character;
- --length;
- } while (*character == '?' && length);
- currentCharacter<CharacterType>() = character;
- return true;
- }
-
- if (length < 6) {
- // At least one hex digit.
- if (character[0] == '-' && isASCIIHexDigit(character[1])) {
- // Followed by a dash and a hex digit.
- ++character;
- length = 6;
- do {
- ++character;
- } while (--length && isASCIIHexDigit(*character));
- }
- currentCharacter<CharacterType>() = character;
- return true;
- }
- return false;
-}
-
-template <typename CharacterType>
-bool CSSParser::parseNthChild()
-{
- CharacterType* character = currentCharacter<CharacterType>();
-
- while (isASCIIDigit(*character))
- ++character;
- if (isASCIIAlphaCaselessEqual(*character, 'n')) {
- currentCharacter<CharacterType>() = character + 1;
- return true;
- }
- return false;
-}
-
-template <typename CharacterType>
-bool CSSParser::parseNthChildExtra()
-{
- CharacterType* character = skipWhiteSpace(currentCharacter<CharacterType>());
- if (*character != '+' && *character != '-')
- return false;
-
- character = skipWhiteSpace(character + 1);
- if (!isASCIIDigit(*character))
- return false;
-
- do {
- ++character;
- } while (isASCIIDigit(*character));
-
- currentCharacter<CharacterType>() = character;
- return true;
-}
-
-template <typename CharacterType>
-inline bool CSSParser::detectFunctionTypeToken(int length)
-{
- ASSERT(length > 0);
- CharacterType* name = tokenStart<CharacterType>();
-
- switch (length) {
- case 3:
- if (isASCIIAlphaCaselessEqual(name[0], 'n') && isASCIIAlphaCaselessEqual(name[1], 'o') && isASCIIAlphaCaselessEqual(name[2], 't')) {
- m_token = NOTFUNCTION;
- return true;
- }
- if (isASCIIAlphaCaselessEqual(name[0], 'u') && isASCIIAlphaCaselessEqual(name[1], 'r') && isASCIIAlphaCaselessEqual(name[2], 'l')) {
- m_token = URI;
- return true;
- }
- if (isASCIIAlphaCaselessEqual(name[0], 'v') && isASCIIAlphaCaselessEqual(name[1], 'a') && isASCIIAlphaCaselessEqual(name[2], 'r')) {
- m_token = VARFUNCTION;
- return true;
- }
-#if ENABLE(VIDEO_TRACK)
- if (isASCIIAlphaCaselessEqual(name[0], 'c') && isASCIIAlphaCaselessEqual(name[1], 'u') && isASCIIAlphaCaselessEqual(name[2], 'e')) {
- m_token = CUEFUNCTION;
- return true;
- }
-#endif
-#if ENABLE(CSS_SELECTORS_LEVEL4)
- if (isASCIIAlphaCaselessEqual(name[0], 'd') && isASCIIAlphaCaselessEqual(name[1], 'i') && isASCIIAlphaCaselessEqual(name[2], 'r')) {
- m_token = DIRFUNCTION;
- return true;
- }
-#endif
- return false;
-
- case 4:
- if (isEqualToCSSIdentifier(name, "calc")) {
- m_token = CALCFUNCTION;
- return true;
- }
- if (isEqualToCSSIdentifier(name, "lang")) {
- m_token = LANGFUNCTION;
- return true;
- }
-#if ENABLE(CSS_SELECTORS_LEVEL4)
- if (isEqualToCSSIdentifier(name, "role")) {
- m_token = ROLEFUNCTION;
- return true;
- }
-#endif
- if (isEqualToCSSIdentifier(name, "host")) {
- m_token = HOSTFUNCTION;
- return true;
- }
- return false;
-
- case 7:
- if (isEqualToCSSIdentifier(name, "matches")) {
- m_token = MATCHESFUNCTION;
- return true;
- }
- if (isEqualToCSSIdentifier(name, "slotted")) {
- m_token = SLOTTEDFUNCTION;
- return true;
- }
- return false;
-
- case 9:
- if (isEqualToCSSIdentifier(name, "nth-child")) {
- m_token = NTHCHILDFUNCTIONS;
- m_parsingMode = NthChildMode;
- return true;
- }
- return false;
-
- case 11:
- if (isEqualToCSSIdentifier(name, "nth-of-type")) {
- m_parsingMode = NthChildMode;
- return true;
- }
- return false;
-
- case 14:
- if (isEqualToCSSIdentifier(name, "nth-last-child")) {
- m_token = NTHCHILDFUNCTIONS;
- m_parsingMode = NthChildMode;
- return true;
- }
- return false;
-
- case 16:
- if (isEqualToCSSIdentifier(name, "nth-last-of-type")) {
- m_parsingMode = NthChildMode;
- return true;
- }
- return false;
- }
-
- return false;
-}
-
-template <typename CharacterType>
-inline void CSSParser::detectMediaQueryToken(int length)
-{
- ASSERT(m_parsingMode == MediaQueryMode);
- CharacterType* name = tokenStart<CharacterType>();
-
- if (length == 3) {
- if (isASCIIAlphaCaselessEqual(name[0], 'a') && isASCIIAlphaCaselessEqual(name[1], 'n') && isASCIIAlphaCaselessEqual(name[2], 'd'))
- m_token = MEDIA_AND;
- else if (isASCIIAlphaCaselessEqual(name[0], 'n') && isASCIIAlphaCaselessEqual(name[1], 'o') && isASCIIAlphaCaselessEqual(name[2], 't'))
- m_token = MEDIA_NOT;
- } else if (length == 4) {
- if (isASCIIAlphaCaselessEqual(name[0], 'o') && isASCIIAlphaCaselessEqual(name[1], 'n')
- && isASCIIAlphaCaselessEqual(name[2], 'l') && isASCIIAlphaCaselessEqual(name[3], 'y'))
- m_token = MEDIA_ONLY;
- }
-}
-
-template <typename CharacterType>
-inline void CSSParser::detectNumberToken(CharacterType* type, int length)
-{
- ASSERT(length > 0);
-
- switch (toASCIILowerUnchecked(type[0])) {
- case 'c':
- if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'm'))
- m_token = CMS;
- else if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'h'))
- m_token = CHS;
- return;
-
- case 'd':
- if (length == 3 && isASCIIAlphaCaselessEqual(type[1], 'e') && isASCIIAlphaCaselessEqual(type[2], 'g'))
- m_token = DEGS;
-#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
- else if (length > 2 && isASCIIAlphaCaselessEqual(type[1], 'p')) {
- if (length == 4) {
- // There is a discussion about the name of this unit on www-style.
- // Keep this compile time guard in place until that is resolved.
- // http://lists.w3.org/Archives/Public/www-style/2012May/0915.html
- if (isASCIIAlphaCaselessEqual(type[2], 'p') && isASCIIAlphaCaselessEqual(type[3], 'x'))
- m_token = DPPX;
- else if (isASCIIAlphaCaselessEqual(type[2], 'c') && isASCIIAlphaCaselessEqual(type[3], 'm'))
- m_token = DPCM;
- } else if (length == 3 && isASCIIAlphaCaselessEqual(type[2], 'i'))
- m_token = DPI;
- }
-#endif
- return;
-
- case 'e':
- if (length == 2) {
- if (isASCIIAlphaCaselessEqual(type[1], 'm'))
- m_token = EMS;
- else if (isASCIIAlphaCaselessEqual(type[1], 'x'))
- m_token = EXS;
- }
- return;
-
- case 'f':
- if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'r'))
- m_token = FR;
- return;
- case 'g':
- if (length == 4 && isASCIIAlphaCaselessEqual(type[1], 'r')
- && isASCIIAlphaCaselessEqual(type[2], 'a') && isASCIIAlphaCaselessEqual(type[3], 'd'))
- m_token = GRADS;
- return;
-
- case 'h':
- if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'z'))
- m_token = HERTZ;
- return;
-
- case 'i':
- if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'n'))
- m_token = INS;
- return;
-
- case 'k':
- if (length == 3 && isASCIIAlphaCaselessEqual(type[1], 'h') && isASCIIAlphaCaselessEqual(type[2], 'z'))
- m_token = KHERTZ;
- return;
-
- case 'm':
- if (length == 2) {
- if (isASCIIAlphaCaselessEqual(type[1], 'm'))
- m_token = MMS;
- else if (isASCIIAlphaCaselessEqual(type[1], 's'))
- m_token = MSECS;
- }
- return;
-
- case 'p':
- if (length == 2) {
- if (isASCIIAlphaCaselessEqual(type[1], 'x'))
- m_token = PXS;
- else if (isASCIIAlphaCaselessEqual(type[1], 't'))
- m_token = PTS;
- else if (isASCIIAlphaCaselessEqual(type[1], 'c'))
- m_token = PCS;
- }
- return;
-
- case 'r':
- if (length == 3) {
- if (isASCIIAlphaCaselessEqual(type[1], 'a') && isASCIIAlphaCaselessEqual(type[2], 'd'))
- m_token = RADS;
- else if (isASCIIAlphaCaselessEqual(type[1], 'e') && isASCIIAlphaCaselessEqual(type[2], 'm'))
- m_token = REMS;
- }
- return;
-
- case 's':
- if (length == 1)
- m_token = SECS;
- return;
-
- case 't':
- if (length == 4 && isASCIIAlphaCaselessEqual(type[1], 'u')
- && isASCIIAlphaCaselessEqual(type[2], 'r') && isASCIIAlphaCaselessEqual(type[3], 'n'))
- m_token = TURNS;
- return;
- case 'v':
- if (length == 2) {
- if (isASCIIAlphaCaselessEqual(type[1], 'w'))
- m_token = VW;
- else if (isASCIIAlphaCaselessEqual(type[1], 'h'))
- m_token = VH;
- } else if (length == 4 && isASCIIAlphaCaselessEqual(type[1], 'm')) {
- if (isASCIIAlphaCaselessEqual(type[2], 'i') && isASCIIAlphaCaselessEqual(type[3], 'n'))
- m_token = VMIN;
- else if (isASCIIAlphaCaselessEqual(type[2], 'a') && isASCIIAlphaCaselessEqual(type[3], 'x'))
- m_token = VMAX;
- }
- return;
-
- default:
- if (type[0] == '_' && length == 5 && type[1] == '_' && isASCIIAlphaCaselessEqual(type[2], 'q')
- && isASCIIAlphaCaselessEqual(type[3], 'e') && isASCIIAlphaCaselessEqual(type[4], 'm'))
- m_token = QEMS;
- return;
- }
-}
-
-template <typename CharacterType>
-inline void CSSParser::detectDashToken(int length)
-{
- CharacterType* name = tokenStart<CharacterType>();
-
- if (length == 11) {
- if (isASCIIAlphaCaselessEqual(name[10], 'y') && isEqualToCSSIdentifier(name + 1, "webkit-an"))
- m_token = ANYFUNCTION;
- else if (isASCIIAlphaCaselessEqual(name[10], 'n') && isEqualToCSSIdentifier(name + 1, "webkit-mi"))
- m_token = MINFUNCTION;
- else if (isASCIIAlphaCaselessEqual(name[10], 'x') && isEqualToCSSIdentifier(name + 1, "webkit-ma"))
- m_token = MAXFUNCTION;
- } else if (length == 12 && isEqualToCSSIdentifier(name + 1, "webkit-calc"))
- m_token = CALCFUNCTION;
-}
-
-template <typename CharacterType>
-inline void CSSParser::detectAtToken(int length, bool hasEscape)
-{
- CharacterType* name = tokenStart<CharacterType>();
- ASSERT(name[0] == '@' && length >= 2);
-
- // charset, font-face, import, media, namespace, page, supports,
- // -webkit-keyframes, and -webkit-mediaquery are not affected by hasEscape.
- switch (toASCIILowerUnchecked(name[1])) {
- case 'b':
- if (hasEscape)
- return;
-
- switch (length) {
- case 12:
- if (isEqualToCSSIdentifier(name + 2, "ottom-left"))
- m_token = BOTTOMLEFT_SYM;
- return;
-
- case 13:
- if (isEqualToCSSIdentifier(name + 2, "ottom-right"))
- m_token = BOTTOMRIGHT_SYM;
- return;
-
- case 14:
- if (isEqualToCSSIdentifier(name + 2, "ottom-center"))
- m_token = BOTTOMCENTER_SYM;
- return;
-
- case 19:
- if (isEqualToCSSIdentifier(name + 2, "ottom-left-corner"))
- m_token = BOTTOMLEFTCORNER_SYM;
- return;
-
- case 20:
- if (isEqualToCSSIdentifier(name + 2, "ottom-right-corner"))
- m_token = BOTTOMRIGHTCORNER_SYM;
- return;
- }
- return;
-
- case 'c':
- if (length == 8 && isEqualToCSSIdentifier(name + 2, "harset"))
- m_token = CHARSET_SYM;
- return;
-
- case 'f':
- if (length == 10 && isEqualToCSSIdentifier(name + 2, "ont-face"))
- m_token = FONT_FACE_SYM;
- return;
-
- case 'i':
- if (length == 7 && isEqualToCSSIdentifier(name + 2, "mport")) {
- m_parsingMode = MediaQueryMode;
- m_token = IMPORT_SYM;
- }
- return;
-
- case 'k':
- if (length == 10 && isEqualToCSSIdentifier(name + 2, "eyframes"))
- m_token = KEYFRAMES_SYM;
- else if (length == 14 && !hasEscape && isEqualToCSSIdentifier(name + 2, "eyframe-rule"))
- m_token = KEYFRAME_RULE_SYM;
- return;
-
- case 'l':
- if (hasEscape)
- return;
-
- if (length == 9) {
- if (isEqualToCSSIdentifier(name + 2, "eft-top"))
- m_token = LEFTTOP_SYM;
- } else if (length == 12) {
- // Checking the last character first could further reduce the possibile cases.
- if (isASCIIAlphaCaselessEqual(name[11], 'e') && isEqualToCSSIdentifier(name + 2, "eft-middl"))
- m_token = LEFTMIDDLE_SYM;
- else if (isASCIIAlphaCaselessEqual(name[11], 'm') && isEqualToCSSIdentifier(name + 2, "eft-botto"))
- m_token = LEFTBOTTOM_SYM;
- }
- return;
-
- case 'm':
- if (length == 6 && isEqualToCSSIdentifier(name + 2, "edia")) {
- m_parsingMode = MediaQueryMode;
- m_token = MEDIA_SYM;
- }
- return;
-
- case 'n':
- if (length == 10 && isEqualToCSSIdentifier(name + 2, "amespace"))
- m_token = NAMESPACE_SYM;
- return;
-
- case 'p':
- if (length == 5 && isEqualToCSSIdentifier(name + 2, "age"))
- m_token = PAGE_SYM;
- return;
-
- case 'r':
- if (hasEscape)
- return;
-
- if (length == 10) {
- if (isEqualToCSSIdentifier(name + 2, "ight-top"))
- m_token = RIGHTTOP_SYM;
- } else if (length == 13) {
- // Checking the last character first could further reduce the possibile cases.
- if (isASCIIAlphaCaselessEqual(name[12], 'e') && isEqualToCSSIdentifier(name + 2, "ight-middl"))
- m_token = RIGHTMIDDLE_SYM;
- else if (isASCIIAlphaCaselessEqual(name[12], 'm') && isEqualToCSSIdentifier(name + 2, "ight-botto"))
- m_token = RIGHTBOTTOM_SYM;
- }
- return;
-
- case 's':
- if (length == 9 && isEqualToCSSIdentifier(name + 2, "upports")) {
- m_parsingMode = SupportsMode;
- m_token = SUPPORTS_SYM;
- }
- return;
-
- case 't':
- if (hasEscape)
- return;
-
- switch (length) {
- case 9:
- if (isEqualToCSSIdentifier(name + 2, "op-left"))
- m_token = TOPLEFT_SYM;
- return;
-
- case 10:
- if (isEqualToCSSIdentifier(name + 2, "op-right"))
- m_token = TOPRIGHT_SYM;
- return;
-
- case 11:
- if (isEqualToCSSIdentifier(name + 2, "op-center"))
- m_token = TOPCENTER_SYM;
- return;
-
- case 16:
- if (isEqualToCSSIdentifier(name + 2, "op-left-corner"))
- m_token = TOPLEFTCORNER_SYM;
- return;
-
- case 17:
- if (isEqualToCSSIdentifier(name + 2, "op-right-corner"))
- m_token = TOPRIGHTCORNER_SYM;
- return;
- }
- return;
-
- case '-':
- switch (length) {
- case 13:
- if (!hasEscape && isEqualToCSSIdentifier(name + 2, "webkit-rule"))
- m_token = WEBKIT_RULE_SYM;
- return;
-
- case 14:
- if (hasEscape)
- return;
-
- // Checking the last character first could further reduce the possibile cases.
- if (isASCIIAlphaCaselessEqual(name[13], 's') && isEqualToCSSIdentifier(name + 2, "webkit-decl"))
- m_token = WEBKIT_DECLS_SYM;
- else if (isASCIIAlphaCaselessEqual(name[13], 'e') && isEqualToCSSIdentifier(name + 2, "webkit-valu"))
- m_token = WEBKIT_VALUE_SYM;
- return;
-
- case 15:
- if (hasEscape)
- return;
-
-#if ENABLE(CSS_REGIONS)
- if (isASCIIAlphaCaselessEqual(name[14], 'n') && isEqualToCSSIdentifier(name + 2, "webkit-regio"))
- m_token = WEBKIT_REGION_RULE_SYM;
-#endif
- return;
-
- case 17:
- if (hasEscape)
- return;
-
- if (isASCIIAlphaCaselessEqual(name[16], 'r') && isEqualToCSSIdentifier(name + 2, "webkit-selecto"))
- m_token = WEBKIT_SELECTOR_SYM;
-#if ENABLE(CSS_DEVICE_ADAPTATION)
- else if (isASCIIAlphaCaselessEqual(name[16], 't') && isEqualToCSSIdentifier(name + 2, "webkit-viewpor"))
- m_token = WEBKIT_VIEWPORT_RULE_SYM;
-#endif
- return;
-
- case 18:
- if (isEqualToCSSIdentifier(name + 2, "webkit-keyframes"))
- m_token = KEYFRAMES_SYM;
- else if (isEqualToCSSIdentifier(name + 2, "webkit-sizesattr"))
- m_token = WEBKIT_SIZESATTR_SYM;
- return;
-
- case 19:
- if (isEqualToCSSIdentifier(name + 2, "webkit-mediaquery")) {
- m_parsingMode = MediaQueryMode;
- m_token = WEBKIT_MEDIAQUERY_SYM;
- }
- return;
-
- case 22:
- if (!hasEscape && isEqualToCSSIdentifier(name + 2, "webkit-keyframe-rule"))
- m_token = KEYFRAME_RULE_SYM;
- return;
-
- case 27:
- if (isEqualToCSSIdentifier(name + 2, "webkit-supports-condition")) {
- m_parsingMode = SupportsMode;
- m_token = WEBKIT_SUPPORTS_CONDITION_SYM;
- }
- return;
- }
- }
-}
-
-template <typename CharacterType>
-inline void CSSParser::detectSupportsToken(int length)
-{
- ASSERT(m_parsingMode == SupportsMode);
- CharacterType* name = tokenStart<CharacterType>();
-
- if (length == 2) {
- if (isASCIIAlphaCaselessEqual(name[0], 'o') && isASCIIAlphaCaselessEqual(name[1], 'r'))
- m_token = SUPPORTS_OR;
- } else if (length == 3) {
- if (isASCIIAlphaCaselessEqual(name[0], 'a') && isASCIIAlphaCaselessEqual(name[1], 'n') && isASCIIAlphaCaselessEqual(name[2], 'd'))
- m_token = SUPPORTS_AND;
- else if (isASCIIAlphaCaselessEqual(name[0], 'n') && isASCIIAlphaCaselessEqual(name[1], 'o') && isASCIIAlphaCaselessEqual(name[2], 't'))
- m_token = SUPPORTS_NOT;
- }
-}
-
-template <typename SrcCharacterType>
-int CSSParser::realLex(void* yylvalWithoutType)
-{
- YYSTYPE* yylval = static_cast<YYSTYPE*>(yylvalWithoutType);
- // Write pointer for the next character.
- SrcCharacterType* result;
- CSSParserString resultString;
- bool hasEscape;
-
- // The input buffer is terminated by a \0 character, so
- // it is safe to read one character ahead of a known non-null.
-#ifndef NDEBUG
- // In debug we check with an ASSERT that the length is > 0 for string types.
- yylval->string.clear();
-#endif
-
-restartAfterComment:
- result = currentCharacter<SrcCharacterType>();
- setTokenStart(result);
- m_tokenStartLineNumber = m_lineNumber;
- m_tokenStartColumnNumber = tokenStartOffset() - m_columnOffsetForLine;
- m_token = *currentCharacter<SrcCharacterType>();
- ++currentCharacter<SrcCharacterType>();
-
- switch ((m_token <= 127) ? typesOfASCIICharacters[m_token] : CharacterIdentifierStart) {
- case CharacterCaselessU:
- if (UNLIKELY(*currentCharacter<SrcCharacterType>() == '+')) {
- if (parseUnicodeRange<SrcCharacterType>()) {
- m_token = UNICODERANGE;
- yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
- break;
- }
- }
- FALLTHROUGH; // To CharacterIdentifierStart.
-
- case CharacterIdentifierStart:
- --currentCharacter<SrcCharacterType>();
- parseIdentifier(result, yylval->string, hasEscape);
- m_token = IDENT;
-
- if (UNLIKELY(*currentCharacter<SrcCharacterType>() == '(')) {
- if (m_parsingMode == SupportsMode && !hasEscape) {
- detectSupportsToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
- if (m_token != IDENT)
- break;
- }
- m_token = FUNCTION;
- bool shouldSkipParenthesis = true;
- if (!hasEscape) {
- bool detected = detectFunctionTypeToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
- if (!detected && m_parsingMode == MediaQueryMode) {
- // ... and(max-width: 480px) ... looks like a function, but in fact it is not,
- // so run more detection code in the MediaQueryMode.
- detectMediaQueryToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
- shouldSkipParenthesis = false;
- }
- }
-
- if (LIKELY(shouldSkipParenthesis)) {
- ++currentCharacter<SrcCharacterType>();
- ++result;
- ++yylval->string.m_length;
- }
-
- if (token() == URI) {
- m_token = FUNCTION;
- // Check whether it is really an URI.
- if (yylval->string.is8Bit())
- parseURI<LChar>(yylval->string);
- else
- parseURI<UChar>(yylval->string);
- }
- } else if (UNLIKELY(m_parsingMode != NormalMode) && !hasEscape) {
- if (m_parsingMode == MediaQueryMode)
- detectMediaQueryToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
- else if (m_parsingMode == SupportsMode)
- detectSupportsToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
- else if (m_parsingMode == NthChildMode && isASCIIAlphaCaselessEqual(tokenStart<SrcCharacterType>()[0], 'n')) {
- if (result - tokenStart<SrcCharacterType>() == 1) {
- // String "n" is IDENT but "n+1" is NTH.
- if (parseNthChildExtra<SrcCharacterType>()) {
- m_token = NTH;
- yylval->string.m_length = currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>();
- }
- } else if (result - tokenStart<SrcCharacterType>() >= 2 && tokenStart<SrcCharacterType>()[1] == '-') {
- // String "n-" is IDENT but "n-1" is NTH.
- // Set currentCharacter to '-' to continue parsing.
- SrcCharacterType* nextCharacter = result;
- currentCharacter<SrcCharacterType>() = tokenStart<SrcCharacterType>() + 1;
- if (parseNthChildExtra<SrcCharacterType>()) {
- m_token = NTH;
- yylval->string.setLength(currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
- } else {
- // Revert the change to currentCharacter if unsuccessful.
- currentCharacter<SrcCharacterType>() = nextCharacter;
- }
- }
- }
- }
- if (m_parsingMode == NthChildMode && m_token == IDENT && yylval->string.length() == 2 && equalLettersIgnoringASCIICase(yylval->string, "of")) {
- m_parsingMode = NormalMode;
- m_token = NTHCHILDSELECTORSEPARATOR;
- }
- break;
-
- case CharacterDot:
- if (!isASCIIDigit(currentCharacter<SrcCharacterType>()[0]))
- break;
- FALLTHROUGH; // To CharacterNumber.
-
- case CharacterNumber: {
- bool dotSeen = (m_token == '.');
-
- while (true) {
- if (!isASCIIDigit(currentCharacter<SrcCharacterType>()[0])) {
- // Only one dot is allowed for a number,
- // and it must be followed by a digit.
- if (currentCharacter<SrcCharacterType>()[0] != '.' || dotSeen || !isASCIIDigit(currentCharacter<SrcCharacterType>()[1]))
- break;
- dotSeen = true;
- }
- ++currentCharacter<SrcCharacterType>();
- }
-
- if (UNLIKELY(m_parsingMode == NthChildMode) && !dotSeen && isASCIIAlphaCaselessEqual(*currentCharacter<SrcCharacterType>(), 'n')) {
- // "[0-9]+n" is always an NthChild.
- ++currentCharacter<SrcCharacterType>();
- parseNthChildExtra<SrcCharacterType>();
- m_token = NTH;
- yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
- break;
- }
-
- // Use SVG parser for numbers on SVG presentation attributes.
- if (m_context.mode == SVGAttributeMode) {
- // We need to take care of units like 'em' or 'ex'.
- SrcCharacterType* character = currentCharacter<SrcCharacterType>();
- if (isASCIIAlphaCaselessEqual(*character, 'e')) {
- ASSERT(character - tokenStart<SrcCharacterType>() > 0);
- ++character;
- if (*character == '-' || *character == '+' || isASCIIDigit(*character)) {
- ++character;
- while (isASCIIDigit(*character))
- ++character;
- // Use FLOATTOKEN if the string contains exponents.
- dotSeen = true;
- currentCharacter<SrcCharacterType>() = character;
- }
- }
- if (!parseSVGNumber(tokenStart<SrcCharacterType>(), character - tokenStart<SrcCharacterType>(), yylval->number))
- break;
- } else
- yylval->number = charactersToDouble(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
-
- // Type of the function.
- if (isIdentifierStart<SrcCharacterType>()) {
- SrcCharacterType* type = currentCharacter<SrcCharacterType>();
- result = currentCharacter<SrcCharacterType>();
-
- parseIdentifier(result, resultString, hasEscape);
-
- m_token = DIMEN;
- if (!hasEscape)
- detectNumberToken(type, currentCharacter<SrcCharacterType>() - type);
-
- if (m_token == DIMEN) {
- // The decoded number is overwritten, but this is intentional.
- yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
- }
- } else if (*currentCharacter<SrcCharacterType>() == '%') {
- // Although the CSS grammar says {num}% we follow
- // webkit at the moment which uses {num}%+.
- do {
- ++currentCharacter<SrcCharacterType>();
- } while (*currentCharacter<SrcCharacterType>() == '%');
- m_token = PERCENTAGE;
- } else
- m_token = dotSeen ? FLOATTOKEN : INTEGER;
- break;
- }
-
- case CharacterDash:
- if (isIdentifierStartAfterDash(currentCharacter<SrcCharacterType>())) {
- --currentCharacter<SrcCharacterType>();
- parseIdentifier(result, resultString, hasEscape);
- m_token = IDENT;
-
- if (*currentCharacter<SrcCharacterType>() == '(') {
- m_token = FUNCTION;
- if (!hasEscape)
- detectDashToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
- ++currentCharacter<SrcCharacterType>();
- ++result;
- } else if (UNLIKELY(m_parsingMode == NthChildMode) && !hasEscape && isASCIIAlphaCaselessEqual(tokenStart<SrcCharacterType>()[1], 'n')) {
- if (result - tokenStart<SrcCharacterType>() == 2) {
- // String "-n" is IDENT but "-n+1" is NTH.
- if (parseNthChildExtra<SrcCharacterType>()) {
- m_token = NTH;
- result = currentCharacter<SrcCharacterType>();
- }
- } else if (result - tokenStart<SrcCharacterType>() >= 3 && tokenStart<SrcCharacterType>()[2] == '-') {
- // String "-n-" is IDENT but "-n-1" is NTH.
- // Set currentCharacter to second '-' of '-n-' to continue parsing.
- SrcCharacterType* nextCharacter = result;
- currentCharacter<SrcCharacterType>() = tokenStart<SrcCharacterType>() + 2;
- if (parseNthChildExtra<SrcCharacterType>()) {
- m_token = NTH;
- result = currentCharacter<SrcCharacterType>();
- } else {
- // Revert the change to currentCharacter if unsuccessful.
- currentCharacter<SrcCharacterType>() = nextCharacter;
- }
- }
- }
- resultString.setLength(result - tokenStart<SrcCharacterType>());
- yylval->string = resultString;
- } else if (currentCharacter<SrcCharacterType>()[0] == '-' && currentCharacter<SrcCharacterType>()[1] == '>') {
- currentCharacter<SrcCharacterType>() += 2;
- m_token = SGML_CD;
- } else if (currentCharacter<SrcCharacterType>()[0] == '-') {
- --currentCharacter<SrcCharacterType>();
- parseIdentifier(result, resultString, hasEscape);
- m_token = CUSTOM_PROPERTY;
- yylval->string = resultString;
- } else if (UNLIKELY(m_parsingMode == NthChildMode)) {
- // "-[0-9]+n" is always an NthChild.
- if (parseNthChild<SrcCharacterType>()) {
- parseNthChildExtra<SrcCharacterType>();
- m_token = NTH;
- yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
- }
- }
- break;
-
- case CharacterOther:
- // m_token is simply the current character.
- break;
-
- case CharacterNull:
- // Do not advance pointer at the end of input.
- --currentCharacter<SrcCharacterType>();
- break;
-
- case CharacterWhiteSpace:
- m_token = WHITESPACE;
- // Might start with a '\n'.
- --currentCharacter<SrcCharacterType>();
- do {
- if (*currentCharacter<SrcCharacterType>() == '\n') {
- ++m_lineNumber;
- m_columnOffsetForLine = currentCharacterOffset() + 1;
- }
- ++currentCharacter<SrcCharacterType>();
- } while (*currentCharacter<SrcCharacterType>() <= ' ' && (typesOfASCIICharacters[*currentCharacter<SrcCharacterType>()] == CharacterWhiteSpace));
- break;
-
- case CharacterEndConditionQuery: {
- bool isParsingCondition = m_parsingMode == MediaQueryMode || m_parsingMode == SupportsMode;
- if (isParsingCondition)
- m_parsingMode = NormalMode;
- break;
- }
-
- case CharacterEndNthChild:
- if (m_parsingMode == NthChildMode)
- m_parsingMode = NormalMode;
- break;
-
- case CharacterQuote:
- if (checkAndSkipString(currentCharacter<SrcCharacterType>(), m_token)) {
- ++result;
- parseString<SrcCharacterType>(result, yylval->string, m_token);
- m_token = STRING;
- }
- break;
-
- case CharacterExclamationMark: {
- SrcCharacterType* start = skipWhiteSpace(currentCharacter<SrcCharacterType>());
- if (isEqualToCSSIdentifier(start, "important")) {
- m_token = IMPORTANT_SYM;
- currentCharacter<SrcCharacterType>() = start + 9;
- }
- break;
- }
-
- case CharacterHashmark: {
- SrcCharacterType* start = currentCharacter<SrcCharacterType>();
- result = currentCharacter<SrcCharacterType>();
-
- if (isASCIIDigit(*currentCharacter<SrcCharacterType>())) {
- // This must be a valid hex number token.
- do {
- ++currentCharacter<SrcCharacterType>();
- } while (isASCIIHexDigit(*currentCharacter<SrcCharacterType>()));
- m_token = HEX;
- yylval->string.init(start, currentCharacter<SrcCharacterType>() - start);
- } else if (isIdentifierStart<SrcCharacterType>()) {
- m_token = IDSEL;
- parseIdentifier(result, yylval->string, hasEscape);
- if (!hasEscape) {
- // Check whether the identifier is also a valid hex number.
- SrcCharacterType* current = start;
- m_token = HEX;
- do {
- if (!isASCIIHexDigit(*current)) {
- m_token = IDSEL;
- break;
- }
- ++current;
- } while (current < result);
- }
- }
- break;
- }
-
- case CharacterSlash:
- // Ignore comments. They are not even considered as white spaces.
- if (*currentCharacter<SrcCharacterType>() == '*') {
- ++currentCharacter<SrcCharacterType>();
- while (currentCharacter<SrcCharacterType>()[0] != '*' || currentCharacter<SrcCharacterType>()[1] != '/') {
- if (*currentCharacter<SrcCharacterType>() == '\n') {
- ++m_lineNumber;
- m_columnOffsetForLine = currentCharacterOffset() + 1;
- } else if (*currentCharacter<SrcCharacterType>() == '\0') {
- // Unterminated comments are simply ignored.
- currentCharacter<SrcCharacterType>() -= 2;
- break;
- }
- ++currentCharacter<SrcCharacterType>();
- }
- currentCharacter<SrcCharacterType>() += 2;
- goto restartAfterComment;
- }
- break;
-
- case CharacterDollar:
- if (*currentCharacter<SrcCharacterType>() == '=') {
- ++currentCharacter<SrcCharacterType>();
- m_token = ENDSWITH;
- }
- break;
-
- case CharacterAsterisk:
- if (*currentCharacter<SrcCharacterType>() == '=') {
- ++currentCharacter<SrcCharacterType>();
- m_token = CONTAINS;
- }
- break;
-
- case CharacterPlus:
- if (UNLIKELY(m_parsingMode == NthChildMode)) {
- // Simplest case. "+[0-9]*n" is always NthChild.
- if (parseNthChild<SrcCharacterType>()) {
- parseNthChildExtra<SrcCharacterType>();
- m_token = NTH;
- yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
- }
- }
- break;
-
- case CharacterLess:
- if (currentCharacter<SrcCharacterType>()[0] == '!' && currentCharacter<SrcCharacterType>()[1] == '-' && currentCharacter<SrcCharacterType>()[2] == '-') {
- currentCharacter<SrcCharacterType>() += 3;
- m_token = SGML_CD;
- }
- break;
-
- case CharacterAt:
- if (isIdentifierStart<SrcCharacterType>()) {
- m_token = ATKEYWORD;
- ++result;
- parseIdentifier(result, resultString, hasEscape);
- detectAtToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>(), hasEscape);
- }
- break;
-
- case CharacterBackSlash:
- if (isCSSEscape(*currentCharacter<SrcCharacterType>())) {
- --currentCharacter<SrcCharacterType>();
- parseIdentifier(result, yylval->string, hasEscape);
- m_token = IDENT;
- }
- if (m_parsingMode == NthChildMode && m_token == IDENT && yylval->string.length() == 2 && equalLettersIgnoringASCIICase(yylval->string, "of")) {
- m_parsingMode = NormalMode;
- m_token = NTHCHILDSELECTORSEPARATOR;
- }
- break;
-
- case CharacterXor:
- if (*currentCharacter<SrcCharacterType>() == '=') {
- ++currentCharacter<SrcCharacterType>();
- m_token = BEGINSWITH;
- }
- break;
-
- case CharacterVerticalBar:
- if (*currentCharacter<SrcCharacterType>() == '=') {
- ++currentCharacter<SrcCharacterType>();
- m_token = DASHMATCH;
- }
- break;
-
- case CharacterTilde:
- if (*currentCharacter<SrcCharacterType>() == '=') {
- ++currentCharacter<SrcCharacterType>();
- m_token = INCLUDES;
- }
- break;
-
- default:
- ASSERT_NOT_REACHED();
- break;
- }
-
- return token();
-}
-
-RefPtr<StyleRuleImport> CSSParser::createImportRule(const CSSParserString& url, RefPtr<MediaQuerySet>&& media)
-{
- if (!media || !m_allowImportRules) {
- popRuleData();
- return nullptr;
- }
- auto rule = StyleRuleImport::create(url, media.releaseNonNull());
- processAndAddNewRuleToSourceTreeIfNeeded();
- return WTFMove(rule);
-}
-
-Ref<StyleRuleMedia> CSSParser::createMediaRule(RefPtr<MediaQuerySet>&& media, RuleList* rules)
-{
- m_allowImportRules = m_allowNamespaceDeclarations = false;
- RefPtr<StyleRuleMedia> rule;
- RuleList emptyRules;
- if (!media) {
- // To comply with w3c test suite expectation, create an empty media query
- // even when it is syntactically incorrect.
- rule = StyleRuleMedia::create(MediaQuerySet::create(), emptyRules);
- } else {
- media->shrinkToFit();
- rule = StyleRuleMedia::create(media.releaseNonNull(), rules ? *rules : emptyRules);
- }
- processAndAddNewRuleToSourceTreeIfNeeded();
- return rule.releaseNonNull();
-}
-
-Ref<StyleRuleMedia> CSSParser::createEmptyMediaRule(RuleList* rules)
-{
- return createMediaRule(MediaQuerySet::create(), rules);
-}
-
-Ref<StyleRuleSupports> CSSParser::createSupportsRule(bool conditionIsSupported, RuleList* rules)
-{
- m_allowImportRules = m_allowNamespaceDeclarations = false;
-
- RefPtr<CSSRuleSourceData> data = popSupportsRuleData();
- String conditionText;
- unsigned conditionOffset = data->ruleHeaderRange.start + 9;
- unsigned conditionLength = data->ruleHeaderRange.length() - 9;
-
- if (is8BitSource())
- conditionText = String(m_dataStart8.get() + conditionOffset, conditionLength).stripWhiteSpace();
- else
- conditionText = String(m_dataStart16.get() + conditionOffset, conditionLength).stripWhiteSpace();
-
- RefPtr<StyleRuleSupports> rule;
- if (rules)
- rule = StyleRuleSupports::create(conditionText, conditionIsSupported, *rules);
- else {
- RuleList emptyRules;
- rule = StyleRuleSupports::create(conditionText, conditionIsSupported, emptyRules);
- }
-
- processAndAddNewRuleToSourceTreeIfNeeded();
-
- return rule.releaseNonNull();
-}
-
-void CSSParser::markSupportsRuleHeaderStart()
-{
- if (!m_supportsRuleDataStack)
- m_supportsRuleDataStack = std::make_unique<RuleSourceDataList>();
-
- auto data = CSSRuleSourceData::create(CSSRuleSourceData::SUPPORTS_RULE);
- data->ruleHeaderRange.start = tokenStartOffset();
- m_supportsRuleDataStack->append(WTFMove(data));
-}
-
-void CSSParser::markSupportsRuleHeaderEnd()
-{
- ASSERT(m_supportsRuleDataStack && !m_supportsRuleDataStack->isEmpty());
-
- if (is8BitSource())
- m_supportsRuleDataStack->last()->ruleHeaderRange.end = tokenStart<LChar>() - m_dataStart8.get();
- else
- m_supportsRuleDataStack->last()->ruleHeaderRange.end = tokenStart<UChar>() - m_dataStart16.get();
-}
-
-Ref<CSSRuleSourceData> CSSParser::popSupportsRuleData()
-{
- ASSERT(m_supportsRuleDataStack && !m_supportsRuleDataStack->isEmpty());
- return m_supportsRuleDataStack->takeLast();
-}
-
-void CSSParser::processAndAddNewRuleToSourceTreeIfNeeded()
-{
- if (!isExtractingSourceData())
- return;
- markRuleBodyEnd();
- Ref<CSSRuleSourceData> rule = *popRuleData();
- fixUnparsedPropertyRanges(rule);
- addNewRuleToSourceTree(WTFMove(rule));
-}
-
-void CSSParser::addNewRuleToSourceTree(Ref<CSSRuleSourceData>&& rule)
-{
- // Precondition: (isExtractingSourceData()).
- if (!m_ruleSourceDataResult)
- return;
- if (m_currentRuleDataStack->isEmpty())
- m_ruleSourceDataResult->append(WTFMove(rule));
- else
- m_currentRuleDataStack->last()->childRules.append(WTFMove(rule));
-}
-
-RefPtr<CSSRuleSourceData> CSSParser::popRuleData()
-{
- if (!m_ruleSourceDataResult)
- return nullptr;
-
- ASSERT(!m_currentRuleDataStack->isEmpty());
- m_currentRuleData = nullptr;
- return m_currentRuleDataStack->takeLast();
-}
-
-void CSSParser::syntaxError(const Location& location, SyntaxErrorType error)
-{
- if (!isLoggingErrors())
- return;
-
- StringBuilder builder;
- switch (error) {
- case PropertyDeclarationError:
- builder.appendLiteral("Invalid CSS property declaration at: ");
- break;
- default:
- builder.appendLiteral("Unexpected CSS token: ");
- break;
- }
-
- if (location.token.is8Bit())
- builder.append(location.token.characters8(), location.token.length());
- else
- builder.append(location.token.characters16(), location.token.length());
-
- logError(builder.toString(), location.lineNumber, location.columnNumber);
-
- m_ignoreErrorsInDeclaration = true;
-}
-
-bool CSSParser::isLoggingErrors()
-{
- return m_logErrors && !m_ignoreErrorsInDeclaration;
-}
-
-void CSSParser::logError(const String& message, int lineNumber, int columnNumber)
-{
- PageConsoleClient& console = m_styleSheet->singleOwnerDocument()->page()->console();
- console.addMessage(MessageSource::CSS, MessageLevel::Warning, message, m_styleSheet->baseURL().string(), lineNumber + 1, columnNumber + 1);
-}
-
-Ref<StyleRuleKeyframes> CSSParser::createKeyframesRule(const String& name, std::unique_ptr<Vector<RefPtr<StyleKeyframe>>> keyframes)
-{
- m_allowImportRules = m_allowNamespaceDeclarations = false;
- Ref<StyleRuleKeyframes> rule = StyleRuleKeyframes::create();
- for (auto& keyFrame : *keyframes)
- rule->parserAppendKeyframe(WTFMove(keyFrame));
- rule->setName(name);
- processAndAddNewRuleToSourceTreeIfNeeded();
- return rule;
-}
-
-RefPtr<StyleRule> CSSParser::createStyleRule(Vector<std::unique_ptr<CSSParserSelector>>* selectors)
-{
- RefPtr<StyleRule> rule;
- if (selectors) {
- m_allowImportRules = false;
- m_allowNamespaceDeclarations = false;
- rule = StyleRule::create(m_lastSelectorLineNumber, createStyleProperties());
- rule->parserAdoptSelectorVector(*selectors);
- processAndAddNewRuleToSourceTreeIfNeeded();
- } else
- popRuleData();
- clearProperties();
- return rule;
-}
-
-RefPtr<StyleRuleFontFace> CSSParser::createFontFaceRule()
-{
- m_allowImportRules = m_allowNamespaceDeclarations = false;
- for (auto& property : m_parsedProperties) {
- if (property.id() == CSSPropertyFontFamily && (!is<CSSValueList>(*property.value()) || downcast<CSSValueList>(*property.value()).length() != 1)) {
- // Unlike font-family property, font-family descriptor in @font-face rule
- // has to be a value list with exactly one family name. It cannot have a
- // have 'initial' value and cannot 'inherit' from parent.
- // See http://dev.w3.org/csswg/css3-fonts/#font-family-desc
- clearProperties();
- popRuleData();
- return nullptr;
- }
- }
- auto rule = StyleRuleFontFace::create(createStyleProperties());
- clearProperties();
- processAndAddNewRuleToSourceTreeIfNeeded();
- return WTFMove(rule);
-}
-
-void CSSParser::addNamespace(const AtomicString& prefix, const AtomicString& uri)
-{
- if (!m_styleSheet || !m_allowNamespaceDeclarations)
- return;
- m_allowImportRules = false;
- m_styleSheet->parserAddNamespace(prefix, uri);
- if (prefix.isEmpty() && !uri.isNull())
- m_defaultNamespace = uri;
-}
-
-QualifiedName CSSParser::determineNameInNamespace(const AtomicString& prefix, const AtomicString& localName)
-{
- if (prefix.isNull())
- return QualifiedName(nullAtom, localName, nullAtom); // No namespace. If an element/attribute has a namespace, we won't match it.
- if (prefix.isEmpty())
- return QualifiedName(emptyAtom, localName, emptyAtom); // Empty namespace.
- if (prefix == starAtom)
- return QualifiedName(prefix, localName, starAtom); // We'll match any namespace.
-
- if (!m_styleSheet)
- return QualifiedName(prefix, localName, m_defaultNamespace);
- return QualifiedName(prefix, localName, m_styleSheet->determineNamespace(prefix));
-}
-
-void CSSParser::rewriteSpecifiersWithNamespaceIfNeeded(CSSParserSelector& specifiers)
-{
- if (m_defaultNamespace != starAtom || specifiers.isCustomPseudoElement()) {
- QualifiedName elementName(nullAtom, starAtom, m_defaultNamespace);
- rewriteSpecifiersWithElementName(elementName, specifiers, /*tagIsForNamespaceRule*/true);
- }
-}
-
-void CSSParser::rewriteSpecifiersWithElementName(const AtomicString& namespacePrefix, const AtomicString& elementName, CSSParserSelector& specifiers)
-{
- QualifiedName tag(determineNameInNamespace(namespacePrefix, elementName));
- rewriteSpecifiersWithElementName(tag, specifiers, false);
-}
-
-void CSSParser::rewriteSpecifiersWithElementName(const QualifiedName& tag, CSSParserSelector& specifiers, bool tagIsForNamespaceRule)
-{
- if (!specifiers.isCustomPseudoElement()) {
- if (tag == anyQName())
- return;
- if (!specifiers.isPseudoElementCueFunction())
- specifiers.prependTagSelector(tag, tagIsForNamespaceRule);
- return;
- }
-
- CSSParserSelector* lastShadowDescendant = &specifiers;
- CSSParserSelector* history = &specifiers;
- while (history->tagHistory()) {
- history = history->tagHistory();
- if (history->isCustomPseudoElement() || history->hasShadowDescendant())
- lastShadowDescendant = history;
- }
-
- if (lastShadowDescendant->tagHistory()) {
- if (tag != anyQName())
- lastShadowDescendant->tagHistory()->prependTagSelector(tag, tagIsForNamespaceRule);
- return;
- }
-
- // For shadow-ID pseudo-elements to be correctly matched, the ShadowDescendant combinator has to be used.
- // We therefore create a new Selector with that combinator here in any case, even if matching any (host) element in any namespace (i.e. '*').
- lastShadowDescendant->setTagHistory(std::make_unique<CSSParserSelector>(tag));
- lastShadowDescendant->setRelation(CSSSelector::ShadowDescendant);
-}
-
-std::unique_ptr<CSSParserSelector> CSSParser::rewriteSpecifiers(std::unique_ptr<CSSParserSelector> specifiers, std::unique_ptr<CSSParserSelector> newSpecifier)
-{
- if (newSpecifier->isCustomPseudoElement() || newSpecifier->isPseudoElementCueFunction()) {
- // Unknown pseudo element always goes at the top of selector chain.
- newSpecifier->appendTagHistory(CSSSelector::ShadowDescendant, WTFMove(specifiers));
- return newSpecifier;
- }
- if (specifiers->isCustomPseudoElement()) {
- // Specifiers for unknown pseudo element go right behind it in the chain.
- specifiers->insertTagHistory(CSSSelector::SubSelector, WTFMove(newSpecifier), CSSSelector::ShadowDescendant);
- return specifiers;
- }
- specifiers->appendTagHistory(CSSSelector::SubSelector, WTFMove(newSpecifier));
- return specifiers;
-}
-
-RefPtr<StyleRulePage> CSSParser::createPageRule(std::unique_ptr<CSSParserSelector> pageSelector)
-{
- // FIXME: Margin at-rules are ignored.
- m_allowImportRules = m_allowNamespaceDeclarations = false;
- if (pageSelector) {
- auto rule = StyleRulePage::create(createStyleProperties());
- Vector<std::unique_ptr<CSSParserSelector>> selectorVector;
- selectorVector.append(WTFMove(pageSelector));
- rule->parserAdoptSelectorVector(selectorVector);
- processAndAddNewRuleToSourceTreeIfNeeded();
- clearProperties();
- return WTFMove(rule);
- }
-
- popRuleData();
- clearProperties();
- return nullptr;
-}
-
-std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> CSSParser::createSelectorVector()
-{
- if (m_recycledSelectorVector) {
- m_recycledSelectorVector->shrink(0);
- return WTFMove(m_recycledSelectorVector);
- }
- return std::make_unique<Vector<std::unique_ptr<CSSParserSelector>>>();
-}
-
-void CSSParser::recycleSelectorVector(std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> vector)
-{
- if (vector && !m_recycledSelectorVector)
- m_recycledSelectorVector = WTFMove(vector);
-}
-
-RefPtr<StyleRuleRegion> CSSParser::createRegionRule(Vector<std::unique_ptr<CSSParserSelector>>* regionSelector, RuleList* rules)
-{
- if (!regionSelector || !rules) {
- popRuleData();
- return nullptr;
- }
-
- m_allowImportRules = m_allowNamespaceDeclarations = false;
-
- auto regionRule = StyleRuleRegion::create(regionSelector, *rules);
-
- if (isExtractingSourceData())
- addNewRuleToSourceTree(CSSRuleSourceData::createUnknown());
-
- return WTFMove(regionRule);
-}
-
-void CSSParser::createMarginAtRule(CSSSelector::MarginBoxType /* marginBox */)
-{
- // FIXME: Implement margin at-rule here, using:
- // - marginBox: margin box
- // - m_parsedProperties: properties at [m_numParsedPropertiesBeforeMarginBox, m_parsedProperties.size()] are for this at-rule.
- // Don't forget to also update the action for page symbol in CSSGrammar.y such that margin at-rule data is cleared if page_selector is invalid.
-
- endDeclarationsForMarginBox();
-}
-
-void CSSParser::startDeclarationsForMarginBox()
-{
- m_numParsedPropertiesBeforeMarginBox = m_parsedProperties.size();
-}
-
-void CSSParser::endDeclarationsForMarginBox()
-{
- rollbackLastProperties(m_parsedProperties.size() - m_numParsedPropertiesBeforeMarginBox);
- m_numParsedPropertiesBeforeMarginBox = invalidParsedPropertiesCount;
-}
-
-RefPtr<StyleKeyframe> CSSParser::createKeyframe(CSSParserValueList& keys)
-{
- // Create a key string from the passed keys
- StringBuilder keyString;
- for (unsigned i = 0; i < keys.size(); ++i) {
- // Just as per the comment below, we ignore keyframes with
- // invalid key values (plain numbers or unknown identifiers)
- // marked as CSSPrimitiveValue::CSS_UNKNOWN during parsing.
- if (keys.valueAt(i)->unit == CSSPrimitiveValue::CSS_UNKNOWN) {
- clearProperties();
- return nullptr;
- }
-
- ASSERT(keys.valueAt(i)->unit == CSSPrimitiveValue::CSS_NUMBER);
- float key = static_cast<float>(keys.valueAt(i)->fValue);
- if (key < 0 || key > 100) {
- // As per http://www.w3.org/TR/css3-animations/#keyframes,
- // "If a keyframe selector specifies negative percentage values
- // or values higher than 100%, then the keyframe will be ignored."
- clearProperties();
- return nullptr;
- }
- if (i != 0)
- keyString.append(',');
- keyString.appendNumber(key);
- keyString.append('%');
- }
-
- auto keyframe = StyleKeyframe::create(createStyleProperties());
- keyframe->setKeyText(keyString.toString());
-
- clearProperties();
-
- return WTFMove(keyframe);
-}
-
-void CSSParser::invalidBlockHit()
-{
- if (m_styleSheet && !m_hadSyntacticallyValidCSSRule)
- m_styleSheet->setHasSyntacticallyValidCSSHeader(false);
-}
-
-void CSSParser::updateLastSelectorLineAndPosition()
-{
- m_lastSelectorLineNumber = m_lineNumber;
-}
-
-void CSSParser::updateLastMediaLine(MediaQuerySet& media)
-{
- media.setLastLine(m_lineNumber);
-}
-
-template <typename CharacterType>
-static inline void fixUnparsedProperties(const CharacterType* characters, CSSRuleSourceData& ruleData)
-{
- auto& propertyData = ruleData.styleSourceData->propertyData;
- unsigned size = propertyData.size();
- if (!size)
- return;
-
- unsigned styleStart = ruleData.ruleBodyRange.start;
- auto* nextData = &propertyData[0];
- for (unsigned i = 0; i < size; ++i) {
- auto* currentData = nextData;
- nextData = i < size - 1 ? &propertyData[i + 1] : 0;
-
- if (currentData->parsedOk)
- continue;
- if (currentData->range.end > 0 && characters[styleStart + currentData->range.end - 1] == ';')
- continue;
-
- unsigned propertyEndInStyleSheet;
- if (!nextData)
- propertyEndInStyleSheet = ruleData.ruleBodyRange.end - 1;
- else
- propertyEndInStyleSheet = styleStart + nextData->range.start - 1;
-
- while (isHTMLSpace(characters[propertyEndInStyleSheet]))
- --propertyEndInStyleSheet;
-
- // propertyEndInStyleSheet points at the last property text character.
- unsigned newPropertyEnd = propertyEndInStyleSheet - styleStart + 1; // Exclusive of the last property text character.
- if (currentData->range.end != newPropertyEnd) {
- currentData->range.end = newPropertyEnd;
- unsigned valueStartInStyleSheet = styleStart + currentData->range.start + currentData->name.length();
- while (valueStartInStyleSheet < propertyEndInStyleSheet && characters[valueStartInStyleSheet] != ':')
- ++valueStartInStyleSheet;
- if (valueStartInStyleSheet < propertyEndInStyleSheet)
- ++valueStartInStyleSheet; // Shift past the ':'.
- while (valueStartInStyleSheet < propertyEndInStyleSheet && isHTMLSpace(characters[valueStartInStyleSheet]))
- ++valueStartInStyleSheet;
- // Need to exclude the trailing ';' from the property value.
- currentData->value = String(characters + valueStartInStyleSheet, propertyEndInStyleSheet - valueStartInStyleSheet + (characters[propertyEndInStyleSheet] == ';' ? 0 : 1));
- }
- }
-}
-
-void CSSParser::fixUnparsedPropertyRanges(CSSRuleSourceData& ruleData)
-{
- if (!ruleData.styleSourceData)
- return;
-
- if (is8BitSource()) {
- fixUnparsedProperties<LChar>(m_dataStart8.get() + m_parsedTextPrefixLength, ruleData);
- return;
- }
-
- fixUnparsedProperties<UChar>(m_dataStart16.get() + m_parsedTextPrefixLength, ruleData);
-}
-
-void CSSParser::markRuleHeaderStart(CSSRuleSourceData::Type ruleType)
-{
- if (!isExtractingSourceData())
- return;
-
- // Pop off data for a previous invalid rule.
- if (m_currentRuleData)
- m_currentRuleDataStack->removeLast();
-
- auto data = CSSRuleSourceData::create(ruleType);
- data->ruleHeaderRange.start = tokenStartOffset();
- m_currentRuleData = data.copyRef();
- m_currentRuleDataStack->append(WTFMove(data));
-}
-
-template <typename CharacterType>
-inline void CSSParser::setRuleHeaderEnd(const CharacterType* dataStart)
-{
- CharacterType* listEnd = tokenStart<CharacterType>();
- while (listEnd > dataStart + 1) {
- if (isHTMLSpace(*(listEnd - 1)))
- --listEnd;
- else
- break;
- }
-
- m_currentRuleDataStack->last()->ruleHeaderRange.end = listEnd - dataStart;
-}
-
-void CSSParser::markRuleHeaderEnd()
-{
- if (!isExtractingSourceData())
- return;
- ASSERT(!m_currentRuleDataStack->isEmpty());
-
- if (is8BitSource())
- setRuleHeaderEnd<LChar>(m_dataStart8.get());
- else
- setRuleHeaderEnd<UChar>(m_dataStart16.get());
-}
-
-void CSSParser::markSelectorStart()
-{
- if (!isExtractingSourceData() || m_nestedSelectorLevel)
- return;
- ASSERT(!m_selectorRange.end);
-
- m_selectorRange.start = tokenStartOffset();
-}
-
-void CSSParser::markSelectorEnd()
-{
- if (!isExtractingSourceData() || m_nestedSelectorLevel)
- return;
- ASSERT(!m_selectorRange.end);
- ASSERT(m_currentRuleDataStack->size());
-
- m_selectorRange.end = tokenStartOffset();
- m_currentRuleDataStack->last()->selectorRanges.append(m_selectorRange);
- m_selectorRange.start = 0;
- m_selectorRange.end = 0;
-}
-
-void CSSParser::markRuleBodyStart()
-{
- if (!isExtractingSourceData())
- return;
- m_currentRuleData = nullptr;
- unsigned offset = tokenStartOffset();
- if (tokenStartChar() == '{')
- ++offset; // Skip the rule body opening brace.
- ASSERT(!m_currentRuleDataStack->isEmpty());
- m_currentRuleDataStack->last()->ruleBodyRange.start = offset;
-}
-
-void CSSParser::markRuleBodyEnd()
-{
- // Precondition: (!isExtractingSourceData())
- unsigned offset = tokenStartOffset();
- ASSERT(!m_currentRuleDataStack->isEmpty());
- m_currentRuleDataStack->last()->ruleBodyRange.end = offset;
-}
-
-void CSSParser::markPropertyStart()
-{
- m_ignoreErrorsInDeclaration = false;
- if (!isExtractingSourceData())
- return;
- if (m_currentRuleDataStack->isEmpty() || !m_currentRuleDataStack->last()->styleSourceData)
- return;
-
- m_propertyRange.start = tokenStartOffset();
-}
-
-void CSSParser::markPropertyEnd(bool isImportantFound, bool isPropertyParsed)
-{
- if (!isExtractingSourceData())
- return;
- if (m_currentRuleDataStack->isEmpty() || !m_currentRuleDataStack->last()->styleSourceData)
- return;
-
- unsigned offset = tokenStartOffset();
- if (tokenStartChar() == ';') // Include semicolon into the property text.
- ++offset;
- m_propertyRange.end = offset;
- if (m_propertyRange.start != std::numeric_limits<unsigned>::max() && !m_currentRuleDataStack->isEmpty()) {
- // This stuff is only executed when the style data retrieval is requested by client.
- const unsigned start = m_propertyRange.start;
- const unsigned end = m_propertyRange.end;
- ASSERT_WITH_SECURITY_IMPLICATION(start < end);
- String propertyString;
- if (is8BitSource())
- propertyString = String(m_dataStart8.get() + start, end - start).stripWhiteSpace();
- else
- propertyString = String(m_dataStart16.get() + start, end - start).stripWhiteSpace();
- if (propertyString.endsWith(';'))
- propertyString = propertyString.left(propertyString.length() - 1);
- size_t colonIndex = propertyString.find(':');
- ASSERT(colonIndex != notFound);
-
- String name = propertyString.left(colonIndex).stripWhiteSpace();
- String value = propertyString.substring(colonIndex + 1, propertyString.length()).stripWhiteSpace();
- // The property range is relative to the declaration start offset.
- SourceRange& topRuleBodyRange = m_currentRuleDataStack->last()->ruleBodyRange;
- m_currentRuleDataStack->last()->styleSourceData->propertyData.append(
- CSSPropertySourceData(name, value, isImportantFound, isPropertyParsed, SourceRange(start - topRuleBodyRange.start, end - topRuleBodyRange.start)));
- }
- resetPropertyRange();
-}
-
-#if ENABLE(CSS_DEVICE_ADAPTATION)
-Ref<StyleRuleViewport> CSSParser::createViewportRule()
-{
- m_allowImportRules = m_allowNamespaceDeclarations = false;
-
- auto rule = StyleRuleViewport::create(createStyleProperties());
- clearProperties();
-
- processAndAddNewRuleToSourceTreeIfNeeded();
-
- return rule;
-}
-
-bool CSSParser::parseViewportProperty(CSSPropertyID propId, bool important)
-{
- if (!m_valueList->current())
- return false;
-
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
-
- CSSValueID id = valueWithCalculation.value().id;
- bool validPrimitive = false;
-
- switch (propId) {
- case CSSPropertyMinWidth: // auto | device-width | device-height | <length> | <percentage>
- case CSSPropertyMaxWidth:
- case CSSPropertyMinHeight:
- case CSSPropertyMaxHeight:
- if (id == CSSValueAuto || id == CSSValueDeviceWidth || id == CSSValueDeviceHeight)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg));
- break;
- case CSSPropertyWidth: // shorthand
- return parseViewportShorthand(propId, CSSPropertyMinWidth, CSSPropertyMaxWidth, important);
- case CSSPropertyHeight:
- return parseViewportShorthand(propId, CSSPropertyMinHeight, CSSPropertyMaxHeight, important);
- case CSSPropertyMinZoom: // auto | <number> | <percentage>
- case CSSPropertyMaxZoom:
- case CSSPropertyZoom:
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validateUnit(valueWithCalculation, FNumber | FPercent | FNonNeg));
- break;
- case CSSPropertyUserZoom: // zoom | fixed
- if (id == CSSValueZoom || id == CSSValueFixed)
- validPrimitive = true;
- break;
- case CSSPropertyOrientation: // auto | portrait | landscape
- if (id == CSSValueAuto || id == CSSValuePortrait || id == CSSValueLandscape)
- validPrimitive = true;
- default:
- break;
- }
-
- RefPtr<CSSValue> parsedValue;
- if (validPrimitive) {
- parsedValue = parseValidPrimitive(id, valueWithCalculation);
- m_valueList->next();
- }
-
- if (!parsedValue)
- return false;
-
- if (m_valueList->current() && !inShorthand())
- return false;
-
- addProperty(propId, parsedValue.releaseNonNull(), important);
- return true;
-}
-
-bool CSSParser::parseViewportShorthand(CSSPropertyID propId, CSSPropertyID first, CSSPropertyID second, bool important)
-{
- unsigned numValues = m_valueList->size();
-
- if (numValues > 2)
- return false;
-
- ShorthandScope scope(this, propId);
-
- if (!parseViewportProperty(first, important))
- return false;
-
- // If just one value is supplied, the second value
- // is implicitly initialized with the first value.
- if (numValues == 1)
- m_valueList->previous();
-
- return parseViewportProperty(second, important);
-}
-#endif
-
-template <typename CharacterType>
-static CSSPropertyID cssPropertyID(const CharacterType* propertyName, unsigned length)
-{
- char buffer[maxCSSPropertyNameLength + 1 + 1]; // 1 to turn "apple"/"khtml" into "webkit", 1 for null character
-
- for (unsigned i = 0; i != length; ++i) {
- CharacterType c = propertyName[i];
- if (c == 0 || c >= 0x7F)
- return CSSPropertyInvalid; // illegal character
- buffer[i] = toASCIILower(c);
- }
- buffer[length] = '\0';
-
- const char* name = buffer;
- if (buffer[0] == '-') {
-#if ENABLE(LEGACY_CSS_VENDOR_PREFIXES)
- // If the prefix is -apple- or -khtml-, change it to -webkit-.
- // This makes the string one character longer.
- if (RuntimeEnabledFeatures::sharedFeatures().legacyCSSVendorPrefixesEnabled()
- && (hasPrefix(buffer, length, "-apple-") || hasPrefix(buffer, length, "-khtml-"))) {
- memmove(buffer + 7, buffer + 6, length + 1 - 6);
- memcpy(buffer, "-webkit", 7);
- ++length;
- }
-#endif
-#if PLATFORM(IOS)
- cssPropertyNameIOSAliasing(buffer, name, length);
-#endif
- }
-
- const Property* hashTableEntry = findProperty(name, length);
- return hashTableEntry ? static_cast<CSSPropertyID>(hashTableEntry->id) : CSSPropertyInvalid;
-}
-
-CSSPropertyID cssPropertyID(const String& string)
-{
- unsigned length = string.length();
-
- if (!length)
- return CSSPropertyInvalid;
- if (length > maxCSSPropertyNameLength)
- return CSSPropertyInvalid;
-
- return string.is8Bit() ? cssPropertyID(string.characters8(), length) : cssPropertyID(string.characters16(), length);
-}
-
-CSSPropertyID cssPropertyID(const CSSParserString& string)
-{
- unsigned length = string.length();
-
- if (!length)
- return CSSPropertyInvalid;
- if (length > maxCSSPropertyNameLength)
- return CSSPropertyInvalid;
-
- return string.is8Bit() ? cssPropertyID(string.characters8(), length) : cssPropertyID(string.characters16(), length);
-}
-
-#if PLATFORM(IOS)
-void cssPropertyNameIOSAliasing(const char* propertyName, const char*& propertyNameAlias, unsigned& newLength)
-{
- if (!strcmp(propertyName, "-webkit-hyphenate-locale")) {
- // Worked in iOS 4.2.
- static const char webkitLocale[] = "-webkit-locale";
- propertyNameAlias = webkitLocale;
- newLength = strlen(webkitLocale);
- }
-}
-#endif
-
-static bool isAppleLegacyCssValueKeyword(const char* valueKeyword, unsigned length)
-{
- static const char applePrefix[] = "-apple-";
- static const char appleSystemPrefix[] = "-apple-system";
- static const char* appleWirelessPlaybackTargetActive = getValueName(CSSValueAppleWirelessPlaybackTargetActive);
-
- return hasPrefix(valueKeyword, length, applePrefix)
- && !hasPrefix(valueKeyword, length, appleSystemPrefix)
- && !WTF::equal(reinterpret_cast<const LChar*>(valueKeyword), reinterpret_cast<const LChar*>(appleWirelessPlaybackTargetActive), length);
-}
-
-template <typename CharacterType>
-static CSSValueID cssValueKeywordID(const CharacterType* valueKeyword, unsigned length)
-{
- char buffer[maxCSSValueKeywordLength + 1 + 1]; // 1 to turn "apple"/"khtml" into "webkit", 1 for null character
-
- for (unsigned i = 0; i != length; ++i) {
- CharacterType c = valueKeyword[i];
- if (c == 0 || c >= 0x7F)
- return CSSValueInvalid; // illegal keyword.
- buffer[i] = WTF::toASCIILower(c);
- }
- buffer[length] = '\0';
-
- if (buffer[0] == '-') {
- // If the prefix is -apple- or -khtml-, change it to -webkit-.
- // This makes the string one character longer.
- // On iOS we don't want to change values starting with -apple-system to -webkit-system.
- // FIXME: Remove this mangling without breaking the web.
- if (isAppleLegacyCssValueKeyword(buffer, length) || hasPrefix(buffer, length, "-khtml-")) {
- memmove(buffer + 7, buffer + 6, length + 1 - 6);
- memcpy(buffer, "-webkit", 7);
- ++length;
- }
- }
-
- const Value* hashTableEntry = findValue(buffer, length);
- return hashTableEntry ? static_cast<CSSValueID>(hashTableEntry->id) : CSSValueInvalid;
-}
-
-CSSValueID cssValueKeywordID(const CSSParserString& string)
-{
- unsigned length = string.length();
- if (!length)
- return CSSValueInvalid;
- if (length > maxCSSValueKeywordLength)
- return CSSValueInvalid;
-
- return string.is8Bit() ? cssValueKeywordID(string.characters8(), length) : cssValueKeywordID(string.characters16(), length);
-}
-
-template <typename CharacterType>
-static inline bool isCSSTokenizerIdentifier(const CharacterType* characters, unsigned length)
-{
- const CharacterType* end = characters + length;
-
- // -?
- if (characters != end && characters[0] == '-')
- ++characters;
-
- // {nmstart}
- if (characters == end || !(characters[0] == '_' || characters[0] >= 128 || isASCIIAlpha(characters[0])))
- return false;
- ++characters;
-
- // {nmchar}*
- for (; characters != end; ++characters) {
- if (!(characters[0] == '_' || characters[0] == '-' || characters[0] >= 128 || isASCIIAlphanumeric(characters[0])))
- return false;
- }
-
- return true;
-}
-
-// "ident" from the CSS tokenizer, minus backslash-escape sequences
-static bool isCSSTokenizerIdentifier(const String& string)
-{
- unsigned length = string.length();
-
- if (!length)
- return false;
-
- if (string.is8Bit())
- return isCSSTokenizerIdentifier(string.characters8(), length);
- return isCSSTokenizerIdentifier(string.characters16(), length);
-}
-
-template <typename CharacterType>
-static inline bool isCSSTokenizerURL(const CharacterType* characters, unsigned length)
-{
- const CharacterType* end = characters + length;
-
- for (; characters != end; ++characters) {
- CharacterType c = characters[0];
- switch (c) {
- case '!':
- case '#':
- case '$':
- case '%':
- case '&':
- break;
- default:
- if (c < '*')
- return false;
- if (c <= '~')
- break;
- if (c < 128)
- return false;
- }
- }
-
- return true;
-}
-
-// "url" from the CSS tokenizer, minus backslash-escape sequences
-static bool isCSSTokenizerURL(const String& string)
-{
- unsigned length = string.length();
-
- if (!length)
- return true;
-
- if (string.is8Bit())
- return isCSSTokenizerURL(string.characters8(), length);
- return isCSSTokenizerURL(string.characters16(), length);
-}
-
-
-template <typename CharacterType>
-static inline String quoteCSSStringInternal(const CharacterType* characters, unsigned length)
-{
- // For efficiency, we first pre-calculate the length of the quoted string, then we build the actual one.
- // Please see below for the actual logic.
- unsigned quotedStringSize = 2; // Two quotes surrounding the entire string.
- bool afterEscape = false;
- for (unsigned i = 0; i < length; ++i) {
- CharacterType ch = characters[i];
- if (ch == '\\' || ch == '\'') {
- quotedStringSize += 2;
- afterEscape = false;
- } else if (ch < 0x20 || ch == 0x7F) {
- quotedStringSize += 2 + (ch >= 0x10);
- afterEscape = true;
- } else {
- quotedStringSize += 1 + (afterEscape && (isASCIIHexDigit(ch) || ch == ' '));
- afterEscape = false;
- }
- }
-
- StringBuffer<CharacterType> buffer(quotedStringSize);
- unsigned index = 0;
- buffer[index++] = '\'';
- afterEscape = false;
- for (unsigned i = 0; i < length; ++i) {
- CharacterType ch = characters[i];
- if (ch == '\\' || ch == '\'') {
- buffer[index++] = '\\';
- buffer[index++] = ch;
- afterEscape = false;
- } else if (ch < 0x20 || ch == 0x7F) { // Control characters.
- buffer[index++] = '\\';
- placeByteAsHexCompressIfPossible(ch, buffer, index, Lowercase);
- afterEscape = true;
- } else {
- // Space character may be required to separate backslash-escape sequence and normal characters.
- if (afterEscape && (isASCIIHexDigit(ch) || ch == ' '))
- buffer[index++] = ' ';
- buffer[index++] = ch;
- afterEscape = false;
- }
- }
- buffer[index++] = '\'';
-
- ASSERT(quotedStringSize == index);
- return String::adopt(buffer);
-}
-
-// We use single quotes for now because markup.cpp uses double quotes.
-String quoteCSSString(const String& string)
-{
- // This function expands each character to at most 3 characters ('\u0010' -> '\' '1' '0') as well as adds
- // 2 quote characters (before and after). Make sure the resulting size (3 * length + 2) will not overflow unsigned.
-
- unsigned length = string.length();
-
- if (!length)
- return ASCIILiteral("\'\'");
-
- if (length > std::numeric_limits<unsigned>::max() / 3 - 2)
- return emptyString();
-
- if (string.is8Bit())
- return quoteCSSStringInternal(string.characters8(), length);
- return quoteCSSStringInternal(string.characters16(), length);
-}
-
-String quoteCSSStringIfNeeded(const String& string)
-{
- return isCSSTokenizerIdentifier(string) ? string : quoteCSSString(string);
-}
-
-String quoteCSSURLIfNeeded(const String& string)
-{
- return isCSSTokenizerURL(string) ? string : quoteCSSString(string);
-}
-
-bool isValidNthToken(const CSSParserString& token)
-{
- // The tokenizer checks for the construct of an+b.
- // However, since the {ident} rule precedes the {nth} rule, some of those
- // tokens are identified as string literal. Furthermore we need to accept
- // "odd" and "even" which does not match to an+b.
- return equalLettersIgnoringASCIICase(token, "odd")
- || equalLettersIgnoringASCIICase(token, "even")
- || equalLettersIgnoringASCIICase(token, "n")
- || equalLettersIgnoringASCIICase(token, "-n");
-}
-
-}
</del></span></pre></div>
<a id="trunkSourceWebCorecssCSSParserh"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WebCore/css/CSSParser.h (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/CSSParser.h 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/css/CSSParser.h 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1,800 +0,0 @@
</span><del>-/*
- * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
- * Copyright (C) 2004-2010, 2015 Apple Inc. All rights reserved.
- * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
- * Copyright (C) 2009 - 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#pragma once
-
-#include "CSSCalculationValue.h"
-#include "CSSGradientValue.h"
-#include "CSSParserMode.h"
-#include "CSSParserValues.h"
-#include "CSSProperty.h"
-#include "CSSPropertyNames.h"
-#include "CSSPropertySourceData.h"
-#include "CSSValueKeywords.h"
-#include "Color.h"
-#include "MediaQuery.h"
-#include "SourceSizeList.h"
-#include "StyleRuleImport.h"
-#include "WebKitCSSFilterValue.h"
-#include <memory>
-#include <wtf/HashMap.h>
-#include <wtf/Vector.h>
-#include <wtf/text/AtomicString.h>
-#include <wtf/text/TextPosition.h>
-
-#if ENABLE(CSS_GRID_LAYOUT)
-#include "GridArea.h"
-#endif
-
-namespace WebCore {
-
-class AnimationParseContext;
-class CSSBorderImageSliceValue;
-class CSSContentDistributionValue;
-class CSSPrimitiveValue;
-class CSSSelectorList;
-class CSSValue;
-class CSSValueList;
-class CSSBasicShape;
-class CSSBasicShapeCircle;
-class CSSBasicShapeEllipse;
-class CSSBasicShapeInset;
-class CSSBasicShapePath;
-class CSSBasicShapePolygon;
-class CSSGridLineNamesValue;
-class CSSImageSetValue;
-class CSSVariableDependentValue;
-class Document;
-class Element;
-class ImmutableStyleProperties;
-class MediaQueryExpression;
-class MediaQuerySet;
-class MutableStyleProperties;
-class SVGColor;
-class SVGPaint;
-class StyleKeyframe;
-class StylePropertyShorthand;
-class StyleRule;
-class StyleRuleBase;
-class StyleRuleFontFace;
-class StyleRuleKeyframes;
-class StyleRuleMedia;
-class StyleRulePage;
-class StyleRuleRegion;
-class StyleRuleSupports;
-class StyleRuleViewport;
-class StyleKeyframe;
-class StyleSheetContents;
-class StyledElement;
-class WebKitCSSTransformValue;
-
-class CSSParser {
- friend inline int cssyylex(void*, CSSParser*);
-
-public:
- struct Location;
- enum SyntaxErrorType {
- PropertyDeclarationError,
- GeneralSyntaxError
- };
-
- enum class ParseResult {
- Changed,
- Unchanged,
- Error
- };
-
- class ValueWithCalculation {
- public:
- explicit ValueWithCalculation(CSSParserValue& value)
- : m_value(value)
- { }
-
- CSSParserValue& value() const { return m_value; }
- operator CSSParserValue&() { return m_value; }
-
- RefPtr<CSSCalcValue> calculation() const { return m_calculation; }
- void setCalculation(RefPtr<CSSCalcValue>&& calculation)
- {
- ASSERT(isCalculation(m_value));
- m_calculation = calculation;
- }
-
- private:
- CSSParserValue& m_value;
- RefPtr<CSSCalcValue> m_calculation;
- };
-
- WEBCORE_EXPORT CSSParser(const CSSParserContext&);
- WEBCORE_EXPORT ~CSSParser();
-
- void parseSheet(StyleSheetContents*, const String&, const TextPosition&, RuleSourceDataList*, bool logErrors);
- RefPtr<StyleRuleBase> parseRule(StyleSheetContents*, const String&);
- RefPtr<StyleKeyframe> parseKeyframeRule(StyleSheetContents*, const String&);
- bool parseSupportsCondition(const String&);
-
- static ParseResult parseValue(MutableStyleProperties&, CSSPropertyID, const String&, bool important, CSSParserMode, StyleSheetContents*);
- static ParseResult parseCustomPropertyValue(MutableStyleProperties&, const AtomicString& propertyName, const String&, bool important, CSSParserMode, StyleSheetContents* contextStyleSheet);
-
- static bool parseColor(RGBA32& color, const String&, bool strict = false);
- static bool isValidSystemColorValue(CSSValueID);
- static bool parseSystemColor(RGBA32& color, const String&, Document*);
- static RefPtr<CSSValueList> parseFontFaceValue(const AtomicString&);
- RefPtr<CSSPrimitiveValue> parseValidPrimitive(CSSValueID ident, ValueWithCalculation&);
-
- WEBCORE_EXPORT bool parseDeclaration(MutableStyleProperties&, const String&, RefPtr<CSSRuleSourceData>&&, StyleSheetContents* contextStyleSheet);
- static Ref<ImmutableStyleProperties> parseInlineStyleDeclaration(const String&, Element*);
- std::unique_ptr<MediaQuery> parseMediaQuery(const String&);
-
- void addPropertyWithPrefixingVariant(CSSPropertyID, RefPtr<CSSValue>&&, bool important, bool implicit = false);
- void addProperty(CSSPropertyID, RefPtr<CSSValue>&&, bool important, bool implicit = false);
- void rollbackLastProperties(int num);
- bool hasProperties() const { return !m_parsedProperties.isEmpty(); }
- void addExpandedPropertyForValue(CSSPropertyID propId, Ref<CSSValue>&&, bool);
-
- bool parseValue(CSSPropertyID, bool important);
- bool parseShorthand(CSSPropertyID, const StylePropertyShorthand&, bool important);
- bool parse4Values(CSSPropertyID, const CSSPropertyID* properties, bool important);
- bool parseContent(CSSPropertyID, bool important);
- bool parseQuotes(CSSPropertyID, bool important);
- bool parseAlt(CSSPropertyID, bool important);
-
- bool parseCustomPropertyDeclaration(bool important, CSSValueID);
-
- RefPtr<CSSPrimitiveValue> parseAttr(CSSParserValueList& args);
-
- RefPtr<CSSPrimitiveValue> parseBackgroundColor();
-
- struct SourceSize {
- MediaQueryExpression expression;
- Ref<CSSValue> length;
-
- SourceSize(SourceSize&&);
- SourceSize(MediaQueryExpression&&, Ref<CSSValue>&&);
- };
- Vector<SourceSize> parseSizesAttribute(StringView);
- Optional<SourceSize> sourceSize(MediaQueryExpression&&, CSSParserValue&);
-
- bool parseFillImage(CSSParserValueList&, RefPtr<CSSValue>&);
-
- enum FillPositionFlag { InvalidFillPosition = 0, AmbiguousFillPosition = 1, XFillPosition = 2, YFillPosition = 4 };
- enum FillPositionParsingMode { ResolveValuesAsPercent = 0, ResolveValuesAsKeyword = 1 };
- RefPtr<CSSPrimitiveValue> parseFillPositionComponent(CSSParserValueList&, unsigned& cumulativeFlags, FillPositionFlag& individualFlag, FillPositionParsingMode = ResolveValuesAsPercent);
- RefPtr<CSSPrimitiveValue> parsePositionX(CSSParserValueList&);
- RefPtr<CSSPrimitiveValue> parsePositionY(CSSParserValueList&);
- void parse2ValuesFillPosition(CSSParserValueList&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&);
- bool isPotentialPositionValue(CSSParserValue&);
- void parseFillPosition(CSSParserValueList&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&);
- void parse3ValuesFillPosition(CSSParserValueList&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&, Ref<CSSPrimitiveValue>&&, Ref<CSSPrimitiveValue>&&);
- void parse4ValuesFillPosition(CSSParserValueList&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&, Ref<CSSPrimitiveValue>&&, Ref<CSSPrimitiveValue>&&);
-
- void parseFillRepeat(RefPtr<CSSValue>&, RefPtr<CSSValue>&);
- RefPtr<CSSPrimitiveValue> parseFillSize(CSSPropertyID, bool &allowComma);
-
- bool parseFillProperty(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, RefPtr<CSSValue>&, RefPtr<CSSValue>&);
- bool parseFillShorthand(CSSPropertyID, const CSSPropertyID* properties, int numProperties, bool important);
-
- void addFillValue(RefPtr<CSSValue>& lval, Ref<CSSValue>&& rval);
- void addAnimationValue(RefPtr<CSSValue>& lval, Ref<CSSValue>&& rval);
-
- RefPtr<CSSPrimitiveValue> parseAnimationDelay();
- RefPtr<CSSPrimitiveValue> parseAnimationDirection();
- RefPtr<CSSPrimitiveValue> parseAnimationDuration();
- RefPtr<CSSPrimitiveValue> parseAnimationFillMode();
- RefPtr<CSSPrimitiveValue> parseAnimationIterationCount();
- RefPtr<CSSPrimitiveValue> parseAnimationName();
- RefPtr<CSSPrimitiveValue> parseAnimationPlayState();
- RefPtr<CSSPrimitiveValue> parseAnimationProperty(AnimationParseContext&);
- RefPtr<CSSValue> parseAnimationTimingFunction();
-#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
- RefPtr<CSSValue> parseAnimationTrigger();
-#endif
- static Vector<double> parseKeyframeSelector(const String&);
-
- bool parseTransformOriginShorthand(RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSValue>&);
- Optional<double> parseCubicBezierTimingFunctionValue(CSSParserValueList&);
- Optional<double> parseSpringTimingFunctionValue(CSSParserValueList&);
- bool parseAnimationProperty(CSSPropertyID, RefPtr<CSSValue>&, AnimationParseContext&);
- bool parseTransitionShorthand(CSSPropertyID, bool important);
- bool parseAnimationShorthand(CSSPropertyID, bool important);
-
- bool isSpringTimingFunctionEnabled() const;
-
- RefPtr<CSSPrimitiveValue> parseColumnWidth();
- RefPtr<CSSPrimitiveValue> parseColumnCount();
- bool parseColumnsShorthand(bool important);
-
-#if ENABLE(IOS_TEXT_AUTOSIZING)
- bool isTextAutosizingEnabled() const;
-#endif
-
-#if ENABLE(CSS_GRID_LAYOUT)
- bool isCSSGridLayoutEnabled() const;
- RefPtr<CSSValue> parseGridPosition();
- bool parseGridItemPositionShorthand(CSSPropertyID, bool important);
- enum TrackListType { GridTemplate, GridTemplateNoRepeat, GridAuto };
- RefPtr<CSSValue> parseGridTemplateColumns(TrackListType = GridTemplate);
- bool parseGridTemplateRowsAndAreasAndColumns(bool important);
- bool parseGridTemplateShorthand(bool important);
- bool parseGridShorthand(bool important);
- bool parseGridAreaShorthand(bool important);
- bool parseGridGapShorthand(bool important);
- bool parseSingleGridAreaLonghand(RefPtr<CSSValue>&);
- RefPtr<CSSValue> parseGridTrackList(TrackListType);
- bool parseGridTrackRepeatFunction(CSSValueList&, bool& isAutoRepeat, bool& allTracksAreFixedSized);
- RefPtr<CSSValue> parseGridTrackSize(CSSParserValueList& inputList);
- RefPtr<CSSPrimitiveValue> parseGridBreadth(CSSParserValue&);
- bool parseGridTemplateAreasRow(NamedGridAreaMap&, const unsigned, unsigned&);
- RefPtr<CSSValue> parseGridTemplateAreas();
- bool parseGridLineNames(CSSParserValueList&, CSSValueList&, CSSGridLineNamesValue* = nullptr);
- RefPtr<CSSValue> parseGridAutoFlow(CSSParserValueList&);
-#endif
-
- bool parseDashboardRegions(CSSPropertyID, bool important);
-
- bool parseClipShape(CSSPropertyID, bool important);
-
- bool parseLegacyPosition(CSSPropertyID, bool important);
- bool parseItemPositionOverflowPosition(CSSPropertyID, bool important);
- RefPtr<CSSContentDistributionValue> parseContentDistributionOverflowPosition();
-
-#if ENABLE(CSS_SHAPES)
- RefPtr<CSSValue> parseShapeProperty(CSSPropertyID);
-#endif
-
- RefPtr<CSSValueList> parseBasicShapeAndOrBox(CSSPropertyID propId);
- RefPtr<CSSPrimitiveValue> parseBasicShape();
- RefPtr<CSSPrimitiveValue> parseShapeRadius(CSSParserValue&);
- RefPtr<CSSBasicShapeCircle> parseBasicShapeCircle(CSSParserValueList&);
- RefPtr<CSSBasicShapeEllipse> parseBasicShapeEllipse(CSSParserValueList&);
- RefPtr<CSSBasicShapePolygon> parseBasicShapePolygon(CSSParserValueList&);
- RefPtr<CSSBasicShapePath> parseBasicShapePath(CSSParserValueList&);
- RefPtr<CSSBasicShapeInset> parseBasicShapeInset(CSSParserValueList&);
-
- bool parseFont(bool important);
- void parseSystemFont(bool important);
- RefPtr<CSSValueList> parseFontFamily();
-
- bool parseCounter(CSSPropertyID, int defaultValue, bool important);
- RefPtr<CSSPrimitiveValue> parseCounterContent(CSSParserValueList& args, bool counters);
-
- bool parseColorParameters(CSSParserValue&, int* colorValues, bool parseAlpha);
- bool parseHSLParameters(CSSParserValue&, double* colorValues, bool parseAlpha);
- RefPtr<CSSPrimitiveValue> parseColor(CSSParserValue* = nullptr);
- bool parseColorFromValue(CSSParserValue&, RGBA32&);
- void parseSelector(const String&, CSSSelectorList&);
-
- template<typename StringType>
- static bool fastParseColor(RGBA32&, const StringType&, bool strict);
-
- bool parseLineHeight(bool important);
- bool parseFontSize(bool important);
- bool parseFontWeight(bool important);
- bool parseFontSynthesis(bool important);
- bool parseFontFaceSrc();
- bool parseFontFaceUnicodeRange();
-
- bool parseSVGValue(CSSPropertyID propId, bool important);
- RefPtr<SVGPaint> parseSVGPaint();
- RefPtr<SVGColor> parseSVGColor();
- RefPtr<CSSValueList> parseSVGStrokeDasharray();
- RefPtr<CSSValueList> parsePaintOrder();
-
- // CSS3 Parsing Routines (for properties specific to CSS3)
- RefPtr<CSSValueList> parseShadow(CSSParserValueList&, CSSPropertyID);
- bool parseBorderImage(CSSPropertyID, RefPtr<CSSValue>&, bool important = false);
- bool parseBorderImageRepeat(RefPtr<CSSValue>&);
- bool parseBorderImageSlice(CSSPropertyID, RefPtr<CSSBorderImageSliceValue>&);
- bool parseBorderImageWidth(RefPtr<CSSPrimitiveValue>&);
- bool parseBorderImageOutset(RefPtr<CSSPrimitiveValue>&);
- bool parseBorderRadius(CSSPropertyID, bool important);
-
- bool parseAspectRatio(bool important);
-
- bool parseReflect(CSSPropertyID, bool important);
-
- bool parseFlex(CSSParserValueList& args, bool important);
-
- // Image generators
- bool parseCanvas(CSSParserValueList&, RefPtr<CSSValue>&);
- bool parseNamedImage(CSSParserValueList&, RefPtr<CSSValue>&);
-
- bool parseDeprecatedGradient(CSSParserValueList&, RefPtr<CSSValue>&);
- bool parseDeprecatedLinearGradient(CSSParserValueList&, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
- bool parseDeprecatedRadialGradient(CSSParserValueList&, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
- bool parseLinearGradient(CSSParserValueList&, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
- bool parseRadialGradient(CSSParserValueList&, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
- bool parseGradientColorStops(CSSParserValueList&, CSSGradientValue&, bool expectComma);
-
- bool parseCrossfade(CSSParserValueList&, RefPtr<CSSValue>&, bool prefixed);
-
-#if ENABLE(CSS_IMAGE_RESOLUTION)
- RefPtr<CSSValueList> parseImageResolution();
-#endif
-
- RefPtr<CSSImageSetValue> parseImageSet();
-
- bool parseFilterImage(CSSParserValueList&, RefPtr<CSSValue>&);
-
- bool parseFilter(CSSParserValueList&, RefPtr<CSSValueList>&);
- RefPtr<WebKitCSSFilterValue> parseBuiltinFilterArguments(CSSParserValueList&, WebKitCSSFilterValue::FilterOperationType);
-
- RefPtr<CSSValue> parseClipPath();
-
- static bool isBlendMode(CSSValueID);
- static bool isCompositeOperator(CSSValueID);
-
- RefPtr<CSSValueList> parseTransform();
- RefPtr<WebKitCSSTransformValue> parseTransformValue(CSSParserValue&);
- bool parseTransformOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, CSSPropertyID& propId3, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSValue>&);
- bool parsePerspectiveOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&);
-
- bool parseTextEmphasisStyle(bool important);
- bool parseTextEmphasisPosition(bool important);
-
- void addTextDecorationProperty(CSSPropertyID, RefPtr<CSSValue>&&, bool important);
- bool parseTextDecoration(CSSPropertyID propId, bool important);
- bool parseTextDecorationSkip(bool important);
- bool parseTextUnderlinePosition(bool important);
-
- RefPtr<CSSValueList> parseTextIndent();
-
- bool parseHangingPunctuation(bool important);
-
- bool parseLineBoxContain(bool important);
- RefPtr<CSSCalcValue> parseCalculation(CSSParserValue&, CalculationPermittedValueRange);
-
- bool parseFontFeatureTag(CSSValueList&);
- bool parseFontFeatureSettings(bool important);
-
- bool parseFlowThread(CSSPropertyID, bool important);
- bool parseRegionThread(CSSPropertyID, bool important);
-
- bool parseFontVariantLigatures(bool important, bool unknownIsFailure, bool implicit);
- bool parseFontVariantNumeric(bool important, bool unknownIsFailure, bool implicit);
- bool parseFontVariantEastAsian(bool important, bool unknownIsFailure, bool implicit);
- bool parseFontVariant(bool important);
-
- bool parseWillChange(bool important);
-
- // Faster than doing a new/delete each time since it keeps one vector.
- std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> createSelectorVector();
- void recycleSelectorVector(std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>>);
-
- RefPtr<StyleRuleImport> createImportRule(const CSSParserString&, RefPtr<MediaQuerySet>&&);
- RefPtr<StyleKeyframe> createKeyframe(CSSParserValueList&);
- Ref<StyleRuleKeyframes> createKeyframesRule(const String&, std::unique_ptr<Vector<RefPtr<StyleKeyframe>>>);
-
- typedef Vector<RefPtr<StyleRuleBase>> RuleList;
- Ref<StyleRuleMedia> createMediaRule(RefPtr<MediaQuerySet>&&, RuleList*);
- Ref<StyleRuleMedia> createEmptyMediaRule(RuleList*);
- RefPtr<StyleRule> createStyleRule(Vector<std::unique_ptr<CSSParserSelector>>* selectors);
- RefPtr<StyleRuleFontFace> createFontFaceRule();
- RefPtr<StyleRulePage> createPageRule(std::unique_ptr<CSSParserSelector> pageSelector);
- RefPtr<StyleRuleRegion> createRegionRule(Vector<std::unique_ptr<CSSParserSelector>>* regionSelector, RuleList* rules);
- void createMarginAtRule(CSSSelector::MarginBoxType);
- Ref<StyleRuleSupports> createSupportsRule(bool conditionIsSupported, RuleList*);
- void markSupportsRuleHeaderStart();
- void markSupportsRuleHeaderEnd();
- Ref<CSSRuleSourceData> popSupportsRuleData();
-
- void startDeclarationsForMarginBox();
- void endDeclarationsForMarginBox();
-
- void addNamespace(const AtomicString& prefix, const AtomicString& uri);
- QualifiedName determineNameInNamespace(const AtomicString& prefix, const AtomicString& localName);
-
- void rewriteSpecifiersWithElementName(const AtomicString& namespacePrefix, const AtomicString& elementName, CSSParserSelector&);
- void rewriteSpecifiersWithElementName(const QualifiedName& tagName, CSSParserSelector&, bool isNamespacePlaceholder = false);
- void rewriteSpecifiersWithNamespaceIfNeeded(CSSParserSelector&);
- std::unique_ptr<CSSParserSelector> rewriteSpecifiers(std::unique_ptr<CSSParserSelector>, std::unique_ptr<CSSParserSelector>);
-
- void invalidBlockHit();
-
- void updateLastSelectorLineAndPosition();
- void updateLastMediaLine(MediaQuerySet&);
-
- void clearProperties();
-
- Ref<ImmutableStyleProperties> createStyleProperties();
-
- static const unsigned invalidParsedPropertiesCount;
-
- CSSParserContext m_context;
-
- bool m_important { false };
- CSSPropertyID m_id { CSSPropertyInvalid };
- AtomicString m_customPropertyName;
- StyleSheetContents* m_styleSheet { nullptr };
- RefPtr<StyleRuleBase> m_rule;
- RefPtr<StyleKeyframe> m_keyframe;
- std::unique_ptr<MediaQuery> m_mediaQuery;
- std::unique_ptr<Vector<SourceSize>> m_sourceSizeList;
- std::unique_ptr<CSSParserValueList> m_valueList;
- bool m_supportsCondition { false };
-
- ParsedPropertyVector m_parsedProperties;
- CSSSelectorList* m_selectorListForParseSelector { nullptr };
-
- unsigned m_numParsedPropertiesBeforeMarginBox { invalidParsedPropertiesCount };
-
- int m_inParseShorthand { 0 };
- CSSPropertyID m_currentShorthand { CSSPropertyInvalid };
- bool m_implicitShorthand { false };
-
- bool m_hadSyntacticallyValidCSSRule { false };
- bool m_logErrors { false };
- bool m_ignoreErrorsInDeclaration { false };
-
- AtomicString m_defaultNamespace { starAtom };
-
- // tokenizer methods and data
- size_t m_parsedTextPrefixLength { 0 };
- unsigned m_nestedSelectorLevel { 0 };
- SourceRange m_selectorRange;
- SourceRange m_propertyRange { std::numeric_limits<unsigned>::max(), std::numeric_limits<unsigned>::max() };
- std::unique_ptr<RuleSourceDataList> m_currentRuleDataStack;
- RefPtr<CSSRuleSourceData> m_currentRuleData;
- RuleSourceDataList* m_ruleSourceDataResult { nullptr };
-
- void fixUnparsedPropertyRanges(CSSRuleSourceData&);
- void markRuleHeaderStart(CSSRuleSourceData::Type);
- void markRuleHeaderEnd();
-
- void startNestedSelectorList() { ++m_nestedSelectorLevel; }
- void endNestedSelectorList() { --m_nestedSelectorLevel; }
- void markSelectorStart();
- void markSelectorEnd();
-
- void markRuleBodyStart();
- void markRuleBodyEnd();
- void markPropertyStart();
- void markPropertyEnd(bool isImportantFound, bool isPropertyParsed);
- void processAndAddNewRuleToSourceTreeIfNeeded();
- void addNewRuleToSourceTree(Ref<CSSRuleSourceData>&&);
- RefPtr<CSSRuleSourceData> popRuleData();
- void resetPropertyRange() { m_propertyRange.start = m_propertyRange.end = std::numeric_limits<unsigned>::max(); }
- bool isExtractingSourceData() const { return !!m_currentRuleDataStack; }
- void syntaxError(const Location&, SyntaxErrorType = GeneralSyntaxError);
-
- inline int lex(void* yylval) { return (this->*m_lexFunc)(yylval); }
-
- int token() { return m_token; }
-
-#if ENABLE(CSS_DEVICE_ADAPTATION)
- void markViewportRuleBodyStart() { m_inViewport = true; }
- void markViewportRuleBodyEnd() { m_inViewport = false; }
- Ref<StyleRuleViewport> createViewportRule();
-#endif
-
- Ref<CSSPrimitiveValue> createPrimitiveNumericValue(ValueWithCalculation&);
- Ref<CSSPrimitiveValue> createPrimitiveStringValue(CSSParserValue&);
-
- static URL completeURL(const CSSParserContext&, const String& url);
-
- Location currentLocation();
- static bool isCalculation(CSSParserValue&);
-
- void setCustomPropertyName(const AtomicString& propertyName) { m_customPropertyName = propertyName; }
-
- RefPtr<CSSValue> parseVariableDependentValue(CSSPropertyID, const CSSVariableDependentValue&, const CustomPropertyValueMap& customProperties, TextDirection, WritingMode);
-
-private:
- bool is8BitSource() { return m_is8BitSource; }
-
- template <typename SourceCharacterType>
- int realLex(void* yylval);
-
- UChar*& currentCharacter16();
-
- template <typename CharacterType>
- inline CharacterType*& currentCharacter();
-
- template <typename CharacterType>
- inline CharacterType* tokenStart();
-
- template <typename CharacterType>
- inline void setTokenStart(CharacterType*);
-
- inline unsigned tokenStartOffset();
- inline UChar tokenStartChar();
-
- inline unsigned currentCharacterOffset();
-
- template <typename CharacterType>
- inline bool isIdentifierStart();
-
- template <typename CharacterType>
- unsigned parseEscape(CharacterType*&);
- template <typename DestCharacterType>
- inline void UnicodeToChars(DestCharacterType*&, unsigned);
- template <typename SrcCharacterType, typename DestCharacterType>
- inline bool parseIdentifierInternal(SrcCharacterType*&, DestCharacterType*&, bool&);
-
- template <typename CharacterType>
- inline void parseIdentifier(CharacterType*&, CSSParserString&, bool&);
-
- template <typename SrcCharacterType, typename DestCharacterType>
- inline bool parseStringInternal(SrcCharacterType*&, DestCharacterType*&, UChar);
-
- template <typename CharacterType>
- inline void parseString(CharacterType*&, CSSParserString& resultString, UChar);
-
- template <typename CharacterType>
- inline bool findURI(CharacterType*& start, CharacterType*& end, UChar& quote);
-
- template <typename SrcCharacterType, typename DestCharacterType>
- inline bool parseURIInternal(SrcCharacterType*&, DestCharacterType*&, UChar quote);
-
- template <typename CharacterType>
- inline void parseURI(CSSParserString&);
- template <typename CharacterType>
- inline bool parseUnicodeRange();
- template <typename CharacterType>
- bool parseNthChild();
- template <typename CharacterType>
- bool parseNthChildExtra();
- template <typename CharacterType>
- inline bool detectFunctionTypeToken(int);
- template <typename CharacterType>
- inline void detectMediaQueryToken(int);
- template <typename CharacterType>
- inline void detectNumberToken(CharacterType*, int);
- template <typename CharacterType>
- inline void detectDashToken(int);
- template <typename CharacterType>
- inline void detectAtToken(int, bool);
- template <typename CharacterType>
- inline void detectSupportsToken(int);
-
- template <typename CharacterType>
- inline void setRuleHeaderEnd(const CharacterType*);
-
- void setStyleSheet(StyleSheetContents* styleSheet) { m_styleSheet = styleSheet; }
-
- inline bool inStrictMode() const { return m_context.mode == CSSStrictMode || m_context.mode == SVGAttributeMode; }
- inline bool inQuirksMode() const { return m_context.mode == CSSQuirksMode; }
-
- URL completeURL(const String& url) const;
-
- void recheckAtKeyword(const UChar* str, int len);
-
- template<unsigned prefixLength, unsigned suffixLength>
- void setupParser(const char (&prefix)[prefixLength], StringView string, const char (&suffix)[suffixLength])
- {
- setupParser(prefix, prefixLength - 1, string, suffix, suffixLength - 1);
- }
- void setupParser(const char* prefix, unsigned prefixLength, StringView, const char* suffix, unsigned suffixLength);
- bool inShorthand() const { return m_inParseShorthand; }
-
- bool isValidSize(ValueWithCalculation&);
-
- bool isGeneratedImageValue(CSSParserValue&) const;
- bool parseGeneratedImage(CSSParserValueList&, RefPtr<CSSValue>&);
-
- ParseResult parseValue(MutableStyleProperties&, CSSPropertyID, const String&, bool important, StyleSheetContents* contextStyleSheet);
- Ref<ImmutableStyleProperties> parseDeclaration(const String&, StyleSheetContents* contextStyleSheet);
-
- RefPtr<CSSBasicShapeInset> parseInsetRoundedCorners(Ref<CSSBasicShapeInset>&&, CSSParserValueList&);
-
- enum SizeParameterType {
- None,
- Auto,
- Length,
- PageSize,
- Orientation,
- };
-
- bool parsePage(CSSPropertyID propId, bool important);
- bool parseSize(CSSPropertyID propId, bool important);
- SizeParameterType parseSizeParameter(CSSValueList& parsedValues, CSSParserValue&, SizeParameterType prevParamType);
-
-#if ENABLE(CSS_SCROLL_SNAP)
- bool parseNonElementSnapPoints(CSSPropertyID propId, bool important);
- bool parseScrollSnapDestination(CSSPropertyID propId, bool important);
- bool parseScrollSnapCoordinate(CSSPropertyID propId, bool important);
- bool parseScrollSnapPositions(RefPtr<CSSValue>& cssValueX, RefPtr<CSSValue>& cssValueY);
-#endif
-
- bool parseFontFaceSrcURI(CSSValueList&);
- bool parseFontFaceSrcLocal(CSSValueList&);
-
- bool parseColor(const String&);
-
-#if ENABLE(CSS_GRID_LAYOUT)
- bool parseIntegerOrCustomIdentFromGridPosition(RefPtr<CSSPrimitiveValue>& numericValue, RefPtr<CSSPrimitiveValue>& gridLineName);
-#endif
-
- enum ParsingMode {
- NormalMode,
- MediaQueryMode,
- SupportsMode,
- NthChildMode
- };
-
- ParsingMode m_parsingMode { NormalMode };
- bool m_is8BitSource { false };
- std::unique_ptr<LChar[]> m_dataStart8;
- std::unique_ptr<UChar[]> m_dataStart16;
- LChar* m_currentCharacter8 { nullptr };
- UChar* m_currentCharacter16 { nullptr };
- union {
- LChar* ptr8;
- UChar* ptr16;
- } m_tokenStart { nullptr };
- unsigned m_length { 0 };
- int m_token { 0 };
- int m_lineNumber { 0 };
- int m_tokenStartLineNumber { 0 };
- int m_tokenStartColumnNumber { 0 };
- int m_lastSelectorLineNumber { 0 };
- int m_columnOffsetForLine { 0 };
-
- int m_sheetStartLineNumber { 0 };
- int m_sheetStartColumnNumber { 0 };
-
- bool m_allowImportRules { true };
- bool m_allowNamespaceDeclarations { true };
-
-#if ENABLE(CSS_DEVICE_ADAPTATION)
- bool parseViewportProperty(CSSPropertyID propId, bool important);
- bool parseViewportShorthand(CSSPropertyID propId, CSSPropertyID first, CSSPropertyID second, bool important);
-
- bool inViewport() const { return m_inViewport; }
- bool m_inViewport { false };
-#endif
-
- bool useLegacyBackgroundSizeShorthandBehavior() const;
-
- int (CSSParser::*m_lexFunc)(void*);
-
- std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> m_recycledSelectorVector;
-
- std::unique_ptr<RuleSourceDataList> m_supportsRuleDataStack;
-
- // defines units allowed for a certain property, used in parseUnit
- enum Units {
- FUnknown = 0x0000,
- FInteger = 0x0001,
- FNumber = 0x0002, // Real Numbers
- FPercent = 0x0004,
- FLength = 0x0008,
- FAngle = 0x0010,
- FTime = 0x0020,
- FFrequency = 0x0040,
- FPositiveInteger = 0x0080,
- FRelative = 0x0100,
-#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
- FResolution = 0x0200,
-#endif
- FNonNeg = 0x0400
- };
-
- friend inline Units operator|(Units a, Units b)
- {
- return static_cast<Units>(static_cast<unsigned>(a) | static_cast<unsigned>(b));
- }
-
- enum ReleaseParsedCalcValueCondition {
- ReleaseParsedCalcValue,
- DoNotReleaseParsedCalcValue
- };
-
- bool isLoggingErrors();
- void logError(const String& message, int lineNumber, int columnNumber);
-
- bool validateCalculationUnit(ValueWithCalculation&, Units);
-
- bool shouldAcceptUnitLessValues(CSSParserValue&, Units, CSSParserMode);
-
- inline bool validateUnit(ValueWithCalculation& value, Units unitFlags) { return validateUnit(value, unitFlags, m_context.mode); }
- bool validateUnit(ValueWithCalculation&, Units, CSSParserMode);
-
- bool parseBorderImageQuad(Units, RefPtr<CSSPrimitiveValue>&);
- int colorIntFromValue(ValueWithCalculation&);
- double parsedDouble(ValueWithCalculation&);
-
- friend class TransformOperationInfo;
- friend class FilterOperationInfo;
-};
-
-CSSPropertyID cssPropertyID(const CSSParserString&);
-CSSPropertyID cssPropertyID(const String&);
-CSSValueID cssValueKeywordID(const CSSParserString&);
-#if PLATFORM(IOS)
-void cssPropertyNameIOSAliasing(const char* propertyName, const char*& propertyNameAlias, unsigned& newLength);
-#endif
-
-class ShorthandScope {
- WTF_MAKE_FAST_ALLOCATED;
-public:
- ShorthandScope(CSSParser* parser, CSSPropertyID propId) : m_parser(parser)
- {
- if (!(m_parser->m_inParseShorthand++))
- m_parser->m_currentShorthand = propId;
- }
- ~ShorthandScope()
- {
- if (!(--m_parser->m_inParseShorthand))
- m_parser->m_currentShorthand = CSSPropertyInvalid;
- }
-
-private:
- CSSParser* m_parser;
-};
-
-struct CSSParser::Location {
- int lineNumber;
- int columnNumber;
- CSSParserString token;
-};
-
-String quoteCSSString(const String&);
-String quoteCSSStringIfNeeded(const String&);
-String quoteCSSURLIfNeeded(const String&);
-
-bool isValidNthToken(const CSSParserString&);
-
-template <>
-inline void CSSParser::setTokenStart<LChar>(LChar* tokenStart)
-{
- m_tokenStart.ptr8 = tokenStart;
-}
-
-template <>
-inline void CSSParser::setTokenStart<UChar>(UChar* tokenStart)
-{
- m_tokenStart.ptr16 = tokenStart;
-}
-
-inline unsigned CSSParser::tokenStartOffset()
-{
- if (is8BitSource())
- return m_tokenStart.ptr8 - m_dataStart8.get();
- return m_tokenStart.ptr16 - m_dataStart16.get();
-}
-
-unsigned CSSParser::currentCharacterOffset()
-{
- if (is8BitSource())
- return m_currentCharacter8 - m_dataStart8.get();
- return m_currentCharacter16 - m_dataStart16.get();
-}
-
-inline UChar CSSParser::tokenStartChar()
-{
- if (is8BitSource())
- return *m_tokenStart.ptr8;
- return *m_tokenStart.ptr16;
-}
-
-inline bool isCustomPropertyName(const String& propertyName)
-{
- return propertyName.length() > 2 && propertyName.characterAt(0) == '-' && propertyName.characterAt(1) == '-';
-}
-
-inline int cssyylex(void* yylval, CSSParser* parser)
-{
- return parser->lex(yylval);
-}
-
-} // namespace WebCore
</del></span></pre></div>
<a id="trunkSourceWebCorecssCSSParserModeh"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WebCore/css/CSSParserMode.h (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/CSSParserMode.h 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/css/CSSParserMode.h 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1,86 +0,0 @@
</span><del>-/*
- * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
- * Copyright (C) 2012 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- * 2. Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
- * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
- * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef CSSParserMode_h
-#define CSSParserMode_h
-
-#include "URL.h"
-
-namespace WebCore {
-
-class Document;
-
-enum CSSParserMode {
- CSSQuirksMode,
- CSSStrictMode,
- // SVG should always be in strict mode. For SVG attributes, the rules differ to strict sometimes.
- SVGAttributeMode
-};
-
-inline CSSParserMode strictToCSSParserMode(bool inStrictMode)
-{
- return inStrictMode ? CSSStrictMode : CSSQuirksMode;
-}
-
-inline bool isStrictParserMode(CSSParserMode cssParserMode)
-{
- return cssParserMode == CSSStrictMode || cssParserMode == SVGAttributeMode;
-}
-
-struct CSSParserContext {
- WTF_MAKE_FAST_ALLOCATED;
-public:
- CSSParserContext(CSSParserMode, const URL& baseURL = URL());
- WEBCORE_EXPORT CSSParserContext(Document&, const URL& baseURL = URL(), const String& charset = emptyString());
-
- URL baseURL;
- String charset;
- CSSParserMode mode { CSSStrictMode };
- bool isHTMLDocument { false };
-#if ENABLE(CSS_GRID_LAYOUT)
- bool cssGridLayoutEnabled { false };
-#endif
-#if ENABLE(IOS_TEXT_AUTOSIZING)
- bool textAutosizingEnabled { false };
-#endif
- bool needsSiteSpecificQuirks { false };
- bool enforcesCSSMIMETypeInNoQuirksMode { true };
- bool useLegacyBackgroundSizeShorthandBehavior { false };
- bool springTimingFunctionEnabled { false };
-};
-
-bool operator==(const CSSParserContext&, const CSSParserContext&);
-inline bool operator!=(const CSSParserContext& a, const CSSParserContext& b) { return !(a == b); }
-
-WEBCORE_EXPORT const CSSParserContext& strictCSSParserContext();
-
-};
-
-#endif // CSSParserMode_h
</del></span></pre></div>
<a id="trunkSourceWebCorecssCSSParserValuescpp"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WebCore/css/CSSParserValues.cpp (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/CSSParserValues.cpp 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/css/CSSParserValues.cpp 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1,446 +0,0 @@
</span><del>-/*
- * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
- * Copyright (C) 2004, 2005, 2006, 2008, 2014 Apple Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-#include "CSSParserValues.h"
-
-#include "CSSCustomPropertyValue.h"
-#include "CSSPrimitiveValue.h"
-#include "CSSFunctionValue.h"
-#include "CSSSelector.h"
-#include "CSSSelectorList.h"
-#include "CSSVariableValue.h"
-#include "SelectorPseudoTypeMap.h"
-
-namespace WebCore {
-
-using namespace WTF;
-
-void destroy(const CSSParserValue& value)
-{
- if (value.unit == CSSParserValue::Function)
- delete value.function;
- else if (value.unit == CSSParserValue::ValueList)
- delete value.valueList;
- else if (value.unit == CSSParserValue::Variable)
- delete value.variable;
-}
-
-CSSParserValueList::~CSSParserValueList()
-{
- for (auto& value : m_values)
- destroy(value);
-}
-
-void CSSParserValueList::addValue(const CSSParserValue& value)
-{
- m_values.append(value);
-}
-
-void CSSParserValueList::insertValueAt(unsigned i, const CSSParserValue& value)
-{
- m_values.insert(i, value);
-}
-
-void CSSParserValueList::extend(CSSParserValueList& other)
-{
- for (auto& value : other.m_values) {
- m_values.append(value);
- value.unit = 0; // We moved the CSSParserValue from the other list; this acts like std::move.
- }
-}
-
-bool CSSParserValueList::containsVariables() const
-{
- for (unsigned i = 0; i < size(); i++) {
- auto* parserValue = &m_values[i];
- if (parserValue->unit == CSSParserValue::Variable)
- return true;
- if (parserValue->unit == CSSParserValue::Function && parserValue->function->args
- && parserValue->function->args->containsVariables())
- return true;
- if (parserValue->unit == CSSParserValue::ValueList && parserValue->valueList->containsVariables())
- return true;
- }
- return false;
-}
-
-RefPtr<CSSValue> CSSParserValue::createCSSValue()
-{
- RefPtr<CSSValue> parsedValue;
- if (id)
- return CSSPrimitiveValue::createIdentifier(id);
-
- if (unit == CSSParserValue::Operator) {
- auto primitiveValue = CSSPrimitiveValue::createParserOperator(iValue);
- primitiveValue->setPrimitiveType(CSSPrimitiveValue::CSS_PARSER_OPERATOR);
- return WTFMove(primitiveValue);
- }
- if (unit == CSSParserValue::Function)
- return CSSFunctionValue::create(function);
- if (unit == CSSParserValue::Variable)
- return CSSVariableValue::create(variable);
- if (unit == CSSParserValue::ValueList)
- return CSSValueList::createFromParserValueList(*valueList);
-
- if (unit >= CSSParserValue::Q_EMS)
- return CSSPrimitiveValue::createAllowingMarginQuirk(fValue, CSSPrimitiveValue::CSS_EMS);
-
- CSSPrimitiveValue::UnitTypes primitiveUnit = static_cast<CSSPrimitiveValue::UnitTypes>(unit);
- switch (primitiveUnit) {
- case CSSPrimitiveValue::CSS_IDENT:
- case CSSPrimitiveValue::CSS_PROPERTY_ID:
- case CSSPrimitiveValue::CSS_VALUE_ID:
- return CSSPrimitiveValue::create(string, CSSPrimitiveValue::CSS_PARSER_IDENTIFIER);
- case CSSPrimitiveValue::CSS_NUMBER:
- return CSSPrimitiveValue::create(fValue, isInt ? CSSPrimitiveValue::CSS_PARSER_INTEGER : CSSPrimitiveValue::CSS_NUMBER);
- case CSSPrimitiveValue::CSS_STRING:
- case CSSPrimitiveValue::CSS_URI:
- case CSSPrimitiveValue::CSS_PARSER_HEXCOLOR:
- case CSSPrimitiveValue::CSS_DIMENSION:
- case CSSPrimitiveValue::CSS_UNICODE_RANGE:
- case CSSPrimitiveValue::CSS_PARSER_WHITESPACE:
- return CSSPrimitiveValue::create(string, primitiveUnit);
- case CSSPrimitiveValue::CSS_PERCENTAGE:
- case CSSPrimitiveValue::CSS_EMS:
- case CSSPrimitiveValue::CSS_EXS:
- case CSSPrimitiveValue::CSS_PX:
- case CSSPrimitiveValue::CSS_CM:
- case CSSPrimitiveValue::CSS_MM:
- case CSSPrimitiveValue::CSS_IN:
- case CSSPrimitiveValue::CSS_PT:
- case CSSPrimitiveValue::CSS_PC:
- case CSSPrimitiveValue::CSS_DEG:
- case CSSPrimitiveValue::CSS_RAD:
- case CSSPrimitiveValue::CSS_GRAD:
- case CSSPrimitiveValue::CSS_MS:
- case CSSPrimitiveValue::CSS_S:
- case CSSPrimitiveValue::CSS_HZ:
- case CSSPrimitiveValue::CSS_KHZ:
- case CSSPrimitiveValue::CSS_VW:
- case CSSPrimitiveValue::CSS_VH:
- case CSSPrimitiveValue::CSS_VMIN:
- case CSSPrimitiveValue::CSS_VMAX:
- case CSSPrimitiveValue::CSS_TURN:
- case CSSPrimitiveValue::CSS_REMS:
- case CSSPrimitiveValue::CSS_CHS:
- case CSSPrimitiveValue::CSS_FR:
- return CSSPrimitiveValue::create(fValue, primitiveUnit);
- case CSSPrimitiveValue::CSS_UNKNOWN:
- case CSSPrimitiveValue::CSS_ATTR:
- case CSSPrimitiveValue::CSS_COUNTER:
- case CSSPrimitiveValue::CSS_RECT:
- case CSSPrimitiveValue::CSS_RGBCOLOR:
- case CSSPrimitiveValue::CSS_DPPX:
- case CSSPrimitiveValue::CSS_DPI:
- case CSSPrimitiveValue::CSS_DPCM:
- case CSSPrimitiveValue::CSS_PAIR:
-#if ENABLE(DASHBOARD_SUPPORT)
- case CSSPrimitiveValue::CSS_DASHBOARD_REGION:
-#endif
- case CSSPrimitiveValue::CSS_PARSER_OPERATOR:
- case CSSPrimitiveValue::CSS_PARSER_INTEGER:
- case CSSPrimitiveValue::CSS_PARSER_IDENTIFIER:
- case CSSPrimitiveValue::CSS_COUNTER_NAME:
- case CSSPrimitiveValue::CSS_SHAPE:
- case CSSPrimitiveValue::CSS_FONT_FAMILY:
- case CSSPrimitiveValue::CSS_QUAD:
-#if ENABLE(CSS_SCROLL_SNAP)
- case CSSPrimitiveValue::CSS_LENGTH_REPEAT:
-#endif
- case CSSPrimitiveValue::CSS_CALC:
- case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_NUMBER:
- case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_LENGTH:
- return nullptr;
- }
-
- ASSERT_NOT_REACHED();
- return nullptr;
-}
-
-CSSParserSelector* CSSParserSelector::parsePagePseudoSelector(const CSSParserString& pseudoTypeString)
-{
- CSSSelector::PagePseudoClassType pseudoType;
- if (equalLettersIgnoringASCIICase(pseudoTypeString, "first"))
- pseudoType = CSSSelector::PagePseudoClassFirst;
- else if (equalLettersIgnoringASCIICase(pseudoTypeString, "left"))
- pseudoType = CSSSelector::PagePseudoClassLeft;
- else if (equalLettersIgnoringASCIICase(pseudoTypeString, "right"))
- pseudoType = CSSSelector::PagePseudoClassRight;
- else
- return nullptr;
-
- auto selector = std::make_unique<CSSParserSelector>();
- selector->m_selector->setMatch(CSSSelector::PagePseudoClass);
- selector->m_selector->setPagePseudoType(pseudoType);
- return selector.release();
-}
-
-CSSParserSelector* CSSParserSelector::parsePseudoElementSelector(CSSParserString& pseudoTypeString)
-{
- pseudoTypeString.convertToASCIILowercaseInPlace();
- AtomicString name = pseudoTypeString;
-
- CSSSelector::PseudoElementType pseudoType = CSSSelector::parsePseudoElementType(name);
- if (pseudoType == CSSSelector::PseudoElementUnknown)
- return nullptr;
-
- auto selector = std::make_unique<CSSParserSelector>();
- selector->m_selector->setMatch(CSSSelector::PseudoElement);
- selector->m_selector->setPseudoElementType(pseudoType);
- if (pseudoType == CSSSelector::PseudoElementWebKitCustomLegacyPrefixed) {
- ASSERT_WITH_MESSAGE(name == "-webkit-input-placeholder", "-webkit-input-placeholder is the only LegacyPrefix pseudo type.");
- if (name == "-webkit-input-placeholder")
- name = AtomicString("placeholder", AtomicString::ConstructFromLiteral);
- }
- selector->m_selector->setValue(name);
- return selector.release();
-}
-
-#if ENABLE(VIDEO_TRACK)
-CSSParserSelector* CSSParserSelector::parsePseudoElementCueFunctionSelector(const CSSParserString& functionIdentifier, Vector<std::unique_ptr<CSSParserSelector>>* parsedSelectorVector)
-{
- ASSERT_UNUSED(functionIdentifier, String(functionIdentifier) == "cue(");
-
- std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> selectorVector(parsedSelectorVector);
-
- if (!selectorVector)
- return nullptr;
-
- auto selector = std::make_unique<CSSParserSelector>();
- selector->m_selector->setMatch(CSSSelector::PseudoElement);
- selector->m_selector->setPseudoElementType(CSSSelector::PseudoElementCue);
- selector->adoptSelectorVector(*selectorVector);
- return selector.release();
-}
-#endif
-
-CSSParserSelector* CSSParserSelector::parsePseudoElementSlottedFunctionSelector(const CSSParserString& functionIdentifier, CSSParserSelector* parsedSelector)
-{
- ASSERT_UNUSED(functionIdentifier, String(functionIdentifier) == "slotted(");
-
- if (!parsedSelector)
- return nullptr;
-
- std::unique_ptr<CSSParserSelector> ownedParsedSelector(parsedSelector);
-
- for (auto* component = parsedSelector; component; component = component->tagHistory()) {
- if (component->matchesPseudoElement())
- return nullptr;
- }
-
- auto selectorVector = std::make_unique<Vector<std::unique_ptr<CSSParserSelector>>>();
- selectorVector->append(WTFMove(ownedParsedSelector));
-
- auto selector = std::make_unique<CSSParserSelector>();
- selector->m_selector->setMatch(CSSSelector::PseudoElement);
- selector->m_selector->setPseudoElementType(CSSSelector::PseudoElementSlotted);
- selector->adoptSelectorVector(*selectorVector);
- return selector.release();
-}
-
-CSSParserSelector* CSSParserSelector::parsePseudoClassHostFunctionSelector(const CSSParserString& functionIdentifier, CSSParserSelector* parsedSelector)
-{
- ASSERT_UNUSED(functionIdentifier, String(functionIdentifier) == "host(");
-
- if (!parsedSelector)
- return nullptr;
-
- std::unique_ptr<CSSParserSelector> ownedParsedSelector(parsedSelector);
-
- for (auto* component = parsedSelector; component; component = component->tagHistory()) {
- if (component->matchesPseudoElement())
- return nullptr;
- }
-
- auto selectorVector = std::make_unique<Vector<std::unique_ptr<CSSParserSelector>>>();
- selectorVector->append(WTFMove(ownedParsedSelector));
-
- auto selector = std::make_unique<CSSParserSelector>();
- selector->m_selector->setMatch(CSSSelector::PseudoClass);
- selector->m_selector->setPseudoClassType(CSSSelector::PseudoClassHost);
- selector->adoptSelectorVector(*selectorVector);
- return selector.release();
-}
-
-CSSParserSelector* CSSParserSelector::parsePseudoClassAndCompatibilityElementSelector(CSSParserString& pseudoTypeString)
-{
- if (pseudoTypeString.length() && pseudoTypeString[pseudoTypeString.length() - 1] == '(')
- return nullptr;
-
- PseudoClassOrCompatibilityPseudoElement pseudoType = parsePseudoClassAndCompatibilityElementString(pseudoTypeString);
- if (pseudoType.pseudoClass != CSSSelector::PseudoClassUnknown) {
- auto selector = std::make_unique<CSSParserSelector>();
- selector->m_selector->setMatch(CSSSelector::PseudoClass);
- selector->m_selector->setPseudoClassType(pseudoType.pseudoClass);
- return selector.release();
- }
- if (pseudoType.compatibilityPseudoElement != CSSSelector::PseudoElementUnknown) {
- auto selector = std::make_unique<CSSParserSelector>();
- selector->m_selector->setMatch(CSSSelector::PseudoElement);
- selector->m_selector->setPseudoElementType(pseudoType.compatibilityPseudoElement);
- AtomicString name = pseudoTypeString;
- selector->m_selector->setValue(name);
- return selector.release();
- }
- return nullptr;
-}
-
-CSSParserSelector::CSSParserSelector()
- : m_selector(std::make_unique<CSSSelector>())
-{
-}
-
-CSSParserSelector::CSSParserSelector(const QualifiedName& tagQName)
- : m_selector(std::make_unique<CSSSelector>(tagQName))
-{
-}
-
-CSSParserSelector::~CSSParserSelector()
-{
- if (!m_tagHistory)
- return;
- Vector<std::unique_ptr<CSSParserSelector>, 16> toDelete;
- std::unique_ptr<CSSParserSelector> selector = WTFMove(m_tagHistory);
- while (true) {
- std::unique_ptr<CSSParserSelector> next = WTFMove(selector->m_tagHistory);
- toDelete.append(WTFMove(selector));
- if (!next)
- break;
- selector = WTFMove(next);
- }
-}
-
-void CSSParserSelector::adoptSelectorVector(Vector<std::unique_ptr<CSSParserSelector>>& selectorVector)
-{
- auto selectorList = std::make_unique<CSSSelectorList>();
- selectorList->adoptSelectorVector(selectorVector);
- m_selector->setSelectorList(WTFMove(selectorList));
-}
-
-void CSSParserSelector::setLangArgumentList(const Vector<CSSParserString>& stringVector)
-{
- ASSERT_WITH_MESSAGE(!stringVector.isEmpty(), "No CSS Selector takes an empty argument list.");
- auto argumentList = std::make_unique<Vector<AtomicString>>();
- argumentList->reserveInitialCapacity(stringVector.size());
- for (const AtomicString& languageArgument : stringVector)
- argumentList->append(languageArgument);
- m_selector->setLangArgumentList(WTFMove(argumentList));
-}
-
-void CSSParserSelector::setPseudoClassValue(const CSSParserString& pseudoClassString)
-{
- ASSERT(m_selector->match() == CSSSelector::PseudoClass);
-
- PseudoClassOrCompatibilityPseudoElement pseudoType = parsePseudoClassAndCompatibilityElementString(pseudoClassString);
- m_selector->setPseudoClassType(pseudoType.pseudoClass);
-}
-
-static bool selectorListMatchesPseudoElement(const CSSSelectorList* selectorList)
-{
- if (!selectorList)
- return false;
-
- for (const CSSSelector* subSelector = selectorList->first(); subSelector; subSelector = CSSSelectorList::next(subSelector)) {
- for (const CSSSelector* selector = subSelector; selector; selector = selector->tagHistory()) {
- if (selector->matchesPseudoElement())
- return true;
- if (const CSSSelectorList* subselectorList = selector->selectorList()) {
- if (selectorListMatchesPseudoElement(subselectorList))
- return true;
- }
- }
- }
- return false;
-}
-
-bool CSSParserSelector::matchesPseudoElement() const
-{
- return m_selector->matchesPseudoElement() || selectorListMatchesPseudoElement(m_selector->selectorList());
-}
-
-void CSSParserSelector::insertTagHistory(CSSSelector::Relation before, std::unique_ptr<CSSParserSelector> selector, CSSSelector::Relation after)
-{
- if (m_tagHistory)
- selector->setTagHistory(WTFMove(m_tagHistory));
- setRelation(before);
- selector->setRelation(after);
- m_tagHistory = WTFMove(selector);
-}
-
-void CSSParserSelector::appendTagHistory(CSSSelector::Relation relation, std::unique_ptr<CSSParserSelector> selector)
-{
- CSSParserSelector* end = this;
- while (end->tagHistory())
- end = end->tagHistory();
-
- end->setRelation(relation);
- end->setTagHistory(WTFMove(selector));
-}
-
-void CSSParserSelector::appendTagHistory(CSSParserSelectorCombinator relation, std::unique_ptr<CSSParserSelector> selector)
-{
- CSSParserSelector* end = this;
- while (end->tagHistory())
- end = end->tagHistory();
-
- CSSSelector::Relation selectorRelation;
- switch (relation) {
- case CSSParserSelectorCombinator::Child:
- selectorRelation = CSSSelector::Child;
- break;
- case CSSParserSelectorCombinator::DescendantSpace:
- selectorRelation = CSSSelector::Descendant;
- break;
-#if ENABLE(CSS_SELECTORS_LEVEL4)
- case CSSParserSelectorCombinator::DescendantDoubleChild:
- selectorRelation = CSSSelector::Descendant;
- break;
-#endif
- case CSSParserSelectorCombinator::DirectAdjacent:
- selectorRelation = CSSSelector::DirectAdjacent;
- break;
- case CSSParserSelectorCombinator::IndirectAdjacent:
- selectorRelation = CSSSelector::IndirectAdjacent;
- break;
- }
- end->setRelation(selectorRelation);
-
-#if ENABLE(CSS_SELECTORS_LEVEL4)
- if (relation == CSSParserSelectorCombinator::DescendantDoubleChild)
- end->setDescendantUseDoubleChildSyntax();
-#endif
-
- end->setTagHistory(WTFMove(selector));
-}
-
-void CSSParserSelector::prependTagSelector(const QualifiedName& tagQName, bool tagIsForNamespaceRule)
-{
- auto second = std::make_unique<CSSParserSelector>();
- second->m_selector = WTFMove(m_selector);
- second->m_tagHistory = WTFMove(m_tagHistory);
- m_tagHistory = WTFMove(second);
-
- m_selector = std::make_unique<CSSSelector>(tagQName, tagIsForNamespaceRule);
- m_selector->setRelation(CSSSelector::SubSelector);
-}
-
-}
-
</del></span></pre></div>
<a id="trunkSourceWebCorecssCSSParserValuesh"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WebCore/css/CSSParserValues.h (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/CSSParserValues.h 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/css/CSSParserValues.h 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1,276 +0,0 @@
</span><del>-/*
- * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
- * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010, 2014 Apple Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#pragma once
-
-#include "CSSSelector.h"
-#include "CSSValueKeywords.h"
-#include "CSSValueList.h"
-#include <wtf/text/AtomicString.h>
-#include <wtf/text/AtomicStringHash.h>
-#include <wtf/text/WTFString.h>
-
-namespace WebCore {
-
-class CSSValue;
-class QualifiedName;
-
-// This should be a StringView but currently it can't because it's used as an element of a union in CSSParserValue.
-struct CSSParserString {
- void init(LChar* characters, unsigned length)
- {
- m_data.characters8 = characters;
- m_length = length;
- m_is8Bit = true;
- }
-
- void init(UChar* characters, unsigned length)
- {
- m_data.characters16 = characters;
- m_length = length;
- m_is8Bit = false;
- }
-
- void init(const String& string)
- {
- m_length = string.length();
- if (!m_length || string.is8Bit()) {
- m_data.characters8 = const_cast<LChar*>(string.characters8());
- m_is8Bit = true;
- } else {
- m_data.characters16 = const_cast<UChar*>(string.characters16());
- m_is8Bit = false;
- }
- }
-
- void clear()
- {
- m_data.characters8 = 0;
- m_length = 0;
- m_is8Bit = true;
- }
-
- bool is8Bit() const { return m_is8Bit; }
- LChar* characters8() const { ASSERT(is8Bit()); return m_data.characters8; }
- UChar* characters16() const { ASSERT(!is8Bit()); return m_data.characters16; }
- template<typename CharacterType> CharacterType* characters() const;
-
- unsigned length() const { return m_length; }
- void setLength(unsigned length) { m_length = length; }
-
- void convertToASCIILowercaseInPlace();
-
- UChar operator[](unsigned i) const
- {
- ASSERT_WITH_SECURITY_IMPLICATION(i < m_length);
- if (is8Bit())
- return m_data.characters8[i];
- return m_data.characters16[i];
- }
-
- operator String() const { return is8Bit() ? String(m_data.characters8, m_length) : String(m_data.characters16, m_length); }
- operator AtomicString() const { return is8Bit() ? AtomicString(m_data.characters8, m_length) : AtomicString(m_data.characters16, m_length); }
-
- union {
- LChar* characters8;
- UChar* characters16;
- } m_data;
- unsigned m_length;
- bool m_is8Bit;
-};
-
-template<unsigned length> bool equalLettersIgnoringASCIICase(const CSSParserString&, const char (&lowercaseLetters)[length]);
-
-struct CSSParserFunction;
-struct CSSParserVariable;
-
-struct CSSParserValue {
- CSSValueID id;
- bool isInt;
- union {
- double fValue;
- int iValue;
- CSSParserString string;
- CSSParserFunction* function;
- CSSParserVariable* variable;
- CSSParserValueList* valueList;
- };
- enum {
- Operator = 0x100000,
- Function = 0x100001,
- ValueList = 0x100002,
- Q_EMS = 0x100003,
- Variable = 0x100004
- };
- int unit;
-
- void setFromValueList(std::unique_ptr<CSSParserValueList>);
-
- RefPtr<CSSValue> createCSSValue();
-};
-
-void destroy(const CSSParserValue&);
-
-class CSSParserValueList {
- WTF_MAKE_FAST_ALLOCATED;
-public:
- CSSParserValueList()
- : m_current(0)
- {
- }
- ~CSSParserValueList();
-
- void addValue(const CSSParserValue&);
- void insertValueAt(unsigned, const CSSParserValue&);
- void extend(CSSParserValueList&);
-
- unsigned size() const { return m_values.size(); }
- unsigned currentIndex() { return m_current; }
- CSSParserValue* current() { return m_current < m_values.size() ? &m_values[m_current] : 0; }
- CSSParserValue* next() { ++m_current; return current(); }
- CSSParserValue* previous()
- {
- if (!m_current)
- return 0;
- --m_current;
- return current();
- }
- void setCurrentIndex(unsigned index)
- {
- ASSERT(index < m_values.size());
- if (index < m_values.size())
- m_current = index;
- }
-
- CSSParserValue* valueAt(unsigned i) { return i < m_values.size() ? &m_values[i] : 0; }
-
- void clear() { m_values.clear(); }
-
- String toString();
-
- bool containsVariables() const;
-
-private:
- unsigned m_current;
- Vector<CSSParserValue, 4> m_values;
-};
-
-struct CSSParserFunction {
- WTF_MAKE_FAST_ALLOCATED;
-public:
- CSSParserString name;
- std::unique_ptr<CSSParserValueList> args;
-};
-
-struct CSSParserVariable {
- WTF_MAKE_FAST_ALLOCATED;
-public:
- CSSParserString name; // The custom property name
- std::unique_ptr<CSSParserValueList> args; // The fallback args
-};
-
-enum class CSSParserSelectorCombinator {
- Child,
- DescendantSpace,
-#if ENABLE(CSS_SELECTORS_LEVEL4)
- DescendantDoubleChild,
-#endif
- DirectAdjacent,
- IndirectAdjacent
-};
-
-class CSSParserSelector {
- WTF_MAKE_FAST_ALLOCATED;
-public:
- static CSSParserSelector* parsePagePseudoSelector(const CSSParserString& pseudoTypeString);
- static CSSParserSelector* parsePseudoElementSelector(CSSParserString& pseudoTypeString);
- static CSSParserSelector* parsePseudoElementCueFunctionSelector(const CSSParserString& functionIdentifier, Vector<std::unique_ptr<CSSParserSelector>>*);
- static CSSParserSelector* parsePseudoElementSlottedFunctionSelector(const CSSParserString& functionIdentifier, CSSParserSelector*);
- static CSSParserSelector* parsePseudoClassHostFunctionSelector(const CSSParserString& functionIdentifier, CSSParserSelector*);
- static CSSParserSelector* parsePseudoClassAndCompatibilityElementSelector(CSSParserString& pseudoTypeString);
-
- CSSParserSelector();
- explicit CSSParserSelector(const QualifiedName&);
- ~CSSParserSelector();
-
- std::unique_ptr<CSSSelector> releaseSelector() { return WTFMove(m_selector); }
-
- void setValue(const AtomicString& value) { m_selector->setValue(value); }
- void setAttribute(const QualifiedName& value, bool isCaseInsensitive) { m_selector->setAttribute(value, isCaseInsensitive); }
- void setArgument(const AtomicString& value) { m_selector->setArgument(value); }
- void setAttributeValueMatchingIsCaseInsensitive(bool isCaseInsensitive) { m_selector->setAttributeValueMatchingIsCaseInsensitive(isCaseInsensitive); }
- void setMatch(CSSSelector::Match value) { m_selector->setMatch(value); }
- void setRelation(CSSSelector::Relation value) { m_selector->setRelation(value); }
- void setForPage() { m_selector->setForPage(); }
-
- void adoptSelectorVector(Vector<std::unique_ptr<CSSParserSelector>>& selectorVector);
- void setLangArgumentList(const Vector<CSSParserString>& stringVector);
-
- void setPseudoClassValue(const CSSParserString& pseudoClassString);
- CSSSelector::PseudoClassType pseudoClassType() const { return m_selector->pseudoClassType(); }
- bool isCustomPseudoElement() const { return m_selector->isCustomPseudoElement(); }
-
- bool isPseudoElementCueFunction() const
- {
-#if ENABLE(VIDEO_TRACK)
- return m_selector->match() == CSSSelector::PseudoElement && m_selector->pseudoElementType() == CSSSelector::PseudoElementCue;
-#else
- return false;
-#endif
- }
-
- bool hasShadowDescendant() const;
- bool matchesPseudoElement() const;
-
- CSSParserSelector* tagHistory() const { return m_tagHistory.get(); }
- void setTagHistory(std::unique_ptr<CSSParserSelector> selector) { m_tagHistory = WTFMove(selector); }
- void clearTagHistory() { m_tagHistory.reset(); }
- void insertTagHistory(CSSSelector::Relation before, std::unique_ptr<CSSParserSelector>, CSSSelector::Relation after);
- void appendTagHistory(CSSSelector::Relation, std::unique_ptr<CSSParserSelector>);
- void appendTagHistory(CSSParserSelectorCombinator, std::unique_ptr<CSSParserSelector>);
- void prependTagSelector(const QualifiedName&, bool tagIsForNamespaceRule = false);
-
-private:
-#if ENABLE(CSS_SELECTORS_LEVEL4)
- void setDescendantUseDoubleChildSyntax() { m_selector->setDescendantUseDoubleChildSyntax(); }
-#endif
-
- std::unique_ptr<CSSSelector> m_selector;
- std::unique_ptr<CSSParserSelector> m_tagHistory;
-};
-
-inline bool CSSParserSelector::hasShadowDescendant() const
-{
- return m_selector->relation() == CSSSelector::ShadowDescendant;
-}
-
-inline void CSSParserValue::setFromValueList(std::unique_ptr<CSSParserValueList> valueList)
-{
- id = CSSValueInvalid;
- this->valueList = valueList.release();
- unit = ValueList;
-}
-
-template<unsigned length> inline bool equalLettersIgnoringASCIICase(const CSSParserString& string, const char (&lowercaseLetters)[length])
-{
- return WTF::equalLettersIgnoringASCIICaseCommon(string, lowercaseLetters);
-}
-
-}
</del></span></pre></div>
<a id="trunkSourceWebCorecssSVGCSSParsercpp"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WebCore/css/SVGCSSParser.cpp (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/SVGCSSParser.cpp 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/css/SVGCSSParser.cpp 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1,432 +0,0 @@
</span><del>-/*
- Copyright (C) 2008 Eric Seidel <eric@webkit.org>
- Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
- 2004, 2005, 2007, 2010 Rob Buis <buis@kde.org>
- Copyright (C) 2005, 2006 Apple Inc.
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-*/
-
-#include "config.h"
-
-#include "CSSInheritedValue.h"
-#include "CSSInitialValue.h"
-#include "CSSParser.h"
-#include "CSSPropertyNames.h"
-#include "CSSValueKeywords.h"
-#include "CSSValueList.h"
-#include "RenderTheme.h"
-#include "SVGPaint.h"
-
-namespace WebCore {
-
-static bool isValidSystemControlColorValue(CSSValueID id)
-{
- return id >= CSSValueActiveborder && CSSParser::isValidSystemColorValue(id);
-}
-
-bool CSSParser::parseSVGValue(CSSPropertyID propId, bool important)
-{
- if (!m_valueList->current())
- return false;
- ValueWithCalculation valueWithCalculation(*m_valueList->current());
-
- CSSValueID id = valueWithCalculation.value().id;
-
- bool valid_primitive = false;
- RefPtr<CSSValue> parsedValue;
-
- switch (propId) {
- /* The comment to the right defines all valid value of these
- * properties as defined in SVG 1.1, Appendix N. Property index */
- case CSSPropertyAlignmentBaseline:
- // auto | baseline | before-edge | text-before-edge | middle |
- // central | after-edge | text-after-edge | ideographic | alphabetic |
- // hanging | mathematical | inherit
- if (id == CSSValueAuto || id == CSSValueBaseline || id == CSSValueMiddle ||
- (id >= CSSValueBeforeEdge && id <= CSSValueMathematical))
- valid_primitive = true;
- break;
-
- case CSSPropertyBaselineShift:
- // baseline | super | sub | <percentage> | <length> | inherit
- if (id == CSSValueBaseline || id == CSSValueSub ||
- id >= CSSValueSuper)
- valid_primitive = true;
- else
- valid_primitive = validateUnit(valueWithCalculation, FLength | FPercent, SVGAttributeMode);
- break;
-
- case CSSPropertyDominantBaseline:
- // auto | use-script | no-change | reset-size | ideographic |
- // alphabetic | hanging | mathematical | central | middle |
- // text-after-edge | text-before-edge | inherit
- if (id == CSSValueAuto || id == CSSValueMiddle ||
- (id >= CSSValueUseScript && id <= CSSValueResetSize) ||
- (id >= CSSValueCentral && id <= CSSValueMathematical))
- valid_primitive = true;
- break;
-
- case CSSPropertyEnableBackground:
- // accumulate | new [x] [y] [width] [height] | inherit
- if (id == CSSValueAccumulate) // TODO : new
- valid_primitive = true;
- break;
-
- case CSSPropertyMarkerStart:
- case CSSPropertyMarkerMid:
- case CSSPropertyMarkerEnd:
- case CSSPropertyMask:
- if (id == CSSValueNone)
- valid_primitive = true;
- else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_URI) {
- parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().string, CSSPrimitiveValue::CSS_URI);
- if (parsedValue)
- m_valueList->next();
- }
- break;
-
- case CSSPropertyClipRule: // nonzero | evenodd | inherit
- case CSSPropertyFillRule:
- if (id == CSSValueNonzero || id == CSSValueEvenodd)
- valid_primitive = true;
- break;
-
- case CSSPropertyStrokeMiterlimit: // <miterlimit> | inherit
- valid_primitive = validateUnit(valueWithCalculation, FNumber | FNonNeg, SVGAttributeMode);
- break;
-
- case CSSPropertyStrokeLinejoin: // miter | round | bevel | inherit
- if (id == CSSValueMiter || id == CSSValueRound || id == CSSValueBevel)
- valid_primitive = true;
- break;
-
- case CSSPropertyStrokeLinecap: // butt | round | square | inherit
- if (id == CSSValueButt || id == CSSValueRound || id == CSSValueSquare)
- valid_primitive = true;
- break;
-
- case CSSPropertyStrokeOpacity: // <opacity-value> | inherit
- case CSSPropertyFillOpacity:
- case CSSPropertyStopOpacity:
- case CSSPropertyFloodOpacity:
- valid_primitive = (!id && validateUnit(valueWithCalculation, FNumber | FPercent, SVGAttributeMode));
- break;
-
- case CSSPropertyShapeRendering:
- // auto | optimizeSpeed | crispEdges | geometricPrecision | inherit
- if (id == CSSValueAuto || id == CSSValueOptimizespeed ||
- id == CSSValueCrispedges || id == CSSValueGeometricprecision)
- valid_primitive = true;
- break;
-
- case CSSPropertyColorRendering: // auto | optimizeSpeed | optimizeQuality | inherit
- if (id == CSSValueAuto || id == CSSValueOptimizespeed ||
- id == CSSValueOptimizequality)
- valid_primitive = true;
- break;
-
- case CSSPropertyBufferedRendering: // auto | dynamic | static
- if (id == CSSValueAuto || id == CSSValueDynamic || id == CSSValueStatic)
- valid_primitive = true;
- break;
-
- case CSSPropertyColorProfile: // auto | sRGB | <name> | <uri> inherit
- if (id == CSSValueAuto || id == CSSValueSrgb)
- valid_primitive = true;
- break;
-
- case CSSPropertyColorInterpolation: // auto | sRGB | linearRGB | inherit
- case CSSPropertyColorInterpolationFilters:
- if (id == CSSValueAuto || id == CSSValueSrgb || id == CSSValueLinearrgb)
- valid_primitive = true;
- break;
-
- /* Start of supported CSS properties with validation. This is needed for parseShortHand to work
- * correctly and allows optimization in applyRule(..)
- */
-
- case CSSPropertyTextAnchor: // start | middle | end | inherit
- if (id == CSSValueStart || id == CSSValueMiddle || id == CSSValueEnd)
- valid_primitive = true;
- break;
-
- case CSSPropertyGlyphOrientationVertical: // auto | <angle> | inherit
- if (id == CSSValueAuto) {
- valid_primitive = true;
- break;
- }
- FALLTHROUGH;
-
- case CSSPropertyGlyphOrientationHorizontal: // <angle> (restricted to _deg_ per SVG 1.1 spec) | inherit
- if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_DEG || valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_NUMBER) {
- parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().fValue, CSSPrimitiveValue::CSS_DEG);
-
- if (parsedValue)
- m_valueList->next();
- }
- break;
- case CSSPropertyPaintOrder:
- if (id == CSSValueNormal)
- valid_primitive = true;
- else
- parsedValue = parsePaintOrder();
- break;
- case CSSPropertyFill: // <paint> | inherit
- case CSSPropertyStroke: // <paint> | inherit
- {
- if (id == CSSValueNone)
- parsedValue = SVGPaint::createNone();
- else if (id == CSSValueCurrentcolor)
- parsedValue = SVGPaint::createCurrentColor();
- else if (isValidSystemControlColorValue(id) || id == CSSValueMenu)
- parsedValue = SVGPaint::createColor(RenderTheme::defaultTheme()->systemColor(id));
- else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_URI) {
- RGBA32 c = Color::transparent;
- if (m_valueList->next()) {
- if (parseColorFromValue(*m_valueList->current(), c))
- parsedValue = SVGPaint::createURIAndColor(valueWithCalculation.value().string, c);
- else if (m_valueList->current()->id == CSSValueNone)
- parsedValue = SVGPaint::createURIAndNone(valueWithCalculation.value().string);
- }
- if (!parsedValue)
- parsedValue = SVGPaint::createURI(valueWithCalculation.value().string);
- } else
- parsedValue = parseSVGPaint();
-
- if (parsedValue)
- m_valueList->next();
- }
- break;
-
- case CSSPropertyStopColor: // TODO : icccolor
- case CSSPropertyFloodColor:
- case CSSPropertyLightingColor:
- if (CSSParser::isValidSystemColorValue(id)
- || (id >= CSSValueAliceblue && id <= CSSValueYellowgreen))
- parsedValue = SVGColor::createFromString(valueWithCalculation.value().string);
- else if (id == CSSValueCurrentcolor)
- parsedValue = SVGColor::createCurrentColor();
- else // TODO : svgcolor (iccColor)
- parsedValue = parseSVGColor();
-
- if (parsedValue)
- m_valueList->next();
-
- break;
-
- case CSSPropertyVectorEffect: // none | non-scaling-stroke | inherit
- if (id == CSSValueNone || id == CSSValueNonScalingStroke)
- valid_primitive = true;
- break;
-
- case CSSPropertyWritingMode:
- // lr-tb | rl_tb | tb-rl | lr | rl | tb | inherit
- if (id == CSSValueLrTb || id == CSSValueRlTb || id == CSSValueTbRl || id == CSSValueLr || id == CSSValueRl || id == CSSValueTb)
- valid_primitive = true;
- break;
-
- case CSSPropertyStrokeWidth: // <length> | inherit
- case CSSPropertyStrokeDashoffset:
- valid_primitive = validateUnit(valueWithCalculation, FLength | FPercent, SVGAttributeMode);
- break;
- case CSSPropertyStrokeDasharray: // none | <dasharray> | inherit
- if (id == CSSValueNone)
- valid_primitive = true;
- else
- parsedValue = parseSVGStrokeDasharray();
-
- break;
-
- case CSSPropertyKerning: // auto | normal | <length> | inherit
- if (id == CSSValueAuto || id == CSSValueNormal)
- valid_primitive = true;
- else
- valid_primitive = validateUnit(valueWithCalculation, FLength, SVGAttributeMode);
- break;
-
- case CSSPropertyClipPath: // <uri> | none | inherit
- case CSSPropertyFilter:
- if (id == CSSValueNone)
- valid_primitive = true;
- else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_URI) {
- parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().string, (CSSPrimitiveValue::UnitTypes) valueWithCalculation.value().unit);
- if (parsedValue)
- m_valueList->next();
- }
- break;
- case CSSPropertyWebkitSvgShadow:
- if (id == CSSValueNone)
- valid_primitive = true;
- else {
- auto shadowValueList = parseShadow(*m_valueList, propId);
- if (shadowValueList) {
- addProperty(propId, WTFMove(shadowValueList), important);
- m_valueList->next();
- return true;
- }
- return false;
- }
- break;
-
- case CSSPropertyMaskType: // luminance | alpha | inherit
- if (id == CSSValueLuminance || id == CSSValueAlpha)
- valid_primitive = true;
- break;
-
- /* shorthand properties */
- case CSSPropertyMarker:
- {
- ShorthandScope scope(this, propId);
- m_implicitShorthand = true;
- if (!parseValue(CSSPropertyMarkerStart, important))
- return false;
- if (m_valueList->current()) {
- rollbackLastProperties(1);
- return false;
- }
- CSSValue* value = m_parsedProperties.last().value();
- addProperty(CSSPropertyMarkerMid, value, important);
- addProperty(CSSPropertyMarkerEnd, value, important);
- m_implicitShorthand = false;
- return true;
- }
- case CSSPropertyCx:
- case CSSPropertyCy:
- case CSSPropertyR:
- case CSSPropertyRx:
- case CSSPropertyRy:
- case CSSPropertyX:
- case CSSPropertyY:
- valid_primitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent));
- break;
- default:
- // If you crash here, it's because you added a css property and are not handling it
- // in either this switch statement or the one in CSSParser::parseValue
- ASSERT_WITH_MESSAGE(0, "unimplemented propertyID: %d", propId);
- return false;
- }
-
- if (valid_primitive) {
- if (id != 0)
- parsedValue = CSSPrimitiveValue::createIdentifier(id);
- else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_STRING)
- parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().string, (CSSPrimitiveValue::UnitTypes) valueWithCalculation.value().unit);
- else if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_NUMBER && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_KHZ)
- parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().fValue, (CSSPrimitiveValue::UnitTypes) valueWithCalculation.value().unit);
- else if (valueWithCalculation.value().unit >= CSSParserValue::Q_EMS)
- parsedValue = CSSPrimitiveValue::createAllowingMarginQuirk(valueWithCalculation.value().fValue, CSSPrimitiveValue::CSS_EMS);
- if (isCalculation(valueWithCalculation))
- parsedValue = CSSPrimitiveValue::create(valueWithCalculation.calculation());
- m_valueList->next();
- }
- if (!parsedValue || (m_valueList->current() && !inShorthand()))
- return false;
-
- addProperty(propId, WTFMove(parsedValue), important);
- return true;
-}
-
-RefPtr<CSSValueList> CSSParser::parseSVGStrokeDasharray()
-{
- RefPtr<CSSValueList> ret = CSSValueList::createCommaSeparated();
- CSSParserValue* value = m_valueList->current();
- bool valid_primitive = true;
- while (value) {
- ValueWithCalculation valueWithCalculation(*value);
- valid_primitive = validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg, SVGAttributeMode);
- if (!valid_primitive)
- break;
- // FIXME: This code doesn't handle calculated values.
- if (value->id != 0)
- ret->append(CSSPrimitiveValue::createIdentifier(value->id));
- else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ)
- ret->append(CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit));
- value = m_valueList->next();
- if (value && value->unit == CSSParserValue::Operator && value->iValue == ',')
- value = m_valueList->next();
- }
- if (!valid_primitive)
- return nullptr;
- return ret;
-}
-
-RefPtr<SVGPaint> CSSParser::parseSVGPaint()
-{
- RGBA32 c = Color::transparent;
- if (!parseColorFromValue(*m_valueList->current(), c))
- return nullptr;
- return SVGPaint::createColor(Color(c));
-}
-
-RefPtr<SVGColor> CSSParser::parseSVGColor()
-{
- RGBA32 c = Color::transparent;
- if (!parseColorFromValue(*m_valueList->current(), c))
- return nullptr;
- return SVGColor::createFromColor(Color(c));
-}
-
-RefPtr<CSSValueList> CSSParser::parsePaintOrder()
-{
- CSSParserValue* value = m_valueList->current();
-
- Vector<CSSValueID> paintTypeList;
- RefPtr<CSSPrimitiveValue> fill;
- RefPtr<CSSPrimitiveValue> stroke;
- RefPtr<CSSPrimitiveValue> markers;
- while (value) {
- if (value->id == CSSValueFill && !fill)
- fill = CSSPrimitiveValue::createIdentifier(value->id);
- else if (value->id == CSSValueStroke && !stroke)
- stroke = CSSPrimitiveValue::createIdentifier(value->id);
- else if (value->id == CSSValueMarkers && !markers)
- markers = CSSPrimitiveValue::createIdentifier(value->id);
- else
- return nullptr;
- paintTypeList.append(value->id);
- value = m_valueList->next();
- }
-
- // After parsing we serialize the paint-order list. Since it is not possible to
- // pop a last list items from CSSValueList without bigger cost, we create the
- // list after parsing.
- CSSValueID firstPaintOrderType = paintTypeList.at(0);
- auto paintOrderList = CSSValueList::createSpaceSeparated();
- switch (firstPaintOrderType) {
- case CSSValueFill:
- FALLTHROUGH;
- case CSSValueStroke:
- paintOrderList->append(firstPaintOrderType == CSSValueFill ? fill.releaseNonNull() : stroke.releaseNonNull());
- if (paintTypeList.size() > 1) {
- if (paintTypeList.at(1) == CSSValueMarkers)
- paintOrderList->append(markers.releaseNonNull());
- }
- break;
- case CSSValueMarkers:
- paintOrderList->append(markers.releaseNonNull());
- if (paintTypeList.size() > 1) {
- if (paintTypeList.at(1) == CSSValueStroke)
- paintOrderList->append(stroke.releaseNonNull());
- }
- break;
- default:
- ASSERT_NOT_REACHED();
- }
- return WTFMove(paintOrderList);
-}
-
-}
</del></span></pre></div>
<a id="trunkSourceWebCorecssparserCSSParsercppfromrev204839trunkSourceWebCorecssCSSParsercpp"></a>
<div class="copfile"><h4>Copied: trunk/Source/WebCore/css/parser/CSSParser.cpp (from rev 204839, trunk/Source/WebCore/css/CSSParser.cpp) (0 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/parser/CSSParser.cpp (rev 0)
+++ trunk/Source/WebCore/css/parser/CSSParser.cpp 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -0,0 +1,13857 @@
</span><ins>+/*
+ * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
+ * Copyright (C) 2004-2015 Apple Inc. All rights reserved.
+ * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
+ * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
+ * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ * Copyright (C) 2012, 2013 Adobe Systems Incorporated. All rights reserved.
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2014 Google Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "CSSParser.h"
+
+#include "CSSAnimationTriggerScrollValue.h"
+#include "CSSAspectRatioValue.h"
+#include "CSSBasicShapes.h"
+#include "CSSBorderImage.h"
+#include "CSSBorderImageSliceValue.h"
+#include "CSSCanvasValue.h"
+#include "CSSContentDistributionValue.h"
+#include "CSSCrossfadeValue.h"
+#include "CSSCursorImageValue.h"
+#include "CSSCustomPropertyValue.h"
+#include "CSSFilterImageValue.h"
+#include "CSSFontFaceRule.h"
+#include "CSSFontFaceSrcValue.h"
+#include "CSSFontFeatureValue.h"
+#include "CSSFontValue.h"
+#include "CSSFunctionValue.h"
+#include "CSSGradientValue.h"
+#include "CSSImageSetValue.h"
+#include "CSSImageValue.h"
+#include "CSSInheritedValue.h"
+#include "CSSInitialValue.h"
+#include "CSSKeyframeRule.h"
+#include "CSSKeyframesRule.h"
+#include "CSSLineBoxContainValue.h"
+#include "CSSMediaRule.h"
+#include "CSSNamedImageValue.h"
+#include "CSSPageRule.h"
+#include "CSSPrimitiveValue.h"
+#include "CSSPrimitiveValueMappings.h"
+#include "CSSPropertySourceData.h"
+#include "CSSReflectValue.h"
+#include "CSSRevertValue.h"
+#include "CSSSelector.h"
+#include "CSSShadowValue.h"
+#include "CSSStyleSheet.h"
+#include "CSSTimingFunctionValue.h"
+#include "CSSUnicodeRangeValue.h"
+#include "CSSUnsetValue.h"
+#include "CSSValueKeywords.h"
+#include "CSSValueList.h"
+#include "CSSValuePool.h"
+#include "CSSVariableDependentValue.h"
+#include "Counter.h"
+#include "Document.h"
+#include "FloatConversion.h"
+#include "GridArea.h"
+#include "HTMLOptGroupElement.h"
+#include "HTMLParserIdioms.h"
+#include "HashTools.h"
+#include "MediaList.h"
+#include "MediaQueryExp.h"
+#include "Page.h"
+#include "PageConsoleClient.h"
+#include "Pair.h"
+#include "Rect.h"
+#include "RenderTheme.h"
+#include "RuntimeEnabledFeatures.h"
+#include "SVGParserUtilities.h"
+#include "SVGPathByteStream.h"
+#include "SVGPathUtilities.h"
+#include "SelectorChecker.h"
+#include "SelectorCheckerTestFunctions.h"
+#include "Settings.h"
+#include "StyleProperties.h"
+#include "StylePropertyShorthand.h"
+#include "StylePropertyShorthandFunctions.h"
+#include "StyleRule.h"
+#include "StyleRuleImport.h"
+#include "StyleSheetContents.h"
+#include "TextEncoding.h"
+#include "WebKitCSSFilterValue.h"
+#include "WebKitCSSRegionRule.h"
+#include "WebKitCSSTransformValue.h"
+#include <bitset>
+#include <limits.h>
+#include <wtf/HexNumber.h>
+#include <wtf/NeverDestroyed.h>
+#include <wtf/StdLibExtras.h>
+#include <wtf/dtoa.h>
+#include <wtf/text/StringBuffer.h>
+#include <wtf/text/StringBuilder.h>
+#include <wtf/text/StringImpl.h>
+
+#if ENABLE(CSS_GRID_LAYOUT)
+#include "CSSGridAutoRepeatValue.h"
+#include "CSSGridLineNamesValue.h"
+#include "CSSGridTemplateAreasValue.h"
+#endif
+
+#if ENABLE(CSS_SCROLL_SNAP)
+#include "LengthRepeat.h"
+#endif
+
+#if ENABLE(DASHBOARD_SUPPORT)
+#include "DashboardRegion.h"
+#endif
+
+#define YYDEBUG 0
+
+#if YYDEBUG > 0
+extern int cssyydebug;
+#endif
+
+extern int cssyyparse(WebCore::CSSParser*);
+
+using namespace WTF;
+
+namespace {
+
+enum PropertyType {
+ PropertyExplicit,
+ PropertyImplicit
+};
+
+class ImplicitScope {
+ WTF_MAKE_NONCOPYABLE(ImplicitScope);
+public:
+ ImplicitScope(WebCore::CSSParser& parser, PropertyType propertyType)
+ : m_parser(parser)
+ {
+ m_parser.m_implicitShorthand = propertyType == PropertyImplicit;
+ }
+
+ ~ImplicitScope()
+ {
+ m_parser.m_implicitShorthand = false;
+ }
+
+private:
+ WebCore::CSSParser& m_parser;
+};
+
+} // namespace
+
+namespace WebCore {
+
+const unsigned CSSParser::invalidParsedPropertiesCount = std::numeric_limits<unsigned>::max();
+static const double MAX_SCALE = 1000000;
+
+template<unsigned length> bool equalLettersIgnoringASCIICase(const CSSParserValue& value, const char (&lowercaseLetters)[length])
+{
+ ASSERT(value.unit == CSSPrimitiveValue::CSS_IDENT || value.unit == CSSPrimitiveValue::CSS_STRING);
+ return equalLettersIgnoringASCIICase(value.string, lowercaseLetters);
+}
+
+static bool hasPrefix(const char* string, unsigned length, const char* prefix)
+{
+ for (unsigned i = 0; i < length; ++i) {
+ if (!prefix[i])
+ return true;
+ if (string[i] != prefix[i])
+ return false;
+ }
+ return false;
+}
+
+template<typename... Args>
+static Ref<CSSPrimitiveValue> createPrimitiveValuePair(Args&&... args)
+{
+ return CSSValuePool::singleton().createValue(Pair::create(std::forward<Args>(args)...));
+}
+
+class AnimationParseContext {
+public:
+ AnimationParseContext() = default;
+
+ void commitFirstAnimation()
+ {
+ m_firstAnimationCommitted = true;
+ }
+
+ bool hasCommittedFirstAnimation() const
+ {
+ return m_firstAnimationCommitted;
+ }
+
+ void commitAnimationPropertyKeyword()
+ {
+ m_animationPropertyKeywordAllowed = false;
+ }
+
+ bool animationPropertyKeywordAllowed() const
+ {
+ return m_animationPropertyKeywordAllowed;
+ }
+
+ bool hasSeenAnimationPropertyKeyword() const
+ {
+ return m_hasSeenAnimationPropertyKeyword;
+ }
+
+ void sawAnimationPropertyKeyword()
+ {
+ m_hasSeenAnimationPropertyKeyword = true;
+ }
+
+private:
+ bool m_animationPropertyKeywordAllowed { true };
+ bool m_firstAnimationCommitted { false };
+ bool m_hasSeenAnimationPropertyKeyword { false };
+};
+
+const CSSParserContext& strictCSSParserContext()
+{
+ static NeverDestroyed<CSSParserContext> strictContext(CSSStrictMode);
+ return strictContext;
+}
+
+CSSParserContext::CSSParserContext(CSSParserMode mode, const URL& baseURL)
+ : baseURL(baseURL)
+ , mode(mode)
+#if ENABLE(CSS_GRID_LAYOUT)
+ , cssGridLayoutEnabled(RuntimeEnabledFeatures::sharedFeatures().isCSSGridLayoutEnabled())
+#endif
+{
+#if PLATFORM(IOS)
+ // FIXME: Force the site specific quirk below to work on iOS. Investigating other site specific quirks
+ // to see if we can enable the preference all together is to be handled by:
+ // <rdar://problem/8493309> Investigate Enabling Site Specific Quirks in MobileSafari and UIWebView
+ needsSiteSpecificQuirks = true;
+#endif
+}
+
+CSSParserContext::CSSParserContext(Document& document, const URL& baseURL, const String& charset)
+ : baseURL(baseURL.isNull() ? document.baseURL() : baseURL)
+ , charset(charset)
+ , mode(document.inQuirksMode() ? CSSQuirksMode : CSSStrictMode)
+ , isHTMLDocument(document.isHTMLDocument())
+#if ENABLE(CSS_GRID_LAYOUT)
+ , cssGridLayoutEnabled(document.isCSSGridLayoutEnabled())
+#endif
+{
+ if (Settings* settings = document.settings()) {
+ needsSiteSpecificQuirks = settings->needsSiteSpecificQuirks();
+ enforcesCSSMIMETypeInNoQuirksMode = settings->enforceCSSMIMETypeInNoQuirksMode();
+ useLegacyBackgroundSizeShorthandBehavior = settings->useLegacyBackgroundSizeShorthandBehavior();
+#if ENABLE(IOS_TEXT_AUTOSIZING)
+ textAutosizingEnabled = settings->textAutosizingEnabled();
+#endif
+ springTimingFunctionEnabled = settings->springTimingFunctionEnabled();
+ }
+
+#if PLATFORM(IOS)
+ // FIXME: Force the site specific quirk below to work on iOS. Investigating other site specific quirks
+ // to see if we can enable the preference all together is to be handled by:
+ // <rdar://problem/8493309> Investigate Enabling Site Specific Quirks in MobileSafari and UIWebView
+ needsSiteSpecificQuirks = true;
+#endif
+}
+
+bool operator==(const CSSParserContext& a, const CSSParserContext& b)
+{
+ return a.baseURL == b.baseURL
+ && a.charset == b.charset
+ && a.mode == b.mode
+ && a.isHTMLDocument == b.isHTMLDocument
+#if ENABLE(CSS_GRID_LAYOUT)
+ && a.cssGridLayoutEnabled == b.cssGridLayoutEnabled
+#endif
+ && a.needsSiteSpecificQuirks == b.needsSiteSpecificQuirks
+ && a.enforcesCSSMIMETypeInNoQuirksMode == b.enforcesCSSMIMETypeInNoQuirksMode
+ && a.useLegacyBackgroundSizeShorthandBehavior == b.useLegacyBackgroundSizeShorthandBehavior
+ && a.springTimingFunctionEnabled == b.springTimingFunctionEnabled;
+}
+
+CSSParser::CSSParser(const CSSParserContext& context)
+ : m_context(context)
+{
+#if YYDEBUG > 0
+ cssyydebug = 1;
+#endif
+}
+
+CSSParser::~CSSParser()
+{
+}
+
+template<typename CharacterType> ALWAYS_INLINE static void convertToASCIILowercaseInPlace(CharacterType* characters, unsigned length)
+{
+ for (unsigned i = 0; i < length; ++i)
+ characters[i] = toASCIILower(characters[i]);
+}
+
+void CSSParserString::convertToASCIILowercaseInPlace()
+{
+ if (is8Bit())
+ WebCore::convertToASCIILowercaseInPlace(characters8(), length());
+ else
+ WebCore::convertToASCIILowercaseInPlace(characters16(), length());
+}
+
+void CSSParser::setupParser(const char* prefix, unsigned prefixLength, StringView string, const char* suffix, unsigned suffixLength)
+{
+ m_parsedTextPrefixLength = prefixLength;
+ unsigned stringLength = string.length();
+ unsigned length = stringLength + m_parsedTextPrefixLength + suffixLength + 1;
+ m_length = length;
+
+ if (!stringLength || string.is8Bit()) {
+ m_dataStart8 = std::make_unique<LChar[]>(length);
+ for (unsigned i = 0; i < m_parsedTextPrefixLength; ++i)
+ m_dataStart8[i] = prefix[i];
+
+ if (stringLength)
+ memcpy(m_dataStart8.get() + m_parsedTextPrefixLength, string.characters8(), stringLength * sizeof(LChar));
+
+ unsigned start = m_parsedTextPrefixLength + stringLength;
+ unsigned end = start + suffixLength;
+ for (unsigned i = start; i < end; i++)
+ m_dataStart8[i] = suffix[i - start];
+
+ m_dataStart8[length - 1] = '\0';
+
+ m_is8BitSource = true;
+ m_currentCharacter8 = m_dataStart8.get();
+ m_currentCharacter16 = nullptr;
+ setTokenStart<LChar>(m_currentCharacter8);
+ m_lexFunc = &CSSParser::realLex<LChar>;
+ return;
+ }
+
+ m_dataStart16 = std::make_unique<UChar[]>(length);
+ for (unsigned i = 0; i < m_parsedTextPrefixLength; ++i)
+ m_dataStart16[i] = prefix[i];
+
+ ASSERT(stringLength);
+ memcpy(m_dataStart16.get() + m_parsedTextPrefixLength, string.characters16(), stringLength * sizeof(UChar));
+
+ unsigned start = m_parsedTextPrefixLength + stringLength;
+ unsigned end = start + suffixLength;
+ for (unsigned i = start; i < end; i++)
+ m_dataStart16[i] = suffix[i - start];
+
+ m_dataStart16[length - 1] = '\0';
+
+ m_is8BitSource = false;
+ m_currentCharacter8 = nullptr;
+ m_currentCharacter16 = m_dataStart16.get();
+ setTokenStart<UChar>(m_currentCharacter16);
+ m_lexFunc = &CSSParser::realLex<UChar>;
+}
+
+void CSSParser::parseSheet(StyleSheetContents* sheet, const String& string, const TextPosition& textPosition, RuleSourceDataList* ruleSourceDataResult, bool logErrors)
+{
+ setStyleSheet(sheet);
+ m_defaultNamespace = starAtom; // Reset the default namespace.
+ if (ruleSourceDataResult)
+ m_currentRuleDataStack = std::make_unique<RuleSourceDataList>();
+ m_ruleSourceDataResult = ruleSourceDataResult;
+
+ m_logErrors = logErrors && sheet->singleOwnerDocument() && !sheet->baseURL().isEmpty() && sheet->singleOwnerDocument()->page();
+ m_ignoreErrorsInDeclaration = false;
+ m_sheetStartLineNumber = textPosition.m_line.zeroBasedInt();
+ m_sheetStartColumnNumber = textPosition.m_column.zeroBasedInt();
+ m_lineNumber = m_sheetStartLineNumber;
+ m_columnOffsetForLine = 0;
+ setupParser("", string, "");
+ cssyyparse(this);
+ sheet->shrinkToFit();
+ m_currentRuleDataStack.reset();
+ m_ruleSourceDataResult = nullptr;
+ m_rule = nullptr;
+ m_ignoreErrorsInDeclaration = false;
+ m_logErrors = false;
+}
+
+RefPtr<StyleRuleBase> CSSParser::parseRule(StyleSheetContents* sheet, const String& string)
+{
+ setStyleSheet(sheet);
+ m_allowNamespaceDeclarations = false;
+ setupParser("@-webkit-rule{", string, "} ");
+ cssyyparse(this);
+ return m_rule;
+}
+
+RefPtr<StyleKeyframe> CSSParser::parseKeyframeRule(StyleSheetContents* sheet, const String& string)
+{
+ setStyleSheet(sheet);
+ setupParser("@-webkit-keyframe-rule{ ", string, "} ");
+ cssyyparse(this);
+ return m_keyframe;
+}
+
+bool CSSParser::parseSupportsCondition(const String& string)
+{
+ m_supportsCondition = false;
+ // can't use { because tokenizer state switches from supports to initial state when it sees { token.
+ // instead insert one " " (which is WHITESPACE in CSSGrammar.y)
+ setupParser("@-webkit-supports-condition ", string, "} ");
+ cssyyparse(this);
+ return m_supportsCondition;
+}
+
+static inline bool isColorPropertyID(CSSPropertyID propertyId)
+{
+ switch (propertyId) {
+ case CSSPropertyColor:
+ case CSSPropertyBackgroundColor:
+ case CSSPropertyBorderBottomColor:
+ case CSSPropertyBorderLeftColor:
+ case CSSPropertyBorderRightColor:
+ case CSSPropertyBorderTopColor:
+ case CSSPropertyOutlineColor:
+ case CSSPropertyTextLineThroughColor:
+ case CSSPropertyTextOverlineColor:
+ case CSSPropertyTextUnderlineColor:
+ case CSSPropertyWebkitBorderAfterColor:
+ case CSSPropertyWebkitBorderBeforeColor:
+ case CSSPropertyWebkitBorderEndColor:
+ case CSSPropertyWebkitBorderStartColor:
+ case CSSPropertyColumnRuleColor:
+ case CSSPropertyWebkitTextDecorationColor:
+ case CSSPropertyWebkitTextEmphasisColor:
+ case CSSPropertyWebkitTextFillColor:
+ case CSSPropertyWebkitTextStrokeColor:
+ return true;
+ default:
+ return false;
+ }
+}
+
+bool CSSParser::isValidSystemColorValue(CSSValueID valueID)
+{
+ return valueID >= CSSValueAqua && valueID <= CSSValueAppleSystemYellow;
+}
+
+static bool validPrimitiveValueColor(CSSValueID valueID, bool strict = false)
+{
+ return (valueID == CSSValueWebkitText || valueID == CSSValueCurrentcolor || valueID == CSSValueMenu
+ || CSSParser::isValidSystemColorValue(valueID) || valueID == CSSValueAlpha
+ || (valueID >= CSSValueWebkitFocusRingColor && valueID < CSSValueWebkitText && !strict));
+}
+
+static CSSParser::ParseResult parseColorValue(MutableStyleProperties& declaration, CSSPropertyID propertyId, const String& string, bool important, CSSParserMode cssParserMode)
+{
+ ASSERT(!string.isEmpty());
+ bool strict = isStrictParserMode(cssParserMode);
+ if (!isColorPropertyID(propertyId))
+ return CSSParser::ParseResult::Error;
+
+ CSSParserString cssString;
+ cssString.init(string);
+ CSSValueID valueID = cssValueKeywordID(cssString);
+ if (validPrimitiveValueColor(valueID, strict)) {
+ auto value = CSSValuePool::singleton().createIdentifierValue(valueID);
+ return declaration.addParsedProperty(CSSProperty(propertyId, WTFMove(value), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
+ }
+ RGBA32 color;
+ if (!CSSParser::fastParseColor(color, string, strict && string[0] != '#'))
+ return CSSParser::ParseResult::Error;
+
+ auto value = CSSValuePool::singleton().createColorValue(color);
+ return declaration.addParsedProperty(CSSProperty(propertyId, WTFMove(value), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
+}
+
+static inline bool isSimpleLengthPropertyID(CSSPropertyID propertyId, bool& acceptsNegativeNumbers)
+{
+ switch (propertyId) {
+ case CSSPropertyFontSize:
+ case CSSPropertyHeight:
+ case CSSPropertyWidth:
+ case CSSPropertyMinHeight:
+ case CSSPropertyMinWidth:
+ case CSSPropertyPaddingBottom:
+ case CSSPropertyPaddingLeft:
+ case CSSPropertyPaddingRight:
+ case CSSPropertyPaddingTop:
+ case CSSPropertyWebkitLogicalWidth:
+ case CSSPropertyWebkitLogicalHeight:
+ case CSSPropertyWebkitMinLogicalWidth:
+ case CSSPropertyWebkitMinLogicalHeight:
+ case CSSPropertyWebkitPaddingAfter:
+ case CSSPropertyWebkitPaddingBefore:
+ case CSSPropertyWebkitPaddingEnd:
+ case CSSPropertyWebkitPaddingStart:
+#if ENABLE(CSS_GRID_LAYOUT)
+ case CSSPropertyGridColumnGap:
+ case CSSPropertyGridRowGap:
+#endif
+#if ENABLE(CSS_SHAPES)
+ case CSSPropertyWebkitShapeMargin:
+#endif
+ acceptsNegativeNumbers = false;
+ return true;
+ case CSSPropertyBottom:
+ case CSSPropertyCx:
+ case CSSPropertyCy:
+ case CSSPropertyLeft:
+ case CSSPropertyMarginBottom:
+ case CSSPropertyMarginLeft:
+ case CSSPropertyMarginRight:
+ case CSSPropertyMarginTop:
+ case CSSPropertyR:
+ case CSSPropertyRx:
+ case CSSPropertyRy:
+ case CSSPropertyRight:
+ case CSSPropertyTop:
+ case CSSPropertyWebkitMarginAfter:
+ case CSSPropertyWebkitMarginBefore:
+ case CSSPropertyWebkitMarginEnd:
+ case CSSPropertyWebkitMarginStart:
+ case CSSPropertyX:
+ case CSSPropertyY:
+ acceptsNegativeNumbers = true;
+ return true;
+ default:
+ return false;
+ }
+}
+
+template <typename CharacterType>
+static inline bool parseSimpleLength(const CharacterType* characters, unsigned& length, CSSPrimitiveValue::UnitTypes& unit, double& number)
+{
+ if (length > 2 && (characters[length - 2] | 0x20) == 'p' && (characters[length - 1] | 0x20) == 'x') {
+ length -= 2;
+ unit = CSSPrimitiveValue::CSS_PX;
+ } else if (length > 1 && characters[length - 1] == '%') {
+ length -= 1;
+ unit = CSSPrimitiveValue::CSS_PERCENTAGE;
+ }
+
+ // We rely on charactersToDouble for validation as well. The function
+ // will set "ok" to "false" if the entire passed-in character range does
+ // not represent a double.
+ bool ok;
+ number = charactersToDouble(characters, length, &ok);
+ return ok;
+}
+
+static CSSParser::ParseResult parseSimpleLengthValue(MutableStyleProperties& declaration, CSSPropertyID propertyId, const String& string, bool important, CSSParserMode cssParserMode)
+{
+ ASSERT(!string.isEmpty());
+ bool acceptsNegativeNumbers;
+ if (!isSimpleLengthPropertyID(propertyId, acceptsNegativeNumbers))
+ return CSSParser::ParseResult::Error;
+
+ unsigned length = string.length();
+ double number;
+ CSSPrimitiveValue::UnitTypes unit = CSSPrimitiveValue::CSS_NUMBER;
+
+ if (string.is8Bit()) {
+ if (!parseSimpleLength(string.characters8(), length, unit, number))
+ return CSSParser::ParseResult::Error;
+ } else {
+ if (!parseSimpleLength(string.characters16(), length, unit, number))
+ return CSSParser::ParseResult::Error;
+ }
+
+ if (unit == CSSPrimitiveValue::CSS_NUMBER) {
+ if (number && isStrictParserMode(cssParserMode))
+ return CSSParser::ParseResult::Error;
+ unit = CSSPrimitiveValue::CSS_PX;
+ }
+ if (number < 0 && !acceptsNegativeNumbers)
+ return CSSParser::ParseResult::Error;
+ if (std::isinf(number))
+ return CSSParser::ParseResult::Error;
+
+ auto value = CSSValuePool::singleton().createValue(number, unit);
+ return declaration.addParsedProperty(CSSProperty(propertyId, WTFMove(value), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
+}
+
+static inline bool isValidKeywordPropertyAndValue(CSSPropertyID propertyId, int valueID, const CSSParserContext& parserContext, StyleSheetContents* styleSheetContents)
+{
+ if (!valueID)
+ return false;
+
+ switch (propertyId) {
+ case CSSPropertyBorderCollapse: // collapse | separate | inherit
+ if (valueID == CSSValueCollapse || valueID == CSSValueSeparate)
+ return true;
+ break;
+ case CSSPropertyBorderTopStyle: // <border-style> | inherit
+ case CSSPropertyBorderRightStyle: // Defined as: none | hidden | dotted | dashed |
+ case CSSPropertyBorderBottomStyle: // solid | double | groove | ridge | inset | outset
+ case CSSPropertyBorderLeftStyle:
+ case CSSPropertyWebkitBorderAfterStyle:
+ case CSSPropertyWebkitBorderBeforeStyle:
+ case CSSPropertyWebkitBorderEndStyle:
+ case CSSPropertyWebkitBorderStartStyle:
+ case CSSPropertyColumnRuleStyle:
+ if (valueID >= CSSValueNone && valueID <= CSSValueDouble)
+ return true;
+ break;
+ case CSSPropertyBoxSizing:
+ if (valueID == CSSValueBorderBox || valueID == CSSValueContentBox)
+ return true;
+ break;
+ case CSSPropertyCaptionSide: // top | bottom | left | right | inherit
+ if (valueID == CSSValueLeft || valueID == CSSValueRight || valueID == CSSValueTop || valueID == CSSValueBottom)
+ return true;
+ break;
+ case CSSPropertyClear: // none | left | right | both | inherit
+ if (valueID == CSSValueNone || valueID == CSSValueLeft || valueID == CSSValueRight || valueID == CSSValueBoth)
+ return true;
+ break;
+ case CSSPropertyDirection: // ltr | rtl | inherit
+ if (valueID == CSSValueLtr || valueID == CSSValueRtl)
+ return true;
+ break;
+ case CSSPropertyDisplay:
+ // inline | block | list-item | inline-block | table |
+ // inline-table | table-row-group | table-header-group | table-footer-group | table-row |
+ // table-column-group | table-column | table-cell | table-caption | -webkit-box | -webkit-inline-box | none | inherit
+ // flex | -webkit-flex | inline-flex | -webkit-inline-flex | grid | inline-grid | contents
+ if ((valueID >= CSSValueInline && valueID <= CSSValueContents) || valueID == CSSValueNone)
+ return true;
+#if ENABLE(CSS_GRID_LAYOUT)
+ if (parserContext.cssGridLayoutEnabled && (valueID == CSSValueGrid || valueID == CSSValueInlineGrid))
+ return true;
+#endif
+ break;
+
+ case CSSPropertyEmptyCells: // show | hide | inherit
+ if (valueID == CSSValueShow || valueID == CSSValueHide)
+ return true;
+ break;
+ case CSSPropertyFloat: // left | right | none | center (for buggy CSS, maps to none)
+ if (valueID == CSSValueLeft || valueID == CSSValueRight || valueID == CSSValueNone || valueID == CSSValueCenter)
+ return true;
+ break;
+ case CSSPropertyFontStyle: // normal | italic | oblique | inherit
+ if (valueID == CSSValueNormal || valueID == CSSValueItalic || valueID == CSSValueOblique)
+ return true;
+ break;
+ case CSSPropertyImageRendering: // auto | optimizeSpeed | optimizeQuality | -webkit-crisp-edges | -webkit-optimize-contrast | crisp-edges | pixelated
+ // optimizeSpeed and optimizeQuality are deprecated; a user agent must accept them as valid values but must treat them as having the same behavior as pixelated and auto respectively.
+ if (valueID == CSSValueAuto || valueID == CSSValueOptimizespeed || valueID == CSSValueOptimizequality
+ || valueID == CSSValueWebkitCrispEdges || valueID == CSSValueWebkitOptimizeContrast || valueID == CSSValueCrispEdges || valueID == CSSValuePixelated)
+ return true;
+ break;
+ case CSSPropertyListStylePosition: // inside | outside | inherit
+ if (valueID == CSSValueInside || valueID == CSSValueOutside)
+ return true;
+ break;
+ case CSSPropertyListStyleType:
+ // See section CSS_PROP_LIST_STYLE_TYPE of file CSSValueKeywords.in
+ // for the list of supported list-style-types.
+ if ((valueID >= CSSValueDisc && valueID <= CSSValueKatakanaIroha) || valueID == CSSValueNone)
+ return true;
+ break;
+ case CSSPropertyObjectFit:
+ if (valueID == CSSValueFill || valueID == CSSValueContain || valueID == CSSValueCover || valueID == CSSValueNone || valueID == CSSValueScaleDown)
+ return true;
+ break;
+ case CSSPropertyOutlineStyle: // (<border-style> except hidden) | auto | inherit
+ if (valueID == CSSValueAuto || valueID == CSSValueNone || (valueID >= CSSValueInset && valueID <= CSSValueDouble))
+ return true;
+ break;
+ case CSSPropertyOverflowWrap: // normal | break-word
+ case CSSPropertyWordWrap:
+ if (valueID == CSSValueNormal || valueID == CSSValueBreakWord)
+ return true;
+ break;
+#if ENABLE(TOUCH_EVENTS)
+ case CSSPropertyTouchAction: // auto | manipulation
+ if (valueID == CSSValueAuto || valueID == CSSValueManipulation)
+ return true;
+ break;
+#endif
+#if ENABLE(CSS_SCROLL_SNAP)
+ case CSSPropertyWebkitScrollSnapType: // none | mandatory | proximity
+ if (valueID == CSSValueNone || valueID == CSSValueMandatory || valueID == CSSValueProximity)
+ return true;
+ break;
+#endif
+ case CSSPropertyOverflowX: // visible | hidden | scroll | auto | overlay | inherit
+ if (valueID == CSSValueVisible || valueID == CSSValueHidden || valueID == CSSValueScroll || valueID == CSSValueAuto || valueID == CSSValueOverlay)
+ return true;
+ break;
+ case CSSPropertyOverflowY: // visible | hidden | scroll | auto | overlay | inherit | -webkit-paged-x | -webkit-paged-y
+ if (valueID == CSSValueVisible || valueID == CSSValueHidden || valueID == CSSValueScroll || valueID == CSSValueAuto || valueID == CSSValueOverlay || valueID == CSSValueWebkitPagedX || valueID == CSSValueWebkitPagedY)
+ return true;
+ break;
+ case CSSPropertyPageBreakAfter: // auto | always | avoid | left | right | inherit
+ case CSSPropertyPageBreakBefore:
+ case CSSPropertyWebkitColumnBreakAfter:
+ case CSSPropertyWebkitColumnBreakBefore:
+ if (valueID == CSSValueAuto || valueID == CSSValueAlways || valueID == CSSValueAvoid || valueID == CSSValueLeft || valueID == CSSValueRight)
+ return true;
+ break;
+ case CSSPropertyPageBreakInside: // avoid | auto | inherit
+ case CSSPropertyWebkitColumnBreakInside:
+ if (valueID == CSSValueAuto || valueID == CSSValueAvoid)
+ return true;
+ break;
+ case CSSPropertyPointerEvents:
+ // none | visiblePainted | visibleFill | visibleStroke | visible |
+ // painted | fill | stroke | auto | all | inherit
+ if (valueID == CSSValueVisible || valueID == CSSValueNone || valueID == CSSValueAll || valueID == CSSValueAuto || (valueID >= CSSValueVisiblepainted && valueID <= CSSValueStroke))
+ return true;
+ break;
+ case CSSPropertyPosition: // static | relative | absolute | fixed | sticky | inherit
+ if (valueID == CSSValueStatic || valueID == CSSValueRelative || valueID == CSSValueAbsolute || valueID == CSSValueFixed || valueID == CSSValueWebkitSticky)
+ return true;
+ break;
+ case CSSPropertyResize: // none | both | horizontal | vertical | auto
+ if (valueID == CSSValueNone || valueID == CSSValueBoth || valueID == CSSValueHorizontal || valueID == CSSValueVertical || valueID == CSSValueAuto)
+ return true;
+ break;
+ case CSSPropertySpeak: // none | normal | spell-out | digits | literal-punctuation | no-punctuation | inherit
+ if (valueID == CSSValueNone || valueID == CSSValueNormal || valueID == CSSValueSpellOut || valueID == CSSValueDigits || valueID == CSSValueLiteralPunctuation || valueID == CSSValueNoPunctuation)
+ return true;
+ break;
+ case CSSPropertyTableLayout: // auto | fixed | inherit
+ if (valueID == CSSValueAuto || valueID == CSSValueFixed)
+ return true;
+ break;
+ case CSSPropertyTextLineThroughMode:
+ case CSSPropertyTextOverlineMode:
+ case CSSPropertyTextUnderlineMode:
+ if (valueID == CSSValueContinuous || valueID == CSSValueSkipWhiteSpace)
+ return true;
+ break;
+ case CSSPropertyTextLineThroughStyle:
+ case CSSPropertyTextOverlineStyle:
+ case CSSPropertyTextUnderlineStyle:
+ if (valueID == CSSValueNone || valueID == CSSValueSolid || valueID == CSSValueDouble || valueID == CSSValueDashed || valueID == CSSValueDotDash || valueID == CSSValueDotDotDash || valueID == CSSValueWave)
+ return true;
+ break;
+ case CSSPropertyTextOverflow: // clip | ellipsis
+ if (valueID == CSSValueClip || valueID == CSSValueEllipsis)
+ return true;
+ break;
+ case CSSPropertyTextRendering: // auto | optimizeSpeed | optimizeLegibility | geometricPrecision
+ if (valueID == CSSValueAuto || valueID == CSSValueOptimizespeed || valueID == CSSValueOptimizelegibility || valueID == CSSValueGeometricprecision)
+ return true;
+ break;
+ case CSSPropertyTextTransform: // capitalize | uppercase | lowercase | none | inherit
+ if ((valueID >= CSSValueCapitalize && valueID <= CSSValueLowercase) || valueID == CSSValueNone)
+ return true;
+ break;
+ case CSSPropertyVisibility: // visible | hidden | collapse | inherit
+ if (valueID == CSSValueVisible || valueID == CSSValueHidden || valueID == CSSValueCollapse)
+ return true;
+ break;
+ case CSSPropertyWebkitAppearance:
+ if ((valueID >= CSSValueCheckbox && valueID <= CSSValueCapsLockIndicator) || valueID == CSSValueNone)
+ return true;
+ break;
+ case CSSPropertyWebkitBackfaceVisibility:
+ if (valueID == CSSValueVisible || valueID == CSSValueHidden)
+ return true;
+ break;
+#if ENABLE(CSS_COMPOSITING)
+ case CSSPropertyMixBlendMode:
+ if (valueID == CSSValueNormal || valueID == CSSValueMultiply || valueID == CSSValueScreen
+ || valueID == CSSValueOverlay || valueID == CSSValueDarken || valueID == CSSValueLighten || valueID == CSSValueColorDodge
+ || valueID == CSSValueColorBurn || valueID == CSSValueHardLight || valueID == CSSValueSoftLight || valueID == CSSValueDifference
+ || valueID == CSSValueExclusion || valueID == CSSValuePlusDarker || valueID == CSSValuePlusLighter)
+ return true;
+ break;
+ case CSSPropertyIsolation:
+ if (valueID == CSSValueAuto || valueID == CSSValueIsolate)
+ return true;
+ break;
+#endif
+ case CSSPropertyWebkitBorderFit:
+ if (valueID == CSSValueBorder || valueID == CSSValueLines)
+ return true;
+ break;
+ case CSSPropertyWebkitBoxAlign:
+ if (valueID == CSSValueStretch || valueID == CSSValueStart || valueID == CSSValueEnd || valueID == CSSValueCenter || valueID == CSSValueBaseline)
+ return true;
+ break;
+#if ENABLE(CSS_BOX_DECORATION_BREAK)
+ case CSSPropertyWebkitBoxDecorationBreak:
+ if (valueID == CSSValueClone || valueID == CSSValueSlice)
+ return true;
+ break;
+#endif
+ case CSSPropertyWebkitBoxDirection:
+ if (valueID == CSSValueNormal || valueID == CSSValueReverse)
+ return true;
+ break;
+ case CSSPropertyWebkitBoxLines:
+ if (valueID == CSSValueSingle || valueID == CSSValueMultiple)
+ return true;
+ break;
+ case CSSPropertyWebkitBoxOrient:
+ if (valueID == CSSValueHorizontal || valueID == CSSValueVertical || valueID == CSSValueInlineAxis || valueID == CSSValueBlockAxis)
+ return true;
+ break;
+ case CSSPropertyWebkitBoxPack:
+ if (valueID == CSSValueStart || valueID == CSSValueEnd || valueID == CSSValueCenter || valueID == CSSValueJustify)
+ return true;
+ break;
+ case CSSPropertyColumnFill:
+ if (valueID == CSSValueAuto || valueID == CSSValueBalance)
+ return true;
+ break;
+ case CSSPropertyFlexDirection:
+ if (valueID == CSSValueRow || valueID == CSSValueRowReverse || valueID == CSSValueColumn || valueID == CSSValueColumnReverse)
+ return true;
+ break;
+ case CSSPropertyFlexWrap:
+ if (valueID == CSSValueNowrap || valueID == CSSValueWrap || valueID == CSSValueWrapReverse)
+ return true;
+ break;
+ case CSSPropertyWebkitFontKerning:
+ if (valueID == CSSValueAuto || valueID == CSSValueNormal || valueID == CSSValueNone)
+ return true;
+ break;
+ case CSSPropertyWebkitFontSmoothing:
+ if (valueID == CSSValueAuto || valueID == CSSValueNone || valueID == CSSValueAntialiased || valueID == CSSValueSubpixelAntialiased)
+ return true;
+ break;
+ case CSSPropertyWebkitHyphens:
+ if (valueID == CSSValueNone || valueID == CSSValueManual || valueID == CSSValueAuto)
+ return true;
+ break;
+ case CSSPropertyWebkitLineAlign:
+ if (valueID == CSSValueNone || valueID == CSSValueEdges)
+ return true;
+ break;
+ case CSSPropertyWebkitLineBreak: // auto | loose | normal | strict | after-white-space
+ if (valueID == CSSValueAuto || valueID == CSSValueLoose || valueID == CSSValueNormal || valueID == CSSValueStrict || valueID == CSSValueAfterWhiteSpace)
+ return true;
+ break;
+ case CSSPropertyWebkitLineSnap:
+ if (valueID == CSSValueNone || valueID == CSSValueBaseline || valueID == CSSValueContain)
+ return true;
+ break;
+ case CSSPropertyWebkitMarginAfterCollapse:
+ case CSSPropertyWebkitMarginBeforeCollapse:
+ case CSSPropertyWebkitMarginBottomCollapse:
+ case CSSPropertyWebkitMarginTopCollapse:
+ if (valueID == CSSValueCollapse || valueID == CSSValueSeparate || valueID == CSSValueDiscard)
+ return true;
+ break;
+ case CSSPropertyWebkitMarqueeDirection:
+ if (valueID == CSSValueForwards || valueID == CSSValueBackwards || valueID == CSSValueAhead || valueID == CSSValueReverse || valueID == CSSValueLeft || valueID == CSSValueRight || valueID == CSSValueDown
+ || valueID == CSSValueUp || valueID == CSSValueAuto)
+ return true;
+ break;
+ case CSSPropertyWebkitMarqueeStyle:
+ if (valueID == CSSValueNone || valueID == CSSValueSlide || valueID == CSSValueScroll || valueID == CSSValueAlternate)
+ return true;
+ break;
+ case CSSPropertyWebkitNbspMode: // normal | space
+ if (valueID == CSSValueNormal || valueID == CSSValueSpace)
+ return true;
+ break;
+#if ENABLE(ACCELERATED_OVERFLOW_SCROLLING)
+ case CSSPropertyWebkitOverflowScrolling:
+ if (valueID == CSSValueAuto || valueID == CSSValueTouch)
+ return true;
+ break;
+#endif
+ case CSSPropertyWebkitPrintColorAdjust:
+ if (valueID == CSSValueExact || valueID == CSSValueEconomy)
+ return true;
+ break;
+#if ENABLE(CSS_REGIONS)
+ case CSSPropertyWebkitRegionBreakAfter:
+ case CSSPropertyWebkitRegionBreakBefore:
+ if (valueID == CSSValueAuto || valueID == CSSValueAlways || valueID == CSSValueAvoid || valueID == CSSValueLeft || valueID == CSSValueRight)
+ return true;
+ break;
+ case CSSPropertyWebkitRegionBreakInside:
+ if (valueID == CSSValueAuto || valueID == CSSValueAvoid)
+ return true;
+ break;
+ case CSSPropertyWebkitRegionFragment:
+ if (valueID == CSSValueAuto || valueID == CSSValueBreak)
+ return true;
+ break;
+#endif
+ case CSSPropertyWebkitRtlOrdering:
+ if (valueID == CSSValueLogical || valueID == CSSValueVisual)
+ return true;
+ break;
+
+ case CSSPropertyWebkitRubyPosition:
+ if (valueID == CSSValueBefore || valueID == CSSValueAfter || valueID == CSSValueInterCharacter)
+ return true;
+ break;
+
+#if ENABLE(CSS3_TEXT)
+ case CSSPropertyWebkitTextAlignLast:
+ // auto | start | end | left | right | center | justify
+ if ((valueID >= CSSValueLeft && valueID <= CSSValueJustify) || valueID == CSSValueStart || valueID == CSSValueEnd || valueID == CSSValueAuto)
+ return true;
+ break;
+#endif // CSS3_TEXT
+ case CSSPropertyWebkitTextCombine:
+ if (valueID == CSSValueNone || valueID == CSSValueHorizontal)
+ return true;
+ break;
+#if ENABLE(CSS3_TEXT)
+ case CSSPropertyWebkitTextJustify:
+ // auto | none | inter-word | distribute
+ if (valueID == CSSValueInterWord || valueID == CSSValueDistribute || valueID == CSSValueAuto || valueID == CSSValueNone)
+ return true;
+ break;
+#endif // CSS3_TEXT
+ case CSSPropertyWebkitTextSecurity:
+ // disc | circle | square | none | inherit
+ if (valueID == CSSValueDisc || valueID == CSSValueCircle || valueID == CSSValueSquare || valueID == CSSValueNone)
+ return true;
+ break;
+#if ENABLE(IOS_TEXT_AUTOSIZING)
+ case CSSPropertyWebkitTextSizeAdjust:
+ if (!parserContext.textAutosizingEnabled)
+ return false;
+
+ if (valueID == CSSValueAuto || valueID == CSSValueNone)
+ return true;
+ break;
+#endif
+ case CSSPropertyTransformStyle:
+ case CSSPropertyWebkitTransformStyle:
+ if (valueID == CSSValueFlat || valueID == CSSValuePreserve3d)
+ return true;
+ break;
+ case CSSPropertyWebkitUserDrag: // auto | none | element
+ if (valueID == CSSValueAuto || valueID == CSSValueNone || valueID == CSSValueElement)
+ return true;
+ break;
+ case CSSPropertyWebkitUserModify: // read-only | read-write
+ if (valueID == CSSValueReadOnly || valueID == CSSValueReadWrite || valueID == CSSValueReadWritePlaintextOnly) {
+ if (styleSheetContents)
+ styleSheetContents->parserSetUsesStyleBasedEditability();
+ return true;
+ }
+ break;
+ case CSSPropertyWebkitUserSelect: // auto | none | text | all
+ if (valueID == CSSValueAuto || valueID == CSSValueNone || valueID == CSSValueText)
+ return true;
+ if (valueID == CSSValueAll) {
+ if (styleSheetContents)
+ styleSheetContents->parserSetUsesStyleBasedEditability();
+ return true;
+ }
+ break;
+ case CSSPropertyWebkitWritingMode:
+ if (valueID >= CSSValueHorizontalTb && valueID <= CSSValueHorizontalBt)
+ return true;
+ break;
+ case CSSPropertyWhiteSpace: // normal | pre | nowrap | inherit
+ if (valueID == CSSValueNormal || valueID == CSSValuePre || valueID == CSSValuePreWrap || valueID == CSSValuePreLine || valueID == CSSValueNowrap)
+ return true;
+ break;
+ case CSSPropertyWordBreak: // normal | break-all | keep-all | break-word (this is a custom extension)
+ if (valueID == CSSValueNormal || valueID == CSSValueBreakAll || valueID == CSSValueKeepAll || valueID == CSSValueBreakWord)
+ return true;
+ break;
+#if ENABLE(CSS_TRAILING_WORD)
+ case CSSPropertyAppleTrailingWord: // auto | -apple-partially-balanced
+ if (valueID == CSSValueAuto || valueID == CSSValueWebkitPartiallyBalanced)
+ return true;
+ break;
+#endif
+ case CSSPropertyFontVariantPosition: // normal | sub | super
+ if (valueID == CSSValueNormal || valueID == CSSValueSub || valueID == CSSValueSuper)
+ return true;
+ break;
+ case CSSPropertyFontVariantCaps: // normal | small-caps | all-small-caps | petite-caps | all-petite-caps | unicase | titling-caps
+ if (valueID == CSSValueNormal || valueID == CSSValueSmallCaps || valueID == CSSValueAllSmallCaps || valueID == CSSValuePetiteCaps || valueID == CSSValueAllPetiteCaps || valueID == CSSValueUnicase || valueID == CSSValueTitlingCaps)
+ return true;
+ break;
+ case CSSPropertyFontVariantAlternates: // We only support the normal and historical-forms values.
+ if (valueID == CSSValueNormal || valueID == CSSValueHistoricalForms)
+ return true;
+ break;
+
+ case CSSPropertyBreakAfter:
+ case CSSPropertyBreakBefore:
+ // auto | avoid | left | right | recto | verso | column | page | region | avoid-page | avoid-column | avoid-region
+ if (valueID == CSSValueAuto || valueID == CSSValueAvoid || valueID == CSSValueLeft || valueID == CSSValueRight
+ || valueID == CSSValueRecto || valueID == CSSValueVerso || valueID == CSSValueColumn || valueID == CSSValuePage
+ || valueID == CSSValueRegion || valueID == CSSValueAvoidColumn || valueID == CSSValueAvoidPage || valueID == CSSValueAvoidRegion)
+ return true;
+ break;
+ case CSSPropertyBreakInside:
+ // auto | avoid | avoid-page | avoid-column | avoid-region
+ if (valueID == CSSValueAuto || valueID == CSSValueAvoid || valueID == CSSValueAvoidColumn || valueID == CSSValueAvoidPage || valueID == CSSValueAvoidRegion)
+ return true;
+ break;
+ default:
+ ASSERT_NOT_REACHED();
+ return false;
+ }
+#if !ENABLE(CSS_GRID_LAYOUT)
+ UNUSED_PARAM(parserContext);
+#endif
+ return false;
+}
+
+static inline bool isKeywordPropertyID(CSSPropertyID propertyId)
+{
+ switch (propertyId) {
+ case CSSPropertyBorderBottomStyle:
+ case CSSPropertyBorderCollapse:
+ case CSSPropertyBorderLeftStyle:
+ case CSSPropertyBorderRightStyle:
+ case CSSPropertyBorderTopStyle:
+ case CSSPropertyBoxSizing:
+ case CSSPropertyBreakAfter:
+ case CSSPropertyBreakBefore:
+ case CSSPropertyBreakInside:
+ case CSSPropertyCaptionSide:
+ case CSSPropertyClear:
+ case CSSPropertyDirection:
+ case CSSPropertyDisplay:
+ case CSSPropertyEmptyCells:
+ case CSSPropertyFloat:
+ case CSSPropertyFontStyle:
+ case CSSPropertyImageRendering:
+ case CSSPropertyListStylePosition:
+ case CSSPropertyListStyleType:
+ case CSSPropertyObjectFit:
+ case CSSPropertyOutlineStyle:
+ case CSSPropertyOverflowWrap:
+ case CSSPropertyOverflowX:
+ case CSSPropertyOverflowY:
+ case CSSPropertyPageBreakAfter:
+ case CSSPropertyPageBreakBefore:
+ case CSSPropertyPageBreakInside:
+ case CSSPropertyPointerEvents:
+ case CSSPropertyPosition:
+ case CSSPropertyResize:
+ case CSSPropertySpeak:
+ case CSSPropertyTableLayout:
+ case CSSPropertyTextLineThroughMode:
+ case CSSPropertyTextLineThroughStyle:
+ case CSSPropertyTextOverflow:
+ case CSSPropertyTextOverlineMode:
+ case CSSPropertyTextOverlineStyle:
+ case CSSPropertyTextRendering:
+ case CSSPropertyTextTransform:
+ case CSSPropertyTextUnderlineMode:
+ case CSSPropertyTextUnderlineStyle:
+ case CSSPropertyVisibility:
+ case CSSPropertyWebkitAppearance:
+#if ENABLE(CSS_COMPOSITING)
+ case CSSPropertyMixBlendMode:
+ case CSSPropertyIsolation:
+#endif
+ case CSSPropertyWebkitBackfaceVisibility:
+ case CSSPropertyWebkitBorderAfterStyle:
+ case CSSPropertyWebkitBorderBeforeStyle:
+ case CSSPropertyWebkitBorderEndStyle:
+ case CSSPropertyWebkitBorderFit:
+ case CSSPropertyWebkitBorderStartStyle:
+ case CSSPropertyWebkitBoxAlign:
+#if ENABLE(CSS_BOX_DECORATION_BREAK)
+ case CSSPropertyWebkitBoxDecorationBreak:
+#endif
+ case CSSPropertyWebkitBoxDirection:
+ case CSSPropertyWebkitBoxLines:
+ case CSSPropertyWebkitBoxOrient:
+ case CSSPropertyWebkitBoxPack:
+ case CSSPropertyWebkitColumnBreakAfter:
+ case CSSPropertyWebkitColumnBreakBefore:
+ case CSSPropertyWebkitColumnBreakInside:
+ case CSSPropertyColumnFill:
+ case CSSPropertyColumnRuleStyle:
+ case CSSPropertyFlexDirection:
+ case CSSPropertyFlexWrap:
+ case CSSPropertyWebkitFontKerning:
+ case CSSPropertyWebkitFontSmoothing:
+ case CSSPropertyWebkitHyphens:
+ case CSSPropertyWebkitLineAlign:
+ case CSSPropertyWebkitLineBreak:
+ case CSSPropertyWebkitLineSnap:
+ case CSSPropertyWebkitMarginAfterCollapse:
+ case CSSPropertyWebkitMarginBeforeCollapse:
+ case CSSPropertyWebkitMarginBottomCollapse:
+ case CSSPropertyWebkitMarginTopCollapse:
+ case CSSPropertyWebkitMarqueeDirection:
+ case CSSPropertyWebkitMarqueeStyle:
+ case CSSPropertyWebkitNbspMode:
+#if ENABLE(ACCELERATED_OVERFLOW_SCROLLING)
+ case CSSPropertyWebkitOverflowScrolling:
+#endif
+ case CSSPropertyWebkitPrintColorAdjust:
+#if ENABLE(CSS_REGIONS)
+ case CSSPropertyWebkitRegionBreakAfter:
+ case CSSPropertyWebkitRegionBreakBefore:
+ case CSSPropertyWebkitRegionBreakInside:
+ case CSSPropertyWebkitRegionFragment:
+#endif
+ case CSSPropertyWebkitRtlOrdering:
+ case CSSPropertyWebkitRubyPosition:
+#if ENABLE(CSS3_TEXT)
+ case CSSPropertyWebkitTextAlignLast:
+#endif // CSS3_TEXT
+ case CSSPropertyWebkitTextCombine:
+#if ENABLE(CSS3_TEXT)
+ case CSSPropertyWebkitTextJustify:
+#endif // CSS3_TEXT
+ case CSSPropertyWebkitTextSecurity:
+ case CSSPropertyTransformStyle:
+ case CSSPropertyWebkitTransformStyle:
+ case CSSPropertyWebkitUserDrag:
+ case CSSPropertyWebkitUserModify:
+ case CSSPropertyWebkitUserSelect:
+ case CSSPropertyWebkitWritingMode:
+ case CSSPropertyWhiteSpace:
+ case CSSPropertyWordBreak:
+ case CSSPropertyWordWrap:
+#if ENABLE(TOUCH_EVENTS)
+ case CSSPropertyTouchAction:
+#endif
+#if ENABLE(CSS_SCROLL_SNAP)
+ case CSSPropertyWebkitScrollSnapType:
+#endif
+#if ENABLE(CSS_TRAILING_WORD)
+ case CSSPropertyAppleTrailingWord:
+#endif
+ case CSSPropertyFontVariantPosition:
+ case CSSPropertyFontVariantCaps:
+ case CSSPropertyFontVariantAlternates:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool isUniversalKeyword(const String& string)
+{
+ // These keywords can be used for all properties.
+ return equalLettersIgnoringASCIICase(string, "initial")
+ || equalLettersIgnoringASCIICase(string, "inherit")
+ || equalLettersIgnoringASCIICase(string, "unset")
+ || equalLettersIgnoringASCIICase(string, "revert");
+}
+
+static CSSParser::ParseResult parseKeywordValue(MutableStyleProperties& declaration, CSSPropertyID propertyId, const String& string, bool important, const CSSParserContext& parserContext, StyleSheetContents* styleSheetContents)
+{
+ ASSERT(!string.isEmpty());
+
+ if (!isKeywordPropertyID(propertyId)) {
+ if (!isUniversalKeyword(string))
+ return CSSParser::ParseResult::Error;
+
+ // Don't try to parse initial/inherit/unset/revert shorthands; return an error so the caller will use the full CSS parser.
+ if (shorthandForProperty(propertyId).length())
+ return CSSParser::ParseResult::Error;
+ }
+
+ CSSParserString cssString;
+ cssString.init(string);
+ CSSValueID valueID = cssValueKeywordID(cssString);
+
+ if (!valueID)
+ return CSSParser::ParseResult::Error;
+
+ RefPtr<CSSValue> value;
+ if (valueID == CSSValueInherit)
+ value = CSSValuePool::singleton().createInheritedValue();
+ else if (valueID == CSSValueInitial)
+ value = CSSValuePool::singleton().createExplicitInitialValue();
+ else if (valueID == CSSValueUnset)
+ value = CSSValuePool::singleton().createUnsetValue();
+ else if (valueID == CSSValueRevert)
+ value = CSSValuePool::singleton().createRevertValue();
+ else if (isValidKeywordPropertyAndValue(propertyId, valueID, parserContext, styleSheetContents))
+ value = CSSValuePool::singleton().createIdentifierValue(valueID);
+ else
+ return CSSParser::ParseResult::Error;
+
+ return declaration.addParsedProperty(CSSProperty(propertyId, value.releaseNonNull(), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
+}
+
+template <typename CharacterType>
+static bool parseTransformTranslateArguments(WebKitCSSTransformValue& transformValue, CharacterType* characters, unsigned length, unsigned start, unsigned expectedCount)
+{
+ auto& cssValuePool = CSSValuePool::singleton();
+ while (expectedCount) {
+ size_t end = WTF::find(characters, length, expectedCount == 1 ? ')' : ',', start);
+ if (end == notFound || (expectedCount == 1 && end != length - 1))
+ return false;
+ unsigned argumentLength = end - start;
+ CSSPrimitiveValue::UnitTypes unit = CSSPrimitiveValue::CSS_NUMBER;
+ double number;
+ if (!parseSimpleLength(characters + start, argumentLength, unit, number))
+ return false;
+ if (unit != CSSPrimitiveValue::CSS_PX && (number || unit != CSSPrimitiveValue::CSS_NUMBER))
+ return false;
+ transformValue.append(cssValuePool.createValue(number, CSSPrimitiveValue::CSS_PX));
+ start = end + 1;
+ --expectedCount;
+ }
+ return true;
+}
+
+static CSSParser::ParseResult parseTranslateTransformValue(MutableStyleProperties& properties, CSSPropertyID propertyID, const String& string, bool important)
+{
+ if (propertyID != CSSPropertyTransform)
+ return CSSParser::ParseResult::Error;
+
+ static const unsigned shortestValidTransformStringLength = 12;
+ static const unsigned likelyMultipartTransformStringLengthCutoff = 32;
+ if (string.length() < shortestValidTransformStringLength || string.length() > likelyMultipartTransformStringLengthCutoff)
+ return CSSParser::ParseResult::Error;
+
+ if (!string.startsWith("translate", false))
+ return CSSParser::ParseResult::Error;
+
+ UChar c9 = toASCIILower(string[9]);
+ UChar c10 = toASCIILower(string[10]);
+
+ WebKitCSSTransformValue::TransformOperationType transformType;
+ unsigned expectedArgumentCount = 1;
+ unsigned argumentStart = 11;
+ if (c9 == 'x' && c10 == '(')
+ transformType = WebKitCSSTransformValue::TranslateXTransformOperation;
+ else if (c9 == 'y' && c10 == '(')
+ transformType = WebKitCSSTransformValue::TranslateYTransformOperation;
+ else if (c9 == 'z' && c10 == '(')
+ transformType = WebKitCSSTransformValue::TranslateZTransformOperation;
+ else if (c9 == '(') {
+ transformType = WebKitCSSTransformValue::TranslateTransformOperation;
+ expectedArgumentCount = 2;
+ argumentStart = 10;
+ } else if (c9 == '3' && c10 == 'd' && string[11] == '(') {
+ transformType = WebKitCSSTransformValue::Translate3DTransformOperation;
+ expectedArgumentCount = 3;
+ argumentStart = 12;
+ } else
+ return CSSParser::ParseResult::Error;
+
+ auto transformValue = WebKitCSSTransformValue::create(transformType);
+ bool success;
+ if (string.is8Bit())
+ success = parseTransformTranslateArguments(transformValue, string.characters8(), string.length(), argumentStart, expectedArgumentCount);
+ else
+ success = parseTransformTranslateArguments(transformValue, string.characters16(), string.length(), argumentStart, expectedArgumentCount);
+ if (!success)
+ return CSSParser::ParseResult::Error;
+
+ auto result = CSSValueList::createSpaceSeparated();
+ result->append(WTFMove(transformValue));
+ return properties.addParsedProperty(CSSProperty(CSSPropertyTransform, WTFMove(result), important)) ? CSSParser::ParseResult::Changed : CSSParser::ParseResult::Unchanged;
+}
+
+RefPtr<CSSValueList> CSSParser::parseFontFaceValue(const AtomicString& string)
+{
+ if (string.isEmpty())
+ return nullptr;
+
+ auto valueList = CSSValueList::createCommaSeparated();
+
+ Vector<String> familyNames;
+ string.string().split(',', true, familyNames);
+
+ auto& cssValuePool = CSSValuePool::singleton();
+ for (auto& familyName : familyNames) {
+ String stripped = stripLeadingAndTrailingHTMLSpaces(familyName);
+ if (stripped.isEmpty())
+ return nullptr;
+
+ RefPtr<CSSValue> value;
+ for (auto propertyID : { CSSValueSerif, CSSValueSansSerif, CSSValueCursive, CSSValueFantasy, CSSValueMonospace, CSSValueWebkitBody }) {
+ if (equalIgnoringASCIICase(stripped, getValueName(propertyID))) {
+ value = cssValuePool.createIdentifierValue(propertyID);
+ break;
+ }
+ }
+ if (!value)
+ value = cssValuePool.createFontFamilyValue(stripped);
+ valueList->append(value.releaseNonNull());
+ }
+
+ return WTFMove(valueList);
+}
+
+CSSParser::ParseResult CSSParser::parseValue(MutableStyleProperties& declaration, CSSPropertyID propertyID, const String& string, bool important, CSSParserMode cssParserMode, StyleSheetContents* contextStyleSheet)
+{
+ ASSERT(!string.isEmpty());
+ CSSParser::ParseResult result = parseSimpleLengthValue(declaration, propertyID, string, important, cssParserMode);
+ if (result != ParseResult::Error)
+ return result;
+
+ result = parseColorValue(declaration, propertyID, string, important, cssParserMode);
+ if (result != ParseResult::Error)
+ return result;
+
+ CSSParserContext context(cssParserMode);
+ if (contextStyleSheet) {
+ context = contextStyleSheet->parserContext();
+ context.mode = cssParserMode;
+ }
+
+ result = parseKeywordValue(declaration, propertyID, string, important, context, contextStyleSheet);
+ if (result != ParseResult::Error)
+ return result;
+
+ result = parseTranslateTransformValue(declaration, propertyID, string, important);
+ if (result != ParseResult::Error)
+ return result;
+
+ CSSParser parser(context);
+ return parser.parseValue(declaration, propertyID, string, important, contextStyleSheet);
+}
+
+CSSParser::ParseResult CSSParser::parseCustomPropertyValue(MutableStyleProperties& declaration, const AtomicString& propertyName, const String& string, bool important, CSSParserMode cssParserMode, StyleSheetContents* contextStyleSheet)
+{
+ CSSParserContext context(cssParserMode);
+ if (contextStyleSheet) {
+ context = contextStyleSheet->parserContext();
+ context.mode = cssParserMode;
+ }
+
+ CSSParser parser(context);
+ parser.setCustomPropertyName(propertyName);
+ return parser.parseValue(declaration, CSSPropertyCustom, string, important, contextStyleSheet);
+}
+
+CSSParser::ParseResult CSSParser::parseValue(MutableStyleProperties& declaration, CSSPropertyID propertyID, const String& string, bool important, StyleSheetContents* contextStyleSheet)
+{
+ setStyleSheet(contextStyleSheet);
+
+ setupParser("@-webkit-value{", string, "} ");
+
+ m_id = propertyID;
+ m_important = important;
+
+ cssyyparse(this);
+
+ m_rule = nullptr;
+
+ ParseResult result = ParseResult::Error;
+
+ if (!m_parsedProperties.isEmpty()) {
+ result = declaration.addParsedProperties(m_parsedProperties) ? ParseResult::Changed : ParseResult::Unchanged;
+ clearProperties();
+ }
+
+ return result;
+}
+
+// The color will only be changed when string contains a valid CSS color, so callers
+// can set it to a default color and ignore the boolean result.
+bool CSSParser::parseColor(RGBA32& color, const String& string, bool strict)
+{
+ if (string.isEmpty())
+ return false;
+
+ // First try creating a color specified by name, rgba(), rgb() or "#" syntax.
+ if (fastParseColor(color, string, strict))
+ return true;
+
+ CSSParser parser(CSSStrictMode);
+
+ // In case the fast-path parser didn't understand the color, try the full parser.
+ if (!parser.parseColor(string))
+ return false;
+
+ CSSValue& value = *parser.m_parsedProperties.first().value();
+ if (!is<CSSPrimitiveValue>(value))
+ return false;
+
+ CSSPrimitiveValue& primitiveValue = downcast<CSSPrimitiveValue>(value);
+ if (!primitiveValue.isRGBColor())
+ return false;
+
+ color = primitiveValue.getRGBA32Value();
+ return true;
+}
+
+bool CSSParser::parseColor(const String& string)
+{
+ setupParser("@-webkit-decls{color:", string, "} ");
+ cssyyparse(this);
+ m_rule = nullptr;
+
+ return !m_parsedProperties.isEmpty() && m_parsedProperties.first().id() == CSSPropertyColor;
+}
+
+bool CSSParser::parseSystemColor(RGBA32& color, const String& string, Document* document)
+{
+ if (!document || !document->page())
+ return false;
+
+ CSSParserString cssColor;
+ cssColor.init(string);
+ CSSValueID id = cssValueKeywordID(cssColor);
+ if (!validPrimitiveValueColor(id))
+ return false;
+
+ Color parsedColor = document->page()->theme().systemColor(id);
+ if (!parsedColor.isValid())
+ return false;
+
+ color = parsedColor.rgb();
+ return true;
+}
+
+void CSSParser::parseSelector(const String& string, CSSSelectorList& selectorList)
+{
+ m_selectorListForParseSelector = &selectorList;
+
+ setupParser("@-webkit-selector{", string, "}");
+
+ cssyyparse(this);
+
+ m_selectorListForParseSelector = nullptr;
+}
+
+Ref<ImmutableStyleProperties> CSSParser::parseInlineStyleDeclaration(const String& string, Element* element)
+{
+ CSSParserContext context = element->document().elementSheet().contents().parserContext();
+ context.mode = strictToCSSParserMode(element->isHTMLElement() && !element->document().inQuirksMode());
+ return CSSParser(context).parseDeclaration(string, &element->document().elementSheet().contents());
+}
+
+Ref<ImmutableStyleProperties> CSSParser::parseDeclaration(const String& string, StyleSheetContents* contextStyleSheet)
+{
+ setStyleSheet(contextStyleSheet);
+
+ setupParser("@-webkit-decls{", string, "} ");
+ cssyyparse(this);
+ m_rule = nullptr;
+
+ Ref<ImmutableStyleProperties> style = createStyleProperties();
+ clearProperties();
+ return style;
+}
+
+
+bool CSSParser::parseDeclaration(MutableStyleProperties& declaration, const String& string, RefPtr<CSSRuleSourceData>&& ruleSourceData, StyleSheetContents* contextStyleSheet)
+{
+ // Length of the "@-webkit-decls{" prefix.
+ static const unsigned prefixLength = 15;
+
+ setStyleSheet(contextStyleSheet);
+
+ if (ruleSourceData) {
+ m_currentRuleDataStack = std::make_unique<RuleSourceDataList>();
+ m_currentRuleDataStack->append(*ruleSourceData);
+ }
+
+ setupParser("@-webkit-decls{", string, "} ");
+ cssyyparse(this);
+ m_rule = nullptr;
+
+ bool ok = false;
+ if (!m_parsedProperties.isEmpty()) {
+ ok = true;
+ declaration.addParsedProperties(m_parsedProperties);
+ clearProperties();
+ }
+
+ if (ruleSourceData) {
+ ASSERT(m_currentRuleDataStack->size() == 1);
+ ruleSourceData->ruleBodyRange.start = 0;
+ ruleSourceData->ruleBodyRange.end = string.length();
+ for (size_t i = 0, size = ruleSourceData->styleSourceData->propertyData.size(); i < size; ++i) {
+ CSSPropertySourceData& propertyData = ruleSourceData->styleSourceData->propertyData.at(i);
+ propertyData.range.start -= prefixLength;
+ propertyData.range.end -= prefixLength;
+ }
+
+ fixUnparsedPropertyRanges(*ruleSourceData);
+ m_currentRuleDataStack.reset();
+ }
+
+ return ok;
+}
+
+std::unique_ptr<MediaQuery> CSSParser::parseMediaQuery(const String& string)
+{
+ if (string.isEmpty())
+ return nullptr;
+
+ ASSERT(!m_mediaQuery);
+
+ // can't use { because tokenizer state switches from mediaquery to initial state when it sees { token.
+ // instead insert one " " (which is WHITESPACE in CSSGrammar.y)
+ setupParser("@-webkit-mediaquery ", string, "} ");
+ cssyyparse(this);
+
+ return WTFMove(m_mediaQuery);
+}
+
+Vector<CSSParser::SourceSize> CSSParser::parseSizesAttribute(StringView string)
+{
+ Vector<SourceSize> result;
+
+ if (string.isEmpty())
+ return result;
+
+ ASSERT(!m_sourceSizeList);
+
+ setupParser("@-webkit-sizesattr ", string, "}");
+ cssyyparse(this);
+
+ if (!m_sourceSizeList)
+ return result;
+
+ result = WTFMove(*m_sourceSizeList);
+ m_sourceSizeList = nullptr;
+ return result;
+}
+
+// FIXME(141289): The following two constructors are only needed because of a bug in MSVC 2013 (and prior).
+// We should remove this code as soon as a Visual Studio update that fixes this problem is released.
+
+CSSParser::SourceSize::SourceSize(CSSParser::SourceSize&& original)
+ : expression(WTFMove(original.expression))
+ , length(WTFMove(original.length))
+{
+}
+
+CSSParser::SourceSize::SourceSize(MediaQueryExpression&& expression, Ref<CSSValue>&& value)
+ : expression(WTFMove(expression))
+ , length(WTFMove(value))
+{
+}
+
+Optional<CSSParser::SourceSize> CSSParser::sourceSize(MediaQueryExpression&& expression, CSSParserValue& parserValue)
+{
+ RefPtr<CSSValue> value;
+ if (isCalculation(parserValue)) {
+ auto* args = parserValue.function->args.get();
+ if (args && args->size())
+ value = CSSCalcValue::create(parserValue.function->name, *args, CalculationRangeNonNegative);
+ }
+ if (!value)
+ value = parserValue.createCSSValue();
+ destroy(parserValue);
+ if (!value)
+ return Nullopt;
+ // FIXME: Calling the constructor explicitly here to work around an MSVC bug.
+ // For other compilers, we did not need to define the constructors and we could use aggregate initialization syntax.
+ return SourceSize(WTFMove(expression), value.releaseNonNull());
+}
+
+static inline void filterProperties(bool important, const ParsedPropertyVector& input, Vector<CSSProperty, 256>& output, size_t& unusedEntries, std::bitset<numCSSProperties>& seenProperties, HashSet<AtomicString>& seenCustomProperties)
+{
+ // Add properties in reverse order so that highest priority definitions are reached first. Duplicate definitions can then be ignored when found.
+ for (int i = input.size() - 1; i >= 0; --i) {
+ const CSSProperty& property = input[i];
+ if (property.isImportant() != important)
+ continue;
+
+ if (property.id() == CSSPropertyCustom) {
+ if (property.value()) {
+ auto& name = downcast<CSSCustomPropertyValue>(*property.value()).name();
+ if (!seenCustomProperties.add(name).isNewEntry)
+ continue;
+ output[--unusedEntries] = property;
+ }
+ continue;
+ }
+
+ const unsigned propertyIDIndex = property.id() - firstCSSProperty;
+ ASSERT(propertyIDIndex < seenProperties.size());
+ if (seenProperties[propertyIDIndex])
+ continue;
+ seenProperties.set(propertyIDIndex);
+ output[--unusedEntries] = property;
+ }
+}
+
+Ref<ImmutableStyleProperties> CSSParser::createStyleProperties()
+{
+ std::bitset<numCSSProperties> seenProperties;
+ size_t unusedEntries = m_parsedProperties.size();
+ Vector<CSSProperty, 256> results(unusedEntries);
+
+ // Important properties have higher priority, so add them first. Duplicate definitions can then be ignored when found.
+ HashSet<AtomicString> seenCustomProperties;
+ filterProperties(true, m_parsedProperties, results, unusedEntries, seenProperties, seenCustomProperties);
+ filterProperties(false, m_parsedProperties, results, unusedEntries, seenProperties, seenCustomProperties);
+ if (unusedEntries)
+ results.remove(0, unusedEntries);
+
+ return ImmutableStyleProperties::create(results.data(), results.size(), m_context.mode);
+}
+
+void CSSParser::addProperty(CSSPropertyID propId, RefPtr<CSSValue>&& value, bool important, bool implicit)
+{
+ // This property doesn't belong to a shorthand or is a CSS variable (which will be resolved later).
+ if (!m_currentShorthand) {
+ m_parsedProperties.append(CSSProperty(propId, WTFMove(value), important, false, CSSPropertyInvalid, m_implicitShorthand || implicit));
+ return;
+ }
+
+ auto shorthands = matchingShorthandsForLonghand(propId);
+ if (shorthands.size() == 1)
+ m_parsedProperties.append(CSSProperty(propId, WTFMove(value), important, true, CSSPropertyInvalid, m_implicitShorthand || implicit));
+ else
+ m_parsedProperties.append(CSSProperty(propId, WTFMove(value), important, true, indexOfShorthandForLonghand(m_currentShorthand, shorthands), m_implicitShorthand || implicit));
+}
+
+void CSSParser::rollbackLastProperties(int num)
+{
+ ASSERT(num >= 0);
+ ASSERT(m_parsedProperties.size() >= static_cast<unsigned>(num));
+ m_parsedProperties.shrink(m_parsedProperties.size() - num);
+}
+
+void CSSParser::clearProperties()
+{
+ m_parsedProperties.clear();
+ m_numParsedPropertiesBeforeMarginBox = invalidParsedPropertiesCount;
+}
+
+URL CSSParser::completeURL(const CSSParserContext& context, const String& url)
+{
+ if (url.isNull())
+ return URL();
+ if (context.charset.isEmpty())
+ return URL(context.baseURL, url);
+ return URL(context.baseURL, url, context.charset);
+}
+
+URL CSSParser::completeURL(const String& url) const
+{
+ return completeURL(m_context, url);
+}
+
+bool CSSParser::validateCalculationUnit(ValueWithCalculation& valueWithCalculation, Units unitFlags)
+{
+ bool mustBeNonNegative = unitFlags & FNonNeg;
+
+ RefPtr<CSSCalcValue> calculation;
+ if (valueWithCalculation.calculation()) {
+ // The calculation value was already parsed so we reuse it. However, we may need to update its range.
+ calculation = valueWithCalculation.calculation();
+ calculation->setPermittedValueRange(mustBeNonNegative ? CalculationRangeNonNegative : CalculationRangeAll);
+ } else {
+ valueWithCalculation.setCalculation(parseCalculation(valueWithCalculation, mustBeNonNegative ? CalculationRangeNonNegative : CalculationRangeAll));
+ calculation = valueWithCalculation.calculation();
+ if (!calculation)
+ return false;
+ }
+
+ bool isValid = false;
+ switch (calculation->category()) {
+ case CalcNumber:
+ isValid = (unitFlags & FNumber);
+ if (!isValid && (unitFlags & FInteger) && calculation->isInt())
+ isValid = true;
+ if (!isValid && (unitFlags & FPositiveInteger) && calculation->isInt() && calculation->isPositive())
+ isValid = true;
+ break;
+ case CalcLength:
+ isValid = (unitFlags & FLength);
+ break;
+ case CalcPercent:
+ isValid = (unitFlags & FPercent);
+ break;
+ case CalcPercentLength:
+ isValid = (unitFlags & FPercent) && (unitFlags & FLength);
+ break;
+ case CalcPercentNumber:
+ isValid = (unitFlags & FPercent) && (unitFlags & FNumber);
+ break;
+ case CalcAngle:
+ isValid = (unitFlags & FAngle);
+ break;
+ case CalcTime:
+ isValid = (unitFlags & FTime);
+ break;
+ case CalcFrequency:
+ isValid = (unitFlags & FFrequency);
+ break;
+ case CalcOther:
+ break;
+ }
+
+ return isValid;
+}
+
+inline bool CSSParser::shouldAcceptUnitLessValues(CSSParserValue& value, Units unitFlags, CSSParserMode cssParserMode)
+{
+ // Qirks mode and svg presentation attributes accept unit less values.
+ return (unitFlags & (FLength | FAngle | FTime)) && (!value.fValue || cssParserMode == CSSQuirksMode || cssParserMode == SVGAttributeMode);
+}
+
+bool CSSParser::validateUnit(ValueWithCalculation& valueWithCalculation, Units unitFlags, CSSParserMode cssParserMode)
+{
+ if (isCalculation(valueWithCalculation))
+ return validateCalculationUnit(valueWithCalculation, unitFlags);
+
+ bool b = false;
+ switch (valueWithCalculation.value().unit) {
+ case CSSPrimitiveValue::CSS_NUMBER:
+ b = (unitFlags & FNumber);
+ if (!b && shouldAcceptUnitLessValues(valueWithCalculation, unitFlags, cssParserMode)) {
+ valueWithCalculation.value().unit = (unitFlags & FLength) ? CSSPrimitiveValue::CSS_PX :
+ ((unitFlags & FAngle) ? CSSPrimitiveValue::CSS_DEG : CSSPrimitiveValue::CSS_MS);
+ b = true;
+ }
+ if (!b && (unitFlags & FInteger) && valueWithCalculation.value().isInt)
+ b = true;
+ if (!b && (unitFlags & FPositiveInteger) && valueWithCalculation.value().isInt && valueWithCalculation.value().fValue > 0)
+ b = true;
+ break;
+ case CSSPrimitiveValue::CSS_PERCENTAGE:
+ b = (unitFlags & FPercent);
+ break;
+ case CSSParserValue::Q_EMS:
+ case CSSPrimitiveValue::CSS_EMS:
+ case CSSPrimitiveValue::CSS_REMS:
+ case CSSPrimitiveValue::CSS_CHS:
+ case CSSPrimitiveValue::CSS_EXS:
+ case CSSPrimitiveValue::CSS_PX:
+ case CSSPrimitiveValue::CSS_CM:
+ case CSSPrimitiveValue::CSS_MM:
+ case CSSPrimitiveValue::CSS_IN:
+ case CSSPrimitiveValue::CSS_PT:
+ case CSSPrimitiveValue::CSS_PC:
+ case CSSPrimitiveValue::CSS_VW:
+ case CSSPrimitiveValue::CSS_VH:
+ case CSSPrimitiveValue::CSS_VMIN:
+ case CSSPrimitiveValue::CSS_VMAX:
+ b = (unitFlags & FLength);
+ break;
+ case CSSPrimitiveValue::CSS_MS:
+ case CSSPrimitiveValue::CSS_S:
+ b = (unitFlags & FTime);
+ break;
+ case CSSPrimitiveValue::CSS_DEG:
+ case CSSPrimitiveValue::CSS_RAD:
+ case CSSPrimitiveValue::CSS_GRAD:
+ case CSSPrimitiveValue::CSS_TURN:
+ b = (unitFlags & FAngle);
+ break;
+#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
+ case CSSPrimitiveValue::CSS_DPPX:
+ case CSSPrimitiveValue::CSS_DPI:
+ case CSSPrimitiveValue::CSS_DPCM:
+ b = (unitFlags & FResolution);
+ break;
+#endif
+ case CSSPrimitiveValue::CSS_HZ:
+ case CSSPrimitiveValue::CSS_KHZ:
+ case CSSPrimitiveValue::CSS_DIMENSION:
+ default:
+ break;
+ }
+ if (b && unitFlags & FNonNeg && valueWithCalculation.value().fValue < 0)
+ b = false;
+ if (b && std::isinf(valueWithCalculation.value().fValue))
+ b = false;
+ return b;
+}
+
+inline Ref<CSSPrimitiveValue> CSSParser::createPrimitiveNumericValue(ValueWithCalculation& valueWithCalculation)
+{
+ if (valueWithCalculation.calculation())
+ return CSSPrimitiveValue::create(valueWithCalculation.calculation());
+
+ CSSParserValue& value = valueWithCalculation;
+#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
+ ASSERT((value.unit >= CSSPrimitiveValue::CSS_NUMBER && value.unit <= CSSPrimitiveValue::CSS_KHZ)
+ || (value.unit >= CSSPrimitiveValue::CSS_TURN && value.unit <= CSSPrimitiveValue::CSS_CHS)
+ || (value.unit >= CSSPrimitiveValue::CSS_VW && value.unit <= CSSPrimitiveValue::CSS_VMAX)
+ || (value.unit >= CSSPrimitiveValue::CSS_DPPX && value.unit <= CSSPrimitiveValue::CSS_DPCM));
+#else
+ ASSERT((value.unit >= CSSPrimitiveValue::CSS_NUMBER && value.unit <= CSSPrimitiveValue::CSS_KHZ)
+ || (value.unit >= CSSPrimitiveValue::CSS_TURN && value.unit <= CSSPrimitiveValue::CSS_CHS)
+ || (value.unit >= CSSPrimitiveValue::CSS_VW && value.unit <= CSSPrimitiveValue::CSS_VMAX));
+#endif
+ return CSSValuePool::singleton().createValue(value.fValue, static_cast<CSSPrimitiveValue::UnitTypes>(value.unit));
+}
+
+inline Ref<CSSPrimitiveValue> CSSParser::createPrimitiveStringValue(CSSParserValue& value)
+{
+ ASSERT(value.unit == CSSPrimitiveValue::CSS_STRING || value.unit == CSSPrimitiveValue::CSS_IDENT);
+ return CSSValuePool::singleton().createValue(value.string, CSSPrimitiveValue::CSS_STRING);
+}
+
+static inline bool isComma(CSSParserValue* value)
+{
+ return value && value->unit == CSSParserValue::Operator && value->iValue == ',';
+}
+
+static inline bool isForwardSlashOperator(CSSParserValue& value)
+{
+ return value.unit == CSSParserValue::Operator && value.iValue == '/';
+}
+
+bool CSSParser::isValidSize(ValueWithCalculation& valueWithCalculation)
+{
+ int id = valueWithCalculation.value().id;
+ if (id == CSSValueIntrinsic || id == CSSValueMinIntrinsic || id == CSSValueWebkitMinContent || id == CSSValueWebkitMaxContent || id == CSSValueWebkitFillAvailable || id == CSSValueWebkitFitContent)
+ return true;
+ return !id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg);
+}
+
+inline RefPtr<CSSPrimitiveValue> CSSParser::parseValidPrimitive(CSSValueID identifier, ValueWithCalculation& valueWithCalculation)
+{
+ if (identifier)
+ return CSSValuePool::singleton().createIdentifierValue(identifier);
+
+ if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_STRING)
+ return createPrimitiveStringValue(valueWithCalculation);
+ if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_NUMBER && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_KHZ)
+ return createPrimitiveNumericValue(valueWithCalculation);
+ if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_TURN && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_CHS)
+ return createPrimitiveNumericValue(valueWithCalculation);
+ if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_VW && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_VMAX)
+ return createPrimitiveNumericValue(valueWithCalculation);
+#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
+ if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_DPPX && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_DPCM)
+ return createPrimitiveNumericValue(valueWithCalculation);
+#endif
+ if (valueWithCalculation.value().unit >= CSSParserValue::Q_EMS)
+ return CSSPrimitiveValue::createAllowingMarginQuirk(valueWithCalculation.value().fValue, CSSPrimitiveValue::CSS_EMS);
+ if (valueWithCalculation.calculation())
+ return CSSPrimitiveValue::create(valueWithCalculation.calculation());
+
+ return nullptr;
+}
+
+void CSSParser::addExpandedPropertyForValue(CSSPropertyID propId, Ref<CSSValue>&& value, bool important)
+{
+ const StylePropertyShorthand& shorthand = shorthandForProperty(propId);
+ unsigned shorthandLength = shorthand.length();
+ if (!shorthandLength) {
+ addProperty(propId, WTFMove(value), important);
+ return;
+ }
+
+ ShorthandScope scope(this, propId);
+ const CSSPropertyID* longhands = shorthand.properties();
+ for (unsigned i = 0; i < shorthandLength; ++i)
+ addProperty(longhands[i], value.copyRef(), important);
+}
+
+RefPtr<CSSValue> CSSParser::parseVariableDependentValue(CSSPropertyID propID, const CSSVariableDependentValue& dependentValue, const CustomPropertyValueMap& customProperties, TextDirection direction, WritingMode writingMode)
+{
+ m_valueList.reset(new CSSParserValueList());
+ if (!dependentValue.valueList().buildParserValueListSubstitutingVariables(m_valueList.get(), customProperties))
+ return nullptr;
+
+ CSSPropertyID dependentValuePropertyID = dependentValue.propertyID();
+ if (CSSProperty::isDirectionAwareProperty(dependentValuePropertyID))
+ dependentValuePropertyID = CSSProperty::resolveDirectionAwareProperty(dependentValuePropertyID, direction, writingMode);
+
+ if (!parseValue(dependentValuePropertyID, false))
+ return nullptr;
+
+ for (auto& property : m_parsedProperties) {
+ if (property.id() == propID)
+ return property.value();
+ }
+ return nullptr;
+}
+
+static bool isImageSetFunctionValue(const CSSParserValue& value)
+{
+ return value.unit == CSSParserValue::Function && (equalLettersIgnoringASCIICase(value.function->name, "image-set(") || equalLettersIgnoringASCIICase(value.function->name, "-webkit-image-set("));
+}
+
+bool CSSParser::parseValue(CSSPropertyID propId, bool important)
+{
+ if (!m_valueList || !m_valueList->current())
+ return false;
+
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ CSSValueID id = valueWithCalculation.value().id;
+
+ if (propId == CSSPropertyCustom)
+ return parseCustomPropertyDeclaration(important, id);
+
+ if (m_valueList->containsVariables()) {
+ auto valueList = CSSValueList::createFromParserValueList(*m_valueList);
+ addExpandedPropertyForValue(propId, CSSVariableDependentValue::create(WTFMove(valueList), propId), important);
+ return true;
+ }
+
+ auto& cssValuePool = CSSValuePool::singleton();
+ unsigned num = inShorthand() ? 1 : m_valueList->size();
+
+ if (id == CSSValueInherit) {
+ if (num != 1)
+ return false;
+ addExpandedPropertyForValue(propId, cssValuePool.createInheritedValue(), important);
+ return true;
+ }
+ else if (id == CSSValueInitial) {
+ if (num != 1)
+ return false;
+ addExpandedPropertyForValue(propId, cssValuePool.createExplicitInitialValue(), important);
+ return true;
+ } else if (id == CSSValueUnset) {
+ if (num != 1)
+ return false;
+ addExpandedPropertyForValue(propId, cssValuePool.createUnsetValue(), important);
+ return true;
+ } else if (id == CSSValueRevert) {
+ if (num != 1)
+ return false;
+ addExpandedPropertyForValue(propId, cssValuePool.createRevertValue(), important);
+ return true;
+ }
+
+ if (propId == CSSPropertyAll)
+ return false; // "all" doesn't allow you to specify anything other than inherit/initial/unset.
+
+ if (isKeywordPropertyID(propId)) {
+ if (!isValidKeywordPropertyAndValue(propId, id, m_context, m_styleSheet))
+ return false;
+ if (m_valueList->next() && !inShorthand())
+ return false;
+ addProperty(propId, cssValuePool.createIdentifierValue(id), important);
+ return true;
+ }
+
+#if ENABLE(CSS_DEVICE_ADAPTATION)
+ if (inViewport())
+ return parseViewportProperty(propId, important);
+#endif
+
+ bool validPrimitive = false;
+ RefPtr<CSSValue> parsedValue;
+
+ switch (propId) {
+ case CSSPropertySize: // <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ]
+ return parseSize(propId, important);
+
+ case CSSPropertyQuotes: // [<string> <string>]+ | none | inherit
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else
+ return parseQuotes(propId, important);
+ break;
+ case CSSPropertyUnicodeBidi: // normal | embed | bidi-override | isolate | isolate-override | plaintext | inherit
+ if (id == CSSValueNormal
+ || id == CSSValueEmbed
+ || id == CSSValueBidiOverride
+ || id == CSSValueWebkitIsolate
+ || id == CSSValueWebkitIsolateOverride
+ || id == CSSValueWebkitPlaintext)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyContent: // [ <string> | <uri> | <counter> | attr(X) | open-quote |
+ // close-quote | no-open-quote | no-close-quote ]+ | inherit
+ return parseContent(propId, important);
+
+ case CSSPropertyAlt: // [ <string> | attr(X) ]
+ return parseAlt(propId, important);
+
+ case CSSPropertyClip: // <shape> | auto | inherit
+ if (id == CSSValueAuto)
+ validPrimitive = true;
+ else if (valueWithCalculation.value().unit == CSSParserValue::Function)
+ return parseClipShape(propId, important);
+ break;
+
+ /* Start of supported CSS properties with validation. This is needed for parseShorthand to work
+ * correctly and allows optimization in WebCore::applyRule(..)
+ */
+ case CSSPropertyOverflow: {
+ ShorthandScope scope(this, propId);
+ if (num != 1 || !parseValue(CSSPropertyOverflowY, important))
+ return false;
+
+ RefPtr<CSSValue> overflowXValue;
+
+ // FIXME: -webkit-paged-x or -webkit-paged-y only apply to overflow-y. If this value has been
+ // set using the shorthand, then for now overflow-x will default to auto, but once we implement
+ // pagination controls, it should default to hidden. If the overflow-y value is anything but
+ // paged-x or paged-y, then overflow-x and overflow-y should have the same value.
+ if (id == CSSValueWebkitPagedX || id == CSSValueWebkitPagedY)
+ overflowXValue = cssValuePool.createIdentifierValue(CSSValueAuto);
+ else
+ overflowXValue = m_parsedProperties.last().value();
+ addProperty(CSSPropertyOverflowX, WTFMove(overflowXValue), important);
+ return true;
+ }
+
+ case CSSPropertyTextAlign:
+ // left | right | center | justify | -webkit-left | -webkit-right | -webkit-center | -webkit-match-parent
+ // | start | end | inherit | -webkit-auto (converted to start)
+ // NOTE: <string> is not supported.
+ if ((id >= CSSValueWebkitAuto && id <= CSSValueWebkitMatchParent) || id == CSSValueStart || id == CSSValueEnd)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyFontWeight: { // normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | inherit
+ if (m_valueList->size() != 1)
+ return false;
+ return parseFontWeight(important);
+ }
+
+ case CSSPropertyFontSynthesis: // none | [ weight || style ]
+ return parseFontSynthesis(important);
+
+ case CSSPropertyBorderSpacing: {
+ if (num == 1) {
+ ShorthandScope scope(this, CSSPropertyBorderSpacing);
+ if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important))
+ return false;
+ CSSValue* value = m_parsedProperties.last().value();
+ addProperty(CSSPropertyWebkitBorderVerticalSpacing, value, important);
+ return true;
+ }
+ else if (num == 2) {
+ ShorthandScope scope(this, CSSPropertyBorderSpacing);
+ if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important) || !parseValue(CSSPropertyWebkitBorderVerticalSpacing, important))
+ return false;
+ return true;
+ }
+ return false;
+ }
+ case CSSPropertyWebkitBorderHorizontalSpacing:
+ case CSSPropertyWebkitBorderVerticalSpacing:
+ validPrimitive = validateUnit(valueWithCalculation, FLength | FNonNeg);
+ break;
+ case CSSPropertyOutlineColor: // <color> | invert | inherit
+ // Outline color has "invert" as additional keyword.
+ // Also, we want to allow the special focus color even in strict parsing mode.
+ if (id == CSSValueInvert || id == CSSValueWebkitFocusRingColor) {
+ validPrimitive = true;
+ break;
+ }
+ FALLTHROUGH;
+ case CSSPropertyBackgroundColor: // <color> | inherit
+ case CSSPropertyBorderTopColor: // <color> | inherit
+ case CSSPropertyBorderRightColor:
+ case CSSPropertyBorderBottomColor:
+ case CSSPropertyBorderLeftColor:
+ case CSSPropertyWebkitBorderStartColor:
+ case CSSPropertyWebkitBorderEndColor:
+ case CSSPropertyWebkitBorderBeforeColor:
+ case CSSPropertyWebkitBorderAfterColor:
+ case CSSPropertyColor: // <color> | inherit
+ case CSSPropertyTextLineThroughColor: // CSS3 text decoration colors
+ case CSSPropertyTextUnderlineColor:
+ case CSSPropertyTextOverlineColor:
+ case CSSPropertyColumnRuleColor:
+ case CSSPropertyWebkitTextDecorationColor:
+ case CSSPropertyWebkitTextEmphasisColor:
+ case CSSPropertyWebkitTextFillColor:
+ case CSSPropertyWebkitTextStrokeColor:
+ if (id == CSSValueWebkitText)
+ validPrimitive = true; // Always allow this, even when strict parsing is on,
+ // since we use this in our UA sheets.
+ else if (id == CSSValueCurrentcolor)
+ validPrimitive = true;
+ else if (isValidSystemColorValue(id) || id == CSSValueMenu
+ || (id >= CSSValueWebkitFocusRingColor && id < CSSValueWebkitText && inQuirksMode())) {
+ validPrimitive = true;
+ } else {
+ parsedValue = parseColor();
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+
+ case CSSPropertyCursor: {
+ // Grammar defined by CSS3 UI and modified by CSS4 images:
+ // [ [<image> [<x> <y>]?,]*
+ // [ auto | crosshair | default | pointer | progress | move | e-resize | ne-resize |
+ // nw-resize | n-resize | se-resize | sw-resize | s-resize | w-resize | ew-resize |
+ // ns-resize | nesw-resize | nwse-resize | col-resize | row-resize | text | wait | help |
+ // vertical-text | cell | context-menu | alias | copy | no-drop | not-allowed |
+ // zoom-in | zoom-out | all-scroll | -webkit-grab | -webkit-grabbing | -webkit-zoom-in |
+ // -webkit-zoom-out ] ] | inherit
+ RefPtr<CSSValueList> list;
+ CSSParserValue* value = &valueWithCalculation.value();
+ while (value) {
+ RefPtr<CSSValue> image;
+ if (value->unit == CSSPrimitiveValue::CSS_URI) {
+ String uri = value->string;
+ if (!uri.isNull())
+ image = CSSImageValue::create(completeURL(uri));
+#if ENABLE(MOUSE_CURSOR_SCALE)
+ } else if (isImageSetFunctionValue(*value)) {
+ image = parseImageSet();
+ if (!image)
+ break;
+#endif
+ } else
+ break;
+
+ Vector<int> coords;
+ value = m_valueList->next();
+ while (value && value->unit == CSSPrimitiveValue::CSS_NUMBER) {
+ coords.append(int(value->fValue));
+ value = m_valueList->next();
+ }
+ bool hasHotSpot = false;
+ IntPoint hotSpot(-1, -1);
+ int nrcoords = coords.size();
+ if (nrcoords > 0 && nrcoords != 2)
+ return false;
+ if (nrcoords == 2) {
+ hasHotSpot = true;
+ hotSpot = IntPoint(coords[0], coords[1]);
+ }
+
+ if (!list)
+ list = CSSValueList::createCommaSeparated();
+
+ if (image)
+ list->append(CSSCursorImageValue::create(image.releaseNonNull(), hasHotSpot, hotSpot));
+
+ if ((inStrictMode() && !value) || (value && !(value->unit == CSSParserValue::Operator && value->iValue == ',')))
+ return false;
+ value = m_valueList->next(); // comma
+ }
+ if (list) {
+ if (!value) {
+ // no value after url list (MSIE 5 compatibility)
+ if (list->length() != 1)
+ return false;
+ } else if (inQuirksMode() && value->id == CSSValueHand) // MSIE 5 compatibility :/
+ list->append(cssValuePool.createIdentifierValue(CSSValuePointer));
+ else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitZoomOut) || value->id == CSSValueCopy || value->id == CSSValueNone)
+ list->append(cssValuePool.createIdentifierValue(value->id));
+ m_valueList->next();
+ parsedValue = WTFMove(list);
+ break;
+ } else if (value) {
+ id = value->id;
+ if (inQuirksMode() && value->id == CSSValueHand) {
+ // MSIE 5 compatibility :/
+ id = CSSValuePointer;
+ validPrimitive = true;
+ } else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitZoomOut) || value->id == CSSValueCopy || value->id == CSSValueNone)
+ validPrimitive = true;
+ } else {
+ ASSERT_NOT_REACHED();
+ return false;
+ }
+ break;
+ }
+
+#if ENABLE(CURSOR_VISIBILITY)
+ case CSSPropertyWebkitCursorVisibility:
+ if (id == CSSValueAuto || id == CSSValueAutoHide)
+ validPrimitive = true;
+ break;
+#endif
+
+ case CSSPropertyBackgroundAttachment:
+ case CSSPropertyBackgroundBlendMode:
+ case CSSPropertyBackgroundClip:
+ case CSSPropertyWebkitBackgroundClip:
+ case CSSPropertyWebkitBackgroundComposite:
+ case CSSPropertyBackgroundImage:
+ case CSSPropertyBackgroundOrigin:
+ case CSSPropertyWebkitBackgroundOrigin:
+ case CSSPropertyBackgroundPosition:
+ case CSSPropertyBackgroundPositionX:
+ case CSSPropertyBackgroundPositionY:
+ case CSSPropertyBackgroundSize:
+ case CSSPropertyWebkitBackgroundSize:
+ case CSSPropertyBackgroundRepeat:
+ case CSSPropertyBackgroundRepeatX:
+ case CSSPropertyBackgroundRepeatY:
+ case CSSPropertyWebkitMaskClip:
+ case CSSPropertyWebkitMaskComposite:
+ case CSSPropertyWebkitMaskImage:
+ case CSSPropertyWebkitMaskOrigin:
+ case CSSPropertyWebkitMaskPosition:
+ case CSSPropertyWebkitMaskPositionX:
+ case CSSPropertyWebkitMaskPositionY:
+ case CSSPropertyWebkitMaskSize:
+ case CSSPropertyWebkitMaskSourceType:
+ case CSSPropertyWebkitMaskRepeat:
+ case CSSPropertyWebkitMaskRepeatX:
+ case CSSPropertyWebkitMaskRepeatY:
+ {
+ RefPtr<CSSValue> val1;
+ RefPtr<CSSValue> val2;
+ CSSPropertyID propId1, propId2;
+ bool result = false;
+ if (parseFillProperty(propId, propId1, propId2, val1, val2)) {
+ std::unique_ptr<ShorthandScope> shorthandScope;
+ if (propId == CSSPropertyBackgroundPosition ||
+ propId == CSSPropertyBackgroundRepeat ||
+ propId == CSSPropertyWebkitMaskPosition ||
+ propId == CSSPropertyWebkitMaskRepeat) {
+ shorthandScope = std::make_unique<ShorthandScope>(this, propId);
+ }
+ addProperty(propId1, val1.releaseNonNull(), important);
+ if (val2)
+ addProperty(propId2, val2.releaseNonNull(), important);
+ result = true;
+ }
+ m_implicitShorthand = false;
+ return result;
+ }
+ case CSSPropertyListStyleImage: // <uri> | none | inherit
+ case CSSPropertyBorderImageSource:
+ case CSSPropertyWebkitMaskBoxImageSource:
+ if (id == CSSValueNone) {
+ parsedValue = cssValuePool.createIdentifierValue(CSSValueNone);
+ m_valueList->next();
+ } else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_URI) {
+ parsedValue = CSSImageValue::create(completeURL(valueWithCalculation.value().string));
+ m_valueList->next();
+ } else if (isGeneratedImageValue(valueWithCalculation)) {
+ if (parseGeneratedImage(*m_valueList, parsedValue))
+ m_valueList->next();
+ else
+ return false;
+ } else if (isImageSetFunctionValue(valueWithCalculation.value())) {
+ parsedValue = parseImageSet();
+ if (!parsedValue)
+ return false;
+ m_valueList->next();
+ }
+ break;
+
+ case CSSPropertyWebkitTextStrokeWidth:
+ case CSSPropertyOutlineWidth: // <border-width> | inherit
+ case CSSPropertyBorderTopWidth: //// <border-width> | inherit
+ case CSSPropertyBorderRightWidth: // Which is defined as
+ case CSSPropertyBorderBottomWidth: // thin | medium | thick | <length>
+ case CSSPropertyBorderLeftWidth:
+ case CSSPropertyWebkitBorderStartWidth:
+ case CSSPropertyWebkitBorderEndWidth:
+ case CSSPropertyWebkitBorderBeforeWidth:
+ case CSSPropertyWebkitBorderAfterWidth:
+ case CSSPropertyColumnRuleWidth:
+ if (id == CSSValueThin || id == CSSValueMedium || id == CSSValueThick)
+ validPrimitive = true;
+ else
+ validPrimitive = validateUnit(valueWithCalculation, FLength | FNonNeg);
+ break;
+
+ case CSSPropertyLetterSpacing: // normal | <length> | inherit
+ if (id == CSSValueNormal)
+ validPrimitive = true;
+ else
+ validPrimitive = validateUnit(valueWithCalculation, FLength);
+ break;
+
+ case CSSPropertyWordSpacing: // normal | <length> | <percentage> | inherit
+ if (id == CSSValueNormal)
+ validPrimitive = true;
+ else
+ validPrimitive = validateUnit(valueWithCalculation, FLength | FPercent);
+ break;
+
+ case CSSPropertyTextIndent:
+ parsedValue = parseTextIndent();
+ break;
+
+ case CSSPropertyPaddingTop: //// <padding-width> | inherit
+ case CSSPropertyPaddingRight: // Which is defined as
+ case CSSPropertyPaddingBottom: // <length> | <percentage>
+ case CSSPropertyPaddingLeft: ////
+ case CSSPropertyWebkitPaddingStart:
+ case CSSPropertyWebkitPaddingEnd:
+ case CSSPropertyWebkitPaddingBefore:
+ case CSSPropertyWebkitPaddingAfter:
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg));
+ break;
+
+ case CSSPropertyMaxWidth:
+ case CSSPropertyWebkitMaxLogicalWidth:
+ case CSSPropertyMaxHeight:
+ case CSSPropertyWebkitMaxLogicalHeight:
+ validPrimitive = (id == CSSValueNone || isValidSize(valueWithCalculation));
+ break;
+
+ case CSSPropertyMinWidth:
+ case CSSPropertyWebkitMinLogicalWidth:
+ case CSSPropertyMinHeight:
+ case CSSPropertyWebkitMinLogicalHeight:
+ validPrimitive = id == CSSValueAuto || isValidSize(valueWithCalculation);
+ break;
+
+ case CSSPropertyWidth:
+ case CSSPropertyWebkitLogicalWidth:
+ case CSSPropertyHeight:
+ case CSSPropertyWebkitLogicalHeight:
+ validPrimitive = (id == CSSValueAuto || isValidSize(valueWithCalculation));
+ break;
+
+ case CSSPropertyFontSize:
+ return parseFontSize(important);
+
+ case CSSPropertyVerticalAlign:
+ // baseline | sub | super | top | text-top | middle | bottom | text-bottom |
+ // <percentage> | <length> | inherit
+
+ if (id >= CSSValueBaseline && id <= CSSValueWebkitBaselineMiddle)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent));
+ break;
+
+ case CSSPropertyBottom: // <length> | <percentage> | auto | inherit
+ case CSSPropertyLeft: // <length> | <percentage> | auto | inherit
+ case CSSPropertyRight: // <length> | <percentage> | auto | inherit
+ case CSSPropertyTop: // <length> | <percentage> | auto | inherit
+ case CSSPropertyMarginTop: //// <margin-width> | inherit
+ case CSSPropertyMarginRight: // Which is defined as
+ case CSSPropertyMarginBottom: // <length> | <percentage> | auto | inherit
+ case CSSPropertyMarginLeft: ////
+ case CSSPropertyWebkitMarginStart:
+ case CSSPropertyWebkitMarginEnd:
+ case CSSPropertyWebkitMarginBefore:
+ case CSSPropertyWebkitMarginAfter:
+ if (id == CSSValueAuto)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent));
+ break;
+
+ case CSSPropertyZIndex: // auto | <integer> | inherit
+ if (id == CSSValueAuto)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FInteger, CSSQuirksMode));
+ break;
+
+ case CSSPropertyOrphans: // <integer> | inherit | auto (We've added support for auto for backwards compatibility)
+ case CSSPropertyWidows: // <integer> | inherit | auto (Ditto)
+ if (id == CSSValueAuto)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FPositiveInteger, CSSQuirksMode));
+ break;
+
+ case CSSPropertyLineHeight:
+ return parseLineHeight(important);
+ case CSSPropertyCounterIncrement: // [ <identifier> <integer>? ]+ | none | inherit
+ if (id != CSSValueNone)
+ return parseCounter(propId, 1, important);
+ validPrimitive = true;
+ break;
+ case CSSPropertyCounterReset: // [ <identifier> <integer>? ]+ | none | inherit
+ if (id != CSSValueNone)
+ return parseCounter(propId, 0, important);
+ validPrimitive = true;
+ break;
+ case CSSPropertyFontFamily:
+ // [[ <family-name> | <generic-family> ],]* [<family-name> | <generic-family>] | inherit
+ {
+ parsedValue = parseFontFamily();
+ break;
+ }
+
+ case CSSPropertyWebkitTextDecoration:
+ // [ <text-decoration-line> || <text-decoration-style> || <text-decoration-color> ] | inherit
+ return parseShorthand(CSSPropertyWebkitTextDecoration, webkitTextDecorationShorthand(), important);
+
+ case CSSPropertyTextDecoration:
+ case CSSPropertyWebkitTextDecorationsInEffect:
+ case CSSPropertyWebkitTextDecorationLine:
+ // none | [ underline || overline || line-through || blink ] | inherit
+ return parseTextDecoration(propId, important);
+
+ case CSSPropertyWebkitTextDecorationStyle:
+ // solid | double | dotted | dashed | wavy
+ if (id == CSSValueSolid || id == CSSValueDouble || id == CSSValueDotted || id == CSSValueDashed || id == CSSValueWavy)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyWebkitTextDecorationSkip:
+ // none | [ objects || spaces || ink || edges || box-decoration ]
+ return parseTextDecorationSkip(important);
+
+ case CSSPropertyWebkitTextUnderlinePosition:
+ // auto | alphabetic | under
+ return parseTextUnderlinePosition(important);
+
+ case CSSPropertyZoom:
+ // normal | reset | document | <number> | <percentage> | inherit
+ if (id == CSSValueNormal || id == CSSValueReset || id == CSSValueDocument)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FNumber | FPercent | FNonNeg, CSSStrictMode));
+ break;
+
+ case CSSPropertyWebkitTextZoom:
+ // normal | reset
+ if (id == CSSValueNormal || id == CSSValueReset)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertySrc: // Only used within @font-face and @-webkit-filter, so cannot use inherit | initial or be !important. This is a list of urls or local references.
+ return parseFontFaceSrc();
+
+ case CSSPropertyUnicodeRange:
+ return parseFontFaceUnicodeRange();
+
+ /* CSS3 properties */
+
+ case CSSPropertyBorderImage: {
+ RefPtr<CSSValue> result;
+ return parseBorderImage(propId, result, important);
+ }
+ case CSSPropertyWebkitBorderImage:
+ case CSSPropertyWebkitMaskBoxImage: {
+ RefPtr<CSSValue> result;
+ if (parseBorderImage(propId, result)) {
+ addProperty(propId, WTFMove(result), important);
+ return true;
+ }
+ break;
+ }
+ case CSSPropertyBorderImageOutset:
+ case CSSPropertyWebkitMaskBoxImageOutset: {
+ RefPtr<CSSPrimitiveValue> result;
+ if (parseBorderImageOutset(result)) {
+ addProperty(propId, WTFMove(result), important);
+ return true;
+ }
+ break;
+ }
+ case CSSPropertyBorderImageRepeat:
+ case CSSPropertyWebkitMaskBoxImageRepeat: {
+ RefPtr<CSSValue> result;
+ if (parseBorderImageRepeat(result)) {
+ addProperty(propId, WTFMove(result), important);
+ return true;
+ }
+ break;
+ }
+ case CSSPropertyBorderImageSlice:
+ case CSSPropertyWebkitMaskBoxImageSlice: {
+ RefPtr<CSSBorderImageSliceValue> result;
+ if (parseBorderImageSlice(propId, result)) {
+ addProperty(propId, WTFMove(result), important);
+ return true;
+ }
+ break;
+ }
+ case CSSPropertyBorderImageWidth:
+ case CSSPropertyWebkitMaskBoxImageWidth: {
+ RefPtr<CSSPrimitiveValue> result;
+ if (parseBorderImageWidth(result)) {
+ addProperty(propId, WTFMove(result), important);
+ return true;
+ }
+ break;
+ }
+ case CSSPropertyBorderTopRightRadius:
+ case CSSPropertyBorderTopLeftRadius:
+ case CSSPropertyBorderBottomLeftRadius:
+ case CSSPropertyBorderBottomRightRadius: {
+ if (num != 1 && num != 2)
+ return false;
+ validPrimitive = validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg);
+ if (!validPrimitive)
+ return false;
+ auto parsedValue1 = createPrimitiveNumericValue(valueWithCalculation);
+ RefPtr<CSSPrimitiveValue> parsedValue2;
+ if (num == 2) {
+ ValueWithCalculation nextValueWithCalculation(*m_valueList->next());
+ validPrimitive = validateUnit(nextValueWithCalculation, FLength | FPercent | FNonNeg);
+ if (!validPrimitive)
+ return false;
+ parsedValue2 = createPrimitiveNumericValue(nextValueWithCalculation);
+ } else
+ parsedValue2 = parsedValue1.ptr();
+
+ addProperty(propId, createPrimitiveValuePair(WTFMove(parsedValue1), parsedValue2.releaseNonNull()), important);
+ return true;
+ }
+ case CSSPropertyTabSize:
+ validPrimitive = validateUnit(valueWithCalculation, FInteger | FNonNeg);
+ break;
+ case CSSPropertyWebkitAspectRatio:
+ return parseAspectRatio(important);
+ case CSSPropertyBorderRadius:
+ case CSSPropertyWebkitBorderRadius:
+ return parseBorderRadius(propId, important);
+ case CSSPropertyOutlineOffset:
+ validPrimitive = validateUnit(valueWithCalculation, FLength);
+ break;
+ case CSSPropertyTextShadow: // CSS2 property, dropped in CSS2.1, back in CSS3, so treat as CSS3
+ case CSSPropertyBoxShadow:
+ case CSSPropertyWebkitBoxShadow:
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else {
+ RefPtr<CSSValueList> shadowValueList = parseShadow(*m_valueList, propId);
+ if (shadowValueList) {
+ addProperty(propId, shadowValueList.releaseNonNull(), important);
+ m_valueList->next();
+ return true;
+ }
+ return false;
+ }
+ break;
+ case CSSPropertyWebkitInitialLetter: {
+ if (id == CSSValueNormal)
+ validPrimitive = true;
+ else {
+ if (num != 1 && num != 2)
+ return false;
+ validPrimitive = validateUnit(valueWithCalculation, FPositiveInteger);
+ if (!validPrimitive)
+ return false;
+ auto height = createPrimitiveNumericValue(valueWithCalculation);
+ RefPtr<CSSPrimitiveValue> position;
+ if (num == 2) {
+ ValueWithCalculation nextValueWithCalculation(*m_valueList->next());
+ validPrimitive = validateUnit(nextValueWithCalculation, FPositiveInteger);
+ if (!validPrimitive)
+ return false;
+ position = createPrimitiveNumericValue(nextValueWithCalculation);
+ } else
+ position = height.ptr();
+ addProperty(propId, createPrimitiveValuePair(position.releaseNonNull(), WTFMove(height)), important);
+ return true;
+ }
+ break;
+ }
+ case CSSPropertyWebkitBoxReflect:
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else
+ return parseReflect(propId, important);
+ break;
+ case CSSPropertyOpacity:
+ validPrimitive = validateUnit(valueWithCalculation, FNumber);
+ break;
+ case CSSPropertyWebkitBoxFlex:
+ validPrimitive = validateUnit(valueWithCalculation, FNumber);
+ break;
+ case CSSPropertyWebkitBoxFlexGroup:
+ validPrimitive = validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSStrictMode);
+ break;
+ case CSSPropertyWebkitBoxOrdinalGroup:
+ validPrimitive = validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSStrictMode) && valueWithCalculation.value().fValue;
+ break;
+ case CSSPropertyFilter:
+#if ENABLE(FILTERS_LEVEL_2)
+ case CSSPropertyWebkitBackdropFilter:
+#endif
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else {
+ RefPtr<CSSValueList> currValue;
+ if (!parseFilter(*m_valueList, currValue))
+ return false;
+ addProperty(propId, WTFMove(currValue), important);
+ return true;
+ }
+ break;
+#if ENABLE(CSS_COMPOSITING)
+ case CSSPropertyMixBlendMode:
+ validPrimitive = true;
+ break;
+ case CSSPropertyIsolation:
+ validPrimitive = true;
+ break;
+#endif
+ case CSSPropertyFlex: {
+ ShorthandScope scope(this, propId);
+ if (id == CSSValueNone) {
+ addProperty(CSSPropertyFlexGrow, cssValuePool.createValue(0, CSSPrimitiveValue::CSS_NUMBER), important);
+ addProperty(CSSPropertyFlexShrink, cssValuePool.createValue(0, CSSPrimitiveValue::CSS_NUMBER), important);
+ addProperty(CSSPropertyFlexBasis, cssValuePool.createIdentifierValue(CSSValueAuto), important);
+ return true;
+ }
+ return parseFlex(*m_valueList, important);
+ }
+ case CSSPropertyFlexBasis:
+ // FIXME: Support intrinsic dimensions too.
+ if (id == CSSValueAuto)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg));
+ break;
+ case CSSPropertyFlexGrow:
+ case CSSPropertyFlexShrink:
+ validPrimitive = validateUnit(valueWithCalculation, FNumber | FNonNeg);
+ break;
+ case CSSPropertyOrder:
+ if (validateUnit(valueWithCalculation, FInteger, CSSStrictMode)) {
+ // We restrict the smallest value to int min + 2 because we use int min and int min + 1 as special values in a hash set.
+ double result = std::max<double>(std::numeric_limits<int>::min() + 2, parsedDouble(valueWithCalculation));
+ parsedValue = cssValuePool.createValue(result, CSSPrimitiveValue::CSS_NUMBER);
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyWebkitMarquee:
+ return parseShorthand(propId, webkitMarqueeShorthand(), important);
+ case CSSPropertyWebkitMarqueeIncrement:
+ if (id == CSSValueSmall || id == CSSValueLarge || id == CSSValueMedium)
+ validPrimitive = true;
+ else
+ validPrimitive = validateUnit(valueWithCalculation, FLength | FPercent);
+ break;
+ case CSSPropertyWebkitMarqueeRepetition:
+ if (id == CSSValueInfinite)
+ validPrimitive = true;
+ else
+ validPrimitive = validateUnit(valueWithCalculation, FInteger | FNonNeg);
+ break;
+ case CSSPropertyWebkitMarqueeSpeed:
+ if (id == CSSValueNormal || id == CSSValueSlow || id == CSSValueFast)
+ validPrimitive = true;
+ else
+ validPrimitive = validateUnit(valueWithCalculation, FTime | FInteger | FNonNeg);
+ break;
+#if ENABLE(CSS_REGIONS)
+ case CSSPropertyWebkitFlowInto:
+ return parseFlowThread(propId, important);
+ case CSSPropertyWebkitFlowFrom:
+ return parseRegionThread(propId, important);
+#endif
+ case CSSPropertyTransform:
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else {
+ if (RefPtr<CSSValue> transformValue = parseTransform()) {
+ addProperty(propId, transformValue.releaseNonNull(), important);
+ return true;
+ }
+ return false;
+ }
+ break;
+ case CSSPropertyTransformOrigin:
+ case CSSPropertyTransformOriginX:
+ case CSSPropertyTransformOriginY:
+ case CSSPropertyTransformOriginZ: {
+ RefPtr<CSSPrimitiveValue> val1;
+ RefPtr<CSSPrimitiveValue> val2;
+ RefPtr<CSSValue> val3;
+ CSSPropertyID propId1, propId2, propId3;
+ if (parseTransformOrigin(propId, propId1, propId2, propId3, val1, val2, val3)) {
+ addProperty(propId1, WTFMove(val1), important);
+ if (val2)
+ addProperty(propId2, WTFMove(val2), important);
+ if (val3)
+ addProperty(propId3, WTFMove(val3), important);
+ return true;
+ }
+ return false;
+ }
+ case CSSPropertyPerspective:
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else {
+ // Accepting valueless numbers is a quirk of the -webkit prefixed version of the property.
+ if (validateUnit(valueWithCalculation, FNumber | FLength | FNonNeg)) {
+ addProperty(propId, createPrimitiveNumericValue(valueWithCalculation), important);
+ return true;
+ }
+ }
+ break;
+ case CSSPropertyPerspectiveOrigin:
+ case CSSPropertyPerspectiveOriginX:
+ case CSSPropertyPerspectiveOriginY: {
+ RefPtr<CSSPrimitiveValue> val1;
+ RefPtr<CSSPrimitiveValue> val2;
+ CSSPropertyID propId1, propId2;
+ if (parsePerspectiveOrigin(propId, propId1, propId2, val1, val2)) {
+ addProperty(propId1, WTFMove(val1), important);
+ if (val2)
+ addProperty(propId2, WTFMove(val2), important);
+ return true;
+ }
+ return false;
+ }
+ case CSSPropertyAnimationDelay:
+ case CSSPropertyAnimationDirection:
+ case CSSPropertyAnimationDuration:
+ case CSSPropertyAnimationFillMode:
+ case CSSPropertyAnimationName:
+ case CSSPropertyAnimationPlayState:
+ case CSSPropertyAnimationIterationCount:
+ case CSSPropertyAnimationTimingFunction:
+ case CSSPropertyWebkitAnimationDelay:
+ case CSSPropertyWebkitAnimationDirection:
+ case CSSPropertyWebkitAnimationDuration:
+ case CSSPropertyWebkitAnimationFillMode:
+ case CSSPropertyWebkitAnimationName:
+ case CSSPropertyWebkitAnimationPlayState:
+ case CSSPropertyWebkitAnimationIterationCount:
+ case CSSPropertyWebkitAnimationTimingFunction:
+#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
+ case CSSPropertyWebkitAnimationTrigger:
+#endif
+ case CSSPropertyTransitionDelay:
+ case CSSPropertyTransitionDuration:
+ case CSSPropertyTransitionTimingFunction:
+ case CSSPropertyTransitionProperty:
+ case CSSPropertyWebkitTransitionDelay:
+ case CSSPropertyWebkitTransitionDuration:
+ case CSSPropertyWebkitTransitionTimingFunction:
+ case CSSPropertyWebkitTransitionProperty: {
+ RefPtr<CSSValue> val;
+ AnimationParseContext context;
+ if (parseAnimationProperty(propId, val, context)) {
+ addProperty(propId, WTFMove(val), important);
+ return true;
+ }
+ return false;
+ }
+ case CSSPropertyJustifyContent:
+ parsedValue = parseContentDistributionOverflowPosition();
+ break;
+ case CSSPropertyJustifySelf:
+ return parseItemPositionOverflowPosition(propId, important);
+ case CSSPropertyJustifyItems:
+ if (parseLegacyPosition(propId, important))
+ return true;
+ m_valueList->setCurrentIndex(0);
+ return parseItemPositionOverflowPosition(propId, important);
+#if ENABLE(CSS_GRID_LAYOUT)
+ case CSSPropertyGridAutoColumns:
+ case CSSPropertyGridAutoRows:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ parsedValue = parseGridTrackList(GridAuto);
+ break;
+
+ case CSSPropertyGridTemplateColumns:
+ case CSSPropertyGridTemplateRows:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ parsedValue = parseGridTrackList(GridTemplate);
+ break;
+
+ case CSSPropertyGridColumnStart:
+ case CSSPropertyGridColumnEnd:
+ case CSSPropertyGridRowStart:
+ case CSSPropertyGridRowEnd:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ parsedValue = parseGridPosition();
+ break;
+
+ case CSSPropertyGridColumnGap:
+ case CSSPropertyGridRowGap:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ validPrimitive = validateUnit(valueWithCalculation, FLength | FNonNeg);
+ break;
+
+ case CSSPropertyGridGap:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ return parseGridGapShorthand(important);
+
+ case CSSPropertyGridColumn:
+ case CSSPropertyGridRow:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ return parseGridItemPositionShorthand(propId, important);
+
+ case CSSPropertyGridTemplate:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ return parseGridTemplateShorthand(important);
+
+ case CSSPropertyGrid:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ return parseGridShorthand(important);
+
+ case CSSPropertyGridArea:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ return parseGridAreaShorthand(important);
+
+ case CSSPropertyGridTemplateAreas:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ parsedValue = parseGridTemplateAreas();
+ break;
+ case CSSPropertyGridAutoFlow:
+ if (!isCSSGridLayoutEnabled())
+ return false;
+ parsedValue = parseGridAutoFlow(*m_valueList);
+ break;
+#endif /* ENABLE(CSS_GRID_LAYOUT) */
+ case CSSPropertyWebkitMarginCollapse: {
+ if (num == 1) {
+ ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse);
+ if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important))
+ return false;
+ CSSValue* value = m_parsedProperties.last().value();
+ addProperty(webkitMarginCollapseShorthand().properties()[1], value, important);
+ return true;
+ }
+ else if (num == 2) {
+ ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse);
+ if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important) || !parseValue(webkitMarginCollapseShorthand().properties()[1], important))
+ return false;
+ return true;
+ }
+ return false;
+ }
+ case CSSPropertyTextLineThroughWidth:
+ case CSSPropertyTextOverlineWidth:
+ case CSSPropertyTextUnderlineWidth:
+ if (id == CSSValueAuto || id == CSSValueNormal || id == CSSValueThin ||
+ id == CSSValueMedium || id == CSSValueThick)
+ validPrimitive = true;
+ else
+ validPrimitive = !id && validateUnit(valueWithCalculation, FNumber | FLength | FPercent);
+ break;
+ case CSSPropertyColumnCount:
+ parsedValue = parseColumnCount();
+ break;
+ case CSSPropertyColumnGap: // normal | <length>
+ if (id == CSSValueNormal)
+ validPrimitive = true;
+ else
+ validPrimitive = validateUnit(valueWithCalculation, FLength | FNonNeg);
+ break;
+ case CSSPropertyWebkitColumnAxis:
+ if (id == CSSValueHorizontal || id == CSSValueVertical || id == CSSValueAuto)
+ validPrimitive = true;
+ break;
+ case CSSPropertyColumnProgression:
+ if (id == CSSValueNormal || id == CSSValueReverse)
+ validPrimitive = true;
+ break;
+ case CSSPropertyColumnSpan: // none | all | 1 (will be dropped in the unprefixed property)
+ if (id == CSSValueAll || id == CSSValueNone)
+ validPrimitive = true;
+ else if (validateUnit(valueWithCalculation, FNumber | FNonNeg) && parsedDouble(valueWithCalculation) == 1) {
+ addProperty(CSSPropertyColumnSpan, cssValuePool.createValue(1, CSSPrimitiveValue::CSS_NUMBER), important);
+ return true;
+ }
+ break;
+ case CSSPropertyColumnWidth: // auto | <length>
+ parsedValue = parseColumnWidth();
+ break;
+ case CSSPropertyObjectPosition: {
+ RefPtr<CSSPrimitiveValue> val1;
+ RefPtr<CSSPrimitiveValue> val2;
+ parseFillPosition(*m_valueList, val1, val2);
+ if (val1) {
+ addProperty(CSSPropertyObjectPosition, createPrimitiveValuePair(val1.releaseNonNull(), WTFMove(val2)), important);
+ return true;
+ }
+ return false;
+ }
+ // End of CSS3 properties
+
+ case CSSPropertyWillChange: // auto | [scroll-position | contents | <custom-ident>]#
+ if (id == CSSValueAuto)
+ validPrimitive = true;
+ else
+ return parseWillChange(important);
+ break;
+
+ // Apple specific properties. These will never be standardized and are purely to
+ // support custom WebKit-based Apple applications.
+ case CSSPropertyWebkitLineClamp:
+ // When specifying number of lines, don't allow 0 as a valid value
+ // When specifying either type of unit, require non-negative integers
+ validPrimitive = (!id && (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_PERCENTAGE || valueWithCalculation.value().fValue) && validateUnit(valueWithCalculation, FInteger | FPercent | FNonNeg, CSSQuirksMode));
+ break;
+#if ENABLE(IOS_TEXT_AUTOSIZING)
+ case CSSPropertyWebkitTextSizeAdjust:
+ if (!isTextAutosizingEnabled())
+ return false;
+
+ if (id == CSSValueAuto || id == CSSValueNone)
+ validPrimitive = true;
+ else {
+ // FIXME: Handle multilength case where we allow relative units.
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FPercent | FNonNeg, CSSStrictMode));
+ }
+ break;
+#endif
+
+ case CSSPropertyWebkitFontSizeDelta: // <length>
+ validPrimitive = validateUnit(valueWithCalculation, FLength);
+ break;
+
+ case CSSPropertyWebkitHyphenateCharacter:
+ if (id == CSSValueAuto || valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_STRING)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyWebkitHyphenateLimitBefore:
+ case CSSPropertyWebkitHyphenateLimitAfter:
+ if (id == CSSValueAuto || validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSStrictMode))
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyWebkitHyphenateLimitLines:
+ if (id == CSSValueNoLimit || validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSStrictMode))
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyWebkitLineGrid:
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_IDENT) {
+ String lineGridValue = String(valueWithCalculation.value().string);
+ if (!lineGridValue.isEmpty()) {
+ addProperty(propId, cssValuePool.createValue(lineGridValue, CSSPrimitiveValue::CSS_STRING), important);
+ return true;
+ }
+ }
+ break;
+ case CSSPropertyWebkitLocale:
+ if (id == CSSValueAuto || valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_STRING)
+ validPrimitive = true;
+ break;
+
+#if ENABLE(DASHBOARD_SUPPORT)
+ case CSSPropertyWebkitDashboardRegion: // <dashboard-region> | <dashboard-region>
+ if (valueWithCalculation.value().unit == CSSParserValue::Function || id == CSSValueNone)
+ return parseDashboardRegions(propId, important);
+ break;
+#endif
+
+#if PLATFORM(IOS)
+ case CSSPropertyWebkitTouchCallout:
+ if (id == CSSValueDefault || id == CSSValueNone)
+ validPrimitive = true;
+ break;
+#endif
+#if ENABLE(TOUCH_EVENTS)
+ case CSSPropertyWebkitTapHighlightColor:
+ if (isValidSystemColorValue(id) || id == CSSValueMenu
+ || (id >= CSSValueWebkitFocusRingColor && id < CSSValueWebkitText && inQuirksMode())) {
+ validPrimitive = true;
+ } else {
+ parsedValue = parseColor();
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+#endif
+ // End Apple-specific properties
+
+ /* shorthand properties */
+ case CSSPropertyBackground: {
+ // Position must come before color in this array because a plain old "0" is a legal color
+ // in quirks mode but it's usually the X coordinate of a position.
+ const CSSPropertyID properties[] = { CSSPropertyBackgroundImage, CSSPropertyBackgroundRepeat,
+ CSSPropertyBackgroundAttachment, CSSPropertyBackgroundPosition, CSSPropertyBackgroundOrigin,
+ CSSPropertyBackgroundClip, CSSPropertyBackgroundColor, CSSPropertyBackgroundSize };
+ return parseFillShorthand(propId, properties, WTF_ARRAY_LENGTH(properties), important);
+ }
+ case CSSPropertyWebkitMask: {
+ const CSSPropertyID properties[] = { CSSPropertyWebkitMaskImage, CSSPropertyWebkitMaskSourceType, CSSPropertyWebkitMaskRepeat,
+ CSSPropertyWebkitMaskPosition, CSSPropertyWebkitMaskOrigin, CSSPropertyWebkitMaskClip, CSSPropertyWebkitMaskSize };
+ return parseFillShorthand(propId, properties, WTF_ARRAY_LENGTH(properties), important);
+ }
+ case CSSPropertyBorder:
+ // [ 'border-width' || 'border-style' || <color> ] | inherit
+ {
+ if (parseShorthand(propId, borderAbridgedShorthand(), important)) {
+ // The CSS3 Borders and Backgrounds specification says that border also resets border-image. It's as
+ // though a value of none was specified for the image.
+ addExpandedPropertyForValue(CSSPropertyBorderImage, cssValuePool.createImplicitInitialValue(), important);
+ return true;
+ }
+ return false;
+ }
+ case CSSPropertyBorderTop:
+ // [ 'border-top-width' || 'border-style' || <color> ] | inherit
+ return parseShorthand(propId, borderTopShorthand(), important);
+ case CSSPropertyBorderRight:
+ // [ 'border-right-width' || 'border-style' || <color> ] | inherit
+ return parseShorthand(propId, borderRightShorthand(), important);
+ case CSSPropertyBorderBottom:
+ // [ 'border-bottom-width' || 'border-style' || <color> ] | inherit
+ return parseShorthand(propId, borderBottomShorthand(), important);
+ case CSSPropertyBorderLeft:
+ // [ 'border-left-width' || 'border-style' || <color> ] | inherit
+ return parseShorthand(propId, borderLeftShorthand(), important);
+ case CSSPropertyWebkitBorderStart:
+ return parseShorthand(propId, webkitBorderStartShorthand(), important);
+ case CSSPropertyWebkitBorderEnd:
+ return parseShorthand(propId, webkitBorderEndShorthand(), important);
+ case CSSPropertyWebkitBorderBefore:
+ return parseShorthand(propId, webkitBorderBeforeShorthand(), important);
+ case CSSPropertyWebkitBorderAfter:
+ return parseShorthand(propId, webkitBorderAfterShorthand(), important);
+ case CSSPropertyOutline:
+ // [ 'outline-color' || 'outline-style' || 'outline-width' ] | inherit
+ return parseShorthand(propId, outlineShorthand(), important);
+ case CSSPropertyBorderColor:
+ // <color>{1,4} | inherit
+ return parse4Values(propId, borderColorShorthand().properties(), important);
+ case CSSPropertyBorderWidth:
+ // <border-width>{1,4} | inherit
+ return parse4Values(propId, borderWidthShorthand().properties(), important);
+ case CSSPropertyBorderStyle:
+ // <border-style>{1,4} | inherit
+ return parse4Values(propId, borderStyleShorthand().properties(), important);
+ case CSSPropertyMargin:
+ // <margin-width>{1,4} | inherit
+ return parse4Values(propId, marginShorthand().properties(), important);
+ case CSSPropertyPadding:
+ // <padding-width>{1,4} | inherit
+ return parse4Values(propId, paddingShorthand().properties(), important);
+ case CSSPropertyFlexFlow:
+ return parseShorthand(propId, flexFlowShorthand(), important);
+ case CSSPropertyFont:
+ // [ [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]?
+ // 'font-family' ] | caption | icon | menu | message-box | small-caption | status-bar | inherit
+ if (num == 1 && id >= CSSValueCaption && id <= CSSValueStatusBar) {
+ parseSystemFont(important);
+ return true;
+ }
+ return parseFont(important);
+ case CSSPropertyListStyle:
+ return parseShorthand(propId, listStyleShorthand(), important);
+ case CSSPropertyColumns:
+ return parseColumnsShorthand(important);
+ case CSSPropertyColumnRule:
+ return parseShorthand(propId, columnRuleShorthand(), important);
+ case CSSPropertyWebkitTextStroke:
+ return parseShorthand(propId, webkitTextStrokeShorthand(), important);
+ case CSSPropertyAnimation:
+ case CSSPropertyWebkitAnimation:
+ return parseAnimationShorthand(propId, important);
+ case CSSPropertyTransition:
+ case CSSPropertyWebkitTransition:
+ return parseTransitionShorthand(propId, important);
+ case CSSPropertyInvalid:
+ return false;
+ case CSSPropertyPage:
+ return parsePage(propId, important);
+ case CSSPropertyFontStretch:
+ case CSSPropertyTextLineThrough:
+ case CSSPropertyTextOverline:
+ case CSSPropertyTextUnderline:
+ return false;
+ // CSS Text Layout Module Level 3: Vertical writing support
+ case CSSPropertyWebkitTextEmphasis:
+ return parseShorthand(propId, webkitTextEmphasisShorthand(), important);
+
+ case CSSPropertyWebkitTextEmphasisStyle:
+ return parseTextEmphasisStyle(important);
+
+ case CSSPropertyWebkitTextEmphasisPosition:
+ return parseTextEmphasisPosition(important);
+
+ case CSSPropertyWebkitTextOrientation:
+ if (id == CSSValueSideways || id == CSSValueSidewaysRight || id == CSSValueVerticalRight || id == CSSValueMixed || id == CSSValueUpright)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyHangingPunctuation:
+ return parseHangingPunctuation(important);
+ case CSSPropertyWebkitLineBoxContain:
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else
+ return parseLineBoxContain(important);
+ break;
+ case CSSPropertyFontFeatureSettings:
+ if (id == CSSValueNormal)
+ validPrimitive = true;
+ else
+ return parseFontFeatureSettings(important);
+ break;
+ case CSSPropertyFontVariantLigatures:
+ if (id == CSSValueNormal || id == CSSValueNone)
+ validPrimitive = true;
+ else
+ return parseFontVariantLigatures(important, true, false);
+ break;
+ case CSSPropertyFontVariantNumeric:
+ if (id == CSSValueNormal)
+ validPrimitive = true;
+ else
+ return parseFontVariantNumeric(important, true, false);
+ break;
+ case CSSPropertyFontVariantEastAsian:
+ if (id == CSSValueNormal)
+ validPrimitive = true;
+ else
+ return parseFontVariantEastAsian(important, true, false);
+ break;
+ case CSSPropertyFontVariant:
+ if (id == CSSValueNormal) {
+ ShorthandScope scope(this, CSSPropertyFontVariant);
+ addProperty(CSSPropertyFontVariantLigatures, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+ addProperty(CSSPropertyFontVariantPosition, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+ addProperty(CSSPropertyFontVariantNumeric, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+ addProperty(CSSPropertyFontVariantAlternates, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+ addProperty(CSSPropertyFontVariantEastAsian, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+ return true;
+ }
+ if (id == CSSValueNone) {
+ ShorthandScope scope(this, CSSPropertyFontVariant);
+ addProperty(CSSPropertyFontVariantLigatures, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important, true);
+ return true;
+ }
+ return parseFontVariant(important);
+
+ case CSSPropertyWebkitClipPath:
+ parsedValue = parseClipPath();
+ break;
+#if ENABLE(CSS_SHAPES)
+ case CSSPropertyWebkitShapeOutside:
+ parsedValue = parseShapeProperty(propId);
+ break;
+ case CSSPropertyWebkitShapeMargin:
+ validPrimitive = !id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg);
+ break;
+ case CSSPropertyWebkitShapeImageThreshold:
+ validPrimitive = !id && validateUnit(valueWithCalculation, FNumber);
+ break;
+#endif
+#if ENABLE(CSS_IMAGE_ORIENTATION)
+ case CSSPropertyImageOrientation:
+ validPrimitive = !id && validateUnit(valueWithCalculation, FAngle);
+ break;
+#endif
+#if ENABLE(CSS_IMAGE_RESOLUTION)
+ case CSSPropertyImageResolution:
+ parsedValue = parseImageResolution();
+ break;
+#endif
+ case CSSPropertyAlignContent:
+ parsedValue = parseContentDistributionOverflowPosition();
+ break;
+ case CSSPropertyAlignSelf:
+ return parseItemPositionOverflowPosition(propId, important);
+
+ case CSSPropertyAlignItems:
+ return parseItemPositionOverflowPosition(propId, important);
+ case CSSPropertyBorderBottomStyle:
+ case CSSPropertyBorderCollapse:
+ case CSSPropertyBorderLeftStyle:
+ case CSSPropertyBorderRightStyle:
+ case CSSPropertyBorderTopStyle:
+ case CSSPropertyBoxSizing:
+ case CSSPropertyBreakAfter:
+ case CSSPropertyBreakBefore:
+ case CSSPropertyBreakInside:
+ case CSSPropertyCaptionSide:
+ case CSSPropertyClear:
+ case CSSPropertyDirection:
+ case CSSPropertyDisplay:
+ case CSSPropertyEmptyCells:
+ case CSSPropertyFloat:
+ case CSSPropertyFontStyle:
+ case CSSPropertyImageRendering:
+ case CSSPropertyListStylePosition:
+ case CSSPropertyListStyleType:
+ case CSSPropertyObjectFit:
+ case CSSPropertyOutlineStyle:
+ case CSSPropertyOverflowWrap:
+ case CSSPropertyOverflowX:
+ case CSSPropertyOverflowY:
+ case CSSPropertyPageBreakAfter:
+ case CSSPropertyPageBreakBefore:
+ case CSSPropertyPageBreakInside:
+ case CSSPropertyPointerEvents:
+ case CSSPropertyPosition:
+ case CSSPropertyResize:
+ case CSSPropertySpeak:
+ case CSSPropertyTableLayout:
+ case CSSPropertyTextLineThroughMode:
+ case CSSPropertyTextLineThroughStyle:
+ case CSSPropertyTextOverflow:
+ case CSSPropertyTextOverlineMode:
+ case CSSPropertyTextOverlineStyle:
+ case CSSPropertyTextRendering:
+ case CSSPropertyTextTransform:
+ case CSSPropertyTextUnderlineMode:
+ case CSSPropertyTextUnderlineStyle:
+ case CSSPropertyVisibility:
+ case CSSPropertyWebkitAppearance:
+ case CSSPropertyWebkitBackfaceVisibility:
+ case CSSPropertyWebkitBorderAfterStyle:
+ case CSSPropertyWebkitBorderBeforeStyle:
+ case CSSPropertyWebkitBorderEndStyle:
+ case CSSPropertyWebkitBorderFit:
+ case CSSPropertyWebkitBorderStartStyle:
+ case CSSPropertyWebkitBoxAlign:
+#if ENABLE(CSS_BOX_DECORATION_BREAK)
+ case CSSPropertyWebkitBoxDecorationBreak:
+#endif
+ case CSSPropertyWebkitBoxDirection:
+ case CSSPropertyWebkitBoxLines:
+ case CSSPropertyWebkitBoxOrient:
+ case CSSPropertyWebkitBoxPack:
+ case CSSPropertyWebkitColumnBreakAfter:
+ case CSSPropertyWebkitColumnBreakBefore:
+ case CSSPropertyWebkitColumnBreakInside:
+ case CSSPropertyColumnFill:
+ case CSSPropertyColumnRuleStyle:
+ case CSSPropertyFlexDirection:
+ case CSSPropertyFlexWrap:
+ case CSSPropertyWebkitFontKerning:
+ case CSSPropertyWebkitFontSmoothing:
+ case CSSPropertyWebkitHyphens:
+ case CSSPropertyWebkitLineAlign:
+ case CSSPropertyWebkitLineBreak:
+ case CSSPropertyWebkitLineSnap:
+ case CSSPropertyWebkitMarginAfterCollapse:
+ case CSSPropertyWebkitMarginBeforeCollapse:
+ case CSSPropertyWebkitMarginBottomCollapse:
+ case CSSPropertyWebkitMarginTopCollapse:
+ case CSSPropertyWebkitMarqueeDirection:
+ case CSSPropertyWebkitMarqueeStyle:
+ case CSSPropertyWebkitNbspMode:
+#if ENABLE(ACCELERATED_OVERFLOW_SCROLLING)
+ case CSSPropertyWebkitOverflowScrolling:
+#endif
+ case CSSPropertyWebkitPrintColorAdjust:
+#if ENABLE(CSS_REGIONS)
+ case CSSPropertyWebkitRegionBreakAfter:
+ case CSSPropertyWebkitRegionBreakBefore:
+ case CSSPropertyWebkitRegionBreakInside:
+ case CSSPropertyWebkitRegionFragment:
+#endif
+ case CSSPropertyWebkitRtlOrdering:
+ case CSSPropertyWebkitRubyPosition:
+#if ENABLE(CSS3_TEXT)
+ case CSSPropertyWebkitTextAlignLast:
+#endif // CSS3_TEXT
+ case CSSPropertyWebkitTextCombine:
+#if ENABLE(CSS3_TEXT)
+ case CSSPropertyWebkitTextJustify:
+#endif // CSS3_TEXT
+ case CSSPropertyWebkitTextSecurity:
+ case CSSPropertyTransformStyle:
+ case CSSPropertyWebkitTransformStyle:
+ case CSSPropertyWebkitUserDrag:
+ case CSSPropertyWebkitUserModify:
+ case CSSPropertyWebkitUserSelect:
+ case CSSPropertyWebkitWritingMode:
+ case CSSPropertyWhiteSpace:
+ case CSSPropertyWordBreak:
+ case CSSPropertyWordWrap:
+#if ENABLE(TOUCH_EVENTS)
+ case CSSPropertyTouchAction:
+#endif
+#if ENABLE(CSS_SCROLL_SNAP)
+ case CSSPropertyWebkitScrollSnapType:
+#endif
+#if ENABLE(CSS_TRAILING_WORD)
+ case CSSPropertyAppleTrailingWord:
+#endif
+ // These properties should be handled before in isValidKeywordPropertyAndValue().
+ ASSERT_NOT_REACHED();
+ return false;
+#if ENABLE(CSS_DEVICE_ADAPTATION)
+ // Properties bellow are validated inside parseViewportProperty, because we
+ // check for parser state inViewportScope. We need to invalidate if someone
+ // adds them outside a @viewport rule.
+ case CSSPropertyMaxZoom:
+ case CSSPropertyMinZoom:
+ case CSSPropertyOrientation:
+ case CSSPropertyUserZoom:
+ validPrimitive = false;
+ break;
+#endif
+#if ENABLE(CSS_SCROLL_SNAP)
+ case CSSPropertyWebkitScrollSnapPointsX:
+ case CSSPropertyWebkitScrollSnapPointsY:
+ if (id == CSSValueElements) {
+ validPrimitive = true;
+ break;
+ }
+ return parseNonElementSnapPoints(propId, important);
+ case CSSPropertyWebkitScrollSnapDestination: // <length>{2}
+ return parseScrollSnapDestination(propId, important);
+ case CSSPropertyWebkitScrollSnapCoordinate:
+ return parseScrollSnapCoordinate(propId, important);
+#endif
+
+ default:
+ return parseSVGValue(propId, important);
+ }
+
+ if (validPrimitive) {
+ parsedValue = parseValidPrimitive(id, valueWithCalculation);
+ m_valueList->next();
+ }
+
+ if (parsedValue && (!m_valueList->current() || inShorthand())) {
+ addProperty(propId, parsedValue.releaseNonNull(), important);
+ return true;
+ }
+ return false;
+}
+
+void CSSParser::addFillValue(RefPtr<CSSValue>& lval, Ref<CSSValue>&& rval)
+{
+ if (!lval) {
+ lval = WTFMove(rval);
+ return;
+ }
+
+ if (lval->isBaseValueList()) {
+ downcast<CSSValueList>(*lval).append(WTFMove(rval));
+ return;
+ }
+
+ auto list = CSSValueList::createCommaSeparated();
+ list.get().append(lval.releaseNonNull());
+ list.get().append(WTFMove(rval));
+ lval = WTFMove(list);
+}
+
+static bool isContentDistributionKeyword(CSSValueID id)
+{
+ return id == CSSValueSpaceBetween || id == CSSValueSpaceAround
+ || id == CSSValueSpaceEvenly || id == CSSValueStretch;
+}
+
+static bool isContentPositionKeyword(CSSValueID id)
+{
+ return id == CSSValueStart || id == CSSValueEnd || id == CSSValueCenter
+ || id == CSSValueFlexStart || id == CSSValueFlexEnd
+ || id == CSSValueLeft || id == CSSValueRight;
+}
+
+static inline bool isBaselinePositionKeyword(CSSValueID id)
+{
+ return id == CSSValueBaseline || id == CSSValueLastBaseline;
+}
+
+static bool isAlignmentOverflowKeyword(CSSValueID id)
+{
+ return id == CSSValueUnsafe || id == CSSValueSafe;
+}
+
+static bool isItemPositionKeyword(CSSValueID id)
+{
+ return id == CSSValueStart || id == CSSValueEnd || id == CSSValueCenter
+ || id == CSSValueSelfStart || id == CSSValueSelfEnd || id == CSSValueFlexStart
+ || id == CSSValueFlexEnd || id == CSSValueLeft || id == CSSValueRight;
+}
+
+bool CSSParser::parseLegacyPosition(CSSPropertyID propId, bool important)
+{
+ // [ legacy && [ left | right | center ]
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return false;
+
+ if (value->id == CSSValueLegacy) {
+ value = m_valueList->next();
+ if (!value)
+ return false;
+ if (value->id != CSSValueCenter && value->id != CSSValueLeft && value->id != CSSValueRight)
+ return false;
+ } else if (value->id == CSSValueCenter || value->id == CSSValueLeft || value->id == CSSValueRight) {
+ if (!m_valueList->next() || m_valueList->current()->id != CSSValueLegacy)
+ return false;
+ } else
+ return false;
+
+ auto& cssValuePool = CSSValuePool::singleton();
+ addProperty(propId, createPrimitiveValuePair(cssValuePool.createIdentifierValue(CSSValueLegacy), cssValuePool.createIdentifierValue(value->id)), important);
+ return !m_valueList->next();
+}
+
+RefPtr<CSSContentDistributionValue> CSSParser::parseContentDistributionOverflowPosition()
+{
+ // normal | <baseline-position> | <content-distribution> || [ <overflow-position>? && <content-position> ]
+ // <baseline-position> = baseline | last-baseline;
+ // <content-distribution> = space-between | space-around | space-evenly | stretch;
+ // <content-position> = center | start | end | flex-start | flex-end | left | right;
+ // <overflow-position> = unsafe | safe
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return nullptr;
+
+ // auto | <baseline-position>
+ if (value->id == CSSValueNormal || isBaselinePositionKeyword(value->id)) {
+ m_valueList->next();
+ return CSSContentDistributionValue::create(CSSValueInvalid, value->id, CSSValueInvalid);
+ }
+
+ CSSValueID distribution = CSSValueInvalid;
+ CSSValueID position = CSSValueInvalid;
+ CSSValueID overflow = CSSValueInvalid;
+ while (value) {
+ if (isContentDistributionKeyword(value->id)) {
+ if (distribution != CSSValueInvalid)
+ return nullptr;
+ distribution = value->id;
+ } else if (isContentPositionKeyword(value->id)) {
+ if (position != CSSValueInvalid)
+ return nullptr;
+ position = value->id;
+ } else if (isAlignmentOverflowKeyword(value->id)) {
+ if (overflow != CSSValueInvalid)
+ return nullptr;
+ overflow = value->id;
+ } else
+ return nullptr;
+ value = m_valueList->next();
+ }
+
+ // The grammar states that we should have at least <content-distribution> or
+ // <content-position> ( <content-distribution> || <content-position> ).
+ if (position == CSSValueInvalid && distribution == CSSValueInvalid)
+ return nullptr;
+
+ // The grammar states that <overflow-position> must be associated to <content-position>.
+ if (overflow != CSSValueInvalid && position == CSSValueInvalid)
+ return nullptr;
+
+ return CSSContentDistributionValue::create(distribution, position, overflow);
+}
+
+bool CSSParser::parseItemPositionOverflowPosition(CSSPropertyID propId, bool important)
+{
+ // auto | normal | stretch | <baseline-position> | [<item-position> && <overflow-position>? ]
+ // <baseline-position> = baseline | last-baseline;
+ // <item-position> = center | start | end | self-start | self-end | flex-start | flex-end | left | right;
+ // <overflow-position> = unsafe | safe
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return false;
+
+ if (value->id == CSSValueAuto || value->id == CSSValueNormal || value->id == CSSValueStretch || isBaselinePositionKeyword(value->id)) {
+ // align-items property does not allow the 'auto' value.
+ if (value->id == CSSValueAuto && propId == CSSPropertyAlignItems)
+ return false;
+ if (m_valueList->next())
+ return false;
+
+ addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
+ return true;
+ }
+
+ RefPtr<CSSPrimitiveValue> position;
+ RefPtr<CSSPrimitiveValue> overflowAlignmentKeyword;
+ if (isItemPositionKeyword(value->id)) {
+ position = CSSValuePool::singleton().createIdentifierValue(value->id);
+ value = m_valueList->next();
+ if (value) {
+ if (value->id != CSSValueUnsafe && value->id != CSSValueSafe)
+ return false;
+ overflowAlignmentKeyword = CSSValuePool::singleton().createIdentifierValue(value->id);
+ }
+ } else if (isAlignmentOverflowKeyword(value->id)) {
+ overflowAlignmentKeyword = CSSValuePool::singleton().createIdentifierValue(value->id);
+ value = m_valueList->next();
+ if (value && isItemPositionKeyword(value->id))
+ position = CSSValuePool::singleton().createIdentifierValue(value->id);
+ else
+ return false;
+ } else
+ return false;
+
+ if (m_valueList->next())
+ return false;
+
+ ASSERT(position);
+ if (overflowAlignmentKeyword)
+ addProperty(propId, createPrimitiveValuePair(position.releaseNonNull(), overflowAlignmentKeyword.releaseNonNull()), important);
+ else
+ addProperty(propId, position.releaseNonNull(), important);
+
+ return true;
+}
+
+static bool parseBackgroundClip(CSSParserValue& parserValue, RefPtr<CSSValue>& cssValue)
+{
+ if (parserValue.id == CSSValueBorderBox || parserValue.id == CSSValuePaddingBox
+ || parserValue.id == CSSValueContentBox || parserValue.id == CSSValueWebkitText) {
+ cssValue = CSSValuePool::singleton().createIdentifierValue(parserValue.id);
+ return true;
+ }
+ return false;
+}
+
+bool CSSParser::useLegacyBackgroundSizeShorthandBehavior() const
+{
+ return m_context.useLegacyBackgroundSizeShorthandBehavior;
+}
+
+#if ENABLE(CSS_SCROLL_SNAP)
+bool CSSParser::parseNonElementSnapPoints(CSSPropertyID propId, bool important)
+{
+ auto values = CSSValueList::createSpaceSeparated();
+ while (CSSParserValue* value = m_valueList->current()) {
+ ValueWithCalculation valueWithCalculation(*value);
+ if (validateUnit(valueWithCalculation, FPercent | FLength))
+ values->append(createPrimitiveNumericValue(valueWithCalculation));
+ else if (value->unit == CSSParserValue::Function
+ && value->function->args
+ && value->function->args->size() == 1
+ && equalLettersIgnoringASCIICase(value->function->name, "repeat(")) {
+ ValueWithCalculation argumentWithCalculation(*value->function->args.get()->current());
+ if (validateUnit(argumentWithCalculation, FLength | FPercent | FNonNeg)) {
+ values->append(CSSValuePool::singleton().createValue(LengthRepeat::create(createPrimitiveNumericValue(argumentWithCalculation))));
+ m_valueList->next();
+ if (m_valueList->current())
+ return false;
+ break;
+ }
+ } else
+ return false;
+ m_valueList->next();
+ }
+ if (values->length()) {
+ addProperty(propId, WTFMove(values), important);
+ m_valueList->next();
+ return true;
+ }
+ return false;
+}
+
+bool CSSParser::parseScrollSnapPositions(RefPtr<CSSValue>& cssValueX, RefPtr<CSSValue>& cssValueY)
+{
+ cssValueX = parsePositionX(*m_valueList);
+ if (!cssValueX)
+ return false;
+
+ // Don't accept odd-length lists of positions (must always have an X and a Y):
+ if (!m_valueList->next())
+ return false;
+
+ cssValueY = parsePositionY(*m_valueList);
+ if (!cssValueY)
+ return false;
+
+ return true;
+}
+
+bool CSSParser::parseScrollSnapDestination(CSSPropertyID propId, bool important)
+{
+ auto position = CSSValueList::createSpaceSeparated();
+ if (m_valueList->size() != 2)
+ return false;
+
+ RefPtr<CSSValue> cssValueX, cssValueY;
+ if (!parseScrollSnapPositions(cssValueX, cssValueY))
+ return false;
+
+ position->append(cssValueX.releaseNonNull());
+ position->append(cssValueY.releaseNonNull());
+ addProperty(propId, WTFMove(position), important);
+ m_valueList->next();
+ return true;
+}
+
+bool CSSParser::parseScrollSnapCoordinate(CSSPropertyID propId, bool important)
+{
+ auto positions = CSSValueList::createSpaceSeparated();
+ while (m_valueList->current()) {
+ RefPtr<CSSValue> cssValueX, cssValueY;
+ if (!parseScrollSnapPositions(cssValueX, cssValueY))
+ return false;
+
+ positions->append(cssValueX.releaseNonNull());
+ positions->append(cssValueY.releaseNonNull());
+ m_valueList->next();
+ }
+
+ if (positions->length()) {
+ addProperty(propId, WTFMove(positions), important);
+ return true;
+ }
+ return false;
+}
+#endif
+
+const int cMaxFillProperties = 9;
+
+bool CSSParser::parseFillShorthand(CSSPropertyID propId, const CSSPropertyID* properties, int numProperties, bool important)
+{
+ ASSERT(numProperties <= cMaxFillProperties);
+ if (numProperties > cMaxFillProperties)
+ return false;
+
+ ShorthandScope scope(this, propId);
+
+ bool parsedProperty[cMaxFillProperties] = { false };
+ RefPtr<CSSValue> values[cMaxFillProperties];
+ RefPtr<CSSValue> clipValue;
+ RefPtr<CSSValue> positionYValue;
+ RefPtr<CSSValue> repeatYValue;
+ bool foundClip = false;
+ int i;
+ bool foundPositionCSSProperty = false;
+
+ auto& cssValuePool = CSSValuePool::singleton();
+ while (m_valueList->current()) {
+ CSSParserValue& currentValue = *m_valueList->current();
+ if (currentValue.unit == CSSParserValue::Operator && currentValue.iValue == ',') {
+ // We hit the end. Fill in all remaining values with the initial value.
+ m_valueList->next();
+ for (i = 0; i < numProperties; ++i) {
+ if (properties[i] == CSSPropertyBackgroundColor && parsedProperty[i])
+ // Color is not allowed except as the last item in a list for backgrounds.
+ // Reject the entire property.
+ return false;
+
+ if (!parsedProperty[i] && properties[i] != CSSPropertyBackgroundColor) {
+ addFillValue(values[i], cssValuePool.createImplicitInitialValue());
+ if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
+ addFillValue(positionYValue, cssValuePool.createImplicitInitialValue());
+ if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
+ addFillValue(repeatYValue, cssValuePool.createImplicitInitialValue());
+ if ((properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) && !parsedProperty[i]) {
+ // If background-origin wasn't present, then reset background-clip also.
+ addFillValue(clipValue, cssValuePool.createImplicitInitialValue());
+ }
+ }
+ parsedProperty[i] = false;
+ }
+ if (!m_valueList->current())
+ break;
+ }
+
+ bool sizeCSSPropertyExpected = false;
+ if (isForwardSlashOperator(currentValue) && foundPositionCSSProperty) {
+ sizeCSSPropertyExpected = true;
+ m_valueList->next();
+ }
+
+ foundPositionCSSProperty = false;
+ bool found = false;
+ for (i = 0; !found && i < numProperties; ++i) {
+
+ if (sizeCSSPropertyExpected && (properties[i] != CSSPropertyBackgroundSize && properties[i] != CSSPropertyWebkitMaskSize))
+ continue;
+ if (!sizeCSSPropertyExpected && (properties[i] == CSSPropertyBackgroundSize || properties[i] == CSSPropertyWebkitMaskSize))
+ continue;
+
+ if (!parsedProperty[i]) {
+ RefPtr<CSSValue> val1;
+ RefPtr<CSSValue> val2;
+ CSSPropertyID propId1, propId2;
+ CSSParserValue& parserValue = *m_valueList->current();
+
+ if (parseFillProperty(properties[i], propId1, propId2, val1, val2)) {
+ parsedProperty[i] = found = true;
+ addFillValue(values[i], val1.releaseNonNull());
+ if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
+ addFillValue(positionYValue, val2.releaseNonNull());
+ if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
+ addFillValue(repeatYValue, val2.releaseNonNull());
+ if (properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) {
+ // Reparse the value as a clip, and see if we succeed.
+ if (parseBackgroundClip(parserValue, val1))
+ addFillValue(clipValue, val1.releaseNonNull()); // The property parsed successfully.
+ else
+ addFillValue(clipValue, cssValuePool.createImplicitInitialValue()); // Some value was used for origin that is not supported by clip. Just reset clip instead.
+ }
+ if (properties[i] == CSSPropertyBackgroundClip || properties[i] == CSSPropertyWebkitMaskClip)
+ foundClip = true;
+ if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
+ foundPositionCSSProperty = true;
+ }
+ }
+ }
+
+ // if we didn't find at least one match, this is an
+ // invalid shorthand and we have to ignore it
+ if (!found)
+ return false;
+ }
+
+ // Now add all of the properties we found.
+ for (i = 0; i < numProperties; ++i) {
+ // Fill in any remaining properties with the initial value.
+ if (!parsedProperty[i]) {
+ addFillValue(values[i], cssValuePool.createImplicitInitialValue());
+ if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
+ addFillValue(positionYValue, cssValuePool.createImplicitInitialValue());
+ if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
+ addFillValue(repeatYValue, cssValuePool.createImplicitInitialValue());
+ if (properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) {
+ // If background-origin wasn't present, then reset background-clip also.
+ addFillValue(clipValue, cssValuePool.createImplicitInitialValue());
+ }
+ }
+ if (properties[i] == CSSPropertyBackgroundPosition) {
+ addProperty(CSSPropertyBackgroundPositionX, WTFMove(values[i]), important);
+ // it's OK to call WTFMove(positionYValue) since we only see CSSPropertyBackgroundPosition once
+ addProperty(CSSPropertyBackgroundPositionY, WTFMove(positionYValue), important);
+ } else if (properties[i] == CSSPropertyWebkitMaskPosition) {
+ addProperty(CSSPropertyWebkitMaskPositionX, WTFMove(values[i]), important);
+ // it's OK to call WTFMove(positionYValue) since we only see CSSPropertyWebkitMaskPosition once
+ addProperty(CSSPropertyWebkitMaskPositionY, WTFMove(positionYValue), important);
+ } else if (properties[i] == CSSPropertyBackgroundRepeat) {
+ addProperty(CSSPropertyBackgroundRepeatX, WTFMove(values[i]), important);
+ // it's OK to call WTFMove(repeatYValue) since we only see CSSPropertyBackgroundPosition once
+ addProperty(CSSPropertyBackgroundRepeatY, WTFMove(repeatYValue), important);
+ } else if (properties[i] == CSSPropertyWebkitMaskRepeat) {
+ addProperty(CSSPropertyWebkitMaskRepeatX, WTFMove(values[i]), important);
+ // it's OK to call WTFMove(repeatYValue) since we only see CSSPropertyBackgroundPosition once
+ addProperty(CSSPropertyWebkitMaskRepeatY, WTFMove(repeatYValue), important);
+ } else if ((properties[i] == CSSPropertyBackgroundClip || properties[i] == CSSPropertyWebkitMaskClip) && !foundClip)
+ // Value is already set while updating origin
+ continue;
+ else if (properties[i] == CSSPropertyBackgroundSize && !parsedProperty[i] && useLegacyBackgroundSizeShorthandBehavior())
+ continue;
+ else
+ addProperty(properties[i], WTFMove(values[i]), important);
+
+ // Add in clip values when we hit the corresponding origin property.
+ if (properties[i] == CSSPropertyBackgroundOrigin && !foundClip)
+ addProperty(CSSPropertyBackgroundClip, WTFMove(clipValue), important);
+ else if (properties[i] == CSSPropertyWebkitMaskOrigin && !foundClip)
+ addProperty(CSSPropertyWebkitMaskClip, WTFMove(clipValue), important);
+ }
+
+ return true;
+}
+
+void CSSParser::addAnimationValue(RefPtr<CSSValue>& lval, Ref<CSSValue>&& rval)
+{
+ if (!lval) {
+ lval = WTFMove(rval);
+ return;
+ }
+
+ if (is<CSSValueList>(*lval)) {
+ downcast<CSSValueList>(*lval).append(WTFMove(rval));
+ return;
+ }
+
+ auto list = CSSValueList::createCommaSeparated();
+ list->append(lval.releaseNonNull());
+ list->append(WTFMove(rval));
+ lval = WTFMove(list);
+}
+
+bool CSSParser::parseAnimationShorthand(CSSPropertyID propId, bool important)
+{
+ ASSERT(propId == CSSPropertyAnimation || propId == CSSPropertyWebkitAnimation);
+
+ const unsigned numProperties = 8;
+ const StylePropertyShorthand& shorthand = animationShorthandForParsing(propId);
+
+ // The list of properties in the shorthand should be the same
+ // length as the list with animation name in last position, even though they are
+ // in a different order.
+ ASSERT(numProperties == shorthand.length());
+ ASSERT(numProperties == animationShorthand().length());
+ ASSERT(numProperties == webkitAnimationShorthand().length());
+
+ ShorthandScope scope(this, propId);
+
+ bool parsedProperty[numProperties] = { false };
+ AnimationParseContext context;
+ RefPtr<CSSValue> values[numProperties];
+
+ auto& cssValuePool = CSSValuePool::singleton();
+ unsigned i;
+ while (m_valueList->current()) {
+ CSSParserValue* val = m_valueList->current();
+ if (val->unit == CSSParserValue::Operator && val->iValue == ',') {
+ // We hit the end. Fill in all remaining values with the initial value.
+ m_valueList->next();
+ for (i = 0; i < numProperties; ++i) {
+ if (!parsedProperty[i])
+ addAnimationValue(values[i], cssValuePool.createImplicitInitialValue());
+ parsedProperty[i] = false;
+ }
+ if (!m_valueList->current())
+ break;
+ context.commitFirstAnimation();
+ }
+
+ bool found = false;
+ for (i = 0; i < numProperties; ++i) {
+ if (!parsedProperty[i]) {
+ RefPtr<CSSValue> val;
+ if (parseAnimationProperty(shorthand.properties()[i], val, context)) {
+ parsedProperty[i] = found = true;
+ addAnimationValue(values[i], val.releaseNonNull());
+ break;
+ }
+ }
+
+ // There are more values to process but 'none' or 'all' were already defined as the animation property, the declaration becomes invalid.
+ if (!context.animationPropertyKeywordAllowed() && context.hasCommittedFirstAnimation())
+ return false;
+ }
+
+ // if we didn't find at least one match, this is an
+ // invalid shorthand and we have to ignore it
+ if (!found)
+ return false;
+ }
+
+ // Fill in any remaining properties with the initial value.
+ for (i = 0; i < numProperties; ++i) {
+ if (!parsedProperty[i])
+ addAnimationValue(values[i], cssValuePool.createImplicitInitialValue());
+ }
+
+ // Now add all of the properties we found.
+ // In this case we have to explicitly set the variant form as well,
+ // to make sure that a shorthand clears all existing prefixed and
+ // unprefixed values.
+ for (i = 0; i < numProperties; ++i)
+ addPropertyWithPrefixingVariant(shorthand.properties()[i], WTFMove(values[i]), important);
+
+ return true;
+}
+
+void CSSParser::addPropertyWithPrefixingVariant(CSSPropertyID propId, RefPtr<CSSValue>&& value, bool important, bool implicit)
+{
+ addProperty(propId, value.copyRef(), important, implicit);
+
+ CSSPropertyID prefixingVariant = prefixingVariantForPropertyId(propId);
+ if (prefixingVariant == propId)
+ return;
+
+ if (m_currentShorthand) {
+ // We can't use ShorthandScope here as we can already be inside one (e.g we are parsing CSSTransition).
+ m_currentShorthand = prefixingVariantForPropertyId(m_currentShorthand);
+ addProperty(prefixingVariant, WTFMove(value), important, implicit);
+ m_currentShorthand = prefixingVariantForPropertyId(m_currentShorthand);
+ } else
+ addProperty(prefixingVariant, WTFMove(value), important, implicit);
+}
+
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseColumnWidth()
+{
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ CSSValueID id = valueWithCalculation.value().id;
+ // Always parse this property in strict mode, since it would be ambiguous otherwise when used in the 'columns' shorthand property.
+ if (id != CSSValueAuto && !(validateUnit(valueWithCalculation, FLength | FNonNeg, CSSStrictMode) && parsedDouble(valueWithCalculation)))
+ return nullptr;
+
+ auto parsedValue = parseValidPrimitive(id, valueWithCalculation);
+ m_valueList->next();
+ return parsedValue;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseColumnCount()
+{
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ CSSValueID id = valueWithCalculation.value().id;
+
+ if (id != CSSValueAuto && !validateUnit(valueWithCalculation, FPositiveInteger, CSSQuirksMode))
+ return nullptr;
+
+ auto parsedValue = parseValidPrimitive(id, valueWithCalculation);
+ m_valueList->next();
+ return parsedValue;
+}
+
+bool CSSParser::parseColumnsShorthand(bool important)
+{
+ RefPtr<CSSValue> columnWidth;
+ RefPtr<CSSValue> columnCount;
+ bool hasPendingExplicitAuto = false;
+
+ for (unsigned propertiesParsed = 0; CSSParserValue* value = m_valueList->current(); ++propertiesParsed) {
+ if (propertiesParsed >= 2)
+ return false; // Too many values for this shorthand. Invalid declaration.
+ if (!propertiesParsed && value->id == CSSValueAuto) {
+ // 'auto' is a valid value for any of the two longhands, and at this point
+ // we don't know which one(s) it is meant for. We need to see if there are other values first.
+ m_valueList->next();
+ hasPendingExplicitAuto = true;
+ } else {
+ if (!columnWidth) {
+ if ((columnWidth = parseColumnWidth()))
+ continue;
+ }
+ if (!columnCount) {
+ if ((columnCount = parseColumnCount()))
+ continue;
+ }
+ // If we didn't find at least one match, this is an invalid shorthand and we have to ignore it.
+ return false;
+ }
+ }
+
+ // Any unassigned property at this point will become implicit 'auto'.
+ if (columnWidth)
+ addProperty(CSSPropertyColumnWidth, WTFMove(columnWidth), important);
+ else {
+ addProperty(CSSPropertyColumnWidth, CSSValuePool::singleton().createIdentifierValue(CSSValueAuto), important, !hasPendingExplicitAuto /* implicit */);
+ hasPendingExplicitAuto = false;
+ }
+
+ if (columnCount)
+ addProperty(CSSPropertyColumnCount, WTFMove(columnCount), important);
+ else
+ addProperty(CSSPropertyColumnCount, CSSValuePool::singleton().createIdentifierValue(CSSValueAuto), important, !hasPendingExplicitAuto /* implicit */);
+
+ return true;
+}
+
+bool CSSParser::parseTransitionShorthand(CSSPropertyID propId, bool important)
+{
+ const unsigned numProperties = 4;
+ const StylePropertyShorthand& shorthand = shorthandForProperty(propId);
+ ASSERT(numProperties == shorthand.length());
+
+ ShorthandScope scope(this, propId);
+
+ bool parsedProperty[numProperties] = { false };
+ AnimationParseContext context;
+ RefPtr<CSSValue> values[numProperties];
+
+ auto& cssValuePool = CSSValuePool::singleton();
+ unsigned i;
+ while (m_valueList->current()) {
+ CSSParserValue* val = m_valueList->current();
+ if (val->unit == CSSParserValue::Operator && val->iValue == ',') {
+ // We hit the end. Fill in all remaining values with the initial value.
+ m_valueList->next();
+ for (i = 0; i < numProperties; ++i) {
+ if (!parsedProperty[i])
+ addAnimationValue(values[i], cssValuePool.createImplicitInitialValue());
+ parsedProperty[i] = false;
+ }
+ if (!m_valueList->current())
+ break;
+ context.commitFirstAnimation();
+ }
+
+ bool found = false;
+ for (i = 0; !found && i < numProperties; ++i) {
+ if (!parsedProperty[i]) {
+ RefPtr<CSSValue> val;
+ if (parseAnimationProperty(shorthand.properties()[i], val, context)) {
+ parsedProperty[i] = found = true;
+ addAnimationValue(values[i], val.releaseNonNull());
+ }
+
+ // There are more values to process but 'none' or 'all' were already defined as the animation property, the declaration becomes invalid.
+ if (!context.animationPropertyKeywordAllowed() && context.hasCommittedFirstAnimation())
+ return false;
+ }
+ }
+
+ // if we didn't find at least one match, this is an
+ // invalid shorthand and we have to ignore it
+ if (!found)
+ return false;
+ }
+
+ // Fill in any remaining properties with the initial value.
+ for (i = 0; i < numProperties; ++i) {
+ if (!parsedProperty[i])
+ addAnimationValue(values[i], cssValuePool.createImplicitInitialValue());
+ }
+
+ // Now add all of the properties we found.
+ // In this case we have to explicitly set the variant form as well,
+ // to make sure that a shorthand clears all existing prefixed and
+ // unprefixed values.
+ for (i = 0; i < numProperties; ++i)
+ addPropertyWithPrefixingVariant(shorthand.properties()[i], WTFMove(values[i]), important);
+
+ return true;
+}
+
+bool CSSParser::parseShorthand(CSSPropertyID propId, const StylePropertyShorthand& shorthand, bool important)
+{
+ // We try to match as many properties as possible
+ // We set up an array of booleans to mark which property has been found,
+ // and we try to search for properties until it makes no longer any sense.
+ ShorthandScope scope(this, propId);
+
+ bool found = false;
+ unsigned propertiesParsed = 0;
+ bool propertyFound[6]= { false, false, false, false, false, false }; // 6 is enough size.
+
+ while (m_valueList->current()) {
+ found = false;
+ for (unsigned propIndex = 0; !found && propIndex < shorthand.length(); ++propIndex) {
+ if (!propertyFound[propIndex] && parseValue(shorthand.properties()[propIndex], important)) {
+ propertyFound[propIndex] = found = true;
+ propertiesParsed++;
+ }
+ }
+
+ // if we didn't find at least one match, this is an
+ // invalid shorthand and we have to ignore it
+ if (!found)
+ return false;
+ }
+
+ if (propertiesParsed == shorthand.length())
+ return true;
+
+ // Fill in any remaining properties with the initial value.
+ auto& cssValuePool = CSSValuePool::singleton();
+ ImplicitScope implicitScope(*this, PropertyImplicit);
+ const StylePropertyShorthand* propertiesForInitialization = shorthand.propertiesForInitialization();
+ for (unsigned i = 0; i < shorthand.length(); ++i) {
+ if (propertyFound[i])
+ continue;
+
+ if (propertiesForInitialization) {
+ const StylePropertyShorthand& initProperties = propertiesForInitialization[i];
+ for (unsigned propIndex = 0; propIndex < initProperties.length(); ++propIndex)
+ addProperty(initProperties.properties()[propIndex], cssValuePool.createImplicitInitialValue(), important);
+ } else
+ addProperty(shorthand.properties()[i], cssValuePool.createImplicitInitialValue(), important);
+ }
+
+ return true;
+}
+
+bool CSSParser::parse4Values(CSSPropertyID propId, const CSSPropertyID *properties, bool important)
+{
+ /* From the CSS 2 specs, 8.3
+ * If there is only one value, it applies to all sides. If there are two values, the top and
+ * bottom margins are set to the first value and the right and left margins are set to the second.
+ * If there are three values, the top is set to the first value, the left and right are set to the
+ * second, and the bottom is set to the third. If there are four values, they apply to the top,
+ * right, bottom, and left, respectively.
+ */
+
+ unsigned num = inShorthand() ? 1 : m_valueList->size();
+
+ ShorthandScope scope(this, propId);
+
+ // the order is top, right, bottom, left
+ switch (num) {
+ case 1: {
+ if (!parseValue(properties[0], important))
+ return false;
+ CSSValue* value = m_parsedProperties.last().value();
+ ImplicitScope implicitScope(*this, PropertyImplicit);
+ addProperty(properties[1], value, important);
+ addProperty(properties[2], value, important);
+ addProperty(properties[3], value, important);
+ break;
+ }
+ case 2: {
+ if (!parseValue(properties[0], important) || !parseValue(properties[1], important))
+ return false;
+ CSSValue* value = m_parsedProperties[m_parsedProperties.size() - 2].value();
+ ImplicitScope implicitScope(*this, PropertyImplicit);
+ addProperty(properties[2], value, important);
+ value = m_parsedProperties[m_parsedProperties.size() - 2].value();
+ addProperty(properties[3], value, important);
+ break;
+ }
+ case 3: {
+ if (!parseValue(properties[0], important) || !parseValue(properties[1], important) || !parseValue(properties[2], important))
+ return false;
+ CSSValue* value = m_parsedProperties[m_parsedProperties.size() - 2].value();
+ ImplicitScope implicitScope(*this, PropertyImplicit);
+ addProperty(properties[3], value, important);
+ break;
+ }
+ case 4: {
+ if (!parseValue(properties[0], important) || !parseValue(properties[1], important) ||
+ !parseValue(properties[2], important) || !parseValue(properties[3], important))
+ return false;
+ break;
+ }
+ default: {
+ return false;
+ }
+ }
+
+ return true;
+}
+
+// auto | <identifier>
+bool CSSParser::parsePage(CSSPropertyID propId, bool important)
+{
+ ASSERT(propId == CSSPropertyPage);
+
+ if (m_valueList->size() != 1)
+ return false;
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return false;
+
+ if (value->id == CSSValueAuto) {
+ addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
+ return true;
+ } else if (value->id == 0 && value->unit == CSSPrimitiveValue::CSS_IDENT) {
+ addProperty(propId, createPrimitiveStringValue(*value), important);
+ return true;
+ }
+ return false;
+}
+
+// <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ]
+bool CSSParser::parseSize(CSSPropertyID propId, bool important)
+{
+ ASSERT(propId == CSSPropertySize);
+
+ if (m_valueList->size() > 2)
+ return false;
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return false;
+
+ auto parsedValues = CSSValueList::createSpaceSeparated();
+
+ // First parameter.
+ SizeParameterType paramType = parseSizeParameter(parsedValues, *value, None);
+ if (paramType == None)
+ return false;
+
+ // Second parameter, if any.
+ value = m_valueList->next();
+ if (value) {
+ paramType = parseSizeParameter(parsedValues, *value, paramType);
+ if (paramType == None)
+ return false;
+ }
+
+ addProperty(propId, WTFMove(parsedValues), important);
+ return true;
+}
+
+CSSParser::SizeParameterType CSSParser::parseSizeParameter(CSSValueList& parsedValues, CSSParserValue& value, SizeParameterType prevParamType)
+{
+ switch (value.id) {
+ case CSSValueAuto:
+ if (prevParamType == None) {
+ parsedValues.append(CSSValuePool::singleton().createIdentifierValue(value.id));
+ return Auto;
+ }
+ return None;
+ case CSSValueLandscape:
+ case CSSValuePortrait:
+ if (prevParamType == None || prevParamType == PageSize) {
+ parsedValues.append(CSSValuePool::singleton().createIdentifierValue(value.id));
+ return Orientation;
+ }
+ return None;
+ case CSSValueA3:
+ case CSSValueA4:
+ case CSSValueA5:
+ case CSSValueB4:
+ case CSSValueB5:
+ case CSSValueLedger:
+ case CSSValueLegal:
+ case CSSValueLetter:
+ if (prevParamType == None || prevParamType == Orientation) {
+ // Normalize to Page Size then Orientation order by prepending.
+ // This is not specified by the CSS3 Paged Media specification, but for simpler processing later (StyleResolver::applyPageSizeProperty).
+ parsedValues.prepend(CSSValuePool::singleton().createIdentifierValue(value.id));
+ return PageSize;
+ }
+ return None;
+ case CSSValueInvalid: {
+ ValueWithCalculation valueWithCalculation(value);
+ if (validateUnit(valueWithCalculation, FLength | FNonNeg) && (prevParamType == None || prevParamType == Length)) {
+ parsedValues.append(createPrimitiveNumericValue(valueWithCalculation));
+ return Length;
+ }
+ return None;
+ }
+ default:
+ return None;
+ }
+}
+
+// [ <string> <string> ]+ | inherit | none
+// inherit and none are handled in parseValue.
+bool CSSParser::parseQuotes(CSSPropertyID propId, bool important)
+{
+ auto values = CSSValueList::createCommaSeparated();
+ while (CSSParserValue* value = m_valueList->current()) {
+ if (value->unit != CSSPrimitiveValue::CSS_STRING)
+ break;
+ values->append(CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_STRING));
+ m_valueList->next();
+ }
+ if (values->length()) {
+ addProperty(propId, WTFMove(values), important);
+ m_valueList->next();
+ return true;
+ }
+ return false;
+}
+
+bool CSSParser::parseAlt(CSSPropertyID propID, bool important)
+{
+ CSSParserValue& currentValue = *m_valueList->current();
+ RefPtr<CSSValue> parsedValue;
+
+ if (currentValue.unit == CSSPrimitiveValue::CSS_STRING)
+ parsedValue = createPrimitiveStringValue(currentValue);
+ else if (currentValue.unit == CSSParserValue::Function) {
+ CSSParserValueList* args = currentValue.function->args.get();
+ if (!args)
+ return false;
+ if (equalLettersIgnoringASCIICase(currentValue.function->name, "attr("))
+ parsedValue = parseAttr(*args);
+ }
+
+ if (parsedValue) {
+ addProperty(propID, parsedValue.releaseNonNull(), important);
+ m_valueList->next();
+ return true;
+ }
+
+ return false;
+}
+
+bool CSSParser::parseCustomPropertyDeclaration(bool important, CSSValueID id)
+{
+ if (m_customPropertyName.isEmpty() || !m_valueList)
+ return false;
+
+ auto& cssValuePool = CSSValuePool::singleton();
+ RefPtr<CSSValue> value;
+ if (id == CSSValueInherit)
+ value = cssValuePool.createInheritedValue();
+ else if (id == CSSValueInitial)
+ value = cssValuePool.createExplicitInitialValue();
+ else if (id == CSSValueUnset)
+ value = cssValuePool.createUnsetValue();
+ else if (id == CSSValueRevert)
+ value = cssValuePool.createRevertValue();
+ else {
+ auto valueList = CSSValueList::createFromParserValueList(*m_valueList);
+ if (m_valueList->containsVariables())
+ value = CSSVariableDependentValue::create(WTFMove(valueList), CSSPropertyCustom);
+ else
+ value = WTFMove(valueList);
+ }
+
+ addProperty(CSSPropertyCustom, CSSCustomPropertyValue::create(m_customPropertyName, value.releaseNonNull()), important, false);
+ return true;
+}
+
+// [ <string> | <uri> | <counter> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit
+// in CSS 2.1 this got somewhat reduced:
+// [ <string> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit
+bool CSSParser::parseContent(CSSPropertyID propId, bool important)
+{
+ auto values = CSSValueList::createCommaSeparated();
+
+ while (CSSParserValue* value = m_valueList->current()) {
+ RefPtr<CSSValue> parsedValue;
+ if (value->unit == CSSPrimitiveValue::CSS_URI) {
+ // url
+ parsedValue = CSSImageValue::create(completeURL(value->string));
+ } else if (value->unit == CSSParserValue::Function) {
+ // attr(X) | counter(X [,Y]) | counters(X, Y, [,Z]) | -webkit-gradient(...)
+ CSSParserValueList* args = value->function->args.get();
+ if (!args)
+ return false;
+ if (equalLettersIgnoringASCIICase(value->function->name, "attr(")) {
+ parsedValue = parseAttr(*args);
+ if (!parsedValue)
+ return false;
+ } else if (equalLettersIgnoringASCIICase(value->function->name, "counter(")) {
+ parsedValue = parseCounterContent(*args, false);
+ if (!parsedValue)
+ return false;
+ } else if (equalLettersIgnoringASCIICase(value->function->name, "counters(")) {
+ parsedValue = parseCounterContent(*args, true);
+ if (!parsedValue)
+ return false;
+ } else if (isImageSetFunctionValue(*value)) {
+ parsedValue = parseImageSet();
+ if (!parsedValue)
+ return false;
+ } else if (isGeneratedImageValue(*value)) {
+ if (!parseGeneratedImage(*m_valueList, parsedValue))
+ return false;
+ } else
+ return false;
+ } else if (value->unit == CSSPrimitiveValue::CSS_IDENT) {
+ // open-quote
+ // close-quote
+ // no-open-quote
+ // no-close-quote
+ // inherit
+ // FIXME: These are not yet implemented (http://bugs.webkit.org/show_bug.cgi?id=6503).
+ // none
+ // normal
+ switch (value->id) {
+ case CSSValueOpenQuote:
+ case CSSValueCloseQuote:
+ case CSSValueNoOpenQuote:
+ case CSSValueNoCloseQuote:
+ case CSSValueNone:
+ case CSSValueNormal:
+ parsedValue = CSSValuePool::singleton().createIdentifierValue(value->id);
+ break;
+ default:
+ break;
+ }
+ } else if (value->unit == CSSPrimitiveValue::CSS_STRING) {
+ parsedValue = createPrimitiveStringValue(*value);
+ }
+ if (!parsedValue)
+ break;
+ values->append(parsedValue.releaseNonNull());
+ m_valueList->next();
+ }
+
+ if (values->length()) {
+ addProperty(propId, WTFMove(values), important);
+ m_valueList->next();
+ return true;
+ }
+
+ return false;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAttr(CSSParserValueList& args)
+{
+ if (args.size() != 1)
+ return nullptr;
+
+ CSSParserValue& argument = *args.current();
+
+ if (argument.unit != CSSPrimitiveValue::CSS_IDENT)
+ return nullptr;
+
+ ASSERT(argument.string.length());
+
+ // CSS allows identifiers with "-" at the start, like "-webkit-mask-image".
+ // But HTML attribute names can't have those characters, and we should not
+ // even parse them inside attr().
+ if (argument.string[0] == '-')
+ return nullptr;
+
+ if (m_context.isHTMLDocument)
+ argument.string.convertToASCIILowercaseInPlace();
+
+ // FIXME: Is there some small benefit to creating an AtomicString here instead of a String?
+ return CSSValuePool::singleton().createValue(String(argument.string), CSSPrimitiveValue::CSS_ATTR);
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseBackgroundColor()
+{
+ CSSValueID id = m_valueList->current()->id;
+ if (id == CSSValueWebkitText || isValidSystemColorValue(id) || id == CSSValueMenu || id == CSSValueCurrentcolor
+ || (id >= CSSValueGrey && id < CSSValueWebkitText && inQuirksMode()))
+ return CSSValuePool::singleton().createIdentifierValue(id);
+ return parseColor();
+}
+
+bool CSSParser::parseFillImage(CSSParserValueList& valueList, RefPtr<CSSValue>& value)
+{
+ if (valueList.current()->id == CSSValueNone) {
+ value = CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
+ return true;
+ }
+ if (valueList.current()->unit == CSSPrimitiveValue::CSS_URI) {
+ value = CSSImageValue::create(completeURL(valueList.current()->string));
+ return true;
+ }
+
+ if (isGeneratedImageValue(*valueList.current()))
+ return parseGeneratedImage(valueList, value);
+
+ if (isImageSetFunctionValue(*valueList.current())) {
+ value = parseImageSet();
+ if (value)
+ return true;
+ }
+
+ return false;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parsePositionX(CSSParserValueList& valueList)
+{
+ int id = valueList.current()->id;
+ if (id == CSSValueLeft || id == CSSValueRight || id == CSSValueCenter) {
+ int percent = 0;
+ if (id == CSSValueRight)
+ percent = 100;
+ else if (id == CSSValueCenter)
+ percent = 50;
+ return CSSValuePool::singleton().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
+ }
+ ValueWithCalculation valueWithCalculation(*valueList.current());
+ if (validateUnit(valueWithCalculation, FPercent | FLength))
+ return createPrimitiveNumericValue(valueWithCalculation);
+ return nullptr;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parsePositionY(CSSParserValueList& valueList)
+{
+ int id = valueList.current()->id;
+ if (id == CSSValueTop || id == CSSValueBottom || id == CSSValueCenter) {
+ int percent = 0;
+ if (id == CSSValueBottom)
+ percent = 100;
+ else if (id == CSSValueCenter)
+ percent = 50;
+ return CSSValuePool::singleton().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
+ }
+ ValueWithCalculation valueWithCalculation(*valueList.current());
+ if (validateUnit(valueWithCalculation, FPercent | FLength))
+ return createPrimitiveNumericValue(valueWithCalculation);
+ return nullptr;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseFillPositionComponent(CSSParserValueList& valueList, unsigned& cumulativeFlags, FillPositionFlag& individualFlag, FillPositionParsingMode parsingMode)
+{
+ CSSValueID id = valueList.current()->id;
+ if (id == CSSValueLeft || id == CSSValueTop || id == CSSValueRight || id == CSSValueBottom || id == CSSValueCenter) {
+ int percent = 0;
+ if (id == CSSValueLeft || id == CSSValueRight) {
+ if (cumulativeFlags & XFillPosition)
+ return nullptr;
+ cumulativeFlags |= XFillPosition;
+ individualFlag = XFillPosition;
+ if (id == CSSValueRight)
+ percent = 100;
+ }
+ else if (id == CSSValueTop || id == CSSValueBottom) {
+ if (cumulativeFlags & YFillPosition)
+ return nullptr;
+ cumulativeFlags |= YFillPosition;
+ individualFlag = YFillPosition;
+ if (id == CSSValueBottom)
+ percent = 100;
+ } else if (id == CSSValueCenter) {
+ // Center is ambiguous, so we're not sure which position we've found yet, an x or a y.
+ percent = 50;
+ cumulativeFlags |= AmbiguousFillPosition;
+ individualFlag = AmbiguousFillPosition;
+ }
+
+ if (parsingMode == ResolveValuesAsKeyword)
+ return CSSValuePool::singleton().createIdentifierValue(id);
+
+ return CSSValuePool::singleton().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
+ }
+ ValueWithCalculation valueWithCalculation(*valueList.current());
+ if (!validateUnit(valueWithCalculation, FPercent | FLength))
+ return nullptr;
+
+ if (!cumulativeFlags) {
+ cumulativeFlags |= XFillPosition;
+ individualFlag = XFillPosition;
+ } else if (cumulativeFlags & (XFillPosition | AmbiguousFillPosition)) {
+ cumulativeFlags |= YFillPosition;
+ individualFlag = YFillPosition;
+ } else
+ return nullptr;
+ return createPrimitiveNumericValue(valueWithCalculation);
+}
+
+static bool isValueConflictingWithCurrentEdge(int value1, int value2)
+{
+ if ((value1 == CSSValueLeft || value1 == CSSValueRight) && (value2 == CSSValueLeft || value2 == CSSValueRight))
+ return true;
+
+ if ((value1 == CSSValueTop || value1 == CSSValueBottom) && (value2 == CSSValueTop || value2 == CSSValueBottom))
+ return true;
+
+ return false;
+}
+
+static bool isFillPositionKeyword(CSSValueID value)
+{
+ return value == CSSValueLeft || value == CSSValueTop || value == CSSValueBottom || value == CSSValueRight || value == CSSValueCenter;
+}
+
+void CSSParser::parse4ValuesFillPosition(CSSParserValueList& valueList, RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2, Ref<CSSPrimitiveValue>&& parsedValue1, Ref<CSSPrimitiveValue>&& parsedValue2)
+{
+ // [ left | right ] [ <percentage] | <length> ] && [ top | bottom ] [ <percentage> | <length> ]
+ // In the case of 4 values <position> requires the second value to be a length or a percentage.
+ if (isFillPositionKeyword(parsedValue2->getValueID()))
+ return;
+
+ unsigned cumulativeFlags = 0;
+ FillPositionFlag value3Flag = InvalidFillPosition;
+ auto value3 = parseFillPositionComponent(valueList, cumulativeFlags, value3Flag, ResolveValuesAsKeyword);
+ if (!value3)
+ return;
+
+ CSSValueID ident1 = parsedValue1->getValueID();
+ CSSValueID ident3 = value3->getValueID();
+
+ if (ident1 == CSSValueCenter)
+ return;
+
+ if (!isFillPositionKeyword(ident3) || ident3 == CSSValueCenter)
+ return;
+
+ // We need to check if the values are not conflicting, e.g. they are not on the same edge. It is
+ // needed as the second call to parseFillPositionComponent was on purpose not checking it. In the
+ // case of two values top 20px is invalid but in the case of 4 values it becomes valid.
+ if (isValueConflictingWithCurrentEdge(ident1, ident3))
+ return;
+
+ valueList.next();
+
+ cumulativeFlags = 0;
+ FillPositionFlag value4Flag = InvalidFillPosition;
+ auto value4 = parseFillPositionComponent(valueList, cumulativeFlags, value4Flag, ResolveValuesAsKeyword);
+ if (!value4)
+ return;
+
+ // 4th value must be a length or a percentage.
+ if (isFillPositionKeyword(value4->getValueID()))
+ return;
+
+ value1 = createPrimitiveValuePair(WTFMove(parsedValue1), WTFMove(parsedValue2));
+ value2 = createPrimitiveValuePair(value3.releaseNonNull(), value4.releaseNonNull());
+
+ if (ident1 == CSSValueTop || ident1 == CSSValueBottom)
+ value1.swap(value2);
+
+ valueList.next();
+}
+
+void CSSParser::parse3ValuesFillPosition(CSSParserValueList& valueList, RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2, Ref<CSSPrimitiveValue>&& parsedValue1, Ref<CSSPrimitiveValue>&& parsedValue2)
+{
+ unsigned cumulativeFlags = 0;
+ FillPositionFlag value3Flag = InvalidFillPosition;
+ auto value3 = parseFillPositionComponent(valueList, cumulativeFlags, value3Flag, ResolveValuesAsKeyword);
+
+ // value3 is not an expected value, we return.
+ if (!value3)
+ return;
+
+ valueList.next();
+
+ bool swapNeeded = false;
+ CSSValueID ident1 = parsedValue1->getValueID();
+ CSSValueID ident2 = parsedValue2->getValueID();
+ CSSValueID ident3 = value3->getValueID();
+
+ CSSValueID firstPositionKeyword;
+ CSSValueID secondPositionKeyword;
+
+ auto& cssValuePool = CSSValuePool::singleton();
+ if (ident1 == CSSValueCenter) {
+ // <position> requires the first 'center' to be followed by a keyword.
+ if (!isFillPositionKeyword(ident2))
+ return;
+
+ // If 'center' is the first keyword then the last one needs to be a length.
+ if (isFillPositionKeyword(ident3))
+ return;
+
+ firstPositionKeyword = CSSValueLeft;
+ if (ident2 == CSSValueLeft || ident2 == CSSValueRight) {
+ firstPositionKeyword = CSSValueTop;
+ swapNeeded = true;
+ }
+ value1 = createPrimitiveValuePair(cssValuePool.createIdentifierValue(firstPositionKeyword), cssValuePool.createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE));
+ value2 = createPrimitiveValuePair(WTFMove(parsedValue2), value3.copyRef());
+ } else if (ident3 == CSSValueCenter) {
+ if (isFillPositionKeyword(ident2))
+ return;
+
+ secondPositionKeyword = CSSValueTop;
+ if (ident1 == CSSValueTop || ident1 == CSSValueBottom) {
+ secondPositionKeyword = CSSValueLeft;
+ swapNeeded = true;
+ }
+ value1 = createPrimitiveValuePair(WTFMove(parsedValue1), parsedValue2.copyRef());
+ value2 = createPrimitiveValuePair(cssValuePool.createIdentifierValue(secondPositionKeyword), cssValuePool.createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE));
+ } else {
+ RefPtr<CSSPrimitiveValue> firstPositionValue;
+ RefPtr<CSSPrimitiveValue> secondPositionValue;
+
+ if (isFillPositionKeyword(ident2)) {
+ // To match CSS grammar, we should only accept: [ center | left | right | bottom | top ] [ left | right | top | bottom ] [ <percentage> | <length> ].
+ ASSERT(ident2 != CSSValueCenter);
+
+ if (isFillPositionKeyword(ident3))
+ return;
+
+ secondPositionValue = value3;
+ secondPositionKeyword = ident2;
+ firstPositionValue = cssValuePool.createValue(0, CSSPrimitiveValue::CSS_PERCENTAGE);
+ } else {
+ // Per CSS, we should only accept: [ right | left | top | bottom ] [ <percentage> | <length> ] [ center | left | right | bottom | top ].
+ if (!isFillPositionKeyword(ident3))
+ return;
+
+ firstPositionValue = parsedValue2.ptr();
+ secondPositionKeyword = ident3;
+ secondPositionValue = cssValuePool.createValue(0, CSSPrimitiveValue::CSS_PERCENTAGE);
+ }
+
+ if (isValueConflictingWithCurrentEdge(ident1, secondPositionKeyword))
+ return;
+
+ value1 = createPrimitiveValuePair(WTFMove(parsedValue1), firstPositionValue.releaseNonNull());
+ value2 = createPrimitiveValuePair(cssValuePool.createIdentifierValue(secondPositionKeyword), secondPositionValue.releaseNonNull());
+ }
+
+ if (ident1 == CSSValueTop || ident1 == CSSValueBottom || swapNeeded)
+ value1.swap(value2);
+
+#ifndef NDEBUG
+ CSSPrimitiveValue& first = *value1;
+ CSSPrimitiveValue& second = *value2;
+ ident1 = first.getPairValue()->first()->getValueID();
+ ident2 = second.getPairValue()->first()->getValueID();
+ ASSERT(ident1 == CSSValueLeft || ident1 == CSSValueRight);
+ ASSERT(ident2 == CSSValueBottom || ident2 == CSSValueTop);
+#endif
+}
+
+inline bool CSSParser::isPotentialPositionValue(CSSParserValue& value)
+{
+ if (isFillPositionKeyword(value.id))
+ return true;
+ ValueWithCalculation valueWithCalculation(value);
+ return validateUnit(valueWithCalculation, FPercent | FLength);
+}
+
+void CSSParser::parseFillPosition(CSSParserValueList& valueList, RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2)
+{
+ unsigned numberOfValues = 0;
+ for (unsigned i = valueList.currentIndex(); i < valueList.size(); ++i, ++numberOfValues) {
+ CSSParserValue* current = valueList.valueAt(i);
+ if (!current || isComma(current) || isForwardSlashOperator(*current) || !isPotentialPositionValue(*current))
+ break;
+ }
+
+ if (numberOfValues > 4)
+ return;
+
+ // If we are parsing two values, we can safely call the CSS 2.1 parsing function and return.
+ if (numberOfValues <= 2) {
+ parse2ValuesFillPosition(valueList, value1, value2);
+ return;
+ }
+
+ ASSERT(numberOfValues > 2 && numberOfValues <= 4);
+
+ CSSParserValue* value = valueList.current();
+
+ // <position> requires the first value to be a background keyword.
+ if (!isFillPositionKeyword(value->id))
+ return;
+
+ // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length.
+ unsigned cumulativeFlags = 0;
+ FillPositionFlag value1Flag = InvalidFillPosition;
+ FillPositionFlag value2Flag = InvalidFillPosition;
+ value1 = parseFillPositionComponent(valueList, cumulativeFlags, value1Flag, ResolveValuesAsKeyword);
+ if (!value1)
+ return;
+
+ value = valueList.next();
+
+ // In case we are parsing more than two values, relax the check inside of parseFillPositionComponent. top 20px is
+ // a valid start for <position>.
+ cumulativeFlags = AmbiguousFillPosition;
+ value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag, ResolveValuesAsKeyword);
+ if (value2)
+ valueList.next();
+ else {
+ value1 = nullptr;
+ return;
+ }
+
+ auto parsedValue1 = value1.releaseNonNull();
+ auto parsedValue2 = value2.releaseNonNull();
+
+ // Per CSS3 syntax, <position> can't have 'center' as its second keyword as we have more arguments to follow.
+ if (parsedValue2->getValueID() == CSSValueCenter)
+ return;
+
+ if (numberOfValues == 3)
+ parse3ValuesFillPosition(valueList, value1, value2, WTFMove(parsedValue1), WTFMove(parsedValue2));
+ else
+ parse4ValuesFillPosition(valueList, value1, value2, WTFMove(parsedValue1), WTFMove(parsedValue2));
+}
+
+void CSSParser::parse2ValuesFillPosition(CSSParserValueList& valueList, RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2)
+{
+ CSSParserValue* value = valueList.current();
+
+ // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length.
+ unsigned cumulativeFlags = 0;
+ FillPositionFlag value1Flag = InvalidFillPosition;
+ FillPositionFlag value2Flag = InvalidFillPosition;
+ value1 = parseFillPositionComponent(valueList, cumulativeFlags, value1Flag);
+ if (!value1)
+ return;
+
+ // It only takes one value for background-position to be correctly parsed if it was specified in a shorthand (since we
+ // can assume that any other values belong to the rest of the shorthand). If we're not parsing a shorthand, though, the
+ // value was explicitly specified for our property.
+ value = valueList.next();
+
+ // First check for the comma. If so, we are finished parsing this value or value pair.
+ if (isComma(value))
+ value = nullptr;
+
+ if (value) {
+ value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag);
+ if (value2)
+ valueList.next();
+ else {
+ if (!inShorthand()) {
+ value1 = nullptr;
+ return;
+ }
+ }
+ }
+
+ if (!value2)
+ // Only one value was specified. If that value was not a keyword, then it sets the x position, and the y position
+ // is simply 50%. This is our default.
+ // For keywords, the keyword was either an x-keyword (left/right), a y-keyword (top/bottom), or an ambiguous keyword (center).
+ // For left/right/center, the default of 50% in the y is still correct.
+ value2 = CSSValuePool::singleton().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE);
+
+ if (value1Flag == YFillPosition || value2Flag == XFillPosition)
+ value1.swap(value2);
+}
+
+void CSSParser::parseFillRepeat(RefPtr<CSSValue>& value1, RefPtr<CSSValue>& value2)
+{
+ CSSValueID id = m_valueList->current()->id;
+ if (id == CSSValueRepeatX) {
+ m_implicitShorthand = true;
+ value1 = CSSValuePool::singleton().createIdentifierValue(CSSValueRepeat);
+ value2 = CSSValuePool::singleton().createIdentifierValue(CSSValueNoRepeat);
+ m_valueList->next();
+ return;
+ }
+ if (id == CSSValueRepeatY) {
+ m_implicitShorthand = true;
+ value1 = CSSValuePool::singleton().createIdentifierValue(CSSValueNoRepeat);
+ value2 = CSSValuePool::singleton().createIdentifierValue(CSSValueRepeat);
+ m_valueList->next();
+ return;
+ }
+ if (id == CSSValueRepeat || id == CSSValueNoRepeat || id == CSSValueRound || id == CSSValueSpace)
+ value1 = CSSValuePool::singleton().createIdentifierValue(id);
+ else {
+ value1 = nullptr;
+ return;
+ }
+
+ CSSParserValue* value = m_valueList->next();
+
+ // Parse the second value if one is available
+ if (value && !isComma(value)) {
+ id = value->id;
+ if (id == CSSValueRepeat || id == CSSValueNoRepeat || id == CSSValueRound || id == CSSValueSpace) {
+ value2 = CSSValuePool::singleton().createIdentifierValue(id);
+ m_valueList->next();
+ return;
+ }
+ }
+
+ // If only one value was specified, value2 is the same as value1.
+ m_implicitShorthand = true;
+ value2 = CSSValuePool::singleton().createIdentifierValue(downcast<CSSPrimitiveValue>(*value1).getValueID());
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseFillSize(CSSPropertyID propId, bool& allowComma)
+{
+ allowComma = true;
+ CSSParserValue* value = m_valueList->current();
+
+ if (value->id == CSSValueContain || value->id == CSSValueCover)
+ return CSSValuePool::singleton().createIdentifierValue(value->id);
+
+ RefPtr<CSSPrimitiveValue> parsedValue1;
+
+ if (value->id == CSSValueAuto)
+ parsedValue1 = CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
+ else {
+ ValueWithCalculation valueWithCalculation(*value);
+ if (!validateUnit(valueWithCalculation, FLength | FPercent))
+ return nullptr;
+ parsedValue1 = createPrimitiveNumericValue(valueWithCalculation);
+ }
+
+ RefPtr<CSSPrimitiveValue> parsedValue2;
+ if ((value = m_valueList->next())) {
+ if (value->unit == CSSParserValue::Operator && value->iValue == ',')
+ allowComma = false;
+ else if (value->id != CSSValueAuto) {
+ ValueWithCalculation valueWithCalculation(*value);
+ if (!validateUnit(valueWithCalculation, FLength | FPercent)) {
+ if (!inShorthand())
+ return nullptr;
+ // We need to rewind the value list, so that when it is advanced we'll end up back at this value.
+ m_valueList->previous();
+ } else
+ parsedValue2 = createPrimitiveNumericValue(valueWithCalculation);
+ }
+ } else if (!parsedValue2 && propId == CSSPropertyWebkitBackgroundSize) {
+ // For backwards compatibility we set the second value to the first if it is omitted.
+ // We only need to do this for -webkit-background-size. It should be safe to let masks match
+ // the real property.
+ parsedValue2 = parsedValue1;
+ }
+
+ if (!parsedValue2)
+ return parsedValue1;
+ return createPrimitiveValuePair(parsedValue1.releaseNonNull(), parsedValue2.releaseNonNull(), propId == CSSPropertyWebkitBackgroundSize ? Pair::IdenticalValueEncoding::Coalesce : Pair::IdenticalValueEncoding::DoNotCoalesce);
+}
+
+bool CSSParser::parseFillProperty(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2,
+ RefPtr<CSSValue>& retValue1, RefPtr<CSSValue>& retValue2)
+{
+ RefPtr<CSSValueList> values;
+ RefPtr<CSSValueList> values2;
+ CSSParserValue* currentValue;
+ RefPtr<CSSValue> value;
+ RefPtr<CSSValue> value2;
+
+ bool allowComma = false;
+
+ retValue1 = retValue2 = nullptr;
+ propId1 = propId;
+ propId2 = propId;
+ if (propId == CSSPropertyBackgroundPosition) {
+ propId1 = CSSPropertyBackgroundPositionX;
+ propId2 = CSSPropertyBackgroundPositionY;
+ } else if (propId == CSSPropertyWebkitMaskPosition) {
+ propId1 = CSSPropertyWebkitMaskPositionX;
+ propId2 = CSSPropertyWebkitMaskPositionY;
+ } else if (propId == CSSPropertyBackgroundRepeat) {
+ propId1 = CSSPropertyBackgroundRepeatX;
+ propId2 = CSSPropertyBackgroundRepeatY;
+ } else if (propId == CSSPropertyWebkitMaskRepeat) {
+ propId1 = CSSPropertyWebkitMaskRepeatX;
+ propId2 = CSSPropertyWebkitMaskRepeatY;
+ }
+
+ while ((currentValue = m_valueList->current())) {
+ RefPtr<CSSValue> currValue;
+ RefPtr<CSSValue> currValue2;
+
+ if (allowComma) {
+ if (!isComma(currentValue))
+ return false;
+ m_valueList->next();
+ allowComma = false;
+ } else {
+ allowComma = true;
+ switch (propId) {
+ case CSSPropertyBackgroundColor:
+ currValue = parseBackgroundColor();
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyBackgroundAttachment:
+ if (currentValue->id == CSSValueScroll || currentValue->id == CSSValueFixed || currentValue->id == CSSValueLocal) {
+ currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyBackgroundImage:
+ case CSSPropertyWebkitMaskImage:
+ if (parseFillImage(*m_valueList, currValue))
+ m_valueList->next();
+ break;
+ case CSSPropertyWebkitBackgroundClip:
+ case CSSPropertyWebkitBackgroundOrigin:
+ case CSSPropertyWebkitMaskClip:
+ case CSSPropertyWebkitMaskOrigin:
+ // The first three values here are deprecated and do not apply to the version of the property that has
+ // the -webkit- prefix removed.
+ if (currentValue->id == CSSValueBorder || currentValue->id == CSSValuePadding || currentValue->id == CSSValueContent
+ || currentValue->id == CSSValueBorderBox || currentValue->id == CSSValuePaddingBox || currentValue->id == CSSValueContentBox
+ || ((propId == CSSPropertyWebkitBackgroundClip || propId == CSSPropertyWebkitMaskClip)
+ && (currentValue->id == CSSValueText || currentValue->id == CSSValueWebkitText))) {
+ currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyBackgroundClip:
+ if (parseBackgroundClip(*currentValue, currValue))
+ m_valueList->next();
+ break;
+ case CSSPropertyBackgroundOrigin:
+ if (currentValue->id == CSSValueBorderBox || currentValue->id == CSSValuePaddingBox || currentValue->id == CSSValueContentBox) {
+ currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyBackgroundPosition:
+ case CSSPropertyWebkitMaskPosition: {
+ RefPtr<CSSPrimitiveValue> value1;
+ RefPtr<CSSPrimitiveValue> value2;
+ parseFillPosition(*m_valueList, value1, value2);
+ currValue = WTFMove(value1);
+ currValue2 = WTFMove(value2);
+ // parseFillPosition advances the m_valueList pointer.
+ break;
+ }
+ case CSSPropertyBackgroundPositionX:
+ case CSSPropertyWebkitMaskPositionX: {
+ currValue = parsePositionX(*m_valueList);
+ if (currValue)
+ m_valueList->next();
+ break;
+ }
+ case CSSPropertyBackgroundPositionY:
+ case CSSPropertyWebkitMaskPositionY: {
+ currValue = parsePositionY(*m_valueList);
+ if (currValue)
+ m_valueList->next();
+ break;
+ }
+ case CSSPropertyWebkitBackgroundComposite:
+ case CSSPropertyWebkitMaskComposite:
+ if (currentValue->id >= CSSValueClear && currentValue->id <= CSSValuePlusLighter) {
+ currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyBackgroundBlendMode:
+ if (currentValue->id == CSSValueNormal || currentValue->id == CSSValueMultiply
+ || currentValue->id == CSSValueScreen || currentValue->id == CSSValueOverlay || currentValue->id == CSSValueDarken
+ || currentValue->id == CSSValueLighten || currentValue->id == CSSValueColorDodge || currentValue->id == CSSValueColorBurn
+ || currentValue->id == CSSValueHardLight || currentValue->id == CSSValueSoftLight || currentValue->id == CSSValueDifference
+ || currentValue->id == CSSValueExclusion) {
+ currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyBackgroundRepeat:
+ case CSSPropertyWebkitMaskRepeat:
+ parseFillRepeat(currValue, currValue2);
+ // parseFillRepeat advances the m_valueList pointer
+ break;
+ case CSSPropertyBackgroundSize:
+ case CSSPropertyWebkitBackgroundSize:
+ case CSSPropertyWebkitMaskSize: {
+ currValue = parseFillSize(propId, allowComma);
+ if (currValue)
+ m_valueList->next();
+ break;
+ }
+ case CSSPropertyWebkitMaskSourceType: {
+ if (currentValue->id == CSSValueAuto || currentValue->id == CSSValueAlpha || currentValue->id == CSSValueLuminance) {
+ currValue = CSSValuePool::singleton().createIdentifierValue(currentValue->id);
+ m_valueList->next();
+ } else
+ currValue = nullptr;
+ break;
+ }
+ default:
+ break;
+ }
+ if (!currValue)
+ return false;
+
+ if (value && !values) {
+ values = CSSValueList::createCommaSeparated();
+ values->append(value.releaseNonNull());
+ }
+
+ if (value2 && !values2) {
+ values2 = CSSValueList::createCommaSeparated();
+ values2->append(value2.releaseNonNull());
+ }
+
+ if (values)
+ values->append(currValue.releaseNonNull());
+ else
+ value = WTFMove(currValue);
+ if (currValue2) {
+ if (values2)
+ values2->append(currValue2.releaseNonNull());
+ else
+ value2 = WTFMove(currValue2);
+ }
+ }
+
+ // When parsing any fill shorthand property, we let it handle building up the lists for all
+ // properties.
+ if (inShorthand())
+ break;
+ }
+
+ if (values && values->length()) {
+ retValue1 = WTFMove(values);
+ if (values2 && values2->length())
+ retValue2 = WTFMove(values2);
+ return true;
+ }
+ if (value) {
+ retValue1 = WTFMove(value);
+ retValue2 = WTFMove(value2);
+ return true;
+ }
+ return false;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationDelay()
+{
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ if (validateUnit(valueWithCalculation, FTime))
+ return createPrimitiveNumericValue(valueWithCalculation);
+ return nullptr;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationDirection()
+{
+ CSSParserValue* value = m_valueList->current();
+ if (value->id == CSSValueNormal || value->id == CSSValueAlternate || value->id == CSSValueReverse || value->id == CSSValueAlternateReverse)
+ return CSSValuePool::singleton().createIdentifierValue(value->id);
+ return nullptr;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationDuration()
+{
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ if (validateUnit(valueWithCalculation, FTime | FNonNeg))
+ return createPrimitiveNumericValue(valueWithCalculation);
+ return nullptr;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationFillMode()
+{
+ CSSParserValue* value = m_valueList->current();
+ if (value->id == CSSValueNone || value->id == CSSValueForwards || value->id == CSSValueBackwards || value->id == CSSValueBoth)
+ return CSSValuePool::singleton().createIdentifierValue(value->id);
+ return nullptr;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationIterationCount()
+{
+ CSSParserValue& value = *m_valueList->current();
+ if (value.id == CSSValueInfinite)
+ return CSSValuePool::singleton().createIdentifierValue(value.id);
+ ValueWithCalculation valueWithCalculation(value);
+ if (validateUnit(valueWithCalculation, FNumber | FNonNeg))
+ return createPrimitiveNumericValue(valueWithCalculation);
+ return nullptr;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationName()
+{
+ CSSParserValue& value = *m_valueList->current();
+ if (value.unit == CSSPrimitiveValue::CSS_STRING || value.unit == CSSPrimitiveValue::CSS_IDENT) {
+ if (value.id == CSSValueNone || (value.unit == CSSPrimitiveValue::CSS_STRING && equalLettersIgnoringASCIICase(value, "none"))) {
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
+ }
+ return createPrimitiveStringValue(value);
+ }
+ return nullptr;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationPlayState()
+{
+ CSSParserValue& value = *m_valueList->current();
+ if (value.id == CSSValueRunning || value.id == CSSValuePaused)
+ return CSSValuePool::singleton().createIdentifierValue(value.id);
+ return nullptr;
+}
+
+#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
+RefPtr<CSSValue> CSSParser::parseAnimationTrigger()
+{
+ CSSParserValue* value = m_valueList->current();
+ if (value->id == CSSValueAuto)
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
+
+ if (value->unit != CSSParserValue::Function)
+ return nullptr;
+
+ CSSParserValueList* args = value->function->args.get();
+
+ if (equalLettersIgnoringASCIICase(value->function->name, "container-scroll(")) {
+ if (!args || (args->size() != 1 && args->size() != 3))
+ return nullptr;
+
+ CSSParserValue* argument = args->current();
+ ValueWithCalculation firstArgumentWithCalculation(*argument);
+ if (!validateUnit(firstArgumentWithCalculation, FLength))
+ return nullptr;
+
+ auto startValue = createPrimitiveNumericValue(firstArgumentWithCalculation);
+
+ argument = args->next();
+
+ if (!argument)
+ return CSSAnimationTriggerScrollValue::create(WTFMove(startValue));
+
+ if (!isComma(argument))
+ return nullptr;
+
+ argument = args->next();
+ ValueWithCalculation secondArgumentWithCalculation(*argument);
+ if (!validateUnit(secondArgumentWithCalculation, FLength))
+ return nullptr;
+
+ auto endValue = createPrimitiveNumericValue(secondArgumentWithCalculation);
+
+ return CSSAnimationTriggerScrollValue::create(WTFMove(startValue), WTFMove(endValue));
+ }
+
+ return nullptr;
+}
+#endif
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseAnimationProperty(AnimationParseContext& context)
+{
+ CSSParserValue& value = *m_valueList->current();
+ if (value.unit != CSSPrimitiveValue::CSS_IDENT)
+ return nullptr;
+ CSSPropertyID result = cssPropertyID(value.string);
+ if (result && result != CSSPropertyAll) // "all" value in animation is not equivalent to the all property.
+ return CSSValuePool::singleton().createIdentifierValue(result);
+ if (equalLettersIgnoringASCIICase(value, "all")) {
+ context.sawAnimationPropertyKeyword();
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueAll);
+ }
+ if (equalLettersIgnoringASCIICase(value, "none")) {
+ context.commitAnimationPropertyKeyword();
+ context.sawAnimationPropertyKeyword();
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
+ }
+ return nullptr;
+}
+
+/* static */
+Vector<double> CSSParser::parseKeyframeSelector(const String& selector) {
+ Vector<double> keys;
+ Vector<String> strings;
+ selector.split(',', strings);
+
+ keys.reserveInitialCapacity(strings.size());
+ for (size_t i = 0; i < strings.size(); ++i) {
+ double key = -1;
+ String cur = strings[i].stripWhiteSpace();
+
+ // For now the syntax MUST be 'xxx%' or 'from' or 'to', where xxx is a legal floating point number
+ if (equalLettersIgnoringASCIICase(cur, "from"))
+ key = 0;
+ else if (equalLettersIgnoringASCIICase(cur, "to"))
+ key = 1;
+ else if (cur.endsWith('%')) {
+ double k = cur.substring(0, cur.length() - 1).toDouble();
+ if (k >= 0 && k <= 100)
+ key = k / 100;
+ }
+ if (key < 0) {
+ keys.clear();
+ break;
+ }
+ keys.uncheckedAppend(key);
+ }
+
+ return keys;
+}
+
+bool CSSParser::parseTransformOriginShorthand(RefPtr<CSSPrimitiveValue>& value1, RefPtr<CSSPrimitiveValue>& value2, RefPtr<CSSValue>& value3)
+{
+ parse2ValuesFillPosition(*m_valueList, value1, value2);
+
+ // now get z
+ if (m_valueList->current()) {
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ if (validateUnit(valueWithCalculation, FLength)) {
+ value3 = createPrimitiveNumericValue(valueWithCalculation);
+ m_valueList->next();
+ return true;
+ }
+ return false;
+ }
+ value3 = CSSValuePool::singleton().createImplicitInitialValue();
+ return true;
+}
+
+bool CSSParser::isSpringTimingFunctionEnabled() const
+{
+ return m_context.springTimingFunctionEnabled;
+}
+
+Optional<double> CSSParser::parseCubicBezierTimingFunctionValue(CSSParserValueList& args)
+{
+ ValueWithCalculation argumentWithCalculation(*args.current());
+ if (!validateUnit(argumentWithCalculation, FNumber))
+ return Nullopt;
+ Optional<double> result = parsedDouble(argumentWithCalculation);
+ CSSParserValue* nextValue = args.next();
+ if (!nextValue) {
+ // The last number in the function has no comma after it, so we're done.
+ return result;
+ }
+ if (!isComma(nextValue))
+ return Nullopt;
+ args.next();
+ return result;
+}
+
+Optional<double> CSSParser::parseSpringTimingFunctionValue(CSSParserValueList& args)
+{
+ ValueWithCalculation argumentWithCalculation(*args.current());
+ if (!validateUnit(argumentWithCalculation, FNumber))
+ return Nullopt;
+ Optional<double> result = parsedDouble(argumentWithCalculation);
+ args.next();
+ return result;
+}
+
+RefPtr<CSSValue> CSSParser::parseAnimationTimingFunction()
+{
+ CSSParserValue& value = *m_valueList->current();
+ if (value.id == CSSValueEase || value.id == CSSValueLinear || value.id == CSSValueEaseIn || value.id == CSSValueEaseOut
+ || value.id == CSSValueEaseInOut || value.id == CSSValueStepStart || value.id == CSSValueStepEnd)
+ return CSSValuePool::singleton().createIdentifierValue(value.id);
+
+ // We must be a function.
+ if (value.unit != CSSParserValue::Function)
+ return nullptr;
+
+ CSSParserValueList* args = value.function->args.get();
+
+ if (equalLettersIgnoringASCIICase(value.function->name, "steps(")) {
+ // For steps, 1 or 2 params must be specified (comma-separated)
+ if (!args || (args->size() != 1 && args->size() != 3))
+ return nullptr;
+
+ // There are two values.
+ int numSteps;
+ bool stepAtStart = false;
+
+ CSSParserValue* argument = args->current();
+ ValueWithCalculation argumentWithCalculation(*argument);
+ if (!validateUnit(argumentWithCalculation, FInteger))
+ return nullptr;
+ numSteps = clampToInteger(parsedDouble(argumentWithCalculation));
+ if (numSteps < 1)
+ return nullptr;
+ argument = args->next();
+
+ if (argument) {
+ // There is a comma so we need to parse the second value
+ if (!isComma(argument))
+ return nullptr;
+ argument = args->next();
+ if (argument->id != CSSValueStart && argument->id != CSSValueEnd)
+ return nullptr;
+ stepAtStart = argument->id == CSSValueStart;
+ }
+
+ return CSSStepsTimingFunctionValue::create(numSteps, stepAtStart);
+ }
+
+ if (equalLettersIgnoringASCIICase(value.function->name, "cubic-bezier(")) {
+ // For cubic bezier, 4 values must be specified (comma-separated).
+ if (!args || args->size() != 7)
+ return nullptr;
+
+ // There are two points specified. The x values must be between 0 and 1 but the y values can exceed this range.
+
+ auto x1 = parseCubicBezierTimingFunctionValue(*args);
+ if (!x1 || x1.value() < 0 || x1.value() > 1)
+ return nullptr;
+
+ auto y1 = parseCubicBezierTimingFunctionValue(*args);
+ if (!y1)
+ return nullptr;
+
+ auto x2 = parseCubicBezierTimingFunctionValue(*args);
+ if (!x2 || x2.value() < 0 || x2.value() > 1)
+ return nullptr;
+
+ auto y2 = parseCubicBezierTimingFunctionValue(*args);
+ if (!y2)
+ return nullptr;
+
+ return CSSCubicBezierTimingFunctionValue::create(x1.value(), y1.value(), x2.value(), y2.value());
+ }
+
+ if (isSpringTimingFunctionEnabled() && equalLettersIgnoringASCIICase(value.function->name, "spring(")) {
+ // For a spring, 4 values must be specified (space-separated).
+ // FIXME: Make the arguments all optional.
+ if (!args || args->size() != 4)
+ return nullptr;
+
+ // Mass must be greater than 0.
+ auto mass = parseSpringTimingFunctionValue(*args);
+ if (!mass || mass.value() <= 0)
+ return nullptr;
+
+ // Stiffness must be greater than 0.
+ auto stiffness = parseSpringTimingFunctionValue(*args);
+ if (!stiffness || stiffness.value() <= 0)
+ return nullptr;
+
+ // Damping coefficient must be greater than or equal to 0.
+ auto damping = parseSpringTimingFunctionValue(*args);
+ if (!damping || damping.value() < 0)
+ return nullptr;
+
+ // Initial velocity may have any value.
+ auto initialVelocity = parseSpringTimingFunctionValue(*args);
+ if (!initialVelocity)
+ return nullptr;
+
+ return CSSSpringTimingFunctionValue::create(mass.value(), stiffness.value(), damping.value(), initialVelocity.value());
+ }
+
+ return nullptr;
+}
+
+bool CSSParser::parseAnimationProperty(CSSPropertyID propId, RefPtr<CSSValue>& result, AnimationParseContext& context)
+{
+ RefPtr<CSSValueList> values;
+ CSSParserValue* val;
+ RefPtr<CSSValue> value;
+ bool allowComma = false;
+
+ result = nullptr;
+
+ while ((val = m_valueList->current())) {
+ RefPtr<CSSValue> currValue;
+ if (allowComma) {
+ if (!isComma(val))
+ return false;
+ m_valueList->next();
+ allowComma = false;
+ }
+ else {
+ switch (propId) {
+ case CSSPropertyAnimationDelay:
+ case CSSPropertyWebkitAnimationDelay:
+ case CSSPropertyTransitionDelay:
+ case CSSPropertyWebkitTransitionDelay:
+ currValue = parseAnimationDelay();
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyAnimationDirection:
+ case CSSPropertyWebkitAnimationDirection:
+ currValue = parseAnimationDirection();
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyAnimationDuration:
+ case CSSPropertyWebkitAnimationDuration:
+ case CSSPropertyTransitionDuration:
+ case CSSPropertyWebkitTransitionDuration:
+ currValue = parseAnimationDuration();
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyAnimationFillMode:
+ case CSSPropertyWebkitAnimationFillMode:
+ currValue = parseAnimationFillMode();
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyAnimationIterationCount:
+ case CSSPropertyWebkitAnimationIterationCount:
+ currValue = parseAnimationIterationCount();
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyAnimationName:
+ case CSSPropertyWebkitAnimationName:
+ currValue = parseAnimationName();
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyAnimationPlayState:
+ case CSSPropertyWebkitAnimationPlayState:
+ currValue = parseAnimationPlayState();
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyTransitionProperty:
+ case CSSPropertyWebkitTransitionProperty:
+ currValue = parseAnimationProperty(context);
+ if (value && !context.animationPropertyKeywordAllowed())
+ return false;
+ if (currValue)
+ m_valueList->next();
+ break;
+ case CSSPropertyAnimationTimingFunction:
+ case CSSPropertyWebkitAnimationTimingFunction:
+ case CSSPropertyTransitionTimingFunction:
+ case CSSPropertyWebkitTransitionTimingFunction:
+ currValue = parseAnimationTimingFunction();
+ if (currValue)
+ m_valueList->next();
+ break;
+#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
+ case CSSPropertyWebkitAnimationTrigger:
+ currValue = parseAnimationTrigger();
+ if (currValue)
+ m_valueList->next();
+ break;
+#endif
+ default:
+ ASSERT_NOT_REACHED();
+ return false;
+ }
+
+ if (!currValue)
+ return false;
+
+ if (value && !values) {
+ values = CSSValueList::createCommaSeparated();
+ values->append(value.releaseNonNull());
+ }
+
+ if (values)
+ values->append(currValue.releaseNonNull());
+ else
+ value = WTFMove(currValue);
+
+ allowComma = true;
+ }
+
+ // When parsing the 'transition' shorthand property, we let it handle building up the lists for all
+ // properties.
+ if (inShorthand())
+ break;
+ }
+
+ if (values && values->length()) {
+ result = WTFMove(values);
+ return true;
+ }
+ if (value) {
+ result = WTFMove(value);
+ return true;
+ }
+ return false;
+}
+
+#if ENABLE(CSS_GRID_LAYOUT)
+static inline bool isValidGridPositionCustomIdent(const CSSParserValue& value)
+{
+ return value.unit == CSSPrimitiveValue::CSS_IDENT && value.id != CSSValueSpan && value.id != CSSValueAuto;
+}
+
+// The function parses [ <integer> || <custom-ident> ] in <grid-line> (which can be stand alone or with 'span').
+bool CSSParser::parseIntegerOrCustomIdentFromGridPosition(RefPtr<CSSPrimitiveValue>& numericValue, RefPtr<CSSPrimitiveValue>& gridLineName)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ if (validateUnit(valueWithCalculation, FInteger) && valueWithCalculation.value().fValue) {
+ numericValue = createPrimitiveNumericValue(valueWithCalculation);
+ CSSParserValue* nextValue = m_valueList->next();
+ if (nextValue && isValidGridPositionCustomIdent(*nextValue)) {
+ gridLineName = createPrimitiveStringValue(*nextValue);
+ m_valueList->next();
+ }
+ return true;
+ }
+
+ if (isValidGridPositionCustomIdent(valueWithCalculation)) {
+ gridLineName = createPrimitiveStringValue(valueWithCalculation);
+ if (CSSParserValue* nextValue = m_valueList->next()) {
+ ValueWithCalculation nextValueWithCalculation(*nextValue);
+ if (validateUnit(nextValueWithCalculation, FInteger) && nextValueWithCalculation.value().fValue) {
+ numericValue = createPrimitiveNumericValue(nextValueWithCalculation);
+ m_valueList->next();
+ }
+ }
+ return true;
+ }
+
+ return false;
+}
+
+RefPtr<CSSValue> CSSParser::parseGridPosition()
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ CSSParserValue* value = m_valueList->current();
+ if (value->id == CSSValueAuto) {
+ m_valueList->next();
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
+ }
+
+ RefPtr<CSSPrimitiveValue> numericValue;
+ RefPtr<CSSPrimitiveValue> gridLineName;
+ bool hasSeenSpanKeyword = false;
+
+ if (value->id == CSSValueSpan) {
+ hasSeenSpanKeyword = true;
+ if (auto* nextValue = m_valueList->next()) {
+ if (!isForwardSlashOperator(*nextValue) && !parseIntegerOrCustomIdentFromGridPosition(numericValue, gridLineName))
+ return nullptr;
+ }
+ } else if (parseIntegerOrCustomIdentFromGridPosition(numericValue, gridLineName)) {
+ value = m_valueList->current();
+ if (value && value->id == CSSValueSpan) {
+ hasSeenSpanKeyword = true;
+ m_valueList->next();
+ }
+ }
+
+ // Check that we have consumed all the value list. For shorthands, the parser will pass
+ // the whole value list (including the opposite position).
+ if (m_valueList->current() && !isForwardSlashOperator(*m_valueList->current()))
+ return nullptr;
+
+ // If we didn't parse anything, this is not a valid grid position.
+ if (!hasSeenSpanKeyword && !gridLineName && !numericValue)
+ return nullptr;
+
+ // If we have "span" keyword alone is invalid.
+ if (hasSeenSpanKeyword && !gridLineName && !numericValue)
+ return nullptr;
+
+ // Negative numbers are not allowed for span (but are for <integer>).
+ if (hasSeenSpanKeyword && numericValue && numericValue->getIntValue() < 0)
+ return nullptr;
+
+ // For the <custom-ident> case.
+ if (gridLineName && !numericValue && !hasSeenSpanKeyword)
+ return CSSValuePool::singleton().createValue(gridLineName->getStringValue(), CSSPrimitiveValue::CSS_STRING);
+
+ auto values = CSSValueList::createSpaceSeparated();
+ if (hasSeenSpanKeyword)
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueSpan));
+ if (numericValue)
+ values->append(numericValue.releaseNonNull());
+ if (gridLineName)
+ values->append(gridLineName.releaseNonNull());
+ ASSERT(values->length());
+ return WTFMove(values);
+}
+
+static Ref<CSSValue> gridMissingGridPositionValue(CSSValue& value)
+{
+ if (is<CSSPrimitiveValue>(value) && downcast<CSSPrimitiveValue>(value).isString())
+ return value;
+
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
+}
+
+bool CSSParser::parseGridItemPositionShorthand(CSSPropertyID shorthandId, bool important)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ ShorthandScope scope(this, shorthandId);
+ const StylePropertyShorthand& shorthand = shorthandForProperty(shorthandId);
+ ASSERT(shorthand.length() == 2);
+
+ RefPtr<CSSValue> startValue = parseGridPosition();
+ if (!startValue)
+ return false;
+
+ RefPtr<CSSValue> endValue;
+ if (m_valueList->current()) {
+ if (!isForwardSlashOperator(*m_valueList->current()))
+ return false;
+
+ if (!m_valueList->next())
+ return false;
+
+ endValue = parseGridPosition();
+ if (!endValue || m_valueList->current())
+ return false;
+ } else
+ endValue = gridMissingGridPositionValue(*startValue);
+
+ addProperty(shorthand.properties()[0], startValue.releaseNonNull(), important);
+ addProperty(shorthand.properties()[1], endValue.releaseNonNull(), important);
+ return true;
+}
+
+bool CSSParser::parseGridGapShorthand(bool important)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ ShorthandScope scope(this, CSSPropertyGridGap);
+ ASSERT(shorthandForProperty(CSSPropertyGridGap).length() == 2);
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return false;
+
+ ValueWithCalculation rowValueWithCalculation(*value);
+ if (!validateUnit(rowValueWithCalculation, FLength | FNonNeg))
+ return false;
+
+ auto rowGap = createPrimitiveNumericValue(rowValueWithCalculation);
+
+ value = m_valueList->next();
+ if (!value) {
+ addProperty(CSSPropertyGridColumnGap, rowGap.copyRef(), important);
+ addProperty(CSSPropertyGridRowGap, WTFMove(rowGap), important);
+ return true;
+ }
+
+ ValueWithCalculation columnValueWithCalculation(*value);
+ if (!validateUnit(columnValueWithCalculation, FLength | FNonNeg))
+ return false;
+
+ if (m_valueList->next())
+ return false;
+
+ auto columnGap = createPrimitiveNumericValue(columnValueWithCalculation);
+
+ addProperty(CSSPropertyGridRowGap, WTFMove(rowGap), important);
+ addProperty(CSSPropertyGridColumnGap, WTFMove(columnGap), important);
+
+ return true;
+}
+
+RefPtr<CSSValue> CSSParser::parseGridTemplateColumns(TrackListType trackListType)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ if (!(m_valueList->current() && isForwardSlashOperator(*m_valueList->current()) && m_valueList->next()))
+ return nullptr;
+ if (auto columnsValue = parseGridTrackList(trackListType)) {
+ if (m_valueList->current())
+ return nullptr;
+ return columnsValue;
+ }
+
+ return nullptr;
+}
+
+bool CSSParser::parseGridTemplateRowsAndAreasAndColumns(bool important)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ // At least template-areas strings must be defined.
+ if (!m_valueList->current() || isForwardSlashOperator(*m_valueList->current()))
+ return false;
+
+ NamedGridAreaMap gridAreaMap;
+ unsigned rowCount = 0;
+ unsigned columnCount = 0;
+ bool trailingIdentWasAdded = false;
+ auto templateRows = CSSValueList::createSpaceSeparated();
+
+ while (m_valueList->current() && !isForwardSlashOperator(*m_valueList->current())) {
+ // Handle leading <custom-ident>*.
+ if (m_valueList->current()->unit == CSSParserValue::ValueList) {
+ if (trailingIdentWasAdded) {
+ // A row's trailing ident must be concatenated with the next row's leading one.
+ parseGridLineNames(*m_valueList, templateRows, downcast<CSSGridLineNamesValue>(templateRows->item(templateRows->length() - 1)));
+ } else
+ parseGridLineNames(*m_valueList, templateRows);
+ }
+
+ // Handle a template-area's row.
+ if (!parseGridTemplateAreasRow(gridAreaMap, rowCount, columnCount))
+ return false;
+ ++rowCount;
+
+ // Handle template-rows's track-size.
+ if (m_valueList->current() && m_valueList->current()->unit != CSSParserValue::Operator && m_valueList->current()->unit != CSSParserValue::ValueList && m_valueList->current()->unit != CSSPrimitiveValue::CSS_STRING) {
+ RefPtr<CSSValue> value = parseGridTrackSize(*m_valueList);
+ if (!value)
+ return false;
+ templateRows->append(value.releaseNonNull());
+ } else
+ templateRows->append(CSSValuePool::singleton().createIdentifierValue(CSSValueAuto));
+
+ // This will handle the trailing/leading <custom-ident>* in the grammar.
+ trailingIdentWasAdded = false;
+ if (m_valueList->current() && m_valueList->current()->unit == CSSParserValue::ValueList)
+ trailingIdentWasAdded = parseGridLineNames(*m_valueList, templateRows);
+ }
+
+ // [/ <explicit-track-list> ]?
+ RefPtr<CSSValue> templateColumns;
+ if (m_valueList->current()) {
+ ASSERT(isForwardSlashOperator(*m_valueList->current()));
+ templateColumns = parseGridTemplateColumns(GridTemplateNoRepeat);
+ if (!templateColumns)
+ return false;
+ // The template-columns <track-list> can't be 'none'.
+ if (templateColumns->isPrimitiveValue() && downcast<CSSPrimitiveValue>(*templateColumns).getValueID() == CSSValueNone)
+ return false;
+ }
+
+ addProperty(CSSPropertyGridTemplateRows, WTFMove(templateRows), important);
+ if (templateColumns)
+ addProperty(CSSPropertyGridTemplateColumns, templateColumns.releaseNonNull(), important);
+ else
+ addProperty(CSSPropertyGridTemplateColumns, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ addProperty(CSSPropertyGridTemplateAreas, CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount), important);
+
+ return true;
+}
+
+bool CSSParser::parseGridTemplateShorthand(bool important)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ ShorthandScope scope(this, CSSPropertyGridTemplate);
+ ASSERT(shorthandForProperty(CSSPropertyGridTemplate).length() == 3);
+
+ // At least "none" must be defined.
+ if (!m_valueList->current())
+ return false;
+
+ bool firstValueIsNone = m_valueList->current()->id == CSSValueNone;
+
+ // 1- 'none' case.
+ if (firstValueIsNone && !m_valueList->next()) {
+ addProperty(CSSPropertyGridTemplateColumns, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ addProperty(CSSPropertyGridTemplateRows, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ addProperty(CSSPropertyGridTemplateAreas, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ return true;
+ }
+
+ // 2- <grid-template-rows> / <grid-template-columns> syntax.
+ RefPtr<CSSValue> rowsValue;
+ if (firstValueIsNone)
+ rowsValue = CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
+ else
+ rowsValue = parseGridTrackList(GridTemplate);
+
+ if (rowsValue) {
+ auto columnsValue = parseGridTemplateColumns();
+ if (!columnsValue)
+ return false;
+
+ addProperty(CSSPropertyGridTemplateColumns, columnsValue.releaseNonNull(), important);
+ addProperty(CSSPropertyGridTemplateRows, rowsValue.releaseNonNull(), important);
+ addProperty(CSSPropertyGridTemplateAreas, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ return true;
+ }
+
+
+ // 3- [<line-names>? <string> <track-size>? <line-names>? ]+ syntax.
+ // It requires to rewind parsing due to previous syntax failures.
+ m_valueList->setCurrentIndex(0);
+ return parseGridTemplateRowsAndAreasAndColumns(important);
+}
+
+bool CSSParser::parseGridShorthand(bool important)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ ShorthandScope scope(this, CSSPropertyGrid);
+ ASSERT(shorthandForProperty(CSSPropertyGrid).length() == 8);
+
+ // 1- <grid-template>
+ if (parseGridTemplateShorthand(important)) {
+ // It can only be specified the explicit or the implicit grid properties in a single grid declaration.
+ // The sub-properties not specified are set to their initial value, as normal for shorthands.
+ addProperty(CSSPropertyGridAutoFlow, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ addProperty(CSSPropertyGridAutoColumns, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ addProperty(CSSPropertyGridAutoRows, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ addProperty(CSSPropertyGridColumnGap, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ addProperty(CSSPropertyGridRowGap, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ return true;
+ }
+
+ // Need to rewind parsing to explore the alternative syntax of this shorthand.
+ m_valueList->setCurrentIndex(0);
+
+ // 2- <grid-auto-flow> [ <grid-auto-columns> [ / <grid-auto-rows> ]? ]
+ if (!parseValue(CSSPropertyGridAutoFlow, important))
+ return false;
+
+ RefPtr<CSSValue> autoColumnsValue;
+ RefPtr<CSSValue> autoRowsValue;
+
+ if (m_valueList->current()) {
+ autoRowsValue = parseGridTrackList(GridAuto);
+ if (!autoRowsValue)
+ return false;
+ if (m_valueList->current()) {
+ if (!isForwardSlashOperator(*m_valueList->current()) || !m_valueList->next())
+ return false;
+ autoColumnsValue = parseGridTrackList(GridAuto);
+ if (!autoColumnsValue)
+ return false;
+ }
+ if (m_valueList->current())
+ return false;
+ } else {
+ // Other omitted values are set to their initial values.
+ autoColumnsValue = CSSValuePool::singleton().createImplicitInitialValue();
+ autoRowsValue = CSSValuePool::singleton().createImplicitInitialValue();
+ }
+
+ // if <grid-auto-rows> value is omitted, it is set to the value specified for grid-auto-columns.
+ if (!autoColumnsValue)
+ autoColumnsValue = autoRowsValue;
+
+ addProperty(CSSPropertyGridAutoColumns, autoColumnsValue.releaseNonNull(), important);
+ addProperty(CSSPropertyGridAutoRows, autoRowsValue.releaseNonNull(), important);
+
+ // It can only be specified the explicit or the implicit grid properties in a single grid declaration.
+ // The sub-properties not specified are set to their initial value, as normal for shorthands.
+ addProperty(CSSPropertyGridTemplateColumns, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ addProperty(CSSPropertyGridTemplateRows, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ addProperty(CSSPropertyGridTemplateAreas, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ addProperty(CSSPropertyGridColumnGap, CSSValuePool::singleton().createImplicitInitialValue(), important);
+ addProperty(CSSPropertyGridRowGap, CSSValuePool::singleton().createImplicitInitialValue(), important);
+
+ return true;
+}
+
+bool CSSParser::parseGridAreaShorthand(bool important)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ ShorthandScope scope(this, CSSPropertyGridArea);
+ ASSERT(shorthandForProperty(CSSPropertyGridArea).length() == 4);
+
+ RefPtr<CSSValue> rowStartValue = parseGridPosition();
+ if (!rowStartValue)
+ return false;
+
+ RefPtr<CSSValue> columnStartValue;
+ if (!parseSingleGridAreaLonghand(columnStartValue))
+ return false;
+
+ RefPtr<CSSValue> rowEndValue;
+ if (!parseSingleGridAreaLonghand(rowEndValue))
+ return false;
+
+ RefPtr<CSSValue> columnEndValue;
+ if (!parseSingleGridAreaLonghand(columnEndValue))
+ return false;
+
+ if (!columnStartValue)
+ columnStartValue = gridMissingGridPositionValue(*rowStartValue);
+
+ if (!rowEndValue)
+ rowEndValue = gridMissingGridPositionValue(*rowStartValue);
+
+ if (!columnEndValue)
+ columnEndValue = gridMissingGridPositionValue(*columnStartValue);
+
+ addProperty(CSSPropertyGridRowStart, rowStartValue.releaseNonNull(), important);
+ addProperty(CSSPropertyGridColumnStart, columnStartValue.releaseNonNull(), important);
+ addProperty(CSSPropertyGridRowEnd, rowEndValue.releaseNonNull(), important);
+ addProperty(CSSPropertyGridColumnEnd, columnEndValue.releaseNonNull(), important);
+ return true;
+}
+
+bool CSSParser::parseSingleGridAreaLonghand(RefPtr<CSSValue>& property)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ if (!m_valueList->current())
+ return true;
+
+ if (!isForwardSlashOperator(*m_valueList->current()))
+ return false;
+
+ if (!m_valueList->next())
+ return false;
+
+ property = parseGridPosition();
+ return true;
+}
+
+bool CSSParser::parseGridLineNames(CSSParserValueList& inputList, CSSValueList& valueList, CSSGridLineNamesValue* previousNamedAreaTrailingLineNames)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+ ASSERT(inputList.current() && inputList.current()->unit == CSSParserValue::ValueList);
+
+ CSSParserValueList& identList = *inputList.current()->valueList;
+ if (!identList.size()) {
+ inputList.next();
+ return false;
+ }
+
+ // Need to ensure the identList is at the heading index, since the parserList might have been rewound.
+ identList.setCurrentIndex(0);
+ Ref<CSSGridLineNamesValue> lineNames = previousNamedAreaTrailingLineNames ? Ref<CSSGridLineNamesValue>(*previousNamedAreaTrailingLineNames) : CSSGridLineNamesValue::create();
+ while (CSSParserValue* identValue = identList.current()) {
+ ASSERT(identValue->unit == CSSPrimitiveValue::CSS_IDENT);
+ lineNames->append(createPrimitiveStringValue(*identValue));
+ identList.next();
+ }
+ if (!previousNamedAreaTrailingLineNames)
+ valueList.append(WTFMove(lineNames));
+
+ inputList.next();
+ return true;
+}
+
+static bool isGridTrackFixedSized(const CSSPrimitiveValue& value)
+{
+ CSSValueID valueID = value.getValueID();
+ if (valueID == CSSValueWebkitMinContent || valueID == CSSValueWebkitMaxContent || valueID == CSSValueAuto || value.isFlex())
+ return false;
+
+ ASSERT(value.isLength() || value.isPercentage() || value.isCalculated());
+ return true;
+}
+
+static bool isGridTrackFixedSized(const CSSValue& value)
+{
+ if (value.isPrimitiveValue())
+ return isGridTrackFixedSized(downcast<CSSPrimitiveValue>(value));
+
+ ASSERT(value.isFunctionValue());
+ ASSERT(downcast<CSSFunctionValue>(value).arguments());
+ ASSERT(downcast<CSSFunctionValue>(value).arguments()->length() == 2);
+
+ auto& min = downcast<CSSPrimitiveValue>(*downcast<CSSFunctionValue>(value).arguments()->item(0));
+ auto& max = downcast<CSSPrimitiveValue>(*downcast<CSSFunctionValue>(value).arguments()->item(1));
+ return isGridTrackFixedSized(min) || isGridTrackFixedSized(max);
+}
+
+RefPtr<CSSValue> CSSParser::parseGridTrackList(TrackListType trackListType)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ CSSParserValue* value = m_valueList->current();
+ if (value->id == CSSValueNone) {
+ if (trackListType == GridAuto)
+ return nullptr;
+ m_valueList->next();
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
+ }
+
+ auto values = CSSValueList::createSpaceSeparated();
+ // Handle leading <custom-ident>*.
+ value = m_valueList->current();
+ bool allowGridLineNames = trackListType != GridAuto;
+ if (value && value->unit == CSSParserValue::ValueList) {
+ if (!allowGridLineNames)
+ return nullptr;
+ parseGridLineNames(*m_valueList, values);
+ }
+
+ bool seenTrackSizeOrRepeatFunction = false;
+ bool seenAutoRepeat = false;
+ bool allTracksAreFixedSized = true;
+ bool repeatAllowed = trackListType == GridTemplate;
+ while (CSSParserValue* currentValue = m_valueList->current()) {
+ if (isForwardSlashOperator(*currentValue))
+ break;
+ if (currentValue->unit == CSSParserValue::Function && equalLettersIgnoringASCIICase(currentValue->function->name, "repeat(")) {
+ if (!repeatAllowed)
+ return nullptr;
+ bool isAutoRepeat;
+ if (!parseGridTrackRepeatFunction(values, isAutoRepeat, allTracksAreFixedSized))
+ return nullptr;
+ if (isAutoRepeat && seenAutoRepeat)
+ return nullptr;
+ seenAutoRepeat = seenAutoRepeat || isAutoRepeat;
+ } else {
+ RefPtr<CSSValue> value = parseGridTrackSize(*m_valueList);
+ if (!value)
+ return nullptr;
+
+ allTracksAreFixedSized = allTracksAreFixedSized && isGridTrackFixedSized(*value);
+ values->append(value.releaseNonNull());
+ }
+ seenTrackSizeOrRepeatFunction = true;
+
+ if (seenAutoRepeat && !allTracksAreFixedSized)
+ return nullptr;
+
+ // This will handle the trailing <custom-ident>* in the grammar.
+ value = m_valueList->current();
+ if (value && value->unit == CSSParserValue::ValueList) {
+ if (!allowGridLineNames)
+ return nullptr;
+ parseGridLineNames(*m_valueList, values);
+ }
+ }
+
+ if (!seenTrackSizeOrRepeatFunction)
+ return nullptr;
+
+ return WTFMove(values);
+}
+
+bool CSSParser::parseGridTrackRepeatFunction(CSSValueList& list, bool& isAutoRepeat, bool& allTracksAreFixedSized)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ CSSParserValueList* arguments = m_valueList->current()->function->args.get();
+ if (!arguments || arguments->size() < 3 || !isComma(arguments->valueAt(1)))
+ return false;
+
+ ValueWithCalculation firstValueWithCalculation(*arguments->valueAt(0));
+ CSSValueID firstValueID = firstValueWithCalculation.value().id;
+ isAutoRepeat = firstValueID == CSSValueAutoFill || firstValueID == CSSValueAutoFit;
+ if (!isAutoRepeat && !validateUnit(firstValueWithCalculation, FPositiveInteger))
+ return false;
+
+ // If arguments->valueAt(0)->fValue > SIZE_MAX then repetitions becomes 0 during the type casting, that's why we
+ // clamp it down to kGridMaxTracks before the type casting.
+ // The number of repetitions for <auto-repeat> is not important at parsing level
+ // because it will be computed later, let's set it to 1.
+ unsigned repetitions = isAutoRepeat ? 1 : clampTo<unsigned>(parsedDouble(firstValueWithCalculation), 0, kGridMaxTracks);
+
+ Ref<CSSValueList> repeatedValues = isAutoRepeat ? Ref<CSSValueList>(CSSGridAutoRepeatValue::create(firstValueID)) : CSSValueList::createSpaceSeparated();
+ arguments->next(); // Skip the repetition count.
+ arguments->next(); // Skip the comma.
+
+ // Handle leading <custom-ident>*.
+ CSSParserValue* currentValue = arguments->current();
+ if (currentValue && currentValue->unit == CSSParserValue::ValueList)
+ parseGridLineNames(*arguments, repeatedValues);
+
+ unsigned numberOfTracks = 0;
+ while (arguments->current()) {
+ RefPtr<CSSValue> trackSize = parseGridTrackSize(*arguments);
+ if (!trackSize)
+ return false;
+
+ allTracksAreFixedSized = allTracksAreFixedSized && isGridTrackFixedSized(*trackSize);
+ repeatedValues->append(trackSize.releaseNonNull());
+ ++numberOfTracks;
+
+ // This takes care of any trailing <custom-ident>* in the grammar.
+ currentValue = arguments->current();
+ if (currentValue && currentValue->unit == CSSParserValue::ValueList)
+ parseGridLineNames(*arguments, repeatedValues);
+ }
+
+ // We should have found at least one <track-size>, otherwise the declaration is invalid.
+ if (!numberOfTracks)
+ return false;
+
+ // We clamp the number of repetitions to a multiple of the repeat() track list's size, while staying below the max
+ // grid size.
+ repetitions = std::min(repetitions, kGridMaxTracks / numberOfTracks);
+
+ if (isAutoRepeat)
+ list.append(WTFMove(repeatedValues));
+ else {
+ for (unsigned i = 0; i < repetitions; ++i) {
+ for (unsigned j = 0; j < repeatedValues->length(); ++j)
+ list.append(*repeatedValues->itemWithoutBoundsCheck(j));
+ }
+ }
+
+ m_valueList->next();
+ return true;
+}
+
+RefPtr<CSSValue> CSSParser::parseGridTrackSize(CSSParserValueList& inputList)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ CSSParserValue& currentValue = *inputList.current();
+ inputList.next();
+
+ if (currentValue.id == CSSValueAuto)
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueAuto);
+
+ if (currentValue.unit == CSSParserValue::Function && equalLettersIgnoringASCIICase(currentValue.function->name, "minmax(")) {
+ // The spec defines the following grammar: minmax( <track-breadth> , <track-breadth> )
+ CSSParserValueList* arguments = currentValue.function->args.get();
+ if (!arguments || arguments->size() != 3 || !isComma(arguments->valueAt(1)))
+ return nullptr;
+
+ RefPtr<CSSPrimitiveValue> minTrackBreadth = parseGridBreadth(*arguments->valueAt(0));
+ if (!minTrackBreadth || minTrackBreadth->isFlex())
+ return nullptr;
+
+ RefPtr<CSSPrimitiveValue> maxTrackBreadth = parseGridBreadth(*arguments->valueAt(2));
+ if (!maxTrackBreadth)
+ return nullptr;
+
+ auto parsedArguments = CSSValueList::createCommaSeparated();
+ parsedArguments->append(minTrackBreadth.releaseNonNull());
+ parsedArguments->append(maxTrackBreadth.releaseNonNull());
+ return CSSFunctionValue::create("minmax(", WTFMove(parsedArguments));
+ }
+
+ return parseGridBreadth(currentValue);
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseGridBreadth(CSSParserValue& value)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ if (value.id == CSSValueWebkitMinContent || value.id == CSSValueWebkitMaxContent || value.id == CSSValueAuto)
+ return CSSValuePool::singleton().createIdentifierValue(value.id);
+
+ if (value.unit == CSSPrimitiveValue::CSS_FR) {
+ double flexValue = value.fValue;
+
+ // Fractional unit is a non-negative dimension.
+ if (flexValue <= 0)
+ return nullptr;
+
+ return CSSValuePool::singleton().createValue(flexValue, CSSPrimitiveValue::CSS_FR);
+ }
+
+ ValueWithCalculation valueWithCalculation(value);
+ if (!validateUnit(valueWithCalculation, FNonNeg | FLength | FPercent))
+ return nullptr;
+
+ return createPrimitiveNumericValue(valueWithCalculation);
+}
+
+static inline bool isValidGridAutoFlowId(CSSValueID id)
+{
+ return (id == CSSValueRow || id == CSSValueColumn || id == CSSValueDense);
+}
+
+RefPtr<CSSValue> CSSParser::parseGridAutoFlow(CSSParserValueList& inputList)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ // [ row | column ] || dense
+ CSSParserValue* value = inputList.current();
+ if (!value)
+ return nullptr;
+
+ auto parsedValues = CSSValueList::createSpaceSeparated();
+
+ // First parameter.
+ CSSValueID firstId = value->id;
+ if (!isValidGridAutoFlowId(firstId))
+ return nullptr;
+
+ // Second parameter, if any.
+ // If second parameter is not valid we should process anyway the first one as we can be inside the "grid" shorthand.
+ value = inputList.next();
+ if (!value || !isValidGridAutoFlowId(value->id)) {
+ if (firstId == CSSValueDense)
+ parsedValues->append(CSSValuePool::singleton().createIdentifierValue(CSSValueRow));
+
+ parsedValues->append(CSSValuePool::singleton().createIdentifierValue(firstId));
+ return WTFMove(parsedValues);
+ }
+
+ switch (firstId) {
+ case CSSValueRow:
+ case CSSValueColumn:
+ parsedValues->append(CSSValuePool::singleton().createIdentifierValue(firstId));
+ if (value->id == CSSValueDense) {
+ parsedValues->append(CSSValuePool::singleton().createIdentifierValue(value->id));
+ inputList.next();
+ }
+ break;
+ case CSSValueDense:
+ if (value->id == CSSValueRow || value->id == CSSValueColumn) {
+ parsedValues->append(CSSValuePool::singleton().createIdentifierValue(value->id));
+ inputList.next();
+ }
+ parsedValues->append(CSSValuePool::singleton().createIdentifierValue(firstId));
+ break;
+ default:
+ ASSERT_NOT_REACHED();
+ break;
+ }
+
+ return WTFMove(parsedValues);
+}
+#endif /* ENABLE(CSS_GRID_LAYOUT) */
+
+#if ENABLE(DASHBOARD_SUPPORT)
+
+static const int dashboardRegionParameterCount = 6;
+static const int dashboardRegionShortParameterCount = 2;
+
+static CSSParserValue* skipCommaInDashboardRegion(CSSParserValueList *args)
+{
+ if (args->size() == (dashboardRegionParameterCount * 2 - 1) || args->size() == (dashboardRegionShortParameterCount * 2 - 1)) {
+ CSSParserValue& current = *args->current();
+ if (current.unit == CSSParserValue::Operator && current.iValue == ',')
+ return args->next();
+ }
+ return args->current();
+}
+
+bool CSSParser::parseDashboardRegions(CSSPropertyID propId, bool important)
+{
+ bool valid = true;
+
+ CSSParserValue* value = m_valueList->current();
+
+ if (value->id == CSSValueNone) {
+ if (m_valueList->next())
+ return false;
+ addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
+ return valid;
+ }
+
+ auto firstRegion = DashboardRegion::create();
+ DashboardRegion* region = nullptr;
+
+ while (value) {
+ if (!region) {
+ region = firstRegion.ptr();
+ } else {
+ auto nextRegion = DashboardRegion::create();
+ region->m_next = nextRegion.copyRef();
+ region = nextRegion.ptr();
+ }
+
+ if (value->unit != CSSParserValue::Function) {
+ valid = false;
+ break;
+ }
+
+ // Commas count as values, so allow (function name is dashboard-region for DASHBOARD_SUPPORT feature):
+ // dashboard-region(label, type, t, r, b, l) or dashboard-region(label type t r b l)
+ // dashboard-region(label, type, t, r, b, l) or dashboard-region(label type t r b l)
+ // also allow
+ // dashboard-region(label, type) or dashboard-region(label type)
+ // dashboard-region(label, type) or dashboard-region(label type)
+ CSSParserValueList* args = value->function->args.get();
+ if (!equalLettersIgnoringASCIICase(value->function->name, "dashboard-region(") || !args) {
+ valid = false;
+ break;
+ }
+
+ int numArgs = args->size();
+ if ((numArgs != dashboardRegionParameterCount && numArgs != (dashboardRegionParameterCount*2-1))
+ && (numArgs != dashboardRegionShortParameterCount && numArgs != (dashboardRegionShortParameterCount*2-1))) {
+ valid = false;
+ break;
+ }
+
+ // First arg is a label.
+ CSSParserValue* arg = args->current();
+ if (arg->unit != CSSPrimitiveValue::CSS_IDENT) {
+ valid = false;
+ break;
+ }
+
+ region->m_label = arg->string;
+
+ // Second arg is a type.
+ arg = args->next();
+ arg = skipCommaInDashboardRegion(args);
+ if (arg->unit != CSSPrimitiveValue::CSS_IDENT) {
+ valid = false;
+ break;
+ }
+
+ if (equalLettersIgnoringASCIICase(*arg, "circle"))
+ region->m_isCircle = true;
+ else if (equalLettersIgnoringASCIICase(*arg, "rectangle"))
+ region->m_isRectangle = true;
+ else {
+ valid = false;
+ break;
+ }
+
+ region->m_geometryType = arg->string;
+
+ if (numArgs == dashboardRegionShortParameterCount || numArgs == (dashboardRegionShortParameterCount*2-1)) {
+ // This originally used CSSValueInvalid by accident. It might be more logical to use something else.
+ RefPtr<CSSPrimitiveValue> amount = CSSValuePool::singleton().createIdentifierValue(CSSValueInvalid);
+
+ region->setTop(amount.copyRef());
+ region->setRight(amount.copyRef());
+ region->setBottom(amount.copyRef());
+ region->setLeft(WTFMove(amount));
+ } else {
+ // Next four arguments must be offset numbers
+ for (int i = 0; i < 4; ++i) {
+ arg = args->next();
+ arg = skipCommaInDashboardRegion(args);
+
+ ValueWithCalculation argWithCalculation(*arg);
+ valid = arg->id == CSSValueAuto || validateUnit(argWithCalculation, FLength);
+ if (!valid)
+ break;
+
+ RefPtr<CSSPrimitiveValue> amount = arg->id == CSSValueAuto ? CSSValuePool::singleton().createIdentifierValue(CSSValueAuto) : createPrimitiveNumericValue(argWithCalculation);
+
+ if (i == 0)
+ region->setTop(WTFMove(amount));
+ else if (i == 1)
+ region->setRight(WTFMove(amount));
+ else if (i == 2)
+ region->setBottom(WTFMove(amount));
+ else
+ region->setLeft(WTFMove(amount));
+ }
+ }
+
+ if (args->next())
+ return false;
+
+ value = m_valueList->next();
+ }
+
+ if (valid)
+ addProperty(propId, CSSValuePool::singleton().createValue(RefPtr<DashboardRegion>(WTFMove(firstRegion))), important);
+
+ return valid;
+}
+
+#endif /* ENABLE(DASHBOARD_SUPPORT) */
+
+#if ENABLE(CSS_GRID_LAYOUT)
+static Vector<String> parseGridTemplateAreasColumnNames(const String& gridRowNames)
+{
+ ASSERT(!gridRowNames.isEmpty());
+ Vector<String> columnNames;
+ // Using StringImpl to avoid checks and indirection in every call to String::operator[].
+ StringImpl& text = *gridRowNames.impl();
+ unsigned length = text.length();
+ unsigned index = 0;
+ while (index < length) {
+ if (text[index] != ' ' && text[index] != '.') {
+ unsigned gridAreaStart = index;
+ while (index < length && text[index] != ' ' && text[index] != '.')
+ ++index;
+ columnNames.append(text.substring(gridAreaStart, index - gridAreaStart));
+ continue;
+ }
+
+ if (text[index] == '.') {
+ while (index < length && text[index] == '.')
+ ++index;
+ columnNames.append(".");
+ continue;
+ }
+
+ ++index;
+ }
+
+ return columnNames;
+}
+
+bool CSSParser::parseGridTemplateAreasRow(NamedGridAreaMap& gridAreaMap, const unsigned rowCount, unsigned& columnCount)
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ CSSParserValue* currentValue = m_valueList->current();
+ if (!currentValue || currentValue->unit != CSSPrimitiveValue::CSS_STRING)
+ return false;
+
+ String gridRowNames = currentValue->string;
+ if (gridRowNames.containsOnlyWhitespace())
+ return false;
+
+ Vector<String> columnNames = parseGridTemplateAreasColumnNames(gridRowNames);
+ if (!columnCount) {
+ columnCount = columnNames.size();
+ ASSERT(columnCount);
+ } else if (columnCount != columnNames.size()) {
+ // The declaration is invalid is all the rows don't have the number of columns.
+ return false;
+ }
+
+ for (unsigned currentColumn = 0; currentColumn < columnCount; ++currentColumn) {
+ const String& gridAreaName = columnNames[currentColumn];
+
+ // Unamed areas are always valid (we consider them to be 1x1).
+ if (gridAreaName == ".")
+ continue;
+
+ // We handle several grid areas with the same name at once to simplify the validation code.
+ unsigned lookAheadColumn;
+ for (lookAheadColumn = currentColumn + 1; lookAheadColumn < columnCount; ++lookAheadColumn) {
+ if (columnNames[lookAheadColumn] != gridAreaName)
+ break;
+ }
+
+ auto gridAreaIterator = gridAreaMap.find(gridAreaName);
+ if (gridAreaIterator == gridAreaMap.end())
+ gridAreaMap.add(gridAreaName, GridArea(GridSpan::translatedDefiniteGridSpan(rowCount, rowCount + 1), GridSpan::translatedDefiniteGridSpan(currentColumn, lookAheadColumn)));
+ else {
+ GridArea& gridArea = gridAreaIterator->value;
+
+ // The following checks test that the grid area is a single filled-in rectangle.
+ // 1. The new row is adjacent to the previously parsed row.
+ if (rowCount != gridArea.rows.endLine())
+ return false;
+
+ // 2. The new area starts at the same position as the previously parsed area.
+ if (currentColumn != gridArea.columns.startLine())
+ return false;
+
+ // 3. The new area ends at the same position as the previously parsed area.
+ if (lookAheadColumn != gridArea.columns.endLine())
+ return false;
+
+ gridArea.rows = GridSpan::translatedDefiniteGridSpan(gridArea.rows.startLine(), gridArea.rows.endLine() + 1);
+ }
+ currentColumn = lookAheadColumn - 1;
+ }
+
+ m_valueList->next();
+ return true;
+}
+
+RefPtr<CSSValue> CSSParser::parseGridTemplateAreas()
+{
+ ASSERT(isCSSGridLayoutEnabled());
+
+ if (m_valueList->current() && m_valueList->current()->id == CSSValueNone) {
+ m_valueList->next();
+ return CSSValuePool::singleton().createIdentifierValue(CSSValueNone);
+ }
+
+ NamedGridAreaMap gridAreaMap;
+ unsigned rowCount = 0;
+ unsigned columnCount = 0;
+
+ while (m_valueList->current()) {
+ if (!parseGridTemplateAreasRow(gridAreaMap, rowCount, columnCount))
+ return nullptr;
+ ++rowCount;
+ }
+
+ if (!rowCount || !columnCount)
+ return nullptr;
+
+ return CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount);
+}
+#endif /* ENABLE(CSS_GRID_LAYOUT) */
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseCounterContent(CSSParserValueList& args, bool counters)
+{
+ unsigned numArgs = args.size();
+ if (counters && numArgs != 3 && numArgs != 5)
+ return nullptr;
+ if (!counters && numArgs != 1 && numArgs != 3)
+ return nullptr;
+
+ CSSParserValue* argument = args.current();
+ if (argument->unit != CSSPrimitiveValue::CSS_IDENT)
+ return nullptr;
+ auto identifier = createPrimitiveStringValue(*argument);
+
+ RefPtr<CSSPrimitiveValue> separator;
+ if (!counters)
+ separator = CSSValuePool::singleton().createValue(String(), CSSPrimitiveValue::CSS_STRING);
+ else {
+ argument = args.next();
+ if (argument->unit != CSSParserValue::Operator || argument->iValue != ',')
+ return nullptr;
+
+ argument = args.next();
+ if (argument->unit != CSSPrimitiveValue::CSS_STRING)
+ return nullptr;
+
+ separator = createPrimitiveStringValue(*argument);
+ }
+
+ RefPtr<CSSPrimitiveValue> listStyle;
+ argument = args.next();
+ if (!argument) // Make the list style default decimal
+ listStyle = CSSValuePool::singleton().createIdentifierValue(CSSValueDecimal);
+ else {
+ if (argument->unit != CSSParserValue::Operator || argument->iValue != ',')
+ return nullptr;
+
+ argument = args.next();
+ if (argument->unit != CSSPrimitiveValue::CSS_IDENT)
+ return nullptr;
+
+ CSSValueID listStyleID = CSSValueInvalid;
+ if (argument->id == CSSValueNone || (argument->id >= CSSValueDisc && argument->id <= CSSValueKatakanaIroha))
+ listStyleID = argument->id;
+ else
+ return nullptr;
+
+ listStyle = CSSValuePool::singleton().createIdentifierValue(listStyleID);
+ }
+
+ return CSSValuePool::singleton().createValue(Counter::create(WTFMove(identifier), listStyle.releaseNonNull(), separator.releaseNonNull()));
+}
+
+bool CSSParser::parseClipShape(CSSPropertyID propId, bool important)
+{
+ CSSParserValue& value = *m_valueList->current();
+ CSSParserValueList* args = value.function->args.get();
+
+ if (!equalLettersIgnoringASCIICase(value.function->name, "rect(") || !args)
+ return false;
+
+ // rect(t, r, b, l) || rect(t r b l)
+ if (args->size() != 4 && args->size() != 7)
+ return false;
+ auto rect = Rect::create();
+ bool valid = true;
+ int i = 0;
+ CSSParserValue* argument = args->current();
+ while (argument) {
+ ValueWithCalculation argumentWithCalculation(*argument);
+ valid = argument->id == CSSValueAuto || validateUnit(argumentWithCalculation, FLength);
+ if (!valid)
+ break;
+ Ref<CSSPrimitiveValue> length = argument->id == CSSValueAuto ? CSSValuePool::singleton().createIdentifierValue(CSSValueAuto) : createPrimitiveNumericValue(argumentWithCalculation);
+ if (i == 0)
+ rect->setTop(WTFMove(length));
+ else if (i == 1)
+ rect->setRight(WTFMove(length));
+ else if (i == 2)
+ rect->setBottom(WTFMove(length));
+ else
+ rect->setLeft(WTFMove(length));
+ argument = args->next();
+ if (argument && args->size() == 7) {
+ if (argument->unit == CSSParserValue::Operator && argument->iValue == ',') {
+ argument = args->next();
+ } else {
+ valid = false;
+ break;
+ }
+ }
+ i++;
+ }
+ if (valid) {
+ addProperty(propId, CSSValuePool::singleton().createValue(WTFMove(rect)), important);
+ m_valueList->next();
+ return true;
+ }
+ return false;
+}
+
+static void completeBorderRadii(RefPtr<CSSPrimitiveValue> radii[4])
+{
+ if (radii[3])
+ return;
+ if (!radii[2]) {
+ if (!radii[1])
+ radii[1] = radii[0];
+ radii[2] = radii[0];
+ }
+ radii[3] = radii[1];
+}
+
+// FIXME: This should be refactored with CSSParser::parseBorderRadius.
+// CSSParser::parseBorderRadius contains support for some legacy radius construction.
+RefPtr<CSSBasicShapeInset> CSSParser::parseInsetRoundedCorners(Ref<CSSBasicShapeInset>&& shape, CSSParserValueList& args)
+{
+ CSSParserValue* argument = args.next();
+
+ if (!argument)
+ return nullptr;
+
+ Vector<CSSParserValue*> radiusArguments;
+ while (argument) {
+ radiusArguments.append(argument);
+ argument = args.next();
+ }
+
+ unsigned num = radiusArguments.size();
+ if (!num || num > 9)
+ return nullptr;
+
+ RefPtr<CSSPrimitiveValue> radii[2][4];
+
+ unsigned indexAfterSlash = 0;
+ for (unsigned i = 0; i < num; ++i) {
+ CSSParserValue& value = *radiusArguments.at(i);
+ if (value.unit == CSSParserValue::Operator) {
+ if (value.iValue != '/')
+ return nullptr;
+
+ if (!i || indexAfterSlash || i + 1 == num || num > i + 5)
+ return nullptr;
+
+ indexAfterSlash = i + 1;
+ completeBorderRadii(radii[0]);
+ continue;
+ }
+
+ if (i - indexAfterSlash >= 4)
+ return nullptr;
+
+ ValueWithCalculation valueWithCalculation(value);
+ if (!validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg))
+ return nullptr;
+
+ auto radius = createPrimitiveNumericValue(valueWithCalculation);
+
+ if (!indexAfterSlash)
+ radii[0][i] = WTFMove(radius);
+ else
+ radii[1][i - indexAfterSlash] = WTFMove(radius);
+ }
+
+ if (!indexAfterSlash) {
+ completeBorderRadii(radii[0]);
+ for (unsigned i = 0; i < 4; ++i)
+ radii[1][i] = radii[0][i];
+ } else
+ completeBorderRadii(radii[1]);
+
+ shape->setTopLeftRadius(createPrimitiveValuePair(WTFMove(radii[0][0]), WTFMove(radii[1][0])));
+ shape->setTopRightRadius(createPrimitiveValuePair(WTFMove(radii[0][1]), WTFMove(radii[1][1])));
+ shape->setBottomRightRadius(createPrimitiveValuePair(WTFMove(radii[0][2]), WTFMove(radii[1][2])));
+ shape->setBottomLeftRadius(createPrimitiveValuePair(WTFMove(radii[0][3]), WTFMove(radii[1][3])));
+
+ return WTFMove(shape);
+}
+
+RefPtr<CSSBasicShapeInset> CSSParser::parseBasicShapeInset(CSSParserValueList& args)
+{
+ auto shape = CSSBasicShapeInset::create();
+
+ CSSParserValue* argument = args.current();
+ Vector<Ref<CSSPrimitiveValue> > widthArguments;
+ bool hasRoundedInset = false;
+ while (argument) {
+ if (argument->unit == CSSPrimitiveValue::CSS_IDENT && equalLettersIgnoringASCIICase(argument->string, "round")) {
+ hasRoundedInset = true;
+ break;
+ }
+
+ Units unitFlags = FLength | FPercent;
+ ValueWithCalculation argumentWithCalculation(*argument);
+ if (!validateUnit(argumentWithCalculation, unitFlags) || widthArguments.size() > 4)
+ return nullptr;
+
+ widthArguments.append(createPrimitiveNumericValue(argumentWithCalculation));
+ argument = args.next();
+ }
+
+ switch (widthArguments.size()) {
+ case 1: {
+ shape->updateShapeSize1Value(WTFMove(widthArguments[0]));
+ break;
+ }
+ case 2: {
+ shape->updateShapeSize2Values(WTFMove(widthArguments[0]), WTFMove(widthArguments[1]));
+ break;
+ }
+ case 3: {
+ shape->updateShapeSize3Values(WTFMove(widthArguments[0]), WTFMove(widthArguments[1]), WTFMove(widthArguments[2]));
+ break;
+ }
+ case 4: {
+ shape->updateShapeSize4Values(WTFMove(widthArguments[0]), WTFMove(widthArguments[1]), WTFMove(widthArguments[2]), WTFMove(widthArguments[3]));
+ break;
+ }
+ default:
+ return nullptr;
+ }
+
+ if (hasRoundedInset)
+ return parseInsetRoundedCorners(WTFMove(shape), args);
+ return WTFMove(shape);
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseShapeRadius(CSSParserValue& value)
+{
+ if (value.id == CSSValueClosestSide || value.id == CSSValueFarthestSide)
+ return CSSValuePool::singleton().createIdentifierValue(value.id);
+
+ ValueWithCalculation valueWithCalculation(value);
+ if (!validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg))
+ return nullptr;
+
+ return createPrimitiveNumericValue(valueWithCalculation);
+}
+
+RefPtr<CSSBasicShapeCircle> CSSParser::parseBasicShapeCircle(CSSParserValueList& args)
+{
+ // circle(radius)
+ // circle(radius at <position>)
+ // circle(at <position>)
+ // where position defines centerX and centerY using a CSS <position> data type.
+ auto shape = CSSBasicShapeCircle::create();
+
+ for (CSSParserValue* argument = args.current(); argument; argument = args.next()) {
+ // The call to parseFillPosition below should consume all of the
+ // arguments except the first two. Thus, and index greater than one
+ // indicates an invalid production.
+ if (args.currentIndex() > 1)
+ return nullptr;
+
+ if (!args.currentIndex() && argument->id != CSSValueAt) {
+ if (RefPtr<CSSPrimitiveValue> radius = parseShapeRadius(*argument)) {
+ shape->setRadius(radius.releaseNonNull());
+ continue;
+ }
+
+ return nullptr;
+ }
+
+ if (argument->id == CSSValueAt && args.next()) {
+ RefPtr<CSSPrimitiveValue> centerX;
+ RefPtr<CSSPrimitiveValue> centerY;
+ parseFillPosition(args, centerX, centerY);
+ if (centerX && centerY && !args.current()) {
+ shape->setCenterX(centerX.releaseNonNull());
+ shape->setCenterY(centerY.releaseNonNull());
+ } else
+ return nullptr;
+ } else
+ return nullptr;
+ }
+
+ return WTFMove(shape);
+}
+
+RefPtr<CSSBasicShapeEllipse> CSSParser::parseBasicShapeEllipse(CSSParserValueList& args)
+{
+ // ellipse(radiusX)
+ // ellipse(radiusX at <position>)
+ // ellipse(radiusX radiusY)
+ // ellipse(radiusX radiusY at <position>)
+ // ellipse(at <position>)
+ // where position defines centerX and centerY using a CSS <position> data type.
+ auto shape = CSSBasicShapeEllipse::create();
+
+ for (CSSParserValue* argument = args.current(); argument; argument = args.next()) {
+ // The call to parseFillPosition below should consume all of the
+ // arguments except the first three. Thus, an index greater than two
+ // indicates an invalid production.
+ if (args.currentIndex() > 2)
+ return nullptr;
+
+ if (args.currentIndex() < 2 && argument->id != CSSValueAt) {
+ if (RefPtr<CSSPrimitiveValue> radius = parseShapeRadius(*argument)) {
+ if (!shape->radiusX())
+ shape->setRadiusX(radius.releaseNonNull());
+ else
+ shape->setRadiusY(radius.releaseNonNull());
+ continue;
+ }
+
+ return nullptr;
+ }
+
+ if (argument->id != CSSValueAt || !args.next()) // expecting ellipse(.. at <position>)
+ return nullptr;
+
+ RefPtr<CSSPrimitiveValue> centerX;
+ RefPtr<CSSPrimitiveValue> centerY;
+ parseFillPosition(args, centerX, centerY);
+ if (!centerX || !centerY || args.current())
+ return nullptr;
+
+ shape->setCenterX(centerX.releaseNonNull());
+ shape->setCenterY(centerY.releaseNonNull());
+ }
+
+ return WTFMove(shape);
+}
+
+RefPtr<CSSBasicShapePolygon> CSSParser::parseBasicShapePolygon(CSSParserValueList& args)
+{
+ unsigned size = args.size();
+ if (!size)
+ return nullptr;
+
+ auto shape = CSSBasicShapePolygon::create();
+
+ CSSParserValue* argument = args.current();
+ if (argument->id == CSSValueEvenodd || argument->id == CSSValueNonzero) {
+ shape->setWindRule(argument->id == CSSValueEvenodd ? RULE_EVENODD : RULE_NONZERO);
+
+ if (!isComma(args.next()))
+ return nullptr;
+
+ argument = args.next();
+ size -= 2;
+ }
+
+ // <length> <length>, ... <length> <length> -> each pair has 3 elements except the last one
+ if (!size || (size % 3) - 2)
+ return nullptr;
+
+ CSSParserValue* argumentX = argument;
+ while (argumentX) {
+
+ ValueWithCalculation argumentXWithCalculation(*argumentX);
+ if (!validateUnit(argumentXWithCalculation, FLength | FPercent))
+ return nullptr;
+ auto xLength = createPrimitiveNumericValue(argumentXWithCalculation);
+
+ CSSParserValue* argumentY = args.next();
+ if (!argumentY)
+ return nullptr;
+ ValueWithCalculation argumentYWithCalculation(*argumentY);
+ if (!validateUnit(argumentYWithCalculation, FLength | FPercent))
+ return nullptr;
+ auto yLength = createPrimitiveNumericValue(argumentYWithCalculation);
+
+ shape->appendPoint(WTFMove(xLength), WTFMove(yLength));
+
+ CSSParserValue* commaOrNull = args.next();
+ if (!commaOrNull)
+ argumentX = nullptr;
+ else if (!isComma(commaOrNull))
+ return nullptr;
+ else
+ argumentX = args.next();
+ }
+
+ return WTFMove(shape);
+}
+
+RefPtr<CSSBasicShapePath> CSSParser::parseBasicShapePath(CSSParserValueList& args)
+{
+ unsigned size = args.size();
+ if (size != 1 && size != 3)
+ return nullptr;
+
+ WindRule windRule = RULE_NONZERO;
+
+ CSSParserValue* argument = args.current();
+ if (argument->id == CSSValueEvenodd || argument->id == CSSValueNonzero) {
+ windRule = argument->id == CSSValueEvenodd ? RULE_EVENODD : RULE_NONZERO;
+
+ if (!isComma(args.next()))
+ return nullptr;
+ argument = args.next();
+ }
+
+ if (argument->unit != CSSPrimitiveValue::CSS_STRING)
+ return nullptr;
+
+ auto byteStream = std::make_unique<SVGPathByteStream>();
+ if (!buildSVGPathByteStreamFromString(argument->string, *byteStream, UnalteredParsing))
+ return nullptr;
+
+ auto shape = CSSBasicShapePath::create(WTFMove(byteStream));
+ shape->setWindRule(windRule);
+
+ args.next();
+ return WTFMove(shape);
+}
+
+static bool isBoxValue(CSSValueID valueId, CSSPropertyID propId)
+{
+ switch (valueId) {
+ case CSSValueContentBox:
+ case CSSValuePaddingBox:
+ case CSSValueBorderBox:
+ case CSSValueMarginBox:
+ return true;
+ case CSSValueFill:
+ case CSSValueStroke:
+ case CSSValueViewBox:
+ return propId == CSSPropertyWebkitClipPath;
+ default: break;
+ }
+
+ return false;
+}
+
+RefPtr<CSSValueList> CSSParser::parseBasicShapeAndOrBox(CSSPropertyID propId)
+{
+ CSSParserValue* value = m_valueList->current();
+
+ bool shapeFound = false;
+ bool boxFound = false;
+ CSSValueID valueId;
+
+ auto list = CSSValueList::createSpaceSeparated();
+ for (unsigned i = 0; i < 2; ++i) {
+ if (!value)
+ break;
+ valueId = value->id;
+ if (value->unit == CSSParserValue::Function && !shapeFound) {
+ // parseBasicShape already asks for the next value list item.
+ RefPtr<CSSPrimitiveValue> shapeValue = parseBasicShape();
+ if (!shapeValue)
+ return nullptr;
+ list->append(shapeValue.releaseNonNull());
+ shapeFound = true;
+ } else if (isBoxValue(valueId, propId) && !boxFound) {
+ RefPtr<CSSPrimitiveValue> parsedValue = CSSValuePool::singleton().createIdentifierValue(valueId);
+ list->append(parsedValue.releaseNonNull());
+ boxFound = true;
+ m_valueList->next();
+ } else
+ return nullptr;
+ value = m_valueList->current();
+ }
+
+ if (m_valueList->current())
+ return nullptr;
+ return WTFMove(list);
+}
+
+#if ENABLE(CSS_SHAPES)
+RefPtr<CSSValue> CSSParser::parseShapeProperty(CSSPropertyID propId)
+{
+ CSSParserValue& value = *m_valueList->current();
+ CSSValueID valueId = value.id;
+
+ if (valueId == CSSValueNone) {
+ m_valueList->next();
+ return CSSValuePool::singleton().createIdentifierValue(valueId);
+ }
+
+ RefPtr<CSSValue> imageValue;
+ if (valueId != CSSValueNone && parseFillImage(*m_valueList, imageValue)) {
+ m_valueList->next();
+ return imageValue;
+ }
+
+ return parseBasicShapeAndOrBox(propId);
+}
+#endif
+
+RefPtr<CSSValue> CSSParser::parseClipPath()
+{
+ CSSParserValue& value = *m_valueList->current();
+ CSSValueID valueId = value.id;
+
+ if (valueId == CSSValueNone) {
+ m_valueList->next();
+ return CSSValuePool::singleton().createIdentifierValue(valueId);
+ }
+ if (value.unit == CSSPrimitiveValue::CSS_URI) {
+ m_valueList->next();
+ return CSSPrimitiveValue::create(value.string, CSSPrimitiveValue::CSS_URI);
+ }
+
+ return parseBasicShapeAndOrBox(CSSPropertyWebkitClipPath);
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseBasicShape()
+{
+ CSSParserValue& value = *m_valueList->current();
+ ASSERT(value.unit == CSSParserValue::Function);
+ CSSParserValueList* args = value.function->args.get();
+
+ if (!args)
+ return nullptr;
+
+ RefPtr<CSSBasicShape> shape;
+ if (equalLettersIgnoringASCIICase(value.function->name, "circle("))
+ shape = parseBasicShapeCircle(*args);
+ else if (equalLettersIgnoringASCIICase(value.function->name, "ellipse("))
+ shape = parseBasicShapeEllipse(*args);
+ else if (equalLettersIgnoringASCIICase(value.function->name, "polygon("))
+ shape = parseBasicShapePolygon(*args);
+ else if (equalLettersIgnoringASCIICase(value.function->name, "path("))
+ shape = parseBasicShapePath(*args);
+ else if (equalLettersIgnoringASCIICase(value.function->name, "inset("))
+ shape = parseBasicShapeInset(*args);
+
+ if (!shape)
+ return nullptr;
+
+ m_valueList->next();
+ return CSSValuePool::singleton().createValue(shape.releaseNonNull());
+}
+
+// [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? 'font-family'
+bool CSSParser::parseFont(bool important)
+{
+ // Let's check if there is an inherit or initial somewhere in the shorthand.
+ for (unsigned i = 0; i < m_valueList->size(); ++i) {
+ if (m_valueList->valueAt(i)->id == CSSValueInherit || m_valueList->valueAt(i)->id == CSSValueInitial)
+ return false;
+ }
+
+ ShorthandScope scope(this, CSSPropertyFont);
+ // Optional font-style, font-variant and font-weight.
+ bool fontStyleParsed = false;
+ bool fontVariantParsed = false;
+ bool fontWeightParsed = false;
+ CSSParserValue* value;
+ while ((value = m_valueList->current())) {
+ if (!fontStyleParsed && isValidKeywordPropertyAndValue(CSSPropertyFontStyle, value->id, m_context, m_styleSheet)) {
+ addProperty(CSSPropertyFontStyle, CSSValuePool::singleton().createIdentifierValue(value->id), important);
+ fontStyleParsed = true;
+ } else if (!fontVariantParsed && (value->id == CSSValueNormal || value->id == CSSValueSmallCaps)) {
+ // Font variant in the shorthand is particular, it only accepts normal or small-caps.
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(value->id), important);
+ fontVariantParsed = true;
+ } else if (!fontWeightParsed && parseFontWeight(important))
+ fontWeightParsed = true;
+ else
+ break;
+ m_valueList->next();
+ }
+
+ if (!value)
+ return false;
+
+ if (!fontStyleParsed)
+ addProperty(CSSPropertyFontStyle, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+ if (!fontVariantParsed)
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+ if (!fontWeightParsed)
+ addProperty(CSSPropertyFontWeight, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+
+ // Now a font size _must_ come.
+ // <absolute-size> | <relative-size> | <length> | <percentage> | inherit
+ if (!parseFontSize(important))
+ return false;
+
+ value = m_valueList->current();
+ if (!value)
+ return false;
+
+ if (isForwardSlashOperator(*value)) {
+ // The line-height property.
+ value = m_valueList->next();
+ if (!value)
+ return false;
+ if (!parseLineHeight(important))
+ return false;
+ } else
+ addProperty(CSSPropertyLineHeight, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important, true);
+
+ // Font family must come now.
+ RefPtr<CSSValue> parsedFamilyValue = parseFontFamily();
+ if (!parsedFamilyValue)
+ return false;
+
+ addProperty(CSSPropertyFontFamily, parsedFamilyValue.releaseNonNull(), important);
+
+ // FIXME: http://www.w3.org/TR/2011/WD-css3-fonts-20110324/#font-prop requires that
+ // "font-stretch", "font-size-adjust", and "font-kerning" be reset to their initial values
+ // but we don't seem to support them at the moment. They should also be added here once implemented.
+ if (m_valueList->current())
+ return false;
+
+ return true;
+}
+
+void CSSParser::parseSystemFont(bool important)
+{
+ ASSERT(m_valueList->size() == 1);
+ CSSValueID systemFontID = m_valueList->valueAt(0)->id;
+ ASSERT(systemFontID >= CSSValueCaption && systemFontID <= CSSValueStatusBar);
+ m_valueList->next();
+
+ FontCascadeDescription fontDescription;
+ RenderTheme::defaultTheme()->systemFont(systemFontID, fontDescription);
+ if (!fontDescription.isAbsoluteSize())
+ return;
+
+ // We must set font's constituent properties, even for system fonts, so the cascade functions correctly.
+ ShorthandScope scope(this, CSSPropertyFont);
+ addProperty(CSSPropertyFontStyle, CSSValuePool::singleton().createIdentifierValue(fontDescription.italic() == FontItalicOn ? CSSValueItalic : CSSValueNormal), important);
+ addProperty(CSSPropertyFontWeight, CSSValuePool::singleton().createValue(fontDescription.weight()), important);
+ addProperty(CSSPropertyFontSize, CSSValuePool::singleton().createValue(fontDescription.specifiedSize(), CSSPrimitiveValue::CSS_PX), important);
+ Ref<CSSValueList> fontFamilyList = CSSValueList::createCommaSeparated();
+ fontFamilyList->append(CSSValuePool::singleton().createFontFamilyValue(fontDescription.familyAt(0), FromSystemFontID::Yes));
+ addProperty(CSSPropertyFontFamily, WTFMove(fontFamilyList), important);
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important);
+ addProperty(CSSPropertyLineHeight, CSSValuePool::singleton().createIdentifierValue(CSSValueNormal), important);
+}
+
+class FontFamilyValueBuilder {
+public:
+ FontFamilyValueBuilder(CSSValueList& list)
+ : m_list(list)
+ {
+ }
+
+ void add(const CSSParserString& string)
+ {
+ if (!m_builder.isEmpty())
+ m_builder.append(' ');
+
+ if (string.is8Bit()) {
+ m_builder.append(string.characters8(), string.length());
+ return;
+ }
+
+ m_builder.append(string.characters16(), string.length());
+ }
+
+ void commit()
+ {
+ if (m_builder.isEmpty())
+ return;
+ m_list.append(CSSValuePool::singleton().createFontFamilyValue(m_builder.toString()));
+ m_builder.clear();
+ }
+
+private:
+ StringBuilder m_builder;
+ CSSValueList& m_list;
+};
+
+static bool valueIsCSSKeyword(const CSSParserValue& value)
+{
+ // FIXME: when we add "unset", we should handle it here.
+ return value.id == CSSValueInitial || value.id == CSSValueInherit || value.id == CSSValueDefault;
+}
+
+RefPtr<CSSValueList> CSSParser::parseFontFamily()
+{
+ auto list = CSSValueList::createCommaSeparated();
+ CSSParserValue* value = m_valueList->current();
+
+ FontFamilyValueBuilder familyBuilder(list);
+ bool inFamily = false;
+
+ while (value) {
+ CSSParserValue* nextValue = m_valueList->next();
+ bool nextValBreaksFont = !nextValue ||
+ (nextValue->unit == CSSParserValue::Operator && nextValue->iValue == ',');
+ bool nextValIsFontName = nextValue &&
+ ((nextValue->id >= CSSValueSerif && nextValue->id <= CSSValueWebkitBody) ||
+ (nextValue->unit == CSSPrimitiveValue::CSS_STRING || nextValue->unit == CSSPrimitiveValue::CSS_IDENT));
+
+ bool valueIsKeyword = valueIsCSSKeyword(*value);
+ if (valueIsKeyword && !inFamily) {
+ if (nextValBreaksFont)
+ value = m_valueList->next();
+ else if (nextValIsFontName)
+ value = nextValue;
+ continue;
+ }
+
+ if (value->id >= CSSValueSerif && value->id <= CSSValueWebkitBody) {
+ if (inFamily)
+ familyBuilder.add(value->string);
+ else if (nextValBreaksFont || !nextValIsFontName)
+ list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
+ else {
+ familyBuilder.commit();
+ familyBuilder.add(value->string);
+ inFamily = true;
+ }
+ } else if (value->unit == CSSPrimitiveValue::CSS_STRING) {
+ // Strings never share in a family name.
+ inFamily = false;
+ familyBuilder.commit();
+ list->append(CSSValuePool::singleton().createFontFamilyValue(value->string));
+ } else if (value->unit == CSSPrimitiveValue::CSS_IDENT) {
+ if (inFamily)
+ familyBuilder.add(value->string);
+ else if (nextValBreaksFont || !nextValIsFontName)
+ list->append(CSSValuePool::singleton().createFontFamilyValue(value->string));
+ else {
+ familyBuilder.commit();
+ familyBuilder.add(value->string);
+ inFamily = true;
+ }
+ } else {
+ break;
+ }
+
+ if (!nextValue)
+ break;
+
+ if (nextValBreaksFont) {
+ value = m_valueList->next();
+ familyBuilder.commit();
+ inFamily = false;
+ }
+ else if (nextValIsFontName)
+ value = nextValue;
+ else
+ break;
+ }
+ familyBuilder.commit();
+
+ if (!list->length())
+ return nullptr;
+ return WTFMove(list);
+}
+
+bool CSSParser::parseLineHeight(bool important)
+{
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ CSSValueID id = valueWithCalculation.value().id;
+ bool validPrimitive = false;
+ // normal | <number> | <length> | <percentage> | inherit
+ if (id == CSSValueNormal)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FNumber | FLength | FPercent | FNonNeg));
+ if (validPrimitive && (!m_valueList->next() || inShorthand()))
+ addProperty(CSSPropertyLineHeight, parseValidPrimitive(id, valueWithCalculation), important);
+ return validPrimitive;
+}
+
+bool CSSParser::parseFontSize(bool important)
+{
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ CSSValueID id = valueWithCalculation.value().id;
+ bool validPrimitive = false;
+ // <absolute-size> | <relative-size> | <length> | <percentage> | inherit
+ if (id >= CSSValueXxSmall && id <= CSSValueLarger)
+ validPrimitive = true;
+ else
+ validPrimitive = validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg);
+ if (validPrimitive && (!m_valueList->next() || inShorthand()))
+ addProperty(CSSPropertyFontSize, parseValidPrimitive(id, valueWithCalculation), important);
+ return validPrimitive;
+}
+
+static CSSValueID createFontWeightValueKeyword(int weight)
+{
+ ASSERT(!(weight % 100) && weight >= 100 && weight <= 900);
+ CSSValueID value = static_cast<CSSValueID>(CSSValue100 + weight / 100 - 1);
+ ASSERT(value >= CSSValue100 && value <= CSSValue900);
+ return value;
+}
+
+bool CSSParser::parseFontWeight(bool important)
+{
+ CSSParserValue& value = *m_valueList->current();
+ if ((value.id >= CSSValueNormal) && (value.id <= CSSValue900)) {
+ addProperty(CSSPropertyFontWeight, CSSValuePool::singleton().createIdentifierValue(value.id), important);
+ return true;
+ }
+ ValueWithCalculation valueWithCalculation(value);
+ if (validateUnit(valueWithCalculation, FInteger | FNonNeg, CSSQuirksMode)) {
+ int weight = static_cast<int>(parsedDouble(valueWithCalculation));
+ if (!(weight % 100) && weight >= 100 && weight <= 900) {
+ addProperty(CSSPropertyFontWeight, CSSValuePool::singleton().createIdentifierValue(createFontWeightValueKeyword(weight)), important);
+ return true;
+ }
+ }
+ return false;
+}
+
+bool CSSParser::parseFontSynthesis(bool important)
+{
+ // none | [ weight || style ]
+ CSSParserValue* value = m_valueList->current();
+ if (value && value->id == CSSValueNone) {
+ addProperty(CSSPropertyFontSynthesis, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ m_valueList->next();
+ return true;
+ }
+
+ bool encounteredWeight = false;
+ bool encounteredStyle = false;
+ while (value) {
+ switch (value->id) {
+ case CSSValueWeight:
+ encounteredWeight = true;
+ break;
+ case CSSValueStyle:
+ encounteredStyle = true;
+ break;
+ default:
+ return false;
+ }
+ value = m_valueList->next();
+ }
+
+ auto list = CSSValueList::createSpaceSeparated();
+ if (encounteredWeight)
+ list->append(CSSValuePool::singleton().createIdentifierValue(CSSValueWeight));
+ if (encounteredStyle)
+ list->append(CSSValuePool::singleton().createIdentifierValue(CSSValueStyle));
+ addProperty(CSSPropertyFontSynthesis, WTFMove(list), important);
+ return true;
+}
+
+bool CSSParser::parseFontFaceSrcURI(CSSValueList& valueList)
+{
+ auto uriValue = CSSFontFaceSrcValue::create(completeURL(m_valueList->current()->string));
+
+ CSSParserValue* value = m_valueList->next();
+ if (!value) {
+ valueList.append(WTFMove(uriValue));
+ return true;
+ }
+ if (value->unit == CSSParserValue::Operator && value->iValue == ',') {
+ m_valueList->next();
+ valueList.append(WTFMove(uriValue));
+ return true;
+ }
+
+ if (value->unit != CSSParserValue::Function || !equalLettersIgnoringASCIICase(value->function->name, "format("))
+ return false;
+
+ // FIXME: http://www.w3.org/TR/2011/WD-css3-fonts-20111004/ says that format() contains a comma-separated list of strings,
+ // but CSSFontFaceSrcValue stores only one format. Allowing one format for now.
+ CSSParserValueList* args = value->function->args.get();
+ if (!args || args->size() != 1 || (args->current()->unit != CSSPrimitiveValue::CSS_STRING && args->current()->unit != CSSPrimitiveValue::CSS_IDENT))
+ return false;
+ uriValue->setFormat(args->current()->string);
+ valueList.append(WTFMove(uriValue));
+ value = m_valueList->next();
+ if (value && value->unit == CSSParserValue::Operator && value->iValue == ',')
+ m_valueList->next();
+ return true;
+}
+
+bool CSSParser::parseFontFaceSrcLocal(CSSValueList& valueList)
+{
+ CSSParserValueList* args = m_valueList->current()->function->args.get();
+ if (!args || !args->size())
+ return false;
+
+ if (args->size() == 1 && args->current()->unit == CSSPrimitiveValue::CSS_STRING)
+ valueList.append(CSSFontFaceSrcValue::createLocal(args->current()->string));
+ else if (args->current()->unit == CSSPrimitiveValue::CSS_IDENT) {
+ StringBuilder builder;
+ for (CSSParserValue* localValue = args->current(); localValue; localValue = args->next()) {
+ if (localValue->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+ if (!builder.isEmpty())
+ builder.append(' ');
+ builder.append(localValue->string);
+ }
+ valueList.append(CSSFontFaceSrcValue::createLocal(builder.toString()));
+ } else
+ return false;
+
+ if (CSSParserValue* value = m_valueList->next()) {
+ if (value->unit == CSSParserValue::Operator && value->iValue == ',')
+ m_valueList->next();
+ }
+ return true;
+}
+
+bool CSSParser::parseFontFaceSrc()
+{
+ auto values = CSSValueList::createCommaSeparated();
+
+ while (CSSParserValue* value = m_valueList->current()) {
+ if (value->unit == CSSPrimitiveValue::CSS_URI) {
+ if (!parseFontFaceSrcURI(values))
+ return false;
+ } else if (value->unit == CSSParserValue::Function && equalLettersIgnoringASCIICase(value->function->name, "local(")) {
+ if (!parseFontFaceSrcLocal(values))
+ return false;
+ } else
+ return false;
+ }
+ if (!values->length())
+ return false;
+
+ addProperty(CSSPropertySrc, WTFMove(values), m_important);
+ m_valueList->next();
+ return true;
+}
+
+bool CSSParser::parseFontFaceUnicodeRange()
+{
+ auto values = CSSValueList::createCommaSeparated();
+ bool failed = false;
+ bool operatorExpected = false;
+ for (; m_valueList->current(); m_valueList->next(), operatorExpected = !operatorExpected) {
+ if (operatorExpected) {
+ if (m_valueList->current()->unit == CSSParserValue::Operator && m_valueList->current()->iValue == ',')
+ continue;
+ failed = true;
+ break;
+ }
+ if (m_valueList->current()->unit != CSSPrimitiveValue::CSS_UNICODE_RANGE) {
+ failed = true;
+ break;
+ }
+
+ String rangeString = m_valueList->current()->string;
+ UChar32 from = 0;
+ UChar32 to = 0;
+ unsigned length = rangeString.length();
+
+ if (length < 3) {
+ failed = true;
+ break;
+ }
+
+ unsigned i = 2;
+ while (i < length) {
+ UChar c = rangeString[i];
+ if (c == '-' || c == '?')
+ break;
+ from *= 16;
+ if (c >= '0' && c <= '9')
+ from += c - '0';
+ else if (c >= 'A' && c <= 'F')
+ from += 10 + c - 'A';
+ else if (c >= 'a' && c <= 'f')
+ from += 10 + c - 'a';
+ else {
+ failed = true;
+ break;
+ }
+ i++;
+ }
+ if (failed)
+ break;
+
+ if (i == length)
+ to = from;
+ else if (rangeString[i] == '?') {
+ unsigned span = 1;
+ while (i < length && rangeString[i] == '?') {
+ span *= 16;
+ from *= 16;
+ i++;
+ }
+ if (i < length)
+ failed = true;
+ to = from + span - 1;
+ } else {
+ if (length < i + 2) {
+ failed = true;
+ break;
+ }
+ i++;
+ while (i < length) {
+ UChar c = rangeString[i];
+ to *= 16;
+ if (c >= '0' && c <= '9')
+ to += c - '0';
+ else if (c >= 'A' && c <= 'F')
+ to += 10 + c - 'A';
+ else if (c >= 'a' && c <= 'f')
+ to += 10 + c - 'a';
+ else {
+ failed = true;
+ break;
+ }
+ i++;
+ }
+ if (failed)
+ break;
+ }
+ if (from <= to)
+ values->append(CSSUnicodeRangeValue::create(from, to));
+ }
+ if (failed || !values->length())
+ return false;
+ addProperty(CSSPropertyUnicodeRange, WTFMove(values), m_important);
+ return true;
+}
+
+// Returns the number of characters which form a valid double
+// and are terminated by the given terminator character
+template <typename CharacterType>
+static int checkForValidDouble(const CharacterType* string, const CharacterType* end, const char terminator)
+{
+ int length = end - string;
+ if (length < 1)
+ return 0;
+
+ bool decimalMarkSeen = false;
+ int processedLength = 0;
+
+ for (int i = 0; i < length; ++i) {
+ if (string[i] == terminator) {
+ processedLength = i;
+ break;
+ }
+ if (!isASCIIDigit(string[i])) {
+ if (!decimalMarkSeen && string[i] == '.')
+ decimalMarkSeen = true;
+ else
+ return 0;
+ }
+ }
+
+ if (decimalMarkSeen && processedLength == 1)
+ return 0;
+
+ return processedLength;
+}
+
+// Returns the number of characters consumed for parsing a valid double
+// terminated by the given terminator character
+template <typename CharacterType>
+static int parseDouble(const CharacterType* string, const CharacterType* end, const char terminator, double& value)
+{
+ int length = checkForValidDouble(string, end, terminator);
+ if (!length)
+ return 0;
+
+ int position = 0;
+ double localValue = 0;
+
+ // The consumed characters here are guaranteed to be
+ // ASCII digits with or without a decimal mark
+ for (; position < length; ++position) {
+ if (string[position] == '.')
+ break;
+ localValue = localValue * 10 + string[position] - '0';
+ }
+
+ if (++position == length) {
+ value = localValue;
+ return length;
+ }
+
+ double fraction = 0;
+ double scale = 1;
+
+ while (position < length && scale < MAX_SCALE) {
+ fraction = fraction * 10 + string[position++] - '0';
+ scale *= 10;
+ }
+
+ value = localValue + fraction / scale;
+ return length;
+}
+
+template <typename CharacterType>
+static bool parseColorIntOrPercentage(const CharacterType*& string, const CharacterType* end, const char terminator, CSSPrimitiveValue::UnitTypes& expect, int& value)
+{
+ const CharacterType* current = string;
+ double localValue = 0;
+ bool negative = false;
+ while (current != end && isHTMLSpace(*current))
+ current++;
+ if (current != end && *current == '-') {
+ negative = true;
+ current++;
+ }
+ if (current == end || !isASCIIDigit(*current))
+ return false;
+ while (current != end && isASCIIDigit(*current)) {
+ double newValue = localValue * 10 + *current++ - '0';
+ if (newValue >= 255) {
+ // Clamp values at 255.
+ localValue = 255;
+ while (current != end && isASCIIDigit(*current))
+ ++current;
+ break;
+ }
+ localValue = newValue;
+ }
+
+ if (current == end)
+ return false;
+
+ if (expect == CSSPrimitiveValue::CSS_NUMBER && (*current == '.' || *current == '%'))
+ return false;
+
+ if (*current == '.') {
+ // We already parsed the integral part, try to parse
+ // the fraction part of the percentage value.
+ double percentage = 0;
+ int numCharactersParsed = parseDouble(current, end, '%', percentage);
+ if (!numCharactersParsed)
+ return false;
+ current += numCharactersParsed;
+ if (*current != '%')
+ return false;
+ localValue += percentage;
+ }
+
+ if (expect == CSSPrimitiveValue::CSS_PERCENTAGE && *current != '%')
+ return false;
+
+ if (*current == '%') {
+ expect = CSSPrimitiveValue::CSS_PERCENTAGE;
+ localValue = localValue / 100.0 * 256.0;
+ // Clamp values at 255 for percentages over 100%
+ if (localValue > 255)
+ localValue = 255;
+ current++;
+ } else
+ expect = CSSPrimitiveValue::CSS_NUMBER;
+
+ while (current != end && isHTMLSpace(*current))
+ current++;
+ if (current == end || *current++ != terminator)
+ return false;
+ // Clamp negative values at zero.
+ value = negative ? 0 : static_cast<int>(localValue);
+ string = current;
+ return true;
+}
+
+template <typename CharacterType>
+static inline bool isTenthAlpha(const CharacterType* string, const int length)
+{
+ // "0.X"
+ if (length == 3 && string[0] == '0' && string[1] == '.' && isASCIIDigit(string[2]))
+ return true;
+
+ // ".X"
+ if (length == 2 && string[0] == '.' && isASCIIDigit(string[1]))
+ return true;
+
+ return false;
+}
+
+template <typename CharacterType>
+static inline bool parseAlphaValue(const CharacterType*& string, const CharacterType* end, const char terminator, int& value)
+{
+ while (string != end && isHTMLSpace(*string))
+ ++string;
+
+ bool negative = false;
+
+ if (string != end && *string == '-') {
+ negative = true;
+ ++string;
+ }
+
+ value = 0;
+
+ int length = end - string;
+ if (length < 2)
+ return false;
+
+ if (string[length - 1] != terminator || !isASCIIDigit(string[length - 2]))
+ return false;
+
+ if (string[0] != '0' && string[0] != '1' && string[0] != '.') {
+ if (checkForValidDouble(string, end, terminator)) {
+ value = negative ? 0 : 255;
+ string = end;
+ return true;
+ }
+ return false;
+ }
+
+ if (length == 2 && string[0] != '.') {
+ value = !negative && string[0] == '1' ? 255 : 0;
+ string = end;
+ return true;
+ }
+
+ if (isTenthAlpha(string, length - 1)) {
+ static const int tenthAlphaValues[] = { 0, 25, 51, 76, 102, 127, 153, 179, 204, 230 };
+ value = negative ? 0 : tenthAlphaValues[string[length - 2] - '0'];
+ string = end;
+ return true;
+ }
+
+ double alpha = 0;
+ if (!parseDouble(string, end, terminator, alpha))
+ return false;
+ value = negative ? 0 : static_cast<int>(alpha * nextafter(256.0, 0.0));
+ string = end;
+ return true;
+}
+
+template <typename CharacterType>
+static inline bool mightBeRGBA(const CharacterType* characters, unsigned length)
+{
+ if (length < 5)
+ return false;
+ return characters[4] == '('
+ && isASCIIAlphaCaselessEqual(characters[0], 'r')
+ && isASCIIAlphaCaselessEqual(characters[1], 'g')
+ && isASCIIAlphaCaselessEqual(characters[2], 'b')
+ && isASCIIAlphaCaselessEqual(characters[3], 'a');
+}
+
+template <typename CharacterType>
+static inline bool mightBeRGB(const CharacterType* characters, unsigned length)
+{
+ if (length < 4)
+ return false;
+ return characters[3] == '('
+ && isASCIIAlphaCaselessEqual(characters[0], 'r')
+ && isASCIIAlphaCaselessEqual(characters[1], 'g')
+ && isASCIIAlphaCaselessEqual(characters[2], 'b');
+}
+
+template <typename CharacterType>
+static inline bool fastParseColorInternal(RGBA32& rgb, const CharacterType* characters, unsigned length , bool strict)
+{
+ CSSPrimitiveValue::UnitTypes expect = CSSPrimitiveValue::CSS_UNKNOWN;
+
+ if (!strict && length >= 3) {
+ if (characters[0] == '#') {
+ if (Color::parseHexColor(characters + 1, length - 1, rgb))
+ return true;
+ } else {
+ if (Color::parseHexColor(characters, length, rgb))
+ return true;
+ }
+ }
+
+ // Try rgba() syntax.
+ if (mightBeRGBA(characters, length)) {
+ const CharacterType* current = characters + 5;
+ const CharacterType* end = characters + length;
+ int red;
+ int green;
+ int blue;
+ int alpha;
+
+ if (!parseColorIntOrPercentage(current, end, ',', expect, red))
+ return false;
+ if (!parseColorIntOrPercentage(current, end, ',', expect, green))
+ return false;
+ if (!parseColorIntOrPercentage(current, end, ',', expect, blue))
+ return false;
+ if (!parseAlphaValue(current, end, ')', alpha))
+ return false;
+ if (current != end)
+ return false;
+ rgb = makeRGBA(red, green, blue, alpha);
+ return true;
+ }
+
+ // Try rgb() syntax.
+ if (mightBeRGB(characters, length)) {
+ const CharacterType* current = characters + 4;
+ const CharacterType* end = characters + length;
+ int red;
+ int green;
+ int blue;
+ if (!parseColorIntOrPercentage(current, end, ',', expect, red))
+ return false;
+ if (!parseColorIntOrPercentage(current, end, ',', expect, green))
+ return false;
+ if (!parseColorIntOrPercentage(current, end, ')', expect, blue))
+ return false;
+ if (current != end)
+ return false;
+ rgb = makeRGB(red, green, blue);
+ return true;
+ }
+
+ return false;
+}
+
+template<typename StringType>
+bool CSSParser::fastParseColor(RGBA32& rgb, const StringType& name, bool strict)
+{
+ unsigned length = name.length();
+ bool parseResult;
+
+ if (!length)
+ return false;
+
+ if (name.is8Bit())
+ parseResult = fastParseColorInternal(rgb, name.characters8(), length, strict);
+ else
+ parseResult = fastParseColorInternal(rgb, name.characters16(), length, strict);
+
+ if (parseResult)
+ return true;
+
+ // Try named colors.
+ Color tc;
+ tc.setNamedColor(name);
+ if (tc.isValid()) {
+ rgb = tc.rgb();
+ return true;
+ }
+ return false;
+}
+
+inline double CSSParser::parsedDouble(ValueWithCalculation& valueWithCalculation)
+{
+ return valueWithCalculation.calculation() ? valueWithCalculation.calculation()->doubleValue() : valueWithCalculation.value().fValue;
+}
+
+bool CSSParser::isCalculation(CSSParserValue& value)
+{
+ return value.unit == CSSParserValue::Function
+ && (equalLettersIgnoringASCIICase(value.function->name, "calc(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-calc("));
+}
+
+inline int CSSParser::colorIntFromValue(ValueWithCalculation& valueWithCalculation)
+{
+ bool isPercent;
+
+ if (valueWithCalculation.calculation())
+ isPercent = valueWithCalculation.calculation()->category() == CalcPercent;
+ else
+ isPercent = valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_PERCENTAGE;
+
+ const double doubleValue = parsedDouble(valueWithCalculation);
+
+ if (doubleValue <= 0.0)
+ return 0;
+
+ if (isPercent) {
+ if (doubleValue >= 100.0)
+ return 255;
+ return static_cast<int>(doubleValue * 256.0 / 100.0);
+ }
+
+ if (doubleValue >= 255.0)
+ return 255;
+
+ return static_cast<int>(doubleValue);
+}
+
+bool CSSParser::parseColorParameters(CSSParserValue& value, int* colorArray, bool parseAlpha)
+{
+ CSSParserValueList* args = value.function->args.get();
+ ValueWithCalculation firstArgumentWithCalculation(*args->current());
+ Units unitType = FUnknown;
+ // Get the first value and its type
+ if (validateUnit(firstArgumentWithCalculation, FInteger, CSSStrictMode))
+ unitType = FInteger;
+ else if (validateUnit(firstArgumentWithCalculation, FPercent, CSSStrictMode))
+ unitType = FPercent;
+ else
+ return false;
+
+ colorArray[0] = colorIntFromValue(firstArgumentWithCalculation);
+ for (int i = 1; i < 3; i++) {
+ CSSParserValue& operatorArgument = *args->next();
+ if (operatorArgument.unit != CSSParserValue::Operator && operatorArgument.iValue != ',')
+ return false;
+ ValueWithCalculation argumentWithCalculation(*args->next());
+ if (!validateUnit(argumentWithCalculation, unitType, CSSStrictMode))
+ return false;
+ colorArray[i] = colorIntFromValue(argumentWithCalculation);
+ }
+ if (parseAlpha) {
+ CSSParserValue& operatorArgument = *args->next();
+ if (operatorArgument.unit != CSSParserValue::Operator && operatorArgument.iValue != ',')
+ return false;
+ ValueWithCalculation argumentWithCalculation(*args->next());
+ if (!validateUnit(argumentWithCalculation, FNumber, CSSStrictMode))
+ return false;
+ double doubleValue = parsedDouble(argumentWithCalculation);
+ // Convert the floating pointer number of alpha to an integer in the range [0, 256),
+ // with an equal distribution across all 256 values.
+ colorArray[3] = static_cast<int>(std::max<double>(0, std::min<double>(1, doubleValue)) * nextafter(256.0, 0.0));
+ }
+ return true;
+}
+
+// The CSS3 specification defines the format of a HSL color as
+// hsl(<number>, <percent>, <percent>)
+// and with alpha, the format is
+// hsla(<number>, <percent>, <percent>, <number>)
+// The first value, HUE, is in an angle with a value between 0 and 360
+bool CSSParser::parseHSLParameters(CSSParserValue& value, double* colorArray, bool parseAlpha)
+{
+ CSSParserValueList* args = value.function->args.get();
+ ValueWithCalculation firstArgumentWithCalculation(*args->current());
+ // Get the first value
+ if (!validateUnit(firstArgumentWithCalculation, FNumber, CSSStrictMode))
+ return false;
+ // normalize the Hue value and change it to be between 0 and 1.0
+ colorArray[0] = (((static_cast<int>(parsedDouble(firstArgumentWithCalculation)) % 360) + 360) % 360) / 360.0;
+ for (int i = 1; i < 3; ++i) {
+ CSSParserValue& operatorArgument = *args->next();
+ if (operatorArgument.unit != CSSParserValue::Operator && operatorArgument.iValue != ',')
+ return false;
+ ValueWithCalculation argumentWithCalculation(*args->next());
+ if (!validateUnit(argumentWithCalculation, FPercent, CSSStrictMode))
+ return false;
+ colorArray[i] = std::max<double>(0, std::min<double>(100, parsedDouble(argumentWithCalculation))) / 100.0; // needs to be value between 0 and 1.0
+ }
+ if (parseAlpha) {
+ CSSParserValue& operatorArgument = *args->next();
+ if (operatorArgument.unit != CSSParserValue::Operator && operatorArgument.iValue != ',')
+ return false;
+ ValueWithCalculation argumentWithCalculation(*args->next());
+ if (!validateUnit(argumentWithCalculation, FNumber, CSSStrictMode))
+ return false;
+ colorArray[3] = std::max<double>(0, std::min<double>(1, parsedDouble(argumentWithCalculation)));
+ }
+ return true;
+}
+
+RefPtr<CSSPrimitiveValue> CSSParser::parseColor(CSSParserValue* value)
+{
+ RGBA32 c = Color::transparent;
+ if (!parseColorFromValue(value ? *value : *m_valueList->current(), c))
+ return nullptr;
+ return CSSValuePool::singleton().createColorValue(c);
+}
+
+bool CSSParser::parseColorFromValue(CSSParserValue& value, RGBA32& c)
+{
+ if (inQuirksMode() && value.unit == CSSPrimitiveValue::CSS_NUMBER
+ && value.fValue >= 0. && value.fValue < 1000000.) {
+ String str = String::format("%06d", static_cast<int>((value.fValue+.5)));
+ // FIXME: This should be strict parsing for SVG as well.
+ if (!fastParseColor(c, str, inStrictMode()))
+ return false;
+ } else if (value.unit == CSSPrimitiveValue::CSS_PARSER_HEXCOLOR
+ || value.unit == CSSPrimitiveValue::CSS_IDENT
+ || (inQuirksMode() && value.unit == CSSPrimitiveValue::CSS_DIMENSION)) {
+ if (!fastParseColor(c, value.string, inStrictMode() && value.unit == CSSPrimitiveValue::CSS_IDENT))
+ return false;
+ } else if (value.unit == CSSParserValue::Function
+ && value.function->args
+ && value.function->args->size() == 5 /* rgb + two commas */
+ && equalLettersIgnoringASCIICase(value.function->name, "rgb(")) {
+ int colorValues[3];
+ if (!parseColorParameters(value, colorValues, false))
+ return false;
+ c = makeRGB(colorValues[0], colorValues[1], colorValues[2]);
+ } else {
+ if (value.unit == CSSParserValue::Function
+ && value.function->args
+ && value.function->args->size() == 7 /* rgba + three commas */
+ && equalLettersIgnoringASCIICase(value.function->name, "rgba(")) {
+ int colorValues[4];
+ if (!parseColorParameters(value, colorValues, true))
+ return false;
+ c = makeRGBA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]);
+ } else if (value.unit == CSSParserValue::Function
+ && value.function->args
+ && value.function->args->size() == 5 /* hsl + two commas */
+ && equalLettersIgnoringASCIICase(value.function->name, "hsl(")) {
+ double colorValues[3];
+ if (!parseHSLParameters(value, colorValues, false))
+ return false;
+ c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], 1.0);
+ } else if (value.unit == CSSParserValue::Function
+ && value.function->args
+ && value.function->args->size() == 7 /* hsla + three commas */
+ && equalLettersIgnoringASCIICase(value.function->name, "hsla(")) {
+ double colorValues[4];
+ if (!parseHSLParameters(value, colorValues, true))
+ return false;
+ c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]);
+ } else
+ return false;
+ }
+
+ return true;
+}
+
+// This class tracks parsing state for shadow values. If it goes out of scope (e.g., due to an early return)
+// without the allowBreak bit being set, then it will clean up all of the objects and destroy them.
+struct ShadowParseContext {
+ ShadowParseContext(CSSPropertyID prop, CSSParser& parser)
+ : property(prop)
+ , m_parser(parser)
+ , allowX(true)
+ , allowY(false)
+ , allowBlur(false)
+ , allowSpread(false)
+ , allowColor(true)
+ , allowStyle(prop == CSSPropertyWebkitBoxShadow || prop == CSSPropertyBoxShadow)
+ , allowBreak(true)
+ {
+ }
+
+ bool allowLength() { return allowX || allowY || allowBlur || allowSpread; }
+
+ void commitValue()
+ {
+ // Handle the ,, case gracefully by doing nothing.
+ if (x || y || blur || spread || color || style) {
+ if (!values)
+ values = CSSValueList::createCommaSeparated();
+
+ // Construct the current shadow value and add it to the list.
+ values->append(CSSShadowValue::create(WTFMove(x), WTFMove(y), WTFMove(blur), WTFMove(spread), WTFMove(style), WTFMove(color)));
+ }
+
+ // Now reset for the next shadow value.
+ x = nullptr;
+ y = nullptr;
+ blur = nullptr;
+ spread = nullptr;
+ style = nullptr;
+ color = nullptr;
+
+ allowX = true;
+ allowColor = true;
+ allowBreak = true;
+ allowY = false;
+ allowBlur = false;
+ allowSpread = false;
+ allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
+ }
+
+ void commitLength(CSSParser::ValueWithCalculation& valueWithCalculation)
+ {
+ auto primitiveValue = m_parser.createPrimitiveNumericValue(valueWithCalculation);
+
+ if (allowX) {
+ x = WTFMove(primitiveValue);
+ allowX = false;
+ allowY = true;
+ allowColor = false;
+ allowStyle = false;
+ allowBreak = false;
+ } else if (allowY) {
+ y = WTFMove(primitiveValue);
+ allowY = false;
+ allowBlur = true;
+ allowColor = true;
+ allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
+ allowBreak = true;
+ } else if (allowBlur) {
+ blur = WTFMove(primitiveValue);
+ allowBlur = false;
+ allowSpread = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
+ } else if (allowSpread) {
+ spread = WTFMove(primitiveValue);
+ allowSpread = false;
+ }
+ }
+
+ void commitColor(RefPtr<CSSPrimitiveValue>&& val)
+ {
+ color = val;
+ allowColor = false;
+ if (allowX) {
+ allowStyle = false;
+ allowBreak = false;
+ } else {
+ allowBlur = false;
+ allowSpread = false;
+ allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
+ }
+ }
+
+ void commitStyle(CSSParserValue& value)
+ {
+ style = CSSValuePool::singleton().createIdentifierValue(value.id);
+ allowStyle = false;
+ if (allowX)
+ allowBreak = false;
+ else {
+ allowBlur = false;
+ allowSpread = false;
+ allowColor = false;
+ }
+ }
+
+ CSSPropertyID property;
+ CSSParser& m_parser;
+
+ RefPtr<CSSValueList> values;
+ RefPtr<CSSPrimitiveValue> x;
+ RefPtr<CSSPrimitiveValue> y;
+ RefPtr<CSSPrimitiveValue> blur;
+ RefPtr<CSSPrimitiveValue> spread;
+ RefPtr<CSSPrimitiveValue> style;
+ RefPtr<CSSPrimitiveValue> color;
+
+ bool allowX;
+ bool allowY;
+ bool allowBlur;
+ bool allowSpread;
+ bool allowColor;
+ bool allowStyle; // inset or not.
+ bool allowBreak;
+};
+
+RefPtr<CSSValueList> CSSParser::parseShadow(CSSParserValueList& valueList, CSSPropertyID propId)
+{
+ ShadowParseContext context(propId, *this);
+ CSSParserValue* value;
+ while ((value = valueList.current())) {
+ ValueWithCalculation valueWithCalculation(*value);
+ // Check for a comma break first.
+ if (value->unit == CSSParserValue::Operator) {
+ if (value->iValue != ',' || !context.allowBreak) {
+ // Other operators aren't legal or we aren't done with the current shadow
+ // value. Treat as invalid.
+ return nullptr;
+ }
+ // -webkit-svg-shadow does not support multiple values.
+ if (propId == CSSPropertyWebkitSvgShadow)
+ return nullptr;
+ // The value is good. Commit it.
+ context.commitValue();
+ } else if (validateUnit(valueWithCalculation, FLength, CSSStrictMode)) {
+ // We required a length and didn't get one. Invalid.
+ if (!context.allowLength())
+ return nullptr;
+
+ // Blur radius must be non-negative.
+ if (context.allowBlur && !validateUnit(valueWithCalculation, FLength | FNonNeg, CSSStrictMode))
+ return nullptr;
+
+ // A length is allowed here. Construct the value and add it.
+ context.commitLength(valueWithCalculation);
+ } else if (value->id == CSSValueInset) {
+ if (!context.allowStyle)
+ return nullptr;
+
+ context.commitStyle(valueWithCalculation);
+ } else {
+ // The only other type of value that's ok is a color value.
+ RefPtr<CSSPrimitiveValue> parsedColor;
+ bool isColor = (isValidSystemColorValue(value->id) || value->id == CSSValueMenu
+ || (value->id >= CSSValueWebkitFocusRingColor && value->id <= CSSValueWebkitText && inQuirksMode())
+ || value->id == CSSValueCurrentcolor);
+ if (isColor) {
+ if (!context.allowColor)
+ return nullptr;
+ parsedColor = CSSValuePool::singleton().createIdentifierValue(value->id);
+ }
+
+ if (!parsedColor)
+ // It's not built-in. Try to parse it as a color.
+ parsedColor = parseColor(value);
+
+ if (!parsedColor || !context.allowColor)
+ return nullptr; // This value is not a color or length and is invalid or
+ // it is a color, but a color isn't allowed at this point.
+
+ context.commitColor(parsedColor.releaseNonNull());
+ }
+
+ valueList.next();
+ }
+
+ if (context.allowBreak) {
+ context.commitValue();
+ if (context.values && context.values->length())
+ return WTFMove(context.values);
+ }
+
+ return nullptr;
+}
+
+bool CSSParser::parseReflect(CSSPropertyID propId, bool important)
+{
+ // box-reflect: <direction> <offset> <mask>
+
+ // Direction comes first.
+ CSSParserValue* value = m_valueList->current();
+ RefPtr<CSSPrimitiveValue> direction;
+ switch (value->id) {
+ case CSSValueAbove:
+ case CSSValueBelow:
+ case CSSValueLeft:
+ case CSSValueRight:
+ direction = CSSValuePool::singleton().createIdentifierValue(value->id);
+ break;
+ default:
+ return false;
+ }
+
+ // The offset comes next.
+ value = m_valueList->next();
+ RefPtr<CSSPrimitiveValue> offset;
+ if (!value)
+ offset = CSSValuePool::singleton().createValue(0, CSSPrimitiveValue::CSS_PX);
+ else {
+ ValueWithCalculation valueWithCalculation(*value);
+ if (!validateUnit(valueWithCalculation, FLength | FPercent))
+ return false;
+ offset = createPrimitiveNumericValue(valueWithCalculation);
+ }
+
+ // Now for the mask.
+ RefPtr<CSSValue> mask;
+ value = m_valueList->next();
+ if (value) {
+ if (!parseBorderImage(propId, mask))
+ return false;
+ }
+
+ addProperty(propId, CSSReflectValue::create(direction.releaseNonNull(), offset.releaseNonNull(), WTFMove(mask)), important);
+ m_valueList->next();
+ return true;
+}
+
+bool CSSParser::parseFlex(CSSParserValueList& args, bool important)
+{
+ if (!args.size() || args.size() > 3)
+ return false;
+ static const double unsetValue = -1;
+ double flexGrow = unsetValue;
+ double flexShrink = unsetValue;
+ RefPtr<CSSPrimitiveValue> flexBasis;
+
+ while (CSSParserValue* argument = args.current()) {
+ ValueWithCalculation argumentWithCalculation(*argument);
+ if (validateUnit(argumentWithCalculation, FNumber | FNonNeg)) {
+ if (flexGrow == unsetValue)
+ flexGrow = parsedDouble(argumentWithCalculation);
+ else if (flexShrink == unsetValue)
+ flexShrink = parsedDouble(argumentWithCalculation);
+ else if (!parsedDouble(argumentWithCalculation)) {
+ // flex only allows a basis of 0 (sans units) if flex-grow and flex-shrink values have already been set.
+ flexBasis = CSSValuePool::singleton().createValue(0, CSSPrimitiveValue::CSS_PX);
+ } else {
+ // We only allow 3 numbers without units if the last value is 0. E.g., flex:1 1 1 is invalid.
+ return false;
+ }
+ } else if (!flexBasis && (argumentWithCalculation.value().id == CSSValueAuto || validateUnit(argumentWithCalculation, FLength | FPercent | FNonNeg)))
+ flexBasis = parseValidPrimitive(argumentWithCalculation.value().id, argumentWithCalculation);
+ else {
+ // Not a valid arg for flex.
+ return false;
+ }
+ args.next();
+ }
+
+ if (flexGrow == unsetValue)
+ flexGrow = 1;
+ if (flexShrink == unsetValue)
+ flexShrink = 1;
+ if (!flexBasis)
+ flexBasis = CSSValuePool::singleton().createValue(0, CSSPrimitiveValue::CSS_PX);
+
+ addProperty(CSSPropertyFlexGrow, CSSValuePool::singleton().createValue(clampToFloat(flexGrow), CSSPrimitiveValue::CSS_NUMBER), important);
+ addProperty(CSSPropertyFlexShrink, CSSValuePool::singleton().createValue(clampToFloat(flexShrink), CSSPrimitiveValue::CSS_NUMBER), important);
+ addProperty(CSSPropertyFlexBasis, flexBasis.releaseNonNull(), important);
+ return true;
+}
+
+struct BorderImageParseContext {
+ BorderImageParseContext()
+ : m_canAdvance(false)
+ , m_allowCommit(true)
+ , m_allowImage(true)
+ , m_allowImageSlice(true)
+ , m_allowRepeat(true)
+ , m_allowForwardSlashOperator(false)
+ , m_requireWidth(false)
+ , m_requireOutset(false)
+ {}
+
+ bool canAdvance() const { return m_canAdvance; }
+ void setCanAdvance(bool canAdvance) { m_canAdvance = canAdvance; }
+
+ bool allowCommit() const { return m_allowCommit; }
+ bool allowImage() const { return m_allowImage; }
+ bool allowImageSlice() const { return m_allowImageSlice; }
+ bool allowRepeat() const { return m_allowRepeat; }
+ bool allowForwardSlashOperator() const { return m_allowForwardSlashOperator; }
+
+ bool requireWidth() const { return m_requireWidth; }
+ bool requireOutset() const { return m_requireOutset; }
+
+ void commitImage(RefPtr<CSSValue>&& image)
+ {
+ m_image = WTFMove(image);
+ m_canAdvance = true;
+ m_allowCommit = true;
+ m_allowImage = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
+ m_allowImageSlice = !m_imageSlice;
+ m_allowRepeat = !m_repeat;
+ }
+ void commitImageSlice(RefPtr<CSSBorderImageSliceValue>&& slice)
+ {
+ m_imageSlice = WTFMove(slice);
+ m_canAdvance = true;
+ m_allowCommit = m_allowForwardSlashOperator = true;
+ m_allowImageSlice = m_requireWidth = m_requireOutset = false;
+ m_allowImage = !m_image;
+ m_allowRepeat = !m_repeat;
+ }
+ void commitForwardSlashOperator()
+ {
+ m_canAdvance = true;
+ m_allowCommit = m_allowImage = m_allowImageSlice = m_allowRepeat = m_allowForwardSlashOperator = false;
+ if (!m_borderSlice) {
+ m_requireWidth = true;
+ m_requireOutset = false;
+ } else {
+ m_requireOutset = true;
+ m_requireWidth = false;
+ }
+ }
+ void commitBorderWidth(RefPtr<CSSPrimitiveValue>&& slice)
+ {
+ m_borderSlice = WTFMove(slice);
+ m_canAdvance = true;
+ m_allowCommit = m_allowForwardSlashOperator = true;
+ m_allowImageSlice = m_requireWidth = m_requireOutset = false;
+ m_allowImage = !m_image;
+ m_allowRepeat = !m_repeat;
+ }
+ void commitBorderOutset(RefPtr<CSSPrimitiveValue>&& outset)
+ {
+ m_outset = WTFMove(outset);
+ m_canAdvance = true;
+ m_allowCommit = true;
+ m_allowImageSlice = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
+ m_allowImage = !m_image;
+ m_allowRepeat = !m_repeat;
+ }
+ void commitRepeat(RefPtr<CSSValue>&& repeat)
+ {
+ m_repeat = WTFMove(repeat);
+ m_canAdvance = true;
+ m_allowCommit = true;
+ m_allowRepeat = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
+ m_allowImageSlice = !m_imageSlice;
+ m_allowImage = !m_image;
+ }
+
+ Ref<CSSValue> commitWebKitBorderImage()
+ {
+ return createBorderImageValue(m_image.copyRef(), m_imageSlice.copyRef(), m_borderSlice.copyRef(), m_outset.copyRef(), m_repeat.copyRef());
+ }
+
+ void commitBorderImage(CSSParser& parser, bool important)
+ {
+ commitBorderImageProperty(CSSPropertyBorderImageSource, parser, WTFMove(m_image), important);
+ commitBorderImageProperty(CSSPropertyBorderImageSlice, parser, m_imageSlice, important);
+ commitBorderImageProperty(CSSPropertyBorderImageWidth, parser, m_borderSlice, important);
+ commitBorderImageProperty(CSSPropertyBorderImageOutset, parser, m_outset, important);
+ commitBorderImageProperty(CSSPropertyBorderImageRepeat, parser, WTFMove(m_repeat), important);
+ }
+
+ void commitBorderImageProperty(CSSPropertyID propId, CSSParser& parser, RefPtr<CSSValue>&& value, bool important)
+ {
+ if (value)
+ parser.addProperty(propId, value.releaseNonNull(), important);
+ else
+ parser.addProperty(propId, CSSValuePool::singleton().createImplicitInitialValue(), important, true);
+ }
+
+ bool m_canAdvance;
+
+ bool m_allowCommit;
+ bool m_allowImage;
+ bool m_allowImageSlice;
+ bool m_allowRepeat;
+ bool m_allowForwardSlashOperator;
+
+ bool m_requireWidth;
+ bool m_requireOutset;
+
+ RefPtr<CSSValue> m_image;
+ RefPtr<CSSBorderImageSliceValue> m_imageSlice;
+ RefPtr<CSSPrimitiveValue> m_borderSlice;
+ RefPtr<CSSPrimitiveValue> m_outset;
+
+ RefPtr<CSSValue> m_repeat;
+};
+
+bool CSSParser::parseBorderImage(CSSPropertyID propId, RefPtr<CSSValue>& result, bool important)
+{
+ ShorthandScope scope(this, propId);
+ BorderImageParseContext context;
+ while (CSSParserValue* currentValue = m_valueList->current()) {
+ context.setCanAdvance(false);
+
+ if (!context.canAdvance() && context.allowForwardSlashOperator() && isForwardSlashOperator(*currentValue))
+ context.commitForwardSlashOperator();
+
+ if (!context.canAdvance() && context.allowImage()) {
+ if (currentValue->unit == CSSPrimitiveValue::CSS_URI)
+ context.commitImage(CSSImageValue::create(completeURL(currentValue->string)));
+ else if (isGeneratedImageValue(*currentValue)) {
+ RefPtr<CSSValue> value;
+ if (parseGeneratedImage(*m_valueList, value))
+ context.commitImage(WTFMove(value));
+ else
+ return false;
+ } else if (isImageSetFunctionValue(*currentValue)) {
+ RefPtr<CSSValue> value = parseImageSet();
+ if (value)
+ context.commitImage(value.releaseNonNull());
+ else
+ return false;
+ } else if (currentValue->id == CSSValueNone)
+ context.commitImage(CSSValuePool::singleton().createIdentifierValue(CSSValueNone));
+ }
+
+ if (!context.canAdvance() && context.allowImageSlice()) {
+ RefPtr<CSSBorderImageSliceValue> imageSlice;
+ if (parseBorderImageSlice(propId, imageSlice))
+ context.commitImageSlice(WTFMove(imageSlice));
+ }
+
+ if (!context.canAdvance() && context.allowRepeat()) {
+ RefPtr<CSSValue> repeat;
+ if (parseBorderImageRepeat(repeat))
+ context.commitRepeat(WTFMove(repeat));
+ }
+
+ if (!context.canAdvance() && context.requireWidth()) {
+ RefPtr<CSSPrimitiveValue> borderSlice;
+ if (parseBorderImageWidth(borderSlice))
+ context.commitBorderWidth(WTFMove(borderSlice));
+ }
+
+ if (!context.canAdvance() && context.requireOutset()) {
+ RefPtr<CSSPrimitiveValue> borderOutset;
+ if (parseBorderImageOutset(borderOutset))
+ context.commitBorderOutset(WTFMove(borderOutset));
+ }
+
+ if (!context.canAdvance())
+ return false;
+
+ m_valueList->next();
+ }
+
+ if (context.allowCommit()) {
+ if (propId == CSSPropertyBorderImage)
+ context.commitBorderImage(*this, important);
+ else
+ // Need to fully commit as a single value.
+ result = context.commitWebKitBorderImage();
+ return true;
+ }
+
+ return false;
+}
+
+static bool isBorderImageRepeatKeyword(int id)
+{
+ return id == CSSValueStretch || id == CSSValueRepeat || id == CSSValueSpace || id == CSSValueRound;
+}
+
+bool CSSParser::parseBorderImageRepeat(RefPtr<CSSValue>& result)
+{
+ RefPtr<CSSPrimitiveValue> firstValue;
+ RefPtr<CSSPrimitiveValue> secondValue;
+ CSSParserValue* val = m_valueList->current();
+ if (!val)
+ return false;
+ if (isBorderImageRepeatKeyword(val->id))
+ firstValue = CSSValuePool::singleton().createIdentifierValue(val->id);
+ else
+ return false;
+
+ val = m_valueList->next();
+ if (val) {
+ if (isBorderImageRepeatKeyword(val->id))
+ secondValue = CSSValuePool::singleton().createIdentifierValue(val->id);
+ else if (!inShorthand()) {
+ // If we're not parsing a shorthand then we are invalid.
+ return false;
+ } else {
+ // We need to rewind the value list, so that when its advanced we'll
+ // end up back at this value.
+ m_valueList->previous();
+ secondValue = firstValue;
+ }
+ } else
+ secondValue = firstValue;
+
+ result = createPrimitiveValuePair(firstValue.releaseNonNull(), secondValue.releaseNonNull());
+ return true;
+}
+
+class BorderImageSliceParseContext {
+public:
+ BorderImageSliceParseContext(CSSParser& parser)
+ : m_parser(parser)
+ , m_allowNumber(true)
+ , m_allowFill(true)
+ , m_allowFinalCommit(false)
+ , m_fill(false)
+ { }
+
+ bool allowNumber() const { return m_allowNumber; }
+ bool allowFill() const { return m_allowFill; }
+ bool allowFinalCommit() const { return m_allowFinalCommit; }
+ CSSPrimitiveValue* top() const { return m_top.get(); }
+
+ void commitNumber(CSSParser::ValueWithCalculation& valueWithCalculation)
+ {
+ auto primitiveValue = m_parser.createPrimitiveNumericValue(valueWithCalculation);
+ if (!m_top)
+ m_top = WTFMove(primitiveValue);
+ else if (!m_right)
+ m_right = WTFMove(primitiveValue);
+ else if (!m_bottom)
+ m_bottom = WTFMove(primitiveValue);
+ else {
+ ASSERT(!m_left);
+ m_left = WTFMove(primitiveValue);
+ }
+
+ m_allowNumber = !m_left;
+ m_allowFinalCommit = true;
+ }
+
+ void commitFill() { m_fill = true; m_allowFill = false; m_allowNumber = !m_top; }
+
+ Ref<CSSBorderImageSliceValue> commitBorderImageSlice()
+ {
+ // We need to clone and repeat values for any omissions.
+ ASSERT(m_top);
+ if (!m_right) {
+ m_right = m_top;
+ m_bottom = m_top;
+ m_left = m_top;
+ }
+ if (!m_bottom) {
+ m_bottom = m_top;
+ m_left = m_right;
+ }
+ if (!m_left)
+ m_left = m_right;
+
+ // Now build a rect value to hold all four of our primitive values.
+ auto quad = Quad::create();
+ quad->setTop(m_top.copyRef());
+ quad->setRight(m_right.copyRef());
+ quad->setBottom(m_bottom.copyRef());
+ quad->setLeft(m_left.copyRef());
+
+ // Make our new border image value now.
+ return CSSBorderImageSliceValue::create(CSSValuePool::singleton().createValue(WTFMove(quad)), m_fill);
+ }
+
+private:
+ CSSParser& m_parser;
+
+ bool m_allowNumber;
+ bool m_allowFill;
+ bool m_allowFinalCommit;
+
+ RefPtr<CSSPrimitiveValue> m_top;
+ RefPtr<CSSPrimitiveValue> m_right;
+ RefPtr<CSSPrimitiveValue> m_bottom;
+ RefPtr<CSSPrimitiveValue> m_left;
+
+ bool m_fill;
+};
+
+bool CSSParser::parseBorderImageSlice(CSSPropertyID propId, RefPtr<CSSBorderImageSliceValue>& result)
+{
+ BorderImageSliceParseContext context(*this);
+ CSSParserValue* value;
+ while ((value = m_valueList->current())) {
+ ValueWithCalculation valueWithCalculation(*value);
+ // FIXME calc() http://webkit.org/b/16662 : calc is parsed but values are not created yet.
+ if (context.allowNumber() && !isCalculation(valueWithCalculation) && validateUnit(valueWithCalculation, FInteger | FNonNeg | FPercent, CSSStrictMode)) {
+ context.commitNumber(valueWithCalculation);
+ } else if (context.allowFill() && value->id == CSSValueFill)
+ context.commitFill();
+ else if (!inShorthand()) {
+ // If we're not parsing a shorthand then we are invalid.
+ return false;
+ } else {
+ if (context.allowFinalCommit()) {
+ // We're going to successfully parse, but we don't want to consume this token.
+ m_valueList->previous();
+ }
+ break;
+ }
+ m_valueList->next();
+ }
+
+ if (context.allowFinalCommit()) {
+ // FIXME: For backwards compatibility, -webkit-border-image, -webkit-mask-box-image and -webkit-box-reflect have to do a fill by default.
+ // FIXME: What do we do with -webkit-box-reflect and -webkit-mask-box-image? Probably just have to leave them filling...
+ if (propId == CSSPropertyWebkitBorderImage || propId == CSSPropertyWebkitMaskBoxImage || propId == CSSPropertyWebkitBoxReflect)
+ context.commitFill();
+
+ // Need to fully commit as a single value.
+ result = context.commitBorderImageSlice();
+ return true;
+ }
+
+ return false;
+}
+
+class BorderImageQuadParseContext {
+public:
+ BorderImageQuadParseContext(CSSParser& parser)
+ : m_parser(parser)
+ , m_allowNumber(true)
+ , m_allowFinalCommit(false)
+ { }
+
+ bool allowNumber() const { return m_allowNumber; }
+ bool allowFinalCommit() const { return m_allowFinalCommit; }
+ CSSPrimitiveValue* top() const { return m_top.get(); }
+
+ void commitNumber(CSSParser::ValueWithCalculation& valueWithCalculation)
+ {
+ RefPtr<CSSPrimitiveValue> primitiveValue;
+ if (valueWithCalculation.value().id == CSSValueAuto)
+ primitiveValue = CSSValuePool::singleton().createIdentifierValue(valueWithCalculation.value().id);
+ else
+ primitiveValue = m_parser.createPrimitiveNumericValue(valueWithCalculation);
+
+ if (!m_top)
+ m_top = WTFMove(primitiveValue);
+ else if (!m_right)
+ m_right = WTFMove(primitiveValue);
+ else if (!m_bottom)
+ m_bottom = WTFMove(primitiveValue);
+ else {
+ ASSERT(!m_left);
+ m_left = WTFMove(primitiveValue);
+ }
+
+ m_allowNumber = !m_left;
+ m_allowFinalCommit = true;
+ }
+
+ void setAllowFinalCommit() { m_allowFinalCommit = true; }
+ void setTop(RefPtr<CSSPrimitiveValue>&& val) { m_top = WTFMove(val); }
+
+ Ref<CSSPrimitiveValue> commitBorderImageQuad()
+ {
+ // We need to clone and repeat values for any omissions.
+ ASSERT(m_top);
+ if (!m_right) {
+ m_right = m_top;
+ m_bottom = m_top;
+ m_left = m_top;
+ }
+ if (!m_bottom) {
+ m_bottom = m_top;
+ m_left = m_right;
+ }
+ if (!m_left)
+ m_left = m_right;
+
+ // Now build a quad value to hold all four of our primitive values.
+ auto quad = Quad::create();
+ quad->setTop(m_top.copyRef());
+ quad->setRight(m_right.copyRef());
+ quad->setBottom(m_bottom.copyRef());
+ quad->setLeft(m_left.copyRef());
+
+ // Make our new value now.
+ return CSSValuePool::singleton().createValue(WTFMove(quad));
+ }
+
+private:
+ CSSParser& m_parser;
+
+ bool m_allowNumber;
+ bool m_allowFinalCommit;
+
+ RefPtr<CSSPrimitiveValue> m_top;
+ RefPtr<CSSPrimitiveValue> m_right;
+ RefPtr<CSSPrimitiveValue> m_bottom;
+ RefPtr<CSSPrimitiveValue> m_left;
+};
+
+bool CSSParser::parseBorderImageQuad(Units validUnits, RefPtr<CSSPrimitiveValue>& result)
+{
+ BorderImageQuadParseContext context(*this);
+ CSSParserValue* value;
+ while ((value = m_valueList->current())) {
+ ValueWithCalculation valueWithCalculation(*value);
+ if (context.allowNumber() && (validateUnit(valueWithCalculation, validUnits, CSSStrictMode) || value->id == CSSValueAuto)) {
+ context.commitNumber(valueWithCalculation);
+ } else if (!inShorthand()) {
+ // If we're not parsing a shorthand then we are invalid.
+ return false;
+ } else {
+ if (context.allowFinalCommit())
+ m_valueList->previous(); // The shorthand loop will advance back to this point.
+ break;
+ }
+ m_valueList->next();
+ }
+
+ if (context.allowFinalCommit()) {
+ // Need to fully commit as a single value.
+ result = context.commitBorderImageQuad();
+ return true;
+ }
+ return false;
+}
+
+bool CSSParser::parseBorderImageWidth(RefPtr<CSSPrimitiveValue>& result)
+{
+ return parseBorderImageQuad(FLength | FInteger | FNonNeg | FPercent, result);
+}
+
+bool CSSParser::parseBorderImageOutset(RefPtr<CSSPrimitiveValue>& result)
+{
+ return parseBorderImageQuad(FLength | FInteger | FNonNeg, result);
+}
+
+bool CSSParser::parseBorderRadius(CSSPropertyID propId, bool important)
+{
+ unsigned num = m_valueList->size();
+ if (num > 9)
+ return false;
+
+ ShorthandScope scope(this, propId);
+ RefPtr<CSSPrimitiveValue> radii[2][4];
+
+ unsigned indexAfterSlash = 0;
+ for (unsigned i = 0; i < num; ++i) {
+ CSSParserValue& value = *m_valueList->valueAt(i);
+ if (value.unit == CSSParserValue::Operator) {
+ if (value.iValue != '/')
+ return false;
+
+ if (!i || indexAfterSlash || i + 1 == num || num > i + 5)
+ return false;
+
+ indexAfterSlash = i + 1;
+ completeBorderRadii(radii[0]);
+ continue;
+ }
+
+ if (i - indexAfterSlash >= 4)
+ return false;
+
+ ValueWithCalculation valueWithCalculation(value);
+ if (!validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg))
+ return false;
+
+ auto radius = createPrimitiveNumericValue(valueWithCalculation);
+
+ if (!indexAfterSlash) {
+ radii[0][i] = WTFMove(radius);
+
+ // Legacy syntax: -webkit-border-radius: l1 l2; is equivalent to border-radius: l1 / l2;
+ if (num == 2 && propId == CSSPropertyWebkitBorderRadius) {
+ indexAfterSlash = 1;
+ completeBorderRadii(radii[0]);
+ }
+ } else
+ radii[1][i - indexAfterSlash] = WTFMove(radius);
+ }
+
+ if (!indexAfterSlash) {
+ completeBorderRadii(radii[0]);
+ for (unsigned i = 0; i < 4; ++i)
+ radii[1][i] = radii[0][i];
+ } else
+ completeBorderRadii(radii[1]);
+
+ ImplicitScope implicitScope(*this, PropertyImplicit);
+ addProperty(CSSPropertyBorderTopLeftRadius, createPrimitiveValuePair(WTFMove(radii[0][0]), WTFMove(radii[1][0])), important);
+ addProperty(CSSPropertyBorderTopRightRadius, createPrimitiveValuePair(WTFMove(radii[0][1]), WTFMove(radii[1][1])), important);
+ addProperty(CSSPropertyBorderBottomRightRadius, createPrimitiveValuePair(WTFMove(radii[0][2]), WTFMove(radii[1][2])), important);
+ addProperty(CSSPropertyBorderBottomLeftRadius, createPrimitiveValuePair(WTFMove(radii[0][3]), WTFMove(radii[1][3])), important);
+ return true;
+}
+
+bool CSSParser::parseAspectRatio(bool important)
+{
+ unsigned num = m_valueList->size();
+ if (num == 1) {
+ CSSValueID valueId = m_valueList->valueAt(0)->id;
+ if (valueId == CSSValueAuto || valueId == CSSValueFromDimensions || valueId == CSSValueFromIntrinsic) {
+ addProperty(CSSPropertyWebkitAspectRatio, CSSValuePool::singleton().createIdentifierValue(valueId), important);
+ return true;
+ }
+ }
+
+ if (num != 3)
+ return false;
+
+ CSSParserValue& op = *m_valueList->valueAt(1);
+
+ if (!isForwardSlashOperator(op))
+ return false;
+
+ ValueWithCalculation lvalueWithCalculation(*m_valueList->valueAt(0));
+ ValueWithCalculation rvalueWithCalculation(*m_valueList->valueAt(2));
+ if (!validateUnit(lvalueWithCalculation, FNumber | FNonNeg) || !validateUnit(rvalueWithCalculation, FNumber | FNonNeg))
+ return false;
+
+ // FIXME: This doesn't handle calculated values.
+ if (!lvalueWithCalculation.value().fValue || !rvalueWithCalculation.value().fValue)
+ return false;
+
+ addProperty(CSSPropertyWebkitAspectRatio, CSSAspectRatioValue::create(narrowPrecisionToFloat(lvalueWithCalculation.value().fValue), narrowPrecisionToFloat(rvalueWithCalculation.value().fValue)), important);
+
+ return true;
+}
+
+bool CSSParser::parseCounter(CSSPropertyID propId, int defaultValue, bool important)
+{
+ enum { ID, VAL } state = ID;
+
+ auto list = CSSValueList::createCommaSeparated();
+ RefPtr<CSSPrimitiveValue> counterName;
+
+ while (true) {
+ CSSParserValue* value = m_valueList->current();
+ switch (state) {
+ case ID:
+ if (value && value->unit == CSSPrimitiveValue::CSS_IDENT) {
+ counterName = createPrimitiveStringValue(*value);
+ state = VAL;
+ m_valueList->next();
+ continue;
+ }
+ break;
+ case VAL: {
+ int i = defaultValue;
+ if (value && value->unit == CSSPrimitiveValue::CSS_NUMBER) {
+ i = clampToInteger(value->fValue);
+ m_valueList->next();
+ }
+
+ list->append(createPrimitiveValuePair(WTFMove(counterName),
+ CSSValuePool::singleton().createValue(i, CSSPrimitiveValue::CSS_NUMBER)));
+ state = ID;
+ continue;
+ }
+ }
+ break;
+ }
+
+ if (list->length() > 0) {
+ addProperty(propId, WTFMove(list), important);
+ return true;
+ }
+
+ return false;
+}
+
+// This should go away once we drop support for -webkit-gradient
+static RefPtr<CSSPrimitiveValue> parseDeprecatedGradientPoint(CSSParserValue& value, bool horizontal)
+{
+ RefPtr<CSSPrimitiveValue> result;
+ if (value.unit == CSSPrimitiveValue::CSS_IDENT) {
+ if ((equalLettersIgnoringASCIICase(value, "left") && horizontal)
+ || (equalLettersIgnoringASCIICase(value, "top") && !horizontal))
+ result = CSSValuePool::singleton().createValue(0., CSSPrimitiveValue::CSS_PERCENTAGE);
+ else if ((equalLettersIgnoringASCIICase(value, "right") && horizontal)
+ || (equalLettersIgnoringASCIICase(value, "bottom") && !horizontal))
+ result = CSSValuePool::singleton().createValue(100., CSSPrimitiveValue::CSS_PERCENTAGE);
+ else if (equalLettersIgnoringASCIICase(value, "center"))
+ result = CSSValuePool::singleton().createValue(50., CSSPrimitiveValue::CSS_PERCENTAGE);
+ } else if (value.unit == CSSPrimitiveValue::CSS_NUMBER || value.unit == CSSPrimitiveValue::CSS_PERCENTAGE)
+ result = CSSValuePool::singleton().createValue(value.fValue, static_cast<CSSPrimitiveValue::UnitTypes>(value.unit));
+ return result;
+}
+
+static bool parseDeprecatedGradientColorStop(CSSParser& parser, CSSParserValue& value, CSSGradientColorStop& stop)
+{
+ if (value.unit != CSSParserValue::Function)
+ return false;
+
+ if (!equalLettersIgnoringASCIICase(value.function->name, "from(")
+ && !equalLettersIgnoringASCIICase(value.function->name, "to(")
+ && !equalLettersIgnoringASCIICase(value.function->name, "color-stop("))
+ return false;
+
+ CSSParserValueList* args = value.function->args.get();
+ if (!args)
+ return false;
+
+ if (equalLettersIgnoringASCIICase(value.function->name, "from(")
+ || equalLettersIgnoringASCIICase(value.function->name, "to(")) {
+ // The "from" and "to" stops expect 1 argument.
+ if (args->size() != 1)
+ return false;
+
+ if (equalLettersIgnoringASCIICase(value.function->name, "from("))
+ stop.m_position = CSSValuePool::singleton().createValue(0, CSSPrimitiveValue::CSS_NUMBER);
+ else
+ stop.m_position = CSSValuePool::singleton().createValue(1, CSSPrimitiveValue::CSS_NUMBER);
+
+ CSSValueID id = args->current()->id;
+ if (id == CSSValueWebkitText || CSSParser::isValidSystemColorValue(id) || id == CSSValueMenu)
+ stop.m_color = CSSValuePool::singleton().createIdentifierValue(id);
+ else
+ stop.m_color = parser.parseColor(args->current());
+ if (!stop.m_color)
+ return false;
+ }
+
+ // The "color-stop" function expects 3 arguments.
+ if (equalLettersIgnoringASCIICase(value.function->name, "color-stop(")) {
+ if (args->size() != 3)
+ return false;
+
+ CSSParserValue* stopArg = args->current();
+ if (stopArg->unit == CSSPrimitiveValue::CSS_PERCENTAGE)
+ stop.m_position = CSSValuePool::singleton().createValue(stopArg->fValue / 100, CSSPrimitiveValue::CSS_NUMBER);
+ else if (stopArg->unit == CSSPrimitiveValue::CSS_NUMBER)
+ stop.m_position = CSSValuePool::singleton().createValue(stopArg->fValue, CSSPrimitiveValue::CSS_NUMBER);
+ else
+ return false;
+
+ stopArg = args->next();
+ if (stopArg->unit != CSSParserValue::Operator || stopArg->iValue != ',')
+ return false;
+
+ stopArg = args->next();
+ CSSValueID id = stopArg->id;
+ if (id == CSSValueWebkitText || CSSParser::isValidSystemColorValue(id) || id == CSSValueMenu)
+ stop.m_color = CSSValuePool::singleton().createIdentifierValue(id);
+ else
+ stop.m_color = parser.parseColor(stopArg);
+ if (!stop.m_color)
+ return false;
+ }
+
+ return true;
+}
+
+bool CSSParser::parseDeprecatedGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient)
+{
+ // Walk the arguments.
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args || args->size() == 0)
+ return false;
+
+ // The first argument is the gradient type. It is an identifier.
+ CSSGradientType gradientType;
+ CSSParserValue* argument = args->current();
+ if (!argument || argument->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+ if (equalLettersIgnoringASCIICase(*argument, "linear"))
+ gradientType = CSSDeprecatedLinearGradient;
+ else if (equalLettersIgnoringASCIICase(*argument, "radial"))
+ gradientType = CSSDeprecatedRadialGradient;
+ else
+ return false;
+
+ RefPtr<CSSGradientValue> result;
+ switch (gradientType) {
+ case CSSDeprecatedLinearGradient:
+ result = CSSLinearGradientValue::create(NonRepeating, gradientType);
+ break;
+ case CSSDeprecatedRadialGradient:
+ result = CSSRadialGradientValue::create(NonRepeating, gradientType);
+ break;
+ default:
+ // The rest of the gradient types shouldn't appear here.
+ ASSERT_NOT_REACHED();
+ }
+
+ // Comma.
+ argument = args->next();
+ if (!isComma(argument))
+ return false;
+
+ // Next comes the starting point for the gradient as an x y pair. There is no
+ // comma between the x and the y values.
+ // First X. It can be left, right, number or percent.
+ argument = args->next();
+ if (!argument)
+ return false;
+ RefPtr<CSSPrimitiveValue> point = parseDeprecatedGradientPoint(*argument, true);
+ if (!point)
+ return false;
+ result->setFirstX(point.releaseNonNull());
+
+ // First Y. It can be top, bottom, number or percent.
+ argument = args->next();
+ if (!argument)
+ return false;
+ point = parseDeprecatedGradientPoint(*argument, false);
+ if (!point)
+ return false;
+ result->setFirstY(point.releaseNonNull());
+
+ // Comma after the first point.
+ argument = args->next();
+ if (!isComma(argument))
+ return false;
+
+ // For radial gradients only, we now expect a numeric radius.
+ if (gradientType == CSSDeprecatedRadialGradient) {
+ argument = args->next();
+ // FIXME: This does not handle calculation values.
+ if (!argument || argument->unit != CSSPrimitiveValue::CSS_NUMBER)
+ return false;
+ ValueWithCalculation argumentWithCalculation(*argument);
+ downcast<CSSRadialGradientValue>(*result).setFirstRadius(createPrimitiveNumericValue(argumentWithCalculation));
+
+ // Comma after the first radius.
+ argument = args->next();
+ if (!isComma(argument))
+ return false;
+ }
+
+ // Next is the ending point for the gradient as an x, y pair.
+ // Second X. It can be left, right, number or percent.
+ argument = args->next();
+ if (!argument)
+ return false;
+ point = parseDeprecatedGradientPoint(*argument, true);
+ if (!point)
+ return false;
+ result->setSecondX(point.releaseNonNull());
+
+ // Second Y. It can be top, bottom, number or percent.
+ argument = args->next();
+ if (!argument)
+ return false;
+ point = parseDeprecatedGradientPoint(*argument, false);
+ if (!point)
+ return false;
+ result->setSecondY(point.releaseNonNull());
+
+ // For radial gradients only, we now expect the second radius.
+ if (gradientType == CSSDeprecatedRadialGradient) {
+ // Comma after the second point.
+ argument = args->next();
+ if (!isComma(argument))
+ return false;
+
+ argument = args->next();
+ // FIXME: This does not handle calculation values.
+ if (!argument || argument->unit != CSSPrimitiveValue::CSS_NUMBER)
+ return false;
+ ValueWithCalculation argumentWithCalculation(*argument);
+ downcast<CSSRadialGradientValue>(*result).setSecondRadius(createPrimitiveNumericValue(argumentWithCalculation));
+ }
+
+ // We now will accept any number of stops (0 or more).
+ argument = args->next();
+ while (argument) {
+ // Look for the comma before the next stop.
+ if (!isComma(argument))
+ return false;
+
+ // Now examine the stop itself.
+ argument = args->next();
+ if (!argument)
+ return false;
+
+ // The function name needs to be one of "from", "to", or "color-stop."
+ CSSGradientColorStop stop;
+ if (!parseDeprecatedGradientColorStop(*this, *argument, stop))
+ return false;
+ result->addStop(stop);
+
+ // Advance
+ argument = args->next();
+ }
+
+ gradient = WTFMove(result);
+ return true;
+}
+
+static RefPtr<CSSPrimitiveValue> valueFromSideKeyword(CSSParserValue& value, bool& isHorizontal)
+{
+ if (value.unit != CSSPrimitiveValue::CSS_IDENT)
+ return nullptr;
+
+ switch (value.id) {
+ case CSSValueLeft:
+ case CSSValueRight:
+ isHorizontal = true;
+ break;
+ case CSSValueTop:
+ case CSSValueBottom:
+ isHorizontal = false;
+ break;
+ default:
+ return nullptr;
+ }
+ return CSSValuePool::singleton().createIdentifierValue(value.id);
+}
+
+static RefPtr<CSSPrimitiveValue> parseGradientColorOrKeyword(CSSParser& parser, CSSParserValue& value)
+{
+ CSSValueID id = value.id;
+ if (id == CSSValueWebkitText || CSSParser::isValidSystemColorValue(id) || id == CSSValueMenu || id == CSSValueCurrentcolor)
+ return CSSValuePool::singleton().createIdentifierValue(id);
+
+ return parser.parseColor(&value);
+}
+
+bool CSSParser::parseDeprecatedLinearGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
+{
+ auto result = CSSLinearGradientValue::create(repeating, CSSPrefixedLinearGradient);
+
+ // Walk the arguments.
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args || !args->size())
+ return false;
+
+ CSSParserValue* argument = args->current();
+ if (!argument)
+ return false;
+ ValueWithCalculation argumentWithCalculation(*argument);
+
+ bool expectComma = false;
+ // Look for angle.
+ if (validateUnit(argumentWithCalculation, FAngle, CSSStrictMode)) {
+ result->setAngle(createPrimitiveNumericValue(argumentWithCalculation));
+
+ args->next();
+ expectComma = true;
+ } else {
+ // Look one or two optional keywords that indicate a side or corner.
+ RefPtr<CSSPrimitiveValue> startX, startY;
+ bool isHorizontal = false;
+ if (RefPtr<CSSPrimitiveValue> location = valueFromSideKeyword(*argument, isHorizontal)) {
+ if (isHorizontal)
+ startX = WTFMove(location);
+ else
+ startY = WTFMove(location);
+
+ if ((argument = args->next())) {
+ if ((location = valueFromSideKeyword(*argument, isHorizontal))) {
+ if (isHorizontal) {
+ if (startX)
+ return false;
+ startX = WTFMove(location);
+ } else {
+ if (startY)
+ return false;
+ startY = WTFMove(location);
+ }
+
+ args->next();
+ }
+ }
+
+ expectComma = true;
+ }
+
+ if (!startX && !startY)
+ startY = CSSValuePool::singleton().createIdentifierValue(CSSValueTop);
+
+ result->setFirstX(WTFMove(startX));
+ result->setFirstY(WTFMove(startY));
+ }
+
+ if (!parseGradientColorStops(*args, result, expectComma))
+ return false;
+
+ if (!result->stopCount())
+ return false;
+
+ gradient = WTFMove(result);
+ return true;
+}
+
+bool CSSParser::parseDeprecatedRadialGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
+{
+ auto result = CSSRadialGradientValue::create(repeating, CSSPrefixedRadialGradient);
+
+ // Walk the arguments.
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args || !args->size())
+ return false;
+
+ CSSParserValue* argument = args->current();
+ if (!argument)
+ return false;
+
+ bool expectComma = false;
+
+ // Optional background-position
+ RefPtr<CSSPrimitiveValue> centerX;
+ RefPtr<CSSPrimitiveValue> centerY;
+ // parse2ValuesFillPosition advances the args next pointer.
+ parse2ValuesFillPosition(*args, centerX, centerY);
+ argument = args->current();
+ if (!argument)
+ return false;
+
+ if (centerX || centerY) {
+ // Comma
+ if (!isComma(argument))
+ return false;
+
+ argument = args->next();
+ if (!argument)
+ return false;
+ }
+
+ result->setFirstX(centerX.copyRef());
+ result->setSecondX(WTFMove(centerX));
+ // CSS3 radial gradients always share the same start and end point.
+ result->setFirstY(centerY.copyRef());
+ result->setSecondY(WTFMove(centerY));
+
+ RefPtr<CSSPrimitiveValue> shapeValue;
+ RefPtr<CSSPrimitiveValue> sizeValue;
+
+ // Optional shape and/or size in any order.
+ for (int i = 0; i < 2; ++i) {
+ if (argument->unit != CSSPrimitiveValue::CSS_IDENT)
+ break;
+
+ bool foundValue = false;
+ switch (argument->id) {
+ case CSSValueCircle:
+ case CSSValueEllipse:
+ shapeValue = CSSValuePool::singleton().createIdentifierValue(argument->id);
+ foundValue = true;
+ break;
+ case CSSValueClosestSide:
+ case CSSValueClosestCorner:
+ case CSSValueFarthestSide:
+ case CSSValueFarthestCorner:
+ case CSSValueContain:
+ case CSSValueCover:
+ sizeValue = CSSValuePool::singleton().createIdentifierValue(argument->id);
+ foundValue = true;
+ break;
+ default:
+ break;
+ }
+
+ if (foundValue) {
+ argument = args->next();
+ if (!argument)
+ return false;
+
+ expectComma = true;
+ }
+ }
+
+ result->setShape(shapeValue.copyRef());
+ result->setSizingBehavior(sizeValue.copyRef());
+
+ // Or, two lengths or percentages
+ RefPtr<CSSPrimitiveValue> horizontalSize;
+ RefPtr<CSSPrimitiveValue> verticalSize;
+
+ if (!shapeValue && !sizeValue) {
+ ValueWithCalculation hSizeWithCalculation(*argument);
+ if (validateUnit(hSizeWithCalculation, FLength | FPercent)) {
+ horizontalSize = createPrimitiveNumericValue(hSizeWithCalculation);
+ argument = args->next();
+ if (!argument)
+ return false;
+
+ expectComma = true;
+ }
+
+ ValueWithCalculation vSizeWithCalculation(*argument);
+ if (validateUnit(vSizeWithCalculation, FLength | FPercent)) {
+ verticalSize = createPrimitiveNumericValue(vSizeWithCalculation);
+
+ argument = args->next();
+ if (!argument)
+ return false;
+ expectComma = true;
+ }
+ }
+
+ // Must have neither or both.
+ if (!horizontalSize != !verticalSize)
+ return false;
+
+ result->setEndHorizontalSize(WTFMove(horizontalSize));
+ result->setEndVerticalSize(WTFMove(verticalSize));
+
+ if (!parseGradientColorStops(*args, result, expectComma))
+ return false;
+
+ gradient = WTFMove(result);
+ return true;
+}
+
+bool CSSParser::parseLinearGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
+{
+ auto result = CSSLinearGradientValue::create(repeating, CSSLinearGradient);
+
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args || !args->size())
+ return false;
+
+ if (!args->current())
+ return false;
+
+ ValueWithCalculation firstArgumentWithCalculation(*args->current());
+
+ bool expectComma = false;
+ // Look for angle.
+ if (validateUnit(firstArgumentWithCalculation, FAngle, CSSStrictMode)) {
+ result->setAngle(createPrimitiveNumericValue(firstArgumentWithCalculation));
+
+ args->next();
+ expectComma = true;
+ } else if (firstArgumentWithCalculation.value().unit == CSSPrimitiveValue::CSS_IDENT && equalLettersIgnoringASCIICase(firstArgumentWithCalculation, "to")) {
+ // to [ [left | right] || [top | bottom] ]
+ CSSParserValue* nextArgument = args->next();
+ if (!nextArgument)
+ return false;
+
+ bool isHorizontal = false;
+ RefPtr<CSSPrimitiveValue> location = valueFromSideKeyword(*nextArgument, isHorizontal);
+ if (!location)
+ return false;
+
+ RefPtr<CSSPrimitiveValue> endX, endY;
+ if (isHorizontal)
+ endX = WTFMove(location);
+ else
+ endY = WTFMove(location);
+
+ nextArgument = args->next();
+ if (!nextArgument)
+ return false;
+
+ location = valueFromSideKeyword(*nextArgument, isHorizontal);
+ if (location) {
+ if (isHorizontal) {
+ if (endX)
+ return false;
+ endX = WTFMove(location);
+ } else {
+ if (endY)
+ return false;
+ endY = WTFMove(location);
+ }
+
+ args->next();
+ }
+
+ expectComma = true;
+ result->setFirstX(WTFMove(endX));
+ result->setFirstY(WTFMove(endY));
+ }
+
+ if (!parseGradientColorStops(*args, result, expectComma))
+ return false;
+
+ if (!result->stopCount())
+ return false;
+
+ gradient = WTFMove(result);
+ return true;
+}
+
+bool CSSParser::parseRadialGradient(CSSParserValueList& valueList, RefPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
+{
+ auto result = CSSRadialGradientValue::create(repeating, CSSRadialGradient);
+
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args || !args->size())
+ return false;
+
+ CSSParserValue* argument = args->current();
+ if (!argument)
+ return false;
+
+ bool expectComma = false;
+
+ RefPtr<CSSPrimitiveValue> shapeValue;
+ RefPtr<CSSPrimitiveValue> sizeValue;
+ RefPtr<CSSPrimitiveValue> horizontalSize;
+ RefPtr<CSSPrimitiveValue> verticalSize;
+
+ // First part of grammar, the size/shape clause:
+ // [ circle || <length> ] |
+ // [ ellipse || [ <length> | <percentage> ]{2} ] |
+ // [ [ circle | ellipse] || <size-keyword> ]
+ for (int i = 0; i < 3; ++i) {
+ ValueWithCalculation argumentWithCalculation(*argument);
+ if (argument->unit == CSSPrimitiveValue::CSS_IDENT) {
+ bool badIdent = false;
+ switch (argument->id) {
+ case CSSValueCircle:
+ case CSSValueEllipse:
+ if (shapeValue)
+ return false;
+ shapeValue = CSSValuePool::singleton().createIdentifierValue(argument->id);
+ break;
+ case CSSValueClosestSide:
+ case CSSValueClosestCorner:
+ case CSSValueFarthestSide:
+ case CSSValueFarthestCorner:
+ if (sizeValue || horizontalSize)
+ return false;
+ sizeValue = CSSValuePool::singleton().createIdentifierValue(argument->id);
+ break;
+ default:
+ badIdent = true;
+ }
+
+ if (badIdent)
+ break;
+
+ argument = args->next();
+ if (!argument)
+ return false;
+ } else if (validateUnit(argumentWithCalculation, FLength | FPercent)) {
+
+ if (sizeValue || horizontalSize)
+ return false;
+ horizontalSize = createPrimitiveNumericValue(argumentWithCalculation);
+
+ argument = args->next();
+ if (!argument)
+ return false;
+
+ ValueWithCalculation vSizeWithCalculation(*argument);
+ if (validateUnit(vSizeWithCalculation, FLength | FPercent)) {
+ verticalSize = createPrimitiveNumericValue(vSizeWithCalculation);
+ ++i;
+ argument = args->next();
+ if (!argument)
+ return false;
+ }
+ } else
+ break;
+ }
+
+ // You can specify size as a keyword or a length/percentage, not both.
+ if (sizeValue && horizontalSize)
+ return false;
+ // Circles must have 0 or 1 lengths.
+ if (shapeValue && shapeValue->getValueID() == CSSValueCircle && verticalSize)
+ return false;
+ // Ellipses must have 0 or 2 length/percentages.
+ if (shapeValue && shapeValue->getValueID() == CSSValueEllipse && horizontalSize && !verticalSize)
+ return false;
+ // If there's only one size, it must be a length.
+ if (!verticalSize && horizontalSize && horizontalSize->isPercentage())
+ return false;
+
+ result->setShape(shapeValue.copyRef());
+ result->setSizingBehavior(sizeValue.copyRef());
+ result->setEndHorizontalSize(horizontalSize.copyRef());
+ result->setEndVerticalSize(verticalSize.copyRef());
+
+ // Second part of grammar, the center-position clause:
+ // at <position>
+ RefPtr<CSSPrimitiveValue> centerX;
+ RefPtr<CSSPrimitiveValue> centerY;
+ if (argument->unit == CSSPrimitiveValue::CSS_IDENT && equalLettersIgnoringASCIICase(*argument, "at")) {
+ argument = args->next();
+ if (!argument)
+ return false;
+
+ parseFillPosition(*args, centerX, centerY);
+ if (!(centerX && centerY))
+ return false;
+
+ argument = args->current();
+ if (!argument)
+ return false;
+
+ result->setFirstX(centerX.copyRef());
+ result->setFirstY(centerY.copyRef());
+ // Right now, CSS radial gradients have the same start and end centers.
+ result->setSecondX(centerX.copyRef());
+ result->setSecondY(centerY.copyRef());
+ }
+
+ if (shapeValue || sizeValue || horizontalSize || centerX || centerY)
+ expectComma = true;
+
+ if (!parseGradientColorStops(*args, result, expectComma))
+ return false;
+
+ gradient = WTFMove(result);
+ return true;
+}
+
+bool CSSParser::parseGradientColorStops(CSSParserValueList& valueList, CSSGradientValue& gradient, bool expectComma)
+{
+ CSSParserValue* value = valueList.current();
+ bool previousStopWasMidpoint = true;
+
+ // Now look for color stops.
+ while (value) {
+ // Look for the comma before the next stop.
+ if (expectComma) {
+ if (!isComma(value))
+ return false;
+
+ value = valueList.next();
+ if (!value)
+ return false;
+ }
+
+ // <color-stop> = <color> [ <percentage> | <length> ]?
+ CSSGradientColorStop stop;
+ stop.m_color = parseGradientColorOrKeyword(*this, *value);
+ if (!stop.m_color) {
+ if (previousStopWasMidpoint) // 2 midpoints in a row is not allowed. This also catches starting with a midpoint.
+ return false;
+
+ stop.isMidpoint = true;
+ } else
+ value = valueList.next();
+
+ previousStopWasMidpoint = stop.isMidpoint;
+
+ if (value) {
+ ValueWithCalculation valueWithCalculation(*value);
+ if (validateUnit(valueWithCalculation, FLength | FPercent)) {
+ stop.m_position = createPrimitiveNumericValue(valueWithCalculation);
+ value = valueList.next();
+ } else if (stop.isMidpoint)
+ return false;
+ }
+
+ gradient.addStop(stop);
+ expectComma = true;
+ }
+
+ // We can't end on a midpoint.
+ if (previousStopWasMidpoint)
+ return false;
+
+ // Must have 2 or more stops to be valid.
+ return gradient.stopCount() >= 2;
+}
+
+bool CSSParser::isGeneratedImageValue(CSSParserValue& value) const
+{
+ if (value.unit != CSSParserValue::Function)
+ return false;
+
+ return equalLettersIgnoringASCIICase(value.function->name, "-webkit-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-linear-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "linear-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-repeating-linear-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "repeating-linear-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-radial-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "radial-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-repeating-radial-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "repeating-radial-gradient(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-canvas(")
+ || equalLettersIgnoringASCIICase(value.function->name, "cross-fade(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-cross-fade(")
+ || equalLettersIgnoringASCIICase(value.function->name, "filter(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-filter(")
+ || equalLettersIgnoringASCIICase(value.function->name, "-webkit-named-image(");
+}
+
+bool CSSParser::parseGeneratedImage(CSSParserValueList& valueList, RefPtr<CSSValue>& value)
+{
+ CSSParserValue& parserValue = *valueList.current();
+
+ if (parserValue.unit != CSSParserValue::Function)
+ return false;
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-gradient("))
+ return parseDeprecatedGradient(valueList, value);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-linear-gradient("))
+ return parseDeprecatedLinearGradient(valueList, value, NonRepeating);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "linear-gradient("))
+ return parseLinearGradient(valueList, value, NonRepeating);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-repeating-linear-gradient("))
+ return parseDeprecatedLinearGradient(valueList, value, Repeating);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "repeating-linear-gradient("))
+ return parseLinearGradient(valueList, value, Repeating);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-radial-gradient("))
+ return parseDeprecatedRadialGradient(valueList, value, NonRepeating);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "radial-gradient("))
+ return parseRadialGradient(valueList, value, NonRepeating);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-repeating-radial-gradient("))
+ return parseDeprecatedRadialGradient(valueList, value, Repeating);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "repeating-radial-gradient("))
+ return parseRadialGradient(valueList, value, Repeating);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-canvas("))
+ return parseCanvas(valueList, value);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-cross-fade("))
+ return parseCrossfade(valueList, value, true);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "cross-fade("))
+ return parseCrossfade(valueList, value, false);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "filter(") || equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-filter("))
+ return parseFilterImage(valueList, value);
+
+ if (equalLettersIgnoringASCIICase(parserValue.function->name, "-webkit-named-image("))
+ return parseNamedImage(valueList, value);
+
+ return false;
+}
+
+bool CSSParser::parseFilterImage(CSSParserValueList& valueList, RefPtr<CSSValue>& filter)
+{
+ // Walk the arguments.
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args)
+ return false;
+ CSSParserValue* value = args->current();
+ if (!value)
+ return false;
+
+ // The first argument is the image. It is a fill image.
+ RefPtr<CSSValue> imageValue;
+ if (!parseFillImage(*args, imageValue)) {
+ if (value->unit == CSSPrimitiveValue::CSS_STRING)
+ imageValue = CSSImageValue::create(completeURL(value->string));
+ else
+ return false;
+ }
+
+ value = args->next();
+
+ // Skip a comma
+ if (!isComma(value))
+ return false;
+ value = args->next();
+
+ RefPtr<CSSValueList> filterValue;
+ if (!value || !parseFilter(*args, filterValue))
+ return false;
+ value = args->next();
+
+ filter = CSSFilterImageValue::create(imageValue.releaseNonNull(), filterValue.releaseNonNull());
+
+ return true;
+}
+
+bool CSSParser::parseCrossfade(CSSParserValueList& valueList, RefPtr<CSSValue>& crossfade, bool prefixed)
+{
+ // Walk the arguments.
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args || args->size() != 5)
+ return false;
+
+ CSSParserValue* argument = args->current();
+
+ // The first argument is the "from" image. It is a fill image.
+ RefPtr<CSSValue> fromImageValue;
+ if (!argument || !parseFillImage(*args, fromImageValue))
+ return false;
+ argument = args->next();
+
+ // Skip a comma
+ if (!isComma(argument))
+ return false;
+ argument = args->next();
+
+ // The second argument is the "to" image. It is a fill image.
+ RefPtr<CSSValue> toImageValue;
+ if (!argument || !parseFillImage(*args, toImageValue))
+ return false;
+ argument = args->next();
+
+ // Skip a comma
+ if (!isComma(argument))
+ return false;
+ argument = args->next();
+
+ // The third argument is the crossfade value. It is a percentage or a fractional number.
+ if (!argument)
+ return false;
+
+ RefPtr<CSSPrimitiveValue> percentage;
+ if (argument->unit == CSSPrimitiveValue::CSS_PERCENTAGE)
+ percentage = CSSValuePool::singleton().createValue(clampTo<double>(argument->fValue / 100, 0, 1), CSSPrimitiveValue::CSS_NUMBER);
+ else if (argument->unit == CSSPrimitiveValue::CSS_NUMBER)
+ percentage = CSSValuePool::singleton().createValue(clampTo<double>(argument->fValue, 0, 1), CSSPrimitiveValue::CSS_NUMBER);
+ else
+ return false;
+
+ crossfade = CSSCrossfadeValue::create(fromImageValue.releaseNonNull(), toImageValue.releaseNonNull(), percentage.releaseNonNull(), prefixed);
+
+ return true;
+}
+
+bool CSSParser::parseCanvas(CSSParserValueList& valueList, RefPtr<CSSValue>& canvas)
+{
+ // Walk the arguments.
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args || args->size() != 1)
+ return false;
+
+ // The first argument is the canvas name. It is an identifier.
+ CSSParserValue* value = args->current();
+ if (!value || value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ canvas = CSSCanvasValue::create(value->string);
+ return true;
+}
+
+bool CSSParser::parseNamedImage(CSSParserValueList& valueList, RefPtr<CSSValue>& namedImage)
+{
+ CSSParserValueList* args = valueList.current()->function->args.get();
+ if (!args || args->size() != 1)
+ return false;
+
+ // The only argument is the image name.
+ CSSParserValue* value = args->current();
+ if (!value || value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ namedImage = CSSNamedImageValue::create(value->string);
+ return true;
+}
+
+#if ENABLE(CSS_IMAGE_RESOLUTION)
+RefPtr<CSSValueList> CSSParser::parseImageResolution()
+{
+ auto list = CSSValueList::createSpaceSeparated();
+ bool haveResolution = false;
+ bool haveFromImage = false;
+ bool haveSnap = false;
+
+ CSSParserValue* value = m_valueList->current();
+ while (value) {
+ ValueWithCalculation valueWithCalculation(*value);
+ if (!haveFromImage && value->id == CSSValueFromImage) {
+ list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
+ haveFromImage = true;
+ } else if (!haveSnap && value->id == CSSValueSnap) {
+ list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
+ haveSnap = true;
+ } else if (!haveResolution && validateUnit(valueWithCalculation, FResolution | FNonNeg) && value->fValue > 0) {
+ list->append(createPrimitiveNumericValue(valueWithCalculation));
+ haveResolution = true;
+ } else
+ return nullptr;
+ value = m_valueList->next();
+ }
+ if (!list->length())
+ return nullptr;
+ if (!haveFromImage && !haveResolution)
+ return nullptr;
+ return WTFMove(list);
+}
+#endif
+
+RefPtr<CSSImageSetValue> CSSParser::parseImageSet()
+{
+ CSSParserValue& value = *m_valueList->current();
+ ASSERT(value.unit == CSSParserValue::Function);
+
+ CSSParserValueList* functionArgs = value.function->args.get();
+ if (!functionArgs || !functionArgs->size() || !functionArgs->current())
+ return nullptr;
+
+ auto imageSet = CSSImageSetValue::create();
+ CSSParserValue* arg = functionArgs->current();
+ while (arg) {
+ if (arg->unit != CSSPrimitiveValue::CSS_URI)
+ return nullptr;
+
+ imageSet->append(CSSImageValue::create(completeURL(arg->string)));
+ arg = functionArgs->next();
+ if (!arg || arg->unit != CSSPrimitiveValue::CSS_DIMENSION)
+ return nullptr;
+
+ double imageScaleFactor = 0;
+ const String& string = arg->string;
+ unsigned length = string.length();
+ if (!length)
+ return nullptr;
+ if (string.is8Bit()) {
+ const LChar* start = string.characters8();
+ parseDouble(start, start + length, 'x', imageScaleFactor);
+ } else {
+ const UChar* start = string.characters16();
+ parseDouble(start, start + length, 'x', imageScaleFactor);
+ }
+ if (imageScaleFactor <= 0)
+ return nullptr;
+ imageSet->append(CSSValuePool::singleton().createValue(imageScaleFactor, CSSPrimitiveValue::CSS_NUMBER));
+
+ // If there are no more arguments, we're done.
+ arg = functionArgs->next();
+ if (!arg)
+ break;
+
+ // If there are more arguments, they should be after a comma.
+ if (!isComma(arg))
+ return nullptr;
+
+ // Skip the comma and move on to the next argument.
+ arg = functionArgs->next();
+ }
+
+ return WTFMove(imageSet);
+}
+
+class TransformOperationInfo {
+public:
+ TransformOperationInfo(const CSSParserString& name)
+ : m_type(WebKitCSSTransformValue::UnknownTransformOperation)
+ , m_argCount(1)
+ , m_allowSingleArgument(false)
+ , m_unit(CSSParser::FUnknown)
+ {
+ const UChar* characters;
+ unsigned nameLength = name.length();
+
+ const unsigned longestNameLength = 12;
+ UChar characterBuffer[longestNameLength];
+ if (name.is8Bit()) {
+ unsigned length = std::min(longestNameLength, nameLength);
+ const LChar* characters8 = name.characters8();
+ for (unsigned i = 0; i < length; ++i)
+ characterBuffer[i] = characters8[i];
+ characters = characterBuffer;
+ } else
+ characters = name.characters16();
+
+ switch (nameLength) {
+ case 5:
+ // Valid name: skew(.
+ if (((characters[0] == 's') || (characters[0] == 'S'))
+ & ((characters[1] == 'k') || (characters[1] == 'K'))
+ & ((characters[2] == 'e') || (characters[2] == 'E'))
+ & ((characters[3] == 'w') || (characters[3] == 'W'))
+ & (characters[4] == '(')) {
+ m_unit = CSSParser::FAngle;
+ m_type = WebKitCSSTransformValue::SkewTransformOperation;
+ m_allowSingleArgument = true;
+ m_argCount = 3;
+ }
+ break;
+ case 6:
+ // Valid names: skewx(, skewy(, scale(.
+ if ((characters[1] == 'c') || (characters[1] == 'C')) {
+ if (((characters[0] == 's') || (characters[0] == 'S'))
+ & ((characters[2] == 'a') || (characters[2] == 'A'))
+ & ((characters[3] == 'l') || (characters[3] == 'L'))
+ & ((characters[4] == 'e') || (characters[4] == 'E'))
+ & (characters[5] == '(')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::ScaleTransformOperation;
+ m_allowSingleArgument = true;
+ m_argCount = 3;
+ }
+ } else if (((characters[0] == 's') || (characters[0] == 'S'))
+ & ((characters[1] == 'k') || (characters[1] == 'K'))
+ & ((characters[2] == 'e') || (characters[2] == 'E'))
+ & ((characters[3] == 'w') || (characters[3] == 'W'))
+ & (characters[5] == '(')) {
+ if ((characters[4] == 'x') || (characters[4] == 'X')) {
+ m_unit = CSSParser::FAngle;
+ m_type = WebKitCSSTransformValue::SkewXTransformOperation;
+ } else if ((characters[4] == 'y') || (characters[4] == 'Y')) {
+ m_unit = CSSParser::FAngle;
+ m_type = WebKitCSSTransformValue::SkewYTransformOperation;
+ }
+ }
+ break;
+ case 7:
+ // Valid names: matrix(, rotate(, scalex(, scaley(, scalez(.
+ if ((characters[0] == 'm') || (characters[0] == 'M')) {
+ if (((characters[1] == 'a') || (characters[1] == 'A'))
+ & ((characters[2] == 't') || (characters[2] == 'T'))
+ & ((characters[3] == 'r') || (characters[3] == 'R'))
+ & ((characters[4] == 'i') || (characters[4] == 'I'))
+ & ((characters[5] == 'x') || (characters[5] == 'X'))
+ & (characters[6] == '(')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::MatrixTransformOperation;
+ m_argCount = 11;
+ }
+ } else if ((characters[0] == 'r') || (characters[0] == 'R')) {
+ if (((characters[1] == 'o') || (characters[1] == 'O'))
+ & ((characters[2] == 't') || (characters[2] == 'T'))
+ & ((characters[3] == 'a') || (characters[3] == 'A'))
+ & ((characters[4] == 't') || (characters[4] == 'T'))
+ & ((characters[5] == 'e') || (characters[5] == 'E'))
+ & (characters[6] == '(')) {
+ m_unit = CSSParser::FAngle;
+ m_type = WebKitCSSTransformValue::RotateTransformOperation;
+ }
+ } else if (((characters[0] == 's') || (characters[0] == 'S'))
+ & ((characters[1] == 'c') || (characters[1] == 'C'))
+ & ((characters[2] == 'a') || (characters[2] == 'A'))
+ & ((characters[3] == 'l') || (characters[3] == 'L'))
+ & ((characters[4] == 'e') || (characters[4] == 'E'))
+ & (characters[6] == '(')) {
+ if ((characters[5] == 'x') || (characters[5] == 'X')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::ScaleXTransformOperation;
+ } else if ((characters[5] == 'y') || (characters[5] == 'Y')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::ScaleYTransformOperation;
+ } else if ((characters[5] == 'z') || (characters[5] == 'Z')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::ScaleZTransformOperation;
+ }
+ }
+ break;
+ case 8:
+ // Valid names: rotatex(, rotatey(, rotatez(, scale3d(.
+ if ((characters[0] == 's') || (characters[0] == 'S')) {
+ if (((characters[1] == 'c') || (characters[1] == 'C'))
+ & ((characters[2] == 'a') || (characters[2] == 'A'))
+ & ((characters[3] == 'l') || (characters[3] == 'L'))
+ & ((characters[4] == 'e') || (characters[4] == 'E'))
+ & (characters[5] == '3')
+ & ((characters[6] == 'd') || (characters[6] == 'D'))
+ & (characters[7] == '(')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::Scale3DTransformOperation;
+ m_argCount = 5;
+ }
+ } else if (((characters[0] == 'r') || (characters[0] == 'R'))
+ & ((characters[1] == 'o') || (characters[1] == 'O'))
+ & ((characters[2] == 't') || (characters[2] == 'T'))
+ & ((characters[3] == 'a') || (characters[3] == 'A'))
+ & ((characters[4] == 't') || (characters[4] == 'T'))
+ & ((characters[5] == 'e') || (characters[5] == 'E'))
+ & (characters[7] == '(')) {
+ if ((characters[6] == 'x') || (characters[6] == 'X')) {
+ m_unit = CSSParser::FAngle;
+ m_type = WebKitCSSTransformValue::RotateXTransformOperation;
+ } else if ((characters[6] == 'y') || (characters[6] == 'Y')) {
+ m_unit = CSSParser::FAngle;
+ m_type = WebKitCSSTransformValue::RotateYTransformOperation;
+ } else if ((characters[6] == 'z') || (characters[6] == 'Z')) {
+ m_unit = CSSParser::FAngle;
+ m_type = WebKitCSSTransformValue::RotateZTransformOperation;
+ }
+ }
+ break;
+ case 9:
+ // Valid names: matrix3d(, rotate3d(.
+ if ((characters[0] == 'm') || (characters[0] == 'M')) {
+ if (((characters[1] == 'a') || (characters[1] == 'A'))
+ & ((characters[2] == 't') || (characters[2] == 'T'))
+ & ((characters[3] == 'r') || (characters[3] == 'R'))
+ & ((characters[4] == 'i') || (characters[4] == 'I'))
+ & ((characters[5] == 'x') || (characters[5] == 'X'))
+ & (characters[6] == '3')
+ & ((characters[7] == 'd') || (characters[7] == 'D'))
+ & (characters[8] == '(')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::Matrix3DTransformOperation;
+ m_argCount = 31;
+ }
+ } else if (((characters[0] == 'r') || (characters[0] == 'R'))
+ & ((characters[1] == 'o') || (characters[1] == 'O'))
+ & ((characters[2] == 't') || (characters[2] == 'T'))
+ & ((characters[3] == 'a') || (characters[3] == 'A'))
+ & ((characters[4] == 't') || (characters[4] == 'T'))
+ & ((characters[5] == 'e') || (characters[5] == 'E'))
+ & (characters[6] == '3')
+ & ((characters[7] == 'd') || (characters[7] == 'D'))
+ & (characters[8] == '(')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::Rotate3DTransformOperation;
+ m_argCount = 7;
+ }
+ break;
+ case 10:
+ // Valid name: translate(.
+ if (((characters[0] == 't') || (characters[0] == 'T'))
+ & ((characters[1] == 'r') || (characters[1] == 'R'))
+ & ((characters[2] == 'a') || (characters[2] == 'A'))
+ & ((characters[3] == 'n') || (characters[3] == 'N'))
+ & ((characters[4] == 's') || (characters[4] == 'S'))
+ & ((characters[5] == 'l') || (characters[5] == 'L'))
+ & ((characters[6] == 'a') || (characters[6] == 'A'))
+ & ((characters[7] == 't') || (characters[7] == 'T'))
+ & ((characters[8] == 'e') || (characters[8] == 'E'))
+ & (characters[9] == '(')) {
+ m_unit = CSSParser::FLength | CSSParser::FPercent;
+ m_type = WebKitCSSTransformValue::TranslateTransformOperation;
+ m_allowSingleArgument = true;
+ m_argCount = 3;
+ }
+ break;
+ case 11:
+ // Valid names: translatex(, translatey(, translatez(.
+ if (((characters[0] == 't') || (characters[0] == 'T'))
+ & ((characters[1] == 'r') || (characters[1] == 'R'))
+ & ((characters[2] == 'a') || (characters[2] == 'A'))
+ & ((characters[3] == 'n') || (characters[3] == 'N'))
+ & ((characters[4] == 's') || (characters[4] == 'S'))
+ & ((characters[5] == 'l') || (characters[5] == 'L'))
+ & ((characters[6] == 'a') || (characters[6] == 'A'))
+ & ((characters[7] == 't') || (characters[7] == 'T'))
+ & ((characters[8] == 'e') || (characters[8] == 'E'))
+ & (characters[10] == '(')) {
+ if ((characters[9] == 'x') || (characters[9] == 'X')) {
+ m_unit = CSSParser::FLength | CSSParser::FPercent;
+ m_type = WebKitCSSTransformValue::TranslateXTransformOperation;
+ } else if ((characters[9] == 'y') || (characters[9] == 'Y')) {
+ m_unit = CSSParser::FLength | CSSParser::FPercent;
+ m_type = WebKitCSSTransformValue::TranslateYTransformOperation;
+ } else if ((characters[9] == 'z') || (characters[9] == 'Z')) {
+ m_unit = CSSParser::FLength | CSSParser::FPercent;
+ m_type = WebKitCSSTransformValue::TranslateZTransformOperation;
+ }
+ }
+ break;
+ case 12:
+ // Valid names: perspective(, translate3d(.
+ if ((characters[0] == 'p') || (characters[0] == 'P')) {
+ if (((characters[1] == 'e') || (characters[1] == 'E'))
+ & ((characters[2] == 'r') || (characters[2] == 'R'))
+ & ((characters[3] == 's') || (characters[3] == 'S'))
+ & ((characters[4] == 'p') || (characters[4] == 'P'))
+ & ((characters[5] == 'e') || (characters[5] == 'E'))
+ & ((characters[6] == 'c') || (characters[6] == 'C'))
+ & ((characters[7] == 't') || (characters[7] == 'T'))
+ & ((characters[8] == 'i') || (characters[8] == 'I'))
+ & ((characters[9] == 'v') || (characters[9] == 'V'))
+ & ((characters[10] == 'e') || (characters[10] == 'E'))
+ & (characters[11] == '(')) {
+ m_unit = CSSParser::FNumber;
+ m_type = WebKitCSSTransformValue::PerspectiveTransformOperation;
+ }
+ } else if (((characters[0] == 't') || (characters[0] == 'T'))
+ & ((characters[1] == 'r') || (characters[1] == 'R'))
+ & ((characters[2] == 'a') || (characters[2] == 'A'))
+ & ((characters[3] == 'n') || (characters[3] == 'N'))
+ & ((characters[4] == 's') || (characters[4] == 'S'))
+ & ((characters[5] == 'l') || (characters[5] == 'L'))
+ & ((characters[6] == 'a') || (characters[6] == 'A'))
+ & ((characters[7] == 't') || (characters[7] == 'T'))
+ & ((characters[8] == 'e') || (characters[8] == 'E'))
+ & (characters[9] == '3')
+ & ((characters[10] == 'd') || (characters[10] == 'D'))
+ & (characters[11] == '(')) {
+ m_unit = CSSParser::FLength | CSSParser::FPercent;
+ m_type = WebKitCSSTransformValue::Translate3DTransformOperation;
+ m_argCount = 5;
+ }
+ break;
+ } // end switch ()
+ }
+
+ WebKitCSSTransformValue::TransformOperationType type() const { return m_type; }
+ unsigned argCount() const { return m_argCount; }
+ CSSParser::Units unit() const { return m_unit; }
+
+ bool unknown() const { return m_type == WebKitCSSTransformValue::UnknownTransformOperation; }
+ bool hasCorrectArgCount(unsigned argCount) { return m_argCount == argCount || (m_allowSingleArgument && argCount == 1); }
+
+private:
+ WebKitCSSTransformValue::TransformOperationType m_type;
+ unsigned m_argCount;
+ bool m_allowSingleArgument;
+ CSSParser::Units m_unit;
+};
+
+RefPtr<CSSValueList> CSSParser::parseTransform()
+{
+ if (!m_valueList)
+ return nullptr;
+
+ auto list = CSSValueList::createSpaceSeparated();
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ auto parsedTransformValue = parseTransformValue(*value);
+ if (!parsedTransformValue)
+ return nullptr;
+
+ list->append(parsedTransformValue.releaseNonNull());
+ }
+
+ return WTFMove(list);
+}
+
+RefPtr<WebKitCSSTransformValue> CSSParser::parseTransformValue(CSSParserValue& value)
+{
+ if (value.unit != CSSParserValue::Function || !value.function)
+ return nullptr;
+
+ // Every primitive requires at least one argument.
+ CSSParserValueList* args = value.function->args.get();
+ if (!args)
+ return nullptr;
+
+ // See if the specified primitive is one we understand.
+ TransformOperationInfo info(value.function->name);
+ if (info.unknown())
+ return nullptr;
+
+ if (!info.hasCorrectArgCount(args->size()))
+ return nullptr;
+
+ // The transform is a list of functional primitives that specify transform operations.
+ // We collect a list of WebKitCSSTransformValues, where each value specifies a single operation.
+
+ // Create the new WebKitCSSTransformValue for this operation and add it to our list.
+ auto transformValue = WebKitCSSTransformValue::create(info.type());
+
+ // Snag our values.
+ CSSParserValue* argument = args->current();
+ unsigned argNumber = 0;
+ while (argument) {
+ ValueWithCalculation argumentWithCalculation(*argument);
+ CSSParser::Units unit = info.unit();
+
+ if (info.type() == WebKitCSSTransformValue::Rotate3DTransformOperation && argNumber == 3) {
+ // 4th param of rotate3d() is an angle rather than a bare number, validate it as such
+ if (!validateUnit(argumentWithCalculation, FAngle, CSSStrictMode))
+ return nullptr;
+ } else if (info.type() == WebKitCSSTransformValue::Translate3DTransformOperation && argNumber == 2) {
+ // 3rd param of translate3d() cannot be a percentage
+ if (!validateUnit(argumentWithCalculation, FLength, CSSStrictMode))
+ return nullptr;
+ } else if (info.type() == WebKitCSSTransformValue::TranslateZTransformOperation && !argNumber) {
+ // 1st param of translateZ() cannot be a percentage
+ if (!validateUnit(argumentWithCalculation, FLength, CSSStrictMode))
+ return nullptr;
+ } else if (info.type() == WebKitCSSTransformValue::PerspectiveTransformOperation && !argNumber) {
+ // 1st param of perspective() must be a non-negative number (deprecated) or length.
+ if (!validateUnit(argumentWithCalculation, FNumber | FLength | FNonNeg, CSSStrictMode))
+ return nullptr;
+ } else if (!validateUnit(argumentWithCalculation, unit, CSSStrictMode))
+ return nullptr;
+
+ // Add the value to the current transform operation.
+ transformValue->append(createPrimitiveNumericValue(argumentWithCalculation));
+
+ argument = args->next();
+ if (!argument)
+ break;
+ if (argument->unit != CSSParserValue::Operator || argument->iValue != ',')
+ return nullptr;
+ argument = args->next();
+
+ ++argNumber;
+ }
+
+ return WTFMove(transformValue);
+}
+
+bool CSSParser::isBlendMode(CSSValueID valueID)
+{
+ return (valueID >= CSSValueMultiply && valueID <= CSSValueLuminosity)
+ || valueID == CSSValueNormal
+ || valueID == CSSValueOverlay;
+}
+
+bool CSSParser::isCompositeOperator(CSSValueID valueID)
+{
+ // FIXME: Add CSSValueDestination and CSSValueLighter when the Compositing spec updates.
+ return valueID >= CSSValueClear && valueID <= CSSValueXor;
+}
+
+static void filterInfoForName(const CSSParserString& name, WebKitCSSFilterValue::FilterOperationType& filterType, unsigned& maximumArgumentCount)
+{
+ if (equalLettersIgnoringASCIICase(name, "grayscale("))
+ filterType = WebKitCSSFilterValue::GrayscaleFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "sepia("))
+ filterType = WebKitCSSFilterValue::SepiaFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "saturate("))
+ filterType = WebKitCSSFilterValue::SaturateFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "hue-rotate("))
+ filterType = WebKitCSSFilterValue::HueRotateFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "invert("))
+ filterType = WebKitCSSFilterValue::InvertFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "opacity("))
+ filterType = WebKitCSSFilterValue::OpacityFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "brightness("))
+ filterType = WebKitCSSFilterValue::BrightnessFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "contrast("))
+ filterType = WebKitCSSFilterValue::ContrastFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "blur("))
+ filterType = WebKitCSSFilterValue::BlurFilterOperation;
+ else if (equalLettersIgnoringASCIICase(name, "drop-shadow(")) {
+ filterType = WebKitCSSFilterValue::DropShadowFilterOperation;
+ maximumArgumentCount = 4; // x-offset, y-offset, blur-radius, color -- spread and inset style not allowed.
+ }
+}
+
+RefPtr<WebKitCSSFilterValue> CSSParser::parseBuiltinFilterArguments(CSSParserValueList& args, WebKitCSSFilterValue::FilterOperationType filterType)
+{
+ auto filterValue = WebKitCSSFilterValue::create(filterType);
+
+ switch (filterType) {
+ case WebKitCSSFilterValue::GrayscaleFilterOperation:
+ case WebKitCSSFilterValue::SepiaFilterOperation:
+ case WebKitCSSFilterValue::SaturateFilterOperation:
+ case WebKitCSSFilterValue::InvertFilterOperation:
+ case WebKitCSSFilterValue::OpacityFilterOperation:
+ case WebKitCSSFilterValue::ContrastFilterOperation: {
+ // One optional argument, 0-1 or 0%-100%, if missing use 100%.
+ if (args.size() > 1)
+ return nullptr;
+
+ if (args.size()) {
+ ValueWithCalculation argumentWithCalculation(*args.current());
+ if (!validateUnit(argumentWithCalculation, FNumber | FPercent | FNonNeg, CSSStrictMode))
+ return nullptr;
+
+ auto primitiveValue = createPrimitiveNumericValue(argumentWithCalculation);
+
+ // Saturate and Contrast allow values over 100%.
+ if (filterType != WebKitCSSFilterValue::SaturateFilterOperation
+ && filterType != WebKitCSSFilterValue::ContrastFilterOperation) {
+ double maxAllowed = primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE ? 100.0 : 1.0;
+ if (primitiveValue->getDoubleValue() > maxAllowed)
+ return nullptr;
+ }
+
+ filterValue->append(WTFMove(primitiveValue));
+ }
+ break;
+ }
+ case WebKitCSSFilterValue::BrightnessFilterOperation: {
+ // One optional argument, if missing use 100%.
+ if (args.size() > 1)
+ return nullptr;
+
+ if (args.size()) {
+ ValueWithCalculation argumentWithCalculation(*args.current());
+ if (!validateUnit(argumentWithCalculation, FNumber | FPercent, CSSStrictMode))
+ return nullptr;
+
+ filterValue->append(createPrimitiveNumericValue(argumentWithCalculation));
+ }
+ break;
+ }
+ case WebKitCSSFilterValue::HueRotateFilterOperation: {
+ // hue-rotate() takes one optional angle.
+ if (args.size() > 1)
+ return nullptr;
+
+ if (args.size()) {
+ ValueWithCalculation argumentWithCalculation(*args.current());
+ if (!validateUnit(argumentWithCalculation, FAngle, CSSStrictMode))
+ return nullptr;
+
+ filterValue->append(createPrimitiveNumericValue(argumentWithCalculation));
+ }
+ break;
+ }
+ case WebKitCSSFilterValue::BlurFilterOperation: {
+ // Blur takes a single length. Zero parameters are allowed.
+ if (args.size() > 1)
+ return nullptr;
+
+ if (args.size()) {
+ ValueWithCalculation argumentWithCalculation(*args.current());
+ if (!validateUnit(argumentWithCalculation, FLength | FNonNeg, CSSStrictMode))
+ return nullptr;
+
+ filterValue->append(createPrimitiveNumericValue(argumentWithCalculation));
+ }
+ break;
+ }
+ case WebKitCSSFilterValue::DropShadowFilterOperation: {
+ // drop-shadow() takes a single shadow.
+ RefPtr<CSSValueList> shadowValueList = parseShadow(args, CSSPropertyFilter);
+ if (!shadowValueList || shadowValueList->length() != 1)
+ return nullptr;
+
+ filterValue->append(*shadowValueList->itemWithoutBoundsCheck(0));
+ break;
+ }
+ default:
+ ASSERT_NOT_REACHED();
+ }
+ return WTFMove(filterValue);
+}
+
+bool CSSParser::parseFilter(CSSParserValueList& valueList, RefPtr<CSSValueList>& result)
+{
+ // The filter is a list of functional primitives that specify individual operations.
+ auto list = CSSValueList::createSpaceSeparated();
+ for (auto* value = valueList.current(); value; value = valueList.next()) {
+ if (value->unit != CSSPrimitiveValue::CSS_URI && (value->unit != CSSParserValue::Function || !value->function))
+ return false;
+
+ WebKitCSSFilterValue::FilterOperationType filterType = WebKitCSSFilterValue::UnknownFilterOperation;
+
+ // See if the specified primitive is one we understand.
+ if (value->unit == CSSPrimitiveValue::CSS_URI) {
+ auto referenceFilterValue = WebKitCSSFilterValue::create(WebKitCSSFilterValue::ReferenceFilterOperation);
+ referenceFilterValue->append(CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_URI));
+ list->append(WTFMove(referenceFilterValue));
+ } else {
+ const CSSParserString name = value->function->name;
+ unsigned maximumArgumentCount = 1;
+
+ filterInfoForName(name, filterType, maximumArgumentCount);
+
+ if (filterType == WebKitCSSFilterValue::UnknownFilterOperation)
+ return false;
+
+ CSSParserValueList* args = value->function->args.get();
+ if (!args)
+ return false;
+
+ RefPtr<WebKitCSSFilterValue> filterValue = parseBuiltinFilterArguments(*args, filterType);
+ if (!filterValue)
+ return false;
+
+ list->append(filterValue.releaseNonNull());
+ }
+ }
+
+ result = WTFMove(list);
+
+ return true;
+}
+
+#if ENABLE(CSS_REGIONS)
+static bool validFlowName(const String& flowName)
+{
+ return !(equalLettersIgnoringASCIICase(flowName, "auto")
+ || equalLettersIgnoringASCIICase(flowName, "default")
+ || equalLettersIgnoringASCIICase(flowName, "inherit")
+ || equalLettersIgnoringASCIICase(flowName, "initial")
+ || equalLettersIgnoringASCIICase(flowName, "none"));
+}
+#endif
+
+#if ENABLE(IOS_TEXT_AUTOSIZING)
+bool CSSParser::isTextAutosizingEnabled() const
+{
+ return m_context.textAutosizingEnabled;
+}
+#endif
+
+#if ENABLE(CSS_GRID_LAYOUT)
+bool CSSParser::isCSSGridLayoutEnabled() const
+{
+ return m_context.cssGridLayoutEnabled;
+}
+#endif
+
+#if ENABLE(CSS_REGIONS)
+
+// none | <ident>
+bool CSSParser::parseFlowThread(CSSPropertyID propId, bool important)
+{
+ ASSERT(propId == CSSPropertyWebkitFlowInto);
+
+ if (m_valueList->size() != 1)
+ return false;
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return false;
+
+ if (value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ if (value->id == CSSValueNone) {
+ addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
+ return true;
+ }
+
+ String inputProperty = String(value->string);
+ if (!inputProperty.isEmpty()) {
+ if (!validFlowName(inputProperty))
+ return false;
+ addProperty(propId, CSSValuePool::singleton().createValue(inputProperty, CSSPrimitiveValue::CSS_STRING), important);
+ } else
+ addProperty(propId, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+
+ return true;
+}
+
+// -webkit-flow-from: none | <ident>
+bool CSSParser::parseRegionThread(CSSPropertyID propId, bool important)
+{
+ ASSERT(propId == CSSPropertyWebkitFlowFrom);
+
+ if (m_valueList->size() != 1)
+ return false;
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return false;
+
+ if (value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ if (value->id == CSSValueNone)
+ addProperty(propId, CSSValuePool::singleton().createIdentifierValue(value->id), important);
+ else {
+ String inputProperty = String(value->string);
+ if (!inputProperty.isEmpty()) {
+ if (!validFlowName(inputProperty))
+ return false;
+ addProperty(propId, CSSValuePool::singleton().createValue(inputProperty, CSSPrimitiveValue::CSS_STRING), important);
+ } else
+ addProperty(propId, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ }
+
+ return true;
+}
+#endif
+
+bool CSSParser::parseTransformOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, CSSPropertyID& propId3, RefPtr<CSSPrimitiveValue>& value, RefPtr<CSSPrimitiveValue>& value2, RefPtr<CSSValue>& value3)
+{
+ propId1 = propId;
+ propId2 = propId;
+ propId3 = propId;
+ if (propId == CSSPropertyTransformOrigin) {
+ propId1 = CSSPropertyTransformOriginX;
+ propId2 = CSSPropertyTransformOriginY;
+ propId3 = CSSPropertyTransformOriginZ;
+ }
+
+ switch (propId) {
+ case CSSPropertyTransformOrigin:
+ if (!parseTransformOriginShorthand(value, value2, value3))
+ return false;
+ // parseTransformOriginShorthand advances the m_valueList pointer
+ break;
+ case CSSPropertyTransformOriginX: {
+ value = parsePositionX(*m_valueList);
+ if (value)
+ m_valueList->next();
+ break;
+ }
+ case CSSPropertyTransformOriginY: {
+ value = parsePositionY(*m_valueList);
+ if (value)
+ m_valueList->next();
+ break;
+ }
+ case CSSPropertyTransformOriginZ: {
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+ if (validateUnit(valueWithCalculation, FLength))
+ value = createPrimitiveNumericValue(valueWithCalculation);
+ if (value)
+ m_valueList->next();
+ break;
+ }
+ default:
+ ASSERT_NOT_REACHED();
+ return false;
+ }
+
+ return value;
+}
+
+bool CSSParser::parsePerspectiveOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, RefPtr<CSSPrimitiveValue>& value, RefPtr<CSSPrimitiveValue>& value2)
+{
+ propId1 = propId;
+ propId2 = propId;
+ if (propId == CSSPropertyPerspectiveOrigin) {
+ propId1 = CSSPropertyPerspectiveOriginX;
+ propId2 = CSSPropertyPerspectiveOriginY;
+ }
+
+ switch (propId) {
+ case CSSPropertyPerspectiveOrigin:
+ if (m_valueList->size() > 2)
+ return false;
+ parse2ValuesFillPosition(*m_valueList, value, value2);
+ break;
+ case CSSPropertyPerspectiveOriginX: {
+ value = parsePositionX(*m_valueList);
+ if (value)
+ m_valueList->next();
+ break;
+ }
+ case CSSPropertyPerspectiveOriginY: {
+ value = parsePositionY(*m_valueList);
+ if (value)
+ m_valueList->next();
+ break;
+ }
+ default:
+ ASSERT_NOT_REACHED();
+ return false;
+ }
+
+ return value;
+}
+
+void CSSParser::addTextDecorationProperty(CSSPropertyID propId, RefPtr<CSSValue>&& value, bool important)
+{
+ // The text-decoration-line property takes priority over text-decoration, unless the latter has important priority set.
+ if (propId == CSSPropertyTextDecoration && !important && !inShorthand()) {
+ for (unsigned i = 0; i < m_parsedProperties.size(); ++i) {
+ if (m_parsedProperties[i].id() == CSSPropertyWebkitTextDecorationLine)
+ return;
+ }
+ }
+ addProperty(propId, WTFMove(value), important);
+}
+
+bool CSSParser::parseTextDecoration(CSSPropertyID propId, bool important)
+{
+ CSSParserValue* value = m_valueList->current();
+ if (value && value->id == CSSValueNone) {
+ addTextDecorationProperty(propId, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ m_valueList->next();
+ return true;
+ }
+
+ auto list = CSSValueList::createSpaceSeparated();
+ bool isValid = true;
+ while (isValid && value) {
+ switch (value->id) {
+ case CSSValueBlink:
+ case CSSValueLineThrough:
+ case CSSValueOverline:
+ case CSSValueUnderline:
+#if ENABLE(LETTERPRESS)
+ case CSSValueWebkitLetterpress:
+#endif
+ list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
+ break;
+ default:
+ isValid = false;
+ break;
+ }
+ if (isValid)
+ value = m_valueList->next();
+ }
+
+ // Values are either valid or in shorthand scope.
+ if (list->length() && (isValid || inShorthand())) {
+ addTextDecorationProperty(propId, WTFMove(list), important);
+ return true;
+ }
+
+ return false;
+}
+
+bool CSSParser::parseTextDecorationSkip(bool important)
+{
+ // The text-decoration-skip property has syntax "none | [ objects || spaces || ink || edges || box-decoration ]".
+ // However, only 'none' and 'ink' are implemented yet, so we will parse syntax "none | ink" for now.
+ CSSParserValue* value = m_valueList->current();
+ do {
+ switch (value->id) {
+ case CSSValueNone:
+ case CSSValueAuto:
+ case CSSValueInk:
+ case CSSValueObjects:
+ addProperty(CSSPropertyWebkitTextDecorationSkip, CSSValuePool::singleton().createIdentifierValue(value->id), important);
+ return true;
+ default:
+ break;
+ }
+ } while ((value = m_valueList->next()));
+ return false;
+}
+
+bool CSSParser::parseTextUnderlinePosition(bool important)
+{
+ // The text-underline-position property has sintax "auto | alphabetic | [ under || [ left | right ] ]".
+ // However, values 'left' and 'right' are not implemented yet, so we will parse sintax
+ // "auto | alphabetic | under" for now.
+ CSSParserValue& value = *m_valueList->current();
+ switch (value.id) {
+ case CSSValueAuto:
+ case CSSValueAlphabetic:
+ case CSSValueUnder:
+ if (m_valueList->next())
+ return false;
+
+ addProperty(CSSPropertyWebkitTextUnderlinePosition, CSSValuePool::singleton().createIdentifierValue(value.id), important);
+ return true;
+ default:
+ break;
+ }
+ return false;
+}
+
+bool CSSParser::parseTextEmphasisStyle(bool important)
+{
+ unsigned valueListSize = m_valueList->size();
+
+ RefPtr<CSSPrimitiveValue> fill;
+ RefPtr<CSSPrimitiveValue> shape;
+
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (value->unit == CSSPrimitiveValue::CSS_STRING) {
+ if (fill || shape || (valueListSize != 1 && !inShorthand()))
+ return false;
+ addProperty(CSSPropertyWebkitTextEmphasisStyle, createPrimitiveStringValue(*value), important);
+ m_valueList->next();
+ return true;
+ }
+
+ if (value->id == CSSValueNone) {
+ if (fill || shape || (valueListSize != 1 && !inShorthand()))
+ return false;
+ addProperty(CSSPropertyWebkitTextEmphasisStyle, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ m_valueList->next();
+ return true;
+ }
+
+ if (value->id == CSSValueOpen || value->id == CSSValueFilled) {
+ if (fill)
+ return false;
+ fill = CSSValuePool::singleton().createIdentifierValue(value->id);
+ } else if (value->id == CSSValueDot || value->id == CSSValueCircle || value->id == CSSValueDoubleCircle || value->id == CSSValueTriangle || value->id == CSSValueSesame) {
+ if (shape)
+ return false;
+ shape = CSSValuePool::singleton().createIdentifierValue(value->id);
+ } else if (!inShorthand())
+ return false;
+ else
+ break;
+ }
+
+ if (fill && shape) {
+ auto parsedValues = CSSValueList::createSpaceSeparated();
+ parsedValues->append(fill.releaseNonNull());
+ parsedValues->append(shape.releaseNonNull());
+ addProperty(CSSPropertyWebkitTextEmphasisStyle, WTFMove(parsedValues), important);
+ return true;
+ }
+ if (fill) {
+ addProperty(CSSPropertyWebkitTextEmphasisStyle, fill.releaseNonNull(), important);
+ return true;
+ }
+ if (shape) {
+ addProperty(CSSPropertyWebkitTextEmphasisStyle, shape.releaseNonNull(), important);
+ return true;
+ }
+
+ return false;
+}
+
+bool CSSParser::parseTextEmphasisPosition(bool important)
+{
+ bool foundOverOrUnder = false;
+ CSSValueID overUnderValueID = CSSValueOver;
+ bool foundLeftOrRight = false;
+ CSSValueID leftRightValueID = CSSValueRight;
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ switch (value->id) {
+ case CSSValueOver:
+ if (foundOverOrUnder)
+ return false;
+ foundOverOrUnder = true;
+ overUnderValueID = CSSValueOver;
+ break;
+ case CSSValueUnder:
+ if (foundOverOrUnder)
+ return false;
+ foundOverOrUnder = true;
+ overUnderValueID = CSSValueUnder;
+ break;
+ case CSSValueLeft:
+ if (foundLeftOrRight)
+ return false;
+ foundLeftOrRight = true;
+ leftRightValueID = CSSValueLeft;
+ break;
+ case CSSValueRight:
+ if (foundLeftOrRight)
+ return false;
+ foundLeftOrRight = true;
+ leftRightValueID = CSSValueRight;
+ break;
+ default:
+ return false;
+ }
+ }
+ if (!foundOverOrUnder)
+ return false;
+ auto list = CSSValueList::createSpaceSeparated();
+ list->append(CSSValuePool::singleton().createIdentifierValue(overUnderValueID));
+ if (foundLeftOrRight)
+ list->append(CSSValuePool::singleton().createIdentifierValue(leftRightValueID));
+ addProperty(CSSPropertyWebkitTextEmphasisPosition, WTFMove(list), important);
+ return true;
+}
+
+RefPtr<CSSValueList> CSSParser::parseTextIndent()
+{
+ // <length> | <percentage> | inherit when CSS3_TEXT is disabled.
+ // [ <length> | <percentage> ] && [ -webkit-hanging || -webkit-each-line ]? | inherit when CSS3_TEXT is enabled.
+ auto list = CSSValueList::createSpaceSeparated();
+ bool hasLengthOrPercentage = false;
+#if ENABLE(CSS3_TEXT)
+ bool hasEachLine = false;
+ bool hasHanging = false;
+#endif
+
+ CSSParserValue* value = m_valueList->current();
+ while (value) {
+ ValueWithCalculation valueWithCalculation(*value);
+ if (!hasLengthOrPercentage && validateUnit(valueWithCalculation, FLength | FPercent)) {
+ list->append(createPrimitiveNumericValue(valueWithCalculation));
+ hasLengthOrPercentage = true;
+ }
+#if ENABLE(CSS3_TEXT)
+ else if (!hasEachLine && value->id == CSSValueWebkitEachLine) {
+ list->append(CSSValuePool::singleton().createIdentifierValue(CSSValueWebkitEachLine));
+ hasEachLine = true;
+ } else if (!hasHanging && value->id == CSSValueWebkitHanging) {
+ list->append(CSSValuePool::singleton().createIdentifierValue(CSSValueWebkitHanging));
+ hasHanging = true;
+ }
+#endif
+ else
+ return nullptr;
+
+ value = m_valueList->next();
+ }
+
+ if (!hasLengthOrPercentage)
+ return nullptr;
+
+ return WTFMove(list);
+}
+
+bool CSSParser::parseHangingPunctuation(bool important)
+{
+ CSSParserValue* value = m_valueList->current();
+ if (value && value->id == CSSValueNone) {
+ addProperty(CSSPropertyHangingPunctuation, CSSValuePool::singleton().createIdentifierValue(CSSValueNone), important);
+ m_valueList->next();
+ return true;
+ }
+
+ auto list = CSSValueList::createSpaceSeparated();
+ bool isValid = true;
+ std::bitset<numCSSValueKeywords> seenValues;
+ while (isValid && value) {
+ if (seenValues[value->id]
+ || (value->id == CSSValueAllowEnd && seenValues[CSSValueForceEnd])
+ || (value->id == CSSValueForceEnd && seenValues[CSSValueAllowEnd])) {
+ isValid = false;
+ break;
+ }
+ switch (value->id) {
+ case CSSValueAllowEnd:
+ case CSSValueFirst:
+ case CSSValueForceEnd:
+ case CSSValueLast:
+ list->append(CSSValuePool::singleton().createIdentifierValue(value->id));
+ seenValues.set(value->id);
+ break;
+ default:
+ isValid = false;
+ break;
+ }
+ if (isValid)
+ value = m_valueList->next();
+ }
+
+ // Values are either valid or in shorthand scope.
+ if (list->length() && isValid) {
+ addProperty(CSSPropertyHangingPunctuation, WTFMove(list), important);
+ return true;
+ }
+
+ return false;
+}
+
+bool CSSParser::parseLineBoxContain(bool important)
+{
+ LineBoxContain lineBoxContain = LineBoxContainNone;
+
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (value->id == CSSValueBlock) {
+ if (lineBoxContain & LineBoxContainBlock)
+ return false;
+ lineBoxContain |= LineBoxContainBlock;
+ } else if (value->id == CSSValueInline) {
+ if (lineBoxContain & LineBoxContainInline)
+ return false;
+ lineBoxContain |= LineBoxContainInline;
+ } else if (value->id == CSSValueFont) {
+ if (lineBoxContain & LineBoxContainFont)
+ return false;
+ lineBoxContain |= LineBoxContainFont;
+ } else if (value->id == CSSValueGlyphs) {
+ if (lineBoxContain & LineBoxContainGlyphs)
+ return false;
+ lineBoxContain |= LineBoxContainGlyphs;
+ } else if (value->id == CSSValueReplaced) {
+ if (lineBoxContain & LineBoxContainReplaced)
+ return false;
+ lineBoxContain |= LineBoxContainReplaced;
+ } else if (value->id == CSSValueInlineBox) {
+ if (lineBoxContain & LineBoxContainInlineBox)
+ return false;
+ lineBoxContain |= LineBoxContainInlineBox;
+ } else if (value->id == CSSValueInitialLetter) {
+ if (lineBoxContain & LineBoxContainInitialLetter)
+ return false;
+ lineBoxContain |= LineBoxContainInitialLetter;
+ } else
+ return false;
+ }
+
+ if (!lineBoxContain)
+ return false;
+
+ addProperty(CSSPropertyWebkitLineBoxContain, CSSLineBoxContainValue::create(lineBoxContain), important);
+ return true;
+}
+
+bool CSSParser::parseFontFeatureTag(CSSValueList& settings)
+{
+ CSSParserValue* value = m_valueList->current();
+ // Feature tag name comes first
+ if (value->unit != CSSPrimitiveValue::CSS_STRING)
+ return false;
+ FontFeatureTag tag;
+ if (value->string.length() != tag.size())
+ return false;
+ for (unsigned i = 0; i < tag.size(); ++i) {
+ // Limits the range of characters to 0x20-0x7E, following the tag name rules defiend in the OpenType specification.
+ UChar character = value->string[i];
+ if (character < 0x20 || character > 0x7E)
+ return false;
+ tag[i] = toASCIILower(character);
+ }
+
+ int tagValue = 1;
+ // Feature tag values could follow: <integer> | on | off
+ value = m_valueList->next();
+ if (value) {
+ if (value->unit == CSSPrimitiveValue::CSS_NUMBER && value->isInt && value->fValue >= 0) {
+ tagValue = clampToInteger(value->fValue);
+ if (tagValue < 0)
+ return false;
+ m_valueList->next();
+ } else if (value->id == CSSValueOn || value->id == CSSValueOff) {
+ tagValue = value->id == CSSValueOn;
+ m_valueList->next();
+ }
+ }
+ settings.append(CSSFontFeatureValue::create(WTFMove(tag), tagValue));
+ return true;
+}
+
+bool CSSParser::parseFontFeatureSettings(bool important)
+{
+ if (m_valueList->size() == 1 && m_valueList->current()->id == CSSValueNormal) {
+ auto normalValue = CSSValuePool::singleton().createIdentifierValue(CSSValueNormal);
+ m_valueList->next();
+ addProperty(CSSPropertyFontFeatureSettings, WTFMove(normalValue), important);
+ return true;
+ }
+
+ auto settings = CSSValueList::createCommaSeparated();
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (!parseFontFeatureTag(settings))
+ return false;
+
+ // If the list isn't parsed fully, the current value should be comma.
+ value = m_valueList->current();
+ if (value && !isComma(value))
+ return false;
+ }
+ if (settings->length()) {
+ addProperty(CSSPropertyFontFeatureSettings, WTFMove(settings), important);
+ return true;
+ }
+ return false;
+}
+
+bool CSSParser::parseFontVariantLigatures(bool important, bool unknownIsFailure, bool implicit)
+{
+ auto values = CSSValueList::createSpaceSeparated();
+ FontVariantLigatures commonLigatures = FontVariantLigatures::Normal;
+ FontVariantLigatures discretionaryLigatures = FontVariantLigatures::Normal;
+ FontVariantLigatures historicalLigatures = FontVariantLigatures::Normal;
+ FontVariantLigatures contextualAlternates = FontVariantLigatures::Normal;
+
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ switch (value->id) {
+ case CSSValueNoCommonLigatures:
+ commonLigatures = FontVariantLigatures::No;
+ break;
+ case CSSValueCommonLigatures:
+ commonLigatures = FontVariantLigatures::Yes;
+ break;
+ case CSSValueNoDiscretionaryLigatures:
+ discretionaryLigatures = FontVariantLigatures::No;
+ break;
+ case CSSValueDiscretionaryLigatures:
+ discretionaryLigatures = FontVariantLigatures::Yes;
+ break;
+ case CSSValueNoHistoricalLigatures:
+ historicalLigatures = FontVariantLigatures::No;
+ break;
+ case CSSValueHistoricalLigatures:
+ historicalLigatures = FontVariantLigatures::Yes;
+ break;
+ case CSSValueContextual:
+ contextualAlternates = FontVariantLigatures::Yes;
+ break;
+ case CSSValueNoContextual:
+ contextualAlternates = FontVariantLigatures::No;
+ break;
+ default:
+ if (unknownIsFailure)
+ return false;
+ continue;
+ }
+ }
+
+ switch (commonLigatures) {
+ case FontVariantLigatures::Normal:
+ break;
+ case FontVariantLigatures::Yes:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueCommonLigatures));
+ break;
+ case FontVariantLigatures::No:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueNoCommonLigatures));
+ break;
+ }
+
+ switch (discretionaryLigatures) {
+ case FontVariantLigatures::Normal:
+ break;
+ case FontVariantLigatures::Yes:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueDiscretionaryLigatures));
+ break;
+ case FontVariantLigatures::No:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueNoDiscretionaryLigatures));
+ break;
+ }
+
+ switch (historicalLigatures) {
+ case FontVariantLigatures::Normal:
+ break;
+ case FontVariantLigatures::Yes:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueHistoricalLigatures));
+ break;
+ case FontVariantLigatures::No:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueNoHistoricalLigatures));
+ break;
+ }
+
+ switch (contextualAlternates) {
+ case FontVariantLigatures::Normal:
+ break;
+ case FontVariantLigatures::Yes:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueContextual));
+ break;
+ case FontVariantLigatures::No:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueNoContextual));
+ break;
+ }
+
+ if (!values->length())
+ return !unknownIsFailure;
+
+ addProperty(CSSPropertyFontVariantLigatures, WTFMove(values), important, implicit);
+ return true;
+}
+
+bool CSSParser::parseFontVariantNumeric(bool important, bool unknownIsFailure, bool implicit)
+{
+ auto values = CSSValueList::createSpaceSeparated();
+ FontVariantNumericFigure figure = FontVariantNumericFigure::Normal;
+ FontVariantNumericSpacing spacing = FontVariantNumericSpacing::Normal;
+ FontVariantNumericFraction fraction = FontVariantNumericFraction::Normal;
+ FontVariantNumericOrdinal ordinal = FontVariantNumericOrdinal::Normal;
+ FontVariantNumericSlashedZero slashedZero = FontVariantNumericSlashedZero::Normal;
+
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ switch (value->id) {
+ case CSSValueLiningNums:
+ figure = FontVariantNumericFigure::LiningNumbers;
+ break;
+ case CSSValueOldstyleNums:
+ figure = FontVariantNumericFigure::OldStyleNumbers;
+ break;
+ case CSSValueProportionalNums:
+ spacing = FontVariantNumericSpacing::ProportionalNumbers;
+ break;
+ case CSSValueTabularNums:
+ spacing = FontVariantNumericSpacing::TabularNumbers;
+ break;
+ case CSSValueDiagonalFractions:
+ fraction = FontVariantNumericFraction::DiagonalFractions;
+ break;
+ case CSSValueStackedFractions:
+ fraction = FontVariantNumericFraction::StackedFractions;
+ break;
+ case CSSValueOrdinal:
+ ordinal = FontVariantNumericOrdinal::Yes;
+ break;
+ case CSSValueSlashedZero:
+ slashedZero = FontVariantNumericSlashedZero::Yes;
+ break;
+ default:
+ if (unknownIsFailure)
+ return false;
+ continue;
+ }
+ }
+
+ switch (figure) {
+ case FontVariantNumericFigure::Normal:
+ break;
+ case FontVariantNumericFigure::LiningNumbers:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueLiningNums));
+ break;
+ case FontVariantNumericFigure::OldStyleNumbers:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueOldstyleNums));
+ break;
+ }
+
+ switch (spacing) {
+ case FontVariantNumericSpacing::Normal:
+ break;
+ case FontVariantNumericSpacing::ProportionalNumbers:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueProportionalNums));
+ break;
+ case FontVariantNumericSpacing::TabularNumbers:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueTabularNums));
+ break;
+ }
+
+ switch (fraction) {
+ case FontVariantNumericFraction::Normal:
+ break;
+ case FontVariantNumericFraction::DiagonalFractions:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueDiagonalFractions));
+ break;
+ case FontVariantNumericFraction::StackedFractions:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueStackedFractions));
+ break;
+ }
+
+ switch (ordinal) {
+ case FontVariantNumericOrdinal::Normal:
+ break;
+ case FontVariantNumericOrdinal::Yes:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueOrdinal));
+ break;
+ }
+
+ switch (slashedZero) {
+ case FontVariantNumericSlashedZero::Normal:
+ break;
+ case FontVariantNumericSlashedZero::Yes:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueSlashedZero));
+ break;
+ }
+
+ if (!values->length())
+ return !unknownIsFailure;
+
+ addProperty(CSSPropertyFontVariantNumeric, WTFMove(values), important, implicit);
+ return true;
+}
+
+bool CSSParser::parseFontVariantEastAsian(bool important, bool unknownIsFailure, bool implicit)
+{
+ auto values = CSSValueList::createSpaceSeparated();
+ FontVariantEastAsianVariant variant = FontVariantEastAsianVariant::Normal;
+ FontVariantEastAsianWidth width = FontVariantEastAsianWidth::Normal;
+ FontVariantEastAsianRuby ruby = FontVariantEastAsianRuby::Normal;
+
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ switch (value->id) {
+ case CSSValueJis78:
+ variant = FontVariantEastAsianVariant::Jis78;
+ break;
+ case CSSValueJis83:
+ variant = FontVariantEastAsianVariant::Jis83;
+ break;
+ case CSSValueJis90:
+ variant = FontVariantEastAsianVariant::Jis90;
+ break;
+ case CSSValueJis04:
+ variant = FontVariantEastAsianVariant::Jis04;
+ break;
+ case CSSValueSimplified:
+ variant = FontVariantEastAsianVariant::Simplified;
+ break;
+ case CSSValueTraditional:
+ variant = FontVariantEastAsianVariant::Traditional;
+ break;
+ case CSSValueFullWidth:
+ width = FontVariantEastAsianWidth::Full;
+ break;
+ case CSSValueProportionalWidth:
+ width = FontVariantEastAsianWidth::Proportional;
+ break;
+ case CSSValueRuby:
+ ruby = FontVariantEastAsianRuby::Yes;
+ break;
+ default:
+ if (unknownIsFailure)
+ return false;
+ continue;
+ }
+ }
+
+ switch (variant) {
+ case FontVariantEastAsianVariant::Normal:
+ break;
+ case FontVariantEastAsianVariant::Jis78:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueJis78));
+ break;
+ case FontVariantEastAsianVariant::Jis83:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueJis83));
+ break;
+ case FontVariantEastAsianVariant::Jis90:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueJis90));
+ break;
+ case FontVariantEastAsianVariant::Jis04:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueJis04));
+ break;
+ case FontVariantEastAsianVariant::Simplified:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueSimplified));
+ break;
+ case FontVariantEastAsianVariant::Traditional:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueTraditional));
+ break;
+ }
+
+ switch (width) {
+ case FontVariantEastAsianWidth::Normal:
+ break;
+ case FontVariantEastAsianWidth::Full:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueFullWidth));
+ break;
+ case FontVariantEastAsianWidth::Proportional:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueProportionalWidth));
+ break;
+ }
+
+ switch (ruby) {
+ case FontVariantEastAsianRuby::Normal:
+ break;
+ case FontVariantEastAsianRuby::Yes:
+ values->append(CSSValuePool::singleton().createIdentifierValue(CSSValueRuby));
+ }
+
+ if (!values->length())
+ return !unknownIsFailure;
+
+ addProperty(CSSPropertyFontVariantEastAsian, WTFMove(values), important, implicit);
+ return true;
+}
+
+bool CSSParser::parseFontVariant(bool important)
+{
+ ShorthandScope scope(this, CSSPropertyFontVariant);
+ if (!parseFontVariantLigatures(important, false, false))
+ return false;
+ m_valueList->setCurrentIndex(0);
+ if (!parseFontVariantNumeric(important, false, false))
+ return false;
+ m_valueList->setCurrentIndex(0);
+ if (!parseFontVariantEastAsian(important, false, false))
+ return false;
+ m_valueList->setCurrentIndex(0);
+
+ FontVariantPosition position = FontVariantPosition::Normal;
+ FontVariantCaps caps = FontVariantCaps::Normal;
+ FontVariantAlternates alternates = FontVariantAlternates::Normal;
+
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ switch (value->id) {
+ case CSSValueNoCommonLigatures:
+ case CSSValueCommonLigatures:
+ case CSSValueNoDiscretionaryLigatures:
+ case CSSValueDiscretionaryLigatures:
+ case CSSValueNoHistoricalLigatures:
+ case CSSValueHistoricalLigatures:
+ case CSSValueContextual:
+ case CSSValueNoContextual:
+ case CSSValueLiningNums:
+ case CSSValueOldstyleNums:
+ case CSSValueProportionalNums:
+ case CSSValueTabularNums:
+ case CSSValueDiagonalFractions:
+ case CSSValueStackedFractions:
+ case CSSValueOrdinal:
+ case CSSValueSlashedZero:
+ case CSSValueJis78:
+ case CSSValueJis83:
+ case CSSValueJis90:
+ case CSSValueJis04:
+ case CSSValueSimplified:
+ case CSSValueTraditional:
+ case CSSValueFullWidth:
+ case CSSValueProportionalWidth:
+ case CSSValueRuby:
+ break;
+ case CSSValueSub:
+ position = FontVariantPosition::Subscript;
+ break;
+ case CSSValueSuper:
+ position = FontVariantPosition::Superscript;
+ break;
+ case CSSValueSmallCaps:
+ caps = FontVariantCaps::Small;
+ break;
+ case CSSValueAllSmallCaps:
+ caps = FontVariantCaps::AllSmall;
+ break;
+ case CSSValuePetiteCaps:
+ caps = FontVariantCaps::Petite;
+ break;
+ case CSSValueAllPetiteCaps:
+ caps = FontVariantCaps::AllPetite;
+ break;
+ case CSSValueUnicase:
+ caps = FontVariantCaps::Unicase;
+ break;
+ case CSSValueTitlingCaps:
+ caps = FontVariantCaps::Titling;
+ break;
+ case CSSValueHistoricalForms:
+ alternates = FontVariantAlternates::HistoricalForms;
+ break;
+ default:
+ return false;
+ }
+ }
+
+ switch (position) {
+ case FontVariantPosition::Normal:
+ break;
+ case FontVariantPosition::Subscript:
+ addProperty(CSSPropertyFontVariantPosition, CSSValuePool::singleton().createIdentifierValue(CSSValueSub), important, false);
+ break;
+ case FontVariantPosition::Superscript:
+ addProperty(CSSPropertyFontVariantPosition, CSSValuePool::singleton().createIdentifierValue(CSSValueSuper), important, false);
+ break;
+ }
+
+ switch (caps) {
+ case FontVariantCaps::Normal:
+ break;
+ case FontVariantCaps::Small:
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueSmallCaps), important, false);
+ break;
+ case FontVariantCaps::AllSmall:
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueAllSmallCaps), important, false);
+ break;
+ case FontVariantCaps::Petite:
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValuePetiteCaps), important, false);
+ break;
+ case FontVariantCaps::AllPetite:
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueAllPetiteCaps), important, false);
+ break;
+ case FontVariantCaps::Unicase:
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueUnicase), important, false);
+ break;
+ case FontVariantCaps::Titling:
+ addProperty(CSSPropertyFontVariantCaps, CSSValuePool::singleton().createIdentifierValue(CSSValueTitlingCaps), important, false);
+ break;
+ }
+
+ switch (alternates) {
+ case FontVariantAlternates::Normal:
+ break;
+ case FontVariantAlternates::HistoricalForms:
+ addProperty(CSSPropertyFontVariantAlternates, CSSValuePool::singleton().createIdentifierValue(CSSValueHistoricalForms), important, false);
+ break;
+ }
+
+ return true;
+}
+
+static inline bool isValidWillChangeAnimatableFeature(const CSSParserValue& value)
+{
+ if (value.id == CSSValueNone || value.id == CSSValueAuto || value.id == CSSValueAll)
+ return false;
+
+ if (valueIsCSSKeyword(value))
+ return false;
+
+ if (cssPropertyID(value.string) == CSSPropertyWillChange)
+ return false;
+
+ return true;
+}
+
+bool CSSParser::parseWillChange(bool important)
+{
+ auto willChangePropertyValues = CSSValueList::createCommaSeparated();
+
+ bool expectComma = false;
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (expectComma) {
+ if (!isComma(value))
+ return false;
+
+ expectComma = false;
+ continue;
+ }
+
+ if (value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ if (!isValidWillChangeAnimatableFeature(*value))
+ return false;
+
+ RefPtr<CSSValue> cssValue;
+ if (value->id == CSSValueScrollPosition || value->id == CSSValueContents)
+ cssValue = CSSValuePool::singleton().createIdentifierValue(value->id);
+ else {
+ CSSPropertyID propertyID = cssPropertyID(value->string);
+ if (propertyID != CSSPropertyInvalid)
+ cssValue = CSSValuePool::singleton().createIdentifierValue(propertyID);
+ else // This might be a property we don't support.
+ cssValue = createPrimitiveStringValue(*value);
+ }
+
+ willChangePropertyValues->append(cssValue.releaseNonNull());
+ expectComma = true;
+ }
+
+ addProperty(CSSPropertyWillChange, WTFMove(willChangePropertyValues), important);
+ return true;
+}
+
+RefPtr<CSSCalcValue> CSSParser::parseCalculation(CSSParserValue& value, CalculationPermittedValueRange range)
+{
+ ASSERT(isCalculation(value));
+
+ CSSParserValueList* args = value.function->args.get();
+ if (!args || !args->size())
+ return nullptr;
+
+ return CSSCalcValue::create(value.function->name, *args, range);
+}
+
+#define END_TOKEN 0
+
+#include "CSSGrammar.h"
+
+enum CharacterType {
+ // Types for the main switch.
+
+ // The first 4 types must be grouped together, as they
+ // represent the allowed chars in an identifier.
+ CharacterCaselessU,
+ CharacterIdentifierStart,
+ CharacterNumber,
+ CharacterDash,
+
+ CharacterOther,
+ CharacterNull,
+ CharacterWhiteSpace,
+ CharacterEndConditionQuery,
+ CharacterEndNthChild,
+ CharacterQuote,
+ CharacterExclamationMark,
+ CharacterHashmark,
+ CharacterDollar,
+ CharacterAsterisk,
+ CharacterPlus,
+ CharacterDot,
+ CharacterSlash,
+ CharacterLess,
+ CharacterAt,
+ CharacterBackSlash,
+ CharacterXor,
+ CharacterVerticalBar,
+ CharacterTilde,
+};
+
+// 128 ASCII codes
+static const CharacterType typesOfASCIICharacters[128] = {
+/* 0 - Null */ CharacterNull,
+/* 1 - Start of Heading */ CharacterOther,
+/* 2 - Start of Text */ CharacterOther,
+/* 3 - End of Text */ CharacterOther,
+/* 4 - End of Transm. */ CharacterOther,
+/* 5 - Enquiry */ CharacterOther,
+/* 6 - Acknowledgment */ CharacterOther,
+/* 7 - Bell */ CharacterOther,
+/* 8 - Back Space */ CharacterOther,
+/* 9 - Horizontal Tab */ CharacterWhiteSpace,
+/* 10 - Line Feed */ CharacterWhiteSpace,
+/* 11 - Vertical Tab */ CharacterOther,
+/* 12 - Form Feed */ CharacterWhiteSpace,
+/* 13 - Carriage Return */ CharacterWhiteSpace,
+/* 14 - Shift Out */ CharacterOther,
+/* 15 - Shift In */ CharacterOther,
+/* 16 - Data Line Escape */ CharacterOther,
+/* 17 - Device Control 1 */ CharacterOther,
+/* 18 - Device Control 2 */ CharacterOther,
+/* 19 - Device Control 3 */ CharacterOther,
+/* 20 - Device Control 4 */ CharacterOther,
+/* 21 - Negative Ack. */ CharacterOther,
+/* 22 - Synchronous Idle */ CharacterOther,
+/* 23 - End of Transmit */ CharacterOther,
+/* 24 - Cancel */ CharacterOther,
+/* 25 - End of Medium */ CharacterOther,
+/* 26 - Substitute */ CharacterOther,
+/* 27 - Escape */ CharacterOther,
+/* 28 - File Separator */ CharacterOther,
+/* 29 - Group Separator */ CharacterOther,
+/* 30 - Record Separator */ CharacterOther,
+/* 31 - Unit Separator */ CharacterOther,
+/* 32 - Space */ CharacterWhiteSpace,
+/* 33 - ! */ CharacterExclamationMark,
+/* 34 - " */ CharacterQuote,
+/* 35 - # */ CharacterHashmark,
+/* 36 - $ */ CharacterDollar,
+/* 37 - % */ CharacterOther,
+/* 38 - & */ CharacterOther,
+/* 39 - ' */ CharacterQuote,
+/* 40 - ( */ CharacterOther,
+/* 41 - ) */ CharacterEndNthChild,
+/* 42 - * */ CharacterAsterisk,
+/* 43 - + */ CharacterPlus,
+/* 44 - , */ CharacterOther,
+/* 45 - - */ CharacterDash,
+/* 46 - . */ CharacterDot,
+/* 47 - / */ CharacterSlash,
+/* 48 - 0 */ CharacterNumber,
+/* 49 - 1 */ CharacterNumber,
+/* 50 - 2 */ CharacterNumber,
+/* 51 - 3 */ CharacterNumber,
+/* 52 - 4 */ CharacterNumber,
+/* 53 - 5 */ CharacterNumber,
+/* 54 - 6 */ CharacterNumber,
+/* 55 - 7 */ CharacterNumber,
+/* 56 - 8 */ CharacterNumber,
+/* 57 - 9 */ CharacterNumber,
+/* 58 - : */ CharacterOther,
+/* 59 - ; */ CharacterEndConditionQuery,
+/* 60 - < */ CharacterLess,
+/* 61 - = */ CharacterOther,
+/* 62 - > */ CharacterOther,
+/* 63 - ? */ CharacterOther,
+/* 64 - @ */ CharacterAt,
+/* 65 - A */ CharacterIdentifierStart,
+/* 66 - B */ CharacterIdentifierStart,
+/* 67 - C */ CharacterIdentifierStart,
+/* 68 - D */ CharacterIdentifierStart,
+/* 69 - E */ CharacterIdentifierStart,
+/* 70 - F */ CharacterIdentifierStart,
+/* 71 - G */ CharacterIdentifierStart,
+/* 72 - H */ CharacterIdentifierStart,
+/* 73 - I */ CharacterIdentifierStart,
+/* 74 - J */ CharacterIdentifierStart,
+/* 75 - K */ CharacterIdentifierStart,
+/* 76 - L */ CharacterIdentifierStart,
+/* 77 - M */ CharacterIdentifierStart,
+/* 78 - N */ CharacterIdentifierStart,
+/* 79 - O */ CharacterIdentifierStart,
+/* 80 - P */ CharacterIdentifierStart,
+/* 81 - Q */ CharacterIdentifierStart,
+/* 82 - R */ CharacterIdentifierStart,
+/* 83 - S */ CharacterIdentifierStart,
+/* 84 - T */ CharacterIdentifierStart,
+/* 85 - U */ CharacterCaselessU,
+/* 86 - V */ CharacterIdentifierStart,
+/* 87 - W */ CharacterIdentifierStart,
+/* 88 - X */ CharacterIdentifierStart,
+/* 89 - Y */ CharacterIdentifierStart,
+/* 90 - Z */ CharacterIdentifierStart,
+/* 91 - [ */ CharacterOther,
+/* 92 - \ */ CharacterBackSlash,
+/* 93 - ] */ CharacterOther,
+/* 94 - ^ */ CharacterXor,
+/* 95 - _ */ CharacterIdentifierStart,
+/* 96 - ` */ CharacterOther,
+/* 97 - a */ CharacterIdentifierStart,
+/* 98 - b */ CharacterIdentifierStart,
+/* 99 - c */ CharacterIdentifierStart,
+/* 100 - d */ CharacterIdentifierStart,
+/* 101 - e */ CharacterIdentifierStart,
+/* 102 - f */ CharacterIdentifierStart,
+/* 103 - g */ CharacterIdentifierStart,
+/* 104 - h */ CharacterIdentifierStart,
+/* 105 - i */ CharacterIdentifierStart,
+/* 106 - j */ CharacterIdentifierStart,
+/* 107 - k */ CharacterIdentifierStart,
+/* 108 - l */ CharacterIdentifierStart,
+/* 109 - m */ CharacterIdentifierStart,
+/* 110 - n */ CharacterIdentifierStart,
+/* 111 - o */ CharacterIdentifierStart,
+/* 112 - p */ CharacterIdentifierStart,
+/* 113 - q */ CharacterIdentifierStart,
+/* 114 - r */ CharacterIdentifierStart,
+/* 115 - s */ CharacterIdentifierStart,
+/* 116 - t */ CharacterIdentifierStart,
+/* 117 - u */ CharacterCaselessU,
+/* 118 - v */ CharacterIdentifierStart,
+/* 119 - w */ CharacterIdentifierStart,
+/* 120 - x */ CharacterIdentifierStart,
+/* 121 - y */ CharacterIdentifierStart,
+/* 122 - z */ CharacterIdentifierStart,
+/* 123 - { */ CharacterEndConditionQuery,
+/* 124 - | */ CharacterVerticalBar,
+/* 125 - } */ CharacterOther,
+/* 126 - ~ */ CharacterTilde,
+/* 127 - Delete */ CharacterOther,
+};
+
+// Utility functions for the CSS tokenizer.
+
+template <typename CharacterType>
+static inline bool isCSSLetter(CharacterType character)
+{
+ return character >= 128 || typesOfASCIICharacters[character] <= CharacterDash;
+}
+
+template <typename CharacterType>
+static inline bool isCSSEscape(CharacterType character)
+{
+ return character >= ' ' && character != 127;
+}
+
+template <typename CharacterType>
+static inline bool isURILetter(CharacterType character)
+{
+ return (character >= '*' && character != 127) || (character >= '#' && character <= '&') || character == '!';
+}
+
+template <typename CharacterType>
+static inline bool isIdentifierStartAfterDash(CharacterType* currentCharacter)
+{
+ return isASCIIAlpha(currentCharacter[0]) || currentCharacter[0] == '_' || currentCharacter[0] >= 128
+ || (currentCharacter[0] == '\\' && isCSSEscape(currentCharacter[1]));
+}
+
+template <typename CharacterType>
+static inline bool isCustomPropertyIdentifier(CharacterType* currentCharacter)
+{
+ return isASCIIAlpha(currentCharacter[0]) || currentCharacter[0] == '_' || currentCharacter[0] >= 128
+ || (currentCharacter[0] == '\\' && isCSSEscape(currentCharacter[1]));
+}
+
+template <typename CharacterType>
+static inline bool isEqualToCSSIdentifier(CharacterType* cssString, const char* constantString)
+{
+ // Compare an character memory data with a zero terminated string.
+ do {
+ // The input must be part of an identifier if constantChar or constString
+ // contains '-'. Otherwise toASCIILowerUnchecked('\r') would be equal to '-'.
+ ASSERT((*constantString >= 'a' && *constantString <= 'z') || *constantString == '-');
+ ASSERT(*constantString != '-' || isCSSLetter(*cssString));
+ if (toASCIILowerUnchecked(*cssString++) != (*constantString++))
+ return false;
+ } while (*constantString);
+ return true;
+}
+
+template <typename CharacterType>
+static inline bool isEqualToCSSCaseSensitiveIdentifier(CharacterType* string, const char* constantString)
+{
+ do {
+ if (*string++ != *constantString++)
+ return false;
+ } while (*constantString);
+ return true;
+}
+
+template <typename CharacterType>
+static CharacterType* checkAndSkipEscape(CharacterType* currentCharacter)
+{
+ // Returns with 0, if escape check is failed. Otherwise
+ // it returns with the following character.
+ ASSERT(*currentCharacter == '\\');
+
+ ++currentCharacter;
+ if (!isCSSEscape(*currentCharacter))
+ return nullptr;
+
+ if (isASCIIHexDigit(*currentCharacter)) {
+ int length = 6;
+
+ do {
+ ++currentCharacter;
+ } while (isASCIIHexDigit(*currentCharacter) && --length);
+
+ // Optional space after the escape sequence.
+ if (isHTMLSpace(*currentCharacter))
+ ++currentCharacter;
+ return currentCharacter;
+ }
+ return currentCharacter + 1;
+}
+
+template <typename CharacterType>
+static inline CharacterType* skipWhiteSpace(CharacterType* currentCharacter)
+{
+ while (isHTMLSpace(*currentCharacter))
+ ++currentCharacter;
+ return currentCharacter;
+}
+
+// Main CSS tokenizer functions.
+
+template <>
+LChar* CSSParserString::characters<LChar>() const { return characters8(); }
+
+template <>
+UChar* CSSParserString::characters<UChar>() const { return characters16(); }
+
+template <>
+inline LChar*& CSSParser::currentCharacter<LChar>()
+{
+ return m_currentCharacter8;
+}
+
+template <>
+inline UChar*& CSSParser::currentCharacter<UChar>()
+{
+ return m_currentCharacter16;
+}
+
+UChar*& CSSParser::currentCharacter16()
+{
+ if (!m_currentCharacter16) {
+ m_dataStart16 = std::make_unique<UChar[]>(m_length);
+ m_currentCharacter16 = m_dataStart16.get();
+ }
+
+ return m_currentCharacter16;
+}
+
+template <>
+inline LChar* CSSParser::tokenStart<LChar>()
+{
+ return m_tokenStart.ptr8;
+}
+
+template <>
+inline UChar* CSSParser::tokenStart<UChar>()
+{
+ return m_tokenStart.ptr16;
+}
+
+CSSParser::Location CSSParser::currentLocation()
+{
+ Location location;
+ location.lineNumber = m_tokenStartLineNumber;
+ location.columnNumber = m_tokenStartColumnNumber;
+
+ ASSERT(location.lineNumber >= 0);
+ ASSERT(location.columnNumber >= 0);
+
+ if (location.lineNumber == m_sheetStartLineNumber)
+ location.columnNumber += m_sheetStartColumnNumber;
+
+ if (is8BitSource())
+ location.token.init(tokenStart<LChar>(), currentCharacter<LChar>() - tokenStart<LChar>());
+ else
+ location.token.init(tokenStart<UChar>(), currentCharacter<UChar>() - tokenStart<UChar>());
+
+ return location;
+}
+
+template <typename CharacterType>
+inline bool CSSParser::isIdentifierStart()
+{
+ // Check whether an identifier is started.
+ return isIdentifierStartAfterDash((*currentCharacter<CharacterType>() != '-') ? currentCharacter<CharacterType>() : currentCharacter<CharacterType>() + 1);
+}
+
+template <typename CharacterType>
+static inline CharacterType* checkAndSkipString(CharacterType* currentCharacter, int quote)
+{
+ // Returns with 0, if string check is failed. Otherwise
+ // it returns with the following character. This is necessary
+ // since we cannot revert escape sequences, thus strings
+ // must be validated before parsing.
+ while (true) {
+ if (UNLIKELY(*currentCharacter == quote)) {
+ // String parsing is successful.
+ return currentCharacter + 1;
+ }
+ if (UNLIKELY(!*currentCharacter)) {
+ // String parsing is successful up to end of input.
+ return currentCharacter;
+ }
+ if (UNLIKELY(*currentCharacter <= '\r' && (*currentCharacter == '\n' || (*currentCharacter | 0x1) == '\r'))) {
+ // String parsing is failed for character '\n', '\f' or '\r'.
+ return nullptr;
+ }
+
+ if (LIKELY(currentCharacter[0] != '\\'))
+ ++currentCharacter;
+ else if (currentCharacter[1] == '\n' || currentCharacter[1] == '\f')
+ currentCharacter += 2;
+ else if (currentCharacter[1] == '\r')
+ currentCharacter += currentCharacter[2] == '\n' ? 3 : 2;
+ else {
+ currentCharacter = checkAndSkipEscape(currentCharacter);
+ if (!currentCharacter)
+ return nullptr;
+ }
+ }
+}
+
+template <typename CharacterType>
+unsigned CSSParser::parseEscape(CharacterType*& src)
+{
+ ASSERT(*src == '\\' && isCSSEscape(src[1]));
+
+ unsigned unicode = 0;
+
+ ++src;
+ if (isASCIIHexDigit(*src)) {
+
+ int length = 6;
+
+ do {
+ unicode = (unicode << 4) + toASCIIHexValue(*src++);
+ } while (--length && isASCIIHexDigit(*src));
+
+ if (unicode > UCHAR_MAX_VALUE)
+ unicode = replacementCharacter;
+
+ // Optional space after the escape sequence.
+ if (isHTMLSpace(*src))
+ ++src;
+
+ return unicode;
+ }
+
+ return *currentCharacter<CharacterType>()++;
+}
+
+template <>
+inline void CSSParser::UnicodeToChars<LChar>(LChar*& result, unsigned unicode)
+{
+ ASSERT(unicode <= 0xff);
+ *result = unicode;
+
+ ++result;
+}
+
+template <>
+inline void CSSParser::UnicodeToChars<UChar>(UChar*& result, unsigned unicode)
+{
+ // Replace unicode with a surrogate pairs when it is bigger than 0xffff
+ if (U16_LENGTH(unicode) == 2) {
+ *result++ = U16_LEAD(unicode);
+ *result = U16_TRAIL(unicode);
+ } else
+ *result = unicode;
+
+ ++result;
+}
+
+template <typename SrcCharacterType, typename DestCharacterType>
+inline bool CSSParser::parseIdentifierInternal(SrcCharacterType*& src, DestCharacterType*& result, bool& hasEscape)
+{
+ hasEscape = false;
+ do {
+ if (LIKELY(*src != '\\'))
+ *result++ = *src++;
+ else {
+ hasEscape = true;
+ SrcCharacterType* savedEscapeStart = src;
+ unsigned unicode = parseEscape<SrcCharacterType>(src);
+ if (unicode > 0xff && sizeof(DestCharacterType) == 1) {
+ src = savedEscapeStart;
+ return false;
+ }
+ UnicodeToChars(result, unicode);
+ }
+ } while (isCSSLetter(src[0]) || (src[0] == '\\' && isCSSEscape(src[1])));
+
+ return true;
+}
+
+template <typename CharacterType>
+inline void CSSParser::parseIdentifier(CharacterType*& result, CSSParserString& resultString, bool& hasEscape)
+{
+ CharacterType* start = currentCharacter<CharacterType>();
+ if (UNLIKELY(!parseIdentifierInternal(currentCharacter<CharacterType>(), result, hasEscape))) {
+ // Found an escape we couldn't handle with 8 bits, copy what has been recognized and continue
+ ASSERT(is8BitSource());
+ UChar*& result16 = currentCharacter16();
+ UChar* start16 = result16;
+ int i = 0;
+ for (; i < result - start; ++i)
+ result16[i] = start[i];
+
+ result16 += i;
+
+ parseIdentifierInternal(currentCharacter<CharacterType>(), result16, hasEscape);
+
+ result += result16 - start16;
+ resultString.init(start16, result16 - start16);
+
+ return;
+ }
+
+ resultString.init(start, result - start);
+}
+
+template <typename SrcCharacterType, typename DestCharacterType>
+inline bool CSSParser::parseStringInternal(SrcCharacterType*& src, DestCharacterType*& result, UChar quote)
+{
+ while (true) {
+ if (UNLIKELY(*src == quote)) {
+ // String parsing is done.
+ ++src;
+ return true;
+ }
+ if (UNLIKELY(!*src)) {
+ // String parsing is done, but don't advance pointer if at the end of input.
+ return true;
+ }
+ ASSERT(*src > '\r' || (*src < '\n' && *src) || *src == '\v');
+
+ if (LIKELY(src[0] != '\\'))
+ *result++ = *src++;
+ else if (src[1] == '\n' || src[1] == '\f')
+ src += 2;
+ else if (src[1] == '\r')
+ src += src[2] == '\n' ? 3 : 2;
+ else {
+ SrcCharacterType* savedEscapeStart = src;
+ unsigned unicode = parseEscape<SrcCharacterType>(src);
+ if (unicode > 0xff && sizeof(DestCharacterType) == 1) {
+ src = savedEscapeStart;
+ return false;
+ }
+ UnicodeToChars(result, unicode);
+ }
+ }
+
+ return true;
+}
+
+template <typename CharacterType>
+inline void CSSParser::parseString(CharacterType*& result, CSSParserString& resultString, UChar quote)
+{
+ CharacterType* start = currentCharacter<CharacterType>();
+
+ if (UNLIKELY(!parseStringInternal(currentCharacter<CharacterType>(), result, quote))) {
+ // Found an escape we couldn't handle with 8 bits, copy what has been recognized and continue
+ ASSERT(is8BitSource());
+ UChar*& result16 = currentCharacter16();
+ UChar* start16 = result16;
+ int i = 0;
+ for (; i < result - start; ++i)
+ result16[i] = start[i];
+
+ result16 += i;
+
+ parseStringInternal(currentCharacter<CharacterType>(), result16, quote);
+
+ resultString.init(start16, result16 - start16);
+ return;
+ }
+
+ resultString.init(start, result - start);
+}
+
+template <typename CharacterType>
+inline bool CSSParser::findURI(CharacterType*& start, CharacterType*& end, UChar& quote)
+{
+ start = skipWhiteSpace(currentCharacter<CharacterType>());
+
+ if (*start == '"' || *start == '\'') {
+ quote = *start++;
+ end = checkAndSkipString(start, quote);
+ if (!end)
+ return false;
+ } else {
+ quote = 0;
+ end = start;
+ while (isURILetter(*end)) {
+ if (LIKELY(*end != '\\'))
+ ++end;
+ else {
+ end = checkAndSkipEscape(end);
+ if (!end)
+ return false;
+ }
+ }
+ }
+
+ end = skipWhiteSpace(end);
+ if (*end != ')')
+ return false;
+
+ return true;
+}
+
+template <typename SrcCharacterType, typename DestCharacterType>
+inline bool CSSParser::parseURIInternal(SrcCharacterType*& src, DestCharacterType*& dest, UChar quote)
+{
+ if (quote) {
+ ASSERT(quote == '"' || quote == '\'');
+ return parseStringInternal(src, dest, quote);
+ }
+
+ while (isURILetter(*src)) {
+ if (LIKELY(*src != '\\'))
+ *dest++ = *src++;
+ else {
+ unsigned unicode = parseEscape<SrcCharacterType>(src);
+ if (unicode > 0xff && sizeof(SrcCharacterType) == 1)
+ return false;
+ UnicodeToChars(dest, unicode);
+ }
+ }
+
+ return true;
+}
+
+template <typename CharacterType>
+inline void CSSParser::parseURI(CSSParserString& string)
+{
+ CharacterType* uriStart;
+ CharacterType* uriEnd;
+ UChar quote;
+ if (!findURI(uriStart, uriEnd, quote))
+ return;
+
+ CharacterType* dest = currentCharacter<CharacterType>() = uriStart;
+ if (LIKELY(parseURIInternal(currentCharacter<CharacterType>(), dest, quote)))
+ string.init(uriStart, dest - uriStart);
+ else {
+ // An escape sequence was encountered that can't be stored in 8 bits.
+ // Reset the current character to the start of the URI and re-parse with
+ // a 16-bit destination.
+ ASSERT(is8BitSource());
+ UChar* uriStart16 = currentCharacter16();
+ currentCharacter<CharacterType>() = uriStart;
+ bool result = parseURIInternal(currentCharacter<CharacterType>(), currentCharacter16(), quote);
+ ASSERT_UNUSED(result, result);
+ string.init(uriStart16, currentCharacter16() - uriStart16);
+ }
+
+ currentCharacter<CharacterType>() = uriEnd + 1;
+ m_token = URI;
+}
+
+template <typename CharacterType>
+inline bool CSSParser::parseUnicodeRange()
+{
+ CharacterType* character = currentCharacter<CharacterType>() + 1;
+ int length = 6;
+ ASSERT(*currentCharacter<CharacterType>() == '+');
+
+ while (isASCIIHexDigit(*character) && length) {
+ ++character;
+ --length;
+ }
+
+ if (length && *character == '?') {
+ // At most 5 hex digit followed by a question mark.
+ do {
+ ++character;
+ --length;
+ } while (*character == '?' && length);
+ currentCharacter<CharacterType>() = character;
+ return true;
+ }
+
+ if (length < 6) {
+ // At least one hex digit.
+ if (character[0] == '-' && isASCIIHexDigit(character[1])) {
+ // Followed by a dash and a hex digit.
+ ++character;
+ length = 6;
+ do {
+ ++character;
+ } while (--length && isASCIIHexDigit(*character));
+ }
+ currentCharacter<CharacterType>() = character;
+ return true;
+ }
+ return false;
+}
+
+template <typename CharacterType>
+bool CSSParser::parseNthChild()
+{
+ CharacterType* character = currentCharacter<CharacterType>();
+
+ while (isASCIIDigit(*character))
+ ++character;
+ if (isASCIIAlphaCaselessEqual(*character, 'n')) {
+ currentCharacter<CharacterType>() = character + 1;
+ return true;
+ }
+ return false;
+}
+
+template <typename CharacterType>
+bool CSSParser::parseNthChildExtra()
+{
+ CharacterType* character = skipWhiteSpace(currentCharacter<CharacterType>());
+ if (*character != '+' && *character != '-')
+ return false;
+
+ character = skipWhiteSpace(character + 1);
+ if (!isASCIIDigit(*character))
+ return false;
+
+ do {
+ ++character;
+ } while (isASCIIDigit(*character));
+
+ currentCharacter<CharacterType>() = character;
+ return true;
+}
+
+template <typename CharacterType>
+inline bool CSSParser::detectFunctionTypeToken(int length)
+{
+ ASSERT(length > 0);
+ CharacterType* name = tokenStart<CharacterType>();
+
+ switch (length) {
+ case 3:
+ if (isASCIIAlphaCaselessEqual(name[0], 'n') && isASCIIAlphaCaselessEqual(name[1], 'o') && isASCIIAlphaCaselessEqual(name[2], 't')) {
+ m_token = NOTFUNCTION;
+ return true;
+ }
+ if (isASCIIAlphaCaselessEqual(name[0], 'u') && isASCIIAlphaCaselessEqual(name[1], 'r') && isASCIIAlphaCaselessEqual(name[2], 'l')) {
+ m_token = URI;
+ return true;
+ }
+ if (isASCIIAlphaCaselessEqual(name[0], 'v') && isASCIIAlphaCaselessEqual(name[1], 'a') && isASCIIAlphaCaselessEqual(name[2], 'r')) {
+ m_token = VARFUNCTION;
+ return true;
+ }
+#if ENABLE(VIDEO_TRACK)
+ if (isASCIIAlphaCaselessEqual(name[0], 'c') && isASCIIAlphaCaselessEqual(name[1], 'u') && isASCIIAlphaCaselessEqual(name[2], 'e')) {
+ m_token = CUEFUNCTION;
+ return true;
+ }
+#endif
+#if ENABLE(CSS_SELECTORS_LEVEL4)
+ if (isASCIIAlphaCaselessEqual(name[0], 'd') && isASCIIAlphaCaselessEqual(name[1], 'i') && isASCIIAlphaCaselessEqual(name[2], 'r')) {
+ m_token = DIRFUNCTION;
+ return true;
+ }
+#endif
+ return false;
+
+ case 4:
+ if (isEqualToCSSIdentifier(name, "calc")) {
+ m_token = CALCFUNCTION;
+ return true;
+ }
+ if (isEqualToCSSIdentifier(name, "lang")) {
+ m_token = LANGFUNCTION;
+ return true;
+ }
+#if ENABLE(CSS_SELECTORS_LEVEL4)
+ if (isEqualToCSSIdentifier(name, "role")) {
+ m_token = ROLEFUNCTION;
+ return true;
+ }
+#endif
+ if (isEqualToCSSIdentifier(name, "host")) {
+ m_token = HOSTFUNCTION;
+ return true;
+ }
+ return false;
+
+ case 7:
+ if (isEqualToCSSIdentifier(name, "matches")) {
+ m_token = MATCHESFUNCTION;
+ return true;
+ }
+ if (isEqualToCSSIdentifier(name, "slotted")) {
+ m_token = SLOTTEDFUNCTION;
+ return true;
+ }
+ return false;
+
+ case 9:
+ if (isEqualToCSSIdentifier(name, "nth-child")) {
+ m_token = NTHCHILDFUNCTIONS;
+ m_parsingMode = NthChildMode;
+ return true;
+ }
+ return false;
+
+ case 11:
+ if (isEqualToCSSIdentifier(name, "nth-of-type")) {
+ m_parsingMode = NthChildMode;
+ return true;
+ }
+ return false;
+
+ case 14:
+ if (isEqualToCSSIdentifier(name, "nth-last-child")) {
+ m_token = NTHCHILDFUNCTIONS;
+ m_parsingMode = NthChildMode;
+ return true;
+ }
+ return false;
+
+ case 16:
+ if (isEqualToCSSIdentifier(name, "nth-last-of-type")) {
+ m_parsingMode = NthChildMode;
+ return true;
+ }
+ return false;
+ }
+
+ return false;
+}
+
+template <typename CharacterType>
+inline void CSSParser::detectMediaQueryToken(int length)
+{
+ ASSERT(m_parsingMode == MediaQueryMode);
+ CharacterType* name = tokenStart<CharacterType>();
+
+ if (length == 3) {
+ if (isASCIIAlphaCaselessEqual(name[0], 'a') && isASCIIAlphaCaselessEqual(name[1], 'n') && isASCIIAlphaCaselessEqual(name[2], 'd'))
+ m_token = MEDIA_AND;
+ else if (isASCIIAlphaCaselessEqual(name[0], 'n') && isASCIIAlphaCaselessEqual(name[1], 'o') && isASCIIAlphaCaselessEqual(name[2], 't'))
+ m_token = MEDIA_NOT;
+ } else if (length == 4) {
+ if (isASCIIAlphaCaselessEqual(name[0], 'o') && isASCIIAlphaCaselessEqual(name[1], 'n')
+ && isASCIIAlphaCaselessEqual(name[2], 'l') && isASCIIAlphaCaselessEqual(name[3], 'y'))
+ m_token = MEDIA_ONLY;
+ }
+}
+
+template <typename CharacterType>
+inline void CSSParser::detectNumberToken(CharacterType* type, int length)
+{
+ ASSERT(length > 0);
+
+ switch (toASCIILowerUnchecked(type[0])) {
+ case 'c':
+ if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'm'))
+ m_token = CMS;
+ else if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'h'))
+ m_token = CHS;
+ return;
+
+ case 'd':
+ if (length == 3 && isASCIIAlphaCaselessEqual(type[1], 'e') && isASCIIAlphaCaselessEqual(type[2], 'g'))
+ m_token = DEGS;
+#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
+ else if (length > 2 && isASCIIAlphaCaselessEqual(type[1], 'p')) {
+ if (length == 4) {
+ // There is a discussion about the name of this unit on www-style.
+ // Keep this compile time guard in place until that is resolved.
+ // http://lists.w3.org/Archives/Public/www-style/2012May/0915.html
+ if (isASCIIAlphaCaselessEqual(type[2], 'p') && isASCIIAlphaCaselessEqual(type[3], 'x'))
+ m_token = DPPX;
+ else if (isASCIIAlphaCaselessEqual(type[2], 'c') && isASCIIAlphaCaselessEqual(type[3], 'm'))
+ m_token = DPCM;
+ } else if (length == 3 && isASCIIAlphaCaselessEqual(type[2], 'i'))
+ m_token = DPI;
+ }
+#endif
+ return;
+
+ case 'e':
+ if (length == 2) {
+ if (isASCIIAlphaCaselessEqual(type[1], 'm'))
+ m_token = EMS;
+ else if (isASCIIAlphaCaselessEqual(type[1], 'x'))
+ m_token = EXS;
+ }
+ return;
+
+ case 'f':
+ if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'r'))
+ m_token = FR;
+ return;
+ case 'g':
+ if (length == 4 && isASCIIAlphaCaselessEqual(type[1], 'r')
+ && isASCIIAlphaCaselessEqual(type[2], 'a') && isASCIIAlphaCaselessEqual(type[3], 'd'))
+ m_token = GRADS;
+ return;
+
+ case 'h':
+ if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'z'))
+ m_token = HERTZ;
+ return;
+
+ case 'i':
+ if (length == 2 && isASCIIAlphaCaselessEqual(type[1], 'n'))
+ m_token = INS;
+ return;
+
+ case 'k':
+ if (length == 3 && isASCIIAlphaCaselessEqual(type[1], 'h') && isASCIIAlphaCaselessEqual(type[2], 'z'))
+ m_token = KHERTZ;
+ return;
+
+ case 'm':
+ if (length == 2) {
+ if (isASCIIAlphaCaselessEqual(type[1], 'm'))
+ m_token = MMS;
+ else if (isASCIIAlphaCaselessEqual(type[1], 's'))
+ m_token = MSECS;
+ }
+ return;
+
+ case 'p':
+ if (length == 2) {
+ if (isASCIIAlphaCaselessEqual(type[1], 'x'))
+ m_token = PXS;
+ else if (isASCIIAlphaCaselessEqual(type[1], 't'))
+ m_token = PTS;
+ else if (isASCIIAlphaCaselessEqual(type[1], 'c'))
+ m_token = PCS;
+ }
+ return;
+
+ case 'r':
+ if (length == 3) {
+ if (isASCIIAlphaCaselessEqual(type[1], 'a') && isASCIIAlphaCaselessEqual(type[2], 'd'))
+ m_token = RADS;
+ else if (isASCIIAlphaCaselessEqual(type[1], 'e') && isASCIIAlphaCaselessEqual(type[2], 'm'))
+ m_token = REMS;
+ }
+ return;
+
+ case 's':
+ if (length == 1)
+ m_token = SECS;
+ return;
+
+ case 't':
+ if (length == 4 && isASCIIAlphaCaselessEqual(type[1], 'u')
+ && isASCIIAlphaCaselessEqual(type[2], 'r') && isASCIIAlphaCaselessEqual(type[3], 'n'))
+ m_token = TURNS;
+ return;
+ case 'v':
+ if (length == 2) {
+ if (isASCIIAlphaCaselessEqual(type[1], 'w'))
+ m_token = VW;
+ else if (isASCIIAlphaCaselessEqual(type[1], 'h'))
+ m_token = VH;
+ } else if (length == 4 && isASCIIAlphaCaselessEqual(type[1], 'm')) {
+ if (isASCIIAlphaCaselessEqual(type[2], 'i') && isASCIIAlphaCaselessEqual(type[3], 'n'))
+ m_token = VMIN;
+ else if (isASCIIAlphaCaselessEqual(type[2], 'a') && isASCIIAlphaCaselessEqual(type[3], 'x'))
+ m_token = VMAX;
+ }
+ return;
+
+ default:
+ if (type[0] == '_' && length == 5 && type[1] == '_' && isASCIIAlphaCaselessEqual(type[2], 'q')
+ && isASCIIAlphaCaselessEqual(type[3], 'e') && isASCIIAlphaCaselessEqual(type[4], 'm'))
+ m_token = QEMS;
+ return;
+ }
+}
+
+template <typename CharacterType>
+inline void CSSParser::detectDashToken(int length)
+{
+ CharacterType* name = tokenStart<CharacterType>();
+
+ if (length == 11) {
+ if (isASCIIAlphaCaselessEqual(name[10], 'y') && isEqualToCSSIdentifier(name + 1, "webkit-an"))
+ m_token = ANYFUNCTION;
+ else if (isASCIIAlphaCaselessEqual(name[10], 'n') && isEqualToCSSIdentifier(name + 1, "webkit-mi"))
+ m_token = MINFUNCTION;
+ else if (isASCIIAlphaCaselessEqual(name[10], 'x') && isEqualToCSSIdentifier(name + 1, "webkit-ma"))
+ m_token = MAXFUNCTION;
+ } else if (length == 12 && isEqualToCSSIdentifier(name + 1, "webkit-calc"))
+ m_token = CALCFUNCTION;
+}
+
+template <typename CharacterType>
+inline void CSSParser::detectAtToken(int length, bool hasEscape)
+{
+ CharacterType* name = tokenStart<CharacterType>();
+ ASSERT(name[0] == '@' && length >= 2);
+
+ // charset, font-face, import, media, namespace, page, supports,
+ // -webkit-keyframes, and -webkit-mediaquery are not affected by hasEscape.
+ switch (toASCIILowerUnchecked(name[1])) {
+ case 'b':
+ if (hasEscape)
+ return;
+
+ switch (length) {
+ case 12:
+ if (isEqualToCSSIdentifier(name + 2, "ottom-left"))
+ m_token = BOTTOMLEFT_SYM;
+ return;
+
+ case 13:
+ if (isEqualToCSSIdentifier(name + 2, "ottom-right"))
+ m_token = BOTTOMRIGHT_SYM;
+ return;
+
+ case 14:
+ if (isEqualToCSSIdentifier(name + 2, "ottom-center"))
+ m_token = BOTTOMCENTER_SYM;
+ return;
+
+ case 19:
+ if (isEqualToCSSIdentifier(name + 2, "ottom-left-corner"))
+ m_token = BOTTOMLEFTCORNER_SYM;
+ return;
+
+ case 20:
+ if (isEqualToCSSIdentifier(name + 2, "ottom-right-corner"))
+ m_token = BOTTOMRIGHTCORNER_SYM;
+ return;
+ }
+ return;
+
+ case 'c':
+ if (length == 8 && isEqualToCSSIdentifier(name + 2, "harset"))
+ m_token = CHARSET_SYM;
+ return;
+
+ case 'f':
+ if (length == 10 && isEqualToCSSIdentifier(name + 2, "ont-face"))
+ m_token = FONT_FACE_SYM;
+ return;
+
+ case 'i':
+ if (length == 7 && isEqualToCSSIdentifier(name + 2, "mport")) {
+ m_parsingMode = MediaQueryMode;
+ m_token = IMPORT_SYM;
+ }
+ return;
+
+ case 'k':
+ if (length == 10 && isEqualToCSSIdentifier(name + 2, "eyframes"))
+ m_token = KEYFRAMES_SYM;
+ else if (length == 14 && !hasEscape && isEqualToCSSIdentifier(name + 2, "eyframe-rule"))
+ m_token = KEYFRAME_RULE_SYM;
+ return;
+
+ case 'l':
+ if (hasEscape)
+ return;
+
+ if (length == 9) {
+ if (isEqualToCSSIdentifier(name + 2, "eft-top"))
+ m_token = LEFTTOP_SYM;
+ } else if (length == 12) {
+ // Checking the last character first could further reduce the possibile cases.
+ if (isASCIIAlphaCaselessEqual(name[11], 'e') && isEqualToCSSIdentifier(name + 2, "eft-middl"))
+ m_token = LEFTMIDDLE_SYM;
+ else if (isASCIIAlphaCaselessEqual(name[11], 'm') && isEqualToCSSIdentifier(name + 2, "eft-botto"))
+ m_token = LEFTBOTTOM_SYM;
+ }
+ return;
+
+ case 'm':
+ if (length == 6 && isEqualToCSSIdentifier(name + 2, "edia")) {
+ m_parsingMode = MediaQueryMode;
+ m_token = MEDIA_SYM;
+ }
+ return;
+
+ case 'n':
+ if (length == 10 && isEqualToCSSIdentifier(name + 2, "amespace"))
+ m_token = NAMESPACE_SYM;
+ return;
+
+ case 'p':
+ if (length == 5 && isEqualToCSSIdentifier(name + 2, "age"))
+ m_token = PAGE_SYM;
+ return;
+
+ case 'r':
+ if (hasEscape)
+ return;
+
+ if (length == 10) {
+ if (isEqualToCSSIdentifier(name + 2, "ight-top"))
+ m_token = RIGHTTOP_SYM;
+ } else if (length == 13) {
+ // Checking the last character first could further reduce the possibile cases.
+ if (isASCIIAlphaCaselessEqual(name[12], 'e') && isEqualToCSSIdentifier(name + 2, "ight-middl"))
+ m_token = RIGHTMIDDLE_SYM;
+ else if (isASCIIAlphaCaselessEqual(name[12], 'm') && isEqualToCSSIdentifier(name + 2, "ight-botto"))
+ m_token = RIGHTBOTTOM_SYM;
+ }
+ return;
+
+ case 's':
+ if (length == 9 && isEqualToCSSIdentifier(name + 2, "upports")) {
+ m_parsingMode = SupportsMode;
+ m_token = SUPPORTS_SYM;
+ }
+ return;
+
+ case 't':
+ if (hasEscape)
+ return;
+
+ switch (length) {
+ case 9:
+ if (isEqualToCSSIdentifier(name + 2, "op-left"))
+ m_token = TOPLEFT_SYM;
+ return;
+
+ case 10:
+ if (isEqualToCSSIdentifier(name + 2, "op-right"))
+ m_token = TOPRIGHT_SYM;
+ return;
+
+ case 11:
+ if (isEqualToCSSIdentifier(name + 2, "op-center"))
+ m_token = TOPCENTER_SYM;
+ return;
+
+ case 16:
+ if (isEqualToCSSIdentifier(name + 2, "op-left-corner"))
+ m_token = TOPLEFTCORNER_SYM;
+ return;
+
+ case 17:
+ if (isEqualToCSSIdentifier(name + 2, "op-right-corner"))
+ m_token = TOPRIGHTCORNER_SYM;
+ return;
+ }
+ return;
+
+ case '-':
+ switch (length) {
+ case 13:
+ if (!hasEscape && isEqualToCSSIdentifier(name + 2, "webkit-rule"))
+ m_token = WEBKIT_RULE_SYM;
+ return;
+
+ case 14:
+ if (hasEscape)
+ return;
+
+ // Checking the last character first could further reduce the possibile cases.
+ if (isASCIIAlphaCaselessEqual(name[13], 's') && isEqualToCSSIdentifier(name + 2, "webkit-decl"))
+ m_token = WEBKIT_DECLS_SYM;
+ else if (isASCIIAlphaCaselessEqual(name[13], 'e') && isEqualToCSSIdentifier(name + 2, "webkit-valu"))
+ m_token = WEBKIT_VALUE_SYM;
+ return;
+
+ case 15:
+ if (hasEscape)
+ return;
+
+#if ENABLE(CSS_REGIONS)
+ if (isASCIIAlphaCaselessEqual(name[14], 'n') && isEqualToCSSIdentifier(name + 2, "webkit-regio"))
+ m_token = WEBKIT_REGION_RULE_SYM;
+#endif
+ return;
+
+ case 17:
+ if (hasEscape)
+ return;
+
+ if (isASCIIAlphaCaselessEqual(name[16], 'r') && isEqualToCSSIdentifier(name + 2, "webkit-selecto"))
+ m_token = WEBKIT_SELECTOR_SYM;
+#if ENABLE(CSS_DEVICE_ADAPTATION)
+ else if (isASCIIAlphaCaselessEqual(name[16], 't') && isEqualToCSSIdentifier(name + 2, "webkit-viewpor"))
+ m_token = WEBKIT_VIEWPORT_RULE_SYM;
+#endif
+ return;
+
+ case 18:
+ if (isEqualToCSSIdentifier(name + 2, "webkit-keyframes"))
+ m_token = KEYFRAMES_SYM;
+ else if (isEqualToCSSIdentifier(name + 2, "webkit-sizesattr"))
+ m_token = WEBKIT_SIZESATTR_SYM;
+ return;
+
+ case 19:
+ if (isEqualToCSSIdentifier(name + 2, "webkit-mediaquery")) {
+ m_parsingMode = MediaQueryMode;
+ m_token = WEBKIT_MEDIAQUERY_SYM;
+ }
+ return;
+
+ case 22:
+ if (!hasEscape && isEqualToCSSIdentifier(name + 2, "webkit-keyframe-rule"))
+ m_token = KEYFRAME_RULE_SYM;
+ return;
+
+ case 27:
+ if (isEqualToCSSIdentifier(name + 2, "webkit-supports-condition")) {
+ m_parsingMode = SupportsMode;
+ m_token = WEBKIT_SUPPORTS_CONDITION_SYM;
+ }
+ return;
+ }
+ }
+}
+
+template <typename CharacterType>
+inline void CSSParser::detectSupportsToken(int length)
+{
+ ASSERT(m_parsingMode == SupportsMode);
+ CharacterType* name = tokenStart<CharacterType>();
+
+ if (length == 2) {
+ if (isASCIIAlphaCaselessEqual(name[0], 'o') && isASCIIAlphaCaselessEqual(name[1], 'r'))
+ m_token = SUPPORTS_OR;
+ } else if (length == 3) {
+ if (isASCIIAlphaCaselessEqual(name[0], 'a') && isASCIIAlphaCaselessEqual(name[1], 'n') && isASCIIAlphaCaselessEqual(name[2], 'd'))
+ m_token = SUPPORTS_AND;
+ else if (isASCIIAlphaCaselessEqual(name[0], 'n') && isASCIIAlphaCaselessEqual(name[1], 'o') && isASCIIAlphaCaselessEqual(name[2], 't'))
+ m_token = SUPPORTS_NOT;
+ }
+}
+
+template <typename SrcCharacterType>
+int CSSParser::realLex(void* yylvalWithoutType)
+{
+ YYSTYPE* yylval = static_cast<YYSTYPE*>(yylvalWithoutType);
+ // Write pointer for the next character.
+ SrcCharacterType* result;
+ CSSParserString resultString;
+ bool hasEscape;
+
+ // The input buffer is terminated by a \0 character, so
+ // it is safe to read one character ahead of a known non-null.
+#ifndef NDEBUG
+ // In debug we check with an ASSERT that the length is > 0 for string types.
+ yylval->string.clear();
+#endif
+
+restartAfterComment:
+ result = currentCharacter<SrcCharacterType>();
+ setTokenStart(result);
+ m_tokenStartLineNumber = m_lineNumber;
+ m_tokenStartColumnNumber = tokenStartOffset() - m_columnOffsetForLine;
+ m_token = *currentCharacter<SrcCharacterType>();
+ ++currentCharacter<SrcCharacterType>();
+
+ switch ((m_token <= 127) ? typesOfASCIICharacters[m_token] : CharacterIdentifierStart) {
+ case CharacterCaselessU:
+ if (UNLIKELY(*currentCharacter<SrcCharacterType>() == '+')) {
+ if (parseUnicodeRange<SrcCharacterType>()) {
+ m_token = UNICODERANGE;
+ yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
+ break;
+ }
+ }
+ FALLTHROUGH; // To CharacterIdentifierStart.
+
+ case CharacterIdentifierStart:
+ --currentCharacter<SrcCharacterType>();
+ parseIdentifier(result, yylval->string, hasEscape);
+ m_token = IDENT;
+
+ if (UNLIKELY(*currentCharacter<SrcCharacterType>() == '(')) {
+ if (m_parsingMode == SupportsMode && !hasEscape) {
+ detectSupportsToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
+ if (m_token != IDENT)
+ break;
+ }
+ m_token = FUNCTION;
+ bool shouldSkipParenthesis = true;
+ if (!hasEscape) {
+ bool detected = detectFunctionTypeToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
+ if (!detected && m_parsingMode == MediaQueryMode) {
+ // ... and(max-width: 480px) ... looks like a function, but in fact it is not,
+ // so run more detection code in the MediaQueryMode.
+ detectMediaQueryToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
+ shouldSkipParenthesis = false;
+ }
+ }
+
+ if (LIKELY(shouldSkipParenthesis)) {
+ ++currentCharacter<SrcCharacterType>();
+ ++result;
+ ++yylval->string.m_length;
+ }
+
+ if (token() == URI) {
+ m_token = FUNCTION;
+ // Check whether it is really an URI.
+ if (yylval->string.is8Bit())
+ parseURI<LChar>(yylval->string);
+ else
+ parseURI<UChar>(yylval->string);
+ }
+ } else if (UNLIKELY(m_parsingMode != NormalMode) && !hasEscape) {
+ if (m_parsingMode == MediaQueryMode)
+ detectMediaQueryToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
+ else if (m_parsingMode == SupportsMode)
+ detectSupportsToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
+ else if (m_parsingMode == NthChildMode && isASCIIAlphaCaselessEqual(tokenStart<SrcCharacterType>()[0], 'n')) {
+ if (result - tokenStart<SrcCharacterType>() == 1) {
+ // String "n" is IDENT but "n+1" is NTH.
+ if (parseNthChildExtra<SrcCharacterType>()) {
+ m_token = NTH;
+ yylval->string.m_length = currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>();
+ }
+ } else if (result - tokenStart<SrcCharacterType>() >= 2 && tokenStart<SrcCharacterType>()[1] == '-') {
+ // String "n-" is IDENT but "n-1" is NTH.
+ // Set currentCharacter to '-' to continue parsing.
+ SrcCharacterType* nextCharacter = result;
+ currentCharacter<SrcCharacterType>() = tokenStart<SrcCharacterType>() + 1;
+ if (parseNthChildExtra<SrcCharacterType>()) {
+ m_token = NTH;
+ yylval->string.setLength(currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
+ } else {
+ // Revert the change to currentCharacter if unsuccessful.
+ currentCharacter<SrcCharacterType>() = nextCharacter;
+ }
+ }
+ }
+ }
+ if (m_parsingMode == NthChildMode && m_token == IDENT && yylval->string.length() == 2 && equalLettersIgnoringASCIICase(yylval->string, "of")) {
+ m_parsingMode = NormalMode;
+ m_token = NTHCHILDSELECTORSEPARATOR;
+ }
+ break;
+
+ case CharacterDot:
+ if (!isASCIIDigit(currentCharacter<SrcCharacterType>()[0]))
+ break;
+ FALLTHROUGH; // To CharacterNumber.
+
+ case CharacterNumber: {
+ bool dotSeen = (m_token == '.');
+
+ while (true) {
+ if (!isASCIIDigit(currentCharacter<SrcCharacterType>()[0])) {
+ // Only one dot is allowed for a number,
+ // and it must be followed by a digit.
+ if (currentCharacter<SrcCharacterType>()[0] != '.' || dotSeen || !isASCIIDigit(currentCharacter<SrcCharacterType>()[1]))
+ break;
+ dotSeen = true;
+ }
+ ++currentCharacter<SrcCharacterType>();
+ }
+
+ if (UNLIKELY(m_parsingMode == NthChildMode) && !dotSeen && isASCIIAlphaCaselessEqual(*currentCharacter<SrcCharacterType>(), 'n')) {
+ // "[0-9]+n" is always an NthChild.
+ ++currentCharacter<SrcCharacterType>();
+ parseNthChildExtra<SrcCharacterType>();
+ m_token = NTH;
+ yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
+ break;
+ }
+
+ // Use SVG parser for numbers on SVG presentation attributes.
+ if (m_context.mode == SVGAttributeMode) {
+ // We need to take care of units like 'em' or 'ex'.
+ SrcCharacterType* character = currentCharacter<SrcCharacterType>();
+ if (isASCIIAlphaCaselessEqual(*character, 'e')) {
+ ASSERT(character - tokenStart<SrcCharacterType>() > 0);
+ ++character;
+ if (*character == '-' || *character == '+' || isASCIIDigit(*character)) {
+ ++character;
+ while (isASCIIDigit(*character))
+ ++character;
+ // Use FLOATTOKEN if the string contains exponents.
+ dotSeen = true;
+ currentCharacter<SrcCharacterType>() = character;
+ }
+ }
+ if (!parseSVGNumber(tokenStart<SrcCharacterType>(), character - tokenStart<SrcCharacterType>(), yylval->number))
+ break;
+ } else
+ yylval->number = charactersToDouble(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
+
+ // Type of the function.
+ if (isIdentifierStart<SrcCharacterType>()) {
+ SrcCharacterType* type = currentCharacter<SrcCharacterType>();
+ result = currentCharacter<SrcCharacterType>();
+
+ parseIdentifier(result, resultString, hasEscape);
+
+ m_token = DIMEN;
+ if (!hasEscape)
+ detectNumberToken(type, currentCharacter<SrcCharacterType>() - type);
+
+ if (m_token == DIMEN) {
+ // The decoded number is overwritten, but this is intentional.
+ yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
+ }
+ } else if (*currentCharacter<SrcCharacterType>() == '%') {
+ // Although the CSS grammar says {num}% we follow
+ // webkit at the moment which uses {num}%+.
+ do {
+ ++currentCharacter<SrcCharacterType>();
+ } while (*currentCharacter<SrcCharacterType>() == '%');
+ m_token = PERCENTAGE;
+ } else
+ m_token = dotSeen ? FLOATTOKEN : INTEGER;
+ break;
+ }
+
+ case CharacterDash:
+ if (isIdentifierStartAfterDash(currentCharacter<SrcCharacterType>())) {
+ --currentCharacter<SrcCharacterType>();
+ parseIdentifier(result, resultString, hasEscape);
+ m_token = IDENT;
+
+ if (*currentCharacter<SrcCharacterType>() == '(') {
+ m_token = FUNCTION;
+ if (!hasEscape)
+ detectDashToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>());
+ ++currentCharacter<SrcCharacterType>();
+ ++result;
+ } else if (UNLIKELY(m_parsingMode == NthChildMode) && !hasEscape && isASCIIAlphaCaselessEqual(tokenStart<SrcCharacterType>()[1], 'n')) {
+ if (result - tokenStart<SrcCharacterType>() == 2) {
+ // String "-n" is IDENT but "-n+1" is NTH.
+ if (parseNthChildExtra<SrcCharacterType>()) {
+ m_token = NTH;
+ result = currentCharacter<SrcCharacterType>();
+ }
+ } else if (result - tokenStart<SrcCharacterType>() >= 3 && tokenStart<SrcCharacterType>()[2] == '-') {
+ // String "-n-" is IDENT but "-n-1" is NTH.
+ // Set currentCharacter to second '-' of '-n-' to continue parsing.
+ SrcCharacterType* nextCharacter = result;
+ currentCharacter<SrcCharacterType>() = tokenStart<SrcCharacterType>() + 2;
+ if (parseNthChildExtra<SrcCharacterType>()) {
+ m_token = NTH;
+ result = currentCharacter<SrcCharacterType>();
+ } else {
+ // Revert the change to currentCharacter if unsuccessful.
+ currentCharacter<SrcCharacterType>() = nextCharacter;
+ }
+ }
+ }
+ resultString.setLength(result - tokenStart<SrcCharacterType>());
+ yylval->string = resultString;
+ } else if (currentCharacter<SrcCharacterType>()[0] == '-' && currentCharacter<SrcCharacterType>()[1] == '>') {
+ currentCharacter<SrcCharacterType>() += 2;
+ m_token = SGML_CD;
+ } else if (currentCharacter<SrcCharacterType>()[0] == '-') {
+ --currentCharacter<SrcCharacterType>();
+ parseIdentifier(result, resultString, hasEscape);
+ m_token = CUSTOM_PROPERTY;
+ yylval->string = resultString;
+ } else if (UNLIKELY(m_parsingMode == NthChildMode)) {
+ // "-[0-9]+n" is always an NthChild.
+ if (parseNthChild<SrcCharacterType>()) {
+ parseNthChildExtra<SrcCharacterType>();
+ m_token = NTH;
+ yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
+ }
+ }
+ break;
+
+ case CharacterOther:
+ // m_token is simply the current character.
+ break;
+
+ case CharacterNull:
+ // Do not advance pointer at the end of input.
+ --currentCharacter<SrcCharacterType>();
+ break;
+
+ case CharacterWhiteSpace:
+ m_token = WHITESPACE;
+ // Might start with a '\n'.
+ --currentCharacter<SrcCharacterType>();
+ do {
+ if (*currentCharacter<SrcCharacterType>() == '\n') {
+ ++m_lineNumber;
+ m_columnOffsetForLine = currentCharacterOffset() + 1;
+ }
+ ++currentCharacter<SrcCharacterType>();
+ } while (*currentCharacter<SrcCharacterType>() <= ' ' && (typesOfASCIICharacters[*currentCharacter<SrcCharacterType>()] == CharacterWhiteSpace));
+ break;
+
+ case CharacterEndConditionQuery: {
+ bool isParsingCondition = m_parsingMode == MediaQueryMode || m_parsingMode == SupportsMode;
+ if (isParsingCondition)
+ m_parsingMode = NormalMode;
+ break;
+ }
+
+ case CharacterEndNthChild:
+ if (m_parsingMode == NthChildMode)
+ m_parsingMode = NormalMode;
+ break;
+
+ case CharacterQuote:
+ if (checkAndSkipString(currentCharacter<SrcCharacterType>(), m_token)) {
+ ++result;
+ parseString<SrcCharacterType>(result, yylval->string, m_token);
+ m_token = STRING;
+ }
+ break;
+
+ case CharacterExclamationMark: {
+ SrcCharacterType* start = skipWhiteSpace(currentCharacter<SrcCharacterType>());
+ if (isEqualToCSSIdentifier(start, "important")) {
+ m_token = IMPORTANT_SYM;
+ currentCharacter<SrcCharacterType>() = start + 9;
+ }
+ break;
+ }
+
+ case CharacterHashmark: {
+ SrcCharacterType* start = currentCharacter<SrcCharacterType>();
+ result = currentCharacter<SrcCharacterType>();
+
+ if (isASCIIDigit(*currentCharacter<SrcCharacterType>())) {
+ // This must be a valid hex number token.
+ do {
+ ++currentCharacter<SrcCharacterType>();
+ } while (isASCIIHexDigit(*currentCharacter<SrcCharacterType>()));
+ m_token = HEX;
+ yylval->string.init(start, currentCharacter<SrcCharacterType>() - start);
+ } else if (isIdentifierStart<SrcCharacterType>()) {
+ m_token = IDSEL;
+ parseIdentifier(result, yylval->string, hasEscape);
+ if (!hasEscape) {
+ // Check whether the identifier is also a valid hex number.
+ SrcCharacterType* current = start;
+ m_token = HEX;
+ do {
+ if (!isASCIIHexDigit(*current)) {
+ m_token = IDSEL;
+ break;
+ }
+ ++current;
+ } while (current < result);
+ }
+ }
+ break;
+ }
+
+ case CharacterSlash:
+ // Ignore comments. They are not even considered as white spaces.
+ if (*currentCharacter<SrcCharacterType>() == '*') {
+ ++currentCharacter<SrcCharacterType>();
+ while (currentCharacter<SrcCharacterType>()[0] != '*' || currentCharacter<SrcCharacterType>()[1] != '/') {
+ if (*currentCharacter<SrcCharacterType>() == '\n') {
+ ++m_lineNumber;
+ m_columnOffsetForLine = currentCharacterOffset() + 1;
+ } else if (*currentCharacter<SrcCharacterType>() == '\0') {
+ // Unterminated comments are simply ignored.
+ currentCharacter<SrcCharacterType>() -= 2;
+ break;
+ }
+ ++currentCharacter<SrcCharacterType>();
+ }
+ currentCharacter<SrcCharacterType>() += 2;
+ goto restartAfterComment;
+ }
+ break;
+
+ case CharacterDollar:
+ if (*currentCharacter<SrcCharacterType>() == '=') {
+ ++currentCharacter<SrcCharacterType>();
+ m_token = ENDSWITH;
+ }
+ break;
+
+ case CharacterAsterisk:
+ if (*currentCharacter<SrcCharacterType>() == '=') {
+ ++currentCharacter<SrcCharacterType>();
+ m_token = CONTAINS;
+ }
+ break;
+
+ case CharacterPlus:
+ if (UNLIKELY(m_parsingMode == NthChildMode)) {
+ // Simplest case. "+[0-9]*n" is always NthChild.
+ if (parseNthChild<SrcCharacterType>()) {
+ parseNthChildExtra<SrcCharacterType>();
+ m_token = NTH;
+ yylval->string.init(tokenStart<SrcCharacterType>(), currentCharacter<SrcCharacterType>() - tokenStart<SrcCharacterType>());
+ }
+ }
+ break;
+
+ case CharacterLess:
+ if (currentCharacter<SrcCharacterType>()[0] == '!' && currentCharacter<SrcCharacterType>()[1] == '-' && currentCharacter<SrcCharacterType>()[2] == '-') {
+ currentCharacter<SrcCharacterType>() += 3;
+ m_token = SGML_CD;
+ }
+ break;
+
+ case CharacterAt:
+ if (isIdentifierStart<SrcCharacterType>()) {
+ m_token = ATKEYWORD;
+ ++result;
+ parseIdentifier(result, resultString, hasEscape);
+ detectAtToken<SrcCharacterType>(result - tokenStart<SrcCharacterType>(), hasEscape);
+ }
+ break;
+
+ case CharacterBackSlash:
+ if (isCSSEscape(*currentCharacter<SrcCharacterType>())) {
+ --currentCharacter<SrcCharacterType>();
+ parseIdentifier(result, yylval->string, hasEscape);
+ m_token = IDENT;
+ }
+ if (m_parsingMode == NthChildMode && m_token == IDENT && yylval->string.length() == 2 && equalLettersIgnoringASCIICase(yylval->string, "of")) {
+ m_parsingMode = NormalMode;
+ m_token = NTHCHILDSELECTORSEPARATOR;
+ }
+ break;
+
+ case CharacterXor:
+ if (*currentCharacter<SrcCharacterType>() == '=') {
+ ++currentCharacter<SrcCharacterType>();
+ m_token = BEGINSWITH;
+ }
+ break;
+
+ case CharacterVerticalBar:
+ if (*currentCharacter<SrcCharacterType>() == '=') {
+ ++currentCharacter<SrcCharacterType>();
+ m_token = DASHMATCH;
+ }
+ break;
+
+ case CharacterTilde:
+ if (*currentCharacter<SrcCharacterType>() == '=') {
+ ++currentCharacter<SrcCharacterType>();
+ m_token = INCLUDES;
+ }
+ break;
+
+ default:
+ ASSERT_NOT_REACHED();
+ break;
+ }
+
+ return token();
+}
+
+RefPtr<StyleRuleImport> CSSParser::createImportRule(const CSSParserString& url, RefPtr<MediaQuerySet>&& media)
+{
+ if (!media || !m_allowImportRules) {
+ popRuleData();
+ return nullptr;
+ }
+ auto rule = StyleRuleImport::create(url, media.releaseNonNull());
+ processAndAddNewRuleToSourceTreeIfNeeded();
+ return WTFMove(rule);
+}
+
+Ref<StyleRuleMedia> CSSParser::createMediaRule(RefPtr<MediaQuerySet>&& media, RuleList* rules)
+{
+ m_allowImportRules = m_allowNamespaceDeclarations = false;
+ RefPtr<StyleRuleMedia> rule;
+ RuleList emptyRules;
+ if (!media) {
+ // To comply with w3c test suite expectation, create an empty media query
+ // even when it is syntactically incorrect.
+ rule = StyleRuleMedia::create(MediaQuerySet::create(), emptyRules);
+ } else {
+ media->shrinkToFit();
+ rule = StyleRuleMedia::create(media.releaseNonNull(), rules ? *rules : emptyRules);
+ }
+ processAndAddNewRuleToSourceTreeIfNeeded();
+ return rule.releaseNonNull();
+}
+
+Ref<StyleRuleMedia> CSSParser::createEmptyMediaRule(RuleList* rules)
+{
+ return createMediaRule(MediaQuerySet::create(), rules);
+}
+
+Ref<StyleRuleSupports> CSSParser::createSupportsRule(bool conditionIsSupported, RuleList* rules)
+{
+ m_allowImportRules = m_allowNamespaceDeclarations = false;
+
+ RefPtr<CSSRuleSourceData> data = popSupportsRuleData();
+ String conditionText;
+ unsigned conditionOffset = data->ruleHeaderRange.start + 9;
+ unsigned conditionLength = data->ruleHeaderRange.length() - 9;
+
+ if (is8BitSource())
+ conditionText = String(m_dataStart8.get() + conditionOffset, conditionLength).stripWhiteSpace();
+ else
+ conditionText = String(m_dataStart16.get() + conditionOffset, conditionLength).stripWhiteSpace();
+
+ RefPtr<StyleRuleSupports> rule;
+ if (rules)
+ rule = StyleRuleSupports::create(conditionText, conditionIsSupported, *rules);
+ else {
+ RuleList emptyRules;
+ rule = StyleRuleSupports::create(conditionText, conditionIsSupported, emptyRules);
+ }
+
+ processAndAddNewRuleToSourceTreeIfNeeded();
+
+ return rule.releaseNonNull();
+}
+
+void CSSParser::markSupportsRuleHeaderStart()
+{
+ if (!m_supportsRuleDataStack)
+ m_supportsRuleDataStack = std::make_unique<RuleSourceDataList>();
+
+ auto data = CSSRuleSourceData::create(CSSRuleSourceData::SUPPORTS_RULE);
+ data->ruleHeaderRange.start = tokenStartOffset();
+ m_supportsRuleDataStack->append(WTFMove(data));
+}
+
+void CSSParser::markSupportsRuleHeaderEnd()
+{
+ ASSERT(m_supportsRuleDataStack && !m_supportsRuleDataStack->isEmpty());
+
+ if (is8BitSource())
+ m_supportsRuleDataStack->last()->ruleHeaderRange.end = tokenStart<LChar>() - m_dataStart8.get();
+ else
+ m_supportsRuleDataStack->last()->ruleHeaderRange.end = tokenStart<UChar>() - m_dataStart16.get();
+}
+
+Ref<CSSRuleSourceData> CSSParser::popSupportsRuleData()
+{
+ ASSERT(m_supportsRuleDataStack && !m_supportsRuleDataStack->isEmpty());
+ return m_supportsRuleDataStack->takeLast();
+}
+
+void CSSParser::processAndAddNewRuleToSourceTreeIfNeeded()
+{
+ if (!isExtractingSourceData())
+ return;
+ markRuleBodyEnd();
+ Ref<CSSRuleSourceData> rule = *popRuleData();
+ fixUnparsedPropertyRanges(rule);
+ addNewRuleToSourceTree(WTFMove(rule));
+}
+
+void CSSParser::addNewRuleToSourceTree(Ref<CSSRuleSourceData>&& rule)
+{
+ // Precondition: (isExtractingSourceData()).
+ if (!m_ruleSourceDataResult)
+ return;
+ if (m_currentRuleDataStack->isEmpty())
+ m_ruleSourceDataResult->append(WTFMove(rule));
+ else
+ m_currentRuleDataStack->last()->childRules.append(WTFMove(rule));
+}
+
+RefPtr<CSSRuleSourceData> CSSParser::popRuleData()
+{
+ if (!m_ruleSourceDataResult)
+ return nullptr;
+
+ ASSERT(!m_currentRuleDataStack->isEmpty());
+ m_currentRuleData = nullptr;
+ return m_currentRuleDataStack->takeLast();
+}
+
+void CSSParser::syntaxError(const Location& location, SyntaxErrorType error)
+{
+ if (!isLoggingErrors())
+ return;
+
+ StringBuilder builder;
+ switch (error) {
+ case PropertyDeclarationError:
+ builder.appendLiteral("Invalid CSS property declaration at: ");
+ break;
+ default:
+ builder.appendLiteral("Unexpected CSS token: ");
+ break;
+ }
+
+ if (location.token.is8Bit())
+ builder.append(location.token.characters8(), location.token.length());
+ else
+ builder.append(location.token.characters16(), location.token.length());
+
+ logError(builder.toString(), location.lineNumber, location.columnNumber);
+
+ m_ignoreErrorsInDeclaration = true;
+}
+
+bool CSSParser::isLoggingErrors()
+{
+ return m_logErrors && !m_ignoreErrorsInDeclaration;
+}
+
+void CSSParser::logError(const String& message, int lineNumber, int columnNumber)
+{
+ PageConsoleClient& console = m_styleSheet->singleOwnerDocument()->page()->console();
+ console.addMessage(MessageSource::CSS, MessageLevel::Warning, message, m_styleSheet->baseURL().string(), lineNumber + 1, columnNumber + 1);
+}
+
+Ref<StyleRuleKeyframes> CSSParser::createKeyframesRule(const String& name, std::unique_ptr<Vector<RefPtr<StyleKeyframe>>> keyframes)
+{
+ m_allowImportRules = m_allowNamespaceDeclarations = false;
+ Ref<StyleRuleKeyframes> rule = StyleRuleKeyframes::create();
+ for (auto& keyFrame : *keyframes)
+ rule->parserAppendKeyframe(WTFMove(keyFrame));
+ rule->setName(name);
+ processAndAddNewRuleToSourceTreeIfNeeded();
+ return rule;
+}
+
+RefPtr<StyleRule> CSSParser::createStyleRule(Vector<std::unique_ptr<CSSParserSelector>>* selectors)
+{
+ RefPtr<StyleRule> rule;
+ if (selectors) {
+ m_allowImportRules = false;
+ m_allowNamespaceDeclarations = false;
+ rule = StyleRule::create(m_lastSelectorLineNumber, createStyleProperties());
+ rule->parserAdoptSelectorVector(*selectors);
+ processAndAddNewRuleToSourceTreeIfNeeded();
+ } else
+ popRuleData();
+ clearProperties();
+ return rule;
+}
+
+RefPtr<StyleRuleFontFace> CSSParser::createFontFaceRule()
+{
+ m_allowImportRules = m_allowNamespaceDeclarations = false;
+ for (auto& property : m_parsedProperties) {
+ if (property.id() == CSSPropertyFontFamily && (!is<CSSValueList>(*property.value()) || downcast<CSSValueList>(*property.value()).length() != 1)) {
+ // Unlike font-family property, font-family descriptor in @font-face rule
+ // has to be a value list with exactly one family name. It cannot have a
+ // have 'initial' value and cannot 'inherit' from parent.
+ // See http://dev.w3.org/csswg/css3-fonts/#font-family-desc
+ clearProperties();
+ popRuleData();
+ return nullptr;
+ }
+ }
+ auto rule = StyleRuleFontFace::create(createStyleProperties());
+ clearProperties();
+ processAndAddNewRuleToSourceTreeIfNeeded();
+ return WTFMove(rule);
+}
+
+void CSSParser::addNamespace(const AtomicString& prefix, const AtomicString& uri)
+{
+ if (!m_styleSheet || !m_allowNamespaceDeclarations)
+ return;
+ m_allowImportRules = false;
+ m_styleSheet->parserAddNamespace(prefix, uri);
+ if (prefix.isEmpty() && !uri.isNull())
+ m_defaultNamespace = uri;
+}
+
+QualifiedName CSSParser::determineNameInNamespace(const AtomicString& prefix, const AtomicString& localName)
+{
+ if (prefix.isNull())
+ return QualifiedName(nullAtom, localName, nullAtom); // No namespace. If an element/attribute has a namespace, we won't match it.
+ if (prefix.isEmpty())
+ return QualifiedName(emptyAtom, localName, emptyAtom); // Empty namespace.
+ if (prefix == starAtom)
+ return QualifiedName(prefix, localName, starAtom); // We'll match any namespace.
+
+ if (!m_styleSheet)
+ return QualifiedName(prefix, localName, m_defaultNamespace);
+ return QualifiedName(prefix, localName, m_styleSheet->determineNamespace(prefix));
+}
+
+void CSSParser::rewriteSpecifiersWithNamespaceIfNeeded(CSSParserSelector& specifiers)
+{
+ if (m_defaultNamespace != starAtom || specifiers.isCustomPseudoElement()) {
+ QualifiedName elementName(nullAtom, starAtom, m_defaultNamespace);
+ rewriteSpecifiersWithElementName(elementName, specifiers, /*tagIsForNamespaceRule*/true);
+ }
+}
+
+void CSSParser::rewriteSpecifiersWithElementName(const AtomicString& namespacePrefix, const AtomicString& elementName, CSSParserSelector& specifiers)
+{
+ QualifiedName tag(determineNameInNamespace(namespacePrefix, elementName));
+ rewriteSpecifiersWithElementName(tag, specifiers, false);
+}
+
+void CSSParser::rewriteSpecifiersWithElementName(const QualifiedName& tag, CSSParserSelector& specifiers, bool tagIsForNamespaceRule)
+{
+ if (!specifiers.isCustomPseudoElement()) {
+ if (tag == anyQName())
+ return;
+ if (!specifiers.isPseudoElementCueFunction())
+ specifiers.prependTagSelector(tag, tagIsForNamespaceRule);
+ return;
+ }
+
+ CSSParserSelector* lastShadowDescendant = &specifiers;
+ CSSParserSelector* history = &specifiers;
+ while (history->tagHistory()) {
+ history = history->tagHistory();
+ if (history->isCustomPseudoElement() || history->hasShadowDescendant())
+ lastShadowDescendant = history;
+ }
+
+ if (lastShadowDescendant->tagHistory()) {
+ if (tag != anyQName())
+ lastShadowDescendant->tagHistory()->prependTagSelector(tag, tagIsForNamespaceRule);
+ return;
+ }
+
+ // For shadow-ID pseudo-elements to be correctly matched, the ShadowDescendant combinator has to be used.
+ // We therefore create a new Selector with that combinator here in any case, even if matching any (host) element in any namespace (i.e. '*').
+ lastShadowDescendant->setTagHistory(std::make_unique<CSSParserSelector>(tag));
+ lastShadowDescendant->setRelation(CSSSelector::ShadowDescendant);
+}
+
+std::unique_ptr<CSSParserSelector> CSSParser::rewriteSpecifiers(std::unique_ptr<CSSParserSelector> specifiers, std::unique_ptr<CSSParserSelector> newSpecifier)
+{
+ if (newSpecifier->isCustomPseudoElement() || newSpecifier->isPseudoElementCueFunction()) {
+ // Unknown pseudo element always goes at the top of selector chain.
+ newSpecifier->appendTagHistory(CSSSelector::ShadowDescendant, WTFMove(specifiers));
+ return newSpecifier;
+ }
+ if (specifiers->isCustomPseudoElement()) {
+ // Specifiers for unknown pseudo element go right behind it in the chain.
+ specifiers->insertTagHistory(CSSSelector::SubSelector, WTFMove(newSpecifier), CSSSelector::ShadowDescendant);
+ return specifiers;
+ }
+ specifiers->appendTagHistory(CSSSelector::SubSelector, WTFMove(newSpecifier));
+ return specifiers;
+}
+
+RefPtr<StyleRulePage> CSSParser::createPageRule(std::unique_ptr<CSSParserSelector> pageSelector)
+{
+ // FIXME: Margin at-rules are ignored.
+ m_allowImportRules = m_allowNamespaceDeclarations = false;
+ if (pageSelector) {
+ auto rule = StyleRulePage::create(createStyleProperties());
+ Vector<std::unique_ptr<CSSParserSelector>> selectorVector;
+ selectorVector.append(WTFMove(pageSelector));
+ rule->parserAdoptSelectorVector(selectorVector);
+ processAndAddNewRuleToSourceTreeIfNeeded();
+ clearProperties();
+ return WTFMove(rule);
+ }
+
+ popRuleData();
+ clearProperties();
+ return nullptr;
+}
+
+std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> CSSParser::createSelectorVector()
+{
+ if (m_recycledSelectorVector) {
+ m_recycledSelectorVector->shrink(0);
+ return WTFMove(m_recycledSelectorVector);
+ }
+ return std::make_unique<Vector<std::unique_ptr<CSSParserSelector>>>();
+}
+
+void CSSParser::recycleSelectorVector(std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> vector)
+{
+ if (vector && !m_recycledSelectorVector)
+ m_recycledSelectorVector = WTFMove(vector);
+}
+
+RefPtr<StyleRuleRegion> CSSParser::createRegionRule(Vector<std::unique_ptr<CSSParserSelector>>* regionSelector, RuleList* rules)
+{
+ if (!regionSelector || !rules) {
+ popRuleData();
+ return nullptr;
+ }
+
+ m_allowImportRules = m_allowNamespaceDeclarations = false;
+
+ auto regionRule = StyleRuleRegion::create(regionSelector, *rules);
+
+ if (isExtractingSourceData())
+ addNewRuleToSourceTree(CSSRuleSourceData::createUnknown());
+
+ return WTFMove(regionRule);
+}
+
+void CSSParser::createMarginAtRule(CSSSelector::MarginBoxType /* marginBox */)
+{
+ // FIXME: Implement margin at-rule here, using:
+ // - marginBox: margin box
+ // - m_parsedProperties: properties at [m_numParsedPropertiesBeforeMarginBox, m_parsedProperties.size()] are for this at-rule.
+ // Don't forget to also update the action for page symbol in CSSGrammar.y such that margin at-rule data is cleared if page_selector is invalid.
+
+ endDeclarationsForMarginBox();
+}
+
+void CSSParser::startDeclarationsForMarginBox()
+{
+ m_numParsedPropertiesBeforeMarginBox = m_parsedProperties.size();
+}
+
+void CSSParser::endDeclarationsForMarginBox()
+{
+ rollbackLastProperties(m_parsedProperties.size() - m_numParsedPropertiesBeforeMarginBox);
+ m_numParsedPropertiesBeforeMarginBox = invalidParsedPropertiesCount;
+}
+
+RefPtr<StyleKeyframe> CSSParser::createKeyframe(CSSParserValueList& keys)
+{
+ // Create a key string from the passed keys
+ StringBuilder keyString;
+ for (unsigned i = 0; i < keys.size(); ++i) {
+ // Just as per the comment below, we ignore keyframes with
+ // invalid key values (plain numbers or unknown identifiers)
+ // marked as CSSPrimitiveValue::CSS_UNKNOWN during parsing.
+ if (keys.valueAt(i)->unit == CSSPrimitiveValue::CSS_UNKNOWN) {
+ clearProperties();
+ return nullptr;
+ }
+
+ ASSERT(keys.valueAt(i)->unit == CSSPrimitiveValue::CSS_NUMBER);
+ float key = static_cast<float>(keys.valueAt(i)->fValue);
+ if (key < 0 || key > 100) {
+ // As per http://www.w3.org/TR/css3-animations/#keyframes,
+ // "If a keyframe selector specifies negative percentage values
+ // or values higher than 100%, then the keyframe will be ignored."
+ clearProperties();
+ return nullptr;
+ }
+ if (i != 0)
+ keyString.append(',');
+ keyString.appendNumber(key);
+ keyString.append('%');
+ }
+
+ auto keyframe = StyleKeyframe::create(createStyleProperties());
+ keyframe->setKeyText(keyString.toString());
+
+ clearProperties();
+
+ return WTFMove(keyframe);
+}
+
+void CSSParser::invalidBlockHit()
+{
+ if (m_styleSheet && !m_hadSyntacticallyValidCSSRule)
+ m_styleSheet->setHasSyntacticallyValidCSSHeader(false);
+}
+
+void CSSParser::updateLastSelectorLineAndPosition()
+{
+ m_lastSelectorLineNumber = m_lineNumber;
+}
+
+void CSSParser::updateLastMediaLine(MediaQuerySet& media)
+{
+ media.setLastLine(m_lineNumber);
+}
+
+template <typename CharacterType>
+static inline void fixUnparsedProperties(const CharacterType* characters, CSSRuleSourceData& ruleData)
+{
+ auto& propertyData = ruleData.styleSourceData->propertyData;
+ unsigned size = propertyData.size();
+ if (!size)
+ return;
+
+ unsigned styleStart = ruleData.ruleBodyRange.start;
+ auto* nextData = &propertyData[0];
+ for (unsigned i = 0; i < size; ++i) {
+ auto* currentData = nextData;
+ nextData = i < size - 1 ? &propertyData[i + 1] : 0;
+
+ if (currentData->parsedOk)
+ continue;
+ if (currentData->range.end > 0 && characters[styleStart + currentData->range.end - 1] == ';')
+ continue;
+
+ unsigned propertyEndInStyleSheet;
+ if (!nextData)
+ propertyEndInStyleSheet = ruleData.ruleBodyRange.end - 1;
+ else
+ propertyEndInStyleSheet = styleStart + nextData->range.start - 1;
+
+ while (isHTMLSpace(characters[propertyEndInStyleSheet]))
+ --propertyEndInStyleSheet;
+
+ // propertyEndInStyleSheet points at the last property text character.
+ unsigned newPropertyEnd = propertyEndInStyleSheet - styleStart + 1; // Exclusive of the last property text character.
+ if (currentData->range.end != newPropertyEnd) {
+ currentData->range.end = newPropertyEnd;
+ unsigned valueStartInStyleSheet = styleStart + currentData->range.start + currentData->name.length();
+ while (valueStartInStyleSheet < propertyEndInStyleSheet && characters[valueStartInStyleSheet] != ':')
+ ++valueStartInStyleSheet;
+ if (valueStartInStyleSheet < propertyEndInStyleSheet)
+ ++valueStartInStyleSheet; // Shift past the ':'.
+ while (valueStartInStyleSheet < propertyEndInStyleSheet && isHTMLSpace(characters[valueStartInStyleSheet]))
+ ++valueStartInStyleSheet;
+ // Need to exclude the trailing ';' from the property value.
+ currentData->value = String(characters + valueStartInStyleSheet, propertyEndInStyleSheet - valueStartInStyleSheet + (characters[propertyEndInStyleSheet] == ';' ? 0 : 1));
+ }
+ }
+}
+
+void CSSParser::fixUnparsedPropertyRanges(CSSRuleSourceData& ruleData)
+{
+ if (!ruleData.styleSourceData)
+ return;
+
+ if (is8BitSource()) {
+ fixUnparsedProperties<LChar>(m_dataStart8.get() + m_parsedTextPrefixLength, ruleData);
+ return;
+ }
+
+ fixUnparsedProperties<UChar>(m_dataStart16.get() + m_parsedTextPrefixLength, ruleData);
+}
+
+void CSSParser::markRuleHeaderStart(CSSRuleSourceData::Type ruleType)
+{
+ if (!isExtractingSourceData())
+ return;
+
+ // Pop off data for a previous invalid rule.
+ if (m_currentRuleData)
+ m_currentRuleDataStack->removeLast();
+
+ auto data = CSSRuleSourceData::create(ruleType);
+ data->ruleHeaderRange.start = tokenStartOffset();
+ m_currentRuleData = data.copyRef();
+ m_currentRuleDataStack->append(WTFMove(data));
+}
+
+template <typename CharacterType>
+inline void CSSParser::setRuleHeaderEnd(const CharacterType* dataStart)
+{
+ CharacterType* listEnd = tokenStart<CharacterType>();
+ while (listEnd > dataStart + 1) {
+ if (isHTMLSpace(*(listEnd - 1)))
+ --listEnd;
+ else
+ break;
+ }
+
+ m_currentRuleDataStack->last()->ruleHeaderRange.end = listEnd - dataStart;
+}
+
+void CSSParser::markRuleHeaderEnd()
+{
+ if (!isExtractingSourceData())
+ return;
+ ASSERT(!m_currentRuleDataStack->isEmpty());
+
+ if (is8BitSource())
+ setRuleHeaderEnd<LChar>(m_dataStart8.get());
+ else
+ setRuleHeaderEnd<UChar>(m_dataStart16.get());
+}
+
+void CSSParser::markSelectorStart()
+{
+ if (!isExtractingSourceData() || m_nestedSelectorLevel)
+ return;
+ ASSERT(!m_selectorRange.end);
+
+ m_selectorRange.start = tokenStartOffset();
+}
+
+void CSSParser::markSelectorEnd()
+{
+ if (!isExtractingSourceData() || m_nestedSelectorLevel)
+ return;
+ ASSERT(!m_selectorRange.end);
+ ASSERT(m_currentRuleDataStack->size());
+
+ m_selectorRange.end = tokenStartOffset();
+ m_currentRuleDataStack->last()->selectorRanges.append(m_selectorRange);
+ m_selectorRange.start = 0;
+ m_selectorRange.end = 0;
+}
+
+void CSSParser::markRuleBodyStart()
+{
+ if (!isExtractingSourceData())
+ return;
+ m_currentRuleData = nullptr;
+ unsigned offset = tokenStartOffset();
+ if (tokenStartChar() == '{')
+ ++offset; // Skip the rule body opening brace.
+ ASSERT(!m_currentRuleDataStack->isEmpty());
+ m_currentRuleDataStack->last()->ruleBodyRange.start = offset;
+}
+
+void CSSParser::markRuleBodyEnd()
+{
+ // Precondition: (!isExtractingSourceData())
+ unsigned offset = tokenStartOffset();
+ ASSERT(!m_currentRuleDataStack->isEmpty());
+ m_currentRuleDataStack->last()->ruleBodyRange.end = offset;
+}
+
+void CSSParser::markPropertyStart()
+{
+ m_ignoreErrorsInDeclaration = false;
+ if (!isExtractingSourceData())
+ return;
+ if (m_currentRuleDataStack->isEmpty() || !m_currentRuleDataStack->last()->styleSourceData)
+ return;
+
+ m_propertyRange.start = tokenStartOffset();
+}
+
+void CSSParser::markPropertyEnd(bool isImportantFound, bool isPropertyParsed)
+{
+ if (!isExtractingSourceData())
+ return;
+ if (m_currentRuleDataStack->isEmpty() || !m_currentRuleDataStack->last()->styleSourceData)
+ return;
+
+ unsigned offset = tokenStartOffset();
+ if (tokenStartChar() == ';') // Include semicolon into the property text.
+ ++offset;
+ m_propertyRange.end = offset;
+ if (m_propertyRange.start != std::numeric_limits<unsigned>::max() && !m_currentRuleDataStack->isEmpty()) {
+ // This stuff is only executed when the style data retrieval is requested by client.
+ const unsigned start = m_propertyRange.start;
+ const unsigned end = m_propertyRange.end;
+ ASSERT_WITH_SECURITY_IMPLICATION(start < end);
+ String propertyString;
+ if (is8BitSource())
+ propertyString = String(m_dataStart8.get() + start, end - start).stripWhiteSpace();
+ else
+ propertyString = String(m_dataStart16.get() + start, end - start).stripWhiteSpace();
+ if (propertyString.endsWith(';'))
+ propertyString = propertyString.left(propertyString.length() - 1);
+ size_t colonIndex = propertyString.find(':');
+ ASSERT(colonIndex != notFound);
+
+ String name = propertyString.left(colonIndex).stripWhiteSpace();
+ String value = propertyString.substring(colonIndex + 1, propertyString.length()).stripWhiteSpace();
+ // The property range is relative to the declaration start offset.
+ SourceRange& topRuleBodyRange = m_currentRuleDataStack->last()->ruleBodyRange;
+ m_currentRuleDataStack->last()->styleSourceData->propertyData.append(
+ CSSPropertySourceData(name, value, isImportantFound, isPropertyParsed, SourceRange(start - topRuleBodyRange.start, end - topRuleBodyRange.start)));
+ }
+ resetPropertyRange();
+}
+
+#if ENABLE(CSS_DEVICE_ADAPTATION)
+Ref<StyleRuleViewport> CSSParser::createViewportRule()
+{
+ m_allowImportRules = m_allowNamespaceDeclarations = false;
+
+ auto rule = StyleRuleViewport::create(createStyleProperties());
+ clearProperties();
+
+ processAndAddNewRuleToSourceTreeIfNeeded();
+
+ return rule;
+}
+
+bool CSSParser::parseViewportProperty(CSSPropertyID propId, bool important)
+{
+ if (!m_valueList->current())
+ return false;
+
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+
+ CSSValueID id = valueWithCalculation.value().id;
+ bool validPrimitive = false;
+
+ switch (propId) {
+ case CSSPropertyMinWidth: // auto | device-width | device-height | <length> | <percentage>
+ case CSSPropertyMaxWidth:
+ case CSSPropertyMinHeight:
+ case CSSPropertyMaxHeight:
+ if (id == CSSValueAuto || id == CSSValueDeviceWidth || id == CSSValueDeviceHeight)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg));
+ break;
+ case CSSPropertyWidth: // shorthand
+ return parseViewportShorthand(propId, CSSPropertyMinWidth, CSSPropertyMaxWidth, important);
+ case CSSPropertyHeight:
+ return parseViewportShorthand(propId, CSSPropertyMinHeight, CSSPropertyMaxHeight, important);
+ case CSSPropertyMinZoom: // auto | <number> | <percentage>
+ case CSSPropertyMaxZoom:
+ case CSSPropertyZoom:
+ if (id == CSSValueAuto)
+ validPrimitive = true;
+ else
+ validPrimitive = (!id && validateUnit(valueWithCalculation, FNumber | FPercent | FNonNeg));
+ break;
+ case CSSPropertyUserZoom: // zoom | fixed
+ if (id == CSSValueZoom || id == CSSValueFixed)
+ validPrimitive = true;
+ break;
+ case CSSPropertyOrientation: // auto | portrait | landscape
+ if (id == CSSValueAuto || id == CSSValuePortrait || id == CSSValueLandscape)
+ validPrimitive = true;
+ default:
+ break;
+ }
+
+ RefPtr<CSSValue> parsedValue;
+ if (validPrimitive) {
+ parsedValue = parseValidPrimitive(id, valueWithCalculation);
+ m_valueList->next();
+ }
+
+ if (!parsedValue)
+ return false;
+
+ if (m_valueList->current() && !inShorthand())
+ return false;
+
+ addProperty(propId, parsedValue.releaseNonNull(), important);
+ return true;
+}
+
+bool CSSParser::parseViewportShorthand(CSSPropertyID propId, CSSPropertyID first, CSSPropertyID second, bool important)
+{
+ unsigned numValues = m_valueList->size();
+
+ if (numValues > 2)
+ return false;
+
+ ShorthandScope scope(this, propId);
+
+ if (!parseViewportProperty(first, important))
+ return false;
+
+ // If just one value is supplied, the second value
+ // is implicitly initialized with the first value.
+ if (numValues == 1)
+ m_valueList->previous();
+
+ return parseViewportProperty(second, important);
+}
+#endif
+
+template <typename CharacterType>
+static CSSPropertyID cssPropertyID(const CharacterType* propertyName, unsigned length)
+{
+ char buffer[maxCSSPropertyNameLength + 1 + 1]; // 1 to turn "apple"/"khtml" into "webkit", 1 for null character
+
+ for (unsigned i = 0; i != length; ++i) {
+ CharacterType c = propertyName[i];
+ if (c == 0 || c >= 0x7F)
+ return CSSPropertyInvalid; // illegal character
+ buffer[i] = toASCIILower(c);
+ }
+ buffer[length] = '\0';
+
+ const char* name = buffer;
+ if (buffer[0] == '-') {
+#if ENABLE(LEGACY_CSS_VENDOR_PREFIXES)
+ // If the prefix is -apple- or -khtml-, change it to -webkit-.
+ // This makes the string one character longer.
+ if (RuntimeEnabledFeatures::sharedFeatures().legacyCSSVendorPrefixesEnabled()
+ && (hasPrefix(buffer, length, "-apple-") || hasPrefix(buffer, length, "-khtml-"))) {
+ memmove(buffer + 7, buffer + 6, length + 1 - 6);
+ memcpy(buffer, "-webkit", 7);
+ ++length;
+ }
+#endif
+#if PLATFORM(IOS)
+ cssPropertyNameIOSAliasing(buffer, name, length);
+#endif
+ }
+
+ const Property* hashTableEntry = findProperty(name, length);
+ return hashTableEntry ? static_cast<CSSPropertyID>(hashTableEntry->id) : CSSPropertyInvalid;
+}
+
+CSSPropertyID cssPropertyID(const String& string)
+{
+ unsigned length = string.length();
+
+ if (!length)
+ return CSSPropertyInvalid;
+ if (length > maxCSSPropertyNameLength)
+ return CSSPropertyInvalid;
+
+ return string.is8Bit() ? cssPropertyID(string.characters8(), length) : cssPropertyID(string.characters16(), length);
+}
+
+CSSPropertyID cssPropertyID(const CSSParserString& string)
+{
+ unsigned length = string.length();
+
+ if (!length)
+ return CSSPropertyInvalid;
+ if (length > maxCSSPropertyNameLength)
+ return CSSPropertyInvalid;
+
+ return string.is8Bit() ? cssPropertyID(string.characters8(), length) : cssPropertyID(string.characters16(), length);
+}
+
+#if PLATFORM(IOS)
+void cssPropertyNameIOSAliasing(const char* propertyName, const char*& propertyNameAlias, unsigned& newLength)
+{
+ if (!strcmp(propertyName, "-webkit-hyphenate-locale")) {
+ // Worked in iOS 4.2.
+ static const char webkitLocale[] = "-webkit-locale";
+ propertyNameAlias = webkitLocale;
+ newLength = strlen(webkitLocale);
+ }
+}
+#endif
+
+static bool isAppleLegacyCssValueKeyword(const char* valueKeyword, unsigned length)
+{
+ static const char applePrefix[] = "-apple-";
+ static const char appleSystemPrefix[] = "-apple-system";
+ static const char* appleWirelessPlaybackTargetActive = getValueName(CSSValueAppleWirelessPlaybackTargetActive);
+
+ return hasPrefix(valueKeyword, length, applePrefix)
+ && !hasPrefix(valueKeyword, length, appleSystemPrefix)
+ && !WTF::equal(reinterpret_cast<const LChar*>(valueKeyword), reinterpret_cast<const LChar*>(appleWirelessPlaybackTargetActive), length);
+}
+
+template <typename CharacterType>
+static CSSValueID cssValueKeywordID(const CharacterType* valueKeyword, unsigned length)
+{
+ char buffer[maxCSSValueKeywordLength + 1 + 1]; // 1 to turn "apple"/"khtml" into "webkit", 1 for null character
+
+ for (unsigned i = 0; i != length; ++i) {
+ CharacterType c = valueKeyword[i];
+ if (c == 0 || c >= 0x7F)
+ return CSSValueInvalid; // illegal keyword.
+ buffer[i] = WTF::toASCIILower(c);
+ }
+ buffer[length] = '\0';
+
+ if (buffer[0] == '-') {
+ // If the prefix is -apple- or -khtml-, change it to -webkit-.
+ // This makes the string one character longer.
+ // On iOS we don't want to change values starting with -apple-system to -webkit-system.
+ // FIXME: Remove this mangling without breaking the web.
+ if (isAppleLegacyCssValueKeyword(buffer, length) || hasPrefix(buffer, length, "-khtml-")) {
+ memmove(buffer + 7, buffer + 6, length + 1 - 6);
+ memcpy(buffer, "-webkit", 7);
+ ++length;
+ }
+ }
+
+ const Value* hashTableEntry = findValue(buffer, length);
+ return hashTableEntry ? static_cast<CSSValueID>(hashTableEntry->id) : CSSValueInvalid;
+}
+
+CSSValueID cssValueKeywordID(const CSSParserString& string)
+{
+ unsigned length = string.length();
+ if (!length)
+ return CSSValueInvalid;
+ if (length > maxCSSValueKeywordLength)
+ return CSSValueInvalid;
+
+ return string.is8Bit() ? cssValueKeywordID(string.characters8(), length) : cssValueKeywordID(string.characters16(), length);
+}
+
+template <typename CharacterType>
+static inline bool isCSSTokenizerIdentifier(const CharacterType* characters, unsigned length)
+{
+ const CharacterType* end = characters + length;
+
+ // -?
+ if (characters != end && characters[0] == '-')
+ ++characters;
+
+ // {nmstart}
+ if (characters == end || !(characters[0] == '_' || characters[0] >= 128 || isASCIIAlpha(characters[0])))
+ return false;
+ ++characters;
+
+ // {nmchar}*
+ for (; characters != end; ++characters) {
+ if (!(characters[0] == '_' || characters[0] == '-' || characters[0] >= 128 || isASCIIAlphanumeric(characters[0])))
+ return false;
+ }
+
+ return true;
+}
+
+// "ident" from the CSS tokenizer, minus backslash-escape sequences
+static bool isCSSTokenizerIdentifier(const String& string)
+{
+ unsigned length = string.length();
+
+ if (!length)
+ return false;
+
+ if (string.is8Bit())
+ return isCSSTokenizerIdentifier(string.characters8(), length);
+ return isCSSTokenizerIdentifier(string.characters16(), length);
+}
+
+template <typename CharacterType>
+static inline bool isCSSTokenizerURL(const CharacterType* characters, unsigned length)
+{
+ const CharacterType* end = characters + length;
+
+ for (; characters != end; ++characters) {
+ CharacterType c = characters[0];
+ switch (c) {
+ case '!':
+ case '#':
+ case '$':
+ case '%':
+ case '&':
+ break;
+ default:
+ if (c < '*')
+ return false;
+ if (c <= '~')
+ break;
+ if (c < 128)
+ return false;
+ }
+ }
+
+ return true;
+}
+
+// "url" from the CSS tokenizer, minus backslash-escape sequences
+static bool isCSSTokenizerURL(const String& string)
+{
+ unsigned length = string.length();
+
+ if (!length)
+ return true;
+
+ if (string.is8Bit())
+ return isCSSTokenizerURL(string.characters8(), length);
+ return isCSSTokenizerURL(string.characters16(), length);
+}
+
+
+template <typename CharacterType>
+static inline String quoteCSSStringInternal(const CharacterType* characters, unsigned length)
+{
+ // For efficiency, we first pre-calculate the length of the quoted string, then we build the actual one.
+ // Please see below for the actual logic.
+ unsigned quotedStringSize = 2; // Two quotes surrounding the entire string.
+ bool afterEscape = false;
+ for (unsigned i = 0; i < length; ++i) {
+ CharacterType ch = characters[i];
+ if (ch == '\\' || ch == '\'') {
+ quotedStringSize += 2;
+ afterEscape = false;
+ } else if (ch < 0x20 || ch == 0x7F) {
+ quotedStringSize += 2 + (ch >= 0x10);
+ afterEscape = true;
+ } else {
+ quotedStringSize += 1 + (afterEscape && (isASCIIHexDigit(ch) || ch == ' '));
+ afterEscape = false;
+ }
+ }
+
+ StringBuffer<CharacterType> buffer(quotedStringSize);
+ unsigned index = 0;
+ buffer[index++] = '\'';
+ afterEscape = false;
+ for (unsigned i = 0; i < length; ++i) {
+ CharacterType ch = characters[i];
+ if (ch == '\\' || ch == '\'') {
+ buffer[index++] = '\\';
+ buffer[index++] = ch;
+ afterEscape = false;
+ } else if (ch < 0x20 || ch == 0x7F) { // Control characters.
+ buffer[index++] = '\\';
+ placeByteAsHexCompressIfPossible(ch, buffer, index, Lowercase);
+ afterEscape = true;
+ } else {
+ // Space character may be required to separate backslash-escape sequence and normal characters.
+ if (afterEscape && (isASCIIHexDigit(ch) || ch == ' '))
+ buffer[index++] = ' ';
+ buffer[index++] = ch;
+ afterEscape = false;
+ }
+ }
+ buffer[index++] = '\'';
+
+ ASSERT(quotedStringSize == index);
+ return String::adopt(buffer);
+}
+
+// We use single quotes for now because markup.cpp uses double quotes.
+String quoteCSSString(const String& string)
+{
+ // This function expands each character to at most 3 characters ('\u0010' -> '\' '1' '0') as well as adds
+ // 2 quote characters (before and after). Make sure the resulting size (3 * length + 2) will not overflow unsigned.
+
+ unsigned length = string.length();
+
+ if (!length)
+ return ASCIILiteral("\'\'");
+
+ if (length > std::numeric_limits<unsigned>::max() / 3 - 2)
+ return emptyString();
+
+ if (string.is8Bit())
+ return quoteCSSStringInternal(string.characters8(), length);
+ return quoteCSSStringInternal(string.characters16(), length);
+}
+
+String quoteCSSStringIfNeeded(const String& string)
+{
+ return isCSSTokenizerIdentifier(string) ? string : quoteCSSString(string);
+}
+
+String quoteCSSURLIfNeeded(const String& string)
+{
+ return isCSSTokenizerURL(string) ? string : quoteCSSString(string);
+}
+
+bool isValidNthToken(const CSSParserString& token)
+{
+ // The tokenizer checks for the construct of an+b.
+ // However, since the {ident} rule precedes the {nth} rule, some of those
+ // tokens are identified as string literal. Furthermore we need to accept
+ // "odd" and "even" which does not match to an+b.
+ return equalLettersIgnoringASCIICase(token, "odd")
+ || equalLettersIgnoringASCIICase(token, "even")
+ || equalLettersIgnoringASCIICase(token, "n")
+ || equalLettersIgnoringASCIICase(token, "-n");
+}
+
+}
</ins></span></pre></div>
<a id="trunkSourceWebCorecssparserCSSParserhfromrev204839trunkSourceWebCorecssCSSParserh"></a>
<div class="copfile"><h4>Copied: trunk/Source/WebCore/css/parser/CSSParser.h (from rev 204839, trunk/Source/WebCore/css/CSSParser.h) (0 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/parser/CSSParser.h (rev 0)
+++ trunk/Source/WebCore/css/parser/CSSParser.h 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -0,0 +1,800 @@
</span><ins>+/*
+ * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2004-2010, 2015 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
+ * Copyright (C) 2009 - 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#pragma once
+
+#include "CSSCalculationValue.h"
+#include "CSSGradientValue.h"
+#include "CSSParserMode.h"
+#include "CSSParserValues.h"
+#include "CSSProperty.h"
+#include "CSSPropertyNames.h"
+#include "CSSPropertySourceData.h"
+#include "CSSValueKeywords.h"
+#include "Color.h"
+#include "MediaQuery.h"
+#include "SourceSizeList.h"
+#include "StyleRuleImport.h"
+#include "WebKitCSSFilterValue.h"
+#include <memory>
+#include <wtf/HashMap.h>
+#include <wtf/Vector.h>
+#include <wtf/text/AtomicString.h>
+#include <wtf/text/TextPosition.h>
+
+#if ENABLE(CSS_GRID_LAYOUT)
+#include "GridArea.h"
+#endif
+
+namespace WebCore {
+
+class AnimationParseContext;
+class CSSBorderImageSliceValue;
+class CSSContentDistributionValue;
+class CSSPrimitiveValue;
+class CSSSelectorList;
+class CSSValue;
+class CSSValueList;
+class CSSBasicShape;
+class CSSBasicShapeCircle;
+class CSSBasicShapeEllipse;
+class CSSBasicShapeInset;
+class CSSBasicShapePath;
+class CSSBasicShapePolygon;
+class CSSGridLineNamesValue;
+class CSSImageSetValue;
+class CSSVariableDependentValue;
+class Document;
+class Element;
+class ImmutableStyleProperties;
+class MediaQueryExpression;
+class MediaQuerySet;
+class MutableStyleProperties;
+class SVGColor;
+class SVGPaint;
+class StyleKeyframe;
+class StylePropertyShorthand;
+class StyleRule;
+class StyleRuleBase;
+class StyleRuleFontFace;
+class StyleRuleKeyframes;
+class StyleRuleMedia;
+class StyleRulePage;
+class StyleRuleRegion;
+class StyleRuleSupports;
+class StyleRuleViewport;
+class StyleKeyframe;
+class StyleSheetContents;
+class StyledElement;
+class WebKitCSSTransformValue;
+
+class CSSParser {
+ friend inline int cssyylex(void*, CSSParser*);
+
+public:
+ struct Location;
+ enum SyntaxErrorType {
+ PropertyDeclarationError,
+ GeneralSyntaxError
+ };
+
+ enum class ParseResult {
+ Changed,
+ Unchanged,
+ Error
+ };
+
+ class ValueWithCalculation {
+ public:
+ explicit ValueWithCalculation(CSSParserValue& value)
+ : m_value(value)
+ { }
+
+ CSSParserValue& value() const { return m_value; }
+ operator CSSParserValue&() { return m_value; }
+
+ RefPtr<CSSCalcValue> calculation() const { return m_calculation; }
+ void setCalculation(RefPtr<CSSCalcValue>&& calculation)
+ {
+ ASSERT(isCalculation(m_value));
+ m_calculation = calculation;
+ }
+
+ private:
+ CSSParserValue& m_value;
+ RefPtr<CSSCalcValue> m_calculation;
+ };
+
+ WEBCORE_EXPORT CSSParser(const CSSParserContext&);
+ WEBCORE_EXPORT ~CSSParser();
+
+ void parseSheet(StyleSheetContents*, const String&, const TextPosition&, RuleSourceDataList*, bool logErrors);
+ RefPtr<StyleRuleBase> parseRule(StyleSheetContents*, const String&);
+ RefPtr<StyleKeyframe> parseKeyframeRule(StyleSheetContents*, const String&);
+ bool parseSupportsCondition(const String&);
+
+ static ParseResult parseValue(MutableStyleProperties&, CSSPropertyID, const String&, bool important, CSSParserMode, StyleSheetContents*);
+ static ParseResult parseCustomPropertyValue(MutableStyleProperties&, const AtomicString& propertyName, const String&, bool important, CSSParserMode, StyleSheetContents* contextStyleSheet);
+
+ static bool parseColor(RGBA32& color, const String&, bool strict = false);
+ static bool isValidSystemColorValue(CSSValueID);
+ static bool parseSystemColor(RGBA32& color, const String&, Document*);
+ static RefPtr<CSSValueList> parseFontFaceValue(const AtomicString&);
+ RefPtr<CSSPrimitiveValue> parseValidPrimitive(CSSValueID ident, ValueWithCalculation&);
+
+ WEBCORE_EXPORT bool parseDeclaration(MutableStyleProperties&, const String&, RefPtr<CSSRuleSourceData>&&, StyleSheetContents* contextStyleSheet);
+ static Ref<ImmutableStyleProperties> parseInlineStyleDeclaration(const String&, Element*);
+ std::unique_ptr<MediaQuery> parseMediaQuery(const String&);
+
+ void addPropertyWithPrefixingVariant(CSSPropertyID, RefPtr<CSSValue>&&, bool important, bool implicit = false);
+ void addProperty(CSSPropertyID, RefPtr<CSSValue>&&, bool important, bool implicit = false);
+ void rollbackLastProperties(int num);
+ bool hasProperties() const { return !m_parsedProperties.isEmpty(); }
+ void addExpandedPropertyForValue(CSSPropertyID propId, Ref<CSSValue>&&, bool);
+
+ bool parseValue(CSSPropertyID, bool important);
+ bool parseShorthand(CSSPropertyID, const StylePropertyShorthand&, bool important);
+ bool parse4Values(CSSPropertyID, const CSSPropertyID* properties, bool important);
+ bool parseContent(CSSPropertyID, bool important);
+ bool parseQuotes(CSSPropertyID, bool important);
+ bool parseAlt(CSSPropertyID, bool important);
+
+ bool parseCustomPropertyDeclaration(bool important, CSSValueID);
+
+ RefPtr<CSSPrimitiveValue> parseAttr(CSSParserValueList& args);
+
+ RefPtr<CSSPrimitiveValue> parseBackgroundColor();
+
+ struct SourceSize {
+ MediaQueryExpression expression;
+ Ref<CSSValue> length;
+
+ SourceSize(SourceSize&&);
+ SourceSize(MediaQueryExpression&&, Ref<CSSValue>&&);
+ };
+ Vector<SourceSize> parseSizesAttribute(StringView);
+ Optional<SourceSize> sourceSize(MediaQueryExpression&&, CSSParserValue&);
+
+ bool parseFillImage(CSSParserValueList&, RefPtr<CSSValue>&);
+
+ enum FillPositionFlag { InvalidFillPosition = 0, AmbiguousFillPosition = 1, XFillPosition = 2, YFillPosition = 4 };
+ enum FillPositionParsingMode { ResolveValuesAsPercent = 0, ResolveValuesAsKeyword = 1 };
+ RefPtr<CSSPrimitiveValue> parseFillPositionComponent(CSSParserValueList&, unsigned& cumulativeFlags, FillPositionFlag& individualFlag, FillPositionParsingMode = ResolveValuesAsPercent);
+ RefPtr<CSSPrimitiveValue> parsePositionX(CSSParserValueList&);
+ RefPtr<CSSPrimitiveValue> parsePositionY(CSSParserValueList&);
+ void parse2ValuesFillPosition(CSSParserValueList&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&);
+ bool isPotentialPositionValue(CSSParserValue&);
+ void parseFillPosition(CSSParserValueList&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&);
+ void parse3ValuesFillPosition(CSSParserValueList&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&, Ref<CSSPrimitiveValue>&&, Ref<CSSPrimitiveValue>&&);
+ void parse4ValuesFillPosition(CSSParserValueList&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&, Ref<CSSPrimitiveValue>&&, Ref<CSSPrimitiveValue>&&);
+
+ void parseFillRepeat(RefPtr<CSSValue>&, RefPtr<CSSValue>&);
+ RefPtr<CSSPrimitiveValue> parseFillSize(CSSPropertyID, bool &allowComma);
+
+ bool parseFillProperty(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, RefPtr<CSSValue>&, RefPtr<CSSValue>&);
+ bool parseFillShorthand(CSSPropertyID, const CSSPropertyID* properties, int numProperties, bool important);
+
+ void addFillValue(RefPtr<CSSValue>& lval, Ref<CSSValue>&& rval);
+ void addAnimationValue(RefPtr<CSSValue>& lval, Ref<CSSValue>&& rval);
+
+ RefPtr<CSSPrimitiveValue> parseAnimationDelay();
+ RefPtr<CSSPrimitiveValue> parseAnimationDirection();
+ RefPtr<CSSPrimitiveValue> parseAnimationDuration();
+ RefPtr<CSSPrimitiveValue> parseAnimationFillMode();
+ RefPtr<CSSPrimitiveValue> parseAnimationIterationCount();
+ RefPtr<CSSPrimitiveValue> parseAnimationName();
+ RefPtr<CSSPrimitiveValue> parseAnimationPlayState();
+ RefPtr<CSSPrimitiveValue> parseAnimationProperty(AnimationParseContext&);
+ RefPtr<CSSValue> parseAnimationTimingFunction();
+#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
+ RefPtr<CSSValue> parseAnimationTrigger();
+#endif
+ static Vector<double> parseKeyframeSelector(const String&);
+
+ bool parseTransformOriginShorthand(RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSValue>&);
+ Optional<double> parseCubicBezierTimingFunctionValue(CSSParserValueList&);
+ Optional<double> parseSpringTimingFunctionValue(CSSParserValueList&);
+ bool parseAnimationProperty(CSSPropertyID, RefPtr<CSSValue>&, AnimationParseContext&);
+ bool parseTransitionShorthand(CSSPropertyID, bool important);
+ bool parseAnimationShorthand(CSSPropertyID, bool important);
+
+ bool isSpringTimingFunctionEnabled() const;
+
+ RefPtr<CSSPrimitiveValue> parseColumnWidth();
+ RefPtr<CSSPrimitiveValue> parseColumnCount();
+ bool parseColumnsShorthand(bool important);
+
+#if ENABLE(IOS_TEXT_AUTOSIZING)
+ bool isTextAutosizingEnabled() const;
+#endif
+
+#if ENABLE(CSS_GRID_LAYOUT)
+ bool isCSSGridLayoutEnabled() const;
+ RefPtr<CSSValue> parseGridPosition();
+ bool parseGridItemPositionShorthand(CSSPropertyID, bool important);
+ enum TrackListType { GridTemplate, GridTemplateNoRepeat, GridAuto };
+ RefPtr<CSSValue> parseGridTemplateColumns(TrackListType = GridTemplate);
+ bool parseGridTemplateRowsAndAreasAndColumns(bool important);
+ bool parseGridTemplateShorthand(bool important);
+ bool parseGridShorthand(bool important);
+ bool parseGridAreaShorthand(bool important);
+ bool parseGridGapShorthand(bool important);
+ bool parseSingleGridAreaLonghand(RefPtr<CSSValue>&);
+ RefPtr<CSSValue> parseGridTrackList(TrackListType);
+ bool parseGridTrackRepeatFunction(CSSValueList&, bool& isAutoRepeat, bool& allTracksAreFixedSized);
+ RefPtr<CSSValue> parseGridTrackSize(CSSParserValueList& inputList);
+ RefPtr<CSSPrimitiveValue> parseGridBreadth(CSSParserValue&);
+ bool parseGridTemplateAreasRow(NamedGridAreaMap&, const unsigned, unsigned&);
+ RefPtr<CSSValue> parseGridTemplateAreas();
+ bool parseGridLineNames(CSSParserValueList&, CSSValueList&, CSSGridLineNamesValue* = nullptr);
+ RefPtr<CSSValue> parseGridAutoFlow(CSSParserValueList&);
+#endif
+
+ bool parseDashboardRegions(CSSPropertyID, bool important);
+
+ bool parseClipShape(CSSPropertyID, bool important);
+
+ bool parseLegacyPosition(CSSPropertyID, bool important);
+ bool parseItemPositionOverflowPosition(CSSPropertyID, bool important);
+ RefPtr<CSSContentDistributionValue> parseContentDistributionOverflowPosition();
+
+#if ENABLE(CSS_SHAPES)
+ RefPtr<CSSValue> parseShapeProperty(CSSPropertyID);
+#endif
+
+ RefPtr<CSSValueList> parseBasicShapeAndOrBox(CSSPropertyID propId);
+ RefPtr<CSSPrimitiveValue> parseBasicShape();
+ RefPtr<CSSPrimitiveValue> parseShapeRadius(CSSParserValue&);
+ RefPtr<CSSBasicShapeCircle> parseBasicShapeCircle(CSSParserValueList&);
+ RefPtr<CSSBasicShapeEllipse> parseBasicShapeEllipse(CSSParserValueList&);
+ RefPtr<CSSBasicShapePolygon> parseBasicShapePolygon(CSSParserValueList&);
+ RefPtr<CSSBasicShapePath> parseBasicShapePath(CSSParserValueList&);
+ RefPtr<CSSBasicShapeInset> parseBasicShapeInset(CSSParserValueList&);
+
+ bool parseFont(bool important);
+ void parseSystemFont(bool important);
+ RefPtr<CSSValueList> parseFontFamily();
+
+ bool parseCounter(CSSPropertyID, int defaultValue, bool important);
+ RefPtr<CSSPrimitiveValue> parseCounterContent(CSSParserValueList& args, bool counters);
+
+ bool parseColorParameters(CSSParserValue&, int* colorValues, bool parseAlpha);
+ bool parseHSLParameters(CSSParserValue&, double* colorValues, bool parseAlpha);
+ RefPtr<CSSPrimitiveValue> parseColor(CSSParserValue* = nullptr);
+ bool parseColorFromValue(CSSParserValue&, RGBA32&);
+ void parseSelector(const String&, CSSSelectorList&);
+
+ template<typename StringType>
+ static bool fastParseColor(RGBA32&, const StringType&, bool strict);
+
+ bool parseLineHeight(bool important);
+ bool parseFontSize(bool important);
+ bool parseFontWeight(bool important);
+ bool parseFontSynthesis(bool important);
+ bool parseFontFaceSrc();
+ bool parseFontFaceUnicodeRange();
+
+ bool parseSVGValue(CSSPropertyID propId, bool important);
+ RefPtr<SVGPaint> parseSVGPaint();
+ RefPtr<SVGColor> parseSVGColor();
+ RefPtr<CSSValueList> parseSVGStrokeDasharray();
+ RefPtr<CSSValueList> parsePaintOrder();
+
+ // CSS3 Parsing Routines (for properties specific to CSS3)
+ RefPtr<CSSValueList> parseShadow(CSSParserValueList&, CSSPropertyID);
+ bool parseBorderImage(CSSPropertyID, RefPtr<CSSValue>&, bool important = false);
+ bool parseBorderImageRepeat(RefPtr<CSSValue>&);
+ bool parseBorderImageSlice(CSSPropertyID, RefPtr<CSSBorderImageSliceValue>&);
+ bool parseBorderImageWidth(RefPtr<CSSPrimitiveValue>&);
+ bool parseBorderImageOutset(RefPtr<CSSPrimitiveValue>&);
+ bool parseBorderRadius(CSSPropertyID, bool important);
+
+ bool parseAspectRatio(bool important);
+
+ bool parseReflect(CSSPropertyID, bool important);
+
+ bool parseFlex(CSSParserValueList& args, bool important);
+
+ // Image generators
+ bool parseCanvas(CSSParserValueList&, RefPtr<CSSValue>&);
+ bool parseNamedImage(CSSParserValueList&, RefPtr<CSSValue>&);
+
+ bool parseDeprecatedGradient(CSSParserValueList&, RefPtr<CSSValue>&);
+ bool parseDeprecatedLinearGradient(CSSParserValueList&, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
+ bool parseDeprecatedRadialGradient(CSSParserValueList&, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
+ bool parseLinearGradient(CSSParserValueList&, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
+ bool parseRadialGradient(CSSParserValueList&, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
+ bool parseGradientColorStops(CSSParserValueList&, CSSGradientValue&, bool expectComma);
+
+ bool parseCrossfade(CSSParserValueList&, RefPtr<CSSValue>&, bool prefixed);
+
+#if ENABLE(CSS_IMAGE_RESOLUTION)
+ RefPtr<CSSValueList> parseImageResolution();
+#endif
+
+ RefPtr<CSSImageSetValue> parseImageSet();
+
+ bool parseFilterImage(CSSParserValueList&, RefPtr<CSSValue>&);
+
+ bool parseFilter(CSSParserValueList&, RefPtr<CSSValueList>&);
+ RefPtr<WebKitCSSFilterValue> parseBuiltinFilterArguments(CSSParserValueList&, WebKitCSSFilterValue::FilterOperationType);
+
+ RefPtr<CSSValue> parseClipPath();
+
+ static bool isBlendMode(CSSValueID);
+ static bool isCompositeOperator(CSSValueID);
+
+ RefPtr<CSSValueList> parseTransform();
+ RefPtr<WebKitCSSTransformValue> parseTransformValue(CSSParserValue&);
+ bool parseTransformOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, CSSPropertyID& propId3, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSValue>&);
+ bool parsePerspectiveOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, RefPtr<CSSPrimitiveValue>&, RefPtr<CSSPrimitiveValue>&);
+
+ bool parseTextEmphasisStyle(bool important);
+ bool parseTextEmphasisPosition(bool important);
+
+ void addTextDecorationProperty(CSSPropertyID, RefPtr<CSSValue>&&, bool important);
+ bool parseTextDecoration(CSSPropertyID propId, bool important);
+ bool parseTextDecorationSkip(bool important);
+ bool parseTextUnderlinePosition(bool important);
+
+ RefPtr<CSSValueList> parseTextIndent();
+
+ bool parseHangingPunctuation(bool important);
+
+ bool parseLineBoxContain(bool important);
+ RefPtr<CSSCalcValue> parseCalculation(CSSParserValue&, CalculationPermittedValueRange);
+
+ bool parseFontFeatureTag(CSSValueList&);
+ bool parseFontFeatureSettings(bool important);
+
+ bool parseFlowThread(CSSPropertyID, bool important);
+ bool parseRegionThread(CSSPropertyID, bool important);
+
+ bool parseFontVariantLigatures(bool important, bool unknownIsFailure, bool implicit);
+ bool parseFontVariantNumeric(bool important, bool unknownIsFailure, bool implicit);
+ bool parseFontVariantEastAsian(bool important, bool unknownIsFailure, bool implicit);
+ bool parseFontVariant(bool important);
+
+ bool parseWillChange(bool important);
+
+ // Faster than doing a new/delete each time since it keeps one vector.
+ std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> createSelectorVector();
+ void recycleSelectorVector(std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>>);
+
+ RefPtr<StyleRuleImport> createImportRule(const CSSParserString&, RefPtr<MediaQuerySet>&&);
+ RefPtr<StyleKeyframe> createKeyframe(CSSParserValueList&);
+ Ref<StyleRuleKeyframes> createKeyframesRule(const String&, std::unique_ptr<Vector<RefPtr<StyleKeyframe>>>);
+
+ typedef Vector<RefPtr<StyleRuleBase>> RuleList;
+ Ref<StyleRuleMedia> createMediaRule(RefPtr<MediaQuerySet>&&, RuleList*);
+ Ref<StyleRuleMedia> createEmptyMediaRule(RuleList*);
+ RefPtr<StyleRule> createStyleRule(Vector<std::unique_ptr<CSSParserSelector>>* selectors);
+ RefPtr<StyleRuleFontFace> createFontFaceRule();
+ RefPtr<StyleRulePage> createPageRule(std::unique_ptr<CSSParserSelector> pageSelector);
+ RefPtr<StyleRuleRegion> createRegionRule(Vector<std::unique_ptr<CSSParserSelector>>* regionSelector, RuleList* rules);
+ void createMarginAtRule(CSSSelector::MarginBoxType);
+ Ref<StyleRuleSupports> createSupportsRule(bool conditionIsSupported, RuleList*);
+ void markSupportsRuleHeaderStart();
+ void markSupportsRuleHeaderEnd();
+ Ref<CSSRuleSourceData> popSupportsRuleData();
+
+ void startDeclarationsForMarginBox();
+ void endDeclarationsForMarginBox();
+
+ void addNamespace(const AtomicString& prefix, const AtomicString& uri);
+ QualifiedName determineNameInNamespace(const AtomicString& prefix, const AtomicString& localName);
+
+ void rewriteSpecifiersWithElementName(const AtomicString& namespacePrefix, const AtomicString& elementName, CSSParserSelector&);
+ void rewriteSpecifiersWithElementName(const QualifiedName& tagName, CSSParserSelector&, bool isNamespacePlaceholder = false);
+ void rewriteSpecifiersWithNamespaceIfNeeded(CSSParserSelector&);
+ std::unique_ptr<CSSParserSelector> rewriteSpecifiers(std::unique_ptr<CSSParserSelector>, std::unique_ptr<CSSParserSelector>);
+
+ void invalidBlockHit();
+
+ void updateLastSelectorLineAndPosition();
+ void updateLastMediaLine(MediaQuerySet&);
+
+ void clearProperties();
+
+ Ref<ImmutableStyleProperties> createStyleProperties();
+
+ static const unsigned invalidParsedPropertiesCount;
+
+ CSSParserContext m_context;
+
+ bool m_important { false };
+ CSSPropertyID m_id { CSSPropertyInvalid };
+ AtomicString m_customPropertyName;
+ StyleSheetContents* m_styleSheet { nullptr };
+ RefPtr<StyleRuleBase> m_rule;
+ RefPtr<StyleKeyframe> m_keyframe;
+ std::unique_ptr<MediaQuery> m_mediaQuery;
+ std::unique_ptr<Vector<SourceSize>> m_sourceSizeList;
+ std::unique_ptr<CSSParserValueList> m_valueList;
+ bool m_supportsCondition { false };
+
+ ParsedPropertyVector m_parsedProperties;
+ CSSSelectorList* m_selectorListForParseSelector { nullptr };
+
+ unsigned m_numParsedPropertiesBeforeMarginBox { invalidParsedPropertiesCount };
+
+ int m_inParseShorthand { 0 };
+ CSSPropertyID m_currentShorthand { CSSPropertyInvalid };
+ bool m_implicitShorthand { false };
+
+ bool m_hadSyntacticallyValidCSSRule { false };
+ bool m_logErrors { false };
+ bool m_ignoreErrorsInDeclaration { false };
+
+ AtomicString m_defaultNamespace { starAtom };
+
+ // tokenizer methods and data
+ size_t m_parsedTextPrefixLength { 0 };
+ unsigned m_nestedSelectorLevel { 0 };
+ SourceRange m_selectorRange;
+ SourceRange m_propertyRange { std::numeric_limits<unsigned>::max(), std::numeric_limits<unsigned>::max() };
+ std::unique_ptr<RuleSourceDataList> m_currentRuleDataStack;
+ RefPtr<CSSRuleSourceData> m_currentRuleData;
+ RuleSourceDataList* m_ruleSourceDataResult { nullptr };
+
+ void fixUnparsedPropertyRanges(CSSRuleSourceData&);
+ void markRuleHeaderStart(CSSRuleSourceData::Type);
+ void markRuleHeaderEnd();
+
+ void startNestedSelectorList() { ++m_nestedSelectorLevel; }
+ void endNestedSelectorList() { --m_nestedSelectorLevel; }
+ void markSelectorStart();
+ void markSelectorEnd();
+
+ void markRuleBodyStart();
+ void markRuleBodyEnd();
+ void markPropertyStart();
+ void markPropertyEnd(bool isImportantFound, bool isPropertyParsed);
+ void processAndAddNewRuleToSourceTreeIfNeeded();
+ void addNewRuleToSourceTree(Ref<CSSRuleSourceData>&&);
+ RefPtr<CSSRuleSourceData> popRuleData();
+ void resetPropertyRange() { m_propertyRange.start = m_propertyRange.end = std::numeric_limits<unsigned>::max(); }
+ bool isExtractingSourceData() const { return !!m_currentRuleDataStack; }
+ void syntaxError(const Location&, SyntaxErrorType = GeneralSyntaxError);
+
+ inline int lex(void* yylval) { return (this->*m_lexFunc)(yylval); }
+
+ int token() { return m_token; }
+
+#if ENABLE(CSS_DEVICE_ADAPTATION)
+ void markViewportRuleBodyStart() { m_inViewport = true; }
+ void markViewportRuleBodyEnd() { m_inViewport = false; }
+ Ref<StyleRuleViewport> createViewportRule();
+#endif
+
+ Ref<CSSPrimitiveValue> createPrimitiveNumericValue(ValueWithCalculation&);
+ Ref<CSSPrimitiveValue> createPrimitiveStringValue(CSSParserValue&);
+
+ static URL completeURL(const CSSParserContext&, const String& url);
+
+ Location currentLocation();
+ static bool isCalculation(CSSParserValue&);
+
+ void setCustomPropertyName(const AtomicString& propertyName) { m_customPropertyName = propertyName; }
+
+ RefPtr<CSSValue> parseVariableDependentValue(CSSPropertyID, const CSSVariableDependentValue&, const CustomPropertyValueMap& customProperties, TextDirection, WritingMode);
+
+private:
+ bool is8BitSource() { return m_is8BitSource; }
+
+ template <typename SourceCharacterType>
+ int realLex(void* yylval);
+
+ UChar*& currentCharacter16();
+
+ template <typename CharacterType>
+ inline CharacterType*& currentCharacter();
+
+ template <typename CharacterType>
+ inline CharacterType* tokenStart();
+
+ template <typename CharacterType>
+ inline void setTokenStart(CharacterType*);
+
+ inline unsigned tokenStartOffset();
+ inline UChar tokenStartChar();
+
+ inline unsigned currentCharacterOffset();
+
+ template <typename CharacterType>
+ inline bool isIdentifierStart();
+
+ template <typename CharacterType>
+ unsigned parseEscape(CharacterType*&);
+ template <typename DestCharacterType>
+ inline void UnicodeToChars(DestCharacterType*&, unsigned);
+ template <typename SrcCharacterType, typename DestCharacterType>
+ inline bool parseIdentifierInternal(SrcCharacterType*&, DestCharacterType*&, bool&);
+
+ template <typename CharacterType>
+ inline void parseIdentifier(CharacterType*&, CSSParserString&, bool&);
+
+ template <typename SrcCharacterType, typename DestCharacterType>
+ inline bool parseStringInternal(SrcCharacterType*&, DestCharacterType*&, UChar);
+
+ template <typename CharacterType>
+ inline void parseString(CharacterType*&, CSSParserString& resultString, UChar);
+
+ template <typename CharacterType>
+ inline bool findURI(CharacterType*& start, CharacterType*& end, UChar& quote);
+
+ template <typename SrcCharacterType, typename DestCharacterType>
+ inline bool parseURIInternal(SrcCharacterType*&, DestCharacterType*&, UChar quote);
+
+ template <typename CharacterType>
+ inline void parseURI(CSSParserString&);
+ template <typename CharacterType>
+ inline bool parseUnicodeRange();
+ template <typename CharacterType>
+ bool parseNthChild();
+ template <typename CharacterType>
+ bool parseNthChildExtra();
+ template <typename CharacterType>
+ inline bool detectFunctionTypeToken(int);
+ template <typename CharacterType>
+ inline void detectMediaQueryToken(int);
+ template <typename CharacterType>
+ inline void detectNumberToken(CharacterType*, int);
+ template <typename CharacterType>
+ inline void detectDashToken(int);
+ template <typename CharacterType>
+ inline void detectAtToken(int, bool);
+ template <typename CharacterType>
+ inline void detectSupportsToken(int);
+
+ template <typename CharacterType>
+ inline void setRuleHeaderEnd(const CharacterType*);
+
+ void setStyleSheet(StyleSheetContents* styleSheet) { m_styleSheet = styleSheet; }
+
+ inline bool inStrictMode() const { return m_context.mode == CSSStrictMode || m_context.mode == SVGAttributeMode; }
+ inline bool inQuirksMode() const { return m_context.mode == CSSQuirksMode; }
+
+ URL completeURL(const String& url) const;
+
+ void recheckAtKeyword(const UChar* str, int len);
+
+ template<unsigned prefixLength, unsigned suffixLength>
+ void setupParser(const char (&prefix)[prefixLength], StringView string, const char (&suffix)[suffixLength])
+ {
+ setupParser(prefix, prefixLength - 1, string, suffix, suffixLength - 1);
+ }
+ void setupParser(const char* prefix, unsigned prefixLength, StringView, const char* suffix, unsigned suffixLength);
+ bool inShorthand() const { return m_inParseShorthand; }
+
+ bool isValidSize(ValueWithCalculation&);
+
+ bool isGeneratedImageValue(CSSParserValue&) const;
+ bool parseGeneratedImage(CSSParserValueList&, RefPtr<CSSValue>&);
+
+ ParseResult parseValue(MutableStyleProperties&, CSSPropertyID, const String&, bool important, StyleSheetContents* contextStyleSheet);
+ Ref<ImmutableStyleProperties> parseDeclaration(const String&, StyleSheetContents* contextStyleSheet);
+
+ RefPtr<CSSBasicShapeInset> parseInsetRoundedCorners(Ref<CSSBasicShapeInset>&&, CSSParserValueList&);
+
+ enum SizeParameterType {
+ None,
+ Auto,
+ Length,
+ PageSize,
+ Orientation,
+ };
+
+ bool parsePage(CSSPropertyID propId, bool important);
+ bool parseSize(CSSPropertyID propId, bool important);
+ SizeParameterType parseSizeParameter(CSSValueList& parsedValues, CSSParserValue&, SizeParameterType prevParamType);
+
+#if ENABLE(CSS_SCROLL_SNAP)
+ bool parseNonElementSnapPoints(CSSPropertyID propId, bool important);
+ bool parseScrollSnapDestination(CSSPropertyID propId, bool important);
+ bool parseScrollSnapCoordinate(CSSPropertyID propId, bool important);
+ bool parseScrollSnapPositions(RefPtr<CSSValue>& cssValueX, RefPtr<CSSValue>& cssValueY);
+#endif
+
+ bool parseFontFaceSrcURI(CSSValueList&);
+ bool parseFontFaceSrcLocal(CSSValueList&);
+
+ bool parseColor(const String&);
+
+#if ENABLE(CSS_GRID_LAYOUT)
+ bool parseIntegerOrCustomIdentFromGridPosition(RefPtr<CSSPrimitiveValue>& numericValue, RefPtr<CSSPrimitiveValue>& gridLineName);
+#endif
+
+ enum ParsingMode {
+ NormalMode,
+ MediaQueryMode,
+ SupportsMode,
+ NthChildMode
+ };
+
+ ParsingMode m_parsingMode { NormalMode };
+ bool m_is8BitSource { false };
+ std::unique_ptr<LChar[]> m_dataStart8;
+ std::unique_ptr<UChar[]> m_dataStart16;
+ LChar* m_currentCharacter8 { nullptr };
+ UChar* m_currentCharacter16 { nullptr };
+ union {
+ LChar* ptr8;
+ UChar* ptr16;
+ } m_tokenStart { nullptr };
+ unsigned m_length { 0 };
+ int m_token { 0 };
+ int m_lineNumber { 0 };
+ int m_tokenStartLineNumber { 0 };
+ int m_tokenStartColumnNumber { 0 };
+ int m_lastSelectorLineNumber { 0 };
+ int m_columnOffsetForLine { 0 };
+
+ int m_sheetStartLineNumber { 0 };
+ int m_sheetStartColumnNumber { 0 };
+
+ bool m_allowImportRules { true };
+ bool m_allowNamespaceDeclarations { true };
+
+#if ENABLE(CSS_DEVICE_ADAPTATION)
+ bool parseViewportProperty(CSSPropertyID propId, bool important);
+ bool parseViewportShorthand(CSSPropertyID propId, CSSPropertyID first, CSSPropertyID second, bool important);
+
+ bool inViewport() const { return m_inViewport; }
+ bool m_inViewport { false };
+#endif
+
+ bool useLegacyBackgroundSizeShorthandBehavior() const;
+
+ int (CSSParser::*m_lexFunc)(void*);
+
+ std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> m_recycledSelectorVector;
+
+ std::unique_ptr<RuleSourceDataList> m_supportsRuleDataStack;
+
+ // defines units allowed for a certain property, used in parseUnit
+ enum Units {
+ FUnknown = 0x0000,
+ FInteger = 0x0001,
+ FNumber = 0x0002, // Real Numbers
+ FPercent = 0x0004,
+ FLength = 0x0008,
+ FAngle = 0x0010,
+ FTime = 0x0020,
+ FFrequency = 0x0040,
+ FPositiveInteger = 0x0080,
+ FRelative = 0x0100,
+#if ENABLE(CSS_IMAGE_RESOLUTION) || ENABLE(RESOLUTION_MEDIA_QUERY)
+ FResolution = 0x0200,
+#endif
+ FNonNeg = 0x0400
+ };
+
+ friend inline Units operator|(Units a, Units b)
+ {
+ return static_cast<Units>(static_cast<unsigned>(a) | static_cast<unsigned>(b));
+ }
+
+ enum ReleaseParsedCalcValueCondition {
+ ReleaseParsedCalcValue,
+ DoNotReleaseParsedCalcValue
+ };
+
+ bool isLoggingErrors();
+ void logError(const String& message, int lineNumber, int columnNumber);
+
+ bool validateCalculationUnit(ValueWithCalculation&, Units);
+
+ bool shouldAcceptUnitLessValues(CSSParserValue&, Units, CSSParserMode);
+
+ inline bool validateUnit(ValueWithCalculation& value, Units unitFlags) { return validateUnit(value, unitFlags, m_context.mode); }
+ bool validateUnit(ValueWithCalculation&, Units, CSSParserMode);
+
+ bool parseBorderImageQuad(Units, RefPtr<CSSPrimitiveValue>&);
+ int colorIntFromValue(ValueWithCalculation&);
+ double parsedDouble(ValueWithCalculation&);
+
+ friend class TransformOperationInfo;
+ friend class FilterOperationInfo;
+};
+
+CSSPropertyID cssPropertyID(const CSSParserString&);
+CSSPropertyID cssPropertyID(const String&);
+CSSValueID cssValueKeywordID(const CSSParserString&);
+#if PLATFORM(IOS)
+void cssPropertyNameIOSAliasing(const char* propertyName, const char*& propertyNameAlias, unsigned& newLength);
+#endif
+
+class ShorthandScope {
+ WTF_MAKE_FAST_ALLOCATED;
+public:
+ ShorthandScope(CSSParser* parser, CSSPropertyID propId) : m_parser(parser)
+ {
+ if (!(m_parser->m_inParseShorthand++))
+ m_parser->m_currentShorthand = propId;
+ }
+ ~ShorthandScope()
+ {
+ if (!(--m_parser->m_inParseShorthand))
+ m_parser->m_currentShorthand = CSSPropertyInvalid;
+ }
+
+private:
+ CSSParser* m_parser;
+};
+
+struct CSSParser::Location {
+ int lineNumber;
+ int columnNumber;
+ CSSParserString token;
+};
+
+String quoteCSSString(const String&);
+String quoteCSSStringIfNeeded(const String&);
+String quoteCSSURLIfNeeded(const String&);
+
+bool isValidNthToken(const CSSParserString&);
+
+template <>
+inline void CSSParser::setTokenStart<LChar>(LChar* tokenStart)
+{
+ m_tokenStart.ptr8 = tokenStart;
+}
+
+template <>
+inline void CSSParser::setTokenStart<UChar>(UChar* tokenStart)
+{
+ m_tokenStart.ptr16 = tokenStart;
+}
+
+inline unsigned CSSParser::tokenStartOffset()
+{
+ if (is8BitSource())
+ return m_tokenStart.ptr8 - m_dataStart8.get();
+ return m_tokenStart.ptr16 - m_dataStart16.get();
+}
+
+unsigned CSSParser::currentCharacterOffset()
+{
+ if (is8BitSource())
+ return m_currentCharacter8 - m_dataStart8.get();
+ return m_currentCharacter16 - m_dataStart16.get();
+}
+
+inline UChar CSSParser::tokenStartChar()
+{
+ if (is8BitSource())
+ return *m_tokenStart.ptr8;
+ return *m_tokenStart.ptr16;
+}
+
+inline bool isCustomPropertyName(const String& propertyName)
+{
+ return propertyName.length() > 2 && propertyName.characterAt(0) == '-' && propertyName.characterAt(1) == '-';
+}
+
+inline int cssyylex(void* yylval, CSSParser* parser)
+{
+ return parser->lex(yylval);
+}
+
+} // namespace WebCore
</ins></span></pre></div>
<a id="trunkSourceWebCorecssparserCSSParserModehfromrev204839trunkSourceWebCorecssCSSParserModeh"></a>
<div class="copfile"><h4>Copied: trunk/Source/WebCore/css/parser/CSSParserMode.h (from rev 204839, trunk/Source/WebCore/css/CSSParserMode.h) (0 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/parser/CSSParserMode.h (rev 0)
+++ trunk/Source/WebCore/css/parser/CSSParserMode.h 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -0,0 +1,86 @@
</span><ins>+/*
+ * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
+ * Copyright (C) 2012 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef CSSParserMode_h
+#define CSSParserMode_h
+
+#include "URL.h"
+
+namespace WebCore {
+
+class Document;
+
+enum CSSParserMode {
+ CSSQuirksMode,
+ CSSStrictMode,
+ // SVG should always be in strict mode. For SVG attributes, the rules differ to strict sometimes.
+ SVGAttributeMode
+};
+
+inline CSSParserMode strictToCSSParserMode(bool inStrictMode)
+{
+ return inStrictMode ? CSSStrictMode : CSSQuirksMode;
+}
+
+inline bool isStrictParserMode(CSSParserMode cssParserMode)
+{
+ return cssParserMode == CSSStrictMode || cssParserMode == SVGAttributeMode;
+}
+
+struct CSSParserContext {
+ WTF_MAKE_FAST_ALLOCATED;
+public:
+ CSSParserContext(CSSParserMode, const URL& baseURL = URL());
+ WEBCORE_EXPORT CSSParserContext(Document&, const URL& baseURL = URL(), const String& charset = emptyString());
+
+ URL baseURL;
+ String charset;
+ CSSParserMode mode { CSSStrictMode };
+ bool isHTMLDocument { false };
+#if ENABLE(CSS_GRID_LAYOUT)
+ bool cssGridLayoutEnabled { false };
+#endif
+#if ENABLE(IOS_TEXT_AUTOSIZING)
+ bool textAutosizingEnabled { false };
+#endif
+ bool needsSiteSpecificQuirks { false };
+ bool enforcesCSSMIMETypeInNoQuirksMode { true };
+ bool useLegacyBackgroundSizeShorthandBehavior { false };
+ bool springTimingFunctionEnabled { false };
+};
+
+bool operator==(const CSSParserContext&, const CSSParserContext&);
+inline bool operator!=(const CSSParserContext& a, const CSSParserContext& b) { return !(a == b); }
+
+WEBCORE_EXPORT const CSSParserContext& strictCSSParserContext();
+
+};
+
+#endif // CSSParserMode_h
</ins></span></pre></div>
<a id="trunkSourceWebCorecssparserCSSParserValuescppfromrev204839trunkSourceWebCorecssCSSParserValuescpp"></a>
<div class="copfile"><h4>Copied: trunk/Source/WebCore/css/parser/CSSParserValues.cpp (from rev 204839, trunk/Source/WebCore/css/CSSParserValues.cpp) (0 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/parser/CSSParserValues.cpp (rev 0)
+++ trunk/Source/WebCore/css/parser/CSSParserValues.cpp 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -0,0 +1,446 @@
</span><ins>+/*
+ * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2008, 2014 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "CSSParserValues.h"
+
+#include "CSSCustomPropertyValue.h"
+#include "CSSPrimitiveValue.h"
+#include "CSSFunctionValue.h"
+#include "CSSSelector.h"
+#include "CSSSelectorList.h"
+#include "CSSVariableValue.h"
+#include "SelectorPseudoTypeMap.h"
+
+namespace WebCore {
+
+using namespace WTF;
+
+void destroy(const CSSParserValue& value)
+{
+ if (value.unit == CSSParserValue::Function)
+ delete value.function;
+ else if (value.unit == CSSParserValue::ValueList)
+ delete value.valueList;
+ else if (value.unit == CSSParserValue::Variable)
+ delete value.variable;
+}
+
+CSSParserValueList::~CSSParserValueList()
+{
+ for (auto& value : m_values)
+ destroy(value);
+}
+
+void CSSParserValueList::addValue(const CSSParserValue& value)
+{
+ m_values.append(value);
+}
+
+void CSSParserValueList::insertValueAt(unsigned i, const CSSParserValue& value)
+{
+ m_values.insert(i, value);
+}
+
+void CSSParserValueList::extend(CSSParserValueList& other)
+{
+ for (auto& value : other.m_values) {
+ m_values.append(value);
+ value.unit = 0; // We moved the CSSParserValue from the other list; this acts like std::move.
+ }
+}
+
+bool CSSParserValueList::containsVariables() const
+{
+ for (unsigned i = 0; i < size(); i++) {
+ auto* parserValue = &m_values[i];
+ if (parserValue->unit == CSSParserValue::Variable)
+ return true;
+ if (parserValue->unit == CSSParserValue::Function && parserValue->function->args
+ && parserValue->function->args->containsVariables())
+ return true;
+ if (parserValue->unit == CSSParserValue::ValueList && parserValue->valueList->containsVariables())
+ return true;
+ }
+ return false;
+}
+
+RefPtr<CSSValue> CSSParserValue::createCSSValue()
+{
+ RefPtr<CSSValue> parsedValue;
+ if (id)
+ return CSSPrimitiveValue::createIdentifier(id);
+
+ if (unit == CSSParserValue::Operator) {
+ auto primitiveValue = CSSPrimitiveValue::createParserOperator(iValue);
+ primitiveValue->setPrimitiveType(CSSPrimitiveValue::CSS_PARSER_OPERATOR);
+ return WTFMove(primitiveValue);
+ }
+ if (unit == CSSParserValue::Function)
+ return CSSFunctionValue::create(function);
+ if (unit == CSSParserValue::Variable)
+ return CSSVariableValue::create(variable);
+ if (unit == CSSParserValue::ValueList)
+ return CSSValueList::createFromParserValueList(*valueList);
+
+ if (unit >= CSSParserValue::Q_EMS)
+ return CSSPrimitiveValue::createAllowingMarginQuirk(fValue, CSSPrimitiveValue::CSS_EMS);
+
+ CSSPrimitiveValue::UnitTypes primitiveUnit = static_cast<CSSPrimitiveValue::UnitTypes>(unit);
+ switch (primitiveUnit) {
+ case CSSPrimitiveValue::CSS_IDENT:
+ case CSSPrimitiveValue::CSS_PROPERTY_ID:
+ case CSSPrimitiveValue::CSS_VALUE_ID:
+ return CSSPrimitiveValue::create(string, CSSPrimitiveValue::CSS_PARSER_IDENTIFIER);
+ case CSSPrimitiveValue::CSS_NUMBER:
+ return CSSPrimitiveValue::create(fValue, isInt ? CSSPrimitiveValue::CSS_PARSER_INTEGER : CSSPrimitiveValue::CSS_NUMBER);
+ case CSSPrimitiveValue::CSS_STRING:
+ case CSSPrimitiveValue::CSS_URI:
+ case CSSPrimitiveValue::CSS_PARSER_HEXCOLOR:
+ case CSSPrimitiveValue::CSS_DIMENSION:
+ case CSSPrimitiveValue::CSS_UNICODE_RANGE:
+ case CSSPrimitiveValue::CSS_PARSER_WHITESPACE:
+ return CSSPrimitiveValue::create(string, primitiveUnit);
+ case CSSPrimitiveValue::CSS_PERCENTAGE:
+ case CSSPrimitiveValue::CSS_EMS:
+ case CSSPrimitiveValue::CSS_EXS:
+ case CSSPrimitiveValue::CSS_PX:
+ case CSSPrimitiveValue::CSS_CM:
+ case CSSPrimitiveValue::CSS_MM:
+ case CSSPrimitiveValue::CSS_IN:
+ case CSSPrimitiveValue::CSS_PT:
+ case CSSPrimitiveValue::CSS_PC:
+ case CSSPrimitiveValue::CSS_DEG:
+ case CSSPrimitiveValue::CSS_RAD:
+ case CSSPrimitiveValue::CSS_GRAD:
+ case CSSPrimitiveValue::CSS_MS:
+ case CSSPrimitiveValue::CSS_S:
+ case CSSPrimitiveValue::CSS_HZ:
+ case CSSPrimitiveValue::CSS_KHZ:
+ case CSSPrimitiveValue::CSS_VW:
+ case CSSPrimitiveValue::CSS_VH:
+ case CSSPrimitiveValue::CSS_VMIN:
+ case CSSPrimitiveValue::CSS_VMAX:
+ case CSSPrimitiveValue::CSS_TURN:
+ case CSSPrimitiveValue::CSS_REMS:
+ case CSSPrimitiveValue::CSS_CHS:
+ case CSSPrimitiveValue::CSS_FR:
+ return CSSPrimitiveValue::create(fValue, primitiveUnit);
+ case CSSPrimitiveValue::CSS_UNKNOWN:
+ case CSSPrimitiveValue::CSS_ATTR:
+ case CSSPrimitiveValue::CSS_COUNTER:
+ case CSSPrimitiveValue::CSS_RECT:
+ case CSSPrimitiveValue::CSS_RGBCOLOR:
+ case CSSPrimitiveValue::CSS_DPPX:
+ case CSSPrimitiveValue::CSS_DPI:
+ case CSSPrimitiveValue::CSS_DPCM:
+ case CSSPrimitiveValue::CSS_PAIR:
+#if ENABLE(DASHBOARD_SUPPORT)
+ case CSSPrimitiveValue::CSS_DASHBOARD_REGION:
+#endif
+ case CSSPrimitiveValue::CSS_PARSER_OPERATOR:
+ case CSSPrimitiveValue::CSS_PARSER_INTEGER:
+ case CSSPrimitiveValue::CSS_PARSER_IDENTIFIER:
+ case CSSPrimitiveValue::CSS_COUNTER_NAME:
+ case CSSPrimitiveValue::CSS_SHAPE:
+ case CSSPrimitiveValue::CSS_FONT_FAMILY:
+ case CSSPrimitiveValue::CSS_QUAD:
+#if ENABLE(CSS_SCROLL_SNAP)
+ case CSSPrimitiveValue::CSS_LENGTH_REPEAT:
+#endif
+ case CSSPrimitiveValue::CSS_CALC:
+ case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_NUMBER:
+ case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_LENGTH:
+ return nullptr;
+ }
+
+ ASSERT_NOT_REACHED();
+ return nullptr;
+}
+
+CSSParserSelector* CSSParserSelector::parsePagePseudoSelector(const CSSParserString& pseudoTypeString)
+{
+ CSSSelector::PagePseudoClassType pseudoType;
+ if (equalLettersIgnoringASCIICase(pseudoTypeString, "first"))
+ pseudoType = CSSSelector::PagePseudoClassFirst;
+ else if (equalLettersIgnoringASCIICase(pseudoTypeString, "left"))
+ pseudoType = CSSSelector::PagePseudoClassLeft;
+ else if (equalLettersIgnoringASCIICase(pseudoTypeString, "right"))
+ pseudoType = CSSSelector::PagePseudoClassRight;
+ else
+ return nullptr;
+
+ auto selector = std::make_unique<CSSParserSelector>();
+ selector->m_selector->setMatch(CSSSelector::PagePseudoClass);
+ selector->m_selector->setPagePseudoType(pseudoType);
+ return selector.release();
+}
+
+CSSParserSelector* CSSParserSelector::parsePseudoElementSelector(CSSParserString& pseudoTypeString)
+{
+ pseudoTypeString.convertToASCIILowercaseInPlace();
+ AtomicString name = pseudoTypeString;
+
+ CSSSelector::PseudoElementType pseudoType = CSSSelector::parsePseudoElementType(name);
+ if (pseudoType == CSSSelector::PseudoElementUnknown)
+ return nullptr;
+
+ auto selector = std::make_unique<CSSParserSelector>();
+ selector->m_selector->setMatch(CSSSelector::PseudoElement);
+ selector->m_selector->setPseudoElementType(pseudoType);
+ if (pseudoType == CSSSelector::PseudoElementWebKitCustomLegacyPrefixed) {
+ ASSERT_WITH_MESSAGE(name == "-webkit-input-placeholder", "-webkit-input-placeholder is the only LegacyPrefix pseudo type.");
+ if (name == "-webkit-input-placeholder")
+ name = AtomicString("placeholder", AtomicString::ConstructFromLiteral);
+ }
+ selector->m_selector->setValue(name);
+ return selector.release();
+}
+
+#if ENABLE(VIDEO_TRACK)
+CSSParserSelector* CSSParserSelector::parsePseudoElementCueFunctionSelector(const CSSParserString& functionIdentifier, Vector<std::unique_ptr<CSSParserSelector>>* parsedSelectorVector)
+{
+ ASSERT_UNUSED(functionIdentifier, String(functionIdentifier) == "cue(");
+
+ std::unique_ptr<Vector<std::unique_ptr<CSSParserSelector>>> selectorVector(parsedSelectorVector);
+
+ if (!selectorVector)
+ return nullptr;
+
+ auto selector = std::make_unique<CSSParserSelector>();
+ selector->m_selector->setMatch(CSSSelector::PseudoElement);
+ selector->m_selector->setPseudoElementType(CSSSelector::PseudoElementCue);
+ selector->adoptSelectorVector(*selectorVector);
+ return selector.release();
+}
+#endif
+
+CSSParserSelector* CSSParserSelector::parsePseudoElementSlottedFunctionSelector(const CSSParserString& functionIdentifier, CSSParserSelector* parsedSelector)
+{
+ ASSERT_UNUSED(functionIdentifier, String(functionIdentifier) == "slotted(");
+
+ if (!parsedSelector)
+ return nullptr;
+
+ std::unique_ptr<CSSParserSelector> ownedParsedSelector(parsedSelector);
+
+ for (auto* component = parsedSelector; component; component = component->tagHistory()) {
+ if (component->matchesPseudoElement())
+ return nullptr;
+ }
+
+ auto selectorVector = std::make_unique<Vector<std::unique_ptr<CSSParserSelector>>>();
+ selectorVector->append(WTFMove(ownedParsedSelector));
+
+ auto selector = std::make_unique<CSSParserSelector>();
+ selector->m_selector->setMatch(CSSSelector::PseudoElement);
+ selector->m_selector->setPseudoElementType(CSSSelector::PseudoElementSlotted);
+ selector->adoptSelectorVector(*selectorVector);
+ return selector.release();
+}
+
+CSSParserSelector* CSSParserSelector::parsePseudoClassHostFunctionSelector(const CSSParserString& functionIdentifier, CSSParserSelector* parsedSelector)
+{
+ ASSERT_UNUSED(functionIdentifier, String(functionIdentifier) == "host(");
+
+ if (!parsedSelector)
+ return nullptr;
+
+ std::unique_ptr<CSSParserSelector> ownedParsedSelector(parsedSelector);
+
+ for (auto* component = parsedSelector; component; component = component->tagHistory()) {
+ if (component->matchesPseudoElement())
+ return nullptr;
+ }
+
+ auto selectorVector = std::make_unique<Vector<std::unique_ptr<CSSParserSelector>>>();
+ selectorVector->append(WTFMove(ownedParsedSelector));
+
+ auto selector = std::make_unique<CSSParserSelector>();
+ selector->m_selector->setMatch(CSSSelector::PseudoClass);
+ selector->m_selector->setPseudoClassType(CSSSelector::PseudoClassHost);
+ selector->adoptSelectorVector(*selectorVector);
+ return selector.release();
+}
+
+CSSParserSelector* CSSParserSelector::parsePseudoClassAndCompatibilityElementSelector(CSSParserString& pseudoTypeString)
+{
+ if (pseudoTypeString.length() && pseudoTypeString[pseudoTypeString.length() - 1] == '(')
+ return nullptr;
+
+ PseudoClassOrCompatibilityPseudoElement pseudoType = parsePseudoClassAndCompatibilityElementString(pseudoTypeString);
+ if (pseudoType.pseudoClass != CSSSelector::PseudoClassUnknown) {
+ auto selector = std::make_unique<CSSParserSelector>();
+ selector->m_selector->setMatch(CSSSelector::PseudoClass);
+ selector->m_selector->setPseudoClassType(pseudoType.pseudoClass);
+ return selector.release();
+ }
+ if (pseudoType.compatibilityPseudoElement != CSSSelector::PseudoElementUnknown) {
+ auto selector = std::make_unique<CSSParserSelector>();
+ selector->m_selector->setMatch(CSSSelector::PseudoElement);
+ selector->m_selector->setPseudoElementType(pseudoType.compatibilityPseudoElement);
+ AtomicString name = pseudoTypeString;
+ selector->m_selector->setValue(name);
+ return selector.release();
+ }
+ return nullptr;
+}
+
+CSSParserSelector::CSSParserSelector()
+ : m_selector(std::make_unique<CSSSelector>())
+{
+}
+
+CSSParserSelector::CSSParserSelector(const QualifiedName& tagQName)
+ : m_selector(std::make_unique<CSSSelector>(tagQName))
+{
+}
+
+CSSParserSelector::~CSSParserSelector()
+{
+ if (!m_tagHistory)
+ return;
+ Vector<std::unique_ptr<CSSParserSelector>, 16> toDelete;
+ std::unique_ptr<CSSParserSelector> selector = WTFMove(m_tagHistory);
+ while (true) {
+ std::unique_ptr<CSSParserSelector> next = WTFMove(selector->m_tagHistory);
+ toDelete.append(WTFMove(selector));
+ if (!next)
+ break;
+ selector = WTFMove(next);
+ }
+}
+
+void CSSParserSelector::adoptSelectorVector(Vector<std::unique_ptr<CSSParserSelector>>& selectorVector)
+{
+ auto selectorList = std::make_unique<CSSSelectorList>();
+ selectorList->adoptSelectorVector(selectorVector);
+ m_selector->setSelectorList(WTFMove(selectorList));
+}
+
+void CSSParserSelector::setLangArgumentList(const Vector<CSSParserString>& stringVector)
+{
+ ASSERT_WITH_MESSAGE(!stringVector.isEmpty(), "No CSS Selector takes an empty argument list.");
+ auto argumentList = std::make_unique<Vector<AtomicString>>();
+ argumentList->reserveInitialCapacity(stringVector.size());
+ for (const AtomicString& languageArgument : stringVector)
+ argumentList->append(languageArgument);
+ m_selector->setLangArgumentList(WTFMove(argumentList));
+}
+
+void CSSParserSelector::setPseudoClassValue(const CSSParserString& pseudoClassString)
+{
+ ASSERT(m_selector->match() == CSSSelector::PseudoClass);
+
+ PseudoClassOrCompatibilityPseudoElement pseudoType = parsePseudoClassAndCompatibilityElementString(pseudoClassString);
+ m_selector->setPseudoClassType(pseudoType.pseudoClass);
+}
+
+static bool selectorListMatchesPseudoElement(const CSSSelectorList* selectorList)
+{
+ if (!selectorList)
+ return false;
+
+ for (const CSSSelector* subSelector = selectorList->first(); subSelector; subSelector = CSSSelectorList::next(subSelector)) {
+ for (const CSSSelector* selector = subSelector; selector; selector = selector->tagHistory()) {
+ if (selector->matchesPseudoElement())
+ return true;
+ if (const CSSSelectorList* subselectorList = selector->selectorList()) {
+ if (selectorListMatchesPseudoElement(subselectorList))
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+bool CSSParserSelector::matchesPseudoElement() const
+{
+ return m_selector->matchesPseudoElement() || selectorListMatchesPseudoElement(m_selector->selectorList());
+}
+
+void CSSParserSelector::insertTagHistory(CSSSelector::Relation before, std::unique_ptr<CSSParserSelector> selector, CSSSelector::Relation after)
+{
+ if (m_tagHistory)
+ selector->setTagHistory(WTFMove(m_tagHistory));
+ setRelation(before);
+ selector->setRelation(after);
+ m_tagHistory = WTFMove(selector);
+}
+
+void CSSParserSelector::appendTagHistory(CSSSelector::Relation relation, std::unique_ptr<CSSParserSelector> selector)
+{
+ CSSParserSelector* end = this;
+ while (end->tagHistory())
+ end = end->tagHistory();
+
+ end->setRelation(relation);
+ end->setTagHistory(WTFMove(selector));
+}
+
+void CSSParserSelector::appendTagHistory(CSSParserSelectorCombinator relation, std::unique_ptr<CSSParserSelector> selector)
+{
+ CSSParserSelector* end = this;
+ while (end->tagHistory())
+ end = end->tagHistory();
+
+ CSSSelector::Relation selectorRelation;
+ switch (relation) {
+ case CSSParserSelectorCombinator::Child:
+ selectorRelation = CSSSelector::Child;
+ break;
+ case CSSParserSelectorCombinator::DescendantSpace:
+ selectorRelation = CSSSelector::Descendant;
+ break;
+#if ENABLE(CSS_SELECTORS_LEVEL4)
+ case CSSParserSelectorCombinator::DescendantDoubleChild:
+ selectorRelation = CSSSelector::Descendant;
+ break;
+#endif
+ case CSSParserSelectorCombinator::DirectAdjacent:
+ selectorRelation = CSSSelector::DirectAdjacent;
+ break;
+ case CSSParserSelectorCombinator::IndirectAdjacent:
+ selectorRelation = CSSSelector::IndirectAdjacent;
+ break;
+ }
+ end->setRelation(selectorRelation);
+
+#if ENABLE(CSS_SELECTORS_LEVEL4)
+ if (relation == CSSParserSelectorCombinator::DescendantDoubleChild)
+ end->setDescendantUseDoubleChildSyntax();
+#endif
+
+ end->setTagHistory(WTFMove(selector));
+}
+
+void CSSParserSelector::prependTagSelector(const QualifiedName& tagQName, bool tagIsForNamespaceRule)
+{
+ auto second = std::make_unique<CSSParserSelector>();
+ second->m_selector = WTFMove(m_selector);
+ second->m_tagHistory = WTFMove(m_tagHistory);
+ m_tagHistory = WTFMove(second);
+
+ m_selector = std::make_unique<CSSSelector>(tagQName, tagIsForNamespaceRule);
+ m_selector->setRelation(CSSSelector::SubSelector);
+}
+
+}
+
</ins></span></pre></div>
<a id="trunkSourceWebCorecssparserCSSParserValueshfromrev204839trunkSourceWebCorecssCSSParserValuesh"></a>
<div class="copfile"><h4>Copied: trunk/Source/WebCore/css/parser/CSSParserValues.h (from rev 204839, trunk/Source/WebCore/css/CSSParserValues.h) (0 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/parser/CSSParserValues.h (rev 0)
+++ trunk/Source/WebCore/css/parser/CSSParserValues.h 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -0,0 +1,276 @@
</span><ins>+/*
+ * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010, 2014 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#pragma once
+
+#include "CSSSelector.h"
+#include "CSSValueKeywords.h"
+#include "CSSValueList.h"
+#include <wtf/text/AtomicString.h>
+#include <wtf/text/AtomicStringHash.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+class CSSValue;
+class QualifiedName;
+
+// This should be a StringView but currently it can't because it's used as an element of a union in CSSParserValue.
+struct CSSParserString {
+ void init(LChar* characters, unsigned length)
+ {
+ m_data.characters8 = characters;
+ m_length = length;
+ m_is8Bit = true;
+ }
+
+ void init(UChar* characters, unsigned length)
+ {
+ m_data.characters16 = characters;
+ m_length = length;
+ m_is8Bit = false;
+ }
+
+ void init(const String& string)
+ {
+ m_length = string.length();
+ if (!m_length || string.is8Bit()) {
+ m_data.characters8 = const_cast<LChar*>(string.characters8());
+ m_is8Bit = true;
+ } else {
+ m_data.characters16 = const_cast<UChar*>(string.characters16());
+ m_is8Bit = false;
+ }
+ }
+
+ void clear()
+ {
+ m_data.characters8 = 0;
+ m_length = 0;
+ m_is8Bit = true;
+ }
+
+ bool is8Bit() const { return m_is8Bit; }
+ LChar* characters8() const { ASSERT(is8Bit()); return m_data.characters8; }
+ UChar* characters16() const { ASSERT(!is8Bit()); return m_data.characters16; }
+ template<typename CharacterType> CharacterType* characters() const;
+
+ unsigned length() const { return m_length; }
+ void setLength(unsigned length) { m_length = length; }
+
+ void convertToASCIILowercaseInPlace();
+
+ UChar operator[](unsigned i) const
+ {
+ ASSERT_WITH_SECURITY_IMPLICATION(i < m_length);
+ if (is8Bit())
+ return m_data.characters8[i];
+ return m_data.characters16[i];
+ }
+
+ operator String() const { return is8Bit() ? String(m_data.characters8, m_length) : String(m_data.characters16, m_length); }
+ operator AtomicString() const { return is8Bit() ? AtomicString(m_data.characters8, m_length) : AtomicString(m_data.characters16, m_length); }
+
+ union {
+ LChar* characters8;
+ UChar* characters16;
+ } m_data;
+ unsigned m_length;
+ bool m_is8Bit;
+};
+
+template<unsigned length> bool equalLettersIgnoringASCIICase(const CSSParserString&, const char (&lowercaseLetters)[length]);
+
+struct CSSParserFunction;
+struct CSSParserVariable;
+
+struct CSSParserValue {
+ CSSValueID id;
+ bool isInt;
+ union {
+ double fValue;
+ int iValue;
+ CSSParserString string;
+ CSSParserFunction* function;
+ CSSParserVariable* variable;
+ CSSParserValueList* valueList;
+ };
+ enum {
+ Operator = 0x100000,
+ Function = 0x100001,
+ ValueList = 0x100002,
+ Q_EMS = 0x100003,
+ Variable = 0x100004
+ };
+ int unit;
+
+ void setFromValueList(std::unique_ptr<CSSParserValueList>);
+
+ RefPtr<CSSValue> createCSSValue();
+};
+
+void destroy(const CSSParserValue&);
+
+class CSSParserValueList {
+ WTF_MAKE_FAST_ALLOCATED;
+public:
+ CSSParserValueList()
+ : m_current(0)
+ {
+ }
+ ~CSSParserValueList();
+
+ void addValue(const CSSParserValue&);
+ void insertValueAt(unsigned, const CSSParserValue&);
+ void extend(CSSParserValueList&);
+
+ unsigned size() const { return m_values.size(); }
+ unsigned currentIndex() { return m_current; }
+ CSSParserValue* current() { return m_current < m_values.size() ? &m_values[m_current] : 0; }
+ CSSParserValue* next() { ++m_current; return current(); }
+ CSSParserValue* previous()
+ {
+ if (!m_current)
+ return 0;
+ --m_current;
+ return current();
+ }
+ void setCurrentIndex(unsigned index)
+ {
+ ASSERT(index < m_values.size());
+ if (index < m_values.size())
+ m_current = index;
+ }
+
+ CSSParserValue* valueAt(unsigned i) { return i < m_values.size() ? &m_values[i] : 0; }
+
+ void clear() { m_values.clear(); }
+
+ String toString();
+
+ bool containsVariables() const;
+
+private:
+ unsigned m_current;
+ Vector<CSSParserValue, 4> m_values;
+};
+
+struct CSSParserFunction {
+ WTF_MAKE_FAST_ALLOCATED;
+public:
+ CSSParserString name;
+ std::unique_ptr<CSSParserValueList> args;
+};
+
+struct CSSParserVariable {
+ WTF_MAKE_FAST_ALLOCATED;
+public:
+ CSSParserString name; // The custom property name
+ std::unique_ptr<CSSParserValueList> args; // The fallback args
+};
+
+enum class CSSParserSelectorCombinator {
+ Child,
+ DescendantSpace,
+#if ENABLE(CSS_SELECTORS_LEVEL4)
+ DescendantDoubleChild,
+#endif
+ DirectAdjacent,
+ IndirectAdjacent
+};
+
+class CSSParserSelector {
+ WTF_MAKE_FAST_ALLOCATED;
+public:
+ static CSSParserSelector* parsePagePseudoSelector(const CSSParserString& pseudoTypeString);
+ static CSSParserSelector* parsePseudoElementSelector(CSSParserString& pseudoTypeString);
+ static CSSParserSelector* parsePseudoElementCueFunctionSelector(const CSSParserString& functionIdentifier, Vector<std::unique_ptr<CSSParserSelector>>*);
+ static CSSParserSelector* parsePseudoElementSlottedFunctionSelector(const CSSParserString& functionIdentifier, CSSParserSelector*);
+ static CSSParserSelector* parsePseudoClassHostFunctionSelector(const CSSParserString& functionIdentifier, CSSParserSelector*);
+ static CSSParserSelector* parsePseudoClassAndCompatibilityElementSelector(CSSParserString& pseudoTypeString);
+
+ CSSParserSelector();
+ explicit CSSParserSelector(const QualifiedName&);
+ ~CSSParserSelector();
+
+ std::unique_ptr<CSSSelector> releaseSelector() { return WTFMove(m_selector); }
+
+ void setValue(const AtomicString& value) { m_selector->setValue(value); }
+ void setAttribute(const QualifiedName& value, bool isCaseInsensitive) { m_selector->setAttribute(value, isCaseInsensitive); }
+ void setArgument(const AtomicString& value) { m_selector->setArgument(value); }
+ void setAttributeValueMatchingIsCaseInsensitive(bool isCaseInsensitive) { m_selector->setAttributeValueMatchingIsCaseInsensitive(isCaseInsensitive); }
+ void setMatch(CSSSelector::Match value) { m_selector->setMatch(value); }
+ void setRelation(CSSSelector::Relation value) { m_selector->setRelation(value); }
+ void setForPage() { m_selector->setForPage(); }
+
+ void adoptSelectorVector(Vector<std::unique_ptr<CSSParserSelector>>& selectorVector);
+ void setLangArgumentList(const Vector<CSSParserString>& stringVector);
+
+ void setPseudoClassValue(const CSSParserString& pseudoClassString);
+ CSSSelector::PseudoClassType pseudoClassType() const { return m_selector->pseudoClassType(); }
+ bool isCustomPseudoElement() const { return m_selector->isCustomPseudoElement(); }
+
+ bool isPseudoElementCueFunction() const
+ {
+#if ENABLE(VIDEO_TRACK)
+ return m_selector->match() == CSSSelector::PseudoElement && m_selector->pseudoElementType() == CSSSelector::PseudoElementCue;
+#else
+ return false;
+#endif
+ }
+
+ bool hasShadowDescendant() const;
+ bool matchesPseudoElement() const;
+
+ CSSParserSelector* tagHistory() const { return m_tagHistory.get(); }
+ void setTagHistory(std::unique_ptr<CSSParserSelector> selector) { m_tagHistory = WTFMove(selector); }
+ void clearTagHistory() { m_tagHistory.reset(); }
+ void insertTagHistory(CSSSelector::Relation before, std::unique_ptr<CSSParserSelector>, CSSSelector::Relation after);
+ void appendTagHistory(CSSSelector::Relation, std::unique_ptr<CSSParserSelector>);
+ void appendTagHistory(CSSParserSelectorCombinator, std::unique_ptr<CSSParserSelector>);
+ void prependTagSelector(const QualifiedName&, bool tagIsForNamespaceRule = false);
+
+private:
+#if ENABLE(CSS_SELECTORS_LEVEL4)
+ void setDescendantUseDoubleChildSyntax() { m_selector->setDescendantUseDoubleChildSyntax(); }
+#endif
+
+ std::unique_ptr<CSSSelector> m_selector;
+ std::unique_ptr<CSSParserSelector> m_tagHistory;
+};
+
+inline bool CSSParserSelector::hasShadowDescendant() const
+{
+ return m_selector->relation() == CSSSelector::ShadowDescendant;
+}
+
+inline void CSSParserValue::setFromValueList(std::unique_ptr<CSSParserValueList> valueList)
+{
+ id = CSSValueInvalid;
+ this->valueList = valueList.release();
+ unit = ValueList;
+}
+
+template<unsigned length> inline bool equalLettersIgnoringASCIICase(const CSSParserString& string, const char (&lowercaseLetters)[length])
+{
+ return WTF::equalLettersIgnoringASCIICaseCommon(string, lowercaseLetters);
+}
+
+}
</ins></span></pre></div>
<a id="trunkSourceWebCorecssparserSVGCSSParsercppfromrev204839trunkSourceWebCorecssSVGCSSParsercpp"></a>
<div class="copfile"><h4>Copied: trunk/Source/WebCore/css/parser/SVGCSSParser.cpp (from rev 204839, trunk/Source/WebCore/css/SVGCSSParser.cpp) (0 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/parser/SVGCSSParser.cpp (rev 0)
+++ trunk/Source/WebCore/css/parser/SVGCSSParser.cpp 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -0,0 +1,432 @@
</span><ins>+/*
+ Copyright (C) 2008 Eric Seidel <eric@webkit.org>
+ Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
+ 2004, 2005, 2007, 2010 Rob Buis <buis@kde.org>
+ Copyright (C) 2005, 2006 Apple Inc.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#include "config.h"
+
+#include "CSSInheritedValue.h"
+#include "CSSInitialValue.h"
+#include "CSSParser.h"
+#include "CSSPropertyNames.h"
+#include "CSSValueKeywords.h"
+#include "CSSValueList.h"
+#include "RenderTheme.h"
+#include "SVGPaint.h"
+
+namespace WebCore {
+
+static bool isValidSystemControlColorValue(CSSValueID id)
+{
+ return id >= CSSValueActiveborder && CSSParser::isValidSystemColorValue(id);
+}
+
+bool CSSParser::parseSVGValue(CSSPropertyID propId, bool important)
+{
+ if (!m_valueList->current())
+ return false;
+ ValueWithCalculation valueWithCalculation(*m_valueList->current());
+
+ CSSValueID id = valueWithCalculation.value().id;
+
+ bool valid_primitive = false;
+ RefPtr<CSSValue> parsedValue;
+
+ switch (propId) {
+ /* The comment to the right defines all valid value of these
+ * properties as defined in SVG 1.1, Appendix N. Property index */
+ case CSSPropertyAlignmentBaseline:
+ // auto | baseline | before-edge | text-before-edge | middle |
+ // central | after-edge | text-after-edge | ideographic | alphabetic |
+ // hanging | mathematical | inherit
+ if (id == CSSValueAuto || id == CSSValueBaseline || id == CSSValueMiddle ||
+ (id >= CSSValueBeforeEdge && id <= CSSValueMathematical))
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyBaselineShift:
+ // baseline | super | sub | <percentage> | <length> | inherit
+ if (id == CSSValueBaseline || id == CSSValueSub ||
+ id >= CSSValueSuper)
+ valid_primitive = true;
+ else
+ valid_primitive = validateUnit(valueWithCalculation, FLength | FPercent, SVGAttributeMode);
+ break;
+
+ case CSSPropertyDominantBaseline:
+ // auto | use-script | no-change | reset-size | ideographic |
+ // alphabetic | hanging | mathematical | central | middle |
+ // text-after-edge | text-before-edge | inherit
+ if (id == CSSValueAuto || id == CSSValueMiddle ||
+ (id >= CSSValueUseScript && id <= CSSValueResetSize) ||
+ (id >= CSSValueCentral && id <= CSSValueMathematical))
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyEnableBackground:
+ // accumulate | new [x] [y] [width] [height] | inherit
+ if (id == CSSValueAccumulate) // TODO : new
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyMarkerStart:
+ case CSSPropertyMarkerMid:
+ case CSSPropertyMarkerEnd:
+ case CSSPropertyMask:
+ if (id == CSSValueNone)
+ valid_primitive = true;
+ else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_URI) {
+ parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().string, CSSPrimitiveValue::CSS_URI);
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+
+ case CSSPropertyClipRule: // nonzero | evenodd | inherit
+ case CSSPropertyFillRule:
+ if (id == CSSValueNonzero || id == CSSValueEvenodd)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyStrokeMiterlimit: // <miterlimit> | inherit
+ valid_primitive = validateUnit(valueWithCalculation, FNumber | FNonNeg, SVGAttributeMode);
+ break;
+
+ case CSSPropertyStrokeLinejoin: // miter | round | bevel | inherit
+ if (id == CSSValueMiter || id == CSSValueRound || id == CSSValueBevel)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyStrokeLinecap: // butt | round | square | inherit
+ if (id == CSSValueButt || id == CSSValueRound || id == CSSValueSquare)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyStrokeOpacity: // <opacity-value> | inherit
+ case CSSPropertyFillOpacity:
+ case CSSPropertyStopOpacity:
+ case CSSPropertyFloodOpacity:
+ valid_primitive = (!id && validateUnit(valueWithCalculation, FNumber | FPercent, SVGAttributeMode));
+ break;
+
+ case CSSPropertyShapeRendering:
+ // auto | optimizeSpeed | crispEdges | geometricPrecision | inherit
+ if (id == CSSValueAuto || id == CSSValueOptimizespeed ||
+ id == CSSValueCrispedges || id == CSSValueGeometricprecision)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyColorRendering: // auto | optimizeSpeed | optimizeQuality | inherit
+ if (id == CSSValueAuto || id == CSSValueOptimizespeed ||
+ id == CSSValueOptimizequality)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyBufferedRendering: // auto | dynamic | static
+ if (id == CSSValueAuto || id == CSSValueDynamic || id == CSSValueStatic)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyColorProfile: // auto | sRGB | <name> | <uri> inherit
+ if (id == CSSValueAuto || id == CSSValueSrgb)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyColorInterpolation: // auto | sRGB | linearRGB | inherit
+ case CSSPropertyColorInterpolationFilters:
+ if (id == CSSValueAuto || id == CSSValueSrgb || id == CSSValueLinearrgb)
+ valid_primitive = true;
+ break;
+
+ /* Start of supported CSS properties with validation. This is needed for parseShortHand to work
+ * correctly and allows optimization in applyRule(..)
+ */
+
+ case CSSPropertyTextAnchor: // start | middle | end | inherit
+ if (id == CSSValueStart || id == CSSValueMiddle || id == CSSValueEnd)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyGlyphOrientationVertical: // auto | <angle> | inherit
+ if (id == CSSValueAuto) {
+ valid_primitive = true;
+ break;
+ }
+ FALLTHROUGH;
+
+ case CSSPropertyGlyphOrientationHorizontal: // <angle> (restricted to _deg_ per SVG 1.1 spec) | inherit
+ if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_DEG || valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_NUMBER) {
+ parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().fValue, CSSPrimitiveValue::CSS_DEG);
+
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyPaintOrder:
+ if (id == CSSValueNormal)
+ valid_primitive = true;
+ else
+ parsedValue = parsePaintOrder();
+ break;
+ case CSSPropertyFill: // <paint> | inherit
+ case CSSPropertyStroke: // <paint> | inherit
+ {
+ if (id == CSSValueNone)
+ parsedValue = SVGPaint::createNone();
+ else if (id == CSSValueCurrentcolor)
+ parsedValue = SVGPaint::createCurrentColor();
+ else if (isValidSystemControlColorValue(id) || id == CSSValueMenu)
+ parsedValue = SVGPaint::createColor(RenderTheme::defaultTheme()->systemColor(id));
+ else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_URI) {
+ RGBA32 c = Color::transparent;
+ if (m_valueList->next()) {
+ if (parseColorFromValue(*m_valueList->current(), c))
+ parsedValue = SVGPaint::createURIAndColor(valueWithCalculation.value().string, c);
+ else if (m_valueList->current()->id == CSSValueNone)
+ parsedValue = SVGPaint::createURIAndNone(valueWithCalculation.value().string);
+ }
+ if (!parsedValue)
+ parsedValue = SVGPaint::createURI(valueWithCalculation.value().string);
+ } else
+ parsedValue = parseSVGPaint();
+
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+
+ case CSSPropertyStopColor: // TODO : icccolor
+ case CSSPropertyFloodColor:
+ case CSSPropertyLightingColor:
+ if (CSSParser::isValidSystemColorValue(id)
+ || (id >= CSSValueAliceblue && id <= CSSValueYellowgreen))
+ parsedValue = SVGColor::createFromString(valueWithCalculation.value().string);
+ else if (id == CSSValueCurrentcolor)
+ parsedValue = SVGColor::createCurrentColor();
+ else // TODO : svgcolor (iccColor)
+ parsedValue = parseSVGColor();
+
+ if (parsedValue)
+ m_valueList->next();
+
+ break;
+
+ case CSSPropertyVectorEffect: // none | non-scaling-stroke | inherit
+ if (id == CSSValueNone || id == CSSValueNonScalingStroke)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyWritingMode:
+ // lr-tb | rl_tb | tb-rl | lr | rl | tb | inherit
+ if (id == CSSValueLrTb || id == CSSValueRlTb || id == CSSValueTbRl || id == CSSValueLr || id == CSSValueRl || id == CSSValueTb)
+ valid_primitive = true;
+ break;
+
+ case CSSPropertyStrokeWidth: // <length> | inherit
+ case CSSPropertyStrokeDashoffset:
+ valid_primitive = validateUnit(valueWithCalculation, FLength | FPercent, SVGAttributeMode);
+ break;
+ case CSSPropertyStrokeDasharray: // none | <dasharray> | inherit
+ if (id == CSSValueNone)
+ valid_primitive = true;
+ else
+ parsedValue = parseSVGStrokeDasharray();
+
+ break;
+
+ case CSSPropertyKerning: // auto | normal | <length> | inherit
+ if (id == CSSValueAuto || id == CSSValueNormal)
+ valid_primitive = true;
+ else
+ valid_primitive = validateUnit(valueWithCalculation, FLength, SVGAttributeMode);
+ break;
+
+ case CSSPropertyClipPath: // <uri> | none | inherit
+ case CSSPropertyFilter:
+ if (id == CSSValueNone)
+ valid_primitive = true;
+ else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_URI) {
+ parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().string, (CSSPrimitiveValue::UnitTypes) valueWithCalculation.value().unit);
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyWebkitSvgShadow:
+ if (id == CSSValueNone)
+ valid_primitive = true;
+ else {
+ auto shadowValueList = parseShadow(*m_valueList, propId);
+ if (shadowValueList) {
+ addProperty(propId, WTFMove(shadowValueList), important);
+ m_valueList->next();
+ return true;
+ }
+ return false;
+ }
+ break;
+
+ case CSSPropertyMaskType: // luminance | alpha | inherit
+ if (id == CSSValueLuminance || id == CSSValueAlpha)
+ valid_primitive = true;
+ break;
+
+ /* shorthand properties */
+ case CSSPropertyMarker:
+ {
+ ShorthandScope scope(this, propId);
+ m_implicitShorthand = true;
+ if (!parseValue(CSSPropertyMarkerStart, important))
+ return false;
+ if (m_valueList->current()) {
+ rollbackLastProperties(1);
+ return false;
+ }
+ CSSValue* value = m_parsedProperties.last().value();
+ addProperty(CSSPropertyMarkerMid, value, important);
+ addProperty(CSSPropertyMarkerEnd, value, important);
+ m_implicitShorthand = false;
+ return true;
+ }
+ case CSSPropertyCx:
+ case CSSPropertyCy:
+ case CSSPropertyR:
+ case CSSPropertyRx:
+ case CSSPropertyRy:
+ case CSSPropertyX:
+ case CSSPropertyY:
+ valid_primitive = (!id && validateUnit(valueWithCalculation, FLength | FPercent));
+ break;
+ default:
+ // If you crash here, it's because you added a css property and are not handling it
+ // in either this switch statement or the one in CSSParser::parseValue
+ ASSERT_WITH_MESSAGE(0, "unimplemented propertyID: %d", propId);
+ return false;
+ }
+
+ if (valid_primitive) {
+ if (id != 0)
+ parsedValue = CSSPrimitiveValue::createIdentifier(id);
+ else if (valueWithCalculation.value().unit == CSSPrimitiveValue::CSS_STRING)
+ parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().string, (CSSPrimitiveValue::UnitTypes) valueWithCalculation.value().unit);
+ else if (valueWithCalculation.value().unit >= CSSPrimitiveValue::CSS_NUMBER && valueWithCalculation.value().unit <= CSSPrimitiveValue::CSS_KHZ)
+ parsedValue = CSSPrimitiveValue::create(valueWithCalculation.value().fValue, (CSSPrimitiveValue::UnitTypes) valueWithCalculation.value().unit);
+ else if (valueWithCalculation.value().unit >= CSSParserValue::Q_EMS)
+ parsedValue = CSSPrimitiveValue::createAllowingMarginQuirk(valueWithCalculation.value().fValue, CSSPrimitiveValue::CSS_EMS);
+ if (isCalculation(valueWithCalculation))
+ parsedValue = CSSPrimitiveValue::create(valueWithCalculation.calculation());
+ m_valueList->next();
+ }
+ if (!parsedValue || (m_valueList->current() && !inShorthand()))
+ return false;
+
+ addProperty(propId, WTFMove(parsedValue), important);
+ return true;
+}
+
+RefPtr<CSSValueList> CSSParser::parseSVGStrokeDasharray()
+{
+ RefPtr<CSSValueList> ret = CSSValueList::createCommaSeparated();
+ CSSParserValue* value = m_valueList->current();
+ bool valid_primitive = true;
+ while (value) {
+ ValueWithCalculation valueWithCalculation(*value);
+ valid_primitive = validateUnit(valueWithCalculation, FLength | FPercent | FNonNeg, SVGAttributeMode);
+ if (!valid_primitive)
+ break;
+ // FIXME: This code doesn't handle calculated values.
+ if (value->id != 0)
+ ret->append(CSSPrimitiveValue::createIdentifier(value->id));
+ else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ)
+ ret->append(CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit));
+ value = m_valueList->next();
+ if (value && value->unit == CSSParserValue::Operator && value->iValue == ',')
+ value = m_valueList->next();
+ }
+ if (!valid_primitive)
+ return nullptr;
+ return ret;
+}
+
+RefPtr<SVGPaint> CSSParser::parseSVGPaint()
+{
+ RGBA32 c = Color::transparent;
+ if (!parseColorFromValue(*m_valueList->current(), c))
+ return nullptr;
+ return SVGPaint::createColor(Color(c));
+}
+
+RefPtr<SVGColor> CSSParser::parseSVGColor()
+{
+ RGBA32 c = Color::transparent;
+ if (!parseColorFromValue(*m_valueList->current(), c))
+ return nullptr;
+ return SVGColor::createFromColor(Color(c));
+}
+
+RefPtr<CSSValueList> CSSParser::parsePaintOrder()
+{
+ CSSParserValue* value = m_valueList->current();
+
+ Vector<CSSValueID> paintTypeList;
+ RefPtr<CSSPrimitiveValue> fill;
+ RefPtr<CSSPrimitiveValue> stroke;
+ RefPtr<CSSPrimitiveValue> markers;
+ while (value) {
+ if (value->id == CSSValueFill && !fill)
+ fill = CSSPrimitiveValue::createIdentifier(value->id);
+ else if (value->id == CSSValueStroke && !stroke)
+ stroke = CSSPrimitiveValue::createIdentifier(value->id);
+ else if (value->id == CSSValueMarkers && !markers)
+ markers = CSSPrimitiveValue::createIdentifier(value->id);
+ else
+ return nullptr;
+ paintTypeList.append(value->id);
+ value = m_valueList->next();
+ }
+
+ // After parsing we serialize the paint-order list. Since it is not possible to
+ // pop a last list items from CSSValueList without bigger cost, we create the
+ // list after parsing.
+ CSSValueID firstPaintOrderType = paintTypeList.at(0);
+ auto paintOrderList = CSSValueList::createSpaceSeparated();
+ switch (firstPaintOrderType) {
+ case CSSValueFill:
+ FALLTHROUGH;
+ case CSSValueStroke:
+ paintOrderList->append(firstPaintOrderType == CSSValueFill ? fill.releaseNonNull() : stroke.releaseNonNull());
+ if (paintTypeList.size() > 1) {
+ if (paintTypeList.at(1) == CSSValueMarkers)
+ paintOrderList->append(markers.releaseNonNull());
+ }
+ break;
+ case CSSValueMarkers:
+ paintOrderList->append(markers.releaseNonNull());
+ if (paintTypeList.size() > 1) {
+ if (paintTypeList.at(1) == CSSValueStroke)
+ paintOrderList->append(stroke.releaseNonNull());
+ }
+ break;
+ default:
+ ASSERT_NOT_REACHED();
+ }
+ return WTFMove(paintOrderList);
+}
+
+}
</ins></span></pre></div>
<a id="trunkSourceWebCorepageSettingsin"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/Settings.in (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/Settings.in 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebCore/page/Settings.in 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -251,6 +251,8 @@
</span><span class="cx">
</span><span class="cx"> newBlockInsideInlineModelEnabled initial=false, setNeedsStyleRecalcInAllFrames=1
</span><span class="cx">
</span><ins>+newCSSParserEnabled initial=false
+
</ins><span class="cx"> httpEquivEnabled initial=true
</span><span class="cx">
</span><span class="cx"> # Some ports (e.g. iOS) might choose to display attachments inline, regardless of whether the response includes the
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebKit2/ChangeLog 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2016-08-23 Dave Hyatt <hyatt@apple.com>
+
+ Add pref for enabling new CSS parsing and move parser files into subdirectory.
+ https://bugs.webkit.org/show_bug.cgi?id=161095
+
+ Reviewed by Sam Weinig.
+
+ * Shared/WebPreferencesDefinitions.h:
+ * UIProcess/API/C/WKPreferences.cpp:
+ (WKPreferencesSetNewCSSParserEnabled):
+ (WKPreferencesGetNewCSSParserEnabled):
+ * UIProcess/API/C/WKPreferencesRefPrivate.h:
+ * WebProcess/WebPage/WebPage.cpp:
+ (WebKit::WebPage::updatePreferences):
+
</ins><span class="cx"> 2016-08-23 Chris Dumez <cdumez@apple.com>
</span><span class="cx">
</span><span class="cx"> Unreviewed, rolling out r204243.
</span></span></pre></div>
<a id="trunkSourceWebKit2SharedWebPreferencesDefinitionsh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -221,6 +221,7 @@
</span><span class="cx"> macro(EnableInheritURIQueryComponent, enableInheritURIQueryComponent, Bool, bool, false, "", "") \
</span><span class="cx"> macro(ServiceControlsEnabled, serviceControlsEnabled, Bool, bool, false, "", "") \
</span><span class="cx"> macro(NewBlockInsideInlineModelEnabled, newBlockInsideInlineModelEnabled, Bool, bool, false, "", "") \
</span><ins>+ macro(NewCSSParserEnabled, newCSSParserEnabled, Bool, bool, false, "", "") \
</ins><span class="cx"> macro(HTTPEquivEnabled, httpEquivEnabled, Bool, bool, true, "", "") \
</span><span class="cx"> macro(MockCaptureDevicesEnabled, mockCaptureDevicesEnabled, Bool, bool, false, "", "") \
</span><span class="cx"> macro(ShadowDOMEnabled, shadowDOMEnabled, Bool, bool, true, "Shadow DOM", "HTML Shadow DOM prototype") \
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKPreferencescpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -1261,6 +1261,16 @@
</span><span class="cx"> return toImpl(preferencesRef)->newBlockInsideInlineModelEnabled();
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+void WKPreferencesSetNewCSSParserEnabled(WKPreferencesRef preferencesRef, bool flag)
+{
+ toImpl(preferencesRef)->setNewCSSParserEnabled(flag);
+}
+
+bool WKPreferencesGetNewCSSParserEnabled(WKPreferencesRef preferencesRef)
+{
+ return toImpl(preferencesRef)->newCSSParserEnabled();
+}
+
</ins><span class="cx"> void WKPreferencesSetSubpixelCSSOMElementMetricsEnabled(WKPreferencesRef preferencesRef, bool flag)
</span><span class="cx"> {
</span><span class="cx"> toImpl(preferencesRef)->setSubpixelCSSOMElementMetricsEnabled(flag);
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKPreferencesRefPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -328,6 +328,10 @@
</span><span class="cx"> WK_EXPORT bool WKPreferencesGetNewBlockInsideInlineModelEnabled(WKPreferencesRef);
</span><span class="cx">
</span><span class="cx"> // Defaults to false.
</span><ins>+WK_EXPORT void WKPreferencesSetNewCSSParserEnabled(WKPreferencesRef, bool);
+WK_EXPORT bool WKPreferencesGetNewCSSParserEnabled(WKPreferencesRef);
+
+// Defaults to false.
</ins><span class="cx"> WK_EXPORT void WKPreferencesSetSubpixelCSSOMElementMetricsEnabled(WKPreferencesRef, bool);
</span><span class="cx"> WK_EXPORT bool WKPreferencesGetSubpixelCSSOMElementMetricsEnabled(WKPreferencesRef);
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebPageWebPagecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp (204851 => 204852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp 2016-08-23 19:23:55 UTC (rev 204851)
+++ trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp 2016-08-23 19:37:37 UTC (rev 204852)
</span><span class="lines">@@ -3093,7 +3093,8 @@
</span><span class="cx"> settings.setSimpleLineLayoutDebugBordersEnabled(store.getBoolValueForKey(WebPreferencesKey::simpleLineLayoutDebugBordersEnabledKey()));
</span><span class="cx">
</span><span class="cx"> settings.setNewBlockInsideInlineModelEnabled(store.getBoolValueForKey(WebPreferencesKey::newBlockInsideInlineModelEnabledKey()));
</span><del>-
</del><ins>+ settings.setNewCSSParserEnabled(store.getBoolValueForKey(WebPreferencesKey::newCSSParserEnabledKey()));
+
</ins><span class="cx"> settings.setSubpixelCSSOMElementMetricsEnabled(store.getBoolValueForKey(WebPreferencesKey::subpixelCSSOMElementMetricsEnabledKey()));
</span><span class="cx">
</span><span class="cx"> settings.setUseLegacyTextAlignPositionedElementBehavior(store.getBoolValueForKey(WebPreferencesKey::useLegacyTextAlignPositionedElementBehaviorKey()));
</span></span></pre>
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