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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/187728">187728</a></dd>
<dt>Author</dt> <dd>mmaxfield@apple.com</dd>
<dt>Date</dt> <dd>2015-08-01 16:49:08 -0700 (Sat, 01 Aug 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>CharacterFallbackMapKey should be locale-specific
https://bugs.webkit.org/show_bug.cgi?id=147532
Reviewed by Dean Jackson.
This is in preparation for locale-specific font fallback.
No new tests because there is no behavior change.
* platform/graphics/Font.cpp:
(WebCore::CharacterFallbackMapKey::CharacterFallbackMapKey):
(WebCore::CharacterFallbackMapKey::operator==):
(WebCore::CharacterFallbackMapKeyHash::hash):
(WebCore::Font::systemFallbackFontForCharacter):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsFontcpp">trunk/Source/WebCore/platform/graphics/Font.cpp</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (187727 => 187728)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2015-08-01 23:39:28 UTC (rev 187727)
+++ trunk/Source/WebCore/ChangeLog 2015-08-01 23:49:08 UTC (rev 187728)
</span><span class="lines">@@ -1,5 +1,22 @@
</span><span class="cx"> 2015-08-01 Myles C. Maxfield <mmaxfield@apple.com>
</span><span class="cx">
</span><ins>+ CharacterFallbackMapKey should be locale-specific
+ https://bugs.webkit.org/show_bug.cgi?id=147532
+
+ Reviewed by Dean Jackson.
+
+ This is in preparation for locale-specific font fallback.
+
+ No new tests because there is no behavior change.
+
+ * platform/graphics/Font.cpp:
+ (WebCore::CharacterFallbackMapKey::CharacterFallbackMapKey):
+ (WebCore::CharacterFallbackMapKey::operator==):
+ (WebCore::CharacterFallbackMapKeyHash::hash):
+ (WebCore::Font::systemFallbackFontForCharacter):
+
+2015-08-01 Myles C. Maxfield <mmaxfield@apple.com>
+
</ins><span class="cx"> Expand CharacterFallbackMapKey to a struct
</span><span class="cx"> https://bugs.webkit.org/show_bug.cgi?id=147530
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsFontcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/Font.cpp (187727 => 187728)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/Font.cpp 2015-08-01 23:39:28 UTC (rev 187727)
+++ trunk/Source/WebCore/platform/graphics/Font.cpp 2015-08-01 23:49:08 UTC (rev 187728)
</span><span class="lines">@@ -38,6 +38,7 @@
</span><span class="cx"> #include "OpenTypeMathData.h"
</span><span class="cx"> #include <wtf/MathExtras.h>
</span><span class="cx"> #include <wtf/NeverDestroyed.h>
</span><ins>+#include <wtf/text/AtomicStringHash.h>
</ins><span class="cx">
</span><span class="cx"> #if ENABLE(OPENTYPE_VERTICAL)
</span><span class="cx"> #include "OpenTypeVerticalData.h"
</span><span class="lines">@@ -396,13 +397,15 @@
</span><span class="cx"> #endif
</span><span class="cx"> }
</span><span class="cx">
</span><del>-struct CharacterFallbackMapKey {
</del><ins>+class CharacterFallbackMapKey {
+public:
</ins><span class="cx"> CharacterFallbackMapKey()
</span><span class="cx"> {
</span><span class="cx"> }
</span><span class="cx">
</span><del>- CharacterFallbackMapKey(UChar32 character, bool isForPlatformFont)
- : character(character)
</del><ins>+ CharacterFallbackMapKey(const AtomicString& locale, UChar32 character, bool isForPlatformFont)
+ : locale(locale)
+ , character(character)
</ins><span class="cx"> , isForPlatformFont(isForPlatformFont)
</span><span class="cx"> {
</span><span class="cx"> }
</span><span class="lines">@@ -416,11 +419,15 @@
</span><span class="cx">
</span><span class="cx"> bool operator==(const CharacterFallbackMapKey& other) const
</span><span class="cx"> {
</span><del>- return character == other.character && isForPlatformFont == other.isForPlatformFont;
</del><ins>+ return locale == other.locale && character == other.character && isForPlatformFont == other.isForPlatformFont;
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> static const bool emptyValueIsZero = true;
</span><span class="cx">
</span><ins>+private:
+ friend struct CharacterFallbackMapKeyHash;
+
+ AtomicString locale;
</ins><span class="cx"> UChar32 character { 0 };
</span><span class="cx"> bool isForPlatformFont { false };
</span><span class="cx"> };
</span><span class="lines">@@ -428,7 +435,7 @@
</span><span class="cx"> struct CharacterFallbackMapKeyHash {
</span><span class="cx"> static unsigned hash(const CharacterFallbackMapKey& key)
</span><span class="cx"> {
</span><del>- return WTF::pairIntHash(key.character, key.isForPlatformFont);
</del><ins>+ return WTF::pairIntHash(key.locale.isNull() ? 0 : WTF::AtomicStringHash::hash(key.locale), WTF::pairIntHash(key.character, key.isForPlatformFont));
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> static bool equal(const CharacterFallbackMapKey& a, const CharacterFallbackMapKey& b)
</span><span class="lines">@@ -440,6 +447,7 @@
</span><span class="cx"> };
</span><span class="cx">
</span><span class="cx"> // Fonts are not ref'd to avoid cycles.
</span><ins>+// FIXME: Shouldn't these be WeakPtrs?
</ins><span class="cx"> typedef HashMap<CharacterFallbackMapKey, Font*, CharacterFallbackMapKeyHash, WTF::SimpleClassHashTraits<CharacterFallbackMapKey>> CharacterFallbackMap;
</span><span class="cx"> typedef HashMap<const Font*, CharacterFallbackMap> SystemFallbackCache;
</span><span class="cx">
</span><span class="lines">@@ -458,7 +466,7 @@
</span><span class="cx"> return FontCache::singleton().systemFallbackForCharacters(description, this, isForPlatformFont, &codeUnit, 1);
</span><span class="cx"> }
</span><span class="cx">
</span><del>- auto key = CharacterFallbackMapKey(character, isForPlatformFont);
</del><ins>+ auto key = CharacterFallbackMapKey(description.locale(), character, isForPlatformFont);
</ins><span class="cx"> auto characterAddResult = fontAddResult.iterator->value.add(WTF::move(key), nullptr);
</span><span class="cx">
</span><span class="cx"> Font*& fallbackFont = characterAddResult.iterator->value;
</span></span></pre>
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