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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/213505">213505</a></dd>
<dt>Author</dt> <dd>mmaxfield@apple.com</dd>
<dt>Date</dt> <dd>2017-03-06 23:30:27 -0800 (Mon, 06 Mar 2017)</dd>
</dl>

<h3>Log Message</h3>
<pre>Apply well-known-axis variation values at the right time in preparePlatformFont()
https://bugs.webkit.org/show_bug.cgi?id=168896

Reviewed by Jon Lee.

Source/WebCore:

Simply plumb the FontSelectionRequest to the place where font variations are implemented.

Test: fast/text/variations/font-selection-properties.html

* platform/graphics/FontCache.h:
* platform/graphics/cocoa/FontCacheCoreText.cpp:
(WebCore::preparePlatformFont):
(WebCore::fontWithFamily):
(WebCore::FontCache::createFontPlatformData):
(WebCore::FontCache::systemFallbackForCharacters):
* platform/graphics/mac/FontCustomPlatformData.cpp:
(WebCore::FontCustomPlatformData::fontPlatformData):

LayoutTests:

* fast/text/variations/font-selection-properties-expected.html: Added.
* fast/text/variations/font-selection-properties.html: Added.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsFontCacheh">trunk/Source/WebCore/platform/graphics/FontCache.h</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicscocoaFontCacheCoreTextcpp">trunk/Source/WebCore/platform/graphics/cocoa/FontCacheCoreText.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsmacFontCustomPlatformDatacpp">trunk/Source/WebCore/platform/graphics/mac/FontCustomPlatformData.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformspicocoaCoreTextSPIh">trunk/Source/WebCore/platform/spi/cocoa/CoreTextSPI.h</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsfasttextvariationsfontselectionpropertiesexpectedhtml">trunk/LayoutTests/fast/text/variations/font-selection-properties-expected.html</a></li>
<li><a href="#trunkLayoutTestsfasttextvariationsfontselectionpropertieshtml">trunk/LayoutTests/fast/text/variations/font-selection-properties.html</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (213504 => 213505)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2017-03-07 07:19:51 UTC (rev 213504)
+++ trunk/LayoutTests/ChangeLog        2017-03-07 07:30:27 UTC (rev 213505)
</span><span class="lines">@@ -1,3 +1,13 @@
</span><ins>+2017-03-06  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
+
+        Apply well-known-axis variation values at the right time in preparePlatformFont()
+        https://bugs.webkit.org/show_bug.cgi?id=168896
+
+        Reviewed by Jon Lee.
+
+        * fast/text/variations/font-selection-properties-expected.html: Added.
+        * fast/text/variations/font-selection-properties.html: Added.
+
</ins><span class="cx"> 2017-03-06  Brent Fulgham  &lt;bfulgham@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Validate DOM after potentially destructive actions during parser insert operations
</span></span></pre></div>
<a id="trunkLayoutTestsfasttextvariationsfontselectionpropertiesexpectedhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/text/variations/font-selection-properties-expected.html (0 => 213505)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/text/variations/font-selection-properties-expected.html                                (rev 0)
+++ trunk/LayoutTests/fast/text/variations/font-selection-properties-expected.html        2017-03-07 07:30:27 UTC (rev 213505)
</span><span class="lines">@@ -0,0 +1,16 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;style&gt;
+@font-face {
+        font-family: &quot;Boxis&quot;;
+        src: url(&quot;resources/Boxis-VF.ttf&quot;);
+}
+&lt;/style&gt;
+&lt;/head&gt;
+&lt;body&gt;
+This test makes sure that the font selection properties affect font variations.
+&lt;div style=&quot;font-family: Boxis; font-variation-settings: 'wdth' 900;&quot;&gt;Hello&lt;/div&gt;
+&lt;div style=&quot;font-family: Boxis; font-variation-settings: 'wdth' 100;&quot;&gt;Hello&lt;/div&gt;
+&lt;/body&gt;
+&lt;/html&gt;
</ins></span></pre></div>
<a id="trunkLayoutTestsfasttextvariationsfontselectionpropertieshtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/text/variations/font-selection-properties.html (0 => 213505)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/text/variations/font-selection-properties.html                                (rev 0)
+++ trunk/LayoutTests/fast/text/variations/font-selection-properties.html        2017-03-07 07:30:27 UTC (rev 213505)
</span><span class="lines">@@ -0,0 +1,16 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;style&gt;
+@font-face {
+        font-family: &quot;Boxis&quot;;
+        src: url(&quot;resources/Boxis-VF.ttf&quot;);
+}
+&lt;/style&gt;
+&lt;/head&gt;
+&lt;body&gt;
+This test makes sure that the font selection properties affect font variations.
+&lt;div style=&quot;font-family: Boxis; font-stretch: 900;&quot;&gt;Hello&lt;/div&gt;
+&lt;div style=&quot;font-family: Boxis; font-stretch: 900; font-variation-settings: 'wdth' 100;&quot;&gt;Hello&lt;/div&gt;
+&lt;/body&gt;
+&lt;/html&gt;
</ins></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (213504 => 213505)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2017-03-07 07:19:51 UTC (rev 213504)
+++ trunk/Source/WebCore/ChangeLog        2017-03-07 07:30:27 UTC (rev 213505)
</span><span class="lines">@@ -1,5 +1,25 @@
</span><span class="cx"> 2017-03-06  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Apply well-known-axis variation values at the right time in preparePlatformFont()
+        https://bugs.webkit.org/show_bug.cgi?id=168896
+
+        Reviewed by Jon Lee.
+
+        Simply plumb the FontSelectionRequest to the place where font variations are implemented.
+
+        Test: fast/text/variations/font-selection-properties.html
+
+        * platform/graphics/FontCache.h:
+        * platform/graphics/cocoa/FontCacheCoreText.cpp:
+        (WebCore::preparePlatformFont):
+        (WebCore::fontWithFamily):
+        (WebCore::FontCache::createFontPlatformData):
+        (WebCore::FontCache::systemFallbackForCharacters):
+        * platform/graphics/mac/FontCustomPlatformData.cpp:
+        (WebCore::FontCustomPlatformData::fontPlatformData):
+
+2017-03-06  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
+
</ins><span class="cx">         Unreviewed post-review fixup after r213464
</span><span class="cx">         https://bugs.webkit.org/show_bug.cgi?id=169255
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsFontCacheh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/FontCache.h (213504 => 213505)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/FontCache.h        2017-03-07 07:19:51 UTC (rev 213504)
+++ trunk/Source/WebCore/platform/graphics/FontCache.h        2017-03-07 07:30:27 UTC (rev 213505)
</span><span class="lines">@@ -275,7 +275,7 @@
</span><span class="cx">     bool needsSyntheticOblique;
</span><span class="cx"> };
</span><span class="cx"> 
</span><del>-RetainPtr&lt;CTFontRef&gt; preparePlatformFont(CTFontRef, TextRenderingMode, const FontFeatureSettings* fontFaceFeatures, const FontVariantSettings* fontFaceVariantSettings, const FontFeatureSettings&amp; features, const FontVariantSettings&amp;, const FontVariationSettings&amp;);
</del><ins>+RetainPtr&lt;CTFontRef&gt; preparePlatformFont(CTFontRef, TextRenderingMode, const FontFeatureSettings* fontFaceFeatures, const FontVariantSettings* fontFaceVariantSettings, const FontFeatureSettings&amp; features, const FontVariantSettings&amp;, FontSelectionRequest, const FontVariationSettings&amp;);
</ins><span class="cx"> SynthesisPair computeNecessarySynthesis(CTFontRef, const FontDescription&amp;, bool isPlatformFont = false);
</span><span class="cx"> RetainPtr&lt;CTFontRef&gt; platformFontWithFamilySpecialCase(const AtomicString&amp; family, FontSelectionRequest, float size);
</span><span class="cx"> RetainPtr&lt;CTFontRef&gt; platformFontWithFamily(const AtomicString&amp; family, FontSelectionRequest, TextRenderingMode, float size);
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicscocoaFontCacheCoreTextcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/cocoa/FontCacheCoreText.cpp (213504 => 213505)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/cocoa/FontCacheCoreText.cpp        2017-03-07 07:19:51 UTC (rev 213504)
+++ trunk/Source/WebCore/platform/graphics/cocoa/FontCacheCoreText.cpp        2017-03-07 07:30:27 UTC (rev 213505)
</span><span class="lines">@@ -422,7 +422,7 @@
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx"> #define WORKAROUND_CORETEXT_VARIATIONS_UNSPECIFIED_VALUE_BUG ((PLATFORM(MAC) &amp;&amp; __MAC_OS_X_VERSION_MIN_REQUIRED &lt; 101300) || (PLATFORM(IOS) &amp;&amp; __IPHONE_OS_VERSION_MIN_REQUIRED &lt; 110000))
</span><del>-#if ENABLE(VARIATION_FONTS) &amp;&amp; WORKAROUND_CORETEXT_VARIATIONS_UNSPECIFIED_VALUE_BUG
</del><ins>+#if ENABLE(VARIATION_FONTS) &amp;&amp; (PLATFORM(IOS) || WORKAROUND_CORETEXT_VARIATIONS_UNSPECIFIED_VALUE_BUG)
</ins><span class="cx"> static inline bool fontIsSystemFont(CTFontRef font)
</span><span class="cx"> {
</span><span class="cx">     if (CTFontDescriptorIsSystemUIFont(adoptCF(CTFontCopyFontDescriptor(font)).get()))
</span><span class="lines">@@ -432,7 +432,7 @@
</span><span class="cx"> }
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><del>-RetainPtr&lt;CTFontRef&gt; preparePlatformFont(CTFontRef originalFont, TextRenderingMode textRenderingMode, const FontFeatureSettings* fontFaceFeatures, const FontVariantSettings* fontFaceVariantSettings, const FontFeatureSettings&amp; features, const FontVariantSettings&amp; variantSettings, const FontVariationSettings&amp; variations)
</del><ins>+RetainPtr&lt;CTFontRef&gt; preparePlatformFont(CTFontRef originalFont, TextRenderingMode textRenderingMode, const FontFeatureSettings* fontFaceFeatures, const FontVariantSettings* fontFaceVariantSettings, const FontFeatureSettings&amp; features, const FontVariantSettings&amp; variantSettings, FontSelectionRequest fontSelectionRequest, const FontVariationSettings&amp; variations)
</ins><span class="cx"> {
</span><span class="cx">     bool alwaysAddVariations = false;
</span><span class="cx"> 
</span><span class="lines">@@ -439,10 +439,10 @@
</span><span class="cx">     // FIXME: Remove when &lt;rdar://problem/29859207&gt; is fixed
</span><span class="cx"> #if ENABLE(VARIATION_FONTS)
</span><span class="cx">     auto defaultValues = defaultVariationValues(originalFont);
</span><del>-#if WORKAROUND_CORETEXT_VARIATIONS_UNSPECIFIED_VALUE_BUG
</del><span class="cx">     alwaysAddVariations = !defaultValues.isEmpty();
</span><ins>+#else
+    UNUSED_PARAM(fontSelectionRequest);
</ins><span class="cx"> #endif
</span><del>-#endif
</del><span class="cx"> 
</span><span class="cx">     if (!originalFont || (!features.size() &amp;&amp; (!alwaysAddVariations &amp;&amp; variations.isEmpty()) &amp;&amp; (textRenderingMode == AutoTextRendering) &amp;&amp; variantSettings.isAllNormal()
</span><span class="cx">         &amp;&amp; (!fontFaceFeatures || !fontFaceFeatures-&gt;size()) &amp;&amp; (!fontFaceVariantSettings || fontFaceVariantSettings-&gt;isAllNormal())))
</span><span class="lines">@@ -496,14 +496,26 @@
</span><span class="cx">         variationsToBeApplied.set(tag, value);
</span><span class="cx">     };
</span><span class="cx"> 
</span><del>-    for (auto&amp; newVariation : variations) {
-        auto iterator = defaultValues.find(newVariation.tag());
</del><ins>+    auto applyVariation = [&amp;](const FontTag&amp; tag, float value) {
+        auto iterator = defaultValues.find(tag);
</ins><span class="cx">         if (iterator == defaultValues.end())
</span><del>-            continue;
-        float valueToApply = clampTo(newVariation.value(), iterator-&gt;value.minimumValue, iterator-&gt;value.maximumValue);
</del><ins>+            return;
+        float valueToApply = clampTo(value, iterator-&gt;value.minimumValue, iterator-&gt;value.maximumValue);
</ins><span class="cx">         bool isDefaultValue = valueToApply == iterator-&gt;value.defaultValue;
</span><del>-        applyVariationValue(newVariation.tag(), valueToApply, isDefaultValue);
</del><ins>+        applyVariationValue(tag, valueToApply, isDefaultValue);
+    };
+
+#if PLATFORM(IOS)
+    // The system font is somewhat magical. Don't mess with its variations.
+    if (!fontIsSystemFont(originalFont))
+#endif
+    {
+        applyVariation({{'w', 'g', 'h', 't'}}, static_cast&lt;float&gt;(fontSelectionRequest.weight));
+        applyVariation({{'w', 'd', 't', 'h'}}, static_cast&lt;float&gt;(fontSelectionRequest.width));
+        applyVariation({{'s', 'l', 'n', 't'}}, static_cast&lt;float&gt;(fontSelectionRequest.slope));
</ins><span class="cx">     }
</span><ins>+    for (auto&amp; newVariation : variations)
+        applyVariation(newVariation.tag(), newVariation.value());
</ins><span class="cx"> 
</span><span class="cx"> #if WORKAROUND_CORETEXT_VARIATIONS_UNSPECIFIED_VALUE_BUG
</span><span class="cx">     if (!fontIsSystemFont(originalFont)) {
</span><span class="lines">@@ -951,7 +963,7 @@
</span><span class="cx">     FontCache::singleton().invalidate();
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-static RetainPtr&lt;CTFontRef&gt; fontWithFamily(const AtomicString&amp; family, FontSelectionRequest request, const FontFeatureSettings&amp; featureSettings, const FontVariantSettings&amp; variantSettings, const FontVariationSettings&amp; variationSettings, const FontFeatureSettings* fontFaceFeatures, const FontVariantSettings* fontFaceVariantSettings, const TextRenderingMode&amp; textRenderingMode, float size)
</del><ins>+static RetainPtr&lt;CTFontRef&gt; fontWithFamily(const AtomicString&amp; family, FontSelectionRequest request, const FontFeatureSettings&amp; featureSettings, const FontVariantSettings&amp; variantSettings, const FontVariationSettings&amp; variationSettings, const FontFeatureSettings* fontFaceFeatures, const FontVariantSettings* fontFaceVariantSettings, const TextRenderingMode&amp; textRenderingMode, FontSelectionRequest fontSelectionRequest, float size)
</ins><span class="cx"> {
</span><span class="cx">     if (family.isEmpty())
</span><span class="cx">         return nullptr;
</span><span class="lines">@@ -959,7 +971,7 @@
</span><span class="cx">     auto foundFont = platformFontWithFamilySpecialCase(family, request, size);
</span><span class="cx">     if (!foundFont)
</span><span class="cx">         foundFont = platformFontLookupWithFamily(family, request, size);
</span><del>-    return preparePlatformFont(foundFont.get(), textRenderingMode, fontFaceFeatures, fontFaceVariantSettings, featureSettings, variantSettings, variationSettings);
</del><ins>+    return preparePlatformFont(foundFont.get(), textRenderingMode, fontFaceFeatures, fontFaceVariantSettings, featureSettings, variantSettings, fontSelectionRequest, variationSettings);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(MAC)
</span><span class="lines">@@ -998,7 +1010,7 @@
</span><span class="cx"> {
</span><span class="cx">     float size = fontDescription.computedPixelSize();
</span><span class="cx"> 
</span><del>-    auto font = fontWithFamily(family, fontDescription.fontSelectionRequest(), fontDescription.featureSettings(), fontDescription.variantSettings(), fontDescription.variationSettings(), fontFaceFeatures, fontFaceVariantSettings, fontDescription.textRenderingMode(), size);
</del><ins>+    auto font = fontWithFamily(family, fontDescription.fontSelectionRequest(), fontDescription.featureSettings(), fontDescription.variantSettings(), fontDescription.variationSettings(), fontFaceFeatures, fontFaceVariantSettings, fontDescription.textRenderingMode(), fontDescription.fontSelectionRequest(), size);
</ins><span class="cx"> 
</span><span class="cx"> #if PLATFORM(MAC)
</span><span class="cx">     if (!font) {
</span><span class="lines">@@ -1009,7 +1021,7 @@
</span><span class="cx">         // Ignore the result because we want to use our own algorithm to actually find the font.
</span><span class="cx">         autoActivateFont(family.string(), size);
</span><span class="cx"> 
</span><del>-        font = fontWithFamily(family, fontDescription.fontSelectionRequest(), fontDescription.featureSettings(), fontDescription.variantSettings(), fontDescription.variationSettings(), fontFaceFeatures, fontFaceVariantSettings, fontDescription.textRenderingMode(), size);
</del><ins>+        font = fontWithFamily(family, fontDescription.fontSelectionRequest(), fontDescription.featureSettings(), fontDescription.variantSettings(), fontDescription.variationSettings(), fontFaceFeatures, fontFaceVariantSettings, fontDescription.textRenderingMode(), fontDescription.fontSelectionRequest(), size);
</ins><span class="cx">     }
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="lines">@@ -1097,7 +1109,7 @@
</span><span class="cx"> 
</span><span class="cx">     const FontPlatformData&amp; platformData = originalFontData-&gt;platformData();
</span><span class="cx">     auto result = lookupFallbackFont(platformData.font(), description.weight(), description.locale(), characters, length);
</span><del>-    result = preparePlatformFont(result.get(), description.textRenderingMode(), nullptr, nullptr, description.featureSettings(), description.variantSettings(), description.variationSettings());
</del><ins>+    result = preparePlatformFont(result.get(), description.textRenderingMode(), nullptr, nullptr, description.featureSettings(), description.variantSettings(), description.fontSelectionRequest(), description.variationSettings());
</ins><span class="cx">     if (!result)
</span><span class="cx">         return lastResortFallbackFont(description);
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsmacFontCustomPlatformDatacpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/mac/FontCustomPlatformData.cpp (213504 => 213505)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/mac/FontCustomPlatformData.cpp        2017-03-07 07:19:51 UTC (rev 213504)
+++ trunk/Source/WebCore/platform/graphics/mac/FontCustomPlatformData.cpp        2017-03-07 07:30:27 UTC (rev 213505)
</span><span class="lines">@@ -40,7 +40,7 @@
</span><span class="cx">     FontOrientation orientation = fontDescription.orientation();
</span><span class="cx">     FontWidthVariant widthVariant = fontDescription.widthVariant();
</span><span class="cx">     RetainPtr&lt;CTFontRef&gt; font = adoptCF(CTFontCreateWithFontDescriptor(m_fontDescriptor.get(), size, nullptr));
</span><del>-    font = preparePlatformFont(font.get(), fontDescription.textRenderingMode(), &amp;fontFaceFeatures, &amp;fontFaceVariantSettings, fontDescription.featureSettings(), fontDescription.variantSettings(), fontDescription.variationSettings());
</del><ins>+    font = preparePlatformFont(font.get(), fontDescription.textRenderingMode(), &amp;fontFaceFeatures, &amp;fontFaceVariantSettings, fontDescription.featureSettings(), fontDescription.variantSettings(), fontDescription.fontSelectionRequest(), fontDescription.variationSettings());
</ins><span class="cx">     ASSERT(font);
</span><span class="cx">     return FontPlatformData(font.get(), size, bold, italic, orientation, widthVariant, fontDescription.textRenderingMode());
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformspicocoaCoreTextSPIh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/spi/cocoa/CoreTextSPI.h (213504 => 213505)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/spi/cocoa/CoreTextSPI.h        2017-03-07 07:19:51 UTC (rev 213504)
+++ trunk/Source/WebCore/platform/spi/cocoa/CoreTextSPI.h        2017-03-07 07:30:27 UTC (rev 213505)
</span><span class="lines">@@ -125,7 +125,6 @@
</span><span class="cx"> 
</span><span class="cx"> CTFontRef CTFontCreatePhysicalFontForCharactersWithLanguage(CTFontRef, const UTF16Char* characters, CFIndex length, CFStringRef language, CFIndex* coveredLength);
</span><span class="cx"> bool CTFontIsAppleColorEmoji(CTFontRef);
</span><del>-bool CTFontDescriptorIsSystemUIFont(CTFontDescriptorRef);
</del><span class="cx"> CTFontRef CTFontCreateForCharacters(CTFontRef currentFont, const UTF16Char *characters, CFIndex length, CFIndex *coveredLength);
</span><span class="cx"> 
</span><span class="cx"> WTF_EXTERN_C_END
</span></span></pre>
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