Reland "Add plumbing for font-stretch"

Source/core/css/CSSComputedStyleDeclaration.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ skipping 111 matching lines @@
     CSSPropertyClip,
     CSSPropertyColor,
     CSSPropertyCursor,
     CSSPropertyDirection,
     CSSPropertyDisplay,
     CSSPropertyEmptyCells,
     CSSPropertyFloat,
     CSSPropertyFontFamily,
     CSSPropertyFontKerning,
     CSSPropertyFontSize,
+    CSSPropertyFontStretch,
     CSSPropertyFontStyle,
     CSSPropertyFontVariant,
     CSSPropertyFontVariantLigatures,
     CSSPropertyFontWeight,
     CSSPropertyHeight,
     CSSPropertyImageRendering,
     CSSPropertyIsolation,
     CSSPropertyJustifyItems,
     CSSPropertyJustifySelf,
     CSSPropertyLeft,
@@ skipping 1258 matching lines @@
         return cssValuePool().createIdentifierValue(CSSValueNormal);
 
     return zoomAdjustedPixelValue(floatValueForLength(length, style.fontDescription().specifiedSize()), style);
 }
 
 static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> valueForFontSize(RenderStyle& style)
 {
     return zoomAdjustedPixelValue(style.fontDescription().computedPixelSize(), style);
 }
 
+static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> valueForFontStretch(RenderStyle& style)
+{
+    switch (style.fontDescription().stretch()) {
+    case FontStretchUltraCondensed:
+        return cssValuePool().createIdentifierValue(CSSValueUltraCondensed);
+    case FontStretchExtraCondensed:
+        return cssValuePool().createIdentifierValue(CSSValueExtraCondensed);
+    case FontStretchCondensed:
+        return cssValuePool().createIdentifierValue(CSSValueCondensed);
+    case FontStretchSemiCondensed:
+        return cssValuePool().createIdentifierValue(CSSValueSemiCondensed);
+    case FontStretchNormal:
+        return cssValuePool().createIdentifierValue(CSSValueNormal);
+    case FontStretchSemiExpanded:
+        return cssValuePool().createIdentifierValue(CSSValueSemiExpanded);
+    case FontStretchExpanded:
+        return cssValuePool().createIdentifierValue(CSSValueExpanded);
+    case FontStretchExtraExpanded:
+        return cssValuePool().createIdentifierValue(CSSValueExtraExpanded);
+    case FontStretchUltraExpanded:
+        return cssValuePool().createIdentifierValue(CSSValueUltraExpanded);
+    }
+    ASSERT_NOT_REACHED();
+    return cssValuePool().createIdentifierValue(CSSValueNormal);
+}
+
 static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> valueForFontStyle(RenderStyle& style)
 {
     if (style.fontDescription().style() == FontStyleItalic)
         return cssValuePool().createIdentifierValue(CSSValueItalic);
     return cssValuePool().createIdentifierValue(CSSValueNormal);
 }
 
 static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> valueForFontVariant(RenderStyle& style)
 {
     if (style.fontDescription().variant() == FontVariantSmallCaps)
@@ skipping 498 matching lines @@
             return cssValuePool().createValue(style->order(), CSSPrimitiveValue::CSS_NUMBER);
         case CSSPropertyFloat:
             if (style->display() != NONE && style->hasOutOfFlowPosition())
                 return cssValuePool().createIdentifierValue(CSSValueNone);
             return cssValuePool().createValue(style->floating());
         case CSSPropertyFont: {
             RefPtrWillBeRawPtr<CSSFontValue> computedFont = CSSFontValue::create();
             computedFont->style = valueForFontStyle(*style);
             computedFont->variant = valueForFontVariant(*style);
             computedFont->weight = valueForFontWeight(*style);
+            computedFont->stretch = valueForFontStretch(*style);
             computedFont->size = valueForFontSize(*style);
             computedFont->lineHeight = valueForLineHeight(*style);
             computedFont->family = valueForFontFamily(*style);
             return computedFont.release();
         }
         case CSSPropertyFontFamily: {
             RefPtrWillBeRawPtr<CSSValueList> fontFamilyList = valueForFontFamily(*style);
             // If there's only a single family, return that as a CSSPrimitiveValue.
             // NOTE: Gecko always returns this as a comma-separated CSSPrimitiveValue string.
             if (fontFamilyList->length() == 1)
                 return fontFamilyList->item(0);
             return fontFamilyList.release();
         }
         case CSSPropertyFontSize:
             return valueForFontSize(*style);
+        case CSSPropertyFontStretch:
+            return valueForFontStretch(*style);
         case CSSPropertyFontStyle:
             return valueForFontStyle(*style);
         case CSSPropertyFontVariant:
             return valueForFontVariant(*style);
         case CSSPropertyFontWeight:
             return valueForFontWeight(*style);
         case CSSPropertyWebkitFontFeatureSettings: {
             const FontFeatureSettings* featureSettings = style->fontDescription().featureSettings();
             if (!featureSettings || !featureSettings->size())
                 return cssValuePool().createIdentifierValue(CSSValueNormal);
@@ skipping 877 matching lines @@
         case CSSPropertyWebkitLogicalWidth:
         case CSSPropertyWebkitLogicalHeight:
         case CSSPropertyWebkitMinLogicalWidth:
         case CSSPropertyWebkitMinLogicalHeight:
         case CSSPropertyWebkitMaxLogicalWidth:
         case CSSPropertyWebkitMaxLogicalHeight:
             ASSERT_NOT_REACHED();
             break;
 
         /* Unimplemented @font-face properties */
-        case CSSPropertyFontStretch:
         case CSSPropertySrc:
         case CSSPropertyUnicodeRange:
             break;
 
         /* Other unimplemented properties */
         case CSSPropertyPage: // for @page
         case CSSPropertyQuotes: // FIXME: needs implementation
         case CSSPropertySize: // for @page
             break;
 
@@ skipping 266 matching lines @@
     return list.release();
 }
 
 void CSSComputedStyleDeclaration::trace(Visitor* visitor)
 {
     visitor->trace(m_node);
     CSSStyleDeclaration::trace(visitor);
 }
 
 } // namespace blink