Basic implementation of @apply

third_party/WebKit/Source/core/css/StylePropertySerializer.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Research In Motion Limited. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. 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.
@@ skipping 174 matching lines @@
     const CSSCustomPropertyDeclaration* value = toCSSCustomPropertyDeclaration(property.value());
     result.append(value->name());
     result.append(':');
     result.append(value->customCSSText());
     if (property.isImportant())
         result.appendLiteral(" !important");
     result.append(';');
     return result.toString();
 }
 
+static String getApplyAtRuleText(const CSSValue* value, bool isNotFirstDecl)
+{
+    StringBuilder result;
+    if (isNotFirstDecl)
+        result.append(' ');
+    result.appendLiteral("@apply ");
+    result.append(toCSSCustomIdentValue(value)->value());
+    result.append(';');
+    return result.toString();
+}
+
 String StylePropertySerializer::getPropertyText(CSSPropertyID propertyID, const String& value, bool isImportant, bool isNotFirstDecl) const
 {
     StringBuilder result;
     if (isNotFirstDecl)
         result.append(' ');
     result.append(getPropertyName(propertyID));
     result.appendLiteral(": ");
     result.append(value);
     if (isImportant)
         result.appendLiteral(" !important");
@@ skipping 155 matching lines @@
         case CSSPropertyWebkitMaskClip:
         case CSSPropertyWebkitMaskOrigin:
             shorthandPropertyID = CSSPropertyWebkitMask;
             break;
         case CSSPropertyVariable:
             result.append(getCustomPropertyText(property, numDecls++));
             continue;
         case CSSPropertyAll:
             result.append(getPropertyText(propertyID, property.value()->cssText(), property.isImportant(), numDecls++));
             continue;
+        case CSSPropertyApplyAtRule:
+            result.append(getApplyAtRuleText(property.value(), numDecls++));
+            continue;
         default:
             break;
         }
 
         unsigned shortPropertyIndex = shorthandPropertyID - firstCSSProperty;
         if (shorthandPropertyID) {
             if (shorthandPropertyUsed.get(shortPropertyIndex))
                 continue;
             if (!shorthandPropertyAppeared.get(shortPropertyIndex) && value.isNull())
                 value = m_propertySet.getPropertyValue(shorthandPropertyID);
@@ skipping 616 matching lines @@
             isInitialValue = false;
         if (!value->isInheritedValue())
             isInheritedValue = false;
         if (isImportant != m_propertySet.propertyIsImportant(shorthand.properties()[i]))
             return false;
     }
     return isInitialValue || isInheritedValue;
 }
 
 } // namespace blink