CSS Custom Properties (Variables)

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

 /*
  * Copyright (C) 2011 Andreas Kling (kling@webkit.org)
  *
  * 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
@@ skipping 15 matching lines @@
 
 #include "config.h"
 #include "core/css/CSSValue.h"
 
 #include "core/css/CSSBorderImageSliceValue.h"
 #include "core/css/CSSCanvasValue.h"
 #include "core/css/CSSContentDistributionValue.h"
 #include "core/css/CSSCounterValue.h"
 #include "core/css/CSSCrossfadeValue.h"
 #include "core/css/CSSCursorImageValue.h"
+#include "core/css/CSSCustomPropertyDeclaration.h"
 #include "core/css/CSSFontFaceSrcValue.h"
 #include "core/css/CSSFontFeatureValue.h"
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSGradientValue.h"
 #include "core/css/CSSGridLineNamesValue.h"
 #include "core/css/CSSGridTemplateAreasValue.h"
 #include "core/css/CSSImageSetValue.h"
 #include "core/css/CSSImageValue.h"
 #include "core/css/CSSInheritedValue.h"
 #include "core/css/CSSInitialValue.h"
@@ skipping 99 matching lines @@
         case ValueListClass:
             return compareCSSValues<CSSValueList>(*this, other);
         case ValuePairClass:
             return compareCSSValues<CSSValuePair>(*this, other);
         case ImageSetClass:
             return compareCSSValues<CSSImageSetValue>(*this, other);
         case CSSSVGDocumentClass:
             return compareCSSValues<CSSSVGDocumentValue>(*this, other);
         case CSSContentDistributionClass:
             return compareCSSValues<CSSContentDistributionValue>(*this, other);
+        case VariableClass:
+            return compareCSSValues<CSSCustomPropertyDeclaration>(*this, other);
         }
         ASSERT_NOT_REACHED();
         return false;
     }
     return false;
 }
 
 String CSSValue::cssText() const
 {
     switch (classType()) {
@@ skipping 48 matching lines @@
     case ValuePairClass:
         return toCSSValuePair(this)->customCSSText();
     case ValueListClass:
         return toCSSValueList(this)->customCSSText();
     case ImageSetClass:
         return toCSSImageSetValue(this)->customCSSText();
     case CSSSVGDocumentClass:
         return toCSSSVGDocumentValue(this)->customCSSText();
     case CSSContentDistributionClass:
         return toCSSContentDistributionValue(this)->customCSSText();
+    case VariableClass:
+        // TODO(leviw): We don't allow custom properties in CSSOM yet
+        ASSERT_NOT_REACHED();
     }
     ASSERT_NOT_REACHED();
     return String();
 }
 
 void CSSValue::destroy()
 {
     switch (classType()) {
     case BorderImageSliceClass:
         delete toCSSBorderImageSliceValue(this);
@@ skipping 75 matching lines @@
         return;
     case ImageSetClass:
         delete toCSSImageSetValue(this);
         return;
     case CSSSVGDocumentClass:
         delete toCSSSVGDocumentValue(this);
         return;
     case CSSContentDistributionClass:
         delete toCSSContentDistributionValue(this);
         return;
+    case VariableClass:
+        delete toCSSCustomPropertyDeclaration(this);
+        return;
     }
     ASSERT_NOT_REACHED();
 }
 
 void CSSValue::finalizeGarbageCollectedObject()
 {
     switch (classType()) {
     case BorderImageSliceClass:
         toCSSBorderImageSliceValue(this)->~CSSBorderImageSliceValue();
         return;
@@ skipping 74 matching lines @@
         return;
     case ImageSetClass:
         toCSSImageSetValue(this)->~CSSImageSetValue();
         return;
     case CSSSVGDocumentClass:
         toCSSSVGDocumentValue(this)->~CSSSVGDocumentValue();
         return;
     case CSSContentDistributionClass:
         toCSSContentDistributionValue(this)->~CSSContentDistributionValue();
         return;
+    case VariableClass:
+        return;

[Timothy Loh, 2015/09/30 02:09:27]

need to destruct?

     }
     ASSERT_NOT_REACHED();
 }
 
 DEFINE_TRACE(CSSValue)
 {
     switch (classType()) {
     case BorderImageSliceClass:
         toCSSBorderImageSliceValue(this)->traceAfterDispatch(visitor);
         return;
@@ skipping 74 matching lines @@
         return;
     case ImageSetClass:
         toCSSImageSetValue(this)->traceAfterDispatch(visitor);
         return;
     case CSSSVGDocumentClass:
         toCSSSVGDocumentValue(this)->traceAfterDispatch(visitor);
         return;
     case CSSContentDistributionClass:
         toCSSContentDistributionValue(this)->traceAfterDispatch(visitor);
         return;
+    case VariableClass:
+        return;

[Timothy Loh, 2015/09/30 02:09:27]

need to trace?

     }
     ASSERT_NOT_REACHED();
 }
 
 }