[Experimental] CSSSerializer Proof-of-concept

third_party/WebKit/Source/core/css/CSSGradientValue.h

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * 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 40 matching lines @@
 // When allocated on the stack its members are found by conservative
 // stack scanning. When allocated as part of Vectors in heap-allocated
 // objects its members are visited via the containing object's
 // (CSSGradientValue) traceAfterDispatch method.
 //
 // http://www.w3.org/TR/css3-images/#color-stop-syntax
 struct CSSGradientColorStop {
     DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
 public:
     CSSGradientColorStop() : m_colorIsDerivedFromElement(false) { }
+
     RefPtrWillBeMember<CSSPrimitiveValue> m_position; // percentage or length
     RefPtrWillBeMember<CSSValue> m_color;
     bool m_colorIsDerivedFromElement;
     bool operator==(const CSSGradientColorStop& other) const
     {
         return compareCSSValuePtr(m_color, other.m_color)
             && compareCSSValuePtr(m_position, other.m_position);
     }
     bool isHint() const
     {
         ASSERT(m_color || m_position);
         return !m_color;
     }
 
+    void serialize(CSSSerializeStream*) const;
+    void deserialize(CSSDeserializeStream*);
     DECLARE_TRACE();
 };
 
 } // namespace blink
 
 
 // We have to declare the VectorTraits specialization before CSSGradientValue
 // declares its inline capacity vector below.
 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::CSSGradientColorStop);
 
@@ skipping 21 matching lines @@
     bool isFixedSize() const { return false; }
     IntSize fixedSize(const LayoutObject*) const { return IntSize(); }
 
     bool isPending() const { return false; }
     bool knownToBeOpaque(const LayoutObject*) const;
 
     void loadSubimages(Document*) { }
 
     void getStopColors(WillBeHeapVector<Color>& stopColors, const LayoutObject*) const;
 
+    void deserializeAfterDispatch(CSSDeserializeStream*);
+    void serializeAfterDispatch(CSSSerializeStream*) const;
+
     DECLARE_TRACE_AFTER_DISPATCH();
 
 protected:
     CSSGradientValue(ClassType classType, CSSGradientRepeat repeat, CSSGradientType gradientType)
         : CSSImageGeneratorValue(classType)
         , m_stopsSorted(false)
         , m_gradientType(gradientType)
         , m_repeating(repeat == Repeating)
     {
     }
@@ skipping 17 matching lines @@
     WillBeHeapVector<CSSGradientColorStop, 2> m_stops;
     bool m_stopsSorted;
     CSSGradientType m_gradientType;
     bool m_repeating;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSGradientValue, isGradientValue());
 
 class CSSLinearGradientValue final : public CSSGradientValue {
 public:
-
     static PassRefPtrWillBeRawPtr<CSSLinearGradientValue> create(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSLinearGradient)
     {
         return adoptRefWillBeNoop(new CSSLinearGradientValue(repeat, gradientType));
     }
+    static PassRefPtrWillBeRawPtr<CSSLinearGradientValue> deserializeAfterDispatch(CSSDeserializeStream*);
 
     void setAngle(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_angle = val; }
 
     String customCSSText() const;
 
     // Create the gradient for a given size.
     PassRefPtr<Gradient> createGradient(const CSSToLengthConversionData&, const IntSize&, const LayoutObject&);
 
     bool equals(const CSSLinearGradientValue&) const;
 
+    void serializeAfterDispatch(CSSSerializeStream*) const;
+
     DECLARE_TRACE_AFTER_DISPATCH();
 
 private:
     CSSLinearGradientValue(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSLinearGradient)
         : CSSGradientValue(LinearGradientClass, repeat, gradientType)
     {
     }
 
     RefPtrWillBeMember<CSSPrimitiveValue> m_angle; // may be null.
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSLinearGradientValue, isLinearGradientValue());
 
 class CSSRadialGradientValue final : public CSSGradientValue {
 public:
     static PassRefPtrWillBeRawPtr<CSSRadialGradientValue> create(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSRadialGradient)
     {
         return adoptRefWillBeNoop(new CSSRadialGradientValue(repeat, gradientType));
     }
+    static PassRefPtrWillBeRawPtr<CSSRadialGradientValue> deserializeAfterDispatch(CSSDeserializeStream*);
 
     String customCSSText() const;
 
     void setFirstRadius(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_firstRadius = val; }
     void setSecondRadius(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_secondRadius = val; }
 
     void setShape(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_shape = val; }
     void setSizingBehavior(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_sizingBehavior = val; }
 
     void setEndHorizontalSize(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_endHorizontalSize = val; }
     void setEndVerticalSize(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_endVerticalSize = val; }
 
     // Create the gradient for a given size.
     PassRefPtr<Gradient> createGradient(const CSSToLengthConversionData&, const IntSize&, const LayoutObject&);
 
     bool equals(const CSSRadialGradientValue&) const;
 
+    void serializeAfterDispatch(CSSSerializeStream*) const;
+
     DECLARE_TRACE_AFTER_DISPATCH();
 
 private:
     CSSRadialGradientValue(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSRadialGradient)
         : CSSGradientValue(RadialGradientClass, repeat, gradientType)
     {
     }
 
     // Resolve points/radii to front end values.
     float resolveRadius(CSSPrimitiveValue*, const CSSToLengthConversionData&, float* widthOrHeight = 0);
 
     // These may be null for non-deprecated gradients.
     RefPtrWillBeMember<CSSPrimitiveValue> m_firstRadius;
     RefPtrWillBeMember<CSSPrimitiveValue> m_secondRadius;
 
     // The below are only used for non-deprecated gradients. Any of them may be null.
     RefPtrWillBeMember<CSSPrimitiveValue> m_shape;
     RefPtrWillBeMember<CSSPrimitiveValue> m_sizingBehavior;
 
     RefPtrWillBeMember<CSSPrimitiveValue> m_endHorizontalSize;
     RefPtrWillBeMember<CSSPrimitiveValue> m_endVerticalSize;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSRadialGradientValue, isRadialGradientValue());
 
 } // namespace blink
 
 #endif // CSSGradientValue_h