Upstream version 5.34.104.0

[platform/framework/web/crosswalk.git] / src / third_party / WebKit / Source / core / css / CSSGradientValue.h

diff --git a/src/third_party/WebKit/Source/core/css/CSSGradientValue.h b/src/third_party/WebKit/Source/core/css/CSSGradientValue.h
index 7179b6f..9b29da6 100644 (file)
--- a/src/third_party/WebKit/Source/core/css/CSSGradientValue.h
+++ b/src/third_party/WebKit/Source/core/css/CSSGradientValue.h
@@ -47,10 +47,17 @@ enum CSSGradientType {
 };
 enum CSSGradientRepeat { NonRepeating, Repeating };
 
+// This struct is stack allocated and allocated as part of vectors.
+// 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.
 struct CSSGradientColorStop {
+    ALLOW_ONLY_INLINE_ALLOCATION();
+public:
     CSSGradientColorStop() : m_colorIsDerivedFromElement(false) { };
-    RefPtr<CSSPrimitiveValue> m_position; // percentage or length
-    RefPtr<CSSPrimitiveValue> m_color;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_position; // percentage or length
+    RefPtrWillBeMember<CSSPrimitiveValue> m_color;
     Color m_resolvedColor;
     bool m_colorIsDerivedFromElement;
     bool operator==(const CSSGradientColorStop& other) const
@@ -58,16 +65,18 @@ struct CSSGradientColorStop {
         return compareCSSValuePtr(m_color, other.m_color)
             && compareCSSValuePtr(m_position, other.m_position);
     }
+
+    void trace(Visitor*);
 };
 
 class CSSGradientValue : public CSSImageGeneratorValue {
 public:
     PassRefPtr<Image> image(RenderObject*, const IntSize&);
 
-    void setFirstX(PassRefPtr<CSSPrimitiveValue> val) { m_firstX = val; }
-    void setFirstY(PassRefPtr<CSSPrimitiveValue> val) { m_firstY = val; }
-    void setSecondX(PassRefPtr<CSSPrimitiveValue> val) { m_secondX = val; }
-    void setSecondY(PassRefPtr<CSSPrimitiveValue> val) { m_secondY = val; }
+    void setFirstX(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_firstX = val; }
+    void setFirstY(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_firstY = val; }
+    void setSecondX(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_secondX = val; }
+    void setSecondY(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_secondY = val; }
 
     void addStop(const CSSGradientColorStop& stop) { m_stops.append(stop); }
 
@@ -86,7 +95,9 @@ public:
     bool knownToBeOpaque(const RenderObject*) const;
 
     void loadSubimages(ResourceFetcher*) { }
-    PassRefPtr<CSSGradientValue> gradientWithStylesResolved(const TextLinkColors&, Color currentColor);
+    PassRefPtrWillBeRawPtr<CSSGradientValue> gradientWithStylesResolved(const TextLinkColors&, Color currentColor);
+
+    void traceAfterDispatch(Visitor*);
 
 protected:
     CSSGradientValue(ClassType classType, CSSGradientRepeat repeat, CSSGradientType gradientType)
@@ -118,14 +129,14 @@ protected:
     bool isCacheable() const;
 
     // Points. Some of these may be null.
-    RefPtr<CSSPrimitiveValue> m_firstX;
-    RefPtr<CSSPrimitiveValue> m_firstY;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_firstX;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_firstY;
 
-    RefPtr<CSSPrimitiveValue> m_secondX;
-    RefPtr<CSSPrimitiveValue> m_secondY;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_secondX;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_secondY;
 
     // Stops
-    Vector<CSSGradientColorStop, 2> m_stops;
+    WillBeHeapVector<CSSGradientColorStop, 2> m_stops;
     bool m_stopsSorted;
     CSSGradientType m_gradientType;
     bool m_repeating;
@@ -136,25 +147,27 @@ DEFINE_CSS_VALUE_TYPE_CASTS(CSSGradientValue, isGradientValue());
 class CSSLinearGradientValue : public CSSGradientValue {
 public:
 
-    static PassRefPtr<CSSLinearGradientValue> create(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSLinearGradient)
+    static PassRefPtrWillBeRawPtr<CSSLinearGradientValue> create(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSLinearGradient)
     {
-        return adoptRef(new CSSLinearGradientValue(repeat, gradientType));
+        return adoptRefCountedWillBeRefCountedGarbageCollected(new CSSLinearGradientValue(repeat, gradientType));
     }
 
-    void setAngle(PassRefPtr<CSSPrimitiveValue> val) { m_angle = val; }
+    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&);
 
-    PassRefPtr<CSSLinearGradientValue> clone() const
+    PassRefPtrWillBeRawPtr<CSSLinearGradientValue> clone() const
     {
-        return adoptRef(new CSSLinearGradientValue(*this));
+        return adoptRefCountedWillBeRefCountedGarbageCollected(new CSSLinearGradientValue(*this));
     }
 
     bool equals(const CSSLinearGradientValue&) const;
 
+    void traceAfterDispatch(Visitor*);
+
 private:
     CSSLinearGradientValue(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSLinearGradient)
         : CSSGradientValue(LinearGradientClass, repeat, gradientType)
@@ -167,39 +180,41 @@ private:
     {
     }
 
-    RefPtr<CSSPrimitiveValue> m_angle; // may be null.
+    RefPtrWillBeMember<CSSPrimitiveValue> m_angle; // may be null.
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSLinearGradientValue, isLinearGradientValue());
 
 class CSSRadialGradientValue : public CSSGradientValue {
 public:
-    static PassRefPtr<CSSRadialGradientValue> create(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSRadialGradient)
+    static PassRefPtrWillBeRawPtr<CSSRadialGradientValue> create(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSRadialGradient)
     {
-        return adoptRef(new CSSRadialGradientValue(repeat, gradientType));
+        return adoptRefCountedWillBeRefCountedGarbageCollected(new CSSRadialGradientValue(repeat, gradientType));
     }
 
-    PassRefPtr<CSSRadialGradientValue> clone() const
+    PassRefPtrWillBeRawPtr<CSSRadialGradientValue> clone() const
     {
-        return adoptRef(new CSSRadialGradientValue(*this));
+        return adoptRefCountedWillBeRefCountedGarbageCollected(new CSSRadialGradientValue(*this));
     }
 
     String customCSSText() const;
 
-    void setFirstRadius(PassRefPtr<CSSPrimitiveValue> val) { m_firstRadius = val; }
-    void setSecondRadius(PassRefPtr<CSSPrimitiveValue> val) { m_secondRadius = val; }
+    void setFirstRadius(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_firstRadius = val; }
+    void setSecondRadius(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_secondRadius = val; }
 
-    void setShape(PassRefPtr<CSSPrimitiveValue> val) { m_shape = val; }
-    void setSizingBehavior(PassRefPtr<CSSPrimitiveValue> val) { m_sizingBehavior = val; }
+    void setShape(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_shape = val; }
+    void setSizingBehavior(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_sizingBehavior = val; }
 
-    void setEndHorizontalSize(PassRefPtr<CSSPrimitiveValue> val) { m_endHorizontalSize = val; }
-    void setEndVerticalSize(PassRefPtr<CSSPrimitiveValue> val) { m_endVerticalSize = 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&);
 
     bool equals(const CSSRadialGradientValue&) const;
 
+    void traceAfterDispatch(Visitor*);
+
 private:
     CSSRadialGradientValue(CSSGradientRepeat repeat, CSSGradientType gradientType = CSSRadialGradient)
         : CSSGradientValue(RadialGradientClass, repeat, gradientType)
@@ -222,15 +237,15 @@ private:
     float resolveRadius(CSSPrimitiveValue*, const CSSToLengthConversionData&, float* widthOrHeight = 0);
 
     // These may be null for non-deprecated gradients.
-    RefPtr<CSSPrimitiveValue> m_firstRadius;
-    RefPtr<CSSPrimitiveValue> m_secondRadius;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_firstRadius;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_secondRadius;
 
     // The below are only used for non-deprecated gradients. Any of them may be null.
-    RefPtr<CSSPrimitiveValue> m_shape;
-    RefPtr<CSSPrimitiveValue> m_sizingBehavior;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_shape;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_sizingBehavior;
 
-    RefPtr<CSSPrimitiveValue> m_endHorizontalSize;
-    RefPtr<CSSPrimitiveValue> m_endVerticalSize;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_endHorizontalSize;
+    RefPtrWillBeMember<CSSPrimitiveValue> m_endVerticalSize;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSRadialGradientValue, isRadialGradientValue());