Modified: trunk/Source/WebCore/dom/Node.h (114332 => 114333)
--- trunk/Source/WebCore/dom/Node.h 2012-04-17 02:02:26 UTC (rev 114332)
+++ trunk/Source/WebCore/dom/Node.h 2012-04-17 02:15:18 UTC (rev 114333)
@@ -90,7 +90,7 @@
typedef int ExceptionCode;
-const int nodeStyleChangeShift = 21;
+const int nodeStyleChangeShift = 17;
// SyntheticStyleChange means that we need to go through the entire style change logic even though
// no style property has actually changed. It is used to restructure the tree when, for instance,
@@ -200,21 +200,20 @@
virtual bool isActiveNode() const { return false; }
// Other methods (not part of DOM)
+ bool isContainerNode() const;
+ bool isElementNode() const;
+ bool isStyledElement() const;
+ bool isTextNode() const;
+ bool isHTMLElement() const;
+ bool isSVGElement() const;
+ bool isShadowRoot() const;
- bool isElementNode() const { return getFlag(IsElementFlag); }
- bool isContainerNode() const { return getFlag(IsContainerFlag); }
- bool isTextNode() const { return getFlag(IsTextFlag); }
- bool isHTMLElement() const { return getFlag(IsHTMLFlag); }
- bool isSVGElement() const { return getFlag(IsSVGFlag); }
-
virtual bool isMediaControlElement() const { return false; }
virtual bool isMediaControls() const { return false; }
- bool isStyledElement() const { return getFlag(IsStyledElementFlag); }
virtual bool isFrameOwnerElement() const { return false; }
virtual bool isAttributeNode() const { return false; }
virtual bool isCharacterDataNode() const { return false; }
bool isDocumentNode() const;
- bool isShadowRoot() const { return getFlag(IsShadowRootFlag); }
bool inNamedFlow() const { return getFlag(InNamedFlowFlag); }
Node* shadowAncestorNode() const;
@@ -629,72 +628,79 @@
bool hasScopedHTMLStyleChild() const;
size_t numberOfScopedHTMLStyleChildren() const;
+ enum NodeTypeTag {
+ TypeTagOther = 0, // Node subclasses other than listed below.
+ TypeTagText, // Text
+ TypeTagContainerNode, // ContainerNode subclasses other than Element and ShadowRoot.
+ TypeTagElement, // Non-Styled Element
+ TypeTagStyledElement, // StyledElement other than HTML and SVG (For now MathMLElement family is the only one.)
+ TypeTagHTMLElement, // HTMLElement
+ TypeTagSVGElement, // SVGElement
+ TypeTagShadowRoot, // ShadowRoot
+ TypeTagSize
+ };
+
private:
+
enum NodeFlags {
- IsTextFlag = 1,
- IsContainerFlag = 1 << 1,
- IsElementFlag = 1 << 2,
- IsStyledElementFlag = 1 << 3,
- IsHTMLFlag = 1 << 4,
- IsSVGFlag = 1 << 5,
- IsAttachedFlag = 1 << 6,
- ChildNeedsStyleRecalcFlag = 1 << 7,
- InDocumentFlag = 1 << 8,
- IsLinkFlag = 1 << 9,
- IsActiveFlag = 1 << 10,
- IsHoveredFlag = 1 << 11,
- InActiveChainFlag = 1 << 12,
- InDetachFlag = 1 << 13,
- HasRareDataFlag = 1 << 14,
- IsShadowRootFlag = 1 << 15,
+ NodeTypeTagMask = 1 << 2 | 1 << 1 | 1,
+ IsAttachedFlag = 1 << 3,
+ ChildNeedsStyleRecalcFlag = 1 << 4,
+ InDocumentFlag = 1 << 5,
+ IsLinkFlag = 1 << 6,
+ IsActiveFlag = 1 << 7,
+ IsHoveredFlag = 1 << 8,
+ InActiveChainFlag = 1 << 9,
+ InDetachFlag = 1 << 10,
+ HasRareDataFlag = 1 << 11,
// These bits are used by derived classes, pulled up here so they can
// be stored in the same memory word as the Node bits above.
- IsParsingChildrenFinishedFlag = 1 << 16, // Element
- IsStyleAttributeValidFlag = 1 << 17, // StyledElement
+ IsParsingChildrenFinishedFlag = 1 << 12, // Element
+ IsStyleAttributeValidFlag = 1 << 13, // StyledElement
#if ENABLE(SVG)
- AreSVGAttributesValidFlag = 1 << 18, // Element
- IsSynchronizingSVGAttributesFlag = 1 << 19, // SVGElement
- HasSVGRareDataFlag = 1 << 20, // SVGElement
+ AreSVGAttributesValidFlag = 1 << 14, // Element
+ IsSynchronizingSVGAttributesFlag = 1 << 15, // SVGElement
+ HasSVGRareDataFlag = 1 << 16, // SVGElement
#endif
StyleChangeMask = 1 << nodeStyleChangeShift | 1 << (nodeStyleChangeShift + 1),
- SelfOrAncestorHasDirAutoFlag = 1 << 23,
- HasCustomWillOrDidRecalcStyleFlag = 1 << 24,
- HasCustomStyleForRendererFlag = 1 << 25,
+ SelfOrAncestorHasDirAutoFlag = 1 << 19,
+ HasCustomWillOrDidRecalcStyleFlag = 1 << 20,
+ HasCustomStyleForRendererFlag = 1 << 21,
+ HasNameFlag = 1 << 22,
+ AttributeStyleDirtyFlag = 1 << 23,
+ InNamedFlowFlag = 1 << 24,
- HasNameFlag = 1 << 26,
-
- AttributeStyleDirtyFlag = 1 << 27,
-
#if ENABLE(SVG)
- DefaultNodeFlags = IsParsingChildrenFinishedFlag | IsStyleAttributeValidFlag | AreSVGAttributesValidFlag,
+ DefaultNodeFlags = IsParsingChildrenFinishedFlag | IsStyleAttributeValidFlag | AreSVGAttributesValidFlag
#else
- DefaultNodeFlags = IsParsingChildrenFinishedFlag | IsStyleAttributeValidFlag,
+ DefaultNodeFlags = IsParsingChildrenFinishedFlag | IsStyleAttributeValidFlag
#endif
- InNamedFlowFlag = 1 << 29
};
- // 3 bits remaining
+ // 7 bits remaining
bool getFlag(NodeFlags mask) const { return m_nodeFlags & mask; }
void setFlag(bool f, NodeFlags mask) const { m_nodeFlags = (m_nodeFlags & ~mask) | (-(int32_t)f & mask); }
void setFlag(NodeFlags mask) const { m_nodeFlags |= mask; }
void clearFlag(NodeFlags mask) const { m_nodeFlags &= ~mask; }
-
+ NodeTypeTag typeTag() const { return static_cast<NodeTypeTag>(m_nodeFlags & NodeTypeTagMask); }
+
protected:
enum ConstructionType {
- CreateOther = DefaultNodeFlags,
- CreateText = DefaultNodeFlags | IsTextFlag,
- CreateContainer = DefaultNodeFlags | IsContainerFlag,
- CreateElement = CreateContainer | IsElementFlag,
- CreateShadowRoot = CreateContainer | IsShadowRootFlag,
- CreateStyledElement = CreateElement | IsStyledElementFlag,
- CreateHTMLElement = CreateStyledElement | IsHTMLFlag,
- CreateSVGElement = CreateStyledElement | IsSVGFlag,
- CreateDocument = CreateContainer | InDocumentFlag
+ CreateOther = DefaultNodeFlags | TypeTagOther,
+ CreateText = DefaultNodeFlags | TypeTagText,
+ CreateContainer = DefaultNodeFlags | TypeTagContainerNode,
+ CreateElement = DefaultNodeFlags | TypeTagElement,
+ CreateShadowRoot = DefaultNodeFlags | TypeTagShadowRoot,
+ CreateStyledElement = DefaultNodeFlags | TypeTagStyledElement,
+ CreateHTMLElement = DefaultNodeFlags | TypeTagHTMLElement,
+ CreateSVGElement = DefaultNodeFlags | TypeTagSVGElement,
+ CreateDocument = DefaultNodeFlags | TypeTagContainerNode | InDocumentFlag
};
+
Node(Document*, ConstructionType);
virtual void didMoveToNewDocument(Document* oldDocument);
@@ -802,7 +808,7 @@
inline ContainerNode* Node::parentNode() const
{
- return getFlag(IsShadowRootFlag) ? 0 : parent();
+ return isShadowRoot() ? 0 : parent();
}
inline ContainerNode* Node::parentOrHostNode() const
@@ -812,7 +818,7 @@
inline ContainerNode* Node::parentNodeGuaranteedHostFree() const
{
- ASSERT(!getFlag(IsShadowRootFlag));
+ ASSERT(!isShadowRoot());
return parentOrHostNode();
}
@@ -829,6 +835,44 @@
reattach();
}
+inline bool Node::isContainerNode() const
+{
+ NodeTypeTag tag = typeTag();
+ return TypeTagContainerNode <= tag && tag <= TypeTagShadowRoot;
+}
+
+inline bool Node::isElementNode() const
+{
+ NodeTypeTag tag = typeTag();
+ return TypeTagElement <= tag && tag <= TypeTagSVGElement;
+}
+
+inline bool Node::isStyledElement() const
+{
+ NodeTypeTag tag = typeTag();
+ return TypeTagStyledElement <= tag && tag <= TypeTagSVGElement;
+}
+
+inline bool Node::isTextNode() const
+{
+ return TypeTagText == typeTag();
+}
+
+inline bool Node::isHTMLElement() const
+{
+ return TypeTagHTMLElement == typeTag();
+}
+
+inline bool Node::isSVGElement() const
+{
+ return TypeTagSVGElement == typeTag();
+}
+
+inline bool Node::isShadowRoot() const
+{
+ return TypeTagShadowRoot == typeTag();
+}
+
} //namespace
#ifndef NDEBUG
