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-rw-r--r--Source/WebCore/rendering/HitTestResult.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/Source/WebCore/rendering/HitTestResult.h b/Source/WebCore/rendering/HitTestResult.h
index 3aa17e3..89b5ea1 100644
--- a/Source/WebCore/rendering/HitTestResult.h
+++ b/Source/WebCore/rendering/HitTestResult.h
@@ -27,6 +27,7 @@
#include "TextDirection.h"
#include <wtf/Forward.h>
#include <wtf/ListHashSet.h>
+#include <wtf/OwnPtr.h>
#include <wtf/RefPtr.h>
namespace WebCore {
@@ -44,6 +45,8 @@ class Scrollbar;
class HitTestResult {
public:
+ typedef ListHashSet<RefPtr<Node> > NodeSet;
+
HitTestResult();
HitTestResult(const IntPoint&);
// Pass non-negative padding values to perform a rect-based hit test.
@@ -112,10 +115,15 @@ public:
// enclosed by the boundaries of a node.
bool addNodeToRectBasedTestResult(Node*, int x, int y, const IntRect& = IntRect());
bool addNodeToRectBasedTestResult(Node*, int x, int y, const FloatRect&);
- const ListHashSet<RefPtr<Node> >& rectBasedTestResult() const { return m_rectBasedTestResult; }
void append(const HitTestResult&);
+ // If m_rectBasedTestResult is 0 then set it to a new NodeSet. Return *m_rectBasedTestResult. Lazy allocation makes
+ // sense because the NodeSet is seldom necessary, and it's somewhat expensive to allocate and initialize. This method does
+ // the same thing as mutableRectBasedTestResult(), but here the return value is const.
+ const NodeSet& rectBasedTestResult() const;
+
private:
+ NodeSet& mutableRectBasedTestResult(); // See above.
#if ENABLE(VIDEO)
HTMLMediaElement* mediaElement() const;
@@ -134,7 +142,7 @@ private:
int m_rightPadding;
int m_bottomPadding;
int m_leftPadding;
- ListHashSet<RefPtr<Node> > m_rectBasedTestResult;
+ mutable OwnPtr<NodeSet> m_rectBasedTestResult;
};
inline IntRect HitTestResult::rectForPoint(int x, int y) const