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27 #ifndef GraphicsLayerUpdater_h
28 #define GraphicsLayerUpdater_h
30 #include "platform/graphics/GraphicsLayer.h"
31 #include "wtf/Vector.h"
39 class GraphicsLayerUpdater {
43 : m_compositingStackingContainer(0)
44 , m_compositingAncestor(0)
48 UpdateContext(const UpdateContext&, const RenderLayer&);
50 const RenderLayer* compositingContainer(const RenderLayer&) const;
52 const RenderLayer* m_compositingStackingContainer;
53 const RenderLayer* m_compositingAncestor;
57 GraphicsLayerUpdater();
58 ~GraphicsLayerUpdater();
65 void update(RenderLayer&, UpdateType, const UpdateContext& = UpdateContext());
66 void rebuildTree(RenderLayer&, GraphicsLayerVector& childLayersOfEnclosingLayer);
68 bool needsRebuildTree() const { return m_needsRebuildTree; }
71 static void assertNeedsToUpdateGraphicsLayerBitsCleared(RenderLayer&);
75 bool m_needsRebuildTree;
78 } // namespace WebCore
80 #endif // GraphicsLayerUpdater_h