commit 0a4465df85217a6dd10a180556a755dfc4885fa4
author commit-queue@webkit.org <commit-queue@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Thu Sep 15 04:06:49 2011 +0000
committer commit-queue@webkit.org <commit-queue@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Thu Sep 15 04:06:49 2011 +0000
tree 7f75ef8636eaf28dfbc1deec402bdafa57b1ef87
parent ac03a07fa2a537d177ec2ccb0d7d435e4f57ba2d

Chromium: Add a layer for rubber-band overhang painting to the hardware path.
https://bugs.webkit.org/show_bug.cgi?id=66969

Also, add layout tests for rubber-band overhang drawing for compositing path.

Patch by Alexei Svitkine <asvitkine@chromium.org> on 2011-09-14
Reviewed by James Robinson.

* page/FrameView.cpp:
(WebCore::FrameView::layerForOverhangAreas):
* page/FrameView.h:
* platform/ScrollView.cpp:
(WebCore::ScrollView::scrollContents):
(WebCore::ScrollView::wheelEvent):
* platform/ScrollView.h:
* platform/ScrollableArea.h:
(WebCore::ScrollableArea::layerForOverhangAreas):
* rendering/RenderLayerCompositor.cpp:
(WebCore::RenderLayerCompositor::frameViewDidChangeSize):
(WebCore::RenderLayerCompositor::paintContents):
(WebCore::RenderLayerCompositor::updateOverflowControlsLayers):
(WebCore::RenderLayerCompositor::destroyRootLayer):
* rendering/RenderLayerCompositor.h:
(WebCore::RenderLayerCompositor::layerForOverhangAreas):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95158 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebCore/rendering/RenderLayerCompositor.h

diff --git a/Source/WebCore/rendering/RenderLayerCompositor.h b/Source/WebCore/rendering/RenderLayerCompositor.h
index ad00814..72108fe 100644
--- a/Source/WebCore/rendering/RenderLayerCompositor.h
+++ b/Source/WebCore/rendering/RenderLayerCompositor.h
@@ -196,6 +196,9 @@
     GraphicsLayer* layerForHorizontalScrollbar() const { return m_layerForHorizontalScrollbar.get(); }
     GraphicsLayer* layerForVerticalScrollbar() const { return m_layerForVerticalScrollbar.get(); }
     GraphicsLayer* layerForScrollCorner() const { return m_layerForScrollCorner.get(); }
+#if PLATFORM(CHROMIUM) && ENABLE(RUBBER_BANDING)
+    GraphicsLayer* layerForOverhangAreas() const { return m_layerForOverhangAreas.get(); }
+#endif
 
 private:
     // GraphicsLayerClient Implementation
@@ -275,6 +278,9 @@
     bool requiresHorizontalScrollbarLayer() const;
     bool requiresVerticalScrollbarLayer() const;
     bool requiresScrollCornerLayer() const;
+#if PLATFORM(CHROMIUM) && ENABLE(RUBBER_BANDING)
+    bool requiresOverhangAreasLayer() const;
+#endif
 
 private:
     RenderView* m_renderView;
@@ -311,6 +317,9 @@
     OwnPtr<GraphicsLayer> m_layerForHorizontalScrollbar;
     OwnPtr<GraphicsLayer> m_layerForVerticalScrollbar;
     OwnPtr<GraphicsLayer> m_layerForScrollCorner;
+#if PLATFORM(CHROMIUM) && ENABLE(RUBBER_BANDING)
+    OwnPtr<GraphicsLayer> m_layerForOverhangAreas;
+#endif
 #if PROFILE_LAYER_REBUILD
     int m_rootLayerUpdateCount;
 #endif