Source/core/page/scrolling/ScrollingCoordinator.h - Issue 22419002: Set up clip and scroll parents on the blink side.

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Issue 22419002: Set up clip and scroll parents on the blink side. (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: . Created 7 years, 3 months ago

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1 /*	1 /*

2 * Copyright (C) 2011 Apple Inc. All rights reserved.	2 * Copyright (C) 2011 Apple Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions	5 * modification, are permitted provided that the following conditions

6 * are met:	6 * are met:

7 * 1. Redistributions of source code must retain the above copyright	7 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.	8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright	9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the	10 * notice, this list of conditions and the following disclaimer in the

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92	92

93 void willDestroyScrollableArea(ScrollableArea*);	93 void willDestroyScrollableArea(ScrollableArea*);

94 // Returns true if the coordinator handled this change.	94 // Returns true if the coordinator handled this change.

95 bool scrollableAreaScrollLayerDidChange(ScrollableArea*);	95 bool scrollableAreaScrollLayerDidChange(ScrollableArea*);

96 void scrollableAreaScrollbarLayerDidChange(ScrollableArea*, ScrollbarOrienta tion);	96 void scrollableAreaScrollbarLayerDidChange(ScrollableArea*, ScrollbarOrienta tion);

97 void setLayerIsContainerForFixedPositionLayers(GraphicsLayer*, bool);	97 void setLayerIsContainerForFixedPositionLayers(GraphicsLayer*, bool);

98 void updateLayerPositionConstraint(RenderLayer*);	98 void updateLayerPositionConstraint(RenderLayer*);

99 void touchEventTargetRectsDidChange(const Document*);	99 void touchEventTargetRectsDidChange(const Document*);

100 void willDestroyRenderLayer(RenderLayer*);	100 void willDestroyRenderLayer(RenderLayer*);

101	101

	102 void updateScrollParentForLayer(RenderLayer* child, RenderLayer* parent);

	103 void updateClipParentForLayer(RenderLayer* child, RenderLayer* parent);

	104

102 static String mainThreadScrollingReasonsAsText(MainThreadScrollingReasons);	105 static String mainThreadScrollingReasonsAsText(MainThreadScrollingReasons);

103 String mainThreadScrollingReasonsAsText() const;	106 String mainThreadScrollingReasonsAsText() const;

104 Region computeShouldHandleScrollGestureOnMainThreadRegion(const Frame*, cons t IntPoint& frameLocation) const;	107 Region computeShouldHandleScrollGestureOnMainThreadRegion(const Frame*, cons t IntPoint& frameLocation) const;

105	108

106 protected:	109 protected:

107 explicit ScrollingCoordinator(Page*);	110 explicit ScrollingCoordinator(Page*);

108	111

109 static GraphicsLayer* scrollLayerForScrollableArea(ScrollableArea*);	112 static GraphicsLayer* scrollLayerForScrollableArea(ScrollableArea*);

110 static GraphicsLayer* horizontalScrollbarLayerForScrollableArea(ScrollableAr ea*);	113 static GraphicsLayer* horizontalScrollbarLayerForScrollableArea(ScrollableAr ea*);

111 static GraphicsLayer* verticalScrollbarLayerForScrollableArea(ScrollableArea *);	114 static GraphicsLayer* verticalScrollbarLayerForScrollableArea(ScrollableArea *);

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139	142

140 typedef HashMap<ScrollableArea*, OwnPtr<WebKit::WebScrollbarLayer> > Scrollb arMap;	143 typedef HashMap<ScrollableArea*, OwnPtr<WebKit::WebScrollbarLayer> > Scrollb arMap;

141 ScrollbarMap m_horizontalScrollbars;	144 ScrollbarMap m_horizontalScrollbars;

142 ScrollbarMap m_verticalScrollbars;	145 ScrollbarMap m_verticalScrollbars;

143 HashSet<const RenderLayer*> m_layersWithTouchRects;	146 HashSet<const RenderLayer*> m_layersWithTouchRects;

144 };	147 };

145	148

146 } // namespace WebCore	149 } // namespace WebCore

147	150

148 #endif // ScrollingCoordinator_h	151 #endif // ScrollingCoordinator_h

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