Source/core/page/scrolling/ScrollingCoordinator.h - Issue 138453004: Pinch/Zoom Infrastructure & Plumbing CL (Prequel)

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Issue 138453004: Pinch/Zoom Infrastructure & Plumbing CL (Prequel) (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Use setContentsRect() instead of directly accessing contentLayer bounds. Created 6 years, 11 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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138 bool m_touchEventTargetRectsAreDirty;	138 bool m_touchEventTargetRectsAreDirty;

139	139

140 private:	140 private:

141 void recomputeWheelEventHandlerCountForFrameView(FrameView*);	141 void recomputeWheelEventHandlerCountForFrameView(FrameView*);

142 void setShouldUpdateScrollLayerPositionOnMainThread(MainThreadScrollingReaso ns);	142 void setShouldUpdateScrollLayerPositionOnMainThread(MainThreadScrollingReaso ns);

143	143

144 bool hasVisibleSlowRepaintViewportConstrainedObjects(FrameView*) const;	144 bool hasVisibleSlowRepaintViewportConstrainedObjects(FrameView*) const;

145 void updateShouldUpdateScrollLayerPositionOnMainThread();	145 void updateShouldUpdateScrollLayerPositionOnMainThread();

146	146

147 static blink::WebLayer* scrollingWebLayerForScrollableArea(ScrollableArea*);	147 static blink::WebLayer* scrollingWebLayerForScrollableArea(ScrollableArea*);

	148 static blink::WebLayer* containerWebLayerForScrollableArea(ScrollableArea*);

148	149

149 bool touchHitTestingEnabled() const;	150 bool touchHitTestingEnabled() const;

150 void setShouldHandleScrollGestureOnMainThreadRegion(const Region&);	151 void setShouldHandleScrollGestureOnMainThreadRegion(const Region&);

151 void setTouchEventTargetRects(const LayerHitTestRects&);	152 void setTouchEventTargetRects(const LayerHitTestRects&);

152 void computeTouchEventTargetRects(LayerHitTestRects&);	153 void computeTouchEventTargetRects(LayerHitTestRects&);

153 void setWheelEventHandlerCount(unsigned);	154 void setWheelEventHandlerCount(unsigned);

154	155

155 blink::WebScrollbarLayer* addWebScrollbarLayer(ScrollableArea*, ScrollbarOri entation, PassOwnPtr<blink::WebScrollbarLayer>);	156 blink::WebScrollbarLayer* addWebScrollbarLayer(ScrollableArea*, ScrollbarOri entation, PassOwnPtr<blink::WebScrollbarLayer>);

156 blink::WebScrollbarLayer* getWebScrollbarLayer(ScrollableArea*, ScrollbarOri entation);	157 blink::WebScrollbarLayer* getWebScrollbarLayer(ScrollableArea*, ScrollbarOri entation);

157 void removeWebScrollbarLayer(ScrollableArea*, ScrollbarOrientation);	158 void removeWebScrollbarLayer(ScrollableArea*, ScrollbarOrientation);

158	159

159 bool frameViewIsScrollableIsDirty() const;	160 bool frameViewIsScrollableIsDirty() const;

160	161

161 typedef HashMap<ScrollableArea*, OwnPtr<blink::WebScrollbarLayer> > Scrollba rMap;	162 typedef HashMap<ScrollableArea*, OwnPtr<blink::WebScrollbarLayer> > Scrollba rMap;

162 ScrollbarMap m_horizontalScrollbars;	163 ScrollbarMap m_horizontalScrollbars;

163 ScrollbarMap m_verticalScrollbars;	164 ScrollbarMap m_verticalScrollbars;

164 HashSet<const RenderLayer*> m_layersWithTouchRects;	165 HashSet<const RenderLayer*> m_layersWithTouchRects;

165 bool m_wasFrameScrollable;	166 bool m_wasFrameScrollable;

166	167

167 // This is retained for testing.	168 // This is retained for testing.

168 MainThreadScrollingReasons m_lastMainThreadScrollingReasons;	169 MainThreadScrollingReasons m_lastMainThreadScrollingReasons;

169 };	170 };

170	171

171 } // namespace WebCore	172 } // namespace WebCore

172	173

173 #endif // ScrollingCoordinator_h	174 #endif // ScrollingCoordinator_h

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