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, 4 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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91 bool shouldUpdateScrollLayerPositionOnMainThread() const { return mainThread ScrollingReasons() != 0; }	91 bool shouldUpdateScrollLayerPositionOnMainThread() const { return mainThread ScrollingReasons() != 0; }

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	100

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

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

	103

101 static String mainThreadScrollingReasonsAsText(MainThreadScrollingReasons);	104 static String mainThreadScrollingReasonsAsText(MainThreadScrollingReasons);

102 String mainThreadScrollingReasonsAsText() const;	105 String mainThreadScrollingReasonsAsText() const;

103 Region computeShouldHandleScrollGestureOnMainThreadRegion(const Frame*, cons t IntPoint& frameLocation) const;	106 Region computeShouldHandleScrollGestureOnMainThreadRegion(const Frame*, cons t IntPoint& frameLocation) const;

104	107

105 class TouchEventTargetRectsObserver {	108 class TouchEventTargetRectsObserver {

106 public:	109 public:

107 virtual void touchEventTargetRectsChanged(const LayerHitTestRects&) = 0;	110 virtual void touchEventTargetRectsChanged(const LayerHitTestRects&) = 0;

108 };	111 };

109	112

110 void addTouchEventTargetRectsObserver(TouchEventTargetRectsObserver*);	113 void addTouchEventTargetRectsObserver(TouchEventTargetRectsObserver*);

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147 typedef HashMap<ScrollableArea*, OwnPtr<WebKit::WebScrollbarLayer> > Scrollb arMap;	150 typedef HashMap<ScrollableArea*, OwnPtr<WebKit::WebScrollbarLayer> > Scrollb arMap;

148 ScrollbarMap m_horizontalScrollbars;	151 ScrollbarMap m_horizontalScrollbars;

149 ScrollbarMap m_verticalScrollbars;	152 ScrollbarMap m_verticalScrollbars;

150	153

151 HashSet<TouchEventTargetRectsObserver*> m_touchEventTargetRectsObservers;	154 HashSet<TouchEventTargetRectsObserver*> m_touchEventTargetRectsObservers;

152 };	155 };

153	156

154 } // namespace WebCore	157 } // namespace WebCore

155	158

156 #endif // ScrollingCoordinator_h	159 #endif // ScrollingCoordinator_h

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