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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 |
| (...skipping 11 matching lines...) Expand all Loading... |
| 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| 23 * THE POSSIBILITY OF SUCH DAMAGE. | 23 * THE POSSIBILITY OF SUCH DAMAGE. |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 #ifndef ScrollingCoordinator_h | 26 #ifndef ScrollingCoordinator_h |
| 27 #define ScrollingCoordinator_h | 27 #define ScrollingCoordinator_h |
| 28 | 28 |
| 29 #include "IntRect.h" | 29 #include "IntRect.h" |
| 30 #include "LayoutRect.h" | 30 #include "LayoutRect.h" |
| 31 #include "PlatformWheelEvent.h" | 31 #include "PlatformWheelEvent.h" |
| 32 #include "RenderObject.h" | |
| 33 #include "ScrollTypes.h" | 32 #include "ScrollTypes.h" |
| 34 #include "Timer.h" | 33 #include "Timer.h" |
| 35 #include <wtf/Forward.h> | 34 #include <wtf/Forward.h> |
| 36 | 35 |
| 37 #if ENABLE(THREADED_SCROLLING) | 36 #if ENABLE(THREADED_SCROLLING) |
| 38 #include <wtf/HashMap.h> | 37 #include <wtf/HashMap.h> |
| 39 #include <wtf/ThreadSafeRefCounted.h> | 38 #include <wtf/ThreadSafeRefCounted.h> |
| 40 #include <wtf/Threading.h> | 39 #include <wtf/Threading.h> |
| 41 #endif | 40 #endif |
| 42 | 41 |
| 43 #if PLATFORM(MAC) | 42 #if PLATFORM(MAC) |
| 44 #include <wtf/RetainPtr.h> | 43 #include <wtf/RetainPtr.h> |
| 45 #endif | 44 #endif |
| 46 | 45 |
| 47 namespace WebCore { | 46 namespace WebCore { |
| 48 | 47 |
| 49 typedef unsigned MainThreadScrollingReasons; | 48 typedef unsigned MainThreadScrollingReasons; |
| 50 typedef uint64_t ScrollingNodeID; | 49 typedef uint64_t ScrollingNodeID; |
| 51 | 50 |
| 52 enum ScrollingNodeType { ScrollingNode, FixedNode }; | 51 enum ScrollingNodeType { ScrollingNode, FixedNode }; |
| 53 | 52 |
| 54 class Document; | |
| 55 class Frame; | 53 class Frame; |
| 56 class FrameView; | 54 class FrameView; |
| 57 class GraphicsLayer; | 55 class GraphicsLayer; |
| 58 class Page; | 56 class Page; |
| 59 class Region; | 57 class Region; |
| 60 class ScrollableArea; | 58 class ScrollableArea; |
| 61 class ViewportConstraints; | 59 class ViewportConstraints; |
| 62 | 60 |
| 63 #if ENABLE(THREADED_SCROLLING) | 61 #if ENABLE(THREADED_SCROLLING) |
| 64 class ScrollingTree; | 62 class ScrollingTree; |
| (...skipping 79 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 144 MainThreadScrollingReasons mainThreadScrollingReasons() const; | 142 MainThreadScrollingReasons mainThreadScrollingReasons() const; |
| 145 bool shouldUpdateScrollLayerPositionOnMainThread() const { return mainThread
ScrollingReasons() != 0; } | 143 bool shouldUpdateScrollLayerPositionOnMainThread() const { return mainThread
ScrollingReasons() != 0; } |
| 146 | 144 |
| 147 // These virtual functions are currently unique to Chromium's WebLayer appro
ach. Their meaningful | 145 // These virtual functions are currently unique to Chromium's WebLayer appro
ach. Their meaningful |
| 148 // implementations are in ScrollingCoordinatorChromium. | 146 // implementations are in ScrollingCoordinatorChromium. |
| 149 virtual void frameViewHorizontalScrollbarLayerDidChange(FrameView*, Graphics
Layer*) { } | 147 virtual void frameViewHorizontalScrollbarLayerDidChange(FrameView*, Graphics
Layer*) { } |
| 150 virtual void frameViewVerticalScrollbarLayerDidChange(FrameView*, GraphicsLa
yer*) { } | 148 virtual void frameViewVerticalScrollbarLayerDidChange(FrameView*, GraphicsLa
yer*) { } |
| 151 virtual void scrollableAreaScrollLayerDidChange(ScrollableArea*, GraphicsLay
er*) { } | 149 virtual void scrollableAreaScrollLayerDidChange(ScrollableArea*, GraphicsLay
er*) { } |
| 152 virtual void setLayerIsContainerForFixedPositionLayers(GraphicsLayer*, bool)
{ } | 150 virtual void setLayerIsContainerForFixedPositionLayers(GraphicsLayer*, bool)
{ } |
| 153 virtual void setLayerIsFixedToContainerLayer(GraphicsLayer*, bool) { } | 151 virtual void setLayerIsFixedToContainerLayer(GraphicsLayer*, bool) { } |
| 154 virtual void touchEventTargetRectsDidChange(const Document*) { } | |
| 155 | |
| 156 #if ENABLE(TOUCH_EVENT_TRACKING) | |
| 157 void computeAbsoluteTouchEventTargetRects(const Document*, Vector<IntRect>&)
; | |
| 158 #endif | |
| 159 | 152 |
| 160 static String mainThreadScrollingReasonsAsText(MainThreadScrollingReasons); | 153 static String mainThreadScrollingReasonsAsText(MainThreadScrollingReasons); |
| 161 String mainThreadScrollingReasonsAsText() const; | 154 String mainThreadScrollingReasonsAsText() const; |
| 162 | 155 |
| 163 protected: | 156 protected: |
| 164 explicit ScrollingCoordinator(Page*); | 157 explicit ScrollingCoordinator(Page*); |
| 165 | 158 |
| 166 Region computeNonFastScrollableRegion(Frame*, const IntPoint& frameLocation)
; | 159 Region computeNonFastScrollableRegion(Frame*, const IntPoint& frameLocation)
; |
| 167 unsigned computeCurrentWheelEventHandlerCount(); | 160 unsigned computeCurrentWheelEventHandlerCount(); |
| 168 GraphicsLayer* scrollLayerForFrameView(FrameView*); | 161 GraphicsLayer* scrollLayerForFrameView(FrameView*); |
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| 182 IntPoint m_scheduledUpdateScrollPosition; | 175 IntPoint m_scheduledUpdateScrollPosition; |
| 183 bool m_scheduledUpdateIsProgrammaticScroll; | 176 bool m_scheduledUpdateIsProgrammaticScroll; |
| 184 SetOrSyncScrollingLayerPosition m_scheduledScrollingLayerPositionAction; | 177 SetOrSyncScrollingLayerPosition m_scheduledScrollingLayerPositionAction; |
| 185 | 178 |
| 186 bool m_forceMainThreadScrollLayerPositionUpdates; | 179 bool m_forceMainThreadScrollLayerPositionUpdates; |
| 187 }; | 180 }; |
| 188 | 181 |
| 189 } // namespace WebCore | 182 } // namespace WebCore |
| 190 | 183 |
| 191 #endif // ScrollingCoordinator_h | 184 #endif // ScrollingCoordinator_h |
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