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1 /* | 1 /* |
2 * Copyright (c) 2010, Google Inc. All rights reserved. | 2 * Copyright (c) 2010, Google 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 are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef ScrollAnimatorBase_h | 31 #ifndef ScrollAnimatorBase_h |
32 #define ScrollAnimatorBase_h | 32 #define ScrollAnimatorBase_h |
33 | 33 |
34 #include "platform/PlatformExport.h" | 34 #include "platform/PlatformExport.h" |
35 #include "platform/PlatformWheelEvent.h" | 35 #include "platform/PlatformWheelEvent.h" |
36 #include "platform/geometry/FloatSize.h" | 36 #include "platform/geometry/FloatSize.h" |
37 #include "platform/heap/Handle.h" | 37 #include "platform/heap/Handle.h" |
| 38 #include "platform/scroll/ScrollAnimatorCompositorCoordinator.h" |
38 #include "platform/scroll/ScrollTypes.h" | 39 #include "platform/scroll/ScrollTypes.h" |
39 #include "wtf/Forward.h" | 40 #include "wtf/Forward.h" |
40 | 41 |
41 namespace blink { | 42 namespace blink { |
42 | 43 |
43 class FloatPoint; | 44 class FloatPoint; |
44 class ScrollableArea; | 45 class ScrollableArea; |
45 class Scrollbar; | 46 class Scrollbar; |
| 47 class WebCompositorAnimationTimeline; |
46 | 48 |
47 class PLATFORM_EXPORT ScrollAnimatorBase : public NoBaseWillBeGarbageCollectedFi
nalized<ScrollAnimatorBase> { | 49 class PLATFORM_EXPORT ScrollAnimatorBase : public ScrollAnimatorCompositorCoordi
nator { |
48 public: | 50 public: |
49 static PassOwnPtrWillBeRawPtr<ScrollAnimatorBase> create(ScrollableArea*); | 51 static PassOwnPtrWillBeRawPtr<ScrollAnimatorBase> create(ScrollableArea*); |
50 | 52 |
51 virtual ~ScrollAnimatorBase(); | 53 virtual ~ScrollAnimatorBase(); |
52 | 54 |
53 virtual void dispose() { } | 55 virtual void dispose() { } |
54 | 56 |
55 // Computes a scroll destination for the given parameters. The returned | 57 // Computes a scroll destination for the given parameters. The returned |
56 // ScrollResultOneDimensional will have didScroll set to false if already at | 58 // ScrollResultOneDimensional will have didScroll set to false if already at |
57 // the destination. Otherwise, starts scrolling towards the destination and | 59 // the destination. Otherwise, starts scrolling towards the destination and |
58 // didScroll is true. Scrolling may be immediate or animated. The base | 60 // didScroll is true. Scrolling may be immediate or animated. The base |
59 // class implementation always scrolls immediately, never animates. | 61 // class implementation always scrolls immediately, never animates. |
60 virtual ScrollResultOneDimensional userScroll(ScrollbarOrientation, ScrollGr
anularity, float step, float delta); | 62 virtual ScrollResultOneDimensional userScroll(ScrollbarOrientation, ScrollGr
anularity, float step, float delta); |
61 | 63 |
62 virtual void scrollToOffsetWithoutAnimation(const FloatPoint&); | 64 virtual void scrollToOffsetWithoutAnimation(const FloatPoint&); |
63 | 65 |
64 ScrollableArea* scrollableArea() const { return m_scrollableArea; } | |
65 | |
66 virtual void setIsActive() { } | 66 virtual void setIsActive() { } |
67 | 67 |
68 #if OS(MACOSX) | 68 #if OS(MACOSX) |
69 virtual void handleWheelEventPhase(PlatformWheelEventPhase) { } | 69 virtual void handleWheelEventPhase(PlatformWheelEventPhase) { } |
70 #endif | 70 #endif |
71 | 71 |
72 void setCurrentPosition(const FloatPoint&); | 72 void setCurrentPosition(const FloatPoint&); |
73 FloatPoint currentPosition() const; | 73 FloatPoint currentPosition() const; |
74 | 74 |
75 // Returns how much of pixelDelta will be used by the underlying scrollable | 75 // Returns how much of pixelDelta will be used by the underlying scrollable |
76 // area. | 76 // area. |
77 virtual float computeDeltaToConsume(ScrollbarOrientation, float pixelDelta)
const; | 77 virtual float computeDeltaToConsume(ScrollbarOrientation, float pixelDelta)
const; |
78 | 78 |
79 virtual void cancelAnimations() { } | 79 |
80 virtual void serviceScrollAnimations() { } | 80 // ScrollAnimatorCompositorCoordinator implementation. |
81 virtual bool hasRunningAnimation() const { return false; } | 81 ScrollableArea* scrollableArea() const override { return m_scrollableArea; } |
| 82 void tickAnimation(double monotonicTime) override { }; |
| 83 void cancelAnimation() override { } |
| 84 void updateCompositorAnimations() override { }; |
| 85 void notifyCompositorAnimationFinished(int groupId) override { }; |
| 86 void layerForCompositedScrollingDidChange(WebCompositorAnimationTimeline*) o
verride { }; |
82 | 87 |
83 virtual void contentAreaWillPaint() const { } | 88 virtual void contentAreaWillPaint() const { } |
84 virtual void mouseEnteredContentArea() const { } | 89 virtual void mouseEnteredContentArea() const { } |
85 virtual void mouseExitedContentArea() const { } | 90 virtual void mouseExitedContentArea() const { } |
86 virtual void mouseMovedInContentArea() const { } | 91 virtual void mouseMovedInContentArea() const { } |
87 virtual void mouseEnteredScrollbar(Scrollbar&) const { } | 92 virtual void mouseEnteredScrollbar(Scrollbar&) const { } |
88 virtual void mouseExitedScrollbar(Scrollbar&) const { } | 93 virtual void mouseExitedScrollbar(Scrollbar&) const { } |
89 virtual void willStartLiveResize() { } | 94 virtual void willStartLiveResize() { } |
90 virtual void updateAfterLayout() { } | 95 virtual void updateAfterLayout() { } |
91 virtual void contentsResized() const { } | 96 virtual void contentsResized() const { } |
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116 float clampScrollPosition(ScrollbarOrientation, float) const; | 121 float clampScrollPosition(ScrollbarOrientation, float) const; |
117 | 122 |
118 RawPtrWillBeMember<ScrollableArea> m_scrollableArea; | 123 RawPtrWillBeMember<ScrollableArea> m_scrollableArea; |
119 float m_currentPosX; // We avoid using a FloatPoint in order to reduce | 124 float m_currentPosX; // We avoid using a FloatPoint in order to reduce |
120 float m_currentPosY; // subclass code complexity. | 125 float m_currentPosY; // subclass code complexity. |
121 }; | 126 }; |
122 | 127 |
123 } // namespace blink | 128 } // namespace blink |
124 | 129 |
125 #endif // ScrollAnimatorBase_h | 130 #endif // ScrollAnimatorBase_h |
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