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Side by Side Diff: Source/core/animation/CompositorAnimations.h

Issue 178263006: Handle direction control in compositor Animations (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: new patch: add a reference to chromium issue Created 6 years, 9 months ago
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1 /* 1 /*
2 * Copyright (C) 2013 Google Inc. All rights reserved. 2 * Copyright (C) 2013 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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33 33
34 #include "core/animation/AnimationEffect.h" 34 #include "core/animation/AnimationEffect.h"
35 #include "core/animation/Timing.h" 35 #include "core/animation/Timing.h"
36 #include "platform/animation/TimingFunction.h" 36 #include "platform/animation/TimingFunction.h"
37 #include "wtf/Vector.h" 37 #include "wtf/Vector.h"
38 38
39 namespace WebCore { 39 namespace WebCore {
40 40
41 class Element; 41 class Element;
42 42
43 // Given an input timing function between keyframe at 0 and keyframe at 1.0, we
44 // need a timing function such that the behavior with the keyframes swapped is
45 // equivalent to reversing time with the input timing function and keyframes.
46 // This means flipping the timing function about x=0.5 and about y=0.5.
47 // FIXME: Remove once the Compositor natively understands reversing time.
48 class CompositorAnimationsTimingFunctionReverser {
49 public:
50 static PassRefPtr<TimingFunction> reverse(const LinearTimingFunction* timefu nc);
51 static PassRefPtr<TimingFunction> reverse(const CubicBezierTimingFunction* t imefunc);
52 static PassRefPtr<TimingFunction> reverse(const ChainedTimingFunction* timef unc);
53 static PassRefPtr<TimingFunction> reverse(const TimingFunction* timefunc);
54 };
55
56 class CompositorAnimations { 43 class CompositorAnimations {
57 public: 44 public:
58 static CompositorAnimations* instance() { return instance(0); } 45 static CompositorAnimations* instance() { return instance(0); }
59 static void setInstanceForTesting(CompositorAnimations* newInstance) { insta nce(newInstance); } 46 static void setInstanceForTesting(CompositorAnimations* newInstance) { insta nce(newInstance); }
60 47
61 virtual bool isCandidateForAnimationOnCompositor(const Timing&, const Animat ionEffect&); 48 virtual bool isCandidateForAnimationOnCompositor(const Timing&, const Animat ionEffect&);
62 virtual bool canStartAnimationOnCompositor(const Element&); 49 virtual bool canStartAnimationOnCompositor(const Element&);
63 // FIXME: This should return void. We should know ahead of time whether thes e animations can be started. 50 // FIXME: This should return void. We should know ahead of time whether thes e animations can be started.
64 virtual bool startAnimationOnCompositor(const Element&, const Timing&, const AnimationEffect&, Vector<int>& startedAnimationIds); 51 virtual bool startAnimationOnCompositor(const Element&, const Timing&, const AnimationEffect&, Vector<int>& startedAnimationIds);
65 virtual void cancelAnimationOnCompositor(const Element&, int id); 52 virtual void cancelAnimationOnCompositor(const Element&, int id);
66 virtual void pauseAnimationForTestingOnCompositor(const Element&, int id, do uble pauseTime); 53 virtual void pauseAnimationForTestingOnCompositor(const Element&, int id, do uble pauseTime);
67 54
68 protected: 55 protected:
69 CompositorAnimations() { } 56 CompositorAnimations() { }
70 57
71 private: 58 private:
72 static CompositorAnimations* instance(CompositorAnimations* newInstance) 59 static CompositorAnimations* instance(CompositorAnimations* newInstance)
73 { 60 {
74 static CompositorAnimations* instance = new CompositorAnimations(); 61 static CompositorAnimations* instance = new CompositorAnimations();
75 if (newInstance) { 62 if (newInstance) {
76 instance = newInstance; 63 instance = newInstance;
77 } 64 }
78 return instance; 65 return instance;
79 } 66 }
80 }; 67 };
81 68
82 } // namespace WebCore 69 } // namespace WebCore
83 70
84 #endif 71 #endif
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