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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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