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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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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 blink { | 39 namespace blink { |
40 | 40 |
41 class Element; | 41 class Element; |
42 class FloatBox; | 42 class FloatBox; |
43 | 43 |
44 // Given an input timing function between keyframe at 0 and keyframe at 1.0, we | |
45 // need a timing function such that the behavior with the keyframes swapped is | |
46 // equivalent to reversing time with the input timing function and keyframes. | |
47 // This means flipping the timing function about x=0.5 and about y=0.5. | |
48 // FIXME: Remove once the Compositor natively understands reversing time. | |
49 class CompositorAnimationsTimingFunctionReverser { | |
50 public: | |
51 static PassRefPtr<TimingFunction> reverse(const LinearTimingFunction& timefu
nc); | |
52 static PassRefPtr<TimingFunction> reverse(const CubicBezierTimingFunction& t
imefunc); | |
53 static PassRefPtr<TimingFunction> reverse(const TimingFunction& timefunc); | |
54 }; | |
55 | |
56 class CompositorAnimations { | 44 class CompositorAnimations { |
57 public: | 45 public: |
58 static CompositorAnimations* instance() { return instance(0); } | 46 static CompositorAnimations* instance() { return instance(0); } |
59 static void setInstanceForTesting(CompositorAnimations* newInstance) { insta
nce(newInstance); } | 47 static void setInstanceForTesting(CompositorAnimations* newInstance) { insta
nce(newInstance); } |
60 | 48 |
61 virtual bool isCandidateForAnimationOnCompositor(const Timing&, const Animat
ionEffect&); | 49 virtual bool isCandidateForAnimationOnCompositor(const Timing&, const Animat
ionEffect&); |
62 virtual bool canStartAnimationOnCompositor(const Element&); | 50 virtual bool canStartAnimationOnCompositor(const Element&); |
63 // FIXME: This should return void. We should know ahead of time whether thes
e animations can be started. | 51 // FIXME: This should return void. We should know ahead of time whether thes
e animations can be started. |
64 virtual bool startAnimationOnCompositor(const Element&, double startTime, do
uble timeOffset, const Timing&, const AnimationEffect&, Vector<int>& startedAnim
ationIds); | 52 virtual bool startAnimationOnCompositor(const Element&, double startTime, do
uble timeOffset, const Timing&, const AnimationEffect&, Vector<int>& startedAnim
ationIds); |
65 virtual void cancelAnimationOnCompositor(const Element&, int id); | 53 virtual void cancelAnimationOnCompositor(const Element&, int id); |
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76 if (newInstance) { | 64 if (newInstance) { |
77 instance = newInstance; | 65 instance = newInstance; |
78 } | 66 } |
79 return instance; | 67 return instance; |
80 } | 68 } |
81 }; | 69 }; |
82 | 70 |
83 } // namespace blink | 71 } // namespace blink |
84 | 72 |
85 #endif | 73 #endif |
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