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1 /* | |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #ifndef SKY_ENGINE_CORE_ANIMATION_COMPOSITORPENDINGANIMATIONS_H_ | |
32 #define SKY_ENGINE_CORE_ANIMATION_COMPOSITORPENDINGANIMATIONS_H_ | |
33 | |
34 #include "sky/engine/core/animation/AnimationPlayer.h" | |
35 #include "sky/engine/platform/Timer.h" | |
36 #include "sky/engine/platform/heap/Handle.h" | |
37 #include "sky/engine/wtf/Vector.h" | |
38 | |
39 namespace blink { | |
40 | |
41 // Manages the starting of pending animations on the compositor following a | |
42 // compositing update. | |
43 // For CSS Animations, used to synchronize the start of main-thread animations | |
44 // with compositor animations when both classes of CSS Animations are triggered | |
45 // by the same recalc | |
46 class CompositorPendingAnimations final { | |
47 DISALLOW_ALLOCATION(); | |
48 public: | |
49 | |
50 CompositorPendingAnimations() | |
51 : m_timer(this, &CompositorPendingAnimations::timerFired) | |
52 { } | |
53 | |
54 void add(AnimationPlayer*); | |
55 // Returns whether we are waiting for an animation to start and should | |
56 // service again on the next frame. | |
57 bool update(bool startOnCompositor = true); | |
58 void notifyCompositorAnimationStarted(double monotonicAnimationStartTime); | |
59 | |
60 private: | |
61 void timerFired(Timer<CompositorPendingAnimations>*) { update(false); } | |
62 | |
63 Vector<RefPtr<AnimationPlayer> > m_pending; | |
64 Vector<RefPtr<AnimationPlayer> > m_waitingForCompositorAnimationStart; | |
65 Timer<CompositorPendingAnimations> m_timer; | |
66 }; | |
67 | |
68 } // namespace blink | |
69 | |
70 #endif // SKY_ENGINE_CORE_ANIMATION_COMPOSITORPENDINGANIMATIONS_H_ | |
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