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 CompositorAnimations_h
32#define CompositorAnimations_h
33
34#include "core/animation/AnimationEffect.h"
35#include "core/animation/Timing.h"
36#include "platform/animation/TimingFunction.h"
37#include "wtf/Vector.h"
38
39namespace blink {
40
41class Element;
42class FloatBox;
43
44class CompositorAnimations {
45public:
46    static CompositorAnimations* instance() { return instance(0); }
47    static void setInstanceForTesting(CompositorAnimations* newInstance) { instance(newInstance); }
48
49    virtual bool isCandidateForAnimationOnCompositor(const Timing&, const AnimationEffect&, double playerPlaybackRate);
50    virtual bool canStartAnimationOnCompositor(const Element&);
51    // FIXME: This should return void. We should know ahead of time whether these animations can be started.
52    virtual bool startAnimationOnCompositor(const Element&, double startTime, double timeOffset, const Timing&, const AnimationEffect&, Vector<int>& startedAnimationIds, double playerPlaybackRate);
53    virtual void cancelAnimationOnCompositor(const Element&, int id);
54    virtual void pauseAnimationForTestingOnCompositor(const Element&, int id, double pauseTime);
55
56    virtual bool getAnimatedBoundingBox(FloatBox&, const AnimationEffect&, double minValue, double maxValue) const;
57protected:
58    CompositorAnimations() { }
59
60private:
61    static CompositorAnimations* instance(CompositorAnimations* newInstance)
62    {
63        static CompositorAnimations* instance = new CompositorAnimations();
64        if (newInstance) {
65            instance = newInstance;
66        }
67        return instance;
68    }
69};
70
71} // namespace blink
72
73#endif
74