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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 Animation_h
32 #define Animation_h
33 
34 #include "core/animation/AnimationEffect.h"
35 #include "core/animation/AnimationNode.h"
36 #include "core/animation/EffectInput.h"
37 #include "core/animation/TimingInput.h"
38 #include "platform/heap/Handle.h"
39 #include "wtf/RefPtr.h"
40 
41 namespace blink {
42 
43 class Dictionary;
44 class Element;
45 class ExceptionState;
46 class SampledEffect;
47 
48 class Animation FINAL : public AnimationNode {
49     DEFINE_WRAPPERTYPEINFO();
50 public:
51     enum Priority { DefaultPriority, TransitionPriority };
52 
53     static PassRefPtrWillBeRawPtr<Animation> create(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, const Timing&, Priority = DefaultPriority, PassOwnPtrWillBeRawPtr<EventDelegate> = nullptr);
54     // Web Animations API Bindings constructors.
55     static PassRefPtrWillBeRawPtr<Animation> create(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, const Dictionary& timingInputDictionary);
56     static PassRefPtrWillBeRawPtr<Animation> create(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, double duration);
57     static PassRefPtrWillBeRawPtr<Animation> create(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>);
58     static PassRefPtrWillBeRawPtr<Animation> create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, const Dictionary& timingInputDictionary, ExceptionState&);
59     static PassRefPtrWillBeRawPtr<Animation> create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, double duration, ExceptionState&);
60     static PassRefPtrWillBeRawPtr<Animation> create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, ExceptionState&);
61 
62     virtual ~Animation();
63 
isAnimation()64     virtual bool isAnimation() const OVERRIDE { return true; }
65 
66     bool affects(CSSPropertyID) const;
effect()67     const AnimationEffect* effect() const { return m_effect.get(); }
effect()68     AnimationEffect* effect() { return m_effect.get(); }
priority()69     Priority priority() const { return m_priority; }
target()70     Element* target() { return m_target; }
71 
72     void notifySampledEffectRemovedFromAnimationStack();
73 #if !ENABLE(OILPAN)
74     void notifyElementDestroyed();
75 #endif
76 
77     bool isCandidateForAnimationOnCompositor(double playerPlaybackRate) const;
78     // Must only be called once.
79     bool maybeStartAnimationOnCompositor(double startTime, double timeOffset);
80     bool maybeStartAnimationOnCompositor(double startTime, double timeOffset, double playerPlaybackRate);
81     bool hasActiveAnimationsOnCompositor() const;
82     bool hasActiveAnimationsOnCompositor(CSSPropertyID) const;
83     void cancelAnimationOnCompositor();
84     void pauseAnimationForTestingOnCompositor(double pauseTime);
85 
86     virtual void trace(Visitor*);
87 
88 protected:
89     void applyEffects();
90     void clearEffects();
91     virtual void updateChildrenAndEffects() const OVERRIDE;
92     virtual void attach(AnimationPlayer*) OVERRIDE;
93     virtual void detach() OVERRIDE;
94     virtual void specifiedTimingChanged() OVERRIDE;
95     virtual double calculateTimeToEffectChange(bool forwards, double inheritedTime, double timeToNextIteration) const OVERRIDE;
96 
97 private:
98     Animation(Element*, PassRefPtrWillBeRawPtr<AnimationEffect>, const Timing&, Priority, PassOwnPtrWillBeRawPtr<EventDelegate>);
99 
100     RawPtrWillBeMember<Element> m_target;
101     RefPtrWillBeMember<AnimationEffect> m_effect;
102     RawPtrWillBeMember<SampledEffect> m_sampledEffect;
103 
104     Priority m_priority;
105 
106     Vector<int> m_compositorAnimationIds;
107 
108     friend class AnimationAnimationV8Test;
109 };
110 
111 DEFINE_TYPE_CASTS(Animation, AnimationNode, animationNode, animationNode->isAnimation(), animationNode.isAnimation());
112 
113 } // namespace blink
114 
115 #endif // Animation_h
116