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