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      1 /*
      2  * Copyright (C) 2009 Apple 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
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef AnimationControllerPrivate_h
     30 #define AnimationControllerPrivate_h
     31 
     32 #include "AtomicString.h"
     33 #include "CSSPropertyNames.h"
     34 #include "PlatformString.h"
     35 #include "Timer.h"
     36 #include <wtf/HashMap.h>
     37 #include <wtf/PassRefPtr.h>
     38 #include <wtf/RefPtr.h>
     39 #include <wtf/Vector.h>
     40 
     41 namespace WebCore {
     42 
     43 class AnimationBase;
     44 class CompositeAnimation;
     45 class Document;
     46 class Element;
     47 class Frame;
     48 class Node;
     49 class RenderObject;
     50 class RenderStyle;
     51 
     52 class AnimationControllerPrivate : public Noncopyable {
     53 public:
     54     AnimationControllerPrivate(Frame*);
     55     ~AnimationControllerPrivate();
     56 
     57     PassRefPtr<CompositeAnimation> accessCompositeAnimation(RenderObject*);
     58     bool clear(RenderObject*);
     59 
     60     void animationTimerFired(Timer<AnimationControllerPrivate>*);
     61     void updateAnimationTimer(bool callSetChanged = false);
     62 
     63     void updateStyleIfNeededDispatcherFired(Timer<AnimationControllerPrivate>*);
     64     void startUpdateStyleIfNeededDispatcher();
     65     void addEventToDispatch(PassRefPtr<Element> element, const AtomicString& eventType, const String& name, double elapsedTime);
     66     void addNodeChangeToDispatch(PassRefPtr<Node>);
     67 
     68     bool hasAnimations() const { return !m_compositeAnimations.isEmpty(); }
     69 
     70     void suspendAnimations(Document*);
     71     void resumeAnimations(Document*);
     72 
     73     bool isAnimatingPropertyOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow) const;
     74 
     75     bool pauseAnimationAtTime(RenderObject*, const String& name, double t);
     76     bool pauseTransitionAtTime(RenderObject*, const String& property, double t);
     77     unsigned numberOfActiveAnimations() const;
     78 
     79     PassRefPtr<RenderStyle> getAnimatedStyleForRenderer(RenderObject* renderer);
     80 
     81     double beginAnimationUpdateTime();
     82     void setBeginAnimationUpdateTime(double t) { m_beginAnimationUpdateTime = t; }
     83     void endAnimationUpdate();
     84     void receivedStartTimeResponse(double);
     85 
     86     void addToStyleAvailableWaitList(AnimationBase*);
     87     void removeFromStyleAvailableWaitList(AnimationBase*);
     88 
     89     void addToStartTimeResponseWaitList(AnimationBase*, bool willGetResponse);
     90     void removeFromStartTimeResponseWaitList(AnimationBase*);
     91     void startTimeResponse(double t);
     92 
     93 private:
     94     void styleAvailable();
     95 
     96     typedef HashMap<RenderObject*, RefPtr<CompositeAnimation> > RenderObjectAnimationMap;
     97 
     98     RenderObjectAnimationMap m_compositeAnimations;
     99     Timer<AnimationControllerPrivate> m_animationTimer;
    100     Timer<AnimationControllerPrivate> m_updateStyleIfNeededDispatcher;
    101     Frame* m_frame;
    102 
    103     class EventToDispatch {
    104     public:
    105         RefPtr<Element> element;
    106         AtomicString eventType;
    107         String name;
    108         double elapsedTime;
    109     };
    110 
    111     Vector<EventToDispatch> m_eventsToDispatch;
    112     Vector<RefPtr<Node> > m_nodeChangesToDispatch;
    113 
    114     double m_beginAnimationUpdateTime;
    115     AnimationBase* m_styleAvailableWaiters;
    116     AnimationBase* m_lastStyleAvailableWaiter;
    117 
    118     AnimationBase* m_responseWaiters;
    119     AnimationBase* m_lastResponseWaiter;
    120     bool m_waitingForResponse;
    121 };
    122 
    123 } // namespace WebCore
    124 
    125 #endif // AnimationControllerPrivate_h
    126