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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 
hasAnimations()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();
setBeginAnimationUpdateTime(double t)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