1/*
2 * Copyright (C) 2007 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 AnimationController_h
30#define AnimationController_h
31
32#include "CSSPropertyNames.h"
33#include <wtf/Forward.h>
34
35namespace WebCore {
36
37class AnimationBase;
38class AnimationControllerPrivate;
39class Document;
40class Element;
41class Frame;
42class Node;
43class RenderObject;
44class RenderStyle;
45class WebKitAnimationList;
46
47class AnimationController {
48public:
49    AnimationController(Frame*);
50    ~AnimationController();
51
52    void cancelAnimations(RenderObject*);
53    PassRefPtr<RenderStyle> updateAnimations(RenderObject*, RenderStyle* newStyle);
54    PassRefPtr<RenderStyle> getAnimatedStyleForRenderer(RenderObject*);
55
56    // This is called when an accelerated animation or transition has actually started to animate.
57    void notifyAnimationStarted(RenderObject*, double startTime);
58
59    bool pauseAnimationAtTime(RenderObject*, const String& name, double t); // To be used only for testing
60    bool pauseTransitionAtTime(RenderObject*, const String& property, double t); // To be used only for testing
61    unsigned numberOfActiveAnimations() const; // To be used only for testing
62
63    bool isRunningAnimationOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow = true) const;
64    bool isRunningAcceleratedAnimationOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow = true) const;
65
66    void suspendAnimations();
67    void resumeAnimations();
68
69    void suspendAnimationsForDocument(Document*);
70    void resumeAnimationsForDocument(Document*);
71
72    void beginAnimationUpdate();
73    void endAnimationUpdate();
74
75    static bool supportsAcceleratedAnimationOfProperty(CSSPropertyID);
76
77    PassRefPtr<WebKitAnimationList> animationsForRenderer(RenderObject*) const;
78
79private:
80    AnimationControllerPrivate* m_data;
81};
82
83} // namespace WebCore
84
85#endif // AnimationController_h
86