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 

    35 namespace WebCore {

    36 

    37 class AnimationBase;

    38 class AnimationControllerPrivate;

    39 class AtomicString;

    40 class Document;

    41 class Element;

    42 class Frame;

    43 class Node;

    44 class RenderObject;

    45 class RenderStyle;

    46 class String;

    47 

    48 class AnimationController {

    49 public:

    50     AnimationController(Frame*);

    51     ~AnimationController();

    52 

    53     void cancelAnimations(RenderObject*);

    54     PassRefPtr<RenderStyle> updateAnimations(RenderObject*, RenderStyle* newStyle);

    55     PassRefPtr<RenderStyle> getAnimatedStyleForRenderer(RenderObject*);

    56 

    57     // This is called when an accelerated animation or transition has actually started to animate.

    58     void notifyAnimationStarted(RenderObject*, double startTime);

    59 

    60     bool pauseAnimationAtTime(RenderObject*, const String& name, double t); // To be used only for testing

    61     bool pauseTransitionAtTime(RenderObject*, const String& property, double t); // To be used only for testing

    62     unsigned numberOfActiveAnimations() const; // To be used only for testing

    63     

    64     bool isRunningAnimationOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow = true) const;

    65     bool isRunningAcceleratedAnimationOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow = true) const;

    66 

    67     void suspendAnimations(Document*);

    68     void resumeAnimations(Document*);

    69 

    70     void beginAnimationUpdate();

    71     void endAnimationUpdate();

    72     

    73     static bool supportsAcceleratedAnimationOfProperty(CSSPropertyID);

    74 

    75 private:

    76     AnimationControllerPrivate* m_data;

    77 };

    78 

    79 } // namespace WebCore

    80 

    81 #endif // AnimationController_h