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 #include "wtf/OwnPtr.h" 35 36 namespace WebCore { 37 38 class AnimationBase; 39 class AnimationControllerPrivate; 40 class Document; 41 class Element; 42 class Frame; 43 class Node; 44 class RenderObject; 45 class RenderStyle; 46 47 class AnimationController { 48 public: 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 void pauseAnimationsForTesting(double t); 60 unsigned numberOfActiveAnimations(Document*) const; // To be used only for testing 61 62 bool isRunningAnimationOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow = true) const; 63 bool isRunningAcceleratableAnimationOnRenderer(RenderObject*) const; 64 bool isRunningAcceleratedAnimationOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow = true) const; 65 66 void serviceAnimations(); 67 68 void beginAnimationUpdate(); 69 void endAnimationUpdate(); 70 71 static bool supportsAcceleratedAnimationOfProperty(CSSPropertyID); 72 73 private: 74 OwnPtr<AnimationControllerPrivate> m_data; 75 int m_beginAnimationUpdateCount; 76 }; 77 78 class AnimationUpdateBlock { 79 public: AnimationUpdateBlock(AnimationController * animationController)80 explicit AnimationUpdateBlock(AnimationController* animationController) 81 : m_animationController(animationController) 82 { 83 if (m_animationController) 84 m_animationController->beginAnimationUpdate(); 85 } 86 AnimationUpdateBlock(AnimationController & animationController)87 explicit AnimationUpdateBlock(AnimationController& animationController) 88 : m_animationController(&animationController) 89 { 90 m_animationController->beginAnimationUpdate(); 91 } 92 ~AnimationUpdateBlock()93 ~AnimationUpdateBlock() 94 { 95 if (m_animationController) 96 m_animationController->endAnimationUpdate(); 97 } 98 99 AnimationController* m_animationController; 100 }; 101 102 } // namespace WebCore 103 104 #endif // AnimationController_h 105