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 KeyframeAnimation_h 30 #define KeyframeAnimation_h 31 32 #include "AnimationBase.h" 33 #include "Document.h" 34 #include "KeyframeList.h" 35 36 namespace WebCore { 37 38 class RenderStyle; 39 40 // A KeyframeAnimation tracks the state of an explicit animation 41 // for a single RenderObject. 42 class KeyframeAnimation : public AnimationBase { 43 public: create(const Animation * animation,RenderObject * renderer,int index,CompositeAnimation * compositeAnimation,RenderStyle * unanimatedStyle)44 static PassRefPtr<KeyframeAnimation> create(const Animation* animation, RenderObject* renderer, int index, CompositeAnimation* compositeAnimation, RenderStyle* unanimatedStyle) 45 { 46 return adoptRef(new KeyframeAnimation(animation, renderer, index, compositeAnimation, unanimatedStyle)); 47 }; 48 49 virtual void animate(CompositeAnimation*, RenderObject*, const RenderStyle* currentStyle, RenderStyle* targetStyle, RefPtr<RenderStyle>& animatedStyle); 50 virtual void getAnimatedStyle(RefPtr<RenderStyle>& animatedStyle); 51 name()52 const AtomicString& name() const { return m_keyframes.animationName(); } index()53 int index() const { return m_index; } setIndex(int i)54 void setIndex(int i) { m_index = i; } 55 56 bool hasAnimationForProperty(int property) const; 57 setUnanimatedStyle(PassRefPtr<RenderStyle> style)58 void setUnanimatedStyle(PassRefPtr<RenderStyle> style) { m_unanimatedStyle = style; } unanimatedStyle()59 RenderStyle* unanimatedStyle() const { return m_unanimatedStyle.get(); } 60 61 virtual double timeToNextService(); 62 63 protected: 64 virtual void onAnimationStart(double elapsedTime); 65 virtual void onAnimationIteration(double elapsedTime); 66 virtual void onAnimationEnd(double elapsedTime); 67 virtual bool startAnimation(double timeOffset); 68 virtual void pauseAnimation(double timeOffset); 69 virtual void endAnimation(); 70 71 virtual void overrideAnimations(); 72 virtual void resumeOverriddenAnimations(); 73 74 bool shouldSendEventForListener(Document::ListenerType inListenerType) const; 75 bool sendAnimationEvent(const AtomicString&, double elapsedTime); 76 77 virtual bool affectsProperty(int) const; 78 79 void validateTransformFunctionList(); 80 81 private: 82 KeyframeAnimation(const Animation* animation, RenderObject*, int index, CompositeAnimation*, RenderStyle* unanimatedStyle); 83 virtual ~KeyframeAnimation(); 84 85 // Get the styles for the given property surrounding the current animation time and the progress between them. 86 void fetchIntervalEndpointsForProperty(int property, const RenderStyle*& fromStyle, const RenderStyle*& toStyle, double& progress) const; 87 88 // The keyframes that we are blending. 89 KeyframeList m_keyframes; 90 91 // The order in which this animation appears in the animation-name style. 92 int m_index; 93 bool m_startEventDispatched; 94 95 // The style just before we started animation 96 RefPtr<RenderStyle> m_unanimatedStyle; 97 }; 98 99 } // namespace WebCore 100 101 #endif // KeyframeAnimation_h 102