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 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 36namespace WebCore { 37 38class RenderStyle; 39 40// A KeyframeAnimation tracks the state of an explicit animation for a single RenderElement. 41class KeyframeAnimation final : public AnimationBase { 42public: 43 static RefPtr<KeyframeAnimation> create(const Animation& animation, RenderElement* renderer, int index, CompositeAnimation* compositeAnimation, RenderStyle* unanimatedStyle) 44 { 45 return adoptRef(new KeyframeAnimation(animation, renderer, index, compositeAnimation, unanimatedStyle)); 46 } 47 48 virtual void animate(CompositeAnimation*, RenderElement*, const RenderStyle* currentStyle, RenderStyle* targetStyle, RefPtr<RenderStyle>& animatedStyle) override; 49 virtual void getAnimatedStyle(RefPtr<RenderStyle>&) override; 50 51 const KeyframeList& keyframes() const { return m_keyframes; } 52 53 const AtomicString& name() const { return m_keyframes.animationName(); } 54 int index() const { return m_index; } 55 void setIndex(int i) { m_index = i; } 56 57 bool hasAnimationForProperty(CSSPropertyID) const; 58 59 void setUnanimatedStyle(PassRefPtr<RenderStyle> style) { m_unanimatedStyle = style; } 60 RenderStyle* unanimatedStyle() const { return m_unanimatedStyle.get(); } 61 62 virtual double timeToNextService() override; 63 64protected: 65 virtual void onAnimationStart(double elapsedTime) override; 66 virtual void onAnimationIteration(double elapsedTime) override; 67 virtual void onAnimationEnd(double elapsedTime) override; 68 virtual bool startAnimation(double timeOffset) override; 69 virtual void pauseAnimation(double timeOffset) override; 70 virtual void endAnimation() override; 71 72 virtual void overrideAnimations() override; 73 virtual void resumeOverriddenAnimations() override; 74 75 bool shouldSendEventForListener(Document::ListenerType inListenerType) const; 76 bool sendAnimationEvent(const AtomicString&, double elapsedTime); 77 78 virtual bool affectsProperty(CSSPropertyID) const override; 79 80 void validateTransformFunctionList(); 81#if ENABLE(CSS_FILTERS) 82 void checkForMatchingFilterFunctionLists(); 83#endif 84 85private: 86 KeyframeAnimation(const Animation&, RenderElement*, int index, CompositeAnimation*, RenderStyle* unanimatedStyle); 87 virtual ~KeyframeAnimation(); 88 89 // Get the styles for the given property surrounding the current animation time and the progress between them. 90 void fetchIntervalEndpointsForProperty(CSSPropertyID, const RenderStyle*& fromStyle, const RenderStyle*& toStyle, double& progress) const; 91 92 // The keyframes that we are blending. 93 KeyframeList m_keyframes; 94 95 // The order in which this animation appears in the animation-name style. 96 int m_index; 97 bool m_startEventDispatched; 98 99 // The style just before we started animation 100 RefPtr<RenderStyle> m_unanimatedStyle; 101}; 102 103} // namespace WebCore 104 105#endif // KeyframeAnimation_h 106