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 ImplicitAnimation_h 30 #define ImplicitAnimation_h 31 32 #include "CSSPropertyNames.h" 33 #include "core/dom/Document.h" 34 #include "core/frame/animation/AnimationBase.h" 35 36 namespace WebCore { 37 38 // An ImplicitAnimation tracks the state of a transition of a specific CSS property 39 // for a single RenderObject. 40 class ImplicitAnimation : public AnimationBase { 41 public: 42 static PassRefPtr<ImplicitAnimation> create(const CSSAnimationData* animation, CSSPropertyID animatingProperty, RenderObject& renderer, CompositeAnimation* compositeAnimation, RenderStyle* fromStyle) 43 { 44 return adoptRef(new ImplicitAnimation(animation, animatingProperty, renderer, compositeAnimation, fromStyle)); 45 }; 46 47 CSSPropertyID transitionProperty() const { return m_transitionProperty; } 48 CSSPropertyID animatingProperty() const { return m_animatingProperty; } 49 50 virtual void onAnimationEnd(double elapsedTime); 51 virtual void startAnimation(double timeOffset); 52 virtual void pauseAnimation(double /*timeOffset*/); 53 virtual void endAnimation(); 54 55 virtual void animate(CompositeAnimation*, RenderObject*, const RenderStyle* currentStyle, RenderStyle* targetStyle, RefPtr<RenderStyle>& animatedStyle); 56 virtual void getAnimatedStyle(RefPtr<RenderStyle>& animatedStyle); 57 virtual void reset(RenderStyle* to); 58 59 void setOverridden(bool); 60 virtual bool overridden() const { return m_overridden; } 61 62 virtual bool affectsProperty(CSSPropertyID) const; 63 64 bool hasStyle() const { return m_fromStyle && m_toStyle; } 65 66 bool isTargetPropertyEqual(CSSPropertyID, const RenderStyle*); 67 68 void blendPropertyValueInStyle(CSSPropertyID, RenderStyle*); 69 70 virtual double timeToNextService(); 71 72 bool active() const { return m_active; } 73 void setActive(bool b) { m_active = b; } 74 75 protected: 76 bool shouldSendEventForListener(Document::ListenerType) const; 77 bool sendTransitionEvent(const AtomicString&, double elapsedTime); 78 79 void validateTransformFunctionList(); 80 void checkForMatchingFilterFunctionLists(); 81 82 private: 83 ImplicitAnimation(const CSSAnimationData*, CSSPropertyID, RenderObject&, CompositeAnimation*, RenderStyle*); 84 virtual ~ImplicitAnimation(); 85 86 CSSPropertyID m_transitionProperty; // Transition property as specified in the RenderStyle. 87 CSSPropertyID m_animatingProperty; // Specific property for this ImplicitAnimation 88 bool m_overridden; // true when there is a keyframe animation that overrides the transitioning property 89 bool m_active; // used for culling the list of transitions 90 91 // The two styles that we are blending. 92 RefPtr<RenderStyle> m_fromStyle; 93 RefPtr<RenderStyle> m_toStyle; 94 }; 95 96 } // namespace WebCore 97 98 #endif // ImplicitAnimation_h 99