1 /* 2 * Copyright (C) 2013 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef ActiveAnimations_h 32 #define ActiveAnimations_h 33 34 #include "core/animation/AnimationStack.h" 35 #include "core/animation/css/CSSAnimations.h" 36 #include "wtf/HashCountedSet.h" 37 #include "wtf/HashMap.h" 38 #include "wtf/RefPtr.h" 39 #include "wtf/Vector.h" 40 41 namespace WebCore { 42 43 class CSSAnimations; 44 class RenderObject; 45 class Element; 46 47 // FIXME: Move these to CompositorAnimations 48 bool shouldCompositeForActiveAnimations(const RenderObject&); 49 bool hasActiveAnimations(const RenderObject&, CSSPropertyID); 50 bool hasActiveAnimationsOnCompositor(const RenderObject&, CSSPropertyID); 51 52 class ActiveAnimations { 53 public: 54 ActiveAnimations() 55 : m_animationStyleChange(false) { } 56 57 // Animations that are currently active for this element, their effects will be applied 58 // during a style recalc. CSS Transitions are included in this stack. 59 AnimationStack& defaultStack() { return m_defaultStack; } 60 // Tracks the state of active CSS Animations and Transitions. The individual animations 61 // will also be part of the default stack, but the mapping betwen animation name and 62 // player is kept here. 63 CSSAnimations& cssAnimations() { return m_cssAnimations; } 64 const CSSAnimations& cssAnimations() const { return m_cssAnimations; } 65 66 typedef HashCountedSet<Player*> PlayerSet; 67 // Players which have animations targeting this element. 68 const PlayerSet& players() const { return m_players; } 69 PlayerSet& players() { return m_players; } 70 71 bool isEmpty() const { return m_defaultStack.isEmpty() && m_cssAnimations.isEmpty(); } 72 73 bool hasActiveAnimations(CSSPropertyID) const; 74 bool hasActiveAnimationsOnCompositor(CSSPropertyID) const; 75 void cancelAnimationOnCompositor(); 76 77 void setAnimationStyleChange(bool animationStyleChange) { m_animationStyleChange = animationStyleChange; } 78 79 private: 80 bool isAnimationStyleChange() const { return m_animationStyleChange; } 81 82 AnimationStack m_defaultStack; 83 CSSAnimations m_cssAnimations; 84 PlayerSet m_players; 85 bool m_animationStyleChange; 86 87 // CSSAnimations checks if a style change is due to animation. 88 friend class CSSAnimations; 89 }; 90 91 } // namespace WebCore 92 93 #endif 94
