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 AnimationTimeline_h 32 #define AnimationTimeline_h 33 34 #include "core/animation/AnimationEffect.h" 35 #include "core/animation/AnimationPlayer.h" 36 #include "core/dom/Element.h" 37 #include "core/events/Event.h" 38 #include "platform/Timer.h" 39 #include "platform/heap/Handle.h" 40 #include "wtf/RefCounted.h" 41 #include "wtf/RefPtr.h" 42 #include "wtf/Vector.h" 43 44 namespace WebCore { 45 46 class Document; 47 class AnimationNode; 48 49 // AnimationTimeline is constructed and owned by Document, and tied to its lifecycle. 50 class AnimationTimeline : public RefCountedWillBeGarbageCollectedFinalized<AnimationTimeline> { 51 public: 52 class PlatformTiming : public NoBaseWillBeGarbageCollectedFinalized<PlatformTiming> { 53 54 public: 55 // Calls AnimationTimeline's wake() method after duration seconds. 56 virtual void wakeAfter(double duration) = 0; 57 virtual void cancelWake() = 0; 58 virtual void serviceOnNextFrame() = 0; ~PlatformTiming()59 virtual ~PlatformTiming() { } trace(Visitor *)60 virtual void trace(Visitor*) { } 61 }; 62 63 static PassRefPtrWillBeRawPtr<AnimationTimeline> create(Document*, PassOwnPtrWillBeRawPtr<PlatformTiming> = nullptr); 64 ~AnimationTimeline(); 65 66 void serviceAnimations(TimingUpdateReason); 67 68 // Creates a player attached to this timeline, but without a start time. 69 AnimationPlayer* createAnimationPlayer(AnimationNode*); 70 AnimationPlayer* play(AnimationNode*); 71 72 #if !ENABLE(OILPAN) playerDestroyed(AnimationPlayer * player)73 void playerDestroyed(AnimationPlayer* player) 74 { 75 ASSERT(m_players.contains(player)); 76 m_players.remove(player); 77 } 78 #endif 79 hasPendingUpdates()80 bool hasPendingUpdates() const { return !m_playersNeedingUpdate.isEmpty(); } zeroTime()81 double zeroTime() const { return 0; } 82 double currentTime(bool& isNull); 83 double currentTime(); 84 double currentTimeInternal(bool& isNull); 85 double currentTimeInternal(); 86 double effectiveTime(); 87 void pauseAnimationsForTesting(double); 88 size_t numberOfActiveAnimationsForTesting() const; 89 90 void setOutdatedAnimationPlayer(AnimationPlayer*); 91 bool hasOutdatedAnimationPlayer() const; 92 document()93 Document* document() { return m_document.get(); } 94 #if !ENABLE(OILPAN) 95 void detachFromDocument(); 96 #endif 97 void wake(); 98 99 void trace(Visitor*); 100 101 protected: 102 AnimationTimeline(Document*, PassOwnPtrWillBeRawPtr<PlatformTiming>); 103 104 private: 105 RawPtrWillBeMember<Document> m_document; 106 // AnimationPlayers which will be updated on the next frame 107 // i.e. current, in effect, or had timing changed 108 WillBeHeapHashSet<RefPtrWillBeMember<AnimationPlayer> > m_playersNeedingUpdate; 109 WillBeHeapHashSet<RawPtrWillBeWeakMember<AnimationPlayer> > m_players; 110 111 friend class SMILTimeContainer; 112 static const double s_minimumDelay; 113 114 OwnPtrWillBeMember<PlatformTiming> m_timing; 115 116 class AnimationTimelineTiming FINAL : public PlatformTiming { 117 public: AnimationTimelineTiming(AnimationTimeline * timeline)118 AnimationTimelineTiming(AnimationTimeline* timeline) 119 : m_timeline(timeline) 120 , m_timer(this, &AnimationTimelineTiming::timerFired) 121 { 122 ASSERT(m_timeline); 123 } 124 125 virtual void wakeAfter(double duration) OVERRIDE; 126 virtual void cancelWake() OVERRIDE; 127 virtual void serviceOnNextFrame() OVERRIDE; 128 timerFired(Timer<AnimationTimelineTiming> *)129 void timerFired(Timer<AnimationTimelineTiming>*) { m_timeline->wake(); } 130 131 virtual void trace(Visitor*) OVERRIDE; 132 133 private: 134 RawPtrWillBeMember<AnimationTimeline> m_timeline; 135 Timer<AnimationTimelineTiming> m_timer; 136 }; 137 138 friend class AnimationAnimationTimelineTest; 139 }; 140 141 } // namespace 142 143 #endif 144