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 Player_h 32 #define Player_h 33 34 #include "core/animation/TimedItem.h" 35 #include "wtf/RefPtr.h" 36 37 namespace WebCore { 38 39 class DocumentTimeline; 40 41 class Player FINAL : public RefCounted<Player> { 42 43 public: 44 ~Player(); 45 static PassRefPtr<Player> create(DocumentTimeline*, TimedItem*); 46 47 // Returns whether this player is still current or in effect. 48 bool update(); 49 void cancel(); 50 double currentTime() const; 51 void setCurrentTime(double); 52 bool paused() const { return !isNull(m_pauseStartTime); } 53 void setPaused(bool); 54 double playbackRate() const { return m_playbackRate; } 55 void setPlaybackRate(double); 56 double startTime() const { return m_startTime; } 57 double timeDrift() const; 58 DocumentTimeline* timeline() { return m_timeline; } 59 60 private: 61 Player(DocumentTimeline*, TimedItem*); 62 static double effectiveTime(double time) { return isNull(time) ? 0 : time; } 63 inline double pausedTimeDrift() const; 64 inline double currentTimeBeforeDrift() const; 65 66 double m_pauseStartTime; 67 double m_playbackRate; 68 double m_timeDrift; 69 const double m_startTime; 70 71 RefPtr<TimedItem> m_content; 72 DocumentTimeline* const m_timeline; 73 }; 74 75 } // namespace 76 77 #endif 78
