1 /* 2 * Copyright (C) 2011 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 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef MediaController_h 27 #define MediaController_h 28 29 #include "bindings/v8/ScriptWrappable.h" 30 #include "core/dom/Event.h" 31 #include "core/dom/EventTarget.h" 32 #include "core/html/MediaControllerInterface.h" 33 #include "core/platform/Timer.h" 34 #include "wtf/PassRefPtr.h" 35 #include "wtf/RefCounted.h" 36 #include "wtf/Vector.h" 37 38 namespace WebCore { 39 40 class Clock; 41 class Event; 42 class ExceptionState; 43 class HTMLMediaElement; 44 class ScriptExecutionContext; 45 46 class MediaController : public RefCounted<MediaController>, public ScriptWrappable, public MediaControllerInterface, public EventTarget { 47 public: 48 static PassRefPtr<MediaController> create(ScriptExecutionContext*); 49 virtual ~MediaController(); 50 51 void addMediaElement(HTMLMediaElement*); 52 void removeMediaElement(HTMLMediaElement*); 53 bool containsMediaElement(HTMLMediaElement*) const; 54 55 const String& mediaGroup() const { return m_mediaGroup; } 56 57 virtual PassRefPtr<TimeRanges> buffered() const; 58 virtual PassRefPtr<TimeRanges> seekable() const; 59 virtual PassRefPtr<TimeRanges> played(); 60 61 virtual double duration() const; 62 virtual double currentTime() const; 63 virtual void setCurrentTime(double, ExceptionState&); 64 65 virtual bool paused() const { return m_paused; } 66 virtual void play(); 67 virtual void pause(); 68 void unpause(); 69 70 virtual double defaultPlaybackRate() const { return m_defaultPlaybackRate; } 71 virtual void setDefaultPlaybackRate(double); 72 73 virtual double playbackRate() const; 74 virtual void setPlaybackRate(double); 75 76 virtual double volume() const { return m_volume; } 77 virtual void setVolume(double, ExceptionState&); 78 79 virtual bool muted() const { return m_muted; } 80 virtual void setMuted(bool); 81 82 virtual ReadyState readyState() const { return m_readyState; } 83 84 enum PlaybackState { WAITING, PLAYING, ENDED }; 85 const AtomicString& playbackState() const; 86 87 virtual bool supportsFullscreen() const { return false; } 88 virtual bool isFullscreen() const { return false; } 89 virtual void enterFullscreen() { } 90 91 virtual bool hasAudio() const; 92 virtual bool hasVideo() const; 93 virtual bool hasClosedCaptions() const; 94 virtual void setClosedCaptionsVisible(bool); 95 virtual bool closedCaptionsVisible() const { return m_closedCaptionsVisible; } 96 97 virtual void beginScrubbing(); 98 virtual void endScrubbing(); 99 100 virtual bool canPlay() const; 101 102 virtual bool hasCurrentSrc() const; 103 104 bool isBlocked() const; 105 106 // EventTarget 107 using RefCounted<MediaController>::ref; 108 using RefCounted<MediaController>::deref; 109 110 private: 111 MediaController(ScriptExecutionContext*); 112 void reportControllerState(); 113 void updateReadyState(); 114 void updatePlaybackState(); 115 void updateMediaElements(); 116 void bringElementUpToSpeed(HTMLMediaElement*); 117 void scheduleEvent(const AtomicString& eventName); 118 void asyncEventTimerFired(Timer<MediaController>*); 119 void clearPositionTimerFired(Timer<MediaController>*); 120 bool hasEnded() const; 121 void scheduleTimeupdateEvent(); 122 void timeupdateTimerFired(Timer<MediaController>*); 123 void startTimeupdateTimer(); 124 125 // EventTarget 126 virtual void refEventTarget() { ref(); } 127 virtual void derefEventTarget() { deref(); } 128 virtual const AtomicString& interfaceName() const; 129 virtual ScriptExecutionContext* scriptExecutionContext() const { return m_scriptExecutionContext; }; 130 virtual EventTargetData* eventTargetData() { return &m_eventTargetData; } 131 virtual EventTargetData* ensureEventTargetData() { return &m_eventTargetData; } 132 EventTargetData m_eventTargetData; 133 134 friend class HTMLMediaElement; 135 friend class MediaControllerEventListener; 136 Vector<HTMLMediaElement*> m_mediaElements; 137 bool m_paused; 138 double m_defaultPlaybackRate; 139 double m_volume; 140 mutable double m_position; 141 bool m_muted; 142 ReadyState m_readyState; 143 PlaybackState m_playbackState; 144 Vector<RefPtr<Event> > m_pendingEvents; 145 Timer<MediaController> m_asyncEventTimer; 146 mutable Timer<MediaController> m_clearPositionTimer; 147 String m_mediaGroup; 148 bool m_closedCaptionsVisible; 149 PassRefPtr<Clock> m_clock; 150 ScriptExecutionContext* m_scriptExecutionContext; 151 Timer<MediaController> m_timeupdateTimer; 152 double m_previousTimeupdateTime; 153 }; 154 155 } // namespace WebCore 156 157 #endif 158
