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/events/Event.h" 31 #include "core/events/EventTarget.h" 32 #include "core/html/MediaControllerInterface.h" 33 #include "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 ExecutionContext; 45 46 class MediaController : public RefCounted<MediaController>, public ScriptWrappable, public MediaControllerInterface, public EventTargetWithInlineData { 47 REFCOUNTED_EVENT_TARGET(MediaController); 48 public: 49 static PassRefPtr<MediaController> create(ExecutionContext*); 50 virtual ~MediaController(); 51 52 void addMediaElement(HTMLMediaElement*); 53 void removeMediaElement(HTMLMediaElement*); 54 bool containsMediaElement(HTMLMediaElement*) const; 55 56 const String& mediaGroup() const { return m_mediaGroup; } 57 58 virtual PassRefPtr<TimeRanges> buffered() const; 59 virtual PassRefPtr<TimeRanges> seekable() const; 60 virtual PassRefPtr<TimeRanges> played(); 61 62 virtual double duration() const; 63 virtual double currentTime() const; 64 virtual void setCurrentTime(double, ExceptionState&); 65 66 virtual bool paused() const { return m_paused; } 67 virtual void play(); 68 virtual void pause(); 69 void unpause(); 70 71 virtual double defaultPlaybackRate() const { return m_defaultPlaybackRate; } 72 virtual void setDefaultPlaybackRate(double); 73 74 virtual double playbackRate() const; 75 virtual void setPlaybackRate(double); 76 77 virtual double volume() const { return m_volume; } 78 virtual void setVolume(double, ExceptionState&); 79 80 virtual bool muted() const { return m_muted; } 81 virtual void setMuted(bool); 82 83 virtual ReadyState readyState() const { return m_readyState; } 84 85 enum PlaybackState { WAITING, PLAYING, ENDED }; 86 const AtomicString& playbackState() const; 87 88 virtual bool supportsFullscreen() const { return false; } 89 virtual bool isFullscreen() const { return false; } 90 virtual void enterFullscreen() { } 91 92 virtual bool hasAudio() const; 93 virtual bool hasVideo() const; 94 virtual bool hasClosedCaptions() const; 95 virtual void setClosedCaptionsVisible(bool); 96 virtual bool closedCaptionsVisible() const { return m_closedCaptionsVisible; } 97 98 virtual void beginScrubbing(); 99 virtual void endScrubbing(); 100 101 virtual bool canPlay() const; 102 103 virtual bool hasCurrentSrc() const; 104 105 bool isBlocked() const; 106 107 void clearExecutionContext() { m_executionContext = 0; } 108 109 private: 110 MediaController(ExecutionContext*); 111 void reportControllerState(); 112 void updateReadyState(); 113 void updatePlaybackState(); 114 void updateMediaElements(); 115 void bringElementUpToSpeed(HTMLMediaElement*); 116 void scheduleEvent(const AtomicString& eventName); 117 void asyncEventTimerFired(Timer<MediaController>*); 118 void clearPositionTimerFired(Timer<MediaController>*); 119 bool hasEnded() const; 120 void scheduleTimeupdateEvent(); 121 void timeupdateTimerFired(Timer<MediaController>*); 122 void startTimeupdateTimer(); 123 124 // EventTarget 125 virtual const AtomicString& interfaceName() const OVERRIDE; 126 virtual ExecutionContext* executionContext() const OVERRIDE { return m_executionContext; } 127 128 friend class HTMLMediaElement; 129 friend class MediaControllerEventListener; 130 Vector<HTMLMediaElement*> m_mediaElements; 131 bool m_paused; 132 double m_defaultPlaybackRate; 133 double m_volume; 134 mutable double m_position; 135 bool m_muted; 136 ReadyState m_readyState; 137 PlaybackState m_playbackState; 138 Vector<RefPtr<Event> > m_pendingEvents; 139 Timer<MediaController> m_asyncEventTimer; 140 mutable Timer<MediaController> m_clearPositionTimer; 141 String m_mediaGroup; 142 bool m_closedCaptionsVisible; 143 OwnPtr<Clock> m_clock; 144 ExecutionContext* m_executionContext; 145 Timer<MediaController> m_timeupdateTimer; 146 double m_previousTimeupdateTime; 147 }; 148 149 } // namespace WebCore 150 151 #endif 152
