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| 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 "core/events/EventTarget.h" | |
| 30 #include "core/html/HTMLMediaElement.h" | |
| 31 #include "wtf/LinkedHashSet.h" | |
| 32 #include "wtf/PassRefPtr.h" | |
| 33 #include "wtf/RefCounted.h" | |
| 34 | |
| 35 namespace blink { | |
| 36 | |
| 37 class Clock; | |
| 38 class ExceptionState; | |
| 39 class ExecutionContext; | |
| 40 class GenericEventQueue; | |
| 41 | |
| 42 class MediaController FINAL : public RefCountedWillBeGarbageCollectedFinalized<M
ediaController>, public EventTargetWithInlineData { | |
| 43 DEFINE_WRAPPERTYPEINFO(); | |
| 44 REFCOUNTED_EVENT_TARGET(MediaController); | |
| 45 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MediaController); | |
| 46 public: | |
| 47 static PassRefPtrWillBeRawPtr<MediaController> create(ExecutionContext*); | |
| 48 virtual ~MediaController(); | |
| 49 | |
| 50 void addMediaElement(HTMLMediaElement*); | |
| 51 void removeMediaElement(HTMLMediaElement*); | |
| 52 | |
| 53 PassRefPtrWillBeRawPtr<TimeRanges> buffered() const; | |
| 54 PassRefPtrWillBeRawPtr<TimeRanges> seekable() const; | |
| 55 PassRefPtrWillBeRawPtr<TimeRanges> played(); | |
| 56 | |
| 57 double duration() const; | |
| 58 double currentTime() const; | |
| 59 void setCurrentTime(double, ExceptionState&); | |
| 60 | |
| 61 bool paused() const { return m_paused; } | |
| 62 void play(); | |
| 63 void pause(); | |
| 64 void unpause(); | |
| 65 | |
| 66 double defaultPlaybackRate() const { return m_defaultPlaybackRate; } | |
| 67 void setDefaultPlaybackRate(double); | |
| 68 | |
| 69 double playbackRate() const; | |
| 70 void setPlaybackRate(double); | |
| 71 | |
| 72 double volume() const { return m_volume; } | |
| 73 void setVolume(double, ExceptionState&); | |
| 74 | |
| 75 bool muted() const { return m_muted; } | |
| 76 void setMuted(bool); | |
| 77 | |
| 78 typedef HTMLMediaElement::ReadyState ReadyState; | |
| 79 ReadyState readyState() const { return m_readyState; } | |
| 80 | |
| 81 enum PlaybackState { WAITING, PLAYING, ENDED }; | |
| 82 const AtomicString& playbackState() const; | |
| 83 | |
| 84 bool isRestrained() const; | |
| 85 bool isBlocked() const; | |
| 86 | |
| 87 #if !ENABLE(OILPAN) | |
| 88 void clearExecutionContext() { m_executionContext = nullptr; } | |
| 89 #endif | |
| 90 | |
| 91 virtual void trace(Visitor*) OVERRIDE; | |
| 92 | |
| 93 private: | |
| 94 MediaController(ExecutionContext*); | |
| 95 void reportControllerState(); | |
| 96 void updateReadyState(); | |
| 97 void updatePlaybackState(); | |
| 98 void updateMediaElements(); | |
| 99 void bringElementUpToSpeed(HTMLMediaElement*); | |
| 100 void scheduleEvent(const AtomicString& eventName); | |
| 101 void clearPositionTimerFired(Timer<MediaController>*); | |
| 102 bool hasEnded() const; | |
| 103 void scheduleTimeupdateEvent(); | |
| 104 void timeupdateTimerFired(Timer<MediaController>*); | |
| 105 void startTimeupdateTimer(); | |
| 106 | |
| 107 // EventTarget | |
| 108 virtual const AtomicString& interfaceName() const OVERRIDE; | |
| 109 virtual ExecutionContext* executionContext() const OVERRIDE { return m_execu
tionContext; } | |
| 110 | |
| 111 friend class HTMLMediaElement; | |
| 112 friend class MediaControllerEventListener; | |
| 113 // FIXME: A MediaController should ideally keep an otherwise | |
| 114 // unreferenced slaved media element alive. When Oilpan is | |
| 115 // enabled by default, consider making the hash set references | |
| 116 // strong to accomplish that. crbug.com/383072 | |
| 117 typedef WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<HTMLMediaElement> > M
ediaElementSequence; | |
| 118 MediaElementSequence m_mediaElements; | |
| 119 bool m_paused; | |
| 120 double m_defaultPlaybackRate; | |
| 121 double m_volume; | |
| 122 mutable double m_position; | |
| 123 bool m_muted; | |
| 124 ReadyState m_readyState; | |
| 125 PlaybackState m_playbackState; | |
| 126 OwnPtrWillBeMember<GenericEventQueue> m_pendingEventsQueue; | |
| 127 mutable Timer<MediaController> m_clearPositionTimer; | |
| 128 OwnPtr<Clock> m_clock; | |
| 129 RawPtrWillBeWeakMember<ExecutionContext> m_executionContext; | |
| 130 Timer<MediaController> m_timeupdateTimer; | |
| 131 double m_previousTimeupdateTime; | |
| 132 }; | |
| 133 | |
| 134 } // namespace blink | |
| 135 | |
| 136 #endif // MediaController_h | |
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