2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 * Copyright (C) 2011 Ericsson AB. All rights reserved.
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26 #ifndef MediaStreamTrack_h
27 #define MediaStreamTrack_h
29 #include "core/dom/ActiveDOMObject.h"
30 #include "modules/EventTargetModules.h"
31 #include "modules/mediastream/SourceInfo.h"
32 #include "platform/mediastream/MediaStreamDescriptor.h"
33 #include "platform/mediastream/MediaStreamSource.h"
34 #include "wtf/Forward.h"
38 class AudioSourceProvider;
40 class MediaStreamComponent;
41 class MediaStreamTrackSourcesCallback;
43 class MediaStreamTrack FINAL
44 : public RefCountedGarbageCollectedWillBeGarbageCollectedFinalized<MediaStreamTrack>
45 , public ActiveDOMObject
46 , public EventTargetWithInlineData
47 , public MediaStreamSource::Observer {
48 DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollectedWillBeGarbageCollectedFinalized<MediaStreamTrack>);
49 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MediaStreamTrack);
51 static MediaStreamTrack* create(ExecutionContext*, MediaStreamComponent*);
52 virtual ~MediaStreamTrack();
59 void setEnabled(bool);
63 String readyState() const;
65 static void getSources(ExecutionContext*, PassOwnPtr<MediaStreamTrackSourcesCallback>, ExceptionState&);
66 void stopTrack(ExceptionState&);
67 MediaStreamTrack* clone(ExecutionContext*);
69 DEFINE_ATTRIBUTE_EVENT_LISTENER(mute);
70 DEFINE_ATTRIBUTE_EVENT_LISTENER(unmute);
71 DEFINE_ATTRIBUTE_EVENT_LISTENER(ended);
73 MediaStreamComponent* component();
76 void registerMediaStream(MediaStream*);
77 void unregisterMediaStream(MediaStream*);
80 virtual const AtomicString& interfaceName() const OVERRIDE;
81 virtual ExecutionContext* executionContext() const OVERRIDE;
84 virtual void stop() OVERRIDE;
86 PassOwnPtr<AudioSourceProvider> createWebAudioSource();
88 virtual void trace(Visitor*) OVERRIDE;
91 MediaStreamTrack(ExecutionContext*, MediaStreamComponent*);
93 // MediaStreamSourceObserver
94 virtual void sourceChangedState() OVERRIDE;
96 void propagateTrackEnded();
98 MediaStreamSource::ReadyState m_readyState;
99 HeapHashSet<Member<MediaStream> > m_registeredMediaStreams;
100 bool m_isIteratingRegisteredMediaStreams;
102 RefPtr<MediaStreamComponent> m_component;
105 typedef HeapVector<Member<MediaStreamTrack> > MediaStreamTrackVector;
109 #endif // MediaStreamTrack_h