1 /* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * Copyright (C) 2011 Ericsson AB. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 21 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 23 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef MediaStream_h 27 #define MediaStream_h 28 29 #include "bindings/v8/ScriptWrappable.h" 30 #include "core/dom/ContextLifecycleObserver.h" 31 #include "core/html/URLRegistry.h" 32 #include "modules/EventTargetModules.h" 33 #include "modules/mediastream/MediaStreamTrack.h" 34 #include "platform/Timer.h" 35 #include "platform/mediastream/MediaStreamDescriptor.h" 36 #include "wtf/RefCounted.h" 37 #include "wtf/RefPtr.h" 38 39 namespace WebCore { 40 41 class ExceptionState; 42 43 class MediaStream FINAL : public RefCountedWillBeRefCountedGarbageCollected<MediaStream>, public ScriptWrappable, 44 public URLRegistrable, public MediaStreamDescriptorClient, public EventTargetWithInlineData, public ContextLifecycleObserver { 45 REFCOUNTED_EVENT_TARGET(MediaStream); 46 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MediaStream); 47 public: 48 static PassRefPtrWillBeRawPtr<MediaStream> create(ExecutionContext*); 49 static PassRefPtrWillBeRawPtr<MediaStream> create(ExecutionContext*, PassRefPtrWillBeRawPtr<MediaStream>); 50 static PassRefPtrWillBeRawPtr<MediaStream> create(ExecutionContext*, const MediaStreamTrackVector&); 51 static PassRefPtrWillBeRawPtr<MediaStream> create(ExecutionContext*, PassRefPtr<MediaStreamDescriptor>); 52 virtual ~MediaStream(); 53 54 // DEPRECATED label()55 String label() const { return m_descriptor->id(); } 56 id()57 String id() const { return m_descriptor->id(); } 58 59 void addTrack(PassRefPtrWillBeRawPtr<MediaStreamTrack>, ExceptionState&); 60 void removeTrack(PassRefPtrWillBeRawPtr<MediaStreamTrack>, ExceptionState&); 61 MediaStreamTrack* getTrackById(String); 62 PassRefPtrWillBeRawPtr<MediaStream> clone(ExecutionContext*); 63 getAudioTracks()64 MediaStreamTrackVector getAudioTracks() const { return m_audioTracks; } getVideoTracks()65 MediaStreamTrackVector getVideoTracks() const { return m_videoTracks; } 66 67 bool ended() const; 68 void stop(); 69 70 DEFINE_ATTRIBUTE_EVENT_LISTENER(ended); 71 DEFINE_ATTRIBUTE_EVENT_LISTENER(addtrack); 72 DEFINE_ATTRIBUTE_EVENT_LISTENER(removetrack); 73 74 void trackEnded(); 75 76 // MediaStreamDescriptorClient 77 virtual void streamEnded() OVERRIDE; 78 descriptor()79 MediaStreamDescriptor* descriptor() const { return m_descriptor.get(); } 80 81 // EventTarget 82 virtual const AtomicString& interfaceName() const OVERRIDE; 83 virtual ExecutionContext* executionContext() const OVERRIDE; 84 85 // URLRegistrable 86 virtual URLRegistry& registry() const OVERRIDE; 87 88 virtual void trace(Visitor*) OVERRIDE; 89 90 private: 91 MediaStream(ExecutionContext*, PassRefPtr<MediaStreamDescriptor>); 92 MediaStream(ExecutionContext*, const MediaStreamTrackVector& audioTracks, const MediaStreamTrackVector& videoTracks); 93 94 // ContextLifecycleObserver 95 virtual void contextDestroyed() OVERRIDE; 96 97 // MediaStreamDescriptorClient 98 virtual void addRemoteTrack(MediaStreamComponent*) OVERRIDE; 99 virtual void removeRemoteTrack(MediaStreamComponent*) OVERRIDE; 100 101 void scheduleDispatchEvent(PassRefPtrWillBeRawPtr<Event>); 102 void scheduledEventTimerFired(Timer<MediaStream>*); 103 104 bool m_stopped; 105 106 MediaStreamTrackVector m_audioTracks; 107 MediaStreamTrackVector m_videoTracks; 108 RefPtr<MediaStreamDescriptor> m_descriptor; 109 110 Timer<MediaStream> m_scheduledEventTimer; 111 WillBeHeapVector<RefPtrWillBeMember<Event> > m_scheduledEvents; 112 }; 113 114 typedef WillBeHeapVector<RefPtrWillBeMember<MediaStream> > MediaStreamVector; 115 116 } // namespace WebCore 117 118 #endif // MediaStream_h 119