michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef MEDIASTREAMTRACK_H_
michael@0: #define MEDIASTREAMTRACK_H_
michael@0: 
michael@0: #include "mozilla/DOMEventTargetHelper.h"
michael@0: #include "nsID.h"
michael@0: #include "StreamBuffer.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: class DOMMediaStream;
michael@0: 
michael@0: namespace dom {
michael@0: 
michael@0: class AudioStreamTrack;
michael@0: class VideoStreamTrack;
michael@0: 
michael@0: /**
michael@0:  * Class representing a track in a DOMMediaStream.
michael@0:  */
michael@0: class MediaStreamTrack : public DOMEventTargetHelper {
michael@0: public:
michael@0:   /**
michael@0:    * aTrackID is the MediaStreamGraph track ID for the track in the
michael@0:    * MediaStream owned by aStream.
michael@0:    */
michael@0:   MediaStreamTrack(DOMMediaStream* aStream, TrackID aTrackID);
michael@0:   virtual ~MediaStreamTrack();
michael@0: 
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0:   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MediaStreamTrack,
michael@0:                                            DOMEventTargetHelper)
michael@0: 
michael@0:   DOMMediaStream* GetParentObject() const { return mStream; }
michael@0:   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE = 0;
michael@0: 
michael@0:   DOMMediaStream* GetStream() const { return mStream; }
michael@0:   TrackID GetTrackID() const { return mTrackID; }
michael@0:   virtual AudioStreamTrack* AsAudioStreamTrack() { return nullptr; }
michael@0:   virtual VideoStreamTrack* AsVideoStreamTrack() { return nullptr; }
michael@0: 
michael@0:   // WebIDL
michael@0:   virtual void GetKind(nsAString& aKind) = 0;
michael@0:   void GetId(nsAString& aID);
michael@0:   void GetLabel(nsAString& aLabel) { aLabel.Truncate(); }
michael@0:   bool Enabled() { return mEnabled; }
michael@0:   void SetEnabled(bool aEnabled);
michael@0: 
michael@0:   // Notifications from the MediaStreamGraph
michael@0:   void NotifyEnded() { mEnded = true; }
michael@0: 
michael@0: protected:
michael@0:   nsRefPtr<DOMMediaStream> mStream;
michael@0:   TrackID mTrackID;
michael@0:   nsID mID;
michael@0:   bool mEnded;
michael@0:   bool mEnabled;
michael@0: };
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif /* MEDIASTREAMTRACK_H_ */