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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
* Copyright (C) 2011 Ericsson AB. All rights reserved.
* Copyright (C) 2013 Apple Inc. All rights reserved.
* Copyright (C) 2013 Nokia Corporation and/or its subsidiary(-ies).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef MediaStream_h
#define MediaStream_h
#if ENABLE(MEDIA_STREAM)
#include "ContextDestructionObserver.h"
#include "EventTarget.h"
#include "ExceptionBase.h"
#include "MediaStreamPrivate.h"
#include "MediaStreamTrack.h"
#include "ScriptWrappable.h"
#include "Timer.h"
#include "URLRegistry.h"
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class MediaStreamCenter;
class MediaStream final : public RefCounted<MediaStream>, public URLRegistrable, public ScriptWrappable, public MediaStreamPrivateClient, public EventTargetWithInlineData, public ContextDestructionObserver {
public:
class Observer {
public:
virtual void didAddOrRemoveTrack() = 0;
};
static PassRefPtr<MediaStream> create(ScriptExecutionContext&);
static PassRefPtr<MediaStream> create(ScriptExecutionContext&, PassRefPtr<MediaStream>);
static PassRefPtr<MediaStream> create(ScriptExecutionContext&, const Vector<RefPtr<MediaStreamTrack>>&);
static PassRefPtr<MediaStream> create(ScriptExecutionContext&, PassRefPtr<MediaStreamPrivate>);
virtual ~MediaStream();
String id() const { return m_private->id(); }
void addTrack(PassRefPtr<MediaStreamTrack>, ExceptionCode&);
void removeTrack(PassRefPtr<MediaStreamTrack>, ExceptionCode&);
MediaStreamTrack* getTrackById(String);
Vector<RefPtr<MediaStreamTrack>> getAudioTracks() const { return m_audioTracks; }
Vector<RefPtr<MediaStreamTrack>> getVideoTracks() const { return m_videoTracks; }
Vector<RefPtr<MediaStreamTrack>> getTracks();
PassRefPtr<MediaStream> clone();
DEFINE_ATTRIBUTE_EVENT_LISTENER(addtrack);
DEFINE_ATTRIBUTE_EVENT_LISTENER(removetrack);
bool active() const;
void setActive(bool);
DEFINE_ATTRIBUTE_EVENT_LISTENER(active);
DEFINE_ATTRIBUTE_EVENT_LISTENER(inactive);
MediaStreamPrivate* privateStream() const { return m_private.get(); }
// EventTarget
virtual EventTargetInterface eventTargetInterface() const final { return MediaStreamEventTargetInterfaceType; }
virtual ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); }
using RefCounted<MediaStream>::ref;
using RefCounted<MediaStream>::deref;
// URLRegistrable
virtual URLRegistry& registry() const override;
void addObserver(Observer*);
void removeObserver(Observer*);
protected:
MediaStream(ScriptExecutionContext&, PassRefPtr<MediaStreamPrivate>);
// ContextDestructionObserver
virtual void contextDestroyed() override final;
private:
// EventTarget
virtual void refEventTarget() override final { ref(); }
virtual void derefEventTarget() override final { deref(); }
// MediaStreamPrivateClient
virtual void trackDidEnd() override final;
virtual void setStreamIsActive(bool) override final;
virtual void addRemoteSource(MediaStreamSource*) override final;
virtual void removeRemoteSource(MediaStreamSource*) override final;
virtual void addRemoteTrack(MediaStreamTrackPrivate*) override final;
virtual void removeRemoteTrack(MediaStreamTrackPrivate*) override final;
bool removeTrack(PassRefPtr<MediaStreamTrack>);
bool addTrack(PassRefPtr<MediaStreamTrack>);
bool haveTrackWithSource(PassRefPtr<MediaStreamSource>);
void scheduleDispatchEvent(PassRefPtr<Event>);
void scheduledEventTimerFired(Timer<MediaStream>*);
void cloneMediaStreamTrackVector(Vector<RefPtr<MediaStreamTrack>>&, const Vector<RefPtr<MediaStreamTrack>>&);
Vector<RefPtr<MediaStreamTrack>>* trackVectorForType(MediaStreamSource::Type);
RefPtr<MediaStreamPrivate> m_private;
Vector<RefPtr<MediaStreamTrack>> m_audioTracks;
Vector<RefPtr<MediaStreamTrack>> m_videoTracks;
Timer<MediaStream> m_scheduledEventTimer;
Vector<RefPtr<Event>> m_scheduledEvents;
Vector<Observer*> m_observers;
};
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
#endif // MediaStream_h
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