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/*
* Copyright (C) 2012 Google 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.
* 3. Neither the name of Google Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 RTCPeerConnection_h
#define RTCPeerConnection_h
#if ENABLE(MEDIA_STREAM)
#include "ActiveDOMObject.h"
#include "Dictionary.h"
#include "EventTarget.h"
#include "ExceptionBase.h"
#include "MediaStream.h"
#include "RTCIceCandidate.h"
#include "RTCPeerConnectionHandler.h"
#include "RTCPeerConnectionHandlerClient.h"
#include "ScriptWrappable.h"
#include "Timer.h"
#include <wtf/RefCounted.h>
namespace WebCore {
class MediaStreamTrack;
class RTCConfiguration;
class RTCDTMFSender;
class RTCDataChannel;
class RTCPeerConnectionErrorCallback;
class RTCSessionDescription;
class RTCSessionDescriptionCallback;
class RTCStatsCallback;
class VoidCallback;
class RTCPeerConnection final : public RefCounted<RTCPeerConnection>, public ScriptWrappable, public RTCPeerConnectionHandlerClient, public EventTargetWithInlineData, public ActiveDOMObject, public MediaStream::Observer {
public:
static PassRefPtr<RTCPeerConnection> create(ScriptExecutionContext&, const Dictionary& rtcConfiguration, ExceptionCode&);
~RTCPeerConnection();
void createOffer(PassRefPtr<RTCSessionDescriptionCallback>, PassRefPtr<RTCPeerConnectionErrorCallback>, const Dictionary& offerOptions, ExceptionCode&);
void createAnswer(PassRefPtr<RTCSessionDescriptionCallback>, PassRefPtr<RTCPeerConnectionErrorCallback>, const Dictionary& answerOptions, ExceptionCode&);
void setLocalDescription(PassRefPtr<RTCSessionDescription>, PassRefPtr<VoidCallback>, PassRefPtr<RTCPeerConnectionErrorCallback>, ExceptionCode&);
PassRefPtr<RTCSessionDescription> localDescription(ExceptionCode&);
void setRemoteDescription(PassRefPtr<RTCSessionDescription>, PassRefPtr<VoidCallback>, PassRefPtr<RTCPeerConnectionErrorCallback>, ExceptionCode&);
PassRefPtr<RTCSessionDescription> remoteDescription(ExceptionCode&);
String signalingState() const;
void updateIce(const Dictionary& rtcConfiguration, ExceptionCode&);
void addIceCandidate(RTCIceCandidate*, PassRefPtr<VoidCallback>, PassRefPtr<RTCPeerConnectionErrorCallback>, ExceptionCode&);
String iceGatheringState() const;
String iceConnectionState() const;
RTCConfiguration* getConfiguration() const;
Vector<RefPtr<MediaStream>> getLocalStreams() const;
Vector<RefPtr<MediaStream>> getRemoteStreams() const;
MediaStream* getStreamById(const String& streamId);
void addStream(PassRefPtr<MediaStream>, ExceptionCode&);
void removeStream(PassRefPtr<MediaStream>, ExceptionCode&);
void getStats(PassRefPtr<RTCStatsCallback> successCallback, PassRefPtr<RTCPeerConnectionErrorCallback>, PassRefPtr<MediaStreamTrack> selector);
PassRefPtr<RTCDataChannel> createDataChannel(String label, const Dictionary& dataChannelDict, ExceptionCode&);
PassRefPtr<RTCDTMFSender> createDTMFSender(PassRefPtr<MediaStreamTrack>, ExceptionCode&);
void close(ExceptionCode&);
DEFINE_ATTRIBUTE_EVENT_LISTENER(negotiationneeded);
DEFINE_ATTRIBUTE_EVENT_LISTENER(icecandidate);
DEFINE_ATTRIBUTE_EVENT_LISTENER(signalingstatechange);
DEFINE_ATTRIBUTE_EVENT_LISTENER(addstream);
DEFINE_ATTRIBUTE_EVENT_LISTENER(removestream);
DEFINE_ATTRIBUTE_EVENT_LISTENER(iceconnectionstatechange);
DEFINE_ATTRIBUTE_EVENT_LISTENER(datachannel);
// RTCPeerConnectionHandlerClient
virtual void negotiationNeeded() override;
virtual void didGenerateIceCandidate(PassRefPtr<RTCIceCandidateDescriptor>) override;
virtual void didChangeSignalingState(SignalingState) override;
virtual void didChangeIceGatheringState(IceGatheringState) override;
virtual void didChangeIceConnectionState(IceConnectionState) override;
virtual void didAddRemoteStream(PassRefPtr<MediaStreamPrivate>) override;
virtual void didRemoveRemoteStream(MediaStreamPrivate*) override;
virtual void didAddRemoteDataChannel(std::unique_ptr<RTCDataChannelHandler>) override;
// EventTarget
virtual EventTargetInterface eventTargetInterface() const override { return RTCPeerConnectionEventTargetInterfaceType; }
virtual ScriptExecutionContext* scriptExecutionContext() const override { return ActiveDOMObject::scriptExecutionContext(); }
// ActiveDOMObject
virtual void stop() override;
// MediaStream::Observer
virtual void didAddOrRemoveTrack() override;
using RefCounted<RTCPeerConnection>::ref;
using RefCounted<RTCPeerConnection>::deref;
private:
RTCPeerConnection(ScriptExecutionContext&, PassRefPtr<RTCConfiguration>, ExceptionCode&);
static PassRefPtr<RTCConfiguration> parseConfiguration(const Dictionary& configuration, ExceptionCode&);
void scheduleDispatchEvent(PassRefPtr<Event>);
void scheduledEventTimerFired(Timer<RTCPeerConnection>*);
bool hasLocalStreamWithTrackId(const String& trackId);
// EventTarget implementation.
virtual void refEventTarget() override { ref(); }
virtual void derefEventTarget() override { deref(); }
void changeSignalingState(SignalingState);
void changeIceGatheringState(IceGatheringState);
void changeIceConnectionState(IceConnectionState);
bool checkStateForLocalDescription(RTCSessionDescription*);
bool checkStateForRemoteDescription(RTCSessionDescription*);
SignalingState m_signalingState;
IceGatheringState m_iceGatheringState;
IceConnectionState m_iceConnectionState;
Vector<RefPtr<MediaStream>> m_localStreams;
Vector<RefPtr<MediaStream>> m_remoteStreams;
Vector<RefPtr<RTCDataChannel>> m_dataChannels;
std::unique_ptr<RTCPeerConnectionHandler> m_peerHandler;
Timer<RTCPeerConnection> m_scheduledEventTimer;
Vector<RefPtr<Event>> m_scheduledEvents;
RefPtr<RTCConfiguration> m_configuration;
bool m_stopped;
};
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
#endif // RTCPeerConnection_h
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