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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
* Copyright (C) 2011 Ericsson AB. All rights reserved.
*
* 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 PeerConnection_h
#define PeerConnection_h
#if ENABLE(MEDIA_STREAM)
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "ExceptionBase.h"
#include "MediaStream.h"
#include "MediaStreamList.h"
#include "PeerConnectionHandler.h"
#include "PeerConnectionHandlerClient.h"
#include "SignalingCallback.h"
#include "Timer.h"
#include <wtf/OwnPtr.h>
#include <wtf/RefCounted.h>
namespace WebCore {
// Note:
// SDP stands for Session Description Protocol, which is intended for describing
// multimedia sessions for the purposes of session announcement, session
// invitation, and other forms of multimedia session initiation.
//
// More information can be found here:
// http://tools.ietf.org/html/rfc4566
// http://en.wikipedia.org/wiki/Session_Description_Protocol
class PeerConnection : public RefCounted<PeerConnection>, public PeerConnectionHandlerClient, public EventTarget, public ActiveDOMObject {
public:
static PassRefPtr<PeerConnection> create(ScriptExecutionContext*, const String& serverConfiguration, PassRefPtr<SignalingCallback>);
~PeerConnection();
void processSignalingMessage(const String& message, ExceptionCode&);
ReadyState readyState() const;
void send(const String& text, ExceptionCode&);
void addStream(const PassRefPtr<MediaStream>, ExceptionCode&);
void removeStream(MediaStream*, ExceptionCode&);
MediaStreamList* localStreams() const;
MediaStreamList* remoteStreams() const;
void close(ExceptionCode&);
DEFINE_ATTRIBUTE_EVENT_LISTENER(connecting);
DEFINE_ATTRIBUTE_EVENT_LISTENER(open);
DEFINE_ATTRIBUTE_EVENT_LISTENER(message);
DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange);
DEFINE_ATTRIBUTE_EVENT_LISTENER(addstream);
DEFINE_ATTRIBUTE_EVENT_LISTENER(removestream);
// PeerConnectionHandlerClient
virtual void didCompleteICEProcessing();
virtual void didGenerateSDP(const String& sdp);
virtual void didReceiveDataStreamMessage(const char* data, size_t length);
virtual void didAddRemoteStream(PassRefPtr<MediaStreamDescriptor>);
virtual void didRemoveRemoteStream(MediaStreamDescriptor*);
virtual void didChangeState(ReadyState state) { changeReadyState(state); }
// EventTarget
virtual const AtomicString& interfaceName() const;
virtual ScriptExecutionContext* scriptExecutionContext() const;
// ActiveDOMObject
virtual void stop();
using RefCounted<PeerConnection>::ref;
using RefCounted<PeerConnection>::deref;
private:
PeerConnection(ScriptExecutionContext*, const String& serverConfiguration, PassRefPtr<SignalingCallback>);
// EventTarget implementation.
virtual EventTargetData* eventTargetData();
virtual EventTargetData* ensureEventTargetData();
virtual void refEventTarget() { ref(); }
virtual void derefEventTarget() { deref(); }
void scheduleInitialNegotiation();
void initialNegotiationTimerFired(Timer<PeerConnection>*);
void ensureStreamChangeScheduled();
void streamChangeTimerFired(Timer<PeerConnection>*);
void scheduleReadyStateChange(ReadyState);
void readyStateChangeTimerFired(Timer<PeerConnection>*);
void changeReadyState(ReadyState);
RefPtr<SignalingCallback> m_signalingCallback;
ReadyState m_readyState;
bool m_iceStarted;
RefPtr<MediaStreamList> m_localStreams;
RefPtr<MediaStreamList> m_remoteStreams;
// EventTarget implementation.
EventTargetData m_eventTargetData;
Timer<PeerConnection> m_initialNegotiationTimer;
Timer<PeerConnection> m_streamChangeTimer;
Timer<PeerConnection> m_readyStateChangeTimer;
MediaStreamDescriptorVector m_pendingAddStreams;
MediaStreamDescriptorVector m_pendingRemoveStreams;
Vector<ReadyState> m_pendingReadyStates;
OwnPtr<PeerConnectionHandler> m_peerHandler;
};
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
#endif // PeerConnection_h
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