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/*
* Copyright (C) 2012 Google Inc. 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.
* 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
#include "bindings/core/v8/Dictionary.h"
#include "bindings/core/v8/ScriptPromise.h"
#include "core/dom/ActiveDOMObject.h"
#include "modules/EventTargetModules.h"
#include "modules/crypto/NormalizeAlgorithm.h"
#include "modules/mediastream/MediaStream.h"
#include "modules/mediastream/RTCIceCandidate.h"
#include "platform/AsyncMethodRunner.h"
#include "public/platform/WebMediaConstraints.h"
#include "public/platform/WebRTCPeerConnectionHandler.h"
#include "public/platform/WebRTCPeerConnectionHandlerClient.h"
namespace blink {
class ExceptionState;
class MediaStreamTrack;
class RTCConfiguration;
class RTCDTMFSender;
class RTCDataChannel;
class RTCIceCandidateInitOrRTCIceCandidate;
class RTCOfferOptions;
class RTCPeerConnectionErrorCallback;
class RTCSessionDescription;
class RTCSessionDescriptionCallback;
class RTCSessionDescriptionInit;
class RTCStatsCallback;
class ScriptState;
class VoidCallback;
class RTCPeerConnection final
: public RefCountedGarbageCollectedEventTargetWithInlineData<RTCPeerConnection>
, public WebRTCPeerConnectionHandlerClient
, public ActiveDOMObject {
REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(RTCPeerConnection);
DEFINE_WRAPPERTYPEINFO();
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(RTCPeerConnection);
public:
// TODO(hbos): Create with expired RTCCertificate should fail, see crbug.com/565278.
static RTCPeerConnection* create(ExecutionContext*, const Dictionary&, const Dictionary&, ExceptionState&);
~RTCPeerConnection() override;
void createOffer(ExecutionContext*, RTCSessionDescriptionCallback*, RTCPeerConnectionErrorCallback*, const Dictionary&, ExceptionState&);
void createAnswer(ExecutionContext*, RTCSessionDescriptionCallback*, RTCPeerConnectionErrorCallback*, const Dictionary&, ExceptionState&);
ScriptPromise setLocalDescription(ScriptState*, const RTCSessionDescriptionInit&);
ScriptPromise setLocalDescription(ScriptState*, RTCSessionDescription*, VoidCallback*, RTCPeerConnectionErrorCallback*);
RTCSessionDescription* localDescription();
ScriptPromise setRemoteDescription(ScriptState*, const RTCSessionDescriptionInit&);
ScriptPromise setRemoteDescription(ScriptState*, RTCSessionDescription*, VoidCallback*, RTCPeerConnectionErrorCallback*);
RTCSessionDescription* remoteDescription();
String signalingState() const;
void updateIce(ExecutionContext*, const Dictionary& rtcConfiguration, const Dictionary& mediaConstraints, ExceptionState&);
// Certificate management
// http://w3c.github.io/webrtc-pc/#sec.cert-mgmt
static ScriptPromise generateCertificate(ScriptState*, const AlgorithmIdentifier& keygenAlgorithm, ExceptionState&);
ScriptPromise addIceCandidate(ScriptState*, const RTCIceCandidateInitOrRTCIceCandidate&);
ScriptPromise addIceCandidate(ScriptState*, RTCIceCandidate*, VoidCallback*, RTCPeerConnectionErrorCallback*);
String iceGatheringState() const;
String iceConnectionState() const;
MediaStreamVector getLocalStreams() const;
MediaStreamVector getRemoteStreams() const;
MediaStream* getStreamById(const String& streamId);
void addStream(ExecutionContext*, MediaStream*, const Dictionary& mediaConstraints, ExceptionState&);
void removeStream(MediaStream*, ExceptionState&);
void getStats(ExecutionContext*, RTCStatsCallback* successCallback, MediaStreamTrack* selector);
RTCDataChannel* createDataChannel(String label, const Dictionary& dataChannelDict, ExceptionState&);
RTCDTMFSender* createDTMFSender(MediaStreamTrack*, ExceptionState&);
void close(ExceptionState&);
// We allow getStats after close, but not other calls or callbacks.
bool shouldFireDefaultCallbacks() { return !m_closed && !m_stopped; }
bool shouldFireGetStatsCallback() { return !m_stopped; }
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);
// WebRTCPeerConnectionHandlerClient
void negotiationNeeded() override;
void didGenerateICECandidate(const WebRTCICECandidate&) override;
void didChangeSignalingState(SignalingState) override;
void didChangeICEGatheringState(ICEGatheringState) override;
void didChangeICEConnectionState(ICEConnectionState) override;
void didAddRemoteStream(const WebMediaStream&) override;
void didRemoveRemoteStream(const WebMediaStream&) override;
void didAddRemoteDataChannel(WebRTCDataChannelHandler*) override;
void releasePeerConnectionHandler() override;
void closePeerConnection() override;
// EventTarget
const AtomicString& interfaceName() const override;
ExecutionContext* executionContext() const override;
// ActiveDOMObject
void suspend() override;
void resume() override;
void stop() override;
// We keep the this object alive until either stopped or closed.
bool hasPendingActivity() const override
{
return !m_closed && !m_stopped;
}
// Oilpan: need to eagerly finalize m_peerHandler
EAGERLY_FINALIZE();
DECLARE_VIRTUAL_TRACE();
private:
typedef Function<bool()> BoolFunction;
class EventWrapper : public GarbageCollectedFinalized<EventWrapper> {
public:
EventWrapper(PassRefPtrWillBeRawPtr<Event>, PassOwnPtr<BoolFunction>);
// Returns true if |m_setupFunction| returns true or it is null.
// |m_event| will only be fired if setup() returns true;
bool setup();
DECLARE_TRACE();
RefPtrWillBeMember<Event> m_event;
private:
OwnPtr<BoolFunction> m_setupFunction;
};
RTCPeerConnection(ExecutionContext*, RTCConfiguration*, WebMediaConstraints, ExceptionState&);
static RTCConfiguration* parseConfiguration(const Dictionary&, ExceptionState&);
static RTCOfferOptions* parseOfferOptions(const Dictionary&, ExceptionState&);
void scheduleDispatchEvent(PassRefPtrWillBeRawPtr<Event>);
void scheduleDispatchEvent(PassRefPtrWillBeRawPtr<Event>, PassOwnPtr<BoolFunction>);
void dispatchScheduledEvent();
bool hasLocalStreamWithTrackId(const String& trackId);
void changeSignalingState(WebRTCPeerConnectionHandlerClient::SignalingState);
void changeIceGatheringState(WebRTCPeerConnectionHandlerClient::ICEGatheringState);
// Changes the state immediately; does not fire an event.
// Returns true if the state was changed.
bool setIceConnectionState(WebRTCPeerConnectionHandlerClient::ICEConnectionState);
// Changes the state asynchronously and fires an event immediately after changing the state.
void changeIceConnectionState(WebRTCPeerConnectionHandlerClient::ICEConnectionState);
void closeInternal();
SignalingState m_signalingState;
ICEGatheringState m_iceGatheringState;
ICEConnectionState m_iceConnectionState;
MediaStreamVector m_localStreams;
MediaStreamVector m_remoteStreams;
OwnPtr<WebRTCPeerConnectionHandler> m_peerHandler;
Member<AsyncMethodRunner<RTCPeerConnection>> m_dispatchScheduledEventRunner;
HeapVector<Member<EventWrapper>> m_scheduledEvents;
bool m_stopped;
bool m_closed;
};
} // namespace blink
#endif // RTCPeerConnection_h
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