1 /* 2 * Copyright (C) 2012 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * 3. Neither the name of Google Inc. nor the names of its contributors 15 * may be used to endorse or promote products derived from this 16 * software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef RTCPeerConnection_h 32 #define RTCPeerConnection_h 33 34 #include "bindings/v8/Dictionary.h" 35 #include "bindings/v8/ScriptWrappable.h" 36 #include "core/dom/ActiveDOMObject.h" 37 #include "core/dom/EventTarget.h" 38 #include "core/platform/Timer.h" 39 #include "core/platform/mediastream/RTCPeerConnectionHandler.h" 40 #include "core/platform/mediastream/RTCPeerConnectionHandlerClient.h" 41 #include "modules/mediastream/MediaStream.h" 42 #include "modules/mediastream/RTCIceCandidate.h" 43 #include "wtf/RefCounted.h" 44 45 namespace WebCore { 46 47 class ExceptionState; 48 class MediaConstraints; 49 class MediaStreamTrack; 50 class RTCConfiguration; 51 class RTCDTMFSender; 52 class RTCDataChannel; 53 class RTCErrorCallback; 54 class RTCSessionDescription; 55 class RTCSessionDescriptionCallback; 56 class RTCStatsCallback; 57 class VoidCallback; 58 59 class RTCPeerConnection : public RefCounted<RTCPeerConnection>, public ScriptWrappable, public RTCPeerConnectionHandlerClient, public EventTarget, public ActiveDOMObject { 60 public: 61 static PassRefPtr<RTCPeerConnection> create(ScriptExecutionContext*, const Dictionary& rtcConfiguration, const Dictionary& mediaConstraints, ExceptionState&); 62 ~RTCPeerConnection(); 63 64 void createOffer(PassRefPtr<RTCSessionDescriptionCallback>, PassRefPtr<RTCErrorCallback>, const Dictionary& mediaConstraints, ExceptionState&); 65 66 void createAnswer(PassRefPtr<RTCSessionDescriptionCallback>, PassRefPtr<RTCErrorCallback>, const Dictionary& mediaConstraints, ExceptionState&); 67 68 void setLocalDescription(PassRefPtr<RTCSessionDescription>, PassRefPtr<VoidCallback>, PassRefPtr<RTCErrorCallback>, ExceptionState&); 69 PassRefPtr<RTCSessionDescription> localDescription(ExceptionState&); 70 71 void setRemoteDescription(PassRefPtr<RTCSessionDescription>, PassRefPtr<VoidCallback>, PassRefPtr<RTCErrorCallback>, ExceptionState&); 72 PassRefPtr<RTCSessionDescription> remoteDescription(ExceptionState&); 73 74 String signalingState() const; 75 76 void updateIce(const Dictionary& rtcConfiguration, const Dictionary& mediaConstraints, ExceptionState&); 77 78 void addIceCandidate(RTCIceCandidate*, ExceptionState&); 79 80 String iceGatheringState() const; 81 82 String iceConnectionState() const; 83 84 MediaStreamVector getLocalStreams() const; 85 86 MediaStreamVector getRemoteStreams() const; 87 88 MediaStream* getStreamById(const String& streamId); 89 90 void addStream(PassRefPtr<MediaStream>, const Dictionary& mediaConstraints, ExceptionState&); 91 92 void removeStream(PassRefPtr<MediaStream>, ExceptionState&); 93 94 void getStats(PassRefPtr<RTCStatsCallback> successCallback, PassRefPtr<MediaStreamTrack> selector); 95 96 PassRefPtr<RTCDataChannel> createDataChannel(String label, const Dictionary& dataChannelDict, ExceptionState&); 97 98 PassRefPtr<RTCDTMFSender> createDTMFSender(PassRefPtr<MediaStreamTrack>, ExceptionState&); 99 100 void close(ExceptionState&); 101 102 DEFINE_ATTRIBUTE_EVENT_LISTENER(negotiationneeded); 103 DEFINE_ATTRIBUTE_EVENT_LISTENER(icecandidate); 104 DEFINE_ATTRIBUTE_EVENT_LISTENER(signalingstatechange); 105 DEFINE_ATTRIBUTE_EVENT_LISTENER(addstream); 106 DEFINE_ATTRIBUTE_EVENT_LISTENER(removestream); 107 DEFINE_ATTRIBUTE_EVENT_LISTENER(iceconnectionstatechange); 108 DEFINE_ATTRIBUTE_EVENT_LISTENER(datachannel); 109 110 // RTCPeerConnectionHandlerClient 111 virtual void negotiationNeeded() OVERRIDE; 112 virtual void didGenerateIceCandidate(WebKit::WebRTCICECandidate) OVERRIDE; 113 virtual void didChangeSignalingState(SignalingState) OVERRIDE; 114 virtual void didChangeIceGatheringState(IceGatheringState) OVERRIDE; 115 virtual void didChangeIceConnectionState(IceConnectionState) OVERRIDE; 116 virtual void didAddRemoteStream(PassRefPtr<MediaStreamDescriptor>) OVERRIDE; 117 virtual void didRemoveRemoteStream(MediaStreamDescriptor*) OVERRIDE; 118 virtual void didAddRemoteDataChannel(PassOwnPtr<RTCDataChannelHandler>) OVERRIDE; 119 120 // EventTarget 121 virtual const AtomicString& interfaceName() const OVERRIDE; 122 virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE; 123 124 // ActiveDOMObject 125 virtual void stop() OVERRIDE; 126 virtual bool hasPendingActivity() const OVERRIDE { return !m_stopped; } 127 128 using RefCounted<RTCPeerConnection>::ref; 129 using RefCounted<RTCPeerConnection>::deref; 130 131 private: 132 RTCPeerConnection(ScriptExecutionContext*, PassRefPtr<RTCConfiguration>, PassRefPtr<MediaConstraints>, ExceptionState&); 133 134 static PassRefPtr<RTCConfiguration> parseConfiguration(const Dictionary& configuration, ExceptionState&); 135 void scheduleDispatchEvent(PassRefPtr<Event>); 136 void scheduledEventTimerFired(Timer<RTCPeerConnection>*); 137 bool hasLocalStreamWithTrackId(const String& trackId); 138 139 // EventTarget implementation. 140 virtual EventTargetData* eventTargetData(); 141 virtual EventTargetData* ensureEventTargetData(); 142 virtual void refEventTarget() { ref(); } 143 virtual void derefEventTarget() { deref(); } 144 EventTargetData m_eventTargetData; 145 146 void changeSignalingState(SignalingState); 147 void changeIceGatheringState(IceGatheringState); 148 void changeIceConnectionState(IceConnectionState); 149 150 SignalingState m_signalingState; 151 IceGatheringState m_iceGatheringState; 152 IceConnectionState m_iceConnectionState; 153 154 MediaStreamVector m_localStreams; 155 MediaStreamVector m_remoteStreams; 156 157 Vector<RefPtr<RTCDataChannel> > m_dataChannels; 158 159 OwnPtr<RTCPeerConnectionHandler> m_peerHandler; 160 161 Timer<RTCPeerConnection> m_scheduledEventTimer; 162 Vector<RefPtr<Event> > m_scheduledEvents; 163 164 bool m_stopped; 165 }; 166 167 } // namespace WebCore 168 169 #endif // RTCPeerConnection_h 170
