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 "modules/EventTargetModules.h" 38 #include "modules/mediastream/MediaStream.h" 39 #include "modules/mediastream/RTCIceCandidate.h" 40 #include "platform/AsyncMethodRunner.h" 41 #include "public/platform/WebMediaConstraints.h" 42 #include "public/platform/WebRTCPeerConnectionHandler.h" 43 #include "public/platform/WebRTCPeerConnectionHandlerClient.h" 44 #include "wtf/RefCounted.h" 45 46 namespace WebCore { 47 48 class ExceptionState; 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 FINAL : public RefCountedWillBeRefCountedGarbageCollected<RTCPeerConnection>, public ScriptWrappable, public blink::WebRTCPeerConnectionHandlerClient, public EventTargetWithInlineData, public ActiveDOMObject { 60 REFCOUNTED_EVENT_TARGET(RTCPeerConnection); 61 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(RTCPeerConnection); 62 public: 63 static PassRefPtrWillBeRawPtr<RTCPeerConnection> create(ExecutionContext*, const Dictionary& rtcConfiguration, const Dictionary& mediaConstraints, ExceptionState&); 64 virtual ~RTCPeerConnection(); 65 66 void createOffer(PassOwnPtr<RTCSessionDescriptionCallback>, PassOwnPtr<RTCErrorCallback>, const Dictionary& mediaConstraints, ExceptionState&); 67 68 void createAnswer(PassOwnPtr<RTCSessionDescriptionCallback>, PassOwnPtr<RTCErrorCallback>, const Dictionary& mediaConstraints, ExceptionState&); 69 70 void setLocalDescription(PassRefPtrWillBeRawPtr<RTCSessionDescription>, PassOwnPtr<VoidCallback>, PassOwnPtr<RTCErrorCallback>, ExceptionState&); 71 PassRefPtrWillBeRawPtr<RTCSessionDescription> localDescription(ExceptionState&); 72 73 void setRemoteDescription(PassRefPtrWillBeRawPtr<RTCSessionDescription>, PassOwnPtr<VoidCallback>, PassOwnPtr<RTCErrorCallback>, ExceptionState&); 74 PassRefPtrWillBeRawPtr<RTCSessionDescription> remoteDescription(ExceptionState&); 75 76 String signalingState() const; 77 78 void updateIce(const Dictionary& rtcConfiguration, const Dictionary& mediaConstraints, ExceptionState&); 79 80 // DEPRECATED 81 void addIceCandidate(RTCIceCandidate*, ExceptionState&); 82 83 void addIceCandidate(RTCIceCandidate*, PassOwnPtr<VoidCallback>, PassOwnPtr<RTCErrorCallback>, ExceptionState&); 84 85 String iceGatheringState() const; 86 87 String iceConnectionState() const; 88 89 MediaStreamVector getLocalStreams() const; 90 91 MediaStreamVector getRemoteStreams() const; 92 93 MediaStream* getStreamById(const String& streamId); 94 95 void addStream(PassRefPtrWillBeRawPtr<MediaStream>, const Dictionary& mediaConstraints, ExceptionState&); 96 97 void removeStream(PassRefPtrWillBeRawPtr<MediaStream>, ExceptionState&); 98 99 void getStats(PassOwnPtr<RTCStatsCallback> successCallback, PassRefPtr<MediaStreamTrack> selector); 100 101 PassRefPtrWillBeRawPtr<RTCDataChannel> createDataChannel(String label, const Dictionary& dataChannelDict, ExceptionState&); 102 103 PassRefPtrWillBeRawPtr<RTCDTMFSender> createDTMFSender(PassRefPtrWillBeRawPtr<MediaStreamTrack>, ExceptionState&); 104 105 void close(ExceptionState&); 106 107 // We allow getStats after close, but not other calls or callbacks. 108 bool shouldFireDefaultCallbacks() { return !m_closed && !m_stopped; } 109 bool shouldFireGetStatsCallback() { return !m_stopped; } 110 111 DEFINE_ATTRIBUTE_EVENT_LISTENER(negotiationneeded); 112 DEFINE_ATTRIBUTE_EVENT_LISTENER(icecandidate); 113 DEFINE_ATTRIBUTE_EVENT_LISTENER(signalingstatechange); 114 DEFINE_ATTRIBUTE_EVENT_LISTENER(addstream); 115 DEFINE_ATTRIBUTE_EVENT_LISTENER(removestream); 116 DEFINE_ATTRIBUTE_EVENT_LISTENER(iceconnectionstatechange); 117 DEFINE_ATTRIBUTE_EVENT_LISTENER(datachannel); 118 119 // blink::WebRTCPeerConnectionHandlerClient 120 virtual void negotiationNeeded() OVERRIDE; 121 virtual void didGenerateICECandidate(const blink::WebRTCICECandidate&) OVERRIDE; 122 virtual void didChangeSignalingState(SignalingState) OVERRIDE; 123 virtual void didChangeICEGatheringState(ICEGatheringState) OVERRIDE; 124 virtual void didChangeICEConnectionState(ICEConnectionState) OVERRIDE; 125 virtual void didAddRemoteStream(const blink::WebMediaStream&) OVERRIDE; 126 virtual void didRemoveRemoteStream(const blink::WebMediaStream&) OVERRIDE; 127 virtual void didAddRemoteDataChannel(blink::WebRTCDataChannelHandler*) OVERRIDE; 128 virtual void releasePeerConnectionHandler() OVERRIDE; 129 130 // EventTarget 131 virtual const AtomicString& interfaceName() const OVERRIDE; 132 virtual ExecutionContext* executionContext() const OVERRIDE; 133 134 // ActiveDOMObject 135 virtual void suspend() OVERRIDE; 136 virtual void resume() OVERRIDE; 137 virtual void stop() OVERRIDE; 138 // We keep the this object alive until either stopped or closed. 139 virtual bool hasPendingActivity() const OVERRIDE 140 { 141 return !m_closed && !m_stopped; 142 } 143 144 virtual void trace(Visitor*) OVERRIDE; 145 146 private: 147 RTCPeerConnection(ExecutionContext*, PassRefPtr<RTCConfiguration>, blink::WebMediaConstraints, ExceptionState&); 148 149 static PassRefPtr<RTCConfiguration> parseConfiguration(const Dictionary& configuration, ExceptionState&); 150 void scheduleDispatchEvent(PassRefPtrWillBeRawPtr<Event>); 151 void dispatchScheduledEvent(); 152 bool hasLocalStreamWithTrackId(const String& trackId); 153 154 void changeSignalingState(blink::WebRTCPeerConnectionHandlerClient::SignalingState); 155 void changeIceGatheringState(blink::WebRTCPeerConnectionHandlerClient::ICEGatheringState); 156 void changeIceConnectionState(blink::WebRTCPeerConnectionHandlerClient::ICEConnectionState); 157 158 SignalingState m_signalingState; 159 ICEGatheringState m_iceGatheringState; 160 ICEConnectionState m_iceConnectionState; 161 162 MediaStreamVector m_localStreams; 163 MediaStreamVector m_remoteStreams; 164 165 WillBeHeapVector<RefPtrWillBeMember<RTCDataChannel> > m_dataChannels; 166 167 OwnPtr<blink::WebRTCPeerConnectionHandler> m_peerHandler; 168 169 AsyncMethodRunner<RTCPeerConnection> m_dispatchScheduledEventRunner; 170 WillBeHeapVector<RefPtrWillBeMember<Event> > m_scheduledEvents; 171 172 bool m_stopped; 173 bool m_closed; 174 }; 175 176 } // namespace WebCore 177 178 #endif // RTCPeerConnection_h 179
