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      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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this 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 WebRTCPeerConnectionHandlerClient_h
     32 #define WebRTCPeerConnectionHandlerClient_h
     33 
     34 namespace blink {
     35 class WebMediaStream;
     36 class WebRTCDataChannelHandler;
     37 class WebRTCICECandidate;
     38 
     39 class WebRTCPeerConnectionHandlerClient {
     40 public:
     41     enum SignalingState {
     42         SignalingStateStable = 1,
     43         SignalingStateHaveLocalOffer = 2,
     44         SignalingStateHaveRemoteOffer = 3,
     45         SignalingStateHaveLocalPrAnswer = 4,
     46         SignalingStateHaveRemotePrAnswer = 5,
     47         SignalingStateClosed = 6,
     48     };
     49 
     50     enum ICEConnectionState {
     51         ICEConnectionStateNew = 1,
     52         ICEConnectionStateChecking = 2,
     53         ICEConnectionStateConnected = 3,
     54         ICEConnectionStateCompleted = 4,
     55         ICEConnectionStateFailed = 5,
     56         ICEConnectionStateDisconnected = 6,
     57         ICEConnectionStateClosed = 7,
     58 
     59         // DEPRECATED
     60         ICEConnectionStateStarting = 1,
     61     };
     62 
     63     enum ICEGatheringState {
     64         ICEGatheringStateNew = 1,
     65         ICEGatheringStateGathering = 2,
     66         ICEGatheringStateComplete = 3
     67     };
     68 
     69     virtual ~WebRTCPeerConnectionHandlerClient() { }
     70 
     71     virtual void negotiationNeeded() = 0;
     72     virtual void didGenerateICECandidate(const WebRTCICECandidate&) = 0;
     73     virtual void didChangeSignalingState(SignalingState) = 0;
     74     virtual void didChangeICEGatheringState(ICEGatheringState) = 0;
     75     virtual void didChangeICEConnectionState(ICEConnectionState) = 0;
     76     virtual void didAddRemoteStream(const WebMediaStream&) = 0;
     77     virtual void didRemoveRemoteStream(const WebMediaStream&) = 0;
     78     virtual void didAddRemoteDataChannel(WebRTCDataChannelHandler*) = 0;
     79     virtual void releasePeerConnectionHandler() = 0;
     80 };
     81 
     82 } // namespace blink
     83 
     84 #endif // WebRTCPeerConnectionHandlerClient_h
     85