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      1 /*
      2  * Copyright (C) 2012 Google AB. 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 RTCPeerConnectionHandlerClient_h
     32 #define RTCPeerConnectionHandlerClient_h
     33 
     34 #include "wtf/PassRefPtr.h"
     35 
     36 namespace blink {
     37 class WebRTCICECandidate;
     38 }
     39 
     40 namespace WebCore {
     41 
     42 class MediaStreamDescriptor;
     43 class RTCDataChannelHandler;
     44 
     45 class RTCPeerConnectionHandlerClient {
     46 public:
     47     enum SignalingState {
     48         SignalingStateStable = 1,
     49         SignalingStateHaveLocalOffer = 2,
     50         SignalingStateHaveRemoteOffer = 3,
     51         SignalingStateHaveLocalPrAnswer = 4,
     52         SignalingStateHaveRemotePrAnswer = 5,
     53         SignalingStateClosed = 6,
     54     };
     55 
     56     enum IceConnectionState {
     57         IceConnectionStateNew = 1,
     58         IceConnectionStateChecking = 2,
     59         IceConnectionStateConnected = 3,
     60         IceConnectionStateCompleted = 4,
     61         IceConnectionStateFailed = 5,
     62         IceConnectionStateDisconnected = 6,
     63         IceConnectionStateClosed = 7
     64     };
     65 
     66     enum IceGatheringState {
     67         IceGatheringStateNew = 1,
     68         IceGatheringStateGathering = 2,
     69         IceGatheringStateComplete = 3
     70     };
     71 
     72     virtual ~RTCPeerConnectionHandlerClient() { }
     73 
     74     virtual void negotiationNeeded() = 0;
     75     virtual void didGenerateIceCandidate(blink::WebRTCICECandidate) = 0;
     76     virtual void didChangeSignalingState(SignalingState) = 0;
     77     virtual void didChangeIceGatheringState(IceGatheringState) = 0;
     78     virtual void didChangeIceConnectionState(IceConnectionState) = 0;
     79     virtual void didAddRemoteStream(PassRefPtr<MediaStreamDescriptor>) = 0;
     80     virtual void didRemoveRemoteStream(MediaStreamDescriptor*) = 0;
     81     virtual void didAddRemoteDataChannel(PassOwnPtr<RTCDataChannelHandler>) = 0;
     82 };
     83 
     84 } // namespace WebCore
     85 
     86 #endif // RTCPeerConnectionHandlerClient_h
     87