1/*
2 * libjingle
3 * Copyright 2013, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "talk/app/webrtc/peerconnectioninterface.h"
29
30#import "RTCPeerConnection.h"
31#import "RTCPeerConnectionDelegate.h"
32
33// These objects are created by RTCPeerConnectionFactory to wrap an
34// id<RTCPeerConnectionDelegate> and call methods on that interface.
35
36namespace webrtc {
37
38class RTCPeerConnectionObserver : public PeerConnectionObserver {
39
40 public:
41  explicit RTCPeerConnectionObserver(id<RTCPeerConnectionDelegate> delegate);
42
43  void SetPeerConnection(RTCPeerConnection *peerConnection);
44
45  virtual void OnError() OVERRIDE;
46
47  // Triggered when the SignalingState changed.
48  virtual void OnSignalingChange(
49      PeerConnectionInterface::SignalingState new_state) OVERRIDE;
50
51  // Triggered when media is received on a new stream from remote peer.
52  virtual void OnAddStream(MediaStreamInterface* stream) OVERRIDE;
53
54  // Triggered when a remote peer close a stream.
55  virtual void OnRemoveStream(MediaStreamInterface* stream) OVERRIDE;
56
57  // Triggered when a remote peer open a data channel.
58  virtual void OnDataChannel(DataChannelInterface* data_channel) OVERRIDE;
59
60  // Triggered when renegotation is needed, for example the ICE has restarted.
61  virtual void OnRenegotiationNeeded() OVERRIDE;
62
63  // Called any time the ICEConnectionState changes
64  virtual void OnIceConnectionChange(
65      PeerConnectionInterface::IceConnectionState new_state) OVERRIDE;
66
67  // Called any time the ICEGatheringState changes
68  virtual void OnIceGatheringChange(
69      PeerConnectionInterface::IceGatheringState new_state) OVERRIDE;
70
71  // New Ice candidate have been found.
72  virtual void OnIceCandidate(const IceCandidateInterface* candidate) OVERRIDE;
73
74 private:
75  id<RTCPeerConnectionDelegate> _delegate;
76  RTCPeerConnection *_peerConnection;
77};
78
79} // namespace webrtc
80