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      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 #if !defined(__has_feature) || !__has_feature(objc_arc)
     29 #error "This file requires ARC support."
     30 #endif
     31 
     32 #import "RTCPeerConnectionObserver.h"
     33 
     34 #import "RTCDataChannel+Internal.h"
     35 #import "RTCEnumConverter.h"
     36 #import "RTCICECandidate+Internal.h"
     37 #import "RTCMediaStream+Internal.h"
     38 
     39 namespace webrtc {
     40 
     41 RTCPeerConnectionObserver::RTCPeerConnectionObserver(
     42     RTCPeerConnection* peerConnection) {
     43   _peerConnection = peerConnection;
     44 }
     45 
     46 RTCPeerConnectionObserver::~RTCPeerConnectionObserver() {
     47 }
     48 
     49 void RTCPeerConnectionObserver::OnSignalingChange(
     50     PeerConnectionInterface::SignalingState new_state) {
     51   RTCSignalingState state =
     52       [RTCEnumConverter convertSignalingStateToObjC:new_state];
     53   [_peerConnection.delegate peerConnection:_peerConnection
     54                      signalingStateChanged:state];
     55 }
     56 
     57 void RTCPeerConnectionObserver::OnAddStream(MediaStreamInterface* stream) {
     58   RTCMediaStream* mediaStream =
     59       [[RTCMediaStream alloc] initWithMediaStream:stream];
     60   [_peerConnection.delegate peerConnection:_peerConnection
     61                                addedStream:mediaStream];
     62 }
     63 
     64 void RTCPeerConnectionObserver::OnRemoveStream(MediaStreamInterface* stream) {
     65   RTCMediaStream* mediaStream =
     66       [[RTCMediaStream alloc] initWithMediaStream:stream];
     67   [_peerConnection.delegate peerConnection:_peerConnection
     68                              removedStream:mediaStream];
     69 }
     70 
     71 void RTCPeerConnectionObserver::OnDataChannel(
     72     DataChannelInterface* data_channel) {
     73   RTCDataChannel* dataChannel =
     74       [[RTCDataChannel alloc] initWithDataChannel:data_channel];
     75   [_peerConnection.delegate peerConnection:_peerConnection
     76                         didOpenDataChannel:dataChannel];
     77 }
     78 
     79 void RTCPeerConnectionObserver::OnRenegotiationNeeded() {
     80   id<RTCPeerConnectionDelegate> delegate = _peerConnection.delegate;
     81   [delegate peerConnectionOnRenegotiationNeeded:_peerConnection];
     82 }
     83 
     84 void RTCPeerConnectionObserver::OnIceConnectionChange(
     85     PeerConnectionInterface::IceConnectionState new_state) {
     86   RTCICEConnectionState state =
     87       [RTCEnumConverter convertIceConnectionStateToObjC:new_state];
     88   [_peerConnection.delegate peerConnection:_peerConnection
     89                       iceConnectionChanged:state];
     90 }
     91 
     92 void RTCPeerConnectionObserver::OnIceGatheringChange(
     93     PeerConnectionInterface::IceGatheringState new_state) {
     94   RTCICEGatheringState state =
     95       [RTCEnumConverter convertIceGatheringStateToObjC:new_state];
     96   [_peerConnection.delegate peerConnection:_peerConnection
     97                        iceGatheringChanged:state];
     98 }
     99 
    100 void RTCPeerConnectionObserver::OnIceCandidate(
    101     const IceCandidateInterface* candidate) {
    102   RTCICECandidate* iceCandidate =
    103       [[RTCICECandidate alloc] initWithCandidate:candidate];
    104   [_peerConnection.delegate peerConnection:_peerConnection
    105                            gotICECandidate:iceCandidate];
    106 }
    107 
    108 }  // namespace webrtc
    109