Merge branch 'voip' into develop

Conflicts:
	webclient/room/room-controller.js

7 files changed, 379 insertions, 3 deletions

diff --git a/webclient/app.js b/webclient/app.js
index 2d6624ceec..02695c3ae6 100644
--- a/webclient/app.js
+++ b/webclient/app.js
@@ -24,6 +24,8 @@ var matrixWebClient = angular.module('matrixWebClient', [
     'SettingsController',
     'UserController',
     'matrixService',
+    'matrixPhoneService',
+    'MatrixCall',
     'eventStreamService',
     'eventHandlerService',
     'infinite-scroll'
diff --git a/webclient/components/matrix/event-handler-service.js b/webclient/components/matrix/event-handler-service.js
index df61429db5..2f7580d682 100644
--- a/webclient/components/matrix/event-handler-service.js
+++ b/webclient/components/matrix/event-handler-service.js
@@ -95,7 +95,6 @@ angular.module('eventHandlerService', [])
         $rootScope.$broadcast(PRESENCE_EVENT, event, isLiveEvent);
     };
     
-    
     return {
         MSG_EVENT: MSG_EVENT,
         MEMBER_EVENT: MEMBER_EVENT,
diff --git a/webclient/components/matrix/matrix-call.js b/webclient/components/matrix/matrix-call.js
new file mode 100644
index 0000000000..3aab6413fc
--- /dev/null
+++ b/webclient/components/matrix/matrix-call.js
@@ -0,0 +1,264 @@
+/*
+Copyright 2014 matrix.org
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+'use strict';
+
+var forAllVideoTracksOnStream = function(s, f) {
+    var tracks = s.getVideoTracks();
+    for (var i = 0; i < tracks.length; i++) {
+        f(tracks[i]);
+    }
+}
+
+var forAllAudioTracksOnStream = function(s, f) {
+    var tracks = s.getAudioTracks();
+    for (var i = 0; i < tracks.length; i++) {
+        f(tracks[i]);
+    }
+}
+
+var forAllTracksOnStream = function(s, f) {
+    forAllVideoTracksOnStream(s, f);
+    forAllAudioTracksOnStream(s, f);
+}
+
+angular.module('MatrixCall', [])
+.factory('MatrixCall', ['matrixService', 'matrixPhoneService', function MatrixCallFactory(matrixService, matrixPhoneService) {
+    var MatrixCall = function(room_id) {
+        this.room_id = room_id;
+        this.call_id = "c" + new Date().getTime();
+        this.state = 'fledgling';
+    }
+
+    navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia;
+
+    window.RTCPeerConnection = window.RTCPeerConnection || window.webkitRTCPeerConnection || window.mozRTCPeerConnection;
+
+    MatrixCall.prototype.placeCall = function() {
+        self = this;
+        matrixPhoneService.callPlaced(this);
+        navigator.getUserMedia({audio: true, video: false}, function(s) { self.gotUserMediaForInvite(s); }, function(e) { self.getUserMediaFailed(e); });
+        self.state = 'wait_local_media';
+    };
+
+    MatrixCall.prototype.initWithInvite = function(msg) {
+        this.msg = msg;
+        this.peerConn = new window.RTCPeerConnection({"iceServers":[{"urls":"stun:stun.l.google.com:19302"}]})
+        self= this;
+        this.peerConn.oniceconnectionstatechange = function() { self.onIceConnectionStateChanged(); };
+        this.peerConn.onicecandidate = function(c) { self.gotLocalIceCandidate(c); };
+        this.peerConn.onsignalingstatechange = function() { self.onSignallingStateChanged(); };
+        this.peerConn.onaddstream = function(s) { self.onAddStream(s); };
+        this.peerConn.setRemoteDescription(new RTCSessionDescription(this.msg.offer), self.onSetRemoteDescriptionSuccess, self.onSetRemoteDescriptionError);
+        this.state = 'ringing';
+    };
+
+    MatrixCall.prototype.answer = function() {
+        console.trace("Answering call "+this.call_id);
+        self = this;
+        navigator.getUserMedia({audio: true, video: false}, function(s) { self.gotUserMediaForAnswer(s); }, function(e) { self.getUserMediaFailed(e); });
+        this.state = 'wait_local_media';
+    };
+
+    MatrixCall.prototype.hangup = function() {
+        console.trace("Ending call "+this.call_id);
+
+        forAllTracksOnStream(this.localAVStream, function(t) {
+            t.stop();
+        });
+        forAllTracksOnStream(this.remoteAVStream, function(t) {
+            t.stop();
+        });
+
+        var content = {
+            msgtype: "m.call.hangup",
+            version: 0,
+            call_id: this.call_id,
+        };
+        matrixService.sendMessage(this.room_id, undefined, content).then(this.messageSent, this.messageSendFailed);
+        this.state = 'ended';
+    };
+
+    MatrixCall.prototype.gotUserMediaForInvite = function(stream) {
+        this.localAVStream = stream;
+        var audioTracks = stream.getAudioTracks();
+        for (var i = 0; i < audioTracks.length; i++) {
+            audioTracks[i].enabled = true;
+        }
+        this.peerConn = new window.RTCPeerConnection({"iceServers":[{"urls":"stun:stun.l.google.com:19302"}]})
+        self = this;
+        this.peerConn.oniceconnectionstatechange = function() { self.onIceConnectionStateChanged(); };
+        this.peerConn.onsignalingstatechange = function() { self.onSignallingStateChanged(); };
+        this.peerConn.onicecandidate = function(c) { self.gotLocalIceCandidate(c); };
+        this.peerConn.onaddstream = function(s) { self.onAddStream(s); };
+        this.peerConn.addStream(stream);
+        this.peerConn.createOffer(function(d) {
+            self.gotLocalOffer(d);
+        }, function(e) {
+            self.getLocalOfferFailed(e);
+        });
+        this.state = 'create_offer';
+    };
+
+    MatrixCall.prototype.gotUserMediaForAnswer = function(stream) {
+        this.localAVStream = stream;
+        var audioTracks = stream.getAudioTracks();
+        for (var i = 0; i < audioTracks.length; i++) {
+            audioTracks[i].enabled = true;
+        }
+        this.peerConn.addStream(stream);
+        self = this;
+        var constraints = {
+            'mandatory': {
+                'OfferToReceiveAudio': true,
+                'OfferToReceiveVideo': false
+            },
+        };
+        this.peerConn.createAnswer(function(d) { self.createdAnswer(d); }, function(e) {}, constraints);
+        this.state = 'create_answer';
+    };
+
+    MatrixCall.prototype.gotLocalIceCandidate = function(event) {
+        console.trace(event);
+        if (event.candidate) {
+            var content = {
+                msgtype: "m.call.candidate",
+                version: 0,
+                call_id: this.call_id,
+                candidate: event.candidate
+            };
+            matrixService.sendMessage(this.room_id, undefined, content).then(this.messageSent, this.messageSendFailed);
+        }
+    }
+
+    MatrixCall.prototype.gotRemoteIceCandidate = function(cand) {
+        console.trace("Got ICE candidate from remote: "+cand);
+        var candidateObject = new RTCIceCandidate({
+            sdpMLineIndex: cand.label,
+            candidate: cand.candidate
+        });
+        this.peerConn.addIceCandidate(candidateObject, function() {}, function(e) {});
+    };
+
+    MatrixCall.prototype.receivedAnswer = function(msg) {
+        this.peerConn.setRemoteDescription(new RTCSessionDescription(msg.answer), self.onSetRemoteDescriptionSuccess, self.onSetRemoteDescriptionError);
+        this.state = 'connecting';
+    };
+
+    MatrixCall.prototype.gotLocalOffer = function(description) {
+        console.trace("Created offer: "+description);
+        this.peerConn.setLocalDescription(description);
+
+        var content = {
+            msgtype: "m.call.invite",
+            version: 0,
+            call_id: this.call_id,
+            offer: description
+        };
+        matrixService.sendMessage(this.room_id, undefined, content).then(this.messageSent, this.messageSendFailed);
+        this.state = 'invite_sent';
+    };
+
+    MatrixCall.prototype.createdAnswer = function(description) {
+        console.trace("Created answer: "+description);
+        this.peerConn.setLocalDescription(description);
+        var content = {
+            msgtype: "m.call.answer",
+            version: 0,
+            call_id: this.call_id,
+            answer: description
+        };
+        matrixService.sendMessage(this.room_id, undefined, content).then(this.messageSent, this.messageSendFailed);
+        this.state = 'connecting';
+    };
+
+    MatrixCall.prototype.messageSent = function() {
+    };
+    
+    MatrixCall.prototype.messageSendFailed = function(error) {
+    };
+
+    MatrixCall.prototype.getLocalOfferFailed = function(error) {
+        this.onError("Failed to start audio for call!");
+    };
+
+    MatrixCall.prototype.getUserMediaFailed = function() {
+        this.onError("Couldn't start capturing audio! Is your microphone set up?");
+    };
+
+    MatrixCall.prototype.onIceConnectionStateChanged = function() {
+        console.trace("Ice connection state changed to: "+this.peerConn.iceConnectionState);
+        // ideally we'd consider the call to be connected when we get media but chrome doesn't implement nay of the 'onstarted' events yet
+        if (this.peerConn.iceConnectionState == 'completed' || this.peerConn.iceConnectionState == 'connected') {
+            this.state = 'connected';
+        }
+    };
+
+    MatrixCall.prototype.onSignallingStateChanged = function() {
+        console.trace("Signalling state changed to: "+this.peerConn.signalingState);
+    };
+
+    MatrixCall.prototype.onSetRemoteDescriptionSuccess = function() {
+        console.trace("Set remote description");
+    };
+    
+    MatrixCall.prototype.onSetRemoteDescriptionError = function(e) {
+        console.trace("Failed to set remote description"+e);
+    };
+
+    MatrixCall.prototype.onAddStream = function(event) {
+        console.trace("Stream added"+event);
+
+        var s = event.stream;
+
+        this.remoteAVStream = s;
+
+        var self = this;
+        forAllTracksOnStream(s, function(t) {
+            // not currently implemented in chrome
+            t.onstarted = self.onRemoteStreamTrackStarted;
+        });
+
+        // not currently implemented in chrome
+        event.stream.onstarted = this.onRemoteStreamStarted;
+        var player = new Audio();
+        player.src = URL.createObjectURL(s);
+        player.play();
+    };
+
+    MatrixCall.prototype.onRemoteStreamStarted = function(event) {
+        this.state = 'connected';
+    };
+
+    MatrixCall.prototype.onRemoteStreamTrackStarted = function(event) {
+        this.state = 'connected';
+    };
+
+    MatrixCall.prototype.onHangupReceived = function() {
+        this.state = 'ended';
+
+        forAllTracksOnStream(this.localAVStream, function(t) {
+            t.stop();
+        });
+        forAllTracksOnStream(this.remoteAVStream, function(t) {
+            t.stop();
+        });
+
+        this.onHangup();
+    };
+
+    return MatrixCall;
+}]);
diff --git a/webclient/components/matrix/matrix-phone-service.js b/webclient/components/matrix/matrix-phone-service.js
new file mode 100644
index 0000000000..7f1ff531c4
--- /dev/null
+++ b/webclient/components/matrix/matrix-phone-service.js
@@ -0,0 +1,68 @@
+/*
+Copyright 2014 matrix.org
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+'use strict';
+
+angular.module('matrixPhoneService', [])
+.factory('matrixPhoneService', ['$rootScope', '$injector', 'matrixService', 'eventHandlerService', function MatrixPhoneService($rootScope, $injector, matrixService, eventHandlerService) {
+    var matrixPhoneService = function() {
+    };
+
+    matrixPhoneService.CALL_EVENT = "CALL_EVENT";
+    matrixPhoneService.allCalls = {};
+
+    matrixPhoneService.callPlaced = function(call) {
+        matrixPhoneService.allCalls[call.call_id] = call;
+    };
+
+    $rootScope.$on(eventHandlerService.MSG_EVENT, function(ngEvent, event, isLive) {
+        if (!isLive) return; // until matrix supports expiring messages
+        if (event.user_id == matrixService.config().user_id) return;
+        var msg = event.content;
+        if (msg.msgtype == 'm.call.invite') {
+            var MatrixCall = $injector.get('MatrixCall');
+            var call = new MatrixCall(event.room_id);
+            call.call_id = msg.call_id;
+            call.initWithInvite(msg);
+            matrixPhoneService.allCalls[call.call_id] = call;
+            $rootScope.$broadcast(matrixPhoneService.CALL_EVENT, call);
+        } else if (msg.msgtype == 'm.call.answer') {
+            var call = matrixPhoneService.allCalls[msg.call_id];
+            if (!call) {
+                console.trace("Got answer for unknown call ID "+msg.call_id);
+                return;
+            }
+            call.receivedAnswer(msg);
+        } else if (msg.msgtype == 'm.call.candidate') {
+            var call = matrixPhoneService.allCalls[msg.call_id];
+            if (!call) {
+                console.trace("Got candidate for unknown call ID "+msg.call_id);
+                return;
+            }
+            call.gotRemoteIceCandidate(msg.candidate);
+        } else if (msg.msgtype == 'm.call.hangup') {
+            var call = matrixPhoneService.allCalls[msg.call_id];
+            if (!call) {
+                console.trace("Got hangup for unknown call ID "+msg.call_id);
+                return;
+            }
+            call.onHangupReceived();
+            matrixPhoneService.allCalls[msg.call_id] = undefined;
+        }
+    });
+    
+    return matrixPhoneService;
+}]);
diff --git a/webclient/index.html b/webclient/index.html
index 16f0e8ac5f..5faf165626 100644
--- a/webclient/index.html
+++ b/webclient/index.html
@@ -26,6 +26,8 @@
     <script src="settings/settings-controller.js"></script>
     <script src="user/user-controller.js"></script>
     <script src="components/matrix/matrix-service.js"></script>
+    <script src="components/matrix/matrix-call.js"></script>
+    <script src="components/matrix/matrix-phone-service.js"></script>
     <script src="components/matrix/event-stream-service.js"></script>
     <script src="components/matrix/event-handler-service.js"></script>
     <script src="components/matrix/presence-service.js"></script>
diff --git a/webclient/room/room-controller.js b/webclient/room/room-controller.js
index 71b6720604..15710d2ba3 100644
--- a/webclient/room/room-controller.js
+++ b/webclient/room/room-controller.js
@@ -15,8 +15,8 @@ limitations under the License.
 */
 
 angular.module('RoomController', ['ngSanitize', 'mFileInput'])
-.controller('RoomController', ['$scope', '$timeout', '$routeParams', '$location', '$rootScope', 'matrixService', 'eventHandlerService', 'mFileUpload',
-                               function($scope, $timeout, $routeParams, $location, $rootScope, matrixService, eventHandlerService, mFileUpload) {
+.controller('RoomController', ['$scope', '$timeout', '$routeParams', '$location', '$rootScope', 'matrixService', 'eventHandlerService', 'mFileUpload', 'matrixPhoneService', 'MatrixCall',
+                               function($scope, $timeout, $routeParams, $location, $rootScope, matrixService, eventHandlerService, mFileUpload, matrixPhoneService, MatrixCall) {
    'use strict';
     var MESSAGES_PER_PAGINATION = 30;
     var THUMBNAIL_SIZE = 320;
@@ -82,6 +82,13 @@ angular.module('RoomController', ['ngSanitize', 'mFileInput'])
     $scope.$on(eventHandlerService.PRESENCE_EVENT, function(ngEvent, event, isLive) {
         updatePresence(event);
     });
+
+    $rootScope.$on(matrixPhoneService.CALL_EVENT, function(ngEvent, call) {
+        console.trace("incoming call");
+        call.onError = $scope.onCallError;
+        call.onHangup = $scope.onCallHangup;
+        $scope.currentCall = call;
+    });
     
     $scope.paginateMore = function() {
         if ($scope.state.can_paginate) {
@@ -89,6 +96,15 @@ angular.module('RoomController', ['ngSanitize', 'mFileInput'])
             paginate(MESSAGES_PER_PAGINATION);
         }
     };
+
+    $scope.answerCall = function() {
+        $scope.currentCall.answer();
+    };
+
+    $scope.hangupCall = function() {
+        $scope.currentCall.hangup();
+        $scope.currentCall = undefined;
+    };
         
     var paginate = function(numItems) {
         // console.log("paginate " + numItems);
@@ -454,4 +470,21 @@ angular.module('RoomController', ['ngSanitize', 'mFileInput'])
     $scope.loadMoreHistory = function() {
         paginate(MESSAGES_PER_PAGINATION);
     };
+
+    $scope.startVoiceCall = function() {
+        var call = new MatrixCall($scope.room_id);
+        call.onError = $scope.onCallError;
+        call.onHangup = $scope.onCallHangup;
+        call.placeCall();
+        $scope.currentCall = call;
+    }
+
+    $scope.onCallError = function(errStr) {
+        $scope.feedback = errStr;
+    }
+
+    $scope.onCallHangup = function() {
+        $scope.feedback = "Call ended";
+        $scope.currentCall = undefined;
+    }
 }]);
diff --git a/webclient/room/room.html b/webclient/room/room.html
index 7443b2f77b..572c52e64e 100644
--- a/webclient/room/room.html
+++ b/webclient/room/room.html
@@ -98,6 +98,14 @@
                         <button ng-click="inviteUser(userIDToInvite)">Invite</button>
                 </span>
                 <button ng-click="leaveRoom()">Leave</button>
+                <button ng-click="startVoiceCall()" ng-show="currentCall == undefined">Voice Call</button>
+                <div ng-show="currentCall.state == 'ringing'">
+                Incoming call from {{ currentCall.user_id }}
+                <button ng-click="answerCall()">Answer</button>
+                <button ng-click="hangupCall()">Reject</button>
+                </div>
+                <button ng-click="hangupCall()" ng-show="currentCall && currentCall.state != 'ringing'">Hang up</button>
+                {{ currentCall.state }}
             </div>
         
             {{ feedback }}