/
index.js
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/
index.js
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/*
* (C) Copyright 2014-2015 Kurento (http://kurento.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.
*
*/
var ws = new WebSocket('wss://' + location.host + '/one2one');
var videoInput;
var videoOutput;
var webRtcPeer;
var registerName = null;
const NOT_REGISTERED = 0;
const REGISTERING = 1;
const REGISTERED = 2;
var registerState = null
function setRegisterState(nextState) {
switch (nextState) {
case NOT_REGISTERED:
$('#register').attr('disabled', false);
$('#call').attr('disabled', true);
$('#terminate').attr('disabled', true);
break;
case REGISTERING:
$('#register').attr('disabled', true);
break;
case REGISTERED:
$('#register').attr('disabled', true);
setCallState(NO_CALL);
break;
default:
return;
}
registerState = nextState;
}
const NO_CALL = 0;
const PROCESSING_CALL = 1;
const IN_CALL = 2;
var callState = null
function setCallState(nextState) {
switch (nextState) {
case NO_CALL:
$('#call').attr('disabled', false);
$('#terminate').attr('disabled', true);
break;
case PROCESSING_CALL:
$('#call').attr('disabled', true);
$('#terminate').attr('disabled', true);
break;
case IN_CALL:
$('#call').attr('disabled', true);
$('#terminate').attr('disabled', false);
break;
default:
return;
}
callState = nextState;
}
window.onload = function() {
console = new Console();
setRegisterState(NOT_REGISTERED);
var drag = new Draggabilly(document.getElementById('videoSmall'));
videoInput = document.getElementById('videoInput');
videoOutput = document.getElementById('videoOutput');
document.getElementById('name').focus();
document.getElementById('register').addEventListener('click', function() {
register();
});
document.getElementById('call').addEventListener('click', function() {
call();
});
document.getElementById('terminate').addEventListener('click', function() {
stop();
});
}
window.onbeforeunload = function() {
ws.close();
}
ws.onmessage = function(message) {
var parsedMessage = JSON.parse(message.data);
console.info('Received message: ' + message.data);
switch (parsedMessage.id) {
case 'registerResponse':
resgisterResponse(parsedMessage);
break;
case 'callResponse':
callResponse(parsedMessage);
break;
case 'incomingCall':
incomingCall(parsedMessage);
break;
case 'startCommunication':
startCommunication(parsedMessage);
break;
case 'stopCommunication':
console.info("Communication ended by remote peer");
stop(true);
break;
case 'iceCandidate':
webRtcPeer.addIceCandidate(parsedMessage.candidate)
break;
default:
console.error('Unrecognized message', parsedMessage);
}
}
function resgisterResponse(message) {
if (message.response == 'accepted') {
setRegisterState(REGISTERED);
} else {
setRegisterState(NOT_REGISTERED);
var errorMessage = message.message ? message.message
: 'Unknown reason for register rejection.';
console.log(errorMessage);
alert('Error registering user. See console for further information.');
}
}
function callResponse(message) {
if (message.response != 'accepted') {
console.info('Call not accepted by peer. Closing call');
var errorMessage = message.message ? message.message
: 'Unknown reason for call rejection.';
console.log(errorMessage);
stop(true);
} else {
setCallState(IN_CALL);
webRtcPeer.processAnswer(message.sdpAnswer);
}
}
function startCommunication(message) {
setCallState(IN_CALL);
webRtcPeer.processAnswer(message.sdpAnswer);
}
function incomingCall(message) {
// If bussy just reject without disturbing user
if (callState != NO_CALL) {
var response = {
id : 'incomingCallResponse',
from : message.from,
callResponse : 'reject',
message : 'bussy'
};
return sendMessage(response);
}
setCallState(PROCESSING_CALL);
if (confirm('User ' + message.from
+ ' is calling you. Do you accept the call?')) {
showSpinner(videoInput, videoOutput);
var options = {
localVideo : videoInput,
remoteVideo : videoOutput,
onicecandidate : onIceCandidate
}
webRtcPeer = kurentoUtils.WebRtcPeer.WebRtcPeerSendrecv(options,
function(error) {
if (error) {
console.error(error);
setCallState(NO_CALL);
}
this.generateOffer(function(error, offerSdp) {
if (error) {
console.error(error);
setCallState(NO_CALL);
}
var response = {
id : 'incomingCallResponse',
from : message.from,
callResponse : 'accept',
sdpOffer : offerSdp
};
sendMessage(response);
});
});
} else {
var response = {
id : 'incomingCallResponse',
from : message.from,
callResponse : 'reject',
message : 'user declined'
};
sendMessage(response);
stop(true);
}
}
function register() {
var name = document.getElementById('name').value;
if (name == '') {
window.alert("You must insert your user name");
return;
}
setRegisterState(REGISTERING);
var message = {
id : 'register',
name : name
};
sendMessage(message);
document.getElementById('peer').focus();
}
function call() {
if (document.getElementById('peer').value == '') {
window.alert("You must specify the peer name");
return;
}
setCallState(PROCESSING_CALL);
showSpinner(videoInput, videoOutput);
var options = {
localVideo : videoInput,
remoteVideo : videoOutput,
onicecandidate : onIceCandidate
}
webRtcPeer = kurentoUtils.WebRtcPeer.WebRtcPeerSendrecv(options, function(
error) {
if (error) {
console.error(error);
setCallState(NO_CALL);
}
this.generateOffer(function(error, offerSdp) {
if (error) {
console.error(error);
setCallState(NO_CALL);
}
var message = {
id : 'call',
from : document.getElementById('name').value,
to : document.getElementById('peer').value,
sdpOffer : offerSdp
};
sendMessage(message);
});
});
}
function stop(message) {
setCallState(NO_CALL);
if (webRtcPeer) {
webRtcPeer.dispose();
webRtcPeer = null;
if (!message) {
var message = {
id : 'stop'
}
sendMessage(message);
}
}
hideSpinner(videoInput, videoOutput);
}
function sendMessage(message) {
var jsonMessage = JSON.stringify(message);
console.log('Sending message: ' + jsonMessage);
ws.send(jsonMessage);
}
function onIceCandidate(candidate) {
console.log('Local candidate' + JSON.stringify(candidate));
var message = {
id : 'onIceCandidate',
candidate : candidate
}
sendMessage(message);
}
function showSpinner() {
for (var i = 0; i < arguments.length; i++) {
arguments[i].poster = './img/transparent-1px.png';
arguments[i].style.background = 'center transparent url("./img/spinner.gif") no-repeat';
}
}
function hideSpinner() {
for (var i = 0; i < arguments.length; i++) {
arguments[i].src = '';
arguments[i].poster = './img/webrtc.png';
arguments[i].style.background = '';
}
}
/**
* Lightbox utility (to display media pipeline image in a modal dialog)
*/
$(document).delegate('*[data-toggle="lightbox"]', 'click', function(event) {
event.preventDefault();
$(this).ekkoLightbox();
});