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app.js
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app.js
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(function($) {
var self = {
id: null,
partnerId: null,
username: 'User_'+Math.random().toString(36).substring(4,8)
};
// store the DOM elements to use later
var elMessages = $('#messages_container');
var elUsers = $('#user_container');
var elText = $('#message');
var btnSend = $('#send_btn');
// bind the event listeners
btnSend.on('click', function() {
var text = elText.val().trim();
if(text){
elText.val('');
// as webRTC allows to send P2P message, send it to the partner
// without interacting with the server
easyrtc.sendPeerMessage(self.partnerId, 'send_peer_msg', text);
// add message to the user
addMessage(text, self.id);
}
});
$('#next_btn').on('click', function() {
hangupCall();
addMessage('searching...');
easyrtc.webSocket.emit('next_user');
});
$('#stop_btn').on('click', hangupCall);
$('#clear_btn').on('click', function() {
elMessages.html('');
});
// handle the key events
elText.on('keypress', function(e) {
if (e.keyCode == 13 && !e.shiftKey && !btnSend.hasClass('disabled')) {
btnSend.trigger('click');
return false;
}
});
// will be trigerred on sendPeerMessage() call
easyrtc.setPeerListener( function(senderId, msgType, msgData, targeting) {
if( msgType === 'send_peer_msg' ) {
addMessage(msgData, senderId);
} else if(msgType === 'send_peer_disconnect') {
disconnectMeFromPartner();
}
});
// get the partner video stream - triggered on sucessful call
easyrtc.setStreamAcceptor( function(callerId, stream) {
var video = document.getElementById('partnerVideo');
easyrtc.setVideoObjectSrc(video,stream);
});
// stop to receive the partner video stream - triggered on hangup call
easyrtc.setOnStreamClosed( function (callerId) {
var video = document.getElementById('partnerVideo');
easyrtc.setVideoObjectSrc(video, '');
});
function connect() {
//easyrtc.enableDebug(true);
easyrtc.setUsername(self.username);
easyrtc.initMediaSource(
// success callback
function() {
// set the user own video
var selfVideo = document.getElementById('selfVideo');
easyrtc.setVideoObjectSrc(selfVideo, easyrtc.getLocalStream());
},
// failure callback
function(errorCode, errmesg) {
console.error('Failed to get your media: '+ errmesg);
}
);
easyrtc.connect('enlargify_app',
// success callback
function(socketId) {
self.id = socketId;
// event listeners to update list of active users
easyrtc.webSocket.on('ui_user_add', function(userData) {
elUsers.append('<div id='+userData.id+'>'+userData.name+'</div>');
});
easyrtc.webSocket.on('ui_user_remove', function(userId) {
elUsers.find('#'+userId).remove();
});
easyrtc.webSocket.on('ui_user_set', function(userList) {
for (id in userList) {
elUsers.append('<div id='+userList[id].id+'>'+userList[id].name+'</div>');
}
});
easyrtc.webSocket.on('connect_partner', function(user) {
if(user.caller){
performCall(user.partnerId);
} else {
connectMeToPartner(user.partnerId);
}
});
easyrtc.webSocket.on('disconnect_partner', function(partnerId){
// checks whether still connected to the same user
if(partnerId == self.partnerId){
disconnectMeFromPartner();
}
});
// make the necessary updates on the server side for the new user
easyrtc.webSocket.emit('init_user', {'name':self.username});
},
// failure callback
function(errCode, message) {
console.error('Failed to connect to the server: '+ message);
}
);
}
function addMessage(text, senderId) {
// Escape html special characters, then add linefeeds.
var content = text.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/\n/g, '<br />');
if(!senderId) {
// no sender, informative message only
elMessages.append('<div><b>' + content + '</b></div>');
} else {
elMessages.append('<div>' + (senderId == self.id ? '<b>Me: </b>' : '<b>Stranger: </b>') + content + '</div>');
}
}
function performCall(id) {
connectMeToPartner(id);
// fill these functions if necessary
var successCB = function() {};
var failureCB = function() {
// reset partner on failure
disconnectMeFromPartner();
};
var acceptedCB = function(isAccepted, callerId) {};
easyrtc.call(self.partnerId, successCB, failureCB, acceptedCB);
}
// auto-accept the call
easyrtc.setAcceptChecker(function(callerId, callback) {
//callback(callerId == self.partnerId);
callback(true);
});
function hangupCall() {
if(self.partnerId) {
// inform both users that they disconnected
easyrtc.sendPeerMessage(self.partnerId, 'send_peer_disconnect', 'Disconnected');
disconnectMeFromPartner();
}
easyrtc.hangupAll();
}
function connectMeToPartner(id) {
addMessage('Connected');
// set the partner
self.partnerId = id;
// enable the button to allow sending messages
btnSend.removeClass('disabled');
}
function disconnectMeFromPartner() {
addMessage('Disconnected');
// reset the partner
self.partnerId = null;
// disable the button
btnSend.addClass('disabled');
}
// start the process
connect();
}(jQuery));