/* This file is part of the VROOM project released under the MIT licence Copyright 2014 Firewall Services */ // Default notifications $.notify.defaults( { globalPosition: "bottom left" } ); // Enable tooltip on required elements $('.help').tooltip({container: 'body'}); // Strings we need translated var locale = { ERROR_MAIL_INVALID: '', ERROR_OCCURED: '', CANT_SHARE_SCREEN: '', SCREEN_SHARING_ONLY_FOR_CHROME: '', SCREEN_SHARING_CANCELLED: '', EVERYONE_CAN_SEE_YOUR_SCREEN: '', SCREEN_UNSHARED: '', MIC_MUTED: '', MIC_UNMUTED: '', CAM_SUSPENDED: '', CAM_RESUMED: '', SET_YOUR_NAME_TO_CHAT: '', ONE_OF_THE_PEERS: '', PASSWORD_PROTECT_ON_BY_s: '', PASSWORD_PROTECT_OFF_BY_s: '', OWNER_PASSWORD_CHANGED_BY_s: '', OWNER_PASSWORD_REMOVED_BY_s: '', CANT_SEND_TO_s: '', SCREEN_s: '', TO_INVITE_SHARE_THIS_URL: '' }; // Localize the strings we need $.ajax({ url: rootUrl + 'localize', type: 'POST', dataType: 'json', data: { strings: JSON.stringify(locale), }, success: function(data) { locale = data; } }); // Popup with the URL to share function inviteUrlPopup(){ window.prompt(locale.TO_INVITE_SHARE_THIS_URL, window.location.href); return false; } // set the height of the thumbnails so they are always equals function setPanelHeight() { $(".panelIndex").height(Math.max.apply(null, $(".panelIndex").map(function() { return $(this).height(); }))); } setTimeout(function(){ setPanelHeight(); }, 50); // Resize a few element on window resize window.onresize = function (){ $('#webRTCVideo').css('max-height', maxHeight()); $('#mainVideo>video').css('max-height', maxHeight()); setPanelHeight(); }; function initVroom(room) { var peers = { local: { screenShared: false, micMuted: false, videoPaused: false, displayName: '', color: chooseColor(), role: 'participant' } }; var mainVid = false, chatHistory = {}, chatIndex = 0; $('#name_local').css('background-color', peers.local.color); $.ajaxSetup({ url: rootUrl + 'action', type: 'POST', dataType: 'json', }); // Screen sharing is only suported on chrome > 26 if ( !$.browser.webkit || $.browser.versionNumber < 26 ) { $("#shareScreenLabel").addClass('disabled'); } // If browser doesn't support webRTC or dataChannels if (!webrtc.capabilities.support || !webrtc.capabilities.dataChannel){ $('#noWebrtcSupport').modal('show'); } // Escape entities function stringEscape(string){ string = string.replace(/[\u00A0-\u99999<>\&]/gim, function(i) { return '&#' + i.charCodeAt(0) + ';'; }); return string; } // Update our role function updateRole() { $.ajax({ data: { action: 'getRole', room: roomName }, error: function(data) { $.notify(locale.ERROR_OCCURED, 'error'); }, success: function(data) { peers.local.role = data.role; // Enable owner reserved menu if (data.role == 'owner'){ $('.unauthEl').hide(500); $('.ownerEl').show(500); } else{ $('.ownerEl').hide(500); if (data.auth == 'yes'){ $('.unauthEl').show(500); } } } }); } // Select a color (randomly) from this list, used for text chat function chooseColor(){ // Shamelessly taken from http://martin.ankerl.com/2009/12/09/how-to-create-random-colors-programmatically/ var colors = [ '#B1C7FD', '#DDFDB1', '#FDB1F3', '#B1FDF0', '#FDDAB1', '#C4B1FD', '#B4FDB1', '#FDB1CA', '#B1E1FD', '#F7FDB1', '#EDB1FD', '#B1FDD7', '#FDC1B1', '#B1B7FD', '#CEFDB1', '#FDB1E4', '#B1FAFD', '#FDEAB1', '#D4B1FD', '#B1FDBD', '#FDB1BB', '#B1D1FD', '#E7FDB1', '#FDB1FD', '#B1FDE7', '#B1FDE7' ]; return colors[Math.floor(Math.random() * colors.length)]; } // Just play a sound function playSound(sound){ var audio = new Audio('/snd/'+sound); audio.play(); } // Request full screen function fullScreen(el){ if (el.requestFullScreen) el.requestFullScreen(); else if (el.webkitRequestFullScreen) el.webkitRequestFullScreen(); else if (el.mozRequestFullScreen) el.mozRequestFullScreen(); } // get max height for the main video and the preview div function maxHeight(){ // Which is the window height, minus toolbar, and a margin of 25px return $(window).height()-$('#toolbar').height()-25; } // Logout function hangupCall(){ webrtc.connection.disconnect(); } // Handle a new video (either another peer, or a screen // including our own local screen function addVideo(video,peer){ playSound('join.mp3'); // The main div of this new video // will contain the video plus all other info like displayName, overlay and volume bar var div = $('
').addClass('col-xs-6 col-sm-12 col-lg-6 previewContainer').append(video).appendTo("#webRTCVideo"); // Peer isn't defined ? it's our own local screen var id; if (!peer){ id = 'local'; $('
').addClass('displayName').attr('id', 'name_local_screen').appendTo(div); updateDisplayName(id); } // video id contains screen ? it's a peer sharing it's screen else if (video.id.match(/screen/)){ id = peer.id + '_screen'; var peer_id = video.id.replace('_screen_incoming', ''); $('
').addClass('displayName').attr('id', 'name_' + peer_id + '_screen').appendTo(div); updateDisplayName(peer_id); } // It's the webcam of a peer // add the volume bar and the mute/pause overlay else{ id = peer.id; // Create 3 divs which will contains the volume bar, the displayName and the muted/paused el (overlay) $('
').addClass('volumeBar').attr('id', 'volume_' + id).appendTo(div); $('
').addClass('displayName').attr('id', 'name_' + id).appendTo(div); $('
').attr('id', 'overlay_' + id).appendTo(div); // Create a new dataChannel // will be used for text chat and displayName var color = chooseColor(); peers[peer.id] = { displayName: peer.id, color: color, dc: peer.getDataChannel('vroom'), obj: peer }; // Send our info to this peer (displayName/color) // but wait a bit so the "vroom" dataChannel acreated earlier is fully setup (or have more chances to be) // before we send setTimeout(function(){ if ($('#displayName').val() !== '') { peer.sendDirectly('vroom','setDisplayName', $('#displayName').val()); } peer.send('peer_color', {color: peers.local.color}); // We don't have chat history yet ? Lets ask to this new peer if(!peers.local.hasHistory && chatIndex == 0){ peer.sendDirectly('vroom', 'getHistory', ''); } }, 3500); } $(div).attr('id', 'peer_' + id); // Disable context menu on the video $(video).bind("contextmenu", function(){ return false; }); // And go full screen on double click // TODO: also handle double tap $(video).dblclick(function() { fullScreen(this); }); // Simple click put this preview in the mainVideo div $(video).click(function() { // This video was in the mainVideo div ? lets remove it if ($(this).hasClass('selected')){ $(this).removeClass('selected'); $('#mainVideo').html(''); } else { $('#mainVideo').html($(video).clone().dblclick(function() { fullScreen(this); }).css('max-height', maxHeight()).bind("contextmenu", function(){ return false; })); $('.selected').removeClass('selected'); $(this).addClass('selected'); mainVid = id; } }); } // Update volume of the corresponding peer function showVolume(el, volume) { if (!el){ return; } if (volume < -45) { // vary between -45 and -20 el.css('height', '0px'); } else if (volume > -20) { el.css('height', '100%'); } else { el.css('height', Math.floor((volume + 100) * 100 / 25 - 220) + '%'); } } // Return curren time formatted as XX:XX:XX function getTime(){ var d = new Date(); var hours = d.getHours().toString(), minutes = d.getMinutes().toString(), seconds = d.getSeconds().toString(); hours = (hours.length < 2) ? '0' + hours:hours; minutes = (minutes.length < 2) ? '0' + minutes:minutes; seconds = (seconds.length < 2) ? '0' + seconds:seconds; return hours + ':' + minutes + ':' + seconds; } // Linkify urls // Taken from http://rickyrosario.com/blog/converting-a-url-into-a-link-in-javascript-linkify-function/ function linkify(text){ if (text) { text = text.replace( /((https?\:\/\/)|(www\.))(\S+)(\w{2,4})(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/gi, function(url){ var full_url = url; if (!full_url.match('^https?:\/\/')) { full_url = 'http://' + full_url; } return '' + url + ''; } ); } return text; } // Add a new message to the chat history function newChatMessage(from,message,time,color){ // displayName has already been escaped var cl = (from === 'local') ? 'chatMsgSelf':'chatMsgOthers'; if (!time || !time.match(/^\d{1,2}:\d{1,2}:\d{1,2}$/)){ time = getTime(); } if (peers[from] && peers[from].color){ var color = peers[from].color; var displayName = peers[from].displayName; } // this peer might not be defined if we're importing chat history // So just use the from as the displayName and the provided color else{ var color = (color && color.match(/#[\da-f]{6}/i)) ? color:chooseColor(); var displayName = from; } var newmsg = $('
' + time + ' ' + stringEscape(displayName) + '

' + linkify(stringEscape(message)) + '

').css('background-color', color); $('
').append(newmsg).appendTo('#chatHistory'); $('#chatHistory').scrollTop($('#chatHistory').prop('scrollHeight')); // Record this message in the history object // so we can send it to other peers asking for it chatHistory[chatIndex] = { time: time, from: displayName, color: color, message: message } chatIndex++; } // Update the displayName of the peer // and its screen if any function updateDisplayName(id){ // We might receive the screen before the peer itself // so check if the object exists before using it, or fallback with empty values var display = (peers[id] && peers[id].hasName) ? stringEscape(peers[id].displayName) : ''; var color = (peers[id] && peers[id].color) ? peers[id].color : chooseColor(); var screenName = (peers[id] && peers[id].hasName) ? sprintf(locale.SCREEN_s, stringEscape(peers[id].displayName)) : ''; $('#name_' + id).html(display).css('background-color', color); $('#name_' + id + '_screen').html(screenName).css('background-color', color); } // Save content to a file function downloadContent(filename, content){ var blob = new Blob([content], {type: "text/html;charset=utf-8"}); saveAs(blob, filename); } // Handle volume changes from our own mic webrtc.on('volumeChange', function (volume, treshold) { if (peers.local.micMuted) { return; } showVolume($('#localVolume'), volume); }); // Handle dataChannel messages (incoming) webrtc.on('channelMessage', function (peer, label, data){ // Handle volume changes from remote peers if (data.type == 'volume'){ showVolume($('#volume_' + peer.id), data.volume); } // We only want to act on data receive from the vroom channel if (label !== 'vroom'){ return; } // The peer sets a displayName, record this in our peers struct else if (data.type == 'setDisplayName'){ var name = data.payload; peer.logger.log('Received displayName ' + stringEscape(name) + ' from peer ' + peer.id); // Set display name under the video peers[peer.id].displayName = name; if (name !== ''){ peers[peer.id].hasName = true; } else { peers[peer.id].hasName = false; } updateDisplayName(peer.id); } // This peer asked for our chat history, lets send him else if (data.type == 'getHistory'){ peer.sendDirectly('vroom', 'chatHistory', JSON.stringify(chatHistory)); } // This peer is sending our chat history (and we don't have it yet) else if (data.type == 'chatHistory' && !peers.local.hasHistory){ peers.local.hasHistory = true; var history = JSON.parse(data.payload); for (var i = 0; i < Object.keys(history).length; i++){ newChatMessage(history[i].from,history[i].message,history[i].time,history[i].color); } } // One peer just sent a text chat message else if (data.type == 'textChat'){ if ($('#chatDropdown').hasClass('collapsed')){ $('#chatDropdown').addClass('btn-danger'); playSound('newmsg.mp3'); } newChatMessage(peer.id,data.payload); } }); webrtc.on('peer_color', function(data){ var color = data.payload.color; if (!color.match(/#[\da-f]{6}/i)){ return; } peers[data.id].color = color; $('#name_' + data.id).css('background-color', color); $('#name_' + data.id + '_screen').css('background-color', color); // Update the displayName but only if it has been set (no need to display a cryptic peer ID) if (peers[data.id].hasName){ updateDisplayName(data.id); } }); // Received when a peer mute his mic, or pause the video webrtc.on('mute', function(data){ if (data.name === 'audio'){ showVolume($('#volume_' + data.id), -46); var div = 'mute_' + data.id, cl = 'muted'; } else if (data.name === 'video'){ var div = 'pause_' + data.id, cl = 'paused'; } else{ return; } $("#overlay_" + data.id).append('
'); }); // Handle unmute/resume webrtc.on('unmute', function(data){ if (data.name === 'audio'){ var el = "#mute_" + data.id; } else { // if (data.name === 'video') var el = "#pause_" + data.id; } $(el).remove(); }); // A few notif on password set/unset webrtc.on('password_protect_on', function(data){ $.notify(sprintf(locale.PASSWORD_PROTECT_ON_BY_s, stringEscape(peers[data.id].displayName)), 'info'); }); webrtc.on('password_protect_off', function(data){ $.notify(sprintf(locale.PASSWORD_PROTECT_OFF_BY_s, stringEscape(peers[data.id].displayName)), 'info'); }); webrtc.on('owner_password_changed', function(data){ if (peers.local.role == 'owner'){ $.notify(sprintf(locale.OWNER_PASSWORD_CHANGED_BY_s, stringEscape(peers[data.id].displayName)), 'warn'); } else{ updateRole(); } }); webrtc.on('owner_password_removed', function(data){ if (peers.local.role == 'owner'){ $.notify(sprintf(locale.OWNER_PASSWORD_REMOVED_BY_s, stringEscape(peers[data.id].displayName)), 'warn'); } else{ updateRole(); } }); // Handle the readyToCall event: join the room webrtc.once('readyToCall', function () { webrtc.joinRoom(room); }); // Handle new video stream added: someone joined the room webrtc.on('videoAdded', function(video,peer){ addVideo(video,peer); }); webrtc.on('localScreenAdded', function(video){ addVideo(video); }); // Handle video stream removed: someone leaved the room // TODO: don't trigger on local screen unshare webrtc.on('videoRemoved', function(video,peer){ playSound('leave.mp3'); var id = (peer) ? peer.id : 'local'; id = (video.id.match(/_screen_/)) ? id + '_screen' : id; $("#peer_" + id).remove(); if (mainVid === id){ $('#mainVideo').html(''); mainVid = false; } }); // Error sending something through dataChannel webrtc.on('cantsend', function (peer, message){ if (message.type == 'textChat'){ var who = (peers[peer.id].hasName) ? stringEscape(peers[peer.id].displayName) : locale.ONE_OF_THE_PEERS; $.notify(sprintf(locale.CANT_SEND_TO_s, who), 'error'); } }); // Do not close the dropdown menu when filling the email recipient // and in other dropdown menus $(".dropdown-menu").on("click", "li", function(e){ e.stopPropagation(); }); // Handle Email Invitation $('#inviteEmail').submit(function(event) { event.preventDefault(); var rcpt = $('#recipient').val(); // Simple email address verification if (!rcpt.match(/\S+@\S+\.\S+/)){ $.notify(locale.ERROR_MAIL_INVALID, 'error'); return; } $.ajax({ data: { action: 'invite', recipient: rcpt, room: roomName }, error: function(data) { var msg = (data && data.msg) ? data.msg : locale.ERROR_OCCURED; $.notify(msg, 'error'); }, success: function(data) { $.notify(data.msg, 'success'); $('#recipient').val(''); } }); }); // Set your DisplayName $('#displayName').on('input', function() { // Enable chat input when you set your disaplay name if ($('#displayName').val() != '' && $('#chatBox').attr('disabled')){ $('#chatBox').removeAttr('disabled'); $('#chatBox').removeAttr('placeholder'); peers.local.hasName = true; } // And disable it again if you remove your display name else if ($('#displayName').val() == ''){ $('#chatBox').attr('disabled', true); $('#chatBox').attr('placeholder', locale.SET_YOUR_NAME_TO_CHAT); peers.local.hasName = false; } peers.local.displayName = $('#displayName').val(); updateDisplayName('local'); webrtc.sendDirectlyToAll('vroom', 'setDisplayName', $('#displayName').val()); }); // ScreenSharing $('#shareScreenButton').change(function() { var action = ($(this).is(":checked")) ? 'share':'unshare'; function cantShare(err){ $.notify(err, 'error'); return; } if (!peers.local.screenShared && action === 'share'){ webrtc.shareScreen(function(err){ if(err){ if (err.name == 'EXTENSION_UNAVAILABLE'){ var ver = 34; if ($.browser.linux) ver = 35; if ($.browser.webkit && $.browser.versionNumber >= ver) $('#chromeExtMessage').modal('show'); else cantShare(locale.SCREEN_SHARING_ONLY_FOR_CHROME); } else if (err.name == 'PERMISSION_DENIED' || err.name == 'PermissionDeniedError'){ cantShare(locale.SCREEN_SHARING_CANCELLED); } else{ cantShare(locale.CANT_SHARE_SCREEN); } $('#shareScreenLabel').removeClass('active'); return; } else{ $("#shareScreenLabel").addClass('btn-danger'); peers.local.screenShared = true; $.notify(locale.EVERYONE_CAN_SEE_YOUR_SCREEN, 'warn'); } }); } else{ webrtc.stopScreenShare(); $("#shareScreenLabel").removeClass('btn-danger'); $.notify(locale.SCREEN_UNSHARED, 'success'); peers.local.screenShared = false; } }); // Handle microphone mute/unmute $('#muteMicButton').change(function() { var action = ($(this).is(":checked")) ? 'mute':'unmute'; if (action === 'mute'){ webrtc.mute(); peers.local.micMuted = true; showVolume($('#localVolume'), -45); $("#muteMicLabel").addClass('btn-danger'); $.notify(locale.MIC_MUTED, 'info'); } else{ webrtc.unmute(); peers.local.micMuted = false; $("#muteMicLabel").removeClass('btn-danger'); $.notify(locale.MIC_UNMUTED, 'info'); } }); // Suspend the webcam $('#suspendCamButton').change(function() { var action = ($(this).is(":checked")) ? 'pause':'resume'; if (action === 'pause'){ webrtc.pauseVideo(); peers.local.videoPaused = true; $("#suspendCamLabel").addClass('btn-danger'); $.notify(locale.CAM_SUSPENDED, 'info'); } else{ webrtc.resumeVideo(); peers.local.videoPaused = false; $("#suspendCamLabel").removeClass('btn-danger'); $.notify(locale.CAM_RESUMED, 'info'); } }); // Handle auth $('#authPass').on('input', function() { if ($('#authPass').val() == ''){ $('#authPassButton').addClass('disabled'); } else{ $('#authPassButton').removeClass('disabled'); } }); $('#authForm').submit(function(event) { event.preventDefault(); var pass = $('#authPass').val(); $.ajax({ data: { action: 'authenticate', password: pass, room: roomName }, error: function(data) { var msg = locale.ERROR_OCCURED; $.notify(msg, 'error'); }, success: function(data) { $('#authPass').val(''); if (data.status == 'success'){ updateRole(); $.notify(data.msg, 'success'); } else{ $.notify(data.msg, 'error'); } // Close the auth menu $('#authMenu').dropdown('toggle'); } }); }); $('#joinPass').on('input', function() { if ($('#joinPass').val() == ''){ $('#setJoinPassButton').addClass('disabled'); } else{ $('#setJoinPassButton').removeClass('disabled'); } }); // Join password protection $('#joinPassForm').submit(function(event) { event.preventDefault(); var pass = $('#joinPass').val(); $('#joinPass').val(''); $('#setJoinPassButton').addClass('disabled'); $.ajax({ data: { action: 'setPassword', password: pass, type: 'join', room: roomName }, error: function() { var msg = locale.ERROR_OCCURED; $.notify(msg, 'error'); }, success: function(data) { $('#joinPass').val(''); if (data.status == 'success'){ $.notify(data.msg, 'success'); webrtc.sendToAll('password_protect_on', {}); } else{ $.notify(data.msg, 'error'); } } }); }); // Remove password protection $('#removeJoinPassButton').click(function(event) { $.ajax({ data: { action: 'setPassword', type: 'join', room: roomName }, error: function() { var msg = locale.ERROR_OCCURED; $.notify(msg, 'error'); }, success: function(data) { $('#joinPass').val(''); if (data.status == 'success'){ $.notify(data.msg, 'success'); webrtc.sendToAll('password_protect_off', {}); } else{ $.notify(data.msg, 'error'); } } }); }); // Set owner password $('#ownerPass').on('input', function() { if ($('#ownerPass').val() == ''){ $('#setOwnerPassButton').addClass('disabled'); } else{ $('#setOwnerPassButton').removeClass('disabled'); } }); $('#ownerPassForm').submit(function(event) { event.preventDefault(); var pass = $('#ownerPass').val(); $('#ownerPass').val(''); $('#setOwnerPassButton').addClass('disabled'); $.ajax({ data: { action: 'setPassword', password: pass, type: 'owner', room: roomName }, error: function() { var msg = locale.ERROR_OCCURED; $.notify(msg, 'error'); }, success: function(data) { $('#ownerPass').val(''); if (data.status == 'success'){ $.notify(data.msg, 'success'); webrtc.sendToAll('owner_password_changed', {}); } else{ $.notify(data.msg, 'error'); } } }); }); // Remove the owner password $('#removeOwnerPassButton').click(function(event) { $.ajax({ data: { action: 'setPassword', type: 'owner', room: roomName }, error: function() { var msg = locale.ERROR_OCCURED; $.notify(msg, 'error'); }, success: function(data) { $('#ownerPass').val(''); if (data.status == 'success'){ $.notify(data.msg, 'success'); webrtc.sendToAll('owner_password_removed', {}); } else{ $.notify(data.msg, 'error'); } } }); }); // Choose another color. Useful if two peers have the same $('#changeColorButton').click(function(){ peers.local.color = chooseColor(); webrtc.sendToAll('peer_color', {color: peers.local.color}); updateDisplayName('local'); }); $('#saveChat').click(function(){ downloadContent('VROOM Tchat (' + room + ').html', $('#chatHistory').html()); }); // Handle hangup/close window $('#logoutButton').click(function() { hangupCall; window.location.assign(rootUrl + 'goodby/' + roomName); }); window.onunload = window.onbeforeunload = hangupCall; // Go fullscreen on double click $("#webRTCVideoLocal").dblclick(function() { fullScreen(this); }); $("#webRTCVideoLocal").click(function() { // If this video is already the main one, remove the main if ($(this).hasClass('selected')){ $('#mainVideo').html(''); $(this).removeClass('selected'); mainVid = false; } // Else, update the main video to use this one else{ $('#mainVideo').html($(this).clone().dblclick(function() { fullScreen(this); }).css('max-height', maxHeight())); $('.selected').removeClass('selected'); $(this).addClass('selected'); mainVid = 'self'; } }); // On click, remove the red label on the button $('#chatDropdown').click(function (){ $('#chatDropdown').removeClass('btn-danger'); }); // The input is a textarea, trigger a submit // when the user hit enter, unless shift is pressed $('#chatForm').keypress(function(e) { if (e.which == 13 && !e.shiftKey){ // Do not add \n e.preventDefault(); $(this).trigger('submit'); } }); // Adapt the chat input (textarea) size $('#chatBox').on('input', function(){ var h = parseInt($(this).css('height')); var mh = parseInt($(this).css('max-height')); // Scrollbar, we need to add a row if ($(this).prop("scrollHeight") > $(this).prop('clientHeight') && h < mh){ // Do a loop so that we can adapt to copy/pastes of several lines // But do not add more than 10 rows at a time for (var i = 0; $(this).prop("scrollHeight") > $(this).prop('clientHeight') && h < mh && i<10; i++){ $(this).prop('rows', $(this).prop('rows')+1); } } // Check if we have empty lines in our textarea // If we do, remove one row // TODO: we should only check for the last row and don't remove a row if we have empty lines in the middle else{ lines = $('#chatBox').val().split(/\r?\n/); for(var i=0; i1; i++) { var val = lines[i].replace(/^\s+|\s+$/, ''); if (val.length == 0){ $(this).prop('rows', $(this).prop('rows')-1); } } } }); // Chat: send to other peers $('#chatForm').submit(function (e){ e.preventDefault(); if ($('#chatBox').val()){ webrtc.sendDirectlyToAll('vroom', 'textChat', $('#chatBox').val()); // Local echo of our own message newChatMessage('local',$('#chatBox').val()); // reset the input box $('#chatBox').val('').prop('rows', 1); } }); // Check if we are the owner of the room updateRole(); // Ping the room every minutes // Used to detect inactive rooms setInterval(function pingRoom(){ $.ajax({ data: { action: 'ping', room: roomName }, error: function(data) { var msg = (data && data.msg) ? data.msg : locale.ERROR_OCCURED; $.notify(msg, 'error'); }, success: function(data) { // In case of success, only notify if the server replied something if (data.msg !== ''){ $.notify(data.msg, 'success'); } } }); }, 60000); // Preview heigh is limited to the windows heigh, minus the navbar, minus 25px $('#webRTCVideo').css('max-height', maxHeight()); };