Merge remote-tracking branch 'upstream/master'

README.md

@@ -14,6 +14,9 @@ You can find information on how to deploy Jitsi Meet in the [installation instru
 
 You may also find it helpful to have a look at our sample [config files](https://github.com/jitsi/jitsi-meet/tree/master/doc/example-config-files/) 
 
+## Discuss
+Please use the [Jitsi dev mailing list](http://lists.jitsi.org/pipermail/dev/) to discuss feature requests before opening an issue on github. 
+
 ## Acknowledgements
 
 Jitsi Meet started out as a sample conferencing application using Jitsi Videobridge. It was originally developed by Philipp Hancke who then contributed it to the community where development continues with joint forces! 

chat.js

@@ -39,10 +39,19 @@ var Chat = (function (my) {
         $('#usermsg').keydown(function (event) {
             if (event.keyCode === 13) {
                 event.preventDefault();
-                var message = Util.escapeHtml(this.value);
+                var value = this.value;
                 $('#usermsg').val('').trigger('autosize.resize');
                 this.focus();
-                connection.emuc.sendMessage(message, nickname);
+                var command = new CommandsProcessor(value);
+                if(command.isCommand())
+                {
+                    command.processCommand();
+                }
+                else
+                {
+                    var message = Util.escapeHtml(value);
+                    connection.emuc.sendMessage(message, nickname);
+                }
             }
         });
 
@@ -90,6 +99,45 @@ var Chat = (function (my) {
                 { scrollTop: $('#chatconversation')[0].scrollHeight}, 1000);
     };
 
+    /**
+     * Appends error message to the conversation
+     * @param errorMessage the received error message.
+     * @param originalText the original message.
+     */
+    my.chatAddError = function(errorMessage, originalText)
+    {
+        errorMessage = Util.escapeHtml(errorMessage);
+        originalText = Util.escapeHtml(originalText);
+
+        $('#chatconversation').append('<div class="errorMessage"><b>Error: </b>'
+            + 'Your message' + (originalText? (' \"'+ originalText + '\"') : "")
+            + ' was not sent.' + (errorMessage? (' Reason: ' + errorMessage) : '')
+            +  '</div>');
+        $('#chatconversation').animate(
+            { scrollTop: $('#chatconversation')[0].scrollHeight}, 1000);
+
+    }
+
+    /**
+     * Sets the subject to the UI
+     * @param subject the subject
+     */
+    my.chatSetSubject = function(subject)
+    {
+        if(subject)
+            subject = subject.trim();
+        $('#subject').html(linkify(Util.escapeHtml(subject)));
+        if(subject == "")
+        {
+            $("#subject").css({display: "none"});
+        }
+        else
+        {
+            $("#subject").css({display: "block"});
+        }
+    }
+
+
     /**
      * Opens / closes the chat area.
      */
@@ -242,7 +290,7 @@ var Chat = (function (my) {
         if (unreadMessages) {
             unreadMsgElement.innerHTML = unreadMessages.toString();
 
-            showToolbar();
+            Toolbar.showToolbar();
 
             var chatButtonElement
                 = document.getElementById('chatButton').parentNode;

commands.js

@@ -0,0 +1,98 @@
+/**
+ * Handles commands received via chat messages.
+ */
+var CommandsProcessor = (function()
+{
+    /**
+     * Constructs new CommandProccessor instance from a message.
+     * @param message the message
+     * @constructor
+     */
+    function CommandsPrototype(message)
+    {
+        /**
+         * Extracts the command from the message.
+         * @param message the received message
+         * @returns {string} the command
+         */
+        function getCommand(message)
+        {
+            if(message)
+            {
+                for(var command in commands)
+                {
+                    if(message.indexOf("/" + command) == 0)
+                        return command;
+                }
+            }
+            return "";
+        };
+
+        var command = getCommand(message);
+
+        /**
+         * Returns the name of the command.
+         * @returns {String} the command
+         */
+        this.getCommand = function()
+        {
+            return command;
+        }
+
+
+        var messageArgument = message.substr(command.length + 2);
+
+        /**
+         * Returns the arguments of the command.
+         * @returns {string}
+         */
+        this.getArgument = function()
+        {
+            return messageArgument;
+        }
+    }
+
+    /**
+     * Checks whether this instance is valid command or not.
+     * @returns {boolean}
+     */
+    CommandsPrototype.prototype.isCommand = function()
+    {
+        if(this.getCommand())
+            return true;
+        return false;
+    }
+
+    /**
+     * Processes the command.
+     */
+    CommandsPrototype.prototype.processCommand = function()
+    {
+        if(!this.isCommand())
+            return;
+
+        commands[this.getCommand()](this.getArgument());
+
+    }
+
+    /**
+     * Processes the data for topic command.
+     * @param commandArguments the arguments of the topic command.
+     */
+    var processTopic = function(commandArguments)
+    {
+        var topic = Util.escapeHtml(commandArguments);
+        connection.emuc.setSubject(topic);
+    }
+
+    /**
+     * List with supported commands. The keys are the names of the commands and
+     * the value is the function that processes the message.
+     * @type {{String: function}}
+     */
+    var commands = {
+        "topic" : processTopic
+    };
+
+    return CommandsPrototype;
+})();

config.js

@@ -11,5 +11,7 @@ var config = {
     bosh: '//lambada.jitsi.net/http-bind', // FIXME: use xep-0156 for that
     desktopSharing: 'ext', // Desktop sharing method. Can be set to 'ext', 'webrtc' or false to disable.
     chromeExtensionId: 'diibjkoicjeejcmhdnailmkgecihlobk', // Id of desktop streamer Chrome extension
-    minChromeExtVersion: '0.1' // Required version of Chrome extension
+    minChromeExtVersion: '0.1', // Required version of Chrome extension
+    enableRtpStats: false, // Enables RTP stats processing
+    openSctp: true //Toggle to enable/disable SCTP channels
 };

css/main.css

@@ -43,6 +43,10 @@ html, body{
     color: #087dba;
 }
 
+.errorMessage {
+    color: red;
+}
+
 .remoteuser {
     color: #424242;
 }

css/popover.css

@@ -0,0 +1,124 @@
+.popover {
+  position: absolute;
+  top: 0;
+  left: 0;
+  z-index: 1010;
+  display: none;
+  max-width: 300px;
+  min-width: 100px;
+  padding: 1px;
+  text-align: left;
+  color: #428bca;
+  background-color: #ffffff;
+  background-clip: padding-box;
+  border: 1px solid #cccccc;
+  border: 1px solid rgba(0, 0, 0, 0.2);
+  border-radius: 6px;
+  -webkit-box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
+  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.4);
+  white-space: normal;
+}
+.popover.top {
+  margin-top: -10px;
+}
+.popover.right {
+  margin-left: 10px;
+}
+.popover.bottom {
+  margin-top: 10px;
+}
+.popover.left {
+  margin-left: -10px;
+}
+.popover-title {
+  margin: 0;
+  padding: 8px 14px;
+  font-size: 11pt;
+  font-weight: normal;
+  line-height: 18px;
+  background-color: #f7f7f7;
+  border-bottom: 1px solid #ebebeb;
+  border-radius: 5px 5px 0 0;
+}
+.popover-content {
+  padding: 9px 14px;
+  font-size: 10pt;
+  white-space:pre-wrap;
+  text-align: center;
+}
+.popover > .arrow,
+.popover > .arrow:after {
+  position: absolute;
+  display: block;
+  width: 0;
+  height: 0;
+  border-color: transparent;
+  border-style: solid;
+}
+.popover > .arrow {
+  border-width: 11px;
+}
+.popover > .arrow:after {
+  border-width: 10px;
+  content: "";
+}
+.popover.top > .arrow {
+  left: 50%;
+  margin-left: -11px;
+  border-bottom-width: 0;
+  border-top-color: #999999;
+  border-top-color: rgba(0, 0, 0, 0.25);
+  bottom: -11px;
+}
+.popover.top > .arrow:after {
+  content: " ";
+  bottom: 1px;
+  margin-left: -10px;
+  border-bottom-width: 0;
+  border-top-color: #ffffff;
+}
+.popover.right > .arrow {
+  top: 50%;
+  left: -11px;
+  margin-top: -11px;
+  border-left-width: 0;
+  border-right-color: #999999;
+  border-right-color: rgba(0, 0, 0, 0.25);
+}
+.popover.right > .arrow:after {
+  content: " ";
+  left: 1px;
+  bottom: -10px;
+  border-left-width: 0;
+  border-right-color: #ffffff;
+}
+.popover.bottom > .arrow {
+  left: 50%;
+  margin-left: -11px;
+  border-top-width: 0;
+  border-bottom-color: #999999;
+  border-bottom-color: rgba(0, 0, 0, 0.25);
+  top: -11px;
+}
+.popover.bottom > .arrow:after {
+  content: " ";
+  top: 1px;
+  margin-left: -10px;
+  border-top-width: 0;
+  border-bottom-color: #ffffff;
+}
+.popover.left > .arrow {
+  top: 50%;
+  right: -11px;
+  margin-top: -11px;
+  border-right-width: 0;
+  border-left-color: #999999;
+  border-left-color: rgba(0, 0, 0, 0.25);
+}
+.popover.left > .arrow:after {
+  content: " ";
+  right: 1px;
+  border-right-width: 0;
+  border-left-color: #ffffff;
+  bottom: -10px;
+}

css/popup_menu.css

@@ -9,7 +9,7 @@ ul.popupmenu {
     padding-bottom: 5px;
     padding-top: 5px;
     right: 10px;
-    left: 0px;
+    left: -5px;
     width: 100px;
     background-color: rgba(0,0,0,1);
     -webkit-box-shadow: 0 0 2px #000000, 0 0 10px #000000;
@@ -21,7 +21,7 @@ ul.popupmenu:after {
     display: block;
     position: absolute;
     bottom: -9px;
-    left: 13px;
+    left: 11px;
 }
 
 ul.popupmenu li {

css/videolayout_default.css

@@ -32,9 +32,11 @@
     background-size: contain;
     border-radius:8px;
     border: 2px solid #212425;
+    margin-right: 3px;
 }
 
-#remoteVideos .videocontainer:hover {
+#remoteVideos .videocontainer:hover,
+#remoteVideos .videocontainer.videoContainerFocused {
     width: 100%;
     height: 100%;
     content:"";
@@ -49,7 +51,6 @@
     -webkit-animation-iteration-count: 1;
     -webkit-box-shadow: 0 0 18px #388396;
     border: 2px solid #388396;
-    z-index: 3;
 }
 
 #localVideoWrapper {
@@ -93,6 +94,11 @@
     height: 100%;
 }
 
+.activespeaker {
+    -webkit-filter: grayscale(1);
+    filter: grayscale(1);
+}
+
 #etherpad,
 #presentation {
     text-align: center;
@@ -119,6 +125,7 @@
     text-shadow: 0px 1px 0px rgba(255,255,255,.3), 0px -1px 0px rgba(0,0,0,.7);
     border: 0px;
     z-index: 2;
+    text-align: center;
 }
 
 #remoteVideos .nick {
@@ -133,25 +140,22 @@
 
 .videocontainer>span.displayname,
 .videocontainer>input.displayname {
-    display: inline-block;
+    display: none;
     position: absolute;
-    background: -webkit-linear-gradient(left, rgba(0,0,0,.7), rgba(0,0,0,0));
     color: #FFFFFF;
-    bottom: 0;
-    left: 0;
-    padding: 3px 5px;
-    width: 100%;
-    height: auto;
-    max-height: 18px;
-    font-size: 9pt;
-    text-align: left;
+    background: rgba(0,0,0,.7);
+    text-align: center;
     text-overflow: ellipsis;
+    width: 70%;
+    height: 20%;
+    left: 15%;
+    top: 40%;
+    padding: 5px;
+    font-size: 11pt;
     overflow: hidden;
     white-space: nowrap;
     z-index: 2;
-    box-sizing: border-box;
-    border-bottom-left-radius:4px;
-    border-bottom-right-radius:4px;
+    border-radius:20px;
 }
 
 #localVideoContainer>span.displayname:hover {
@@ -162,6 +166,10 @@
     pointer-events: none;
 }
 
+.videocontainer>input.displayname {
+    height: auto;
+}
+
 #localDisplayName {
     pointer-events: auto !important;
 }
@@ -190,6 +198,7 @@
     text-shadow: 0px 1px 0px rgba(255,255,255,.3), 0px -1px 0px rgba(0,0,0,.7);
     border: 0px;
     z-index: 3;
+    text-align: center;
 }
 
 .videocontainer>span.videoMuted {
@@ -226,7 +235,6 @@
 #header{
     display:none;
     position:absolute;
-    height: 0px;
     text-align:center;
     top:0;
     left:0;
@@ -241,13 +249,27 @@
     margin-right:auto;
     height:39px;
     width:auto;
-    overflow: hidden;
     background: linear-gradient(to bottom, rgba(103,103,103,.65) , rgba(0,0,0,.65));
     -webkit-box-shadow: 0 0 2px #000000, 0 0 10px #000000;
     border-bottom-left-radius: 12px;
     border-bottom-right-radius: 12px;
 }
 
+#subject {
+    position: relative;
+    z-index: 3;
+    width: auto;
+    padding: 5px;
+    margin-left: 40%;
+    margin-right: 40%;
+    text-align: center;
+    background: linear-gradient(to bottom, rgba(255,255,255,.85) , rgba(255,255,255,.35));
+    -webkit-box-shadow: 0 0 2px #000000, 0 0 10px #000000;
+    border-bottom-left-radius: 12px;
+    border-bottom-right-radius: 12px;
+    display: none;
+}
+
 .watermark {
     display: block;
     position: absolute;

data_channels.js

@@ -0,0 +1,80 @@
+/* global connection, Strophe, updateLargeVideo, focusedVideoSrc*/
+/**
+ * Callback triggered by PeerConnection when new data channel is opened
+ * on the bridge.
+ * @param event the event info object.
+ */
+function onDataChannel(event)
+{
+    var dataChannel = event.channel;
+
+    dataChannel.onopen = function ()
+    {
+        console.info("Data channel opened by the bridge !!!", dataChannel);
+
+        // Code sample for sending string and/or binary data
+        // Sends String message to the bridge
+        //dataChannel.send("Hello bridge!");
+        // Sends 12 bytes binary message to the bridge
+        //dataChannel.send(new ArrayBuffer(12));
+    };
+
+    dataChannel.onerror = function (error)
+    {
+        console.error("Data Channel Error:", error, dataChannel);
+    };
+
+    dataChannel.onmessage = function (event)
+    {
+        var msgData = event.data;
+        console.info("Got Data Channel Message:", msgData, dataChannel);
+
+        // Active speaker event
+        if (msgData.indexOf('activeSpeaker') === 0)
+        {
+            // Endpoint ID from the bridge
+            var resourceJid = msgData.split(":")[1];
+
+            console.info(
+                "Data channel new active speaker event: " + resourceJid);
+            $(document).trigger('activespeakerchanged', [resourceJid]);
+        }
+    };
+
+    dataChannel.onclose = function ()
+    {
+        console.info("The Data Channel closed", dataChannel);
+    };
+}
+
+/**
+ * Binds "ondatachannel" event listener to given PeerConnection instance.
+ * @param peerConnection WebRTC peer connection instance.
+ */
+function bindDataChannelListener(peerConnection)
+{
+    peerConnection.ondatachannel = onDataChannel;
+
+    // Sample code for opening new data channel from Jitsi Meet to the bridge.
+    // Although it's not a requirement to open separate channels from both bridge
+    // and peer as single channel can be used for sending and receiving data.
+    // So either channel opened by the bridge or the one opened here is enough
+    // for communication with the bridge.
+    /*var dataChannelOptions =
+    {
+        reliable: true
+    };
+    var dataChannel
+       = peerConnection.createDataChannel("myChannel", dataChannelOptions);
+
+    // Can be used only when is in open state
+    dataChannel.onopen = function ()
+    {
+        dataChannel.send("My channel !!!");
+    };
+    dataChannel.onmessage = function (event)
+    {
+        var msgData = event.data;
+        console.info("Got My Data Channel Message:", msgData, dataChannel);
+    };*/
+}

desktopsharing.js

@@ -1,4 +1,4 @@
-/* global $, config, connection, chrome, alert, getUserMediaWithConstraints, change_local_video, getConferenceHandler */
+/* global $, config, connection, chrome, alert, getUserMediaWithConstraints, changeLocalVideo, getConferenceHandler */
 /**
  * Indicates that desktop stream is currently in use(for toggle purpose).
  * @type {boolean}
@@ -251,7 +251,9 @@ function newStreamCreated(stream) {
 
     var oldStream = connection.jingle.localVideo;
 
-    change_local_video(stream, !isUsingScreenStream);
+    connection.jingle.localVideo = stream;
+
+    VideoLayout.changeLocalVideo(stream, !isUsingScreenStream);
 
     var conferenceHandler = getConferenceHandler();
     if (conferenceHandler) {

etherpad.js

@@ -45,8 +45,8 @@ var Etherpad = (function (my) {
                 if (Prezi.isPresentationVisible()) {
                     largeVideo.css({opacity: '0'});
                 } else {
-                    setLargeVideoVisible(false);
-                    dockToolbar(true);
+                    VideoLayout.setLargeVideoVisible(false);
+                    Toolbar.dockToolbar(true);
                 }
 
                 $('#etherpad>iframe').fadeIn(300, function () {
@@ -63,8 +63,8 @@ var Etherpad = (function (my) {
                 document.body.style.background = 'black';
                 if (!isPresentation) {
                     $('#largeVideo').fadeIn(300, function () {
-                        setLargeVideoVisible(true);
-                        dockToolbar(false);
+                        VideoLayout.setLargeVideoVisible(true);
+                        Toolbar.dockToolbar(false);
                     });
                 }
             });

index.html

@@ -20,26 +20,35 @@
     <script src="libs/colibri/colibri.focus.js?v=8"></script><!-- colibri focus implementation -->
     <script src="libs/colibri/colibri.session.js?v=1"></script>
     <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
-    <script src="config.js"></script><!-- adapt to your needs, i.e. set hosts and bosh path -->
-    <script src="muc.js?v=10"></script><!-- simple MUC library -->
+    <script src="libs/tooltip.js?v=1"></script><!-- bootstrap tooltip lib -->
+    <script src="libs/popover.js?v=1"></script><!-- bootstrap tooltip lib -->
+    <script src="config.js?v=2"></script><!-- adapt to your needs, i.e. set hosts and bosh path -->
+    <script src="muc.js?v=12"></script><!-- simple MUC library -->
     <script src="estos_log.js?v=2"></script><!-- simple stanza logger -->
-    <script src="desktopsharing.js?v=1"></script><!-- desktop sharing -->
-    <script src="app.js?v=26"></script><!-- application logic -->
-    <script src="chat.js?v=4"></script><!-- chat logic -->
-    <script src="util.js?v=3"></script><!-- utility functions -->
-    <script src="etherpad.js?v=7"></script><!-- etherpad plugin -->
-    <script src="prezi.js?v=2"></script><!-- prezi plugin -->
-    <script src="smileys.js?v=1"></script><!-- smiley images -->
-    <script src="replacement.js?v=5"></script><!-- link and smiley replacement -->
-    <script src="moderatemuc.js?v=1"></script><!-- moderator plugin -->
+    <script src="desktopsharing.js?v=2"></script><!-- desktop sharing -->
+    <script src="data_channels.js?v=2"></script><!-- data channels -->
+    <script src="app.js?v=29"></script><!-- application logic -->
+    <script src="commands.js?v=1"></script><!-- application logic -->
+    <script src="chat.js?v=6"></script><!-- chat logic -->
+    <script src="util.js?v=5"></script><!-- utility functions -->
+    <script src="etherpad.js?v=8"></script><!-- etherpad plugin -->
+    <script src="prezi.js?v=4"></script><!-- prezi plugin -->
+    <script src="smileys.js?v=2"></script><!-- smiley images -->
+    <script src="replacement.js?v=6"></script><!-- link and smiley replacement -->
+    <script src="moderatemuc.js?v=3"></script><!-- moderator plugin -->
     <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
+    <script src="rtp_stats.js?v=1"></script><!-- RTP stats processing -->
+    <script src="local_stats.js?v=1"></script><!-- Local stats processing -->
+    <script src="videolayout.js?v=4"></script><!-- video ui -->
+    <script src="toolbar.js?v=2"></script><!-- toolbar ui -->
     <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet">
     <link rel="stylesheet" href="css/font.css"/>
-    <link rel="stylesheet" type="text/css" media="screen" href="css/main.css?v=20"/>
-    <link rel="stylesheet" type="text/css" media="screen" href="css/videolayout_default.css?v=4" id="videolayout_default"/>
+    <link rel="stylesheet" type="text/css" media="screen" href="css/main.css?v=21"/>
+    <link rel="stylesheet" type="text/css" media="screen" href="css/videolayout_default.css?v=7" id="videolayout_default"/>
     <link rel="stylesheet" href="css/jquery-impromptu.css?v=4">
     <link rel="stylesheet" href="css/modaldialog.css?v=3">
-    <link rel="stylesheet" href="css/popup_menu.css?v=1">
+    <link rel="stylesheet" href="css/popup_menu.css?v=2">
+    <link rel="stylesheet" href="css/popover.css?v=1">
     <!--
         Link used for inline installation of chrome desktop streaming extension,
         is updated automatically from the code with the value defined in config.js -->
@@ -49,35 +58,40 @@
     <script src="libs/prezi_player.js?v=2"></script>
   </head>
   <body>
-    <div id="header">
-        <span id="toolbar">
-            <a class="button" onclick='toggleAudio();'>
-                <i id="mute" title="Mute / unmute" class="icon-microphone"></i></a>
-            <div class="header_button_separator"></div>
-            <a class="button" onclick='buttonClick("#video", "icon-camera icon-camera-disabled");toggleVideo();'>
-                <i id="video" title="Start / stop camera" class="icon-camera"></i></a>
-            <div class="header_button_separator"></div>
-            <a class="button" onclick="openLockDialog();" title="Lock/unlock room"><i id="lockIcon" class="icon-security"></i></a>
-            <div class="header_button_separator"></div>
-            <a class="button" onclick="openLinkDialog();" title="Invite others"><i class="icon-link"></i></a>
-            <div class="header_button_separator"></div>
-            <span class="toolbar_span">
-                <a class="button" onclick='Chat.toggleChat();' title="Open chat"><i id="chatButton" class="icon-chat"></i></a>
-                <span id="unreadMessages"></span>
-            </span>
-            <div class="header_button_separator"></div>
-            <a class="button" onclick='Prezi.openPreziDialog();' title="Share Prezi"><i class="icon-prezi"></i></a>
-            <span id="etherpadButton">
+    <div style="position: relative;" id="header_container">
+        <div id="header">
+            <span id="toolbar">
+                <a class="button" data-toggle="popover" data-placement="bottom" data-content="Mute / Unmute" onclick='toggleAudio();'>
+                    <i id="mute" class="icon-microphone"></i></a>
                 <div class="header_button_separator"></div>
-                <a class="button" onclick='Etherpad.toggleEtherpad(0);' title="Open shared document"><i class="icon-share-doc"></i></a>
-            </span>
-            <div class="header_button_separator"></div>
-            <span id="desktopsharing" style="display: none">
-                <a class="button" onclick="toggleScreenSharing();" title="Share screen"><i class="icon-share-desktop"></i></a>
+                <a class="button" data-toggle="popover" data-placement="bottom" data-content="Start / stop camera" onclick='buttonClick("#video", "icon-camera icon-camera-disabled");toggleVideo();'>
+                    <i id="video" class="icon-camera"></i></a>
+                <div class="header_button_separator"></div>
+                <a class="button" data-toggle="popover" data-placement="bottom" data-content="Lock / unlock room" onclick="Toolbar.openLockDialog();">
+                    <i id="lockIcon" class="icon-security"></i></a>
+                <div class="header_button_separator"></div>
+                <a class="button" data-toggle="popover" data-placement="bottom" data-content="Invite others" onclick="Toolbar.openLinkDialog();"><i class="icon-link"></i></a>
+                <div class="header_button_separator"></div>
+                <span class="toolbar_span">
+                    <a class="button" data-toggle="popover" data-placement="bottom" data-content="Open / close chat" onclick='Chat.toggleChat();'><i id="chatButton" class="icon-chat"></i></a>
+                    <span id="unreadMessages"></span>
+                </span>
+                <div class="header_button_separator"></div>
+                <a class="button" data-toggle="popover" data-placement="bottom" data-content="Share Prezi" onclick='Prezi.openPreziDialog();'><i class="icon-prezi"></i></a>
+                <span id="etherpadButton">
+                    <div class="header_button_separator"></div>
+                    <a class="button" data-toggle="popover" data-placement="bottom" data-content="Shared document" onclick='Etherpad.toggleEtherpad(0);'><i class="icon-share-doc"></i></a>
+                </span>
                 <div class="header_button_separator"></div>
+                <span id="desktopsharing" style="display: none">
+                    <a class="button" data-toggle="popover" data-placement="bottom" data-content="Share screen" onclick="toggleScreenSharing();"><i class="icon-share-desktop"></i></a>
+                    <div class="header_button_separator"></div>
+                </span>
+                <a class="button" data-toggle="popover" data-placement="bottom" data-content="Enter / Exit Full Screen" onclick='buttonClick("#fullScreen", "icon-full-screen icon-exit-full-screen");Toolbar.toggleFullScreen();'>
+                    <i id="fullScreen" class="icon-full-screen"></i></a>
             </span>
-            <a class="button" onclick='buttonClick("#fullScreen", "icon-full-screen icon-exit-full-screen");toggleFullScreen();'><i id="fullScreen" title="Enter / Exit Full Screen" class="icon-full-screen"></i></a>
-        </span>
+        </div>
+        <div id="subject"></div>
     </div>
     <div id="settings">
       <h1>Connection Settings</h1>
@@ -89,7 +103,7 @@
       </form>
     </div>
     <div id="reloadPresentation"><a onclick='Prezi.reloadPresentation();'><i title="Reload Prezi" class="fa fa-repeat fa-lg"></i></a></div>
-    <div id="videospace" onmousemove="showToolbar();">
+    <div id="videospace" onmousemove="Toolbar.showToolbar();">
         <div id="largeVideoContainer" class="videocontainer">
             <div id="presentation"></div>
             <div id="etherpad"></div>
@@ -104,7 +118,7 @@
                     <!--<video id="localVideo" autoplay oncontextmenu="return false;" muted></video> - is now per stream generated -->
                 </span>
                 <audio id="localAudio" autoplay oncontextmenu="return false;" muted></audio>
-                <span class="focusindicator"></span>
+                <span class="focusindicator" data-content="The owner of&#10;this conference" data-toggle="popover" data-placement="top"></span>
             </span>
             <audio id="userJoined" src="sounds/joined.wav" preload="auto"></audio>
             <audio id="userLeft" src="sounds/left.wav" preload="auto"></audio>
@@ -123,6 +137,6 @@
         <audio id="chatNotification" src="sounds/incomingMessage.wav" preload="auto"></audio>
         <textarea id="usermsg" placeholder='Enter text...' autofocus></textarea>
     </div>
-    <a id="downloadlog" onclick='dump(event.target);'><i title="Download support information" class="fa fa-cloud-download"></i></a>
+    <a id="downloadlog" onclick='dump(event.target);' data-toggle="popover" data-placement="right" data-content="Download logs" ><i class="fa fa-cloud-download"></i></a>
   </body>
 </html>

libs/colibri/colibri.focus.js

@@ -44,8 +44,27 @@ function ColibriFocus(connection, bridgejid) {
     this.peers = [];
     this.confid = null;
 
+    /**
+     * Local XMPP resource used to join the multi user chat.
+     * @type {*}
+     */
+    this.myMucResource = Strophe.getResourceFromJid(connection.emuc.myroomjid);
+
+    /**
+     * Default channel expire value in seconds.
+     * @type {number}
+     */
+    this.channelExpire = 60;
+
     // media types of the conference
-    this.media = ['audio', 'video'];
+    if (config.openSctp)
+    {
+        this.media = ['audio', 'video', 'data'];
+    }
+    else
+    {
+        this.media = ['audio', 'video'];
+    }
 
     this.connection.jingle.sessions[this.sid] = this;
     this.mychannel = [];
@@ -151,17 +170,29 @@ ColibriFocus.prototype._makeConference = function () {
     elem.c('conference', {xmlns: 'http://jitsi.org/protocol/colibri'});
 
     this.media.forEach(function (name) {
+        var isData = name === 'data';
+        var channel = isData ? 'sctpconnection' : 'channel';
+
         elem.c('content', {name: name});
-        elem.c('channel', {
+
+        elem.c(channel, {
             initiator: 'true',
             expire: '15',
-            endpoint: 'fix_me_focus_endpoint'}).up();
+            endpoint: self.myMucResource
+        });
+        if (isData)
+            elem.attrs({port:  5000});
+        elem.up();// end of channel
+
         for (var j = 0; j < self.peers.length; j++) {
-            elem.c('channel', {
+            elem.c(channel, {
                 initiator: 'true',
                 expire: '15',
                 endpoint: self.peers[j].substr(1 + self.peers[j].lastIndexOf('/'))
-            }).up();
+            });
+            if (isData)
+                elem.attrs({port: 5000});
+            elem.up(); // end of channel
         }
         elem.up(); // end of content
     });
@@ -209,8 +240,13 @@ ColibriFocus.prototype.createdConference = function (result) {
     this.confid = $(result).find('>conference').attr('id');
     var remotecontents = $(result).find('>conference>content').get();
     var numparticipants = 0;
-    for (var i = 0; i < remotecontents.length; i++) {
-        tmp = $(remotecontents[i]).find('>channel').get();
+    for (var i = 0; i < remotecontents.length; i++)
+    {
+        var contentName = $(remotecontents[i]).attr('name');
+        var channelName
+            = contentName !== 'data' ? '>channel' : '>sctpconnection';
+
+        tmp = $(remotecontents[i]).find(channelName).get();
         this.mychannel.push($(tmp.shift()));
         numparticipants = tmp.length;
         for (j = 0; j < tmp.length; j++) {
@@ -223,7 +259,55 @@ ColibriFocus.prototype.createdConference = function (result) {
 
     console.log('remote channels', this.channels);
 
-    var bridgeSDP = new SDP('v=0\r\no=- 5151055458874951233 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\nm=audio 1 RTP/SAVPF 111 103 104 0 8 106 105 13 126\r\nc=IN IP4 0.0.0.0\r\na=rtcp:1 IN IP4 0.0.0.0\r\na=mid:audio\r\na=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\na=sendrecv\r\na=rtpmap:111 opus/48000/2\r\na=fmtp:111 minptime=10\r\na=rtpmap:103 ISAC/16000\r\na=rtpmap:104 ISAC/32000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:106 CN/32000\r\na=rtpmap:105 CN/16000\r\na=rtpmap:13 CN/8000\r\na=rtpmap:126 telephone-event/8000\r\na=maxptime:60\r\nm=video 1 RTP/SAVPF 100 116 117\r\nc=IN IP4 0.0.0.0\r\na=rtcp:1 IN IP4 0.0.0.0\r\na=mid:video\r\na=extmap:2 urn:ietf:params:rtp-hdrext:toffset\r\na=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=sendrecv\r\na=rtpmap:100 VP8/90000\r\na=rtcp-fb:100 ccm fir\r\na=rtcp-fb:100 nack\r\na=rtcp-fb:100 goog-remb\r\na=rtpmap:116 red/90000\r\na=rtpmap:117 ulpfec/90000\r\n');
+    // Notify that the focus has created the conference on the bridge
+    $(document).trigger('conferenceCreated.jingle', [self]);
+
+    var bridgeSDP = new SDP(
+        'v=0\r\n' +
+        'o=- 5151055458874951233 2 IN IP4 127.0.0.1\r\n' +
+        's=-\r\n' +
+        't=0 0\r\n' +
+        /* Audio */
+        'm=audio 1 RTP/SAVPF 111 103 104 0 8 106 105 13 126\r\n' +
+        'c=IN IP4 0.0.0.0\r\n' +
+        'a=rtcp:1 IN IP4 0.0.0.0\r\n' +
+        'a=mid:audio\r\n' +
+        'a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\n' +
+        'a=sendrecv\r\n' +
+        'a=rtpmap:111 opus/48000/2\r\n' +
+        'a=fmtp:111 minptime=10\r\n' +
+        'a=rtpmap:103 ISAC/16000\r\n' +
+        'a=rtpmap:104 ISAC/32000\r\n' +
+        'a=rtpmap:0 PCMU/8000\r\n' +
+        'a=rtpmap:8 PCMA/8000\r\n' +
+        'a=rtpmap:106 CN/32000\r\n' +
+        'a=rtpmap:105 CN/16000\r\n' +
+        'a=rtpmap:13 CN/8000\r\n' +
+        'a=rtpmap:126 telephone-event/8000\r\n' +
+        'a=maxptime:60\r\n' +
+        /* Video */
+        'm=video 1 RTP/SAVPF 100 116 117\r\n' +
+        'c=IN IP4 0.0.0.0\r\n' +
+        'a=rtcp:1 IN IP4 0.0.0.0\r\n' +
+        'a=mid:video\r\n' +
+        'a=extmap:2 urn:ietf:params:rtp-hdrext:toffset\r\n' +
+        'a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\n' +
+        'a=sendrecv\r\n' +
+        'a=rtpmap:100 VP8/90000\r\n' +
+        'a=rtcp-fb:100 ccm fir\r\n' +
+        'a=rtcp-fb:100 nack\r\n' +
+        'a=rtcp-fb:100 goog-remb\r\n' +
+        'a=rtpmap:116 red/90000\r\n' +
+        'a=rtpmap:117 ulpfec/90000\r\n' +
+        /* Data SCTP */
+        (config.openSctp ?
+            'm=application 1 DTLS/SCTP 5000\r\n' +
+            'c=IN IP4 0.0.0.0\r\n' +
+            'a=sctpmap:5000 webrtc-datachannel\r\n' +
+            'a=mid:data\r\n'
+            : '')
+    );
+
     bridgeSDP.media.length = this.mychannel.length;
     var channel;
     /*
@@ -262,12 +346,17 @@ ColibriFocus.prototype.createdConference = function (result) {
         // get the mixed ssrc
         tmp = $(this.mychannel[channel]).find('>source[xmlns="urn:xmpp:jingle:apps:rtp:ssma:0"]');
         // FIXME: check rtp-level-relay-type
-        if (tmp.length) {
+
+        var isData = bridgeSDP.media[channel].indexOf('application') !== -1;
+        if (!isData && tmp.length)
+        {
             bridgeSDP.media[channel] += 'a=ssrc:' + tmp.attr('ssrc') + ' ' + 'cname:mixed' + '\r\n';
             bridgeSDP.media[channel] += 'a=ssrc:' + tmp.attr('ssrc') + ' ' + 'label:mixedlabela0' + '\r\n';
             bridgeSDP.media[channel] += 'a=ssrc:' + tmp.attr('ssrc') + ' ' + 'msid:mixedmslabel mixedlabela0' + '\r\n';
             bridgeSDP.media[channel] += 'a=ssrc:' + tmp.attr('ssrc') + ' ' + 'mslabel:mixedmslabel' + '\r\n';
-        } else {
+        }
+        else if (!isData)
+        {
             // make chrome happy... '3735928559' == 0xDEADBEEF
             // FIXME: this currently appears as two streams, should be one
             bridgeSDP.media[channel] += 'a=ssrc:' + '3735928559' + ' ' + 'cname:mixed' + '\r\n';
@@ -308,21 +397,41 @@ ColibriFocus.prototype.createdConference = function (result) {
                             elem.c('conference', {xmlns: 'http://jitsi.org/protocol/colibri', id: self.confid});
                             var localSDP = new SDP(self.peerconnection.localDescription.sdp);
                             localSDP.media.forEach(function (media, channel) {
-                                var name = SDPUtil.parse_mline(media.split('\r\n')[0]).media;
+                                var name = SDPUtil.parse_mid(SDPUtil.find_line(media, 'a=mid:'));
                                 elem.c('content', {name: name});
-                                elem.c('channel', {
-                                    initiator: 'true',
-                                    expire: '15',
-                                    id: self.mychannel[channel].attr('id'),
-                                    endpoint: 'fix_me_focus_endpoint'
-                                });
-
-                                // FIXME: should reuse code from .toJingle
                                 var mline = SDPUtil.parse_mline(media.split('\r\n')[0]);
-                                for (var j = 0; j < mline.fmt.length; j++) {
-                                    var rtpmap = SDPUtil.find_line(media, 'a=rtpmap:' + mline.fmt[j]);
-                                    elem.c('payload-type', SDPUtil.parse_rtpmap(rtpmap));
-                                    elem.up();
+                                if (name !== 'data')
+                                {
+                                    elem.c('channel', {
+                                        initiator: 'true',
+                                        expire: self.channelExpire,
+                                        id: self.mychannel[channel].attr('id'),
+                                        endpoint: self.myMucResource
+                                    });
+
+                                    // FIXME: should reuse code from .toJingle
+                                    for (var j = 0; j < mline.fmt.length; j++)
+                                    {
+                                        var rtpmap = SDPUtil.find_line(media, 'a=rtpmap:' + mline.fmt[j]);
+                                        if (rtpmap)
+                                        {
+                                            elem.c('payload-type', SDPUtil.parse_rtpmap(rtpmap));
+                                            elem.up();
+                                        }
+                                    }
+                                }
+                                else
+                                {
+                                    var sctpmap = SDPUtil.find_line(media, 'a=sctpmap:' + mline.fmt[0]);
+                                    var sctpPort = SDPUtil.parse_sctpmap(sctpmap)[0];
+                                    elem.c("sctpconnection",
+                                        {
+                                            initiator: 'true',
+                                            expire: self.channelExpire,
+                                            endpoint: self.myMucResource,
+                                            port: sctpPort
+                                        }
+                                    );
                                 }
 
                                 localSDP.TransportToJingle(channel, elem);
@@ -336,7 +445,9 @@ ColibriFocus.prototype.createdConference = function (result) {
                                     // ...
                                 },
                                 function (error) {
-                                    console.warn(error);
+                                    console.error(
+                                        "ERROR setLocalDescription succeded",
+                                        error, elem);
                                 }
                             );
 
@@ -344,6 +455,10 @@ ColibriFocus.prototype.createdConference = function (result) {
                             for (var i = 0; i < numparticipants; i++) {
                                 self.initiate(self.peers[i], true);
                             }
+
+                            // Notify we've created the conference
+                            $(document).trigger(
+                                'conferenceCreated.jingle', self);
                         },
                         function (error) {
                             console.warn('setLocalDescription failed.', error);
@@ -417,7 +532,10 @@ ColibriFocus.prototype.initiate = function (peer, isInitiator) {
             sdp.media[j] += 'a=ssrc:' + tmp.attr('ssrc') + ' ' + 'label:mixedlabela0' + '\r\n';
             sdp.media[j] += 'a=ssrc:' + tmp.attr('ssrc') + ' ' + 'msid:mixedmslabel mixedlabela0' + '\r\n';
             sdp.media[j] += 'a=ssrc:' + tmp.attr('ssrc') + ' ' + 'mslabel:mixedmslabel' + '\r\n';
-        } else {
+        }
+        // No SSRCs for 'data', comes when j == 2
+        else if (j < 2)
+        {
             // make chrome happy... '3735928559' == 0xDEADBEEF
             sdp.media[j] += 'a=ssrc:' + '3735928559' + ' ' + 'cname:mixed' + '\r\n';
             sdp.media[j] += 'a=ssrc:' + '3735928559' + ' ' + 'label:mixedlabelv0' + '\r\n';
@@ -486,9 +604,17 @@ ColibriFocus.prototype.initiate = function (peer, isInitiator) {
 // pull in a new participant into the conference
 ColibriFocus.prototype.addNewParticipant = function (peer) {
     var self = this;
-    if (this.confid === 0) {
+    if (this.confid === 0 || !this.peerconnection.localDescription)
+    {
         // bad state
-        console.log('confid does not exist yet, postponing', peer);
+        if (this.confid === 0)
+        {
+            console.error('confid does not exist yet, postponing', peer);
+        }
+        else
+        {
+            console.error('local description not ready yet, postponing', peer);
+        }
         window.setTimeout(function () {
             self.addNewParticipant(peer);
         }, 250);
@@ -502,14 +628,26 @@ ColibriFocus.prototype.addNewParticipant = function (peer) {
     elem.c('conference', {xmlns: 'http://jitsi.org/protocol/colibri', id: this.confid});
     var localSDP = new SDP(this.peerconnection.localDescription.sdp);
     localSDP.media.forEach(function (media, channel) {
-        var name = SDPUtil.parse_mline(media.split('\r\n')[0]).media;
+        var name = SDPUtil.parse_mid(SDPUtil.find_line(media, 'a=mid:'));
         elem.c('content', {name: name});
-        elem.c('channel', {
+        if (name !== 'data')
+        {
+            elem.c('channel', {
                 initiator: 'true',
-                expire:'15',
+                expire: self.channelExpire,
                 endpoint: peer.substr(1 + peer.lastIndexOf('/'))
-        });
-        elem.up(); // end of channel
+            });
+        }
+        else
+        {
+            elem.c('sctpconnection', {
+                endpoint: peer.substr(1 + peer.lastIndexOf('/')),
+                initiator: 'true',
+                expire: self.channelExpire,
+                port: 5000
+            });
+        }
+        elem.up(); // end of channel/sctpconnection
         elem.up(); // end of content
     });
 
@@ -517,7 +655,15 @@ ColibriFocus.prototype.addNewParticipant = function (peer) {
         function (result) {
             var contents = $(result).find('>conference>content').get();
             for (var i = 0; i < contents.length; i++) {
-                tmp = $(contents[i]).find('>channel').get();
+                var channelXml = $(contents[i]).find('>channel');
+                if (channelXml.length)
+                {
+                    tmp = channelXml.get();
+                }
+                else
+                {
+                    tmp = $(contents[i]).find('>sctpconnection').get();
+                }
                 self.channels[index][i] = tmp[0];
             }
             self.initiate(peer, true);
@@ -531,37 +677,52 @@ ColibriFocus.prototype.addNewParticipant = function (peer) {
 // update the channel description (payload-types + dtls fp) for a participant
 ColibriFocus.prototype.updateChannel = function (remoteSDP, participant) {
     console.log('change allocation for', this.confid);
+    var self = this;
     var change = $iq({to: this.bridgejid, type: 'set'});
     change.c('conference', {xmlns: 'http://jitsi.org/protocol/colibri', id: this.confid});
-    for (channel = 0; channel < this.channels[participant].length; channel++) {
-        change.c('content', {name: channel === 0 ? 'audio' : 'video'});
-        change.c('channel', {
-            id: $(this.channels[participant][channel]).attr('id'),
-            endpoint: $(this.channels[participant][channel]).attr('endpoint'),
-            expire: '15'
-        });
+    for (channel = 0; channel < this.channels[participant].length; channel++)
+    {
+        var name = SDPUtil.parse_mid(SDPUtil.find_line(remoteSDP.media[channel], 'a=mid:'));
+        change.c('content', {name: name});
+        if (name !== 'data')
+        {
+            change.c('channel', {
+                id: $(this.channels[participant][channel]).attr('id'),
+                endpoint: $(this.channels[participant][channel]).attr('endpoint'),
+                expire: self.channelExpire
+            });
 
-        var rtpmap = SDPUtil.find_lines(remoteSDP.media[channel], 'a=rtpmap:');
-        rtpmap.forEach(function (val) {
-            // TODO: too much copy-paste
-            var rtpmap = SDPUtil.parse_rtpmap(val);
-            change.c('payload-type', rtpmap);
-            //
-            // put any 'a=fmtp:' + mline.fmt[j] lines into <param name=foo value=bar/>
-            /*
-            if (SDPUtil.find_line(remoteSDP.media[channel], 'a=fmtp:' + rtpmap.id)) {
-                tmp = SDPUtil.parse_fmtp(SDPUtil.find_line(remoteSDP.media[channel], 'a=fmtp:' + rtpmap.id));
-                for (var k = 0; k < tmp.length; k++) {
-                    change.c('parameter', tmp[k]).up();
+            var rtpmap = SDPUtil.find_lines(remoteSDP.media[channel], 'a=rtpmap:');
+            rtpmap.forEach(function (val) {
+                // TODO: too much copy-paste
+                var rtpmap = SDPUtil.parse_rtpmap(val);
+                change.c('payload-type', rtpmap);
+                //
+                // put any 'a=fmtp:' + mline.fmt[j] lines into <param name=foo value=bar/>
+                /*
+                if (SDPUtil.find_line(remoteSDP.media[channel], 'a=fmtp:' + rtpmap.id)) {
+                    tmp = SDPUtil.parse_fmtp(SDPUtil.find_line(remoteSDP.media[channel], 'a=fmtp:' + rtpmap.id));
+                    for (var k = 0; k < tmp.length; k++) {
+                        change.c('parameter', tmp[k]).up();
+                    }
                 }
-            }
-            */
-            change.up();
-        });
+                */
+                change.up();
+            });
+        }
+        else
+        {
+            var sctpmap = SDPUtil.find_line(remoteSDP.media[channel], 'a=sctpmap:');
+            change.c('sctpconnection', {
+                endpoint: $(this.channels[participant][channel]).attr('endpoint'),
+                expire: self.channelExpire,
+                port: SDPUtil.parse_sctpmap(sctpmap)[0]
+            });
+        }
         // now add transport
         remoteSDP.TransportToJingle(channel, change);
 
-        change.up(); // end of channel
+        change.up(); // end of channel/sctpconnection
         change.up(); // end of content
     }
     this.connection.sendIQ(change,
@@ -605,6 +766,19 @@ ColibriFocus.prototype.sendSSRCUpdate = function (sdpMediaSsrcs, fromJid, isadd)
 ColibriFocus.prototype.addSource = function (elem, fromJid) {
 
     var self = this;
+    // FIXME: dirty waiting
+    if (!this.peerconnection.localDescription)
+    {
+        console.warn("addSource - localDescription not ready yet")
+        setTimeout(function()
+            {
+                self.addSource(elem, fromJid);
+            },
+            200
+        );
+        return;
+    }
+
     this.peerconnection.addSource(elem);
 
     var peerSsrc = this.remotessrc[fromJid];
@@ -638,6 +812,19 @@ ColibriFocus.prototype.addSource = function (elem, fromJid) {
 ColibriFocus.prototype.removeSource = function (elem, fromJid) {
 
     var self = this;
+    // FIXME: dirty waiting
+    if (!self.peerconnection.localDescription)
+    {
+        console.warn("removeSource - localDescription not ready yet");
+        setTimeout(function()
+            {
+                self.removeSource(elem, fromJid);
+            },
+            200
+        );
+        return;
+    }
+
     this.peerconnection.removeSource(elem);
 
     var peerSsrc = this.remotessrc[fromJid];
@@ -675,8 +862,11 @@ ColibriFocus.prototype.setRemoteDescription = function (session, elem, desctype)
     this.remotessrc[session.peerjid] = [];
     for (channel = 0; channel < this.channels[participant].length; channel++) {
         //if (channel == 0) continue; FIXME: does not work as intended
-        if (SDPUtil.find_lines(remoteSDP.media[channel], 'a=ssrc:').length) {
-            this.remotessrc[session.peerjid][channel] = SDPUtil.find_lines(remoteSDP.media[channel], 'a=ssrc:').join('\r\n') + '\r\n';
+        if (SDPUtil.find_lines(remoteSDP.media[channel], 'a=ssrc:').length)
+        {
+            this.remotessrc[session.peerjid][channel] =
+                SDPUtil.find_lines(remoteSDP.media[channel], 'a=ssrc:')
+                        .join('\r\n') + '\r\n';
         }
     }
 
@@ -702,14 +892,27 @@ ColibriFocus.prototype.addIceCandidate = function (session, elem) {
     change.c('conference', {xmlns: 'http://jitsi.org/protocol/colibri', id: this.confid});
     $(elem).each(function () {
         var name = $(this).attr('name');
+
         var channel = name == 'audio' ? 0 : 1; // FIXME: search mlineindex in localdesc
+        if (name != 'audio' && name != 'video')
+            channel = 2; // name == 'data'
 
         change.c('content', {name: name});
-        change.c('channel', {
-            id: $(self.channels[participant][channel]).attr('id'),
-            endpoint: $(self.channels[participant][channel]).attr('endpoint'),
-            expire: '15'
-        });
+        if (name !== 'data')
+        {
+            change.c('channel', {
+                id: $(self.channels[participant][channel]).attr('id'),
+                endpoint: $(self.channels[participant][channel]).attr('endpoint'),
+                expire: self.channelExpire
+            });
+        }
+        else
+        {
+            change.c('sctpconnection', {
+                endpoint: $(self.channels[participant][channel]).attr('endpoint'),
+                expire: self.channelExpire
+            });
+        }
         $(this).find('>transport').each(function () {
             change.c('transport', {
                 ufrag: $(this).attr('ufrag'),
@@ -729,7 +932,7 @@ ColibriFocus.prototype.addIceCandidate = function (session, elem) {
             });
             change.up(); // end of transport
         });
-        change.up(); // end of channel
+        change.up(); // end of channel/sctpconnection
         change.up(); // end of content
     });
     // FIXME: need to check if there is at least one candidate when filtering TCP ones
@@ -769,21 +972,35 @@ ColibriFocus.prototype.sendIceCandidates = function (candidates) {
     mycands.c('conference', {xmlns: 'http://jitsi.org/protocol/colibri', id: this.confid});
     // FIXME: multi-candidate logic is taken from strophe.jingle, should be refactored there
     var localSDP = new SDP(this.peerconnection.localDescription.sdp);
-    for (var mid = 0; mid < localSDP.media.length; mid++) {
+    for (var mid = 0; mid < localSDP.media.length; mid++)
+    {
         var cands = candidates.filter(function (el) { return el.sdpMLineIndex == mid; });
-        if (cands.length > 0) {
-            mycands.c('content', {name: cands[0].sdpMid });
-            mycands.c('channel', {
-                id: $(this.mychannel[cands[0].sdpMLineIndex]).attr('id'),
-                endpoint: $(this.mychannel[cands[0].sdpMLineIndex]).attr('endpoint'),
-                expire: '15'
-            });
+        if (cands.length > 0)
+        {
+            var name = cands[0].sdpMid;
+            mycands.c('content', {name: name });
+            if (name !== 'data')
+            {
+                mycands.c('channel', {
+                    id: $(this.mychannel[cands[0].sdpMLineIndex]).attr('id'),
+                    endpoint: $(this.mychannel[cands[0].sdpMLineIndex]).attr('endpoint'),
+                    expire: self.channelExpire
+                });
+            }
+            else
+            {
+                mycands.c('sctpconnection', {
+                    endpoint: $(this.mychannel[cands[0].sdpMLineIndex]).attr('endpoint'),
+                    port: $(this.mychannel[cands[0].sdpMLineIndex]).attr('port'),
+                    expire: self.channelExpire
+                });
+            }
             mycands.c('transport', {xmlns: 'urn:xmpp:jingle:transports:ice-udp:1'});
             for (var i = 0; i < cands.length; i++) {
                 mycands.c('candidate', SDPUtil.candidateToJingle(cands[i].candidate)).up();
             }
             mycands.up(); // transport
-            mycands.up(); // channel
+            mycands.up(); // channel / sctpconnection
             mycands.up(); // content
         }
     }
@@ -814,13 +1031,26 @@ ColibriFocus.prototype.terminate = function (session, reason) {
     var change = $iq({to: this.bridgejid, type: 'set'});
     change.c('conference', {xmlns: 'http://jitsi.org/protocol/colibri', id: this.confid});
     for (var channel = 0; channel < this.channels[participant].length; channel++) {
-        change.c('content', {name: channel === 0 ? 'audio' : 'video'});
-        change.c('channel', {
-            id: $(this.channels[participant][channel]).attr('id'),
-            endpoint: $(this.channels[participant][channel]).attr('endpoint'),
-            expire: '0'
-        });
-        change.up(); // end of channel
+        var name = channel === 0 ? 'audio' : 'video';
+        if (channel == 2)
+            name = 'data';
+        change.c('content', {name: name});
+        if (name !== 'data')
+        {
+            change.c('channel', {
+                id: $(this.channels[participant][channel]).attr('id'),
+                endpoint: $(this.channels[participant][channel]).attr('endpoint'),
+                expire: '0'
+            });
+        }
+        else
+        {
+            change.c('sctpconnection', {
+                endpoint: $(this.channels[participant][channel]).attr('endpoint'),
+                expire: '0'
+            });
+        }
+        change.up(); // end of channel/sctpconnection
         change.up(); // end of content
     }
     this.connection.sendIQ(change,

libs/popover.js

@@ -0,0 +1,110 @@
+/* ========================================================================
+ * Bootstrap: popover.js v3.1.1
+ * http://getbootstrap.com/javascript/#popovers
+ * ========================================================================
+ * Copyright 2011-2014 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // POPOVER PUBLIC CLASS DEFINITION
+  // ===============================
+
+  var Popover = function (element, options) {
+    this.init('popover', element, options)
+  }
+
+  if (!$.fn.tooltip) throw new Error('Popover requires tooltip.js')
+
+  Popover.DEFAULTS = $.extend({}, $.fn.tooltip.Constructor.DEFAULTS, {
+    placement: 'right',
+    trigger: 'click',
+    content: '',
+    template: '<div class="popover"><div class="arrow"></div><h3 class="popover-title"></h3><div class="popover-content"></div></div>'
+  })
+
+
+  // NOTE: POPOVER EXTENDS tooltip.js
+  // ================================
+
+  Popover.prototype = $.extend({}, $.fn.tooltip.Constructor.prototype)
+
+  Popover.prototype.constructor = Popover
+
+  Popover.prototype.getDefaults = function () {
+    return Popover.DEFAULTS
+  }
+
+  Popover.prototype.setContent = function () {
+    var $tip    = this.tip()
+    var title   = this.getTitle()
+    var content = this.getContent()
+
+    $tip.find('.popover-title')[this.options.html ? 'html' : 'text'](title)
+    $tip.find('.popover-content')[ // we use append for html objects to maintain js events
+      this.options.html ? (typeof content == 'string' ? 'html' : 'append') : 'text'
+    ](content)
+
+    $tip.removeClass('fade top bottom left right in')
+
+    // IE8 doesn't accept hiding via the `:empty` pseudo selector, we have to do
+    // this manually by checking the contents.
+    if (!$tip.find('.popover-title').html()) $tip.find('.popover-title').hide()
+  }
+
+  Popover.prototype.hasContent = function () {
+    return this.getTitle() || this.getContent()
+  }
+
+  Popover.prototype.getContent = function () {
+    var $e = this.$element
+    var o  = this.options
+
+    return $e.attr('data-content')
+      || (typeof o.content == 'function' ?
+            o.content.call($e[0]) :
+            o.content)
+  }
+
+  Popover.prototype.arrow = function () {
+    return this.$arrow = this.$arrow || this.tip().find('.arrow')
+  }
+
+  Popover.prototype.tip = function () {
+    if (!this.$tip) this.$tip = $(this.options.template)
+    return this.$tip
+  }
+
+
+  // POPOVER PLUGIN DEFINITION
+  // =========================
+
+  var old = $.fn.popover
+
+  $.fn.popover = function (option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.popover')
+      var options = typeof option == 'object' && option
+
+      if (!data && option == 'destroy') return
+      if (!data) $this.data('bs.popover', (data = new Popover(this, options)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  $.fn.popover.Constructor = Popover
+
+
+  // POPOVER NO CONFLICT
+  // ===================
+
+  $.fn.popover.noConflict = function () {
+    $.fn.popover = old
+    return this
+  }
+
+}(jQuery);

libs/strophe/strophe.jingle.adapter.js

@@ -5,7 +5,7 @@ function TraceablePeerConnection(ice_config, constraints) {
     this.updateLog = [];
     this.stats = {};
     this.statsinterval = null;
-    this.maxstats = 300; // limit to 300 values, i.e. 5 minutes; set to 0 to disable
+    this.maxstats = 0; // limit to 300 values, i.e. 5 minutes; set to 0 to disable
 
     /**
      * Array of ssrcs that will be added on next modifySources call.
@@ -32,7 +32,7 @@ function TraceablePeerConnection(ice_config, constraints) {
     this.switchstreams = false;
 
     // override as desired
-    this.trace = function(what, info) {
+    this.trace = function (what, info) {
         //console.warn('WTRACE', what, info);
         self.updateLog.push({
             time: new Date(),
@@ -88,8 +88,8 @@ function TraceablePeerConnection(ice_config, constraints) {
         if (self.ondatachannel !== null) {
             self.ondatachannel(event);
         }
-    }
-    if (!navigator.mozGetUserMedia) {
+    };
+    if (!navigator.mozGetUserMedia && this.maxstats) {
         this.statsinterval = window.setInterval(function() {
             self.peerconnection.getStats(function(stats) {
                 var results = stats.result();
@@ -144,8 +144,8 @@ TraceablePeerConnection.prototype.removeStream = function (stream) {
 
 TraceablePeerConnection.prototype.createDataChannel = function (label, opts) {
     this.trace('createDataChannel', label, opts);
-    this.peerconnection.createDataChannel(label, opts);
-}
+    return this.peerconnection.createDataChannel(label, opts);
+};
 
 TraceablePeerConnection.prototype.setLocalDescription = function (description, successCallback, failureCallback) {
     var self = this;

libs/strophe/strophe.jingle.sdp.js

@@ -155,7 +155,10 @@ SDP.prototype.toJingle = function (elem, thecreator) {
     }
     for (i = 0; i < this.media.length; i++) {
         mline = SDPUtil.parse_mline(this.media[i].split('\r\n')[0]);
-        if (!(mline.media == 'audio' || mline.media == 'video')) {
+        if (!(mline.media === 'audio' ||
+              mline.media === 'video' ||
+              mline.media === 'application'))
+        {
             continue;
         }
         if (SDPUtil.find_line(this.media[i], 'a=ssrc:')) {
@@ -171,12 +174,14 @@ SDP.prototype.toJingle = function (elem, thecreator) {
             elem.attrs({ name: mid });
 
             // old BUNDLE plan, to be removed
-            if (bundle.indexOf(mid) != -1) {
+            if (bundle.indexOf(mid) !== -1) {
                 elem.c('bundle', {xmlns: 'http://estos.de/ns/bundle'}).up();
                 bundle.splice(bundle.indexOf(mid), 1);
             }
         }
-        if (SDPUtil.find_line(this.media[i], 'a=rtpmap:').length) {
+
+        if (SDPUtil.find_line(this.media[i], 'a=rtpmap:').length)
+        {
             elem.c('description',
                 {xmlns: 'urn:xmpp:jingle:apps:rtp:1',
                     media: mline.media });
@@ -304,6 +309,26 @@ SDP.prototype.TransportToJingle = function (mediaindex, elem) {
     var self = this;
     elem.c('transport');
 
+    // XEP-0343 DTLS/SCTP
+    if (SDPUtil.find_line(this.media[mediaindex], 'a=sctpmap:').length)
+    {
+        var sctpmap = SDPUtil.find_line(
+            this.media[i], 'a=sctpmap:', self.session);
+        if (sctpmap)
+        {
+            var sctpAttrs = SDPUtil.parse_sctpmap(sctpmap);
+            elem.c('sctpmap',
+                {
+                    xmlns: 'urn:xmpp:jingle:transports:dtls-sctp:1',
+                    number: sctpAttrs[0], /* SCTP port */
+                    protocol: sctpAttrs[1], /* protocol */
+                });
+            // Optional stream count attribute
+            if (sctpAttrs.length > 2)
+                elem.attrs({ streams: sctpAttrs[2]});
+            elem.up();
+        }
+    }
     // XEP-0320
     var fingerprints = SDPUtil.find_lines(this.media[mediaindex], 'a=fingerprint:', this.session);
     fingerprints.forEach(function(line) {
@@ -438,6 +463,8 @@ SDP.prototype.jingle2media = function (content) {
         ssrc = desc.attr('ssrc'),
         self = this,
         tmp;
+    var sctp = content.find(
+        '>transport>sctpmap[xmlns="urn:xmpp:jingle:transports:dtls-sctp:1"]');
 
     tmp = { media: desc.attr('media') };
     tmp.port = '1';
@@ -446,14 +473,35 @@ SDP.prototype.jingle2media = function (content) {
         tmp.port = '0';
     }
     if (content.find('>transport>fingerprint').length || desc.find('encryption').length) {
-        tmp.proto = 'RTP/SAVPF';
+        if (sctp.length)
+            tmp.proto = 'DTLS/SCTP';
+        else
+            tmp.proto = 'RTP/SAVPF';
     } else {
         tmp.proto = 'RTP/AVPF';
     }
-    tmp.fmt = desc.find('payload-type').map(function () { return this.getAttribute('id'); }).get();
-    media += SDPUtil.build_mline(tmp) + '\r\n';
+    if (!sctp.length)
+    {
+        tmp.fmt = desc.find('payload-type').map(
+            function () { return this.getAttribute('id'); }).get();
+        media += SDPUtil.build_mline(tmp) + '\r\n';
+    }
+    else
+    {
+        media += 'm=application 1 DTLS/SCTP ' + sctp.attr('number') + '\r\n';
+        media += 'a=sctpmap:' + sctp.attr('number') +
+            ' ' + sctp.attr('protocol');
+
+        var streamCount = sctp.attr('streams');
+        if (streamCount)
+            media += ' ' + streamCount + '\r\n';
+        else
+            media += '\r\n';
+    }
+
     media += 'c=IN IP4 0.0.0.0\r\n';
-    media += 'a=rtcp:1 IN IP4 0.0.0.0\r\n';
+    if (!sctp.length)
+        media += 'a=rtcp:1 IN IP4 0.0.0.0\r\n';
     tmp = content.find('>transport[xmlns="urn:xmpp:jingle:transports:ice-udp:1"]');
     if (tmp.length) {
         if (tmp.attr('ufrag')) {

libs/strophe/strophe.jingle.sdp.util.js

@@ -90,6 +90,20 @@ SDPUtil = {
         data.channels = parts.length ? parts.shift() : '1';
         return data;
     },
+    /**
+     * Parses SDP line "a=sctpmap:..." and extracts SCTP port from it.
+     * @param line eg. "a=sctpmap:5000 webrtc-datachannel"
+     * @returns [SCTP port number, protocol, streams]
+     */
+    parse_sctpmap: function (line)
+    {
+        var parts = line.substring(10).split(' ');
+        var sctpPort = parts[0];
+        var protocol = parts[1];
+        // Stream count is optional
+        var streamCount = parts.length > 2 ? parts[2] : null;
+        return [sctpPort, protocol, streamCount];// SCTP port
+    },
     build_rtpmap: function (el) {
         var line = 'a=rtpmap:' + el.getAttribute('id') + ' ' + el.getAttribute('name') + '/' + el.getAttribute('clockrate');
         if (el.getAttribute('channels') && el.getAttribute('channels') != '1') {
@@ -269,7 +283,9 @@ SDPUtil = {
     candidateToJingle: function (line) {
         // a=candidate:2979166662 1 udp 2113937151 192.168.2.100 57698 typ host generation 0
         //      <candidate component=... foundation=... generation=... id=... ip=... network=... port=... priority=... protocol=... type=.../>
-        if (line.substring(0, 12) != 'a=candidate:') {
+        if (line.indexOf('candidate:') == 0) {
+            line = 'a=' + line;
+        } else if (line.substring(0, 12) != 'a=candidate:') {
             console.log('parseCandidate called with a line that is not a candidate line');
             console.log(line);
             return null;

libs/strophe/strophe.jingle.session.js

@@ -420,6 +420,7 @@ JingleSession.prototype.setRemoteDescription = function (elem, desctype) {
         },
         function (e) {
             console.error('setRemoteDescription error', e);
+            $(document).trigger('fatalError.jingle', [self, e]);
         }
     );
 };

libs/strophe/strophe.jingle.sessionbase.js

@@ -23,6 +23,20 @@ SessionBase.prototype.modifySources = function (successCallback) {
 
 SessionBase.prototype.addSource = function (elem, fromJid) {
 
+    var self = this;
+    // FIXME: dirty waiting
+    if (!this.peerconnection.localDescription)
+    {
+        console.warn("addSource - localDescription not ready yet")
+        setTimeout(function()
+            {
+                self.addSource(elem, fromJid);
+            },
+            200
+        );
+        return;
+    }
+
     this.peerconnection.addSource(elem);
 
     this.modifySources();
@@ -30,6 +44,20 @@ SessionBase.prototype.addSource = function (elem, fromJid) {
 
 SessionBase.prototype.removeSource = function (elem, fromJid) {
 
+    var self = this;
+    // FIXME: dirty waiting
+    if (!this.peerconnection.localDescription)
+    {
+        console.warn("removeSource - localDescription not ready yet")
+        setTimeout(function()
+            {
+                self.removeSource(elem, fromJid);
+            },
+            200
+        );
+        return;
+    }
+
     this.peerconnection.removeSource(elem);
 
     this.modifySources();

libs/tooltip.js

@@ -0,0 +1,399 @@
+/* ========================================================================
+ * Bootstrap: tooltip.js v3.1.1
+ * http://getbootstrap.com/javascript/#tooltip
+ * Inspired by the original jQuery.tipsy by Jason Frame
+ * ========================================================================
+ * Copyright 2011-2014 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // TOOLTIP PUBLIC CLASS DEFINITION
+  // ===============================
+
+  var Tooltip = function (element, options) {
+    this.type       =
+    this.options    =
+    this.enabled    =
+    this.timeout    =
+    this.hoverState =
+    this.$element   = null
+
+    this.init('tooltip', element, options)
+  }
+
+  Tooltip.DEFAULTS = {
+    animation: true,
+    placement: 'top',
+    selector: false,
+    template: '<div class="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
+    trigger: 'hover focus',
+    title: '',
+    delay: 0,
+    html: false,
+    container: false
+  }
+
+  Tooltip.prototype.init = function (type, element, options) {
+    this.enabled  = true
+    this.type     = type
+    this.$element = $(element)
+    this.options  = this.getOptions(options)
+
+    var triggers = this.options.trigger.split(' ')
+
+    for (var i = triggers.length; i--;) {
+      var trigger = triggers[i]
+
+      if (trigger == 'click') {
+        this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this))
+      } else if (trigger != 'manual') {
+        var eventIn  = trigger == 'hover' ? 'mouseenter' : 'focusin'
+        var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout'
+
+        this.$element.on(eventIn  + '.' + this.type, this.options.selector, $.proxy(this.enter, this))
+        this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this))
+      }
+    }
+
+    this.options.selector ?
+      (this._options = $.extend({}, this.options, { trigger: 'manual', selector: '' })) :
+      this.fixTitle()
+  }
+
+  Tooltip.prototype.getDefaults = function () {
+    return Tooltip.DEFAULTS
+  }
+
+  Tooltip.prototype.getOptions = function (options) {
+    options = $.extend({}, this.getDefaults(), this.$element.data(), options)
+
+    if (options.delay && typeof options.delay == 'number') {
+      options.delay = {
+        show: options.delay,
+        hide: options.delay
+      }
+    }
+
+    return options
+  }
+
+  Tooltip.prototype.getDelegateOptions = function () {
+    var options  = {}
+    var defaults = this.getDefaults()
+
+    this._options && $.each(this._options, function (key, value) {
+      if (defaults[key] != value) options[key] = value
+    })
+
+    return options
+  }
+
+  Tooltip.prototype.enter = function (obj) {
+    var self = obj instanceof this.constructor ?
+      obj : $(obj.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type)
+
+    clearTimeout(self.timeout)
+
+    self.hoverState = 'in'
+
+    if (!self.options.delay || !self.options.delay.show) return self.show()
+
+    self.timeout = setTimeout(function () {
+      if (self.hoverState == 'in') self.show()
+    }, self.options.delay.show)
+  }
+
+  Tooltip.prototype.leave = function (obj) {
+    var self = obj instanceof this.constructor ?
+      obj : $(obj.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type)
+
+    clearTimeout(self.timeout)
+
+    self.hoverState = 'out'
+
+    if (!self.options.delay || !self.options.delay.hide) return self.hide()
+
+    self.timeout = setTimeout(function () {
+      if (self.hoverState == 'out') self.hide()
+    }, self.options.delay.hide)
+  }
+
+  Tooltip.prototype.show = function () {
+    var e = $.Event('show.bs.' + this.type)
+
+    if (this.hasContent() && this.enabled) {
+      this.$element.trigger(e)
+
+      if (e.isDefaultPrevented()) return
+      var that = this;
+
+      var $tip = this.tip()
+
+      this.setContent()
+
+      if (this.options.animation) $tip.addClass('fade')
+
+      var placement = typeof this.options.placement == 'function' ?
+        this.options.placement.call(this, $tip[0], this.$element[0]) :
+        this.options.placement
+
+      var autoToken = /\s?auto?\s?/i
+      var autoPlace = autoToken.test(placement)
+      if (autoPlace) placement = placement.replace(autoToken, '') || 'top'
+
+      $tip
+        .detach()
+        .css({ top: 0, left: 0, display: 'block' })
+        .addClass(placement)
+
+      this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element)
+
+      var pos          = this.getPosition()
+      var actualWidth  = $tip[0].offsetWidth
+      var actualHeight = $tip[0].offsetHeight
+
+      if (autoPlace) {
+        var $parent = this.$element.parent()
+
+        var orgPlacement = placement
+        var docScroll    = document.documentElement.scrollTop || document.body.scrollTop
+        var parentWidth  = this.options.container == 'body' ? window.innerWidth  : $parent.outerWidth()
+        var parentHeight = this.options.container == 'body' ? window.innerHeight : $parent.outerHeight()
+        var parentLeft   = this.options.container == 'body' ? 0 : $parent.offset().left
+
+        placement = placement == 'bottom' && pos.top   + pos.height  + actualHeight - docScroll > parentHeight  ? 'top'    :
+                    placement == 'top'    && pos.top   - docScroll   - actualHeight < 0                         ? 'bottom' :
+                    placement == 'right'  && pos.right + actualWidth > parentWidth                              ? 'left'   :
+                    placement == 'left'   && pos.left  - actualWidth < parentLeft                               ? 'right'  :
+                    placement
+
+        $tip
+          .removeClass(orgPlacement)
+          .addClass(placement)
+      }
+
+      var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight)
+
+      this.applyPlacement(calculatedOffset, placement)
+      this.hoverState = null
+
+      var complete = function() {
+        that.$element.trigger('shown.bs.' + that.type)
+      }
+
+      $.support.transition && this.$tip.hasClass('fade') ?
+        $tip
+          .one($.support.transition.end, complete)
+          .emulateTransitionEnd(150) :
+        complete()
+    }
+  }
+
+  Tooltip.prototype.applyPlacement = function (offset, placement) {
+    var replace
+    var $tip   = this.tip()
+    var width  = $tip[0].offsetWidth
+    var height = $tip[0].offsetHeight
+
+    // manually read margins because getBoundingClientRect includes difference
+    var marginTop = parseInt($tip.css('margin-top'), 10)
+    var marginLeft = parseInt($tip.css('margin-left'), 10)
+
+    // we must check for NaN for ie 8/9
+    if (isNaN(marginTop))  marginTop  = 0
+    if (isNaN(marginLeft)) marginLeft = 0
+
+    offset.top  = offset.top  + marginTop
+    offset.left = offset.left + marginLeft
+
+    // $.fn.offset doesn't round pixel values
+    // so we use setOffset directly with our own function B-0
+    $.offset.setOffset($tip[0], $.extend({
+      using: function (props) {
+        $tip.css({
+          top: Math.round(props.top),
+          left: Math.round(props.left)
+        })
+      }
+    }, offset), 0)
+
+    $tip.addClass('in')
+
+    // check to see if placing tip in new offset caused the tip to resize itself
+    var actualWidth  = $tip[0].offsetWidth
+    var actualHeight = $tip[0].offsetHeight
+
+    if (placement == 'top' && actualHeight != height) {
+      replace = true
+      offset.top = offset.top + height - actualHeight
+    }
+
+    if (/bottom|top/.test(placement)) {
+      var delta = 0
+
+      if (offset.left < 0) {
+        delta       = offset.left * -2
+        offset.left = 0
+
+        $tip.offset(offset)
+
+        actualWidth  = $tip[0].offsetWidth
+        actualHeight = $tip[0].offsetHeight
+      }
+
+      this.replaceArrow(delta - width + actualWidth, actualWidth, 'left')
+    } else {
+      this.replaceArrow(actualHeight - height, actualHeight, 'top')
+    }
+
+    if (replace) $tip.offset(offset)
+  }
+
+  Tooltip.prototype.replaceArrow = function (delta, dimension, position) {
+    this.arrow().css(position, delta ? (50 * (1 - delta / dimension) + '%') : '')
+  }
+
+  Tooltip.prototype.setContent = function () {
+    var $tip  = this.tip()
+    var title = this.getTitle()
+
+    $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title)
+    $tip.removeClass('fade in top bottom left right')
+  }
+
+  Tooltip.prototype.hide = function () {
+    var that = this
+    var $tip = this.tip()
+    var e    = $.Event('hide.bs.' + this.type)
+
+    function complete() {
+      if (that.hoverState != 'in') $tip.detach()
+      that.$element.trigger('hidden.bs.' + that.type)
+    }
+
+    this.$element.trigger(e)
+
+    if (e.isDefaultPrevented()) return
+
+    $tip.removeClass('in')
+
+    $.support.transition && this.$tip.hasClass('fade') ?
+      $tip
+        .one($.support.transition.end, complete)
+        .emulateTransitionEnd(150) :
+      complete()
+
+    this.hoverState = null
+
+    return this
+  }
+
+  Tooltip.prototype.fixTitle = function () {
+    var $e = this.$element
+    if ($e.attr('title') || typeof($e.attr('data-original-title')) != 'string') {
+      $e.attr('data-original-title', $e.attr('title') || '').attr('title', '')
+    }
+  }
+
+  Tooltip.prototype.hasContent = function () {
+    return this.getTitle()
+  }
+
+  Tooltip.prototype.getPosition = function () {
+    var el = this.$element[0]
+    return $.extend({}, (typeof el.getBoundingClientRect == 'function') ? el.getBoundingClientRect() : {
+      width: el.offsetWidth,
+      height: el.offsetHeight
+    }, this.$element.offset())
+  }
+
+  Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) {
+    return placement == 'bottom' ? { top: pos.top + pos.height,   left: pos.left + pos.width / 2 - actualWidth / 2  } :
+           placement == 'top'    ? { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2  } :
+           placement == 'left'   ? { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } :
+        /* placement == 'right' */ { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width   }
+  }
+
+  Tooltip.prototype.getTitle = function () {
+    var title
+    var $e = this.$element
+    var o  = this.options
+
+    title = $e.attr('data-original-title')
+      || (typeof o.title == 'function' ? o.title.call($e[0]) :  o.title)
+
+    return title
+  }
+
+  Tooltip.prototype.tip = function () {
+    return this.$tip = this.$tip || $(this.options.template)
+  }
+
+  Tooltip.prototype.arrow = function () {
+    return this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow')
+  }
+
+  Tooltip.prototype.validate = function () {
+    if (!this.$element[0].parentNode) {
+      this.hide()
+      this.$element = null
+      this.options  = null
+    }
+  }
+
+  Tooltip.prototype.enable = function () {
+    this.enabled = true
+  }
+
+  Tooltip.prototype.disable = function () {
+    this.enabled = false
+  }
+
+  Tooltip.prototype.toggleEnabled = function () {
+    this.enabled = !this.enabled
+  }
+
+  Tooltip.prototype.toggle = function (e) {
+    var self = e ? $(e.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type) : this
+    self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
+  }
+
+  Tooltip.prototype.destroy = function () {
+    clearTimeout(this.timeout)
+    this.hide().$element.off('.' + this.type).removeData('bs.' + this.type)
+  }
+
+
+  // TOOLTIP PLUGIN DEFINITION
+  // =========================
+
+  var old = $.fn.tooltip
+
+  $.fn.tooltip = function (option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.tooltip')
+      var options = typeof option == 'object' && option
+
+      if (!data && option == 'destroy') return
+      if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  $.fn.tooltip.Constructor = Tooltip
+
+
+  // TOOLTIP NO CONFLICT
+  // ===================
+
+  $.fn.tooltip.noConflict = function () {
+    $.fn.tooltip = old
+    return this
+  }
+
+}(jQuery);

local_stats.js

@@ -0,0 +1,97 @@
+/**
+ * Provides statistics for the local stream.
+ */
+var LocalStatsCollector = (function() {
+    /**
+     * Size of the webaudio analizer buffer.
+     * @type {number}
+     */
+    var WEBAUDIO_ANALIZER_FFT_SIZE = 512;
+
+    /**
+     * Value of the webaudio analizer smoothing time parameter.
+     * @type {number}
+     */
+    var WEBAUDIO_ANALIZER_SMOOTING_TIME = 0.1;
+
+    /**
+     * <tt>LocalStatsCollector</tt> calculates statistics for the local stream.
+     *
+     * @param stream the local stream
+     * @param interval stats refresh interval given in ms.
+     * @param {function(LocalStatsCollector)} updateCallback the callback called on stats
+     *                                   update.
+     * @constructor
+     */
+    function LocalStatsCollectorProto(stream, interval, updateCallback) {
+        window.AudioContext = window.AudioContext || window.webkitAudioContext;
+        this.stream = stream;
+        this.intervalId = null;
+        this.intervalMilis = interval;
+        this.updateCallback = updateCallback;
+        this.audioLevel = 0;
+    }
+
+
+    /**
+     * Starts the collecting the statistics.
+     */
+    LocalStatsCollectorProto.prototype.start = function () {
+        if (!window.AudioContext)
+            return;
+
+        var context = new AudioContext();
+        var analyser = context.createAnalyser();
+        analyser.smoothingTimeConstant = WEBAUDIO_ANALIZER_SMOOTING_TIME;
+        analyser.fftSize = WEBAUDIO_ANALIZER_FFT_SIZE;
+
+
+        var source = context.createMediaStreamSource(this.stream);
+        source.connect(analyser);
+
+
+        var self = this;
+
+        this.intervalId = setInterval(
+            function () {
+                var array = new Uint8Array(analyser.frequencyBinCount);
+                analyser.getByteFrequencyData(array);
+                self.audioLevel = FrequencyDataToAudioLevel(array);
+                self.updateCallback(self);
+            },
+            this.intervalMilis
+        );
+
+    }
+
+    /**
+     * Stops collecting the statistics.
+     */
+    LocalStatsCollectorProto.prototype.stop = function () {
+        if (this.intervalId) {
+            clearInterval(this.intervalId);
+            this.intervalId = null;
+        }
+    }
+
+
+    /**
+     * Converts frequency data array to audio level.
+     * @param array the frequency data array.
+     * @returns {number} the audio level
+     */
+    var FrequencyDataToAudioLevel = function (array) {
+        var maxVolume = 0;
+
+        var length = array.length;
+
+        for (var i = 0; i < length; i++) {
+            if (maxVolume < array[i])
+                maxVolume = array[i];
+        }
+
+        return maxVolume / 255;
+    }
+
+    return LocalStatsCollectorProto;
+})();

muc.js

@@ -21,6 +21,9 @@ Strophe.addConnectionPlugin('emuc', {
     },
     doJoin: function (jid, password) {
         this.myroomjid = jid;
+
+        console.info("Joined MUC as " + this.myroomjid);
+
         this.initPresenceMap(this.myroomjid);
 
         if (!this.roomjid) {
@@ -167,12 +170,36 @@ Strophe.addConnectionPlugin('emuc', {
         }
         this.connection.send(msg);
     },
+    setSubject: function (subject){
+        var msg = $msg({to: this.roomjid, type: 'groupchat'});
+        msg.c('subject', subject);
+        this.connection.send(msg);
+        console.log("topic changed to " + subject);
+    },
     onMessage: function (msg) {
-        var txt = $(msg).find('>body').text();
-        // TODO: <subject/>
         // FIXME: this is a hack. but jingle on muc makes nickchanges hard
         var from = msg.getAttribute('from');
         var nick = $(msg).find('>nick[xmlns="http://jabber.org/protocol/nick"]').text() || Strophe.getResourceFromJid(from);
+
+        var txt = $(msg).find('>body').text();
+        var type = msg.getAttribute("type");
+        if(type == "error")
+        {
+            Chat.chatAddError($(msg).find('>text').text(), txt);
+            return true;
+        }
+
+        var subject = $(msg).find('>subject');
+        if(subject.length)
+        {
+            var subjectText = subject.text();
+            if(subjectText || subjectText == "") {
+                Chat.chatSetSubject(subjectText);
+                console.log("Subject is changed to " + subjectText);
+            }
+        }
+
+
         if (txt) {
             console.log('chat', nick, txt);
 

prezi.js

@@ -19,10 +19,10 @@ var Prezi = (function (my) {
             $(document).trigger("video.selected", [true]);
 
             $('#largeVideo').fadeOut(300, function () {
-                setLargeVideoVisible(false);
+                VideoLayout.setLargeVideoVisible(false);
                 $('#presentation>iframe').fadeIn(300, function() {
                     $('#presentation>iframe').css({opacity:'1'});
-                    dockToolbar(true);
+                    Toolbar.dockToolbar(true);
                 });
             });
         }
@@ -32,8 +32,8 @@ var Prezi = (function (my) {
                     $('#presentation>iframe').css({opacity:'0'});
                     $('#reloadPresentation').css({display:'none'});
                     $('#largeVideo').fadeIn(300, function() {
-                        setLargeVideoVisible(true);
-                        dockToolbar(false);
+                        VideoLayout.setLargeVideoVisible(true);
+                        Toolbar.dockToolbar(false);
                     });
                 });
             }
@@ -177,8 +177,8 @@ var Prezi = (function (my) {
         // We explicitly don't specify the peer jid here, because we don't want
         // this video to be dealt with as a peer related one (for example we
         // don't want to show a mute/kick menu for this one, etc.).
-        addRemoteVideoContainer(null, elementId);
-        resizeThumbnails();
+        VideoLayout.addRemoteVideoContainer(null, elementId);
+        VideoLayout.resizeThumbnails();
 
         var controlsEnabled = false;
         if (jid === connection.emuc.myroomjid)

rtp_stats.js

@@ -0,0 +1,287 @@
+/* global ssrc2jid */
+
+/**
+ * Function object which once created can be used to calculate moving average of
+ * given period. Example for SMA3:</br>
+ * var sma3 = new SimpleMovingAverager(3);
+ * while(true) // some update loop
+ * {
+ *   var currentSma3Value = sma3(nextInputValue);
+ * }
+ *
+ * @param period moving average period that will be used by created instance.
+ * @returns {Function} SMA calculator function of given <tt>period</tt>.
+ * @constructor
+ */
+function SimpleMovingAverager(period)
+{
+    var nums = [];
+    return function (num)
+    {
+        nums.push(num);
+        if (nums.length > period)
+            nums.splice(0, 1);
+        var sum = 0;
+        for (var i in nums)
+            sum += nums[i];
+        var n = period;
+        if (nums.length < period)
+            n = nums.length;
+        return (sum / n);
+    };
+}
+
+/**
+ * Peer statistics data holder.
+ * @constructor
+ */
+function PeerStats()
+{
+    this.ssrc2Loss = {};
+    this.ssrc2AudioLevel = {};
+}
+
+/**
+ * Sets packets loss rate for given <tt>ssrc</tt> that blong to the peer
+ * represented by this instance.
+ * @param ssrc audio or video RTP stream SSRC.
+ * @param lossRate new packet loss rate value to be set.
+ */
+PeerStats.prototype.setSsrcLoss = function (ssrc, lossRate)
+{
+    this.ssrc2Loss[ssrc] = lossRate;
+};
+
+/**
+ * Sets new audio level(input or output) for given <tt>ssrc</tt> that identifies
+ * the stream which belongs to the peer represented by this instance.
+ * @param ssrc RTP stream SSRC for which current audio level value will be
+ *        updated.
+ * @param audioLevel the new audio level value to be set. Value is truncated to
+ *        fit the range from 0 to 1.
+ */
+PeerStats.prototype.setSsrcAudioLevel = function (ssrc, audioLevel)
+{
+    // Range limit 0 - 1
+    this.ssrc2AudioLevel[ssrc] = Math.min(Math.max(audioLevel, 0), 1);
+};
+
+/**
+ * Calculates average packet loss for all streams that belong to the peer
+ * represented by this instance.
+ * @returns {number} average packet loss for all streams that belong to the peer
+ *                   represented by this instance.
+ */
+PeerStats.prototype.getAvgLoss = function ()
+{
+    var self = this;
+    var avg = 0;
+    var count = Object.keys(this.ssrc2Loss).length;
+    Object.keys(this.ssrc2Loss).forEach(
+        function (ssrc)
+        {
+            avg += self.ssrc2Loss[ssrc];
+        }
+    );
+    return count > 0 ? avg / count : 0;
+};
+
+/**
+ * <tt>StatsCollector</tt> registers for stats updates of given
+ * <tt>peerconnection</tt> in given <tt>interval</tt>. On each update particular
+ * stats are extracted and put in {@link PeerStats} objects. Once the processing
+ * is done <tt>updateCallback</tt> is called with <tt>this</tt> instance as
+ * an event source.
+ *
+ * @param peerconnection webRTC peer connection object.
+ * @param interval stats refresh interval given in ms.
+ * @param {function(StatsCollector)} updateCallback the callback called on stats
+ *                                   update.
+ * @constructor
+ */
+function StatsCollector(peerconnection, interval, updateCallback)
+{
+    this.peerconnection = peerconnection;
+    this.baselineReport = null;
+    this.currentReport = null;
+    this.intervalId = null;
+    // Updates stats interval
+    this.intervalMilis = interval;
+    // Use SMA 3 to average packet loss changes over time
+    this.sma3 = new SimpleMovingAverager(3);
+    // Map of jids to PeerStats
+    this.jid2stats = {};
+
+    this.updateCallback = updateCallback;
+}
+
+/**
+ * Stops stats updates.
+ */
+StatsCollector.prototype.stop = function ()
+{
+    if (this.intervalId)
+    {
+        clearInterval(this.intervalId);
+        this.intervalId = null;
+    }
+};
+
+/**
+ * Callback passed to <tt>getStats</tt> method.
+ * @param error an error that occurred on <tt>getStats</tt> call.
+ */
+StatsCollector.prototype.errorCallback = function (error)
+{
+    console.error("Get stats error", error);
+    this.stop();
+};
+
+/**
+ * Starts stats updates.
+ */
+StatsCollector.prototype.start = function ()
+{
+    var self = this;
+    this.intervalId = setInterval(
+        function ()
+        {
+            // Interval updates
+            self.peerconnection.getStats(
+                function (report)
+                {
+                    var results = report.result();
+                    //console.error("Got interval report", results);
+                    self.currentReport = results;
+                    self.processReport();
+                    self.baselineReport = self.currentReport;
+                },
+                self.errorCallback
+            );
+        },
+        self.intervalMilis
+    );
+};
+
+/**
+ * Stats processing logic.
+ */
+StatsCollector.prototype.processReport = function ()
+{
+    if (!this.baselineReport)
+    {
+        return;
+    }
+
+    for (var idx in this.currentReport)
+    {
+        var now = this.currentReport[idx];
+        if (now.type != 'ssrc')
+        {
+            continue;
+        }
+
+        var before = this.baselineReport[idx];
+        if (!before)
+        {
+            console.warn(now.stat('ssrc') + ' not enough data');
+            continue;
+        }
+
+        var ssrc = now.stat('ssrc');
+        var jid = ssrc2jid[ssrc];
+        if (!jid)
+        {
+            console.warn("No jid for ssrc: " + ssrc);
+            continue;
+        }
+
+        var jidStats = this.jid2stats[jid];
+        if (!jidStats)
+        {
+            jidStats = new PeerStats();
+            this.jid2stats[jid] = jidStats;
+        }
+
+        // Audio level
+        var audioLevel = now.stat('audioInputLevel');
+        if (!audioLevel)
+            audioLevel = now.stat('audioOutputLevel');
+        if (audioLevel)
+        {
+            // TODO: can't find specs about what this value really is,
+            // but it seems to vary between 0 and around 32k.
+            audioLevel = audioLevel / 32767;
+            jidStats.setSsrcAudioLevel(ssrc, audioLevel);
+        }
+
+        var key = 'packetsReceived';
+        if (!now.stat(key))
+        {
+            key = 'packetsSent';
+            if (!now.stat(key))
+            {
+                console.error("No packetsReceived nor packetSent stat found");
+                this.stop();
+                return;
+            }
+        }
+        var packetsNow = now.stat(key);
+        var packetsBefore = before.stat(key);
+        var packetRate = packetsNow - packetsBefore;
+
+        var currentLoss = now.stat('packetsLost');
+        var previousLoss = before.stat('packetsLost');
+        var lossRate = currentLoss - previousLoss;
+
+        var packetsTotal = (packetRate + lossRate);
+        var lossPercent;
+
+        if (packetsTotal > 0)
+            lossPercent = lossRate / packetsTotal;
+        else
+            lossPercent = 0;
+
+        //console.info(jid + " ssrc: " + ssrc + " " + key + ": " + packetsNow);
+
+        jidStats.setSsrcLoss(ssrc, lossPercent);
+    }
+
+    var self = this;
+    // Jid stats
+    var allPeersAvg = 0;
+    var jids = Object.keys(this.jid2stats);
+    jids.forEach(
+        function (jid)
+        {
+            var peerAvg = self.jid2stats[jid].getAvgLoss(
+                function (avg)
+                {
+                    //console.info(jid + " stats: " + (avg * 100) + " %");
+                    allPeersAvg += avg;
+                }
+            );
+        }
+    );
+
+    if (jids.length > 1)
+    {
+        // Our streams loss is reported as 0 always, so -1 to length
+        allPeersAvg = allPeersAvg / (jids.length - 1);
+
+        /**
+         * Calculates number of connection quality bars from 4(hi) to 0(lo).
+         */
+        var outputAvg = self.sma3(allPeersAvg);
+        // Linear from 4(0%) to 0(25%).
+        var quality = Math.round(4 - outputAvg * 16);
+        quality = Math.max(quality, 0); // lower limit 0
+        quality = Math.min(quality, 4); // upper limit 4
+        // TODO: quality can be used to indicate connection quality using 4 step
+        // bar indicator
+        //console.info("Loss SMA3: " + outputAvg + " Q: " + quality);
+    }
+
+    self.updateCallback(self);
+};
+

toolbar.js

@@ -0,0 +1,234 @@
+var Toolbar = (function (my) {
+    var INITIAL_TOOLBAR_TIMEOUT = 20000;
+    var TOOLBAR_TIMEOUT = INITIAL_TOOLBAR_TIMEOUT;
+
+    /**
+     * Opens the lock room dialog.
+     */
+    my.openLockDialog = function() {
+        // Only the focus is able to set a shared key.
+        if (focus === null) {
+            if (sharedKey)
+                $.prompt("This conversation is currently protected by"
+                        + " a shared secret key.",
+                    {
+                        title: "Secrect key",
+                        persistent: false
+                    }
+                );
+            else
+                $.prompt("This conversation isn't currently protected by"
+                        + " a secret key. Only the owner of the conference" +
+                        + " could set a shared key.",
+                    {
+                        title: "Secrect key",
+                        persistent: false
+                    }
+                );
+        } else {
+            if (sharedKey) {
+                $.prompt("Are you sure you would like to remove your secret key?",
+                    {
+                        title: "Remove secrect key",
+                        persistent: false,
+                        buttons: { "Remove": true, "Cancel": false},
+                        defaultButton: 1,
+                        submit: function (e, v, m, f) {
+                            if (v) {
+                                setSharedKey('');
+                                lockRoom(false);
+                            }
+                        }
+                    }
+                );
+            } else {
+                $.prompt('<h2>Set a secrect key to lock your room</h2>' +
+                         '<input id="lockKey" type="text" placeholder="your shared key" autofocus>',
+                    {
+                        persistent: false,
+                        buttons: { "Save": true, "Cancel": false},
+                        defaultButton: 1,
+                        loaded: function (event) {
+                            document.getElementById('lockKey').focus();
+                        },
+                        submit: function (e, v, m, f) {
+                            if (v) {
+                                var lockKey = document.getElementById('lockKey');
+
+                                if (lockKey.value) {
+                                    setSharedKey(Util.escapeHtml(lockKey.value));
+                                    lockRoom(true);
+                                }
+                            }
+                        }
+                    }
+                );
+            }
+        }
+    };
+
+    /**
+     * Opens the invite link dialog.
+     */
+    my.openLinkDialog = function() {
+        $.prompt('<input id="inviteLinkRef" type="text" value="' +
+            encodeURI(roomUrl) + '" onclick="this.select();" readonly>',
+            {
+                title: "Share this link with everyone you want to invite",
+                persistent: false,
+                buttons: { "Cancel": false},
+                loaded: function (event) {
+                    document.getElementById('inviteLinkRef').select();
+                }
+            }
+        );
+    };
+
+    /**
+     * Opens the settings dialog.
+     */
+    my.openSettingsDialog = function() {
+        $.prompt('<h2>Configure your conference</h2>' +
+            '<input type="checkbox" id="initMuted"> Participants join muted<br/>' +
+            '<input type="checkbox" id="requireNicknames"> Require nicknames<br/><br/>' +
+            'Set a secrect key to lock your room: <input id="lockKey" type="text" placeholder="your shared key" autofocus>',
+            {
+                persistent: false,
+                buttons: { "Save": true, "Cancel": false},
+                defaultButton: 1,
+                loaded: function (event) {
+                    document.getElementById('lockKey').focus();
+                },
+                submit: function (e, v, m, f) {
+                    if (v) {
+                        if ($('#initMuted').is(":checked")) {
+                            // it is checked
+                        }
+
+                        if ($('#requireNicknames').is(":checked")) {
+                            // it is checked
+                        }
+                        /*
+                        var lockKey = document.getElementById('lockKey');
+
+                        if (lockKey.value)
+                        {
+                            setSharedKey(lockKey.value);
+                            lockRoom(true);
+                        }
+                        */
+                    }
+                }
+            }
+        );
+    };
+
+    /**
+     * Toggles the application in and out of full screen mode
+     * (a.k.a. presentation mode in Chrome).
+     */
+    my.toggleFullScreen = function() {
+        var fsElement = document.documentElement;
+
+        if (!document.mozFullScreen && !document.webkitIsFullScreen) {
+            //Enter Full Screen
+            if (fsElement.mozRequestFullScreen) {
+                fsElement.mozRequestFullScreen();
+            }
+            else {
+                fsElement.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
+            }
+        } else {
+            //Exit Full Screen
+            if (document.mozCancelFullScreen) {
+                document.mozCancelFullScreen();
+            } else {
+                document.webkitCancelFullScreen();
+            }
+        }
+    };
+
+    /**
+     * Shows the main toolbar.
+     */
+    my.showToolbar = function() {
+        if (!$('#header').is(':visible')) {
+            $('#header').show("slide", { direction: "up", duration: 300});
+            $('#subject').animate({top: "+=40"}, 300);
+
+            if (toolbarTimeout) {
+                clearTimeout(toolbarTimeout);
+                toolbarTimeout = null;
+            }
+            toolbarTimeout = setTimeout(hideToolbar, TOOLBAR_TIMEOUT);
+            TOOLBAR_TIMEOUT = 4000;
+        }
+
+        if (focus != null)
+        {
+//            TODO: Enable settings functionality. Need to uncomment the settings button in index.html.
+//            $('#settingsButton').css({visibility:"visible"});
+        }
+
+        // Show/hide desktop sharing button
+        showDesktopSharingButton();
+    };
+
+    /**
+     * Docks/undocks the toolbar.
+     *
+     * @param isDock indicates what operation to perform
+     */
+    my.dockToolbar = function(isDock) {
+        if (isDock) {
+            // First make sure the toolbar is shown.
+            if (!$('#header').is(':visible')) {
+                Toolbar.showToolbar();
+            }
+            // Then clear the time out, to dock the toolbar.
+            clearTimeout(toolbarTimeout);
+            toolbarTimeout = null;
+        }
+        else {
+            if (!$('#header').is(':visible')) {
+                Toolbar.showToolbar();
+            }
+            else {
+                toolbarTimeout = setTimeout(hideToolbar, TOOLBAR_TIMEOUT);
+            }
+        }
+    };
+
+    /**
+     * Updates the lock button state.
+     */
+    my.updateLockButton = function() {
+        buttonClick("#lockIcon", "icon-security icon-security-locked");
+    };
+
+    /**
+     * Hides the toolbar.
+     */
+    var hideToolbar = function () {
+        var isToolbarHover = false;
+        $('#header').find('*').each(function () {
+            var id = $(this).attr('id');
+            if ($("#" + id + ":hover").length > 0) {
+                isToolbarHover = true;
+            }
+        });
+
+        clearTimeout(toolbarTimeout);
+        toolbarTimeout = null;
+
+        if (!isToolbarHover) {
+            $('#header').hide("slide", { direction: "up", duration: 300});
+            $('#subject').animate({top: "-=40"}, 300);
+        }
+        else {
+            toolbarTimeout = setTimeout(hideToolbar, TOOLBAR_TIMEOUT);
+        }
+    };
+
+    return my;
+}(Toolbar || {}));

util.js

@@ -51,10 +51,35 @@ var Util = (function (my) {
      * Returns the available video width.
      */
     my.getAvailableVideoWidth = function () {
-        var chatspaceWidth = $('#chatspace').is(":visible") ? $('#chatspace').width() : 0;
+        var chatspaceWidth
+            = $('#chatspace').is(":visible") ? $('#chatspace').width() : 0;
 
         return window.innerWidth - chatspaceWidth;
     };
 
+    my.imageToGrayScale = function (canvas) {
+        var context = canvas.getContext('2d');
+        var imgData = context.getImageData(0, 0, canvas.width, canvas.height);
+        var pixels  = imgData.data;
+
+        for (var i = 0, n = pixels.length; i < n; i += 4) {
+            var grayscale
+                = pixels[i] * .3 + pixels[i+1] * .59 + pixels[i+2] * .11;
+            pixels[i  ] = grayscale;        // red
+            pixels[i+1] = grayscale;        // green
+            pixels[i+2] = grayscale;        // blue
+            // pixels[i+3]              is alpha
+        }
+        // redraw the image in black & white
+        context.putImageData(imgData, 0, 0);
+    };
+
+    my.setTooltip = function (element, tooltipText, position) {
+        element.setAttribute("data-content", tooltipText);
+        element.setAttribute("data-toggle", "popover");
+        element.setAttribute("data-placement", position);
+        element.setAttribute("data-html", true);
+    };
+
     return my;
 }(Util || {}));

videolayout.js

@@ -0,0 +1,901 @@
+var VideoLayout = (function (my) {
+    var preMuted = false;
+    var currentActiveSpeaker = null;
+
+    my.changeLocalAudio = function(stream) {
+        connection.jingle.localAudio = stream;
+
+        RTC.attachMediaStream($('#localAudio'), stream);
+        document.getElementById('localAudio').autoplay = true;
+        document.getElementById('localAudio').volume = 0;
+        if (preMuted) {
+            toggleAudio();
+            preMuted = false;
+        }
+    };
+
+    my.changeLocalVideo = function(stream, flipX) {
+        connection.jingle.localVideo = stream;
+
+        var localVideo = document.createElement('video');
+        localVideo.id = 'localVideo_' + stream.id;
+        localVideo.autoplay = true;
+        localVideo.volume = 0; // is it required if audio is separated ?
+        localVideo.oncontextmenu = function () { return false; };
+
+        var localVideoContainer = document.getElementById('localVideoWrapper');
+        localVideoContainer.appendChild(localVideo);
+
+        var localVideoSelector = $('#' + localVideo.id);
+        // Add click handler
+        localVideoSelector.click(function () {
+            VideoLayout.handleVideoThumbClicked(localVideo.src);
+        });
+        // Add hover handler
+        $('#localVideoContainer').hover(
+            function() {
+                VideoLayout.showDisplayName('localVideoContainer', true);
+            },
+            function() {
+                if (focusedVideoSrc !== localVideo.src)
+                    VideoLayout.showDisplayName('localVideoContainer', false);
+            }
+        );
+        // Add stream ended handler
+        stream.onended = function () {
+            localVideoContainer.removeChild(localVideo);
+            VideoLayout.checkChangeLargeVideo(localVideo.src);
+        };
+        // Flip video x axis if needed
+        flipXLocalVideo = flipX;
+        if (flipX) {
+            localVideoSelector.addClass("flipVideoX");
+        }
+        // Attach WebRTC stream
+        RTC.attachMediaStream(localVideoSelector, stream);
+
+        localVideoSrc = localVideo.src;
+        VideoLayout.updateLargeVideo(localVideoSrc, 0);
+    };
+
+    /**
+     * Checks if removed video is currently displayed and tries to display
+     * another one instead.
+     * @param removedVideoSrc src stream identifier of the video.
+     */
+    my.checkChangeLargeVideo = function(removedVideoSrc) {
+        if (removedVideoSrc === $('#largeVideo').attr('src')) {
+            // this is currently displayed as large
+            // pick the last visible video in the row
+            // if nobody else is left, this picks the local video
+            var pick
+                = $('#remoteVideos>span[id!="mixedstream"]:visible:last>video')
+                    .get(0);
+
+            if (!pick) {
+                console.info("Last visible video no longer exists");
+                pick = $('#remoteVideos>span[id!="mixedstream"]>video').get(0);
+                if (!pick) {
+                    // Try local video
+                    console.info("Fallback to local video...");
+                    pick = $('#remoteVideos>span>span>video').get(0);
+                }
+            }
+
+            // mute if localvideo
+            if (pick) {
+                VideoLayout.updateLargeVideo(pick.src, pick.volume);
+            } else {
+                console.warn("Failed to elect large video");
+            }
+        }
+    };
+
+
+    /**
+     * Updates the large video with the given new video source.
+     */
+    my.updateLargeVideo = function(newSrc, vol) {
+        console.log('hover in', newSrc);
+
+        if ($('#largeVideo').attr('src') != newSrc) {
+
+            var isVisible = $('#largeVideo').is(':visible');
+
+            $('#largeVideo').fadeOut(300, function () {
+                $(this).attr('src', newSrc);
+
+                // Screen stream is already rotated
+                var flipX = (newSrc === localVideoSrc) && flipXLocalVideo;
+
+                var videoTransform = document.getElementById('largeVideo')
+                                        .style.webkitTransform;
+
+                if (flipX && videoTransform !== 'scaleX(-1)') {
+                    document.getElementById('largeVideo').style.webkitTransform
+                        = "scaleX(-1)";
+                }
+                else if (!flipX && videoTransform === 'scaleX(-1)') {
+                    document.getElementById('largeVideo').style.webkitTransform
+                        = "none";
+                }
+
+                // Change the way we'll be measuring and positioning large video
+                var isDesktop = isVideoSrcDesktop(newSrc);
+                getVideoSize = isDesktop
+                                ? getDesktopVideoSize
+                                : getCameraVideoSize;
+                getVideoPosition = isDesktop
+                                    ? getDesktopVideoPosition
+                                    : getCameraVideoPosition;
+
+                if (isVisible)
+                    $(this).fadeIn(300);
+            });
+        }
+    };
+
+    my.handleVideoThumbClicked = function(videoSrc) {
+        // Restore style for previously focused video
+        var focusJid = getJidFromVideoSrc(focusedVideoSrc);
+        var oldContainer = getParticipantContainer(focusJid);
+
+        if (oldContainer) {
+            oldContainer.removeClass("videoContainerFocused");
+            VideoLayout.enableActiveSpeaker(
+                    Strophe.getResourceFromJid(focusJid), false);
+        }
+
+        // Unlock current focused.
+        if (focusedVideoSrc === videoSrc)
+        {
+            focusedVideoSrc = null;
+            // Enable the currently set active speaker.
+            if (currentActiveSpeaker) {
+                VideoLayout.enableActiveSpeaker(currentActiveSpeaker, true);
+            }
+
+            return;
+        }
+        // Remove style for current active speaker if we're going to lock
+        // another video.
+        else if (currentActiveSpeaker) {
+            VideoLayout.enableActiveSpeaker(currentActiveSpeaker, false);
+        }
+
+        // Lock new video
+        focusedVideoSrc = videoSrc;
+
+        var userJid = getJidFromVideoSrc(videoSrc);
+        if (userJid)
+        {
+            var container = getParticipantContainer(userJid);
+            container.addClass("videoContainerFocused");
+
+            var resourceJid = Strophe.getResourceFromJid(userJid);
+            VideoLayout.enableActiveSpeaker(resourceJid, true);
+        }
+
+        $(document).trigger("video.selected", [false]);
+
+        VideoLayout.updateLargeVideo(videoSrc, 1);
+
+        $('audio').each(function (idx, el) {
+            if (el.id.indexOf('mixedmslabel') !== -1) {
+                el.volume = 0;
+                el.volume = 1;
+            }
+        });
+    };
+
+    /**
+     * Positions the large video.
+     *
+     * @param videoWidth the stream video width
+     * @param videoHeight the stream video height
+     */
+    my.positionLarge = function (videoWidth, videoHeight) {
+        var videoSpaceWidth = $('#videospace').width();
+        var videoSpaceHeight = window.innerHeight;
+
+        var videoSize = getVideoSize(videoWidth,
+                                     videoHeight,
+                                     videoSpaceWidth,
+                                     videoSpaceHeight);
+
+        var largeVideoWidth = videoSize[0];
+        var largeVideoHeight = videoSize[1];
+
+        var videoPosition = getVideoPosition(largeVideoWidth,
+                                             largeVideoHeight,
+                                             videoSpaceWidth,
+                                             videoSpaceHeight);
+
+        var horizontalIndent = videoPosition[0];
+        var verticalIndent = videoPosition[1];
+
+        positionVideo($('#largeVideo'),
+                      largeVideoWidth,
+                      largeVideoHeight,
+                      horizontalIndent, verticalIndent);
+    };
+
+    /**
+     * Shows/hides the large video.
+     */
+    my.setLargeVideoVisible = function(isVisible) {
+        if (isVisible) {
+            $('#largeVideo').css({visibility: 'visible'});
+            $('.watermark').css({visibility: 'visible'});
+        }
+        else {
+            $('#largeVideo').css({visibility: 'hidden'});
+            $('.watermark').css({visibility: 'hidden'});
+        }
+    };
+
+
+    /**
+     * Checks if container for participant identified by given peerJid exists
+     * in the document and creates it eventually.
+     * 
+     * @param peerJid peer Jid to check.
+     */
+    my.ensurePeerContainerExists = function(peerJid) {
+        var peerResource = Strophe.getResourceFromJid(peerJid);
+        var videoSpanId = 'participant_' + peerResource;
+
+        if ($('#' + videoSpanId).length > 0) {
+            // If there's been a focus change, make sure we add focus related
+            // interface!!
+            if (focus && $('#remote_popupmenu_' + peerResource).length <= 0)
+                addRemoteVideoMenu( peerJid,
+                                    document.getElementById(videoSpanId));
+            return;
+        }
+
+        var container
+            = VideoLayout.addRemoteVideoContainer(peerJid, videoSpanId);
+
+        var nickfield = document.createElement('span');
+        nickfield.className = "nick";
+        nickfield.appendChild(document.createTextNode(peerResource));
+        container.appendChild(nickfield);
+        VideoLayout.resizeThumbnails();
+    };
+
+    my.addRemoteVideoContainer = function(peerJid, spanId) {
+        var container = document.createElement('span');
+        container.id = spanId;
+        container.className = 'videocontainer';
+        var remotes = document.getElementById('remoteVideos');
+
+        // If the peerJid is null then this video span couldn't be directly
+        // associated with a participant (this could happen in the case of prezi).
+        if (focus && peerJid != null)
+            addRemoteVideoMenu(peerJid, container);
+
+        remotes.appendChild(container);
+        return container;
+    };
+
+    /**
+     * Shows the display name for the given video.
+     */
+    my.setDisplayName = function(videoSpanId, displayName) {
+        var nameSpan = $('#' + videoSpanId + '>span.displayname');
+
+        // If we already have a display name for this video.
+        if (nameSpan.length > 0) {
+            var nameSpanElement = nameSpan.get(0);
+
+            if (nameSpanElement.id === 'localDisplayName' &&
+                $('#localDisplayName').text() !== displayName) {
+                $('#localDisplayName').text(displayName);
+            } else {
+                $('#' + videoSpanId + '_name').text(displayName);
+            }
+        } else {
+            var editButton = null;
+
+            if (videoSpanId === 'localVideoContainer') {
+                editButton = createEditDisplayNameButton();
+            }
+            if (displayName.length) {
+                nameSpan = document.createElement('span');
+                nameSpan.className = 'displayname';
+                nameSpan.innerText = displayName;
+                $('#' + videoSpanId)[0].appendChild(nameSpan);
+            }
+
+            if (!editButton) {
+                nameSpan.id = videoSpanId + '_name';
+            } else {
+                nameSpan.id = 'localDisplayName';
+                $('#' + videoSpanId)[0].appendChild(editButton);
+
+                var editableText = document.createElement('input');
+                editableText.className = 'displayname';
+                editableText.id = 'editDisplayName';
+
+                if (displayName.length) {
+                    editableText.value
+                        = displayName.substring(0, displayName.indexOf(' (me)'));
+                }
+
+                editableText.setAttribute('style', 'display:none;');
+                editableText.setAttribute('placeholder', 'ex. Jane Pink');
+                $('#' + videoSpanId)[0].appendChild(editableText);
+
+                $('#localVideoContainer .displayname').bind("click", function (e) {
+                    e.preventDefault();
+                    $('#localDisplayName').hide();
+                    $('#editDisplayName').show();
+                    $('#editDisplayName').focus();
+                    $('#editDisplayName').select();
+
+                    var inputDisplayNameHandler = function (name) {
+                        if (nickname !== name) {
+                            nickname = name;
+                            window.localStorage.displayname = nickname;
+                            connection.emuc.addDisplayNameToPresence(nickname);
+                            connection.emuc.sendPresence();
+
+                            Chat.setChatConversationMode(true);
+                        }
+
+                        if (!$('#localDisplayName').is(":visible")) {
+                            if (nickname) {
+                                $('#localDisplayName').text(nickname + " (me)");
+                                $('#localDisplayName').show();
+                            }
+                            else {
+                                $('#localDisplayName').text(nickname);
+                            }
+
+                            $('#editDisplayName').hide();
+                        }
+                    };
+
+                    $('#editDisplayName').one("focusout", function (e) {
+                        inputDisplayNameHandler(this.value);
+                    });
+
+                    $('#editDisplayName').on('keydown', function (e) {
+                        if (e.keyCode === 13) {
+                            e.preventDefault();
+                            inputDisplayNameHandler(this.value);
+                        }
+                    });
+                });
+            }
+        }
+    };
+
+    /**
+     * Shows/hides the display name on the remote video.
+     * @param videoSpanId the identifier of the video span element
+     * @param isShow indicates if the display name should be shown or hidden
+     */
+    my.showDisplayName = function(videoSpanId, isShow) {
+        var nameSpan = $('#' + videoSpanId + '>span.displayname').get(0);
+
+        if (isShow) {
+            if (nameSpan && nameSpan.innerHTML && nameSpan.innerHTML.length) 
+                nameSpan.setAttribute("style", "display:inline-block;");
+        }
+        else {
+            if (nameSpan)
+                nameSpan.setAttribute("style", "display:none;");
+        }
+    };
+
+    /**
+     * Shows a visual indicator for the focus of the conference.
+     * Currently if we're not the owner of the conference we obtain the focus
+     * from the connection.jingle.sessions.
+     */
+    my.showFocusIndicator = function() {
+        if (focus !== null) {
+            var indicatorSpan = $('#localVideoContainer .focusindicator');
+
+            if (indicatorSpan.children().length === 0)
+            {
+                createFocusIndicatorElement(indicatorSpan[0]);
+            }
+        }
+        else if (Object.keys(connection.jingle.sessions).length > 0) {
+            // If we're only a participant the focus will be the only session we have.
+            var session
+                = connection.jingle.sessions
+                    [Object.keys(connection.jingle.sessions)[0]];
+            var focusId
+                = 'participant_' + Strophe.getResourceFromJid(session.peerjid);
+
+            var focusContainer = document.getElementById(focusId);
+            if (!focusContainer) {
+                console.error("No focus container!");
+                return;
+            }
+            var indicatorSpan = $('#' + focusId + ' .focusindicator');
+
+            if (!indicatorSpan || indicatorSpan.length === 0) {
+                indicatorSpan = document.createElement('span');
+                indicatorSpan.className = 'focusindicator';
+                Util.setTooltip(indicatorSpan,
+                                "The owner of<br/>this conference",
+                                "top");
+                focusContainer.appendChild(indicatorSpan);
+
+                createFocusIndicatorElement(indicatorSpan);
+            }
+        }
+    };
+
+    /**
+     * Shows video muted indicator over small videos.
+     */
+    my.showVideoIndicator = function(videoSpanId, isMuted) {
+        var videoMutedSpan = $('#' + videoSpanId + '>span.videoMuted');
+
+        if (isMuted === 'false') {
+            if (videoMutedSpan.length > 0) {
+                videoMutedSpan.remove();
+            }
+        }
+        else {
+            var audioMutedSpan = $('#' + videoSpanId + '>span.audioMuted');
+
+            videoMutedSpan = document.createElement('span');
+            videoMutedSpan.className = 'videoMuted';
+            if (audioMutedSpan) {
+                videoMutedSpan.right = '30px';
+            }
+            $('#' + videoSpanId)[0].appendChild(videoMutedSpan);
+
+            var mutedIndicator = document.createElement('i');
+            mutedIndicator.className = 'icon-camera-disabled';
+            Util.setTooltip(mutedIndicator,
+                    "Participant has<br/>stopped the camera.",
+                    "top");
+            videoMutedSpan.appendChild(mutedIndicator);
+        }
+    };
+
+    /**
+     * Shows audio muted indicator over small videos.
+     */
+    my.showAudioIndicator = function(videoSpanId, isMuted) {
+        var audioMutedSpan = $('#' + videoSpanId + '>span.audioMuted');
+
+        if (isMuted === 'false') {
+            if (audioMutedSpan.length > 0) {
+                audioMutedSpan.remove();
+            }
+        }
+        else {
+            var videoMutedSpan = $('#' + videoSpanId + '>span.videoMuted');
+
+            audioMutedSpan = document.createElement('span');
+            audioMutedSpan.className = 'audioMuted';
+            Util.setTooltip(audioMutedSpan,
+                    "Participant is muted",
+                    "top");
+
+            if (videoMutedSpan) {
+                audioMutedSpan.right = '30px';
+            }
+            $('#' + videoSpanId)[0].appendChild(audioMutedSpan);
+
+            var mutedIndicator = document.createElement('i');
+            mutedIndicator.className = 'icon-mic-disabled';
+            audioMutedSpan.appendChild(mutedIndicator);
+        }
+    };
+
+    /**
+     * Resizes the large video container.
+     */
+    my.resizeLargeVideoContainer = function () {
+        Chat.resizeChat();
+        var availableHeight = window.innerHeight;
+        var availableWidth = Util.getAvailableVideoWidth();
+
+        if (availableWidth < 0 || availableHeight < 0) return;
+
+        $('#videospace').width(availableWidth);
+        $('#videospace').height(availableHeight);
+        $('#largeVideoContainer').width(availableWidth);
+        $('#largeVideoContainer').height(availableHeight);
+
+        VideoLayout.resizeThumbnails();
+    };
+
+    /**
+     * Resizes thumbnails.
+     */
+    my.resizeThumbnails = function() {
+        var thumbnailSize = calculateThumbnailSize();
+        var width = thumbnailSize[0];
+        var height = thumbnailSize[1];
+
+        // size videos so that while keeping AR and max height, we have a
+        // nice fit
+        $('#remoteVideos').height(height);
+        $('#remoteVideos>span').width(width);
+        $('#remoteVideos>span').height(height);
+    };
+
+    /**
+     * Enables the active speaker UI.
+     *
+     * @param resourceJid the jid indicating the video element to
+     * activate/deactivate
+     * @param isEnable indicates if the active speaker should be enabled or
+     * disabled
+     */
+    my.enableActiveSpeaker = function(resourceJid, isEnable) {
+        var displayName = resourceJid;
+        var nameSpan = $('#participant_' + resourceJid + '>span.displayname');
+        if (nameSpan.length > 0)
+            displayName = nameSpan.text();
+
+        console.log("Enable active speaker", displayName, isEnable);
+
+        var videoSpanId = null;
+        if (resourceJid
+                === Strophe.getResourceFromJid(connection.emuc.myroomjid))
+            videoSpanId = 'localVideoWrapper';
+        else
+            videoSpanId = 'participant_' + resourceJid;
+
+        videoSpan = document.getElementById(videoSpanId);
+
+        if (!videoSpan) {
+            console.error("No video element for jid", resourceJid);
+            return;
+        }
+
+        var video = $('#' + videoSpanId + '>video');
+
+        if (video && video.length > 0) {
+            var videoElement = video.get(0);
+            if (isEnable) {
+                if (!videoElement.classList.contains("activespeaker"))
+                    videoElement.classList.add("activespeaker");
+
+                VideoLayout.showDisplayName(videoSpanId, true);
+            }
+            else {
+                VideoLayout.showDisplayName(videoSpanId, false);
+
+                if (videoElement.classList.contains("activespeaker"))
+                    videoElement.classList.remove("activespeaker");
+            }
+        }
+    };
+
+    /**
+     * Gets the selector of video thumbnail container for the user identified by
+     * given <tt>userJid</tt>
+     * @param userJid user's Jid for whom we want to get the video container.
+     */
+    function getParticipantContainer(userJid)
+    {
+        if (!userJid)
+            return null;
+
+        if (userJid === connection.emuc.myroomjid)
+            return $("#localVideoContainer");
+        else
+            return $("#participant_" + Strophe.getResourceFromJid(userJid));
+    }
+
+    /**
+     * Sets the size and position of the given video element.
+     *
+     * @param video the video element to position
+     * @param width the desired video width
+     * @param height the desired video height
+     * @param horizontalIndent the left and right indent
+     * @param verticalIndent the top and bottom indent
+     */
+    function positionVideo(video,
+                           width,
+                           height,
+                           horizontalIndent,
+                           verticalIndent) {
+        video.width(width);
+        video.height(height);
+        video.css({  top: verticalIndent + 'px',
+                     bottom: verticalIndent + 'px',
+                     left: horizontalIndent + 'px',
+                     right: horizontalIndent + 'px'});
+    }
+
+    /**
+     * Calculates the thumbnail size.
+     */
+    var calculateThumbnailSize = function () {
+        // Calculate the available height, which is the inner window height minus
+       // 39px for the header minus 2px for the delimiter lines on the top and
+       // bottom of the large video, minus the 36px space inside the remoteVideos
+       // container used for highlighting shadow.
+       var availableHeight = 100;
+
+       var numvids = $('#remoteVideos>span:visible').length;
+
+       // Remove the 1px borders arround videos and the chat width.
+       var availableWinWidth = $('#remoteVideos').width() - 2 * numvids - 50;
+       var availableWidth = availableWinWidth / numvids;
+       var aspectRatio = 16.0 / 9.0;
+       var maxHeight = Math.min(160, availableHeight);
+       availableHeight = Math.min(maxHeight, availableWidth / aspectRatio);
+       if (availableHeight < availableWidth / aspectRatio) {
+           availableWidth = Math.floor(availableHeight * aspectRatio);
+       }
+
+       return [availableWidth, availableHeight];
+   };
+
+   /**
+    * Returns an array of the video dimensions, so that it keeps it's aspect
+    * ratio and fits available area with it's larger dimension. This method
+    * ensures that whole video will be visible and can leave empty areas.
+    *
+    * @return an array with 2 elements, the video width and the video height
+    */
+   function getDesktopVideoSize(videoWidth,
+                                videoHeight,
+                                videoSpaceWidth,
+                                videoSpaceHeight) {
+       if (!videoWidth)
+           videoWidth = currentVideoWidth;
+       if (!videoHeight)
+           videoHeight = currentVideoHeight;
+
+       var aspectRatio = videoWidth / videoHeight;
+
+       var availableWidth = Math.max(videoWidth, videoSpaceWidth);
+       var availableHeight = Math.max(videoHeight, videoSpaceHeight);
+
+       videoSpaceHeight -= $('#remoteVideos').outerHeight();
+
+       if (availableWidth / aspectRatio >= videoSpaceHeight)
+       {
+           availableHeight = videoSpaceHeight;
+           availableWidth = availableHeight * aspectRatio;
+       }
+
+       if (availableHeight * aspectRatio >= videoSpaceWidth)
+       {
+           availableWidth = videoSpaceWidth;
+           availableHeight = availableWidth / aspectRatio;
+       }
+
+       return [availableWidth, availableHeight];
+   }
+
+   /**
+    * Creates the edit display name button.
+    * 
+    * @returns the edit button
+    */
+    function createEditDisplayNameButton() {
+        var editButton = document.createElement('a');
+        editButton.className = 'displayname';
+        Util.setTooltip(editButton,
+                        'Click to edit your<br/>display name',
+                        "top");
+        editButton.innerHTML = '<i class="fa fa-pencil"></i>';
+
+        return editButton;
+    }
+
+    /**
+     * Creates the element indicating the focus of the conference.
+     *
+     * @param parentElement the parent element where the focus indicator will
+     * be added
+     */
+    function createFocusIndicatorElement(parentElement) {
+        var focusIndicator = document.createElement('i');
+        focusIndicator.className = 'fa fa-star';
+        parentElement.appendChild(focusIndicator);
+    }
+
+    /**
+     * Updates the remote video menu.
+     *
+     * @param jid the jid indicating the video for which we're adding a menu.
+     * @param isMuted indicates the current mute state
+     */
+    my.updateRemoteVideoMenu = function(jid, isMuted) {
+        var muteMenuItem
+            = $('#remote_popupmenu_'
+                    + Strophe.getResourceFromJid(jid)
+                    + '>li>a.mutelink');
+
+        var mutedIndicator = "<i class='icon-mic-disabled'></i>";
+
+        if (muteMenuItem.length) {
+            var muteLink = muteMenuItem.get(0);
+
+            if (isMuted === 'true') {
+                muteLink.innerHTML = mutedIndicator + ' Muted';
+                muteLink.className = 'mutelink disabled';
+            }
+            else {
+                muteLink.innerHTML = mutedIndicator + ' Mute';
+                muteLink.className = 'mutelink';
+            }
+        }
+    };
+
+    /**
+     * Returns the current active speaker.
+     */
+    my.getActiveSpeakerContainerId = function () {
+        return 'participant_' + currentActiveSpeaker;
+    };
+
+    /**
+     * Adds the remote video menu element for the given <tt>jid</tt> in the
+     * given <tt>parentElement</tt>.
+     *
+     * @param jid the jid indicating the video for which we're adding a menu.
+     * @param parentElement the parent element where this menu will be added
+     */
+    function addRemoteVideoMenu(jid, parentElement) {
+        var spanElement = document.createElement('span');
+        spanElement.className = 'remotevideomenu';
+
+        parentElement.appendChild(spanElement);
+
+        var menuElement = document.createElement('i');
+        menuElement.className = 'fa fa-angle-down';
+        menuElement.title = 'Remote user controls';
+        spanElement.appendChild(menuElement);
+
+//        <ul class="popupmenu">
+//        <li><a href="#">Mute</a></li>
+//        <li><a href="#">Eject</a></li>
+//        </ul>
+        var popupmenuElement = document.createElement('ul');
+        popupmenuElement.className = 'popupmenu';
+        popupmenuElement.id
+            = 'remote_popupmenu_' + Strophe.getResourceFromJid(jid);
+        spanElement.appendChild(popupmenuElement);
+
+        var muteMenuItem = document.createElement('li');
+        var muteLinkItem = document.createElement('a');
+
+        var mutedIndicator = "<i class='icon-mic-disabled'></i>";
+
+        if (!mutedAudios[jid]) {
+            muteLinkItem.innerHTML = mutedIndicator + 'Mute';
+            muteLinkItem.className = 'mutelink';
+        }
+        else {
+            muteLinkItem.innerHTML = mutedIndicator + ' Muted';
+            muteLinkItem.className = 'mutelink disabled';
+        }
+
+        muteLinkItem.onclick = function(){
+            if ($(this).attr('disabled') != undefined) {
+                event.preventDefault();
+            }
+            var isMute = !mutedAudios[jid];
+            connection.moderate.setMute(jid, isMute);
+            popupmenuElement.setAttribute('style', 'display:none;');
+
+            if (isMute) {
+                this.innerHTML = mutedIndicator + ' Muted';
+                this.className = 'mutelink disabled';
+            }
+            else {
+                this.innerHTML = mutedIndicator + ' Mute';
+                this.className = 'mutelink';
+            }
+        };
+
+        muteMenuItem.appendChild(muteLinkItem);
+        popupmenuElement.appendChild(muteMenuItem);
+
+        var ejectIndicator = "<i class='fa fa-eject'></i>";
+
+        var ejectMenuItem = document.createElement('li');
+        var ejectLinkItem = document.createElement('a');
+        ejectLinkItem.innerHTML = ejectIndicator + ' Kick out';
+        ejectLinkItem.onclick = function(){
+            connection.moderate.eject(jid);
+            popupmenuElement.setAttribute('style', 'display:none;');
+        };
+
+        ejectMenuItem.appendChild(ejectLinkItem);
+        popupmenuElement.appendChild(ejectMenuItem);
+    }
+
+    /**
+     * On audio muted event.
+     */
+    $(document).bind('audiomuted.muc', function (event, jid, isMuted) {
+        var videoSpanId = null;
+        if (jid === connection.emuc.myroomjid) {
+            videoSpanId = 'localVideoContainer';
+        } else {
+            VideoLayout.ensurePeerContainerExists(jid);
+            videoSpanId = 'participant_' + Strophe.getResourceFromJid(jid);
+        }
+
+        if (focus) {
+            mutedAudios[jid] = isMuted;
+            VideoLayout.updateRemoteVideoMenu(jid, isMuted);
+        }
+
+        if (videoSpanId)
+            VideoLayout.showAudioIndicator(videoSpanId, isMuted);
+    });
+
+    /**
+     * On video muted event.
+     */
+    $(document).bind('videomuted.muc', function (event, jid, isMuted) {
+        var videoSpanId = null;
+        if (jid === connection.emuc.myroomjid) {
+            videoSpanId = 'localVideoContainer';
+        } else {
+            VideoLayout.ensurePeerContainerExists(jid);
+            videoSpanId = 'participant_' + Strophe.getResourceFromJid(jid);
+        }
+
+        if (videoSpanId)
+            VideoLayout.showVideoIndicator(videoSpanId, isMuted);
+    });
+
+    /**
+     * On active speaker changed event.
+     */
+    $(document).bind('activespeakerchanged', function (event, resourceJid) {
+        // We ignore local user events.
+        if (resourceJid
+                === Strophe.getResourceFromJid(connection.emuc.myroomjid))
+            return;
+
+        // Disable style for previous active speaker.
+        if (currentActiveSpeaker
+                && currentActiveSpeaker !== resourceJid
+                && !focusedVideoSrc) {
+            var oldContainer  = document.getElementById(
+                    'participant_' + currentActiveSpeaker);
+
+            if (oldContainer) {
+                VideoLayout.enableActiveSpeaker(currentActiveSpeaker, false);
+            }
+        }
+
+        // Obtain container for new active speaker.
+        var container  = document.getElementById(
+                'participant_' + resourceJid);
+
+        // Update the current active speaker.
+        if (resourceJid !== currentActiveSpeaker)
+            currentActiveSpeaker = resourceJid;
+        else
+            return;
+
+        // Local video will not have container found, but that's ok
+        // since we don't want to switch to local video.
+        if (container && !focusedVideoSrc)
+        {
+            var video = container.getElementsByTagName("video");
+            if (video.length)
+            {
+                VideoLayout.updateLargeVideo(video[0].src);
+                VideoLayout.enableActiveSpeaker(resourceJid, true);
+            }
+        }
+    });
+
+    return my;
+}(VideoLayout || {}));