Implements functionality that forces the user to enter display name.

config.js

     enableWelcomePage: true,
     enableSimulcast: false, // blocks FF support
     logStats: false, // Enable logging of PeerConnection stats via the focus
+//    requireDisplayName: true,//Forces the participants that doesn't have display name to enter it when they enter the room.
 //    startAudioMuted: 10, //every participant after the Nth will start audio muted
 //    startVideoMuted: 10, //every participant after the Nth will start video muted
 //    defaultLanguage: "en",

index.html

     <script src="libs/jquery-2.1.1.min.js"></script>
     <script src="https://cdn.socket.io/socket.io-1.2.0.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/jsSHA/1.5.0/sha.js"></script>
-    <script src="config.js?v=10"></script><!-- adapt to your needs, i.e. set hosts and bosh path -->
+    <script src="config.js?v=11"></script><!-- adapt to your needs, i.e. set hosts and bosh path -->
     <script src="libs/strophe/strophe.min.js?v=1"></script>
     <script src="libs/strophe/strophe.disco.min.js?v=1"></script>
     <script src="libs/strophe/strophe.caps.jsonly.min.js?v=1"></script>
     <script src="libs/popover.js?v=1"></script><!-- bootstrap tooltip lib -->
     <script src="libs/toastr.js?v=1"></script><!-- notifications lib -->
     <script src="interface_config.js?v=5"></script>
-    <script src="libs/app.bundle.js?v=94"></script>
+    <script src="libs/app.bundle.js?v=95"></script>
     <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
     <link rel="stylesheet" href="css/font.css?v=7"/>
     <link rel="stylesheet" href="css/toastr.css?v=1">

lang/main.json

         "reservationErrorMsg": "Error code: __code__, message: __msg__",
         "password": "password",
         "userPassword": "user password",
-        "token": "token"
+        "token": "token",
+        "displayNameRequired": "Please enter your display name:"
     },
     "email":
     {

libs/app.bundle.js

 var roomName = null;
 
 
+function promptDisplayName() {
+    var message = '<h2 data-i18n="dialog.displayNameRequired">';
+    message += APP.translation.translateString(
+        "dialog.displayNameRequired");
+    message += '</h2>' +
+        '<input name="displayName" type="text" data-i18n=' +
+        '"[placeholder]defaultNickname" placeholder="' +
+        APP.translation.translateString(
+            "defaultNickname", {name: "Jane Pink"}) +
+        '" autofocus>';
+
+    var buttonTxt
+        = APP.translation.generateTranslatonHTML("dialog.Ok");
+    var buttons = [];
+    buttons.push({title: buttonTxt, value: "ok"});
+
+    messageHandler.openDialog(null, message,
+        true,
+        buttons,
+        function (e, v, m, f) {
+            if (v == "ok") {
+                var displayName = f.displayName;
+                if (displayName) {
+                    VideoLayout.inputDisplayNameHandler(displayName);
+                    return true;
+                }
+            }
+            e.preventDefault();
+        },
+        function () {
+            var form  = $.prompt.getPrompt();
+            var input = form.find("input[name='displayName']");
+            var button = form.find("button");
+            button.attr("disabled", "disabled");
+            input.keyup(function () {
+                if(!input.val())
+                    button.attr("disabled", "disabled");
+                else
+                    button.removeAttr("disabled");
+            });
+        }
+    );
+}
+
+
 function notifyForInitialMute()
 {
     messageHandler.notify(null, "notify.mutedTitle", "connected",
 
     document.getElementById('largeVideo').volume = 0;
 
-    if (!$('#settings').is(':visible')) {
-        console.log('init');
-        init();
-    } else {
-        loginInfo.onsubmit = function (e) {
-            if (e.preventDefault) e.preventDefault();
-            $('#settings').hide();
-            init();
-        };
+    if(config.requireDisplayName) {
+        var currentSettings = Settings.getSettings();
+        if (!currentSettings.displayName) {
+            promptDisplayName();
+        }
     }
 
+    init();
+
     toastr.options = {
         "closeButton": true,
         "debug": false,

modules/UI/UI.js

 var roomName = null;
 
 
+function promptDisplayName() {
+    var message = '<h2 data-i18n="dialog.displayNameRequired">';
+    message += APP.translation.translateString(
+        "dialog.displayNameRequired");
+    message += '</h2>' +
+        '<input name="displayName" type="text" data-i18n=' +
+        '"[placeholder]defaultNickname" placeholder="' +
+        APP.translation.translateString(
+            "defaultNickname", {name: "Jane Pink"}) +
+        '" autofocus>';
+
+    var buttonTxt
+        = APP.translation.generateTranslatonHTML("dialog.Ok");
+    var buttons = [];
+    buttons.push({title: buttonTxt, value: "ok"});
+
+    messageHandler.openDialog(null, message,
+        true,
+        buttons,
+        function (e, v, m, f) {
+            if (v == "ok") {
+                var displayName = f.displayName;
+                if (displayName) {
+                    VideoLayout.inputDisplayNameHandler(displayName);
+                    return true;
+                }
+            }
+            e.preventDefault();
+        },
+        function () {
+            var form  = $.prompt.getPrompt();
+            var input = form.find("input[name='displayName']");
+            var button = form.find("button");
+            button.attr("disabled", "disabled");
+            input.keyup(function () {
+                if(!input.val())
+                    button.attr("disabled", "disabled");
+                else
+                    button.removeAttr("disabled");
+            });
+        }
+    );
+}
+
+
 function notifyForInitialMute()
 {
     messageHandler.notify(null, "notify.mutedTitle", "connected",
 
     document.getElementById('largeVideo').volume = 0;
 
-    if (!$('#settings').is(':visible')) {
-        console.log('init');
-        init();
-    } else {
-        loginInfo.onsubmit = function (e) {
-            if (e.preventDefault) e.preventDefault();
-            $('#settings').hide();
-            init();
-        };
+    if(config.requireDisplayName) {
+        var currentSettings = Settings.getSettings();
+        if (!currentSettings.displayName) {
+            promptDisplayName();
+        }
     }
 
+    init();
+
     toastr.options = {
         "closeButton": true,
         "debug": false,