Implement channel registration

www/assets/js/callbacks.js

@@ -15,6 +15,19 @@ function initCallbacks() {
             .innerHTML = "<h3>Disconnected from server</h3>";
     });
 
+    socket.on('channelNotRegistered', function() {
+        showChannelRegistration();
+    });
+
+    socket.on('registerChannel', function(data) {
+        if(data.success) {
+            $('#chregnotice').remove();
+        }
+        else {
+            alert(data.error);
+        }
+    });
+
     socket.on('rank', function(data) {
         if(data.rank >= Rank.Moderator) {
             $('#playlist_controls').css("display", "block");

www/assets/js/functions.js

@@ -493,3 +493,17 @@ function updatePoll(data) {
         i++;
     });
 }
+
+function showChannelRegistration() {
+    var div = $('<div/>').addClass('alert alert-info').attr('id', 'chregnotice')
+        .insertAfter($('.row')[0]);
+    $('<button/>').addClass('close pull-right').text('×')
+        .appendTo(div)
+        .click(function() { div.remove(); });
+    $('<h3/>').text("This channel isn't registered").appendTo(div);
+    $('<button/>').addClass('btn btn-primary').text('Register it')
+        .appendTo(div)
+        .click(function() {
+            socket.emit('registerChannel');
+        });
+}