wait for moderator with action cable

app/assets/javascripts/channels/moderator_joins.js

@@ -0,0 +1,27 @@
+(function() {
+
+  var initRooms = function() {
+    App.messages = App.cable.subscriptions.create({
+      channel: 'ModeratorJoinsChannel',
+      username: window.location.pathname.split('/').pop()
+    },
+    {
+      received: function(data) {
+        if (!Meeting.getInstance().getModJoined()) {
+          Meeting.getInstance().setModJoined(true);
+          if (Meeting.getInstance().getWaitingForMod()) {
+            loopJoin();
+          }
+        }
+      }
+    });
+  };
+
+  $(document).on("turbolinks:load", function() {
+    if ($("body[data-controller=landing]").get(0)) {
+      if ($("body[data-action=rooms]").get(0)) {
+        initRooms();
+      }
+    }
+  });
+}).call(this);