refactors header notifications (renders them via separate controller / template)

app/assets/javascripts/discourse/controllers/header_controller.js

@@ -9,6 +9,7 @@
 Discourse.HeaderController = Discourse.Controller.extend({
   topic: null,
   showExtraInfo: null,
+  notifications: null,
 
   categories: function() {
     return Discourse.Category.list();
@@ -39,6 +40,16 @@ Discourse.HeaderController = Discourse.Controller.extend({
 
     toggleMobileView: function() {
       Discourse.Mobile.toggleMobileView();
+    },
+
+    showNotifications: function(headerView) {
+      var self = this;
+
+      Discourse.ajax("/notifications").then(function(result) {
+        self.set("notifications", result);
+        self.set("currentUser.unread_notifications", 0);
+        headerView.showDropdownBySelector("#user-notifications");
+      });
     }
   }
 

app/assets/javascripts/discourse/controllers/notification_controller.js

@@ -0,0 +1,17 @@
+Discourse.NotificationController = Discourse.ObjectController.extend({
+  scope: function() {
+    return "notifications." + Discourse.Site.currentProp("notificationLookup")[this.get("notification_type")];
+  }.property(),
+
+  username: function() {
+    return this.get("data.display_username");
+  }.property(),
+
+  link: function() {
+    if (this.blank("data.topic_title")) {
+      return "";
+    }
+    var url = Discourse.Utilities.postUrl(this.get("slug"), this.get("topic_id"), this.get("post_number"));
+    return '<a href="' + url + '">' + this.get("data.topic_title") + '</a>';
+  }.property()
+});

app/assets/javascripts/discourse/controllers/notifications_controller.js

@@ -0,0 +1,3 @@
+Discourse.NotificationsController = Ember.ArrayController.extend(Discourse.HasCurrentUser, {
+  itemController: "notification"
+});