filter down the top level navs

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

@@ -7,32 +7,34 @@
   @module Discourse
 **/
 Discourse.ListController = Discourse.Controller.extend({
-  categoryBinding: 'topicList.category',
+  categoryBinding: "topicList.category",
   canCreateCategory: false,
   canCreateTopic: false,
-  needs: ['composer', 'modal', 'listTopics'],
+  needs: ["composer", "modal", "listTopics"],
 
   availableNavItems: function() {
     var loggedOn = !!Discourse.User.current();
+    var category = this.get("category");
 
     return Discourse.SiteSettings.top_menu.split("|").map(function(i) {
       return Discourse.NavItem.fromText(i, {
-        loggedOn: loggedOn
+        loggedOn: loggedOn,
+        category: category
       });
     }).filter(function(i) {
-      return i !== null;
+      return i !== null && !(category && i.get("name") === "categories");
     });
-  }.property(),
+  }.property("category"),
 
   createTopicText: function() {
-    if (this.get('category.name')) {
+    if (this.get("category.name")) {
       return I18n.t("topic.create_in", {
-        categoryName: this.get('category.name')
+        categoryName: this.get("category.name")
       });
     } else {
       return I18n.t("topic.create");
     }
-  }.property('category.name'),
+  }.property("category.name"),
 
   /**
     Refresh our current topic list

app/assets/javascripts/discourse/models/nav_item.js

@@ -42,7 +42,7 @@ Discourse.NavItem = Discourse.Model.extend({
   count: function() {
     var state = this.get('topicTrackingState');
     if (state) {
-      return state.lookupCount(this.get('name'));
+      return state.lookupCount(this.get('name'), this.get('category'));
     }
   }.property('topicTrackingState.messageCount'),
 
@@ -71,7 +71,8 @@ Discourse.NavItem.reopenClass({
     opts = {
       name: name,
       hasIcon: name === "unread" || name === "favorited",
-      filters: split.splice(1)
+      filters: split.splice(1),
+      category: opts.category
     };
 
     return Discourse.NavItem.create(opts);

app/assets/javascripts/discourse/models/topic_tracking_state.js

@@ -159,15 +159,16 @@ Discourse.TopicTrackingState = Discourse.Model.extend({
     return count;
   },
 
-  lookupCount: function(name){
+  lookupCount: function(name, category){
+    var categoryName = Em.get(category, "name");
     if(name==="new") {
-      return this.countNew();
+      return this.countNew(categoryName);
     } else if(name==="unread") {
-      return this.countUnread();
+      return this.countUnread(categoryName);
     } else {
-      var category = name.split("/")[1];
-      if(category) {
-        return this.countCategory(category);
+      categoryName = name.split("/")[1];
+      if(categoryName) {
+        return this.countCategory(categoryName);
       }
     }
   },