FIX: hide custom top/footer in admin section

app/assets/javascripts/admin/routes/admin.js.es6

@@ -0,0 +1,16 @@
+export default Discourse.Route.extend({
+  titleToken() {
+    return I18n.t('admin_title');
+  },
+
+  activate() {
+    this.controllerFor("application").setProperties({
+      showTop: false,
+      showFooter: false,
+    });
+  },
+
+  deactivate() {
+    this.controllerFor("application").set("showTop", true);
+  }
+});

app/assets/javascripts/admin/routes/admin_route.js

@@ -1,5 +0,0 @@
-Discourse.AdminRoute = Discourse.Route.extend({
-  titleToken: function() {
-    return I18n.t('admin_title');
-  }
-});

app/assets/javascripts/discourse/controllers/application.js.es6

@@ -1,4 +1,5 @@
 export default Ember.Controller.extend({
+  showTop: true,
   showFooter: false,
   styleCategory: null,
 

app/assets/javascripts/discourse/templates/application.hbs

@@ -2,7 +2,9 @@
 
 <div id="main-outlet" class="wrap">
   <div class="container">
-    {{custom-html "top"}}
+    {{#if showTop}}
+      {{custom-html "top"}}
+    {{/if}}
     {{global-notice}}
   </div>
   {{outlet}}