Add breadcrumb navigation

app/controllers/index.js

@@ -1,23 +1,27 @@
 import Controller from '@ember/controller';
+import { inject as controller } from '@ember/controller';
 import { inject as service } from '@ember/service';
 import { alias } from '@ember/object/computed';
 import { isPresent } from '@ember/utils';
 
 export default Controller.extend({
 
+  application: controller(),
   storage: service(),
 
   connecting: alias('storage.connecting'),
   connected: alias('storage.connected'),
   rootListing: alias('storage.rootListing'),
+  currentDirPath: alias('application.currentDirPath'),
 
   queryParams: ['path'],
 
   currentListing: function() {
-    if (isPresent(this.get('model'))) {
-      return this.get('model').sortBy('name');
+    if (isPresent(this.get('model.currentListing'))) {
+      return this.get('model.currentListing').sortBy('name');
+    } else {
+      return this.get('rootListing');
     }
-    return this.get('rootListing');
   }.property('rootListing.[]', 'model.[]')
 
 });