Move dir listing fetch to service

app/routes/index.js

@@ -1,8 +1,6 @@
 import Route from '@ember/routing/route';
-import EmberObject from '@ember/object';
 import { inject as service } from '@ember/service';
 import { isEmpty } from '@ember/utils';
-import simpleContentType from 'inspektor/utils/simple-content-type';
 
 export default Route.extend({
 
@@ -16,27 +14,12 @@ export default Route.extend({
 
   model(params) {
     let path = params.path;
-    let items = [];
 
     if (isEmpty(params.path)) { return null; }
 
     if (path.substr(-1) !== '/') { path += '/'; }
 
-    return this.get('storage.client').getListing(path).then(listing => {
-      Object.keys(listing).forEach(name => {
-        let item = listing[name];
-        let type = item['Content-Type'] || 'folder';
-        if (type !== 'folder') { type = simpleContentType(type); }
-
-        items.push(EmberObject.create({
-          name: name,
-          type: type,
-          size: item['Content-Length'] || null
-        }));
-      });
-
-      return items;
-    });
+    return this.get('storage').fetchListing(path);
   },
 
   setupController(controller, model) {

app/services/storage.js

@@ -1,6 +1,8 @@
+import EmberObject from '@ember/object';
 import Service from '@ember/service';
 import RemoteStorage from 'npm:remotestoragejs';
 import Widget from 'npm:remotestorage-widget';
+import simpleContentType from 'inspektor/utils/simple-content-type';
 
 export default Service.extend({
 
@@ -81,6 +83,26 @@ export default Service.extend({
 
       this.set('categories', categories);
     });
+  },
+
+  fetchListing(path) {
+    let items = [];
+
+    return this.get('client').getListing(path).then(listing => {
+      Object.keys(listing).forEach(name => {
+        let item = listing[name];
+        let type = item['Content-Type'] || 'folder';
+        if (type !== 'folder') { type = simpleContentType(type); }
+
+        items.push(EmberObject.create({
+          name: name,
+          type: type,
+          size: item['Content-Length'] || null
+        }));
+      });
+
+      return items;
+    });
   }
 
 });