Add destroy method to StorageManager

src/editor/model/Editor.js

@@ -767,7 +767,8 @@ export default Backbone.Model.extend({
       I18n,
       Modal,
       Parser,
-      SelectorManager
+      SelectorManager,
+      StorageManager
     } = this.attributes;
     this.stopDefault();
     DomComponents.destroy();
@@ -787,6 +788,7 @@ export default Backbone.Model.extend({
     Modal.destroy();
     Parser.destroy();
     SelectorManager.destroy();
+    StorageManager.destroy();
     this.view.remove();
     this.stopListening();
     this.clear({ silent: true });

src/storage_manager/index.js

@@ -36,14 +36,15 @@ import defaults from './config/config';
 import LocalStorage from './model/LocalStorage';
 import RemoteStorage from './model/RemoteStorage';
 
+const eventStart = 'storage:start';
+const eventEnd = 'storage:end';
+const eventError = 'storage:error';
+
 export default () => {
   var c = {};
   let em;
   var storages = {};
   var defaultStorages = {};
-  const eventStart = 'storage:start';
-  const eventEnd = 'storage:end';
-  const eventError = 'storage:error';
 
   return {
     /**
@@ -331,6 +332,10 @@ export default () => {
     canAutoload() {
       const storage = this.getCurrentStorage();
       return storage && this.getConfig().autoload;
+    },
+
+    destroy() {
+      [c, em, storages, defaultStorages].forEach(i => (i = {}));
     }
   };
 };