Unbind all key shortcuts on destroy. Fixes #1501

src/canvas/index.js

@@ -138,7 +138,8 @@ module.exports = () => {
      * @return {HTMLBodyElement}
      */
     getBody() {
-      return this.getDocument().body;
+      const doc = this.getDocument();
+      return doc && doc.body;
     },
 
     /**
@@ -146,7 +147,8 @@ module.exports = () => {
      * @return {HTMLElement}
      */
     getWrapperEl() {
-      return this.getBody().querySelector('#wrapper');
+      const body = this.getBody();
+      return body && body.querySelector('#wrapper');
     },
 
     /**

src/dom_components/view/ComponentImageView.js

@@ -10,7 +10,6 @@ module.exports = ComponentView.extend({
   },
 
   initialize(o) {
-    console.log('init image', this.el);
     const model = this.model;
     ComponentView.prototype.initialize.apply(this, arguments);
     this.listenTo(model, 'change:src', this.updateSrc);

src/editor/model/Editor.js

@@ -616,13 +616,15 @@ module.exports = Backbone.Model.extend({
       CssComposer,
       UndoManager,
       Panels,
-      Canvas
+      Canvas,
+      Keymaps
     } = this.attributes;
     DomComponents.clear();
     CssComposer.clear();
     UndoManager.clear().removeAll();
     Panels.getPanels().reset();
     Canvas.getCanvasView().remove();
+    Keymaps.removeAll();
     this.view.remove();
     this.stopListening();
     $(this.config.el)

src/keymaps/index.js

@@ -26,6 +26,7 @@
  * * [get](#get)
  * * [getAll](#getAll)
  * * [remove](#remove)
+ * * [removeAll](#removeall)
  *
  * @module Keymaps
  */
@@ -194,6 +195,15 @@ module.exports = () => {
         em && em.trigger('keymap:remove', keymap);
         return keymap;
       }
+    },
+
+    /**
+     * Remove all binded keymaps
+     * @return {this}
+     */
+    removeAll() {
+      Object.keys(keymaps).forEach(keymap => this.remove(keymap));
+      return this;
     }
   };
 };