Destroy RTE module when `editor.destroy` is called (#2471)

Destroy RTE module when `editor.destroy` is called

src/editor/model/Editor.js

@@ -656,7 +656,8 @@ export default Backbone.Model.extend({
       UndoManager,
       Panels,
       Canvas,
-      Keymaps
+      Keymaps,
+      RichTextEditor
     } = this.attributes;
     DomComponents.clear();
     CssComposer.clear();
@@ -664,6 +665,7 @@ export default Backbone.Model.extend({
     Panels.getPanels().reset();
     Canvas.getCanvasView().remove();
     Keymaps.removeAll();
+    RichTextEditor.destroy();
     this.view.remove();
     this.stopListening();
     $(this.config.el)

src/rich_text_editor/index.js

@@ -83,6 +83,16 @@ export default () => {
       return this;
     },
 
+    destroy() {
+      const { customRte } = this;
+      globalRte && globalRte.destroy();
+      customRte && customRte.destroy && customRte.destroy();
+      toolbar = 0;
+      globalRte = 0;
+      this.actionbar = 0;
+      this.actions = 0;
+    },
+
     /**
      * Post render callback
      * @param  {View} ev
@@ -105,7 +115,7 @@ export default () => {
       const pfx = this.pfx;
       const actionbarContainer = toolbar;
       const actionbar = this.actionbar;
-      const actions = this.actions || config.actions;
+      const actions = this.actions || [...config.actions];
       const classes = {
         actionbar: `${pfx}actionbar`,
         button: `${pfx}action`,

src/rich_text_editor/model/RichTextEditor.js

@@ -126,6 +126,15 @@ export default class RichTextEditor {
     return this;
   }
 
+  destroy() {
+    this.el = 0;
+    this.doc = 0;
+    this.actionbar = 0;
+    this.settings = {};
+    this.classes = {};
+    this.actions = [];
+  }
+
   setEl(el) {
     this.el = el;
     this.doc = el.ownerDocument;