Add `editor.storeData`

src/editor/index.js

@@ -486,6 +486,17 @@ export default (config = {}) => {
       return em.store(clb);
     },
 
+    /**
+     * Get the JSON data object, which could be stored and loaded back with `editor.loadData(json)`
+     * @returns {Object}
+     * @example
+     * console.log(editor.storeData());
+     * // { pages: [...], styles: [...], ... }
+     */
+    storeData() {
+      return em.storeData();
+    },
+
     /**
      * Load data from the current storage
      * @param {Function} clb Callback function

src/editor/model/Editor.js

@@ -597,16 +597,10 @@ export default Backbone.Model.extend({
    * @private
    */
   store(clb) {
-    var sm = this.get('StorageManager');
+    const sm = this.get('StorageManager');
-    var store = {};
     if (!sm) return;
 
-    // Fetch what to store
+    const store = this.storeData();
-    this.get('storables').forEach(m => {
-      var obj = m.store(1);
-      for (var el in obj) store[el] = obj[el];
-    });
-
     sm.store(store, res => {
       clb && clb(res, store);
       this.set('changesCount', 0);
@@ -616,6 +610,14 @@ export default Backbone.Model.extend({
     return store;
   },
 
+  storeData() {
+    let result = {};
+    this.get('storables').forEach(m => {
+      result = { ...result, ...m.store(1) };
+    });
+    return result;
+  },
+
   /**
    * Load data from the current storage
    * @param {Function} clb Callback function