corectly bind this

Author: Nazar65

lib/web/mage/adminhtml/browser.js

@@ -19,7 +19,7 @@ define([
 ], function ($, wysiwyg, prompt, confirm, alert, _) {
     window.MediabrowserUtility = {
         windowId: 'modal_dialog_message',
-        modalLoaded: false,
+        intialized: false,
         targetElementId: false,
 
         /**
@@ -51,17 +51,16 @@ define([
          */
         openDialog: function (url, width, height, title, options) {
             var windowId = this.windowId,
-                content = '<div class="popup-window" id="' + windowId + '"></div>',
-                self = this;
+                content = '<div class="popup-window" id="' + windowId + '"></div>';
 
-            if (this.modalLoaded) {
+            if (this.initialized) {
 
                 if (!_.isUndefined(options)) {
                     this.modal.modal('option', 'closed', options.closed);
                 }
 
                 this.modal.modal('openModal');
-                self.setTargetElementId(options, url);
+                this.setTargetElementId(options, url);
                 $(window).trigger('reload.MediaGallery');
 
                 return;
@@ -83,10 +82,10 @@ define([
                 showLoader: true
 
             }).done(function (data) {
-                self.modal.html(data).trigger('contentUpdated');
-                self.modalLoaded = true;
-                self.setTargetElementId(options, url);
-            });
+                this.modal.html(data).trigger('contentUpdated');
+                this.initialized = true;
+                this.setTargetElementId(options, url);
+            }.bind(this));
 
         },