🚑 Function 'disconnect' not working in expected way

pos_keyboard/__manifest__.py

@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 # Copyright 2015 igallyamov <https://github.com/igallyamov>
 # Copyright 2016 ufaks <https://github.com/ufaks>
 # Copyright 2016-2018 Ivan Yelizariev <https://it-projects.info/team/yelizariev>
@@ -10,14 +11,13 @@
     "category": "Point Of Sale",
     # "live_test_url": "http://apps.it-projects.info/shop/product/DEMO-URL?version={ODOO_BRANCH}",
     "images": ['images/keyboard.png'],
-    "version": "11.0.1.1.3",
+    "version": "10.0.1.1.4",
     "application": False,
 
     "author": "IT-Projects LLC, Ivan Yelizariev",
     "support": "apps@it-projects.info",
     "website": "https://it-projects.info/team/yelizariev",
     "license": "LGPL-3",
-
     "price": 15.00,
     "currency": "EUR",
 

pos_keyboard/doc/changelog.rst

@@ -1,3 +1,9 @@
+
+`1.1.5`
+-------
+
+**Fix:** Function 'disconnect' not working in expected way
+
 `1.1.4`
 -------
 

pos_keyboard/static/src/js/pos.js

@@ -3,6 +3,7 @@
     Copyright 2016 Ivan Yelizariev <https://it-projects.info/team/yelizariev>
     Copyright 2019 Kolushov Alexandr <https://it-projects.info/team/kolushovalexandr>
     Copyright 2019 ssaid <https://github.com/ssaid>
+    Copyright 2019 raulovallet <https://github.com/raulovallet>
     License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html). */
 odoo.define('pos_keyboard.pos', function (require) {
     "use strict";
@@ -269,7 +270,7 @@ odoo.define('pos_keyboard.pos', function (require) {
         // stops catching keyboard events 
         disconnect: function(){
             $('body').off('keyup', '');
-            self.active = false;
+            this.active = false;
         }
     });