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   1  (function () {
   2    'use strict';
   3  
   4    /**
   5     * @package     Joomla.Site
   6     * @subpackage  Templates.cassiopeia
   7     * @copyright   (C) 2020 Open Source Matters, Inc. <https://www.joomla.org>
   8     * @license     GNU General Public License version 2 or later; see LICENSE.txt
   9     * @since       4.0.0
  10     */
  11    document.addEventListener('DOMContentLoaded', function () {
  12      var allMenus = document.querySelectorAll('ul.mod-menu_dropdown-metismenu');
  13      allMenus.forEach(function (menu) {
  14        // eslint-disable-next-line no-new, no-undef
  15        var mm = new MetisMenu(menu, {
  16          triggerElement: 'button.mm-toggler'
  17        }).on('shown.metisMenu', function (event) {
  18          window.addEventListener('click', function mmClick(e) {
  19            if (!event.target.contains(e.target)) {
  20              mm.hide(event.detail.shownElement);
  21              window.removeEventListener('click', mmClick);
  22            }
  23          });
  24        });
  25      });
  26    });
  27  
  28  })();