(function () {
  'use strict';

  /**
   * @package     Joomla.Site
   * @subpackage  Templates.cassiopeia
   * @copyright   (C) 2020 Open Source Matters, Inc. <https://www.joomla.org>
   * @license     GNU General Public License version 2 or later; see LICENSE.txt
   * @since       4.0.0
   */
  document.addEventListener('DOMContentLoaded', function () {
    var allMenus = document.querySelectorAll('ul.mod-menu_dropdown-metismenu');
    allMenus.forEach(function (menu) {
      // eslint-disable-next-line no-new, no-undef
      var mm = new MetisMenu(menu, {
        triggerElement: 'button.mm-toggler'
      }).on('shown.metisMenu', function (event) {
        window.addEventListener('click', function mmClick(e) {
          if (!event.target.contains(e.target)) {
            mm.hide(event.detail.shownElement);
            window.removeEventListener('click', mmClick);
          }
        });
      });
    });
  });

})();
