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