drupal/core/misc/details-aria.js

/**
* DO NOT EDIT THIS FILE.
* All changes should be applied to ./misc/details-aria.es6.js
* See the following change record for more information,
* https://www.drupal.org/node/2873849
* @preserve
**/

(function ($, Drupal) {

  'use strict';

  Drupal.behaviors.detailsAria = {
    attach: function attach() {
      $('body').once('detailsAria').on('click.detailsAria', 'summary', function (event) {
        var $summary = $(event.currentTarget);
        var open = $(event.currentTarget.parentNode).attr('open') === 'open' ? 'false' : 'true';

        $summary.attr({
          'aria-expanded': open,
          'aria-pressed': open
        });
      });
    }
  };
})(jQuery, Drupal);