(function ($) {

Drupal.behaviors.nodeFieldsetSummaries = {
  attach: function (context) {
    $('fieldset.node-form-revision-information', context).drupalSetSummary(function (context) {
      var revisionCheckbox = $('.form-item-revision input', context);

      // Return 'New revision' if the 'Create new revision' checkbox is checked,
      // or if the checkbox doesn't exist, but the revision log does. For users
      // without the "Administer content" permission the checkbox won't appear,
      // but the revision log will if the content type is set to auto-revision.
      if (revisionCheckbox.is(':checked') || (!revisionCheckbox.length && $('.form-item-log textarea', context).length)) {
        return Drupal.t('New revision');
      }

      return Drupal.t('No revision');
    });

    $('fieldset.node-form-author', context).drupalSetSummary(function (context) {
      var name = $('.form-item-name input', context).val() || Drupal.settings.anonymous,
        date = $('.form-item-date input', context).val();
      return date ?
        Drupal.t('By @name on @date', { '@name': name, '@date': date }) :
        Drupal.t('By @name', { '@name': name });
    });

    $('fieldset.node-form-options', context).drupalSetSummary(function (context) {
      var vals = [];

      $('input:checked', context).parent().each(function () {
        vals.push(Drupal.checkPlain($.trim($(this).text())));
      });

      if (!$('.form-item-status input', context).is(':checked')) {
        vals.unshift(Drupal.t('Not published'));
      }
      return vals.join(', ');
    });
  }
};

})(jQuery);