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path: root/core/misc/vertical-tabs.js
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/**
* DO NOT EDIT THIS FILE.
* See the following change record for more information,
* https://www.drupal.org/node/2815083
* @preserve
**/

(function ($, Drupal, drupalSettings) {
  var handleFragmentLinkClickOrHashChange = function handleFragmentLinkClickOrHashChange(e, $target) {
    $target.parents('.vertical-tabs__pane').each(function (index, pane) {
      $(pane).data('verticalTab').focus();
    });
  };

  Drupal.behaviors.verticalTabs = {
    attach: function attach(context) {
      var width = drupalSettings.widthBreakpoint || 640;
      var mq = '(max-width: ' + width + 'px)';

      if (window.matchMedia(mq).matches) {
        return;
      }

      $('body').once('vertical-tabs-fragments').on('formFragmentLinkClickOrHashChange.verticalTabs', handleFragmentLinkClickOrHashChange);

      $(context).find('[data-vertical-tabs-panes]').once('vertical-tabs').each(function () {
        var $this = $(this).addClass('vertical-tabs__panes');
        var focusID = $this.find(':hidden.vertical-tabs__active-tab').val();
        var tabFocus = void 0;

        var $details = $this.find('> details');
        if ($details.length === 0) {
          return;
        }

        var tabList = $('<ul class="vertical-tabs__menu"></ul>');
        $this.wrap('<div class="vertical-tabs clearfix"></div>').before(tabList);

        $details.each(function () {
          var $that = $(this);
          var verticalTab = new Drupal.verticalTab({
            title: $that.find('> summary').text(),
            details: $that
          });
          tabList.append(verticalTab.item);
          $that.removeClass('collapsed').attr('open', true).addClass('vertical-tabs__pane').data('verticalTab', verticalTab);
          if (this.id === focusID) {
            tabFocus = $that;
          }
        });

        $(tabList).find('> li').eq(0).addClass('first');
        $(tabList).find('> li').eq(-1).addClass('last');

        if (!tabFocus) {
          var $locationHash = $this.find(window.location.hash);
          if (window.location.hash && $locationHash.length) {
            tabFocus = $locationHash.closest('.vertical-tabs__pane');
          } else {
            tabFocus = $this.find('> .vertical-tabs__pane').eq(0);
          }
        }
        if (tabFocus.length) {
          tabFocus.data('verticalTab').focus();
        }
      });
    }
  };

  Drupal.verticalTab = function (settings) {
    var self = this;
    $.extend(this, settings, Drupal.theme('verticalTab', settings));

    this.link.attr('href', '#' + settings.details.attr('id'));

    this.link.on('click', function (e) {
      e.preventDefault();
      self.focus();
    });

    this.link.on('keydown', function (event) {
      if (event.keyCode === 13) {
        event.preventDefault();
        self.focus();

        $('.vertical-tabs__pane :input:visible:enabled').eq(0).trigger('focus');
      }
    });

    this.details.on('summaryUpdated', function () {
      self.updateSummary();
    }).trigger('summaryUpdated');
  };

  Drupal.verticalTab.prototype = {
    focus: function focus() {
      this.details.siblings('.vertical-tabs__pane').each(function () {
        var tab = $(this).data('verticalTab');
        tab.details.hide();
        tab.item.removeClass('is-selected');
      }).end().show().siblings(':hidden.vertical-tabs__active-tab').val(this.details.attr('id'));
      this.item.addClass('is-selected');

      $('#active-vertical-tab').remove();
      this.link.append('<span id="active-vertical-tab" class="visually-hidden">' + Drupal.t('(active tab)') + '</span>');
    },
    updateSummary: function updateSummary() {
      this.summary.html(this.details.drupalGetSummary());
    },
    tabShow: function tabShow() {
      this.item.show();

      this.item.closest('.js-form-type-vertical-tabs').show();

      this.item.parent().children('.vertical-tabs__menu-item').removeClass('first').filter(':visible').eq(0).addClass('first');

      this.details.removeClass('vertical-tab--hidden').show();

      this.focus();
      return this;
    },
    tabHide: function tabHide() {
      this.item.hide();

      this.item.parent().children('.vertical-tabs__menu-item').removeClass('first').filter(':visible').eq(0).addClass('first');

      this.details.addClass('vertical-tab--hidden').hide();

      var $firstTab = this.details.siblings('.vertical-tabs__pane:not(.vertical-tab--hidden)').eq(0);
      if ($firstTab.length) {
        $firstTab.data('verticalTab').focus();
      } else {
          this.item.closest('.js-form-type-vertical-tabs').hide();
        }
      return this;
    }
  };

  Drupal.theme.verticalTab = function (settings) {
    var tab = {};
    tab.item = $('<li class="vertical-tabs__menu-item" tabindex="-1"></li>').append(tab.link = $('<a href="#"></a>').append(tab.title = $('<strong class="vertical-tabs__menu-item-title"></strong>').text(settings.title)).append(tab.summary = $('<span class="vertical-tabs__menu-item-summary"></span>')));
    return tab;
  };
})(jQuery, Drupal, drupalSettings);