drupalcampbristol/web/core/misc/collapse.js

/**
* DO NOT EDIT THIS FILE.
* See the following change record for more information,
* https://www.drupal.org/node/2815083
* @preserve
**/

(function ($, Modernizr, Drupal) {
  function CollapsibleDetails(node) {
    this.$node = $(node);
    this.$node.data('details', this);

    var anchor = window.location.hash && window.location.hash !== '#' ? ', ' + window.location.hash : '';
    if (this.$node.find('.error' + anchor).length) {
      this.$node.attr('open', true);
    }

    this.setupSummary();

    this.setupLegend();
  }

  $.extend(CollapsibleDetails, {
    instances: []
  });

  $.extend(CollapsibleDetails.prototype, {
    setupSummary: function setupSummary() {
      this.$summary = $('<span class="summary"></span>');
      this.$node.on('summaryUpdated', $.proxy(this.onSummaryUpdated, this)).trigger('summaryUpdated');
    },
    setupLegend: function setupLegend() {
      var $legend = this.$node.find('> summary');

      $('<span class="details-summary-prefix visually-hidden"></span>').append(this.$node.attr('open') ? Drupal.t('Hide') : Drupal.t('Show')).prependTo($legend).after(document.createTextNode(' '));

      $('<a class="details-title"></a>').attr('href', '#' + this.$node.attr('id')).prepend($legend.contents()).appendTo($legend);

      $legend.append(this.$summary).on('click', $.proxy(this.onLegendClick, this));
    },
    onLegendClick: function onLegendClick(e) {
      this.toggle();
      e.preventDefault();
    },
    onSummaryUpdated: function onSummaryUpdated() {
      var text = $.trim(this.$node.drupalGetSummary());
      this.$summary.html(text ? ' (' + text + ')' : '');
    },
    toggle: function toggle() {
      var _this = this;

      var isOpen = !!this.$node.attr('open');
      var $summaryPrefix = this.$node.find('> summary span.details-summary-prefix');
      if (isOpen) {
        $summaryPrefix.html(Drupal.t('Show'));
      } else {
        $summaryPrefix.html(Drupal.t('Hide'));
      }

      setTimeout(function () {
        _this.$node.attr('open', !isOpen);
      }, 0);
    }
  });

  Drupal.behaviors.collapse = {
    attach: function attach(context) {
      if (Modernizr.details) {
        return;
      }
      var $collapsibleDetails = $(context).find('details').once('collapse').addClass('collapse-processed');
      if ($collapsibleDetails.length) {
        for (var i = 0; i < $collapsibleDetails.length; i++) {
          CollapsibleDetails.instances.push(new CollapsibleDetails($collapsibleDetails[i]));
        }
      }
    }
  };

  var handleFragmentLinkClickOrHashChange = function handleFragmentLinkClickOrHashChange(e, $target) {
    $target.parents('details').not('[open]').find('> summary').trigger('click');
  };

  $('body').on('formFragmentLinkClickOrHashChange.details', handleFragmentLinkClickOrHashChange);

  Drupal.CollapsibleDetails = CollapsibleDetails;
})(jQuery, Modernizr, Drupal);