69 lines
2 KiB
JavaScript
69 lines
2 KiB
JavaScript
/**
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* @file
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* Menu UI admin behaviors.
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*/
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(function ($) {
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'use strict';
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/**
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*
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* @type {Drupal~behavior}
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*/
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Drupal.behaviors.menuUiChangeParentItems = {
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attach: function (context, settings) {
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var $menu = $('#edit-menu').once('menu-parent');
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if ($menu.length) {
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// Update the list of available parent menu items to match the initial
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// available menus.
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Drupal.menuUiUpdateParentList();
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// Update list of available parent menu items.
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$menu.on('change', 'input', Drupal.menuUiUpdateParentList);
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}
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}
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};
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/**
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* Function to set the options of the menu parent item dropdown.
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*/
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Drupal.menuUiUpdateParentList = function () {
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var $menu = $('#edit-menu');
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var values = [];
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$menu.find('input:checked').each(function () {
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// Get the names of all checked menus.
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values.push(Drupal.checkPlain($.trim($(this).val())));
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});
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$.ajax({
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url: location.protocol + '//' + location.host + Drupal.url('admin/structure/menu/parents'),
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type: 'POST',
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data: {'menus[]': values},
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dataType: 'json',
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success: function (options) {
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var $select = $('#edit-menu-parent');
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// Save key of last selected element.
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var selected = $select.val();
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// Remove all existing options from dropdown.
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$select.children().remove();
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// Add new options to dropdown. Keep a count of options for testing later.
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var totalOptions = 0;
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for (var machineName in options) {
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if (options.hasOwnProperty(machineName)) {
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$select.append(
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$('<option ' + (machineName === selected ? ' selected="selected"' : '') + '></option>').val(machineName).text(options[machineName])
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);
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totalOptions++;
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}
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}
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// Hide the parent options if there are no options for it.
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$select.closest('div').toggle(totalOptions > 0).attr('hidden', totalOptions === 0);
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}
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});
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};
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})(jQuery);
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