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Dries Buytaert
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(function ($) {
Drupal.behaviors.menuChangeParentItems = {
attach: function (context, settings) {
$('fieldset#edit-menu input').each(function () {
$(this).change(function () {
// Update list of available parent menu items.
Drupal.menu_update_parent_list();
});
});
}
}
/**
* Function to set the options of the menu parent item dropdown.
*/
Drupal.menu_update_parent_list = function () {
var values = [];
$('input:checked', $('fieldset#edit-menu')).each(function () {
// Get the names of all checked menus.
values.push(Drupal.checkPlain($.trim($(this).val())));
});
var url = Drupal.settings.basePath + 'admin/structure/menu/parents';
$.ajax({
url: location.protocol + '//' + location.host + url,
type: 'POST',
data: {'menus[]' : values},
dataType: 'json',
success: function (options) {
// Save key of last selected element.
var selected = $('fieldset#edit-menu #edit-menu-parent :selected').val();
// Remove all exisiting options from dropdown.
$('fieldset#edit-menu #edit-menu-parent').children().remove();
// Add new options to dropdown.
jQuery.each(options, function(index, value) {
$('fieldset#edit-menu #edit-menu-parent').append(
$('<option ' + (index == selected ? ' selected="selected"' : '') + '></option>').val(index).text(value)
);
});
}
});
}
})(jQuery);