function form_process_vertical_tabs

Creates a group formatted as vertical tabs.


$element: An associative array containing the properties and children of the fieldset.

$form_state: The $form_state array for the form this vertical tab widget belongs to.

Return value

The processed element.

Related topics

1 string reference to 'form_process_vertical_tabs'
system_element_info in drupal/modules/system/system.module
Implements hook_element_info().


drupal/includes/, line 3843
Functions for form and batch generation and processing.


function form_process_vertical_tabs($element, &$form_state) {

  // Inject a new fieldset as child, so that form_process_fieldset() processes
  // this fieldset like any other fieldset.
  $element['group'] = array(
    '#type' => 'fieldset',
    '#theme_wrappers' => array(),
    '#parents' => $element['#parents'],

  // The JavaScript stores the currently selected tab in this hidden
  // field so that the active tab can be restored the next time the
  // form is rendered, e.g. on preview pages or when form validation
  // fails.
  $name = implode('__', $element['#parents']);
  if (isset($form_state['values'][$name . '__active_tab'])) {
    $element['#default_tab'] = $form_state['values'][$name . '__active_tab'];
  $element[$name . '__active_tab'] = array(
    '#type' => 'hidden',
    '#default_value' => $element['#default_tab'],
    '#attributes' => array(
      'class' => array(
  return $element;