Club Drupal

<?php

/**

 * @file

 * pre-render.inc

 *

 * Contains various implementations for #pre_render callbacks on elements.

 */

/**

 * Implements hook_pre_render().

 */

function bootstrap_pre_render($element) {

  if (!empty($element['#bootstrap_ignore_pre_render'])) {

    return $element;

  }

  // Only add the "form-control" class for specific element input types.

  $types = array(

    // Core.

    'password',

    'password_confirm',

    'machine_name',

    'select',

    'textarea',

    'textfield',

    // Elements module (HTML5).

    'date',

    'datefield',

    'email',

    'emailfield',

    'number',

    'numberfield',

    'range',

    'rangefield',

    'search',

    'searchfield',

    'tel',

    'telfield',

    'url',

    'urlfield',

    // Webform module.

    'webform_email',

    'webform_number',

  );

  // Add necessary classes for specific types.

  if ($type = !empty($element['#type']) ? $element['#type'] : FALSE) {

    if (in_array($type, $types) || ($type === 'file' && empty($element['#managed_file']))) {

      $element['#attributes']['class'][] = 'form-control';

    }

    if ($type === 'machine_name') {

      $element['#wrapper_attributes']['class'][] = 'form-inline';

    }

  }

  // Add smart descriptions to the element, if necessary.

  bootstrap_element_smart_description($element);

  // Return the modified element.

  return $element;

}

/**

 * Implements hook_pre_render_HOOK().

 */

function bootstrap_pre_render_fieldset($element) {

  // Fieldsets may be rendered outside of a Form API context.

  if (!empty($element['#bootstrap_ignore_pre_render']) || !isset($element['#parents']) || !isset($element['#groups'])) {

    return $element;

  }

  // Inject group member elements belonging to this group.

  $parents = implode('][', $element['#parents']);

  $children = element_children($element['#groups'][$parents]);

  if (!empty($children)) {

    if (empty($element['#default_tab'])) {

      $children_keys = array_values($children);

      $element['#default_tab'] = $element['#groups'][$parents][array_shift($children_keys)]['#id'];

    }

    foreach ($children as $key) {

      // Break references and indicate that the element should be rendered as

      // group member.

      $child = (array) $element['#groups'][$parents][$key];

      $child['#attributes']['id'] = $child['#id'];

      $child['#group_fieldset'] = TRUE;

      // Inject the element as new child element.

      $element[] = $child;

      $sort = TRUE;

    }

    // Re-sort the element's children if we injected group member elements.

    if (isset($sort)) {

      $element['#sorted'] = FALSE;

    }

  }

  if (isset($element['#group'])) {

    $group = $element['#group'];

    // If this element belongs to a group, but the group-holding element does

    // not exist, we need to render it (at its original location).

    if (!isset($element['#groups'][$group]['#group_exists'])) {

      // Intentionally empty to clarify the flow; we simply return $element.

    }

    // If we injected this element into the group, then we want to render it.

    elseif (!empty($element['#group_fieldset'])) {

      // Intentionally empty to clarify the flow; we simply return $element.

    }

    // Otherwise, this element belongs to a group and the group exists, so we do

    // not render it.

    elseif (element_children($element['#groups'][$group])) {

      $element['#printed'] = TRUE;

    }

  }

  return $element;

}