Default page callback for batches.
function system_batch_page() {
require_once DRUPAL_ROOT . '/core/includes/batch.inc';
$output = _batch_page();
if ($output === FALSE) {
throw new AccessDeniedHttpException();
}
elseif ($output instanceof Response) {
return $output;
}
elseif (isset($output)) {
// Force a page without blocks or messages to
// display a list of collected messages later.
drupal_set_page_content($output);
$page = element_info('page');
$page['#show_messages'] = FALSE;
return $page;
}
}