_form_set_class

Sets a form element's class attribute.

Adds 'required' and 'error' classes as needed.

Parameters

$element: The form element.

$name: Array of new class names to be added.

Related topics

Form generation

Functions to enable the processing and display of HTML forms.

14 calls to _form_set_class()

File

core/includes/form.inc, line 4491

Functions for form and batch generation and processing.

Code

function _form_set_class(&$element, $class = array()) {
  if (!empty($class)) {
    if (!isset($element['#attributes']['class'])) {
      $element['#attributes']['class'] = array();
    }
    $element['#attributes']['class'] = array_merge($element['#attributes']['class'], $class);
  }
  // This function is invoked from form element theme functions, but the
  // rendered form element may not necessarily have been processed by
  // form_builder().
  if (!empty($element['#required'])) {
    $element['#attributes']['class'][] = 'required';
    // @todo Rename the _form_set_class() function to reflect that we're setting
//   non-class attributes too.
    $element['#attributes']['required'] = 'required';
    $element['#attributes']['aria-required'] = 'true';
  }
  if (isset($element['#parents']) && form_get_error($element)) {
    $element['#attributes']['class'][] = 'error';
  }
}