function RenderElementBase::setAttributes

File

core/lib/Drupal/Core/Render/Element/RenderElementBase.php, line 132

Class

RenderElementBase

Provides a base class for render element plugins.

Namespace

Code

public static function setAttributes(&$element, $class = []) {
  if (!empty($class)) {
    if (!isset($element['#attributes']['class'])) {
      $element['#attributes']['class'] = [];
    }
    $element['#attributes']['class'] = array_merge($element['#attributes']['class'], $class);
  }
  // This function is invoked from form element theme functions, but the
  // rendered form element may not necessarily have been processed by
  // \Drupal::formBuilder()->doBuildForm().
  if (!empty($element['#required'])) {
    $element['#attributes']['class'][] = 'required';
    $element['#attributes']['required'] = 'required';
    $element['#attributes']['aria-required'] = 'true';
  }
  if (isset($element['#parents']) && isset($element['#errors']) && !empty($element['#validated'])) {
    $element['#attributes']['class'][] = 'error';
    $element['#attributes']['aria-invalid'] = 'true';
  }
}