public static function WebformCodeMirror::valueCallback in Webform 6.x

Same name and namespace in other branches

1. 8.5 src/Element/WebformCodeMirror.php \Drupal\webform\Element\WebformCodeMirror::valueCallback()

Determines how user input is mapped to an element's #value property.

Parameters

array $element: An associative array containing the properties of the element.

mixed $input: The incoming input to populate the form element. If this is FALSE, the element's default value should be returned.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

mixed The value to assign to the element.

Overrides Textarea::valueCallback

File

src/Element/WebformCodeMirror.php, line 71

Class

WebformCodeMirror

Provides a webform element for using CodeMirror.

Namespace

Drupal\webform\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
  if ($input === FALSE && $element['#mode'] === 'yaml' && isset($element['#default_value'])) {

    // Convert associative array in default value to YAML.
    if (is_array($element['#default_value'])) {
      $element['#default_value'] = WebformYaml::encode($element['#default_value']);
    }

    // Convert empty YAML into an empty string.
    if ($element['#default_value'] === '{  }') {
      $element['#default_value'] = '';
    }
    return $element['#default_value'];
  }
  return NULL;
}