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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\Render\Element\Textarea. | |
| */ | |
| namespace Drupal\Core\Render\Element; | |
| use Drupal\Core\Form\FormStateInterface; | |
| use Drupal\Core\Render\Element; | |
| /** | |
| * Provides a form element for input of multiple-line text. | |
| * | |
| * Properties: | |
| * - #rows: Number of rows in the text box. | |
| * - #cols: Number of columns in the text box. | |
| * - #resizable: Controls whether the text area is resizable. Allowed values | |
| * are "none", "vertical", "horizontal", or "both" (defaults to "vertical"). | |
| * | |
| * Usage example: | |
| * @code | |
| * $form['text'] = array( | |
| * '#type' => 'textarea', | |
| * '#title' => t('Text'), | |
| * ); | |
| * @endcode | |
| * | |
| * @see \Drupal\Core\Render\Element\Textfield | |
| * @see \Drupal\filter\Element\TextFormat | |
| * | |
| * @FormElement("textarea") | |
| */ | |
| class Textarea extends FormElement { | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getInfo() { | |
| $class = get_class($this); | |
| return array( | |
| '#input' => TRUE, | |
| '#cols' => 60, | |
| '#rows' => 5, | |
| '#resizable' => 'vertical', | |
| '#process' => array( | |
| array($class, 'processAjaxForm'), | |
| array($class, 'processGroup'), | |
| ), | |
| '#pre_render' => array( | |
| array($class, 'preRenderGroup'), | |
| ), | |
| '#theme' => 'textarea', | |
| '#theme_wrappers' => array('form_element'), | |
| ); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public static function valueCallback(&$element, $input, FormStateInterface $form_state) { | |
| if ($input !== FALSE && $input !== NULL) { | |
| // This should be a string, but allow other scalars since they might be | |
| // valid input in programmatic form submissions. | |
| return is_scalar($input) ? (string) $input : ''; | |
| } | |
| return NULL; | |
| } | |
| } |