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<?php
namespace Drupal\Core\Render\Element;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;
/**
* Provides a form element for entering a password, with hidden text.
*
* Properties:
* - #size: The size of the input element in characters.
*
* Usage example:
* @code
* $form['pass'] = array(
* '#type' => 'password',
* '#title' => $this->t('Password'),
* '#size' => 25,
* );
* @endcode
*
* @see \Drupal\Core\Render\Element\PasswordConfirm
* @see \Drupal\Core\Render\Element\Textfield
*
* @FormElement("password")
*/
class Password extends FormElement {
/**
* {@inheritdoc}
*/
public function getInfo() {
$class = get_class($this);
return [
'#input' => TRUE,
'#size' => 60,
'#maxlength' => 128,
'#process' => [
[$class, 'processAjaxForm'],
[$class, 'processPattern'],
],
'#pre_render' => [
[$class, 'preRenderPassword'],
],
'#theme' => 'input__password',
'#theme_wrappers' => ['form_element'],
];
}
/**
* Prepares a #type 'password' render element for input.html.twig.
*
* @param array $element
* An associative array containing the properties of the element.
* Properties used: #title, #value, #description, #size, #maxlength,
* #placeholder, #required, #attributes.
*
* @return array
* The $element with prepared variables ready for input.html.twig.
*/
public static function preRenderPassword($element) {
$element['#attributes']['type'] = 'password';
Element::setAttributes($element, ['id', 'name', 'size', 'maxlength', 'placeholder']);
static::setAttributes($element, ['form-text']);
return $element;
}
/**
* {@inheritdoc}
*/
public static function valueCallback(&$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;
}
}