Radio.php in Zircon Profile 8.0
Same filename and directory in other branches
Contains \Drupal\Core\Render\Element\Radio.
Namespace
Drupal\Core\Render\ElementFile
core/lib/Drupal/Core/Render/Element/Radio.phpView source
<?php
/**
* @file
* Contains \Drupal\Core\Render\Element\Radio.
*/
namespace Drupal\Core\Render\Element;
use Drupal\Core\Render\Element;
/**
* Provides a form element for a single radio button.
*
* This is an internal element that is primarily used to render the radios form
* element. Refer to \Drupal\Core\Render\Element\Radios for more documentation.
*
* @see \Drupal\Core\Render\Element\Radios
* @see \Drupal\Core\Render\Element\Checkbox
*
* @FormElement("radio")
*/
class Radio extends FormElement {
/**
* {@inheritdoc}
*/
public function getInfo() {
$class = get_class($this);
return array(
'#input' => TRUE,
'#default_value' => NULL,
'#process' => array(
array(
$class,
'processAjaxForm',
),
),
'#pre_render' => array(
array(
$class,
'preRenderRadio',
),
),
'#theme' => 'input__radio',
'#theme_wrappers' => array(
'form_element',
),
'#title_display' => 'after',
);
}
/**
* Prepares a #type 'radio' render element for input.html.twig.
*
* @param array $element
* An associative array containing the properties of the element.
* Properties used: #required, #return_value, #value, #attributes, #title,
* #description.
*
* Note: The input "name" attribute needs to be sanitized before output, which
* is currently done by initializing Drupal\Core\Template\Attribute with
* all the attributes.
*
* @return array
* The $element with prepared variables ready for input.html.twig.
*/
public static function preRenderRadio($element) {
$element['#attributes']['type'] = 'radio';
Element::setAttributes($element, array(
'id',
'name',
'#return_value' => 'value',
));
if (isset($element['#return_value']) && $element['#value'] !== FALSE && $element['#value'] == $element['#return_value']) {
$element['#attributes']['checked'] = 'checked';
}
static::setAttributes($element, array(
'form-radio',
));
return $element;
}
}