class Hidden
Same name and namespace in other branches
- 11.x core/lib/Drupal/Core/Render/Element/Hidden.php \Drupal\Core\Render\Element\Hidden
- 10 core/lib/Drupal/Core/Render/Element/Hidden.php \Drupal\Core\Render\Element\Hidden
- 8.9.x core/lib/Drupal/Core/Render/Element/Hidden.php \Drupal\Core\Render\Element\Hidden
Provides a form element for an HTML 'hidden' input element.
Specify either #default_value or #value but not both.
Properties:
- #default_value: The initial value of the form element. JavaScript may alter the value prior to submission.
- #value: The value of the form element. The Form API ensures that this value remains unchanged by the browser.
Usage example:
$form['entity_id'] = array(
'#type' => 'hidden',
'#value' => $entity_id,
);Plugin annotation
@FormElement("hidden");Hierarchy
- class \Drupal\Component\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
- class \Drupal\Core\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait implements \Drupal\Component\Plugin\PluginBase
- class \Drupal\Core\Render\Element\RenderElement extends \Drupal\Core\Render\Element\ElementInterface implements \Drupal\Core\Plugin\PluginBase
- class \Drupal\Core\Render\Element\FormElement extends \Drupal\Core\Render\Element\FormElementInterface implements \Drupal\Core\Render\Element\RenderElement
- class \Drupal\Core\Render\Element\Hidden implements \Drupal\Core\Render\Element\FormElement
- class \Drupal\Core\Render\Element\FormElement extends \Drupal\Core\Render\Element\FormElementInterface implements \Drupal\Core\Render\Element\RenderElement
- class \Drupal\Core\Render\Element\RenderElement extends \Drupal\Core\Render\Element\ElementInterface implements \Drupal\Core\Plugin\PluginBase
- class \Drupal\Core\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait implements \Drupal\Component\Plugin\PluginBase
Expanded class hierarchy of Hidden
See also
\Drupal\Core\Render\Element\Value
154 string references to 'Hidden'
- BaseFieldDefinition::setDisplayConfigurable in core/
lib/ Drupal/ Core/ Field/ BaseFieldDefinition.php - Sets whether the display for the field can be configured.
- block.block.test_block.yml in core/
modules/ block/ tests/ modules/ block_test/ config/ install/ block.block.test_block.yml - core/modules/block/tests/modules/block_test/config/install/block.block.test_block.yml
- block_content_entity_display.yml in core/
modules/ block_content/ migrations/ block_content_entity_display.yml - core/modules/block_content/migrations/block_content_entity_display.yml
- ClaroEntityDisplayTest::testEntityForm in core/
tests/ Drupal/ FunctionalJavascriptTests/ Theme/ ClaroEntityDisplayTest.php - Copied from parent.
- claro_preprocess_views_exposed_form in core/
themes/ claro/ claro.theme - Implements hook_preprocess_HOOK() for views_exposed_form.
39 #type uses of Hidden
- AddFormBase::buildForm in core/
modules/ media_library/ src/ Form/ AddFormBase.php - Form constructor.
- BlockForm::form in core/
modules/ block/ src/ BlockForm.php - BlockListBuilder::buildBlocksForm in core/
modules/ block/ src/ BlockListBuilder.php - Builds the main "Blocks" portion of the form.
- BookAdminEditForm::bookAdminTable in core/
modules/ book/ src/ Form/ BookAdminEditForm.php - Builds the table portion of the form for the book administration page.
- BookAdminEditForm::bookAdminTableTree in core/
modules/ book/ src/ Form/ BookAdminEditForm.php - Helps build the main table in the book administration page form.
File
-
core/
lib/ Drupal/ Core/ Render/ Element/ Hidden.php, line 27
Namespace
Drupal\Core\Render\ElementView source
class Hidden extends FormElement {
/**
* {@inheritdoc}
*/
public function getInfo() {
$class = static::class;
return [
'#input' => TRUE,
'#process' => [
[
$class,
'processAjaxForm',
],
],
'#pre_render' => [
[
$class,
'preRenderHidden',
],
],
'#theme' => 'input__hidden',
];
}
/**
* Prepares a #type 'hidden' render element for input.html.twig.
*
* @param array $element
* An associative array containing the properties of the element.
* Properties used: #name, #value, #attributes.
*
* @return array
* The $element with prepared variables ready for input.html.twig.
*/
public static function preRenderHidden($element) {
$element['#attributes']['type'] = 'hidden';
Element::setAttributes($element, [
'name',
'value',
]);
return $element;
}
}Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.