class Hidden
Same name in other branches
- 9 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
- 11.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'] = [
'#type' => 'hidden',
'#value' => $entity_id,
];Attributes
#[FormElement('hidden')]Hierarchy
- class \Drupal\Component\Plugin\PluginBase implements \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
- class \Drupal\Core\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait
- class \Drupal\Core\Render\Element\RenderElementBase extends \Drupal\Core\Plugin\PluginBase implements \Drupal\Core\Render\Element\ElementInterface
- class \Drupal\Core\Render\Element\FormElementBase extends \Drupal\Core\Render\Element\RenderElementBase implements \Drupal\Core\Render\Element\FormElementInterface
- class \Drupal\Core\Render\Element\Hidden extends \Drupal\Core\Render\Element\FormElementBase
- class \Drupal\Core\Render\Element\FormElementBase extends \Drupal\Core\Render\Element\RenderElementBase implements \Drupal\Core\Render\Element\FormElementInterface
- class \Drupal\Core\Render\Element\RenderElementBase extends \Drupal\Core\Plugin\PluginBase implements \Drupal\Core\Render\Element\ElementInterface
- class \Drupal\Core\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait
Expanded class hierarchy of Hidden
See also
\Drupal\Core\Render\Element\Value
185 string references to 'Hidden'
- AjaxTest::testUiAjaxException in core/
tests/ Drupal/ FunctionalJavascriptTests/ Ajax/ AjaxTest.php - Tests that Ajax errors are visible in the UI.
- 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.
File
-
core/
lib/ Drupal/ Core/ Render/ Element/ Hidden.php, line 26
Namespace
Drupal\Core\Render\ElementView source
class Hidden extends FormElementBase {
/**
* {@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;
}
}Members
| Title Sort descending | Modifiers | Object type | Summary | Overriden Title | Overrides |
|---|---|---|---|---|---|
| FormElementBase::processAutocomplete | public static | function | Adds autocomplete functionality to elements. | 1 | |
| FormElementBase::processPattern | public static | function | #process callback for #pattern form element property. | 1 | |
| FormElementBase::validatePattern | public static | function | #element_validate callback for #pattern form element property. | 1 | |
| FormElementBase::valueCallback | public static | function | Determines how user input is mapped to an element's #value property. | Overrides FormElementInterface::valueCallback | 17 |
| Hidden::getInfo | public | function | Returns the element properties for this element. | Overrides ElementInterface::getInfo | 1 |
| Hidden::preRenderHidden | public static | function | Prepares a #type 'hidden' render element for input.html.twig. | ||
| PluginInspectionInterface::getPluginDefinition | public | function | Gets the definition of the plugin implementation. | 6 | |
| PluginInspectionInterface::getPluginId | public | function | Gets the plugin ID of the plugin instance. | 2 | |
| RenderElementBase::preRenderAjaxForm | public static | function | Adds Ajax information about an element to communicate with JavaScript. | 2 | |
| RenderElementBase::preRenderGroup | public static | function | Adds members of this group as actual elements for rendering. | 2 | |
| RenderElementBase::processAjaxForm | public static | function | Form element processing handler for the #ajax form property. | 3 | |
| RenderElementBase::processGroup | public static | function | Arranges elements into groups. | 2 | |
| RenderElementBase::setAttributes | public static | function | Sets a form element's class attribute. | Overrides ElementInterface::setAttributes | 2 |
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