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class Item in Drupal 10

Same name and namespace in other branches
  1. 8 core/lib/Drupal/Core/Render/Element/Item.php \Drupal\Core\Render\Element\Item
  2. 9 core/lib/Drupal/Core/Render/Element/Item.php \Drupal\Core\Render\Element\Item

Provides a display-only form element with an optional title and description.

Note: since this is a read-only field, setting the #required property will do nothing except theme the form element to look as if it were actually required (i.e. by placing a red star next to the #title).

Plugin annotation

@FormElement("item");

Hierarchy

Expanded class hierarchy of Item

2 string references to 'Item'
config_test.schema.yml in core/modules/config/tests/config_test/config/schema/config_test.schema.yml
core/modules/config/tests/config_test/config/schema/config_test.schema.yml
update_test.schema.yml in core/modules/update/tests/modules/update_test/config/schema/update_test.schema.yml
core/modules/update/tests/modules/update_test/config/schema/update_test.schema.yml
41 #type uses of Item
AddFormBase::buildEntityFormElement in core/modules/media_library/src/Form/AddFormBase.php
Builds the sub-form for setting required fields on a new media item.
AddHandler::buildForm in core/modules/views_ui/src/Form/Ajax/AddHandler.php
AjaxTestImageEffect::ajaxCallback in core/modules/image/tests/modules/image_module_test/src/Plugin/ImageEffect/AjaxTestImageEffect.php
AJAX callback.
AjaxTestImageEffect::buildConfigurationForm in core/modules/image/tests/modules/image_module_test/src/Plugin/ImageEffect/AjaxTestImageEffect.php
Form constructor.
BlockInterfaceTest::testBlockInterface in core/modules/block/tests/src/Kernel/BlockInterfaceTest.php
Tests configuration and subsequent form() and build() method calls.

... See full list

File

core/lib/Drupal/Core/Render/Element/Item.php, line 14

Namespace

Drupal\Core\Render\Element
View source
class Item extends FormElement {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    return [
      // Forms that show author fields to both anonymous and authenticated users
      // need to dynamically switch between #type 'textfield' and #type 'item'
      // to automatically take over the authenticated user's information.
      // Therefore, we allow #type 'item' to receive input, which is internally
      // assigned by Form API based on the #default_value or #value properties.
      '#input' => TRUE,
      '#markup' => '',
      '#theme_wrappers' => [
        'form_element',
      ],
    ];
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DependencySerializationTrait::$_entityStorages protected property
DependencySerializationTrait::$_serviceIds protected property
DependencySerializationTrait::__sleep public function 2
DependencySerializationTrait::__wakeup public function 2
FormElement::processAutocomplete public static function Adds autocomplete functionality to elements.
FormElement::processPattern public static function #process callback for #pattern form element property.
FormElement::validatePattern public static function #element_validate callback for #pattern form element property.
FormElement::valueCallback public static function Determines how user input is mapped to an element's #value property. Overrides FormElementInterface::valueCallback 15
Item::getInfo public function Returns the element properties for this element. Overrides ElementInterface::getInfo
MessengerTrait::$messenger protected property The messenger. 18
MessengerTrait::messenger public function Gets the messenger. 18
MessengerTrait::setMessenger public function Sets the messenger.
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$pluginDefinition protected property The plugin implementation definition.
PluginBase::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function
PluginBase::getDerivativeId public function
PluginBase::getPluginDefinition public function 2
PluginBase::getPluginId public function
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginBase::__construct public function Constructs a \Drupal\Component\Plugin\PluginBase object. 53
RenderElement::preRenderAjaxForm public static function Adds Ajax information about an element to communicate with JavaScript.
RenderElement::preRenderGroup public static function Adds members of this group as actual elements for rendering.
RenderElement::processAjaxForm public static function Form element processing handler for the #ajax form property. 1
RenderElement::processGroup public static function Arranges elements into groups.
RenderElement::setAttributes public static function Sets a form element's class attribute. Overrides ElementInterface::setAttributes
StringTranslationTrait::$stringTranslation protected property The string translation service. 3
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 1
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.