class Textarea in Zircon Profile 8

Provides a form element for input of multiple-line text.

Properties:

• #rows: Number of rows in the text box.
• #cols: Number of columns in the text box.
• #resizable: Controls whether the text area is resizable. Allowed values are "none", "vertical", "horizontal", or "both" (defaults to "vertical").

Usage example:

$form['text'] = array(
  '#type' => 'textarea',
  '#title' => t('Text'),
);

Plugin annotation

@FormElement("textarea");

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, StringTranslationTrait
    • class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
      • class \Drupal\Core\Render\Element\FormElement implements FormElementInterface
        • class \Drupal\Core\Render\Element\Textarea

See also

\Drupal\Core\Render\Element\Textfield

\Drupal\filter\Element\TextFormat

1 file declares its use of Textarea

TextareaTest.php in core/tests/Drupal/Tests/Core/Render/Element/TextareaTest.php

Contains \Drupal\Tests\Core\Render\Element\TextareaTest.

33 #type uses of Textarea

AccountSettingsForm::buildForm in core/modules/user/src/AccountSettingsForm.php

Form constructor.

BlockContentForm::form in core/modules/block_content/src/BlockContentForm.php

Gets the actual form array to be built.

BlockContentTypeForm::form in core/modules/block_content/src/BlockContentTypeForm.php

Gets the actual form array to be built.

CKEditor::settingsForm in core/modules/ckeditor/src/Plugin/Editor/CKEditor.php

Returns a settings form to configure this text editor.

CommentTypeForm::form in core/modules/comment/src/CommentTypeForm.php

Gets the actual form array to be built.

... See full list

File

core/lib/Drupal/Core/Render/Element/Textarea.php, line 35

Contains \Drupal\Core\Render\Element\Textarea.

Namespace

Drupal\Core\Render\Element

class Textarea extends FormElement {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    $class = get_class($this);
    return array(
      '#input' => TRUE,
      '#cols' => 60,
      '#rows' => 5,
      '#resizable' => 'vertical',
      '#process' => array(
        array(
          $class,
          'processAjaxForm',
        ),
        array(
          $class,
          'processGroup',
        ),
      ),
      '#pre_render' => array(
        array(
          $class,
          'preRenderGroup',
        ),
      ),
      '#theme' => 'textarea',
      '#theme_wrappers' => array(
        'form_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;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
FormElement::processAutocomplete	public static	function	Adds autocomplete functionality to elements.
FormElement::processPattern	public static	function	#process callback for #pattern form element property.
FormElement::validatePattern	public static	function	#element_validate callback for #pattern form element property.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	2
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	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::__construct	public	function	Constructs a Drupal\Component\Plugin\PluginBase object.	69
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.
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.
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.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
Textarea::getInfo	public	function	Returns the element properties for this element. Overrides ElementInterface::getInfo
Textarea::valueCallback	public static	function	Determines how user input is mapped to an element's #value property. Overrides FormElement::valueCallback