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class Textfield in Drupal 9

Same name in this branch
  1. 9 core/modules/config_translation/src/FormElement/Textfield.php \Drupal\config_translation\FormElement\Textfield
  2. 9 core/lib/Drupal/Core/Render/Element/Textfield.php \Drupal\Core\Render\Element\Textfield
  3. 9 core/modules/text/src/Plugin/migrate/field/d6/TextField.php \Drupal\text\Plugin\migrate\field\d6\TextField
  4. 9 core/modules/text/src/Plugin/migrate/field/d7/TextField.php \Drupal\text\Plugin\migrate\field\d7\TextField
Same name and namespace in other branches
  1. 8 core/lib/Drupal/Core/Render/Element/Textfield.php \Drupal\Core\Render\Element\Textfield

Provides a one-line text field form element.

Properties:

  • #maxlength: Maximum number of characters of input allowed.
  • #size: The size of the input element in characters.
  • #autocomplete_route_name: A route to be used as callback URL by the autocomplete JavaScript library.
  • #autocomplete_route_parameters: An array of parameters to be used in conjunction with the route name.
  • #pattern: A string for the native HTML5 pattern attribute.

Usage example:

$form['title'] = array(
  '#type' => 'textfield',
  '#title' => $this
    ->t('Subject'),
  '#default_value' => $node->title,
  '#size' => 60,
  '#maxlength' => 128,
  '#pattern' => 'some-prefix-[a-z]+',
  '#required' => TRUE,
);

Plugin annotation

@FormElement("textfield");

Hierarchy

Expanded class hierarchy of Textfield

See also

\Drupal\Core\Render\Element\Color

\Drupal\Core\Render\Element\Email

\Drupal\Core\Render\Element\MachineName

\Drupal\Core\Render\Element\Number

\Drupal\Core\Render\Element\Password

\Drupal\Core\Render\Element\PasswordConfirm

\Drupal\Core\Render\Element\Range

\Drupal\Core\Render\Element\Tel

\Drupal\Core\Render\Element\Url

3 files declare their use of Textfield
color.module in core/modules/color/color.module
Allows users to change the color scheme of themes.
EntityAutocomplete.php in core/lib/Drupal/Core/Entity/Element/EntityAutocomplete.php
TextfieldTest.php in core/tests/Drupal/Tests/Core/Render/Element/TextfieldTest.php
1 string reference to 'Textfield'
FormTestProgrammaticForm::buildForm in core/modules/system/tests/modules/form_test/src/Form/FormTestProgrammaticForm.php
Form constructor.
258 #type uses of Textfield
AccountForm::form in core/modules/user/src/AccountForm.php
Gets the actual form array to be built.
AccountSettingsForm::buildForm in core/modules/user/src/AccountSettingsForm.php
Form constructor.
ActionAjaxTest::buildConfigurationForm in core/modules/action/tests/action_form_ajax_test/src/Plugin/Action/ActionAjaxTest.php
Form constructor.
ActionFormBase::form in core/modules/action/src/Form/ActionFormBase.php
Gets the actual form array to be built.
AddHandler::buildForm in core/modules/views_ui/src/Form/Ajax/AddHandler.php
Form constructor.

... See full list

File

core/lib/Drupal/Core/Render/Element/Textfield.php, line 45

Namespace

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

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    $class = static::class;
    return [
      '#input' => TRUE,
      '#size' => 60,
      '#maxlength' => 128,
      '#autocomplete_route_name' => FALSE,
      '#process' => [
        [
          $class,
          'processAutocomplete',
        ],
        [
          $class,
          'processAjaxForm',
        ],
        [
          $class,
          'processPattern',
        ],
        [
          $class,
          'processGroup',
        ],
      ],
      '#pre_render' => [
        [
          $class,
          'preRenderTextfield',
        ],
        [
          $class,
          'preRenderGroup',
        ],
      ],
      '#theme' => 'input__textfield',
      '#theme_wrappers' => [
        '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.
      if (!is_scalar($input)) {
        $input = '';
      }
      return str_replace([
        "\r",
        "\n",
      ], '', $input);
    }
    return NULL;
  }

  /**
   * Prepares a #type 'textfield' render element for input.html.twig.
   *
   * @param array $element
   *   An associative array containing the properties of the element.
   *   Properties used: #title, #value, #description, #size, #maxlength,
   *   #placeholder, #required, #attributes.
   *
   * @return array
   *   The $element with prepared variables ready for input.html.twig.
   */
  public static function preRenderTextfield($element) {
    $element['#attributes']['type'] = 'text';
    Element::setAttributes($element, [
      'id',
      'name',
      'value',
      'size',
      'maxlength',
      'placeholder',
    ]);
    static::setAttributes($element, [
      'form-text',
    ]);
    return $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.
MessengerTrait::$messenger protected property The messenger. 27
MessengerTrait::messenger public function Gets the messenger. 27
MessengerTrait::setMessenger public function Sets the messenger.
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$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 2
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginBase::__construct public function Constructs a \Drupal\Component\Plugin\PluginBase object. 98
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. 4
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.
Textfield::getInfo public function Returns the element properties for this element. Overrides ElementInterface::getInfo 3
Textfield::preRenderTextfield public static function Prepares a #type 'textfield' render element for input.html.twig.
Textfield::valueCallback public static function Determines how user input is mapped to an element's #value property. Overrides FormElement::valueCallback 3