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class AjaxFormBlock in Drupal 10

Same name and namespace in other branches
  1. 8 core/modules/system/tests/modules/ajax_forms_test/src/Plugin/Block/AjaxFormBlock.php \Drupal\ajax_forms_test\Plugin\Block\AjaxFormBlock
  2. 9 core/modules/system/tests/modules/ajax_forms_test/src/Plugin/Block/AjaxFormBlock.php \Drupal\ajax_forms_test\Plugin\Block\AjaxFormBlock

Provides an AJAX form block.

Plugin annotation


@Block(
  id = "ajax_forms_test_block",
  admin_label = @Translation("AJAX test form"),
  category = @Translation("Forms")
)

Hierarchy

Expanded class hierarchy of AjaxFormBlock

File

core/modules/system/tests/modules/ajax_forms_test/src/Plugin/Block/AjaxFormBlock.php, line 22

Namespace

Drupal\ajax_forms_test\Plugin\Block
View source
class AjaxFormBlock extends BlockBase implements FormInterface, ContainerFactoryPluginInterface {

  /**
   * The form builder.
   *
   * @var \Drupal\Core\Form\FormBuilderInterface
   */
  protected $formBuilder;

  /**
   * The messenger.
   *
   * @var \Drupal\Core\Messenger\MessengerInterface
   */
  protected $messenger;

  /**
   * Constructs a new AjaxFormBlock.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin ID for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Form\FormBuilderInterface $form_builder
   *   The form builder.
   * @param \Drupal\Core\Messenger\MessengerInterface $messenger
   *   The messenger.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, FormBuilderInterface $form_builder, MessengerInterface $messenger) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->formBuilder = $form_builder;
    $this->messenger = $messenger;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('form_builder'), $container
      ->get('messenger'));
  }

  /**
   * {@inheritdoc}
   */
  public function build() {
    return $this->formBuilder
      ->getForm($this);
  }

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'ajax_forms_test_block';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {
    $form['test1'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Test 1'),
      '#required' => TRUE,
      '#options' => [
        'option1' => $this
          ->t('Option 1'),
        'option2' => $this
          ->t('Option 2'),
      ],
      '#ajax' => [
        'callback' => '::updateOptions',
        'wrapper' => 'edit-test1-wrapper',
      ],
      '#prefix' => '<div id="edit-test1-wrapper">',
      '#suffix' => '</div>',
    ];
    $form['actions'] = [
      '#type' => 'actions',
    ];
    $form['actions']['submit'] = [
      '#type' => 'submit',
      '#value' => $this
        ->t('Submit'),
    ];
    return $form;
  }

  /**
   * Updates the options of a select list.
   *
   * @param array $form
   *   An associative array containing the structure of the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @return array
   *   The updated form element.
   */
  public function updateOptions(array $form, FormStateInterface $form_state) {
    $form['test1']['#options']['option1'] = $this
      ->t('Option 1!!!');
    $form['test1']['#options'] += [
      'option3' => $this
        ->t('Option 3'),
      'option4' => $this
        ->t('Option 4'),
    ];
    return $form['test1'];
  }

  /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->messenger
      ->addStatus('Submission successful.');
  }

}

Members

Namesort descending Modifiers Type Description Overrides
AjaxFormBlock::$formBuilder protected property The form builder.
AjaxFormBlock::$messenger protected property The messenger. Overrides MessengerTrait::$messenger
AjaxFormBlock::build public function Builds and returns the renderable array for this block plugin. Overrides BlockPluginInterface::build
AjaxFormBlock::buildForm public function Form constructor. Overrides FormInterface::buildForm
AjaxFormBlock::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
AjaxFormBlock::getFormId public function Returns a unique string identifying the form. Overrides FormInterface::getFormId
AjaxFormBlock::submitForm public function Form submission handler. Overrides FormInterface::submitForm
AjaxFormBlock::updateOptions public function Updates the options of a select list.
AjaxFormBlock::validateForm public function Form validation handler. Overrides FormInterface::validateForm
AjaxFormBlock::__construct public function Constructs a new AjaxFormBlock. Overrides BlockPluginTrait::__construct
BlockBase::buildConfigurationForm public function
BlockPluginInterface::BLOCK_LABEL_VISIBLE constant Indicates the block label (title) should be displayed to end users.
BlockPluginTrait::$inPreview protected property Whether the plugin is being rendered in preview mode.
BlockPluginTrait::$transliteration protected property The transliteration service.
BlockPluginTrait::access public function
BlockPluginTrait::baseConfigurationDefaults protected function Returns generic default configuration for block plugins.
BlockPluginTrait::blockAccess protected function Indicates whether the block should be shown. 3
BlockPluginTrait::blockForm public function 4
BlockPluginTrait::blockSubmit public function 1
BlockPluginTrait::blockValidate public function 1
BlockPluginTrait::buildConfigurationForm public function Creates a generic configuration form for all block types. Individual block plugins can add elements to this form by overriding BlockBase::blockForm(). Most block plugins should not override this method unless they need to alter the generic form elements. Aliased as: traitBuildConfigurationForm
BlockPluginTrait::calculateDependencies public function
BlockPluginTrait::defaultConfiguration public function 1
BlockPluginTrait::getConfiguration public function
BlockPluginTrait::getMachineNameSuggestion public function
BlockPluginTrait::getPreviewFallbackString public function
BlockPluginTrait::label public function
BlockPluginTrait::setConfiguration public function
BlockPluginTrait::setConfigurationValue public function
BlockPluginTrait::setInPreview public function
BlockPluginTrait::setTransliteration public function Sets the transliteration service.
BlockPluginTrait::submitConfigurationForm public function Most block plugins should not override this method. To add submission handling for a specific block type, override BlockBase::blockSubmit().
BlockPluginTrait::transliteration protected function Wraps the transliteration service.
BlockPluginTrait::validateConfigurationForm public function Most block plugins should not override this method. To add validation for a specific block type, override BlockBase::blockValidate(). 1
ContextAwarePluginAssignmentTrait::addContextAssignmentElement protected function Builds a form element for assigning a context to a given slot.
ContextAwarePluginAssignmentTrait::contextHandler protected function Wraps the context handler.
ContextAwarePluginTrait::$context protected property The data objects representing the context of this plugin.
ContextAwarePluginTrait::getCacheContexts public function 1
ContextAwarePluginTrait::getCacheMaxAge public function 4
ContextAwarePluginTrait::getCacheTags public function
ContextAwarePluginTrait::getContext public function
ContextAwarePluginTrait::getContextDefinition public function
ContextAwarePluginTrait::getContextDefinitions public function
ContextAwarePluginTrait::getContextMapping public function
ContextAwarePluginTrait::getContexts public function
ContextAwarePluginTrait::getContextValue public function
ContextAwarePluginTrait::getContextValues public function
ContextAwarePluginTrait::getPluginDefinition abstract public function
ContextAwarePluginTrait::setContext public function
ContextAwarePluginTrait::setContextMapping public function
ContextAwarePluginTrait::setContextValue public function
ContextAwarePluginTrait::validateContexts public function
DependencySerializationTrait::$_entityStorages protected property
DependencySerializationTrait::$_serviceIds protected property
DependencySerializationTrait::__sleep public function 2
DependencySerializationTrait::__wakeup public function 2
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::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function
PluginBase::getDerivativeId public function
PluginBase::getPluginId public function
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginWithFormsTrait::getFormClass public function Implements \Drupal\Core\Plugin\PluginWithFormsInterface::getFormClass().
PluginWithFormsTrait::hasFormClass public function Implements \Drupal\Core\Plugin\PluginWithFormsInterface::hasFormClass().
StringTranslationTrait::$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.