public function BlockFieldWidget::configurationForm in Block field 8

Ajax callback that return block configuration setting form.

File

src/Plugin/Field/FieldWidget/BlockFieldWidget.php, line 206

Class

BlockFieldWidget

Plugin implementation of the 'block_field' widget.

Namespace

Drupal\block_field\Plugin\Field\FieldWidget

Code

public function configurationForm(array $form, FormStateInterface $form_state) {
  $trigger_element = $form_state
    ->getTriggeringElement();
  $array_parents = $trigger_element['#array_parents'];
  $array_parents[count($array_parents) - 1] = 'settings';
  $settings_element = NestedArray::getValue($form, $array_parents);

  // Set the label #value to the default block instance's label.
  $plugin_id = $trigger_element['#value'];

  /** @var \Drupal\Core\Block\BlockPluginInterface $block_instance */
  if ($block_instance = $this->blockManager
    ->createInstance($plugin_id)) {
    $settings_element['label']['#value'] = $block_instance
      ->label();
  }
  return $settings_element;
}