public function BlockPluginTrait::buildConfigurationForm

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.

See also

\Drupal\Core\Block\BlockBase::blockForm()

File

core/lib/Drupal/Core/Block/BlockPluginTrait.php, line 161

Class

BlockPluginTrait

Provides the base implementation of a block plugin.

Namespace

Code

public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
  $definition = $this
    ->getPluginDefinition();
  $form['provider'] = [
    '#type' => 'value',
    '#value' => $definition['provider'],
  ];
  $form['admin_label'] = [
    '#type' => 'item',
    '#title' => $this
      ->t('Block description'),
    '#plain_text' => $definition['admin_label'],
  ];
  $form['label'] = [
    '#type' => 'textfield',
    '#title' => $this
      ->t('Title'),
    '#maxlength' => 255,
    '#default_value' => $this
      ->label(),
    '#required' => TRUE,
  ];
  $form['label_display'] = [
    '#type' => 'checkbox',
    '#title' => $this
      ->t('Display title'),
    '#default_value' => $this->configuration['label_display'] === BlockPluginInterface::BLOCK_LABEL_VISIBLE,
    '#return_value' => BlockPluginInterface::BLOCK_LABEL_VISIBLE,
  ];

  // Add plugin-specific settings for this block type.
  $form += $this
    ->blockForm($form, $form_state);
  return $form;
}