function NavigationLinkBlock::blockForm

Overrides BlockPluginTrait::blockForm

File

core/modules/navigation/src/Plugin/Block/NavigationLinkBlock.php, line 40

Class

NavigationLinkBlock

Defines a link navigation block.

Namespace

Code

public function blockForm($form, FormStateInterface $form_state) : array {
  $config = $this->configuration;
  $display_uri = NULL;
  if (!empty($config['uri'])) {
    try {
      // The current field value could have been entered by a different user.
      // However, if it is inaccessible to the current user, do not display it
      // to them.
      $url = Url::fromUri($config['uri']);
      if (\Drupal::currentUser()->hasPermission('link to any page') || $url->access()) {
        $display_uri = static::getUriAsDisplayableString($config['uri']);
      }
    } catch (\InvalidArgumentException) {
      // If $item->uri is invalid, show value as is, so the user can see what
      // to edit.
      $display_uri = $config['uri'];
    }
  }
  // @todo Logic related to the uri component has been borrowed from
  //   Drupal\link\Plugin\Field\FieldWidget\LinkWidget.
  //   Will be fixed in https://www.drupal.org/project/drupal/issues/3450518.
  $form['uri'] = [
    '#type' => 'entity_autocomplete',
    '#title' => $this->t('URL'),
    '#default_value' => $display_uri,
    '#element_validate' => [
      [
        static::class,
        'validateUriElement',
      ],
    ],
    '#attributes' => [
      'data-autocomplete-first-character-denylist' => '/#?',
    ],
    // @todo The user should be able to select an entity type. Will be fixed
    //   in https://www.drupal.org/node/2423093.
'#target_type' => 'node',
    '#maxlength' => 2048,
    '#required' => TRUE,
    '#process_default_value' => FALSE,
  ];
  $form['title'] = [
    '#type' => 'textfield',
    '#title' => $this->t('Link text'),
    '#default_value' => $config['title'],
    '#required' => TRUE,
    '#maxlength' => 255,
  ];
  $form['icon_class'] = [
    '#type' => 'textfield',
    '#title' => $this->t('Icon CSS class'),
    '#default_value' => $config['icon_class'],
    '#element_validate' => [
      [
        static::class,
        'validateIconClassElement',
      ],
    ],
    '#required' => TRUE,
    '#maxlength' => 64,
  ];
  return $form;
}