public function QuickNodeBlock::ajaxCallback in Quick Node Block 8

Updates the options of a select list.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

array The updated form element.

File

src/Plugin/Block/QuickNodeBlock.php, line 177

Class

QuickNodeBlock

Provides a Node Block with his display.

Namespace

Drupal\quick_node_block\Plugin\Block

Code

public function ajaxCallback(array $form, FormStateInterface $form_state) {

  // Get the currently selected node.
  $element = $form_state
    ->getTriggeringElement();
  $node_title = $element['#value'];

  // Get nid.
  preg_match("/.+\\s\\(([^\\)]+)\\)/", $node_title, $matches);
  $nid = $matches[1];

  // Get bundle.
  $storage = $this->entityTypeManager
    ->getStorage('node');
  $node = $storage
    ->load($nid);
  $content_type = $node
    ->getType();

  // Get view mode.
  $view_mode = $this->entityDisplay
    ->getViewModeOptionsByBundle('node', $content_type);
  $form['settings']['quick_display']['#options'] = $view_mode;
  return $form['settings']['quick_display'];
}