public function QuickNodeBlock::blockForm in Quick Node Block 8

Overrides BlockPluginTrait::blockForm

File

src/Plugin/Block/QuickNodeBlock.php, line 89

Class

QuickNodeBlock

Provides a Node Block with his display.

Namespace

Drupal\quick_node_block\Plugin\Block

Code

public function blockForm($form, FormStateInterface $form_state) {
  $form = parent::blockForm($form, $form_state);
  $config = $this
    ->getConfiguration();
  $form['quick_node'] = [
    '#type' => 'textfield',
    '#title' => $this
      ->t('Node'),
    '#description' => $this
      ->t('What node do you want to show? You can write a node number or node title.'),
    '#required' => TRUE,
    '#autocomplete_route_name' => 'quick_node_block.autocomplete',
    '#default_value' => $config['quick_node'] ?? '',
    '#ajax' => [
      'wrapper' => 'quick-ajax-wrapper',
      'callback' => [
        $this,
        'ajaxCallback',
      ],
      'disable-refocus' => TRUE,
    ],
  ];

  // Get node from the url.
  $nid_add = $this->routeMatch
    ->getParameter('node');

  // Check if there is a node selected.
  $element = $form_state
    ->getTriggeringElement();
  if (!empty($element['#value'])) {
    $node_title = $element['#value'];
  }
  elseif (!empty($nid_add)) {

    // Default value when creating the block from the node.
    $node = $this->entityTypeManager
      ->getStorage('node')
      ->load($nid_add);
    $node_title = $node
      ->getTitle() . ' (' . $nid_add . ')';
    $form['quick_node']['#default_value'] = $node_title;
    $form['quick_node']['#attributes']['disabled'] = TRUE;
  }
  else {
    $node_title = $config['quick_node'] ?? '';
  }

  // Get nid.
  preg_match("/.+\\s\\(([^\\)]+)\\)/", $node_title, $matches);
  $nid = $matches[1] ?? '';
  if (empty($nid)) {
    $quick_display = $this
      ->getQuickDisplays();
  }
  else {

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

    // Get view mode.
    $quick_display = $this->entityDisplay
      ->getViewModeOptionsByBundle('node', $content_type);
  }
  $form['quick_display'] = [
    '#type' => 'select',
    '#title' => $this
      ->t('Display'),
    '#description' => $this
      ->t('How do you want the node to be displayed?. You must first choose a node.'),
    '#required' => TRUE,
    '#options' => $quick_display,
    '#default_value' => $config['quick_display'] ?? '',
    '#prefix' => '<div id="quick-ajax-wrapper">',
    '#suffix' => '</div>',
    // Hide field if quick_node is empty.
    '#states' => [
      'visible' => [
        ':input[name$="[quick_node]"]' => [
          [
            'empty' => FALSE,
          ],
        ],
      ],
    ],
  ];
  return $form;
}