public function FlippingBookIframeFormatter::settingsForm in Flipping Book 8

Returns a form to configure settings for the formatter.

Invoked from \Drupal\field_ui\Form\EntityDisplayFormBase to allow administrators to configure the formatter. The field_ui module takes care of handling submitted form values.

Parameters

array $form: The form where the settings form is being included in.

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

Return value

array The form elements for the formatter settings.

Overrides FormatterBase::settingsForm

File

src/Plugin/Field/FieldFormatter/FlippingBookIframeFormatter.php, line 39

Class

FlippingBookIframeFormatter

Plugin implementation of the 'flipping_book_iframe_formatter' formatter.

Namespace

Drupal\flipping_book\Plugin\Field\FieldFormatter

Code

public function settingsForm(array $form, FormStateInterface $form_state) {
  $form = parent::settingsForm($form, $form_state);
  $form['width'] = [
    '#title' => $this
      ->t('Iframe width'),
    '#type' => 'textfield',
    '#default_value' => $this
      ->getSetting('width'),
    '#required' => TRUE,
  ];
  $form['height'] = [
    '#title' => $this
      ->t('Iframe height'),
    '#type' => 'textfield',
    '#default_value' => $this
      ->getSetting('height'),
    '#required' => TRUE,
  ];
  $form['class'] = [
    '#title' => $this
      ->t('Iframe CSS class'),
    '#type' => 'textfield',
    '#default_value' => $this
      ->getSetting('class'),
    '#required' => FALSE,
  ];
  return $form;
}