public function EpubCoverImage::settingsForm in Epub 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/EpubCoverImage.php, line 67

Contains \Drupal\epub\Plugin\Field\FieldFormatter\EpubCoverImage.

Class

EpubCoverImage

Plugin implementation of the 'epub' formatter.

Namespace

Drupal\epub\Plugin\Field\FieldFormatter

Code

public function settingsForm(array $form, FormStateInterface $form_state) {
  $element['epub_width'] = array(
    '#type' => 'textfield',
    '#title' => t('Width'),
    '#default_value' => $this
      ->getSetting('width'),
    '#description' => t('The width of ebook cover image.'),
  );
  return $element;
}