/**
* {@inheritdoc}
*/
public function settingsForm(array $form, FormStateInterface $form_state)
{
$element = parent::settingsForm($form, $form_state);
// This formatter doesn't support linking.
unset($element['image_link']);
return $element;
}
/**
* {@inheritdoc}
*/
public function viewElements(FieldItemListInterface $items)
{
$elements = parent::viewElements($items);
foreach ($elements as &$element) {
$element['#theme'] = 'image_title_caption_formatter';
}
return $elements;
}
/**
* {@inheritdoc}
*/
public function viewElements(FieldItemListInterface $items, $langcode)
{
$elements = parent::viewElements($items, $langcode);
$new_elements = [];
foreach ($elements as $delta => $element) {
$new_elements[$delta] = ['image' => $element];
}
foreach ($items as $delta => $item) {
$new_elements[$delta]['text'] = ['#markup' => $item->slide_text];
}
return $new_elements;
}
/**
* {@inheritdoc}
*/
public static function isApplicable(FieldDefinitionInterface $field_definition)
{
// This formatter only applies to multi-image fields
return parent::isApplicable($field_definition) && $field_definition->getFieldStorageDefinition()->isMultiple();
}
/**
* {@inheritdoc}
*/
public function settingsSummary()
{
$summary = parent::settingsSummary();
$link_types = array('content' => t('Linked to content'), 'media' => t('Linked to media entity'));
// Display this setting only if image is linked.
$image_link_setting = $this->getSetting('image_link');
if (isset($link_types[$image_link_setting])) {
$summary[] = $link_types[$image_link_setting];
}
return $summary;
}
