--- /dev/null
+<?php
+
+namespace Drupal\slick\Plugin\Field\FieldFormatter;
+
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\FieldDefinitionInterface;
+use Drupal\Component\Utility\Xss;
+use Drupal\blazy\BlazyFormatterManager;
+use Drupal\blazy\Plugin\Field\FieldFormatter\BlazyFileFormatterBase;
+use Drupal\slick\SlickFormatterInterface;
+use Drupal\slick\SlickManagerInterface;
+use Drupal\slick\SlickDefault;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Base class for slick image and file ER formatters.
+ */
+abstract class SlickFileFormatterBase extends BlazyFileFormatterBase {
+
+ /**
+ * Constructs a SlickImageFormatter instance.
+ */
+ public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, BlazyFormatterManager $blazy_manager, SlickFormatterInterface $formatter, SlickManagerInterface $manager) {
+ parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings, $blazy_manager);
+ $this->formatter = $formatter;
+ $this->manager = $manager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+ return new static(
+ $plugin_id,
+ $plugin_definition,
+ $configuration['field_definition'],
+ $configuration['settings'],
+ $configuration['label'],
+ $configuration['view_mode'],
+ $configuration['third_party_settings'],
+ $container->get('blazy.formatter.manager'),
+ $container->get('slick.formatter'),
+ $container->get('slick.manager')
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function defaultSettings() {
+ return SlickDefault::imageSettings();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function viewElements(FieldItemListInterface $items, $langcode) {
+ $files = $this->getEntitiesToView($items, $langcode);
+
+ // Early opt-out if the field is empty.
+ if (empty($files)) {
+ return [];
+ }
+
+ // Collects specific settings to this formatter.
+ $build = ['settings' => $this->buildSettings()];
+
+ $this->formatter->buildSettings($build, $items);
+
+ // Build the elements.
+ $this->buildElements($build, $files);
+
+ // Supports Blazy multi-breakpoint images if provided.
+ $this->formatter->isBlazy($build['settings'], $build['items'][0]);
+
+ return $this->manager()->build($build);
+ }
+
+ /**
+ * Build the slick carousel elements.
+ */
+ public function buildElements(array &$build, $files) {
+ $settings = &$build['settings'];
+ $item_id = $settings['item_id'];
+ $tn_caption = empty($settings['thumbnail_caption']) ? NULL : $settings['thumbnail_caption'];
+ $media = method_exists($this, 'getMediaItem');
+
+ foreach ($files as $delta => $file) {
+ $settings['delta'] = $delta;
+ $settings['type'] = 'image';
+
+ /** @var Drupal\image\Plugin\Field\FieldType\ImageItem $item */
+ $item = $file->_referringItem;
+
+ $settings['file_tags'] = $file->getCacheTags();
+ $settings['uri'] = $file->getFileUri();
+
+ $element = ['item' => $item, 'settings' => $settings];
+
+ // If imported Drupal\blazy\Dejavu\BlazyVideoTrait.
+ if ($media) {
+ if (!empty($this->getImageItem($item))) {
+ $element['item'] = $this->getImageItem($item)['item'];
+ $element['settings'] = array_merge($settings, $this->getImageItem($item)['settings']);
+ }
+
+ $this->getMediaItem($element, $file);
+ }
+
+ // Image with responsive image, lazyLoad, and lightbox supports.
+ $element[$item_id] = $this->formatter->getImage($element);
+
+ if (!empty($settings['caption'])) {
+ foreach ($settings['caption'] as $caption) {
+ $element['caption'][$caption] = empty($element['item']->{$caption}) ? [] : ['#markup' => Xss::filterAdmin($element['item']->{$caption})];
+ }
+ }
+
+ // Build individual slick item.
+ $build['items'][$delta] = $element;
+
+ // Build individual slick thumbnail.
+ if (!empty($settings['nav'])) {
+ $thumb = ['settings' => $settings];
+
+ // Thumbnail usages: asNavFor pagers, dot, arrows, photobox thumbnails.
+ $thumb[$item_id] = empty($settings['thumbnail_style']) ? [] : $this->formatter->getThumbnail($settings);
+ $thumb['caption'] = empty($element['item']->{$tn_caption}) ? [] : ['#markup' => Xss::filterAdmin($element['item']->{$tn_caption})];
+
+ $build['thumb']['items'][$delta] = $thumb;
+ unset($thumb);
+ }
+
+ unset($element);
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getScopedFormElements() {
+ return [
+ 'namespace' => 'slick',
+ 'nav' => TRUE,
+ 'thumb_captions' => ['title' => $this->t('Title'), 'alt' => $this->t('Alt')],
+ 'thumb_positions' => TRUE,
+ ] + parent::getScopedFormElements();
+ }
+
+}