elevenlabs_field-1.0.0-beta7/src/Plugin/Field/FieldFormatter/ElevenLabsAudioFormatter.php

<?php

namespace Drupal\elevenlabs_field\Plugin\Field\FieldFormatter;

use Drupal\Core\Cache\Cache;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\file\Plugin\Field\FieldFormatter\FileMediaFormatterBase;

/**
 * Plugin implementation of the 'file_audio' formatter.
 *
 * @FieldFormatter(
 *   id = "elevenlabs_audio",
 *   label = @Translation("Audio"),
 *   description = @Translation("Display the file using an HTML5 audio tag."),
 *   field_types = {
 *     "elevenlabs"
 *   }
 * )
 */
class ElevenLabsAudioFormatter extends FileMediaFormatterBase {

  /**
   * {@inheritdoc}
   */
  public static function getMediaType() {
    return 'audio';
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = [];

    $source_files = $this->getSourceFiles($items, $langcode);

    if (empty($source_files)) {
      return $elements;
    }

    $attributes = $this->prepareAttributes();
    foreach ($source_files as $delta => $files) {
      $elements[$delta] = [
        '#theme' => 'file_audio',
        '#attributes' => $attributes,
        '#files' => $files,
        '#cache' => ['tags' => []],
      ];

      $cache_tags = [];
      foreach ($files as $file) {
        $cache_tags = Cache::mergeTags($cache_tags, $file['file']->getCacheTags());
      }
      $elements[$delta]['#cache']['tags'] = $cache_tags;
    }

    return $elements;
  }

}