OpenerResolver.php

<?php

namespace Drupal\media_library;


/**
 * Defines a class to resolve media library openers.
 *
 * This is intended to be a very thin interface-verifying wrapper around
 * services which implement \Drupal\media_library\MediaLibraryOpenerInterface.
 * It is not an API and should not be extended or used by code that does not
 * interact with the Media Library module.
 *
 * @internal
 *   This service is an internal part of the modal media library dialog and
 *   does not provide any extension points or public API.
 */
class OpenerResolver implements OpenerResolverInterface {
    
    /**
     * @var \Drupal\media_library\MediaLibraryOpenerInterface[]
     */
    protected array $openers = [];
    
    /**
     * Registers an opener.
     *
     * @param \Drupal\media_library\MediaLibraryOpenerInterface $opener
     *   The opener.
     * @param string $id
     *   The service ID.
     */
    public function addOpener(MediaLibraryOpenerInterface $opener, string $id) : void {
        $this->openers[$id] = $opener;
    }
    
    /**
     * {@inheritdoc}
     */
    public function get(MediaLibraryState $state) {
        $service_id = $state->getOpenerId();
        $service = $this->openers[$service_id] ?? NULL;
        if ($service instanceof MediaLibraryOpenerInterface) {
            return $service;
        }
        throw new \RuntimeException("{$service_id} must be an instance of " . MediaLibraryOpenerInterface::class);
    }

}