MediaRouteProvider.php

<?php

namespace Drupal\media\Routing;

use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Entity\EntityFieldManagerInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Entity\Routing\AdminHtmlRouteProvider;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides HTML routes for media pages.
 */
class MediaRouteProvider extends AdminHtmlRouteProvider {
    
    /**
     * The media settings config.
     *
     * @var \Drupal\Core\Config\ImmutableConfig
     */
    protected $config;
    
    /**
     * {@inheritdoc}
     */
    public function __construct(EntityTypeManagerInterface $entity_type_manager, EntityFieldManagerInterface $entity_field_manager, ConfigFactoryInterface $config_factory) {
        parent::__construct($entity_type_manager, $entity_field_manager);
        $this->config = $config_factory->get('media.settings');
    }
    
    /**
     * {@inheritdoc}
     */
    public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
        return new static($container->get('entity_type.manager'), $container->get('entity_field.manager'), $container->get('config.factory'));
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getCanonicalRoute(EntityTypeInterface $entity_type) {
        if ($this->config
            ->get('standalone_url')) {
            return parent::getCanonicalRoute($entity_type);
        }
        else {
            return parent::getEditFormRoute($entity_type);
        }
    }

}