Issue #3189181 by akoe: Language path prefix breaks method...

      - { name: event_subscriber }

  paragraph_blocks.entity_manager:

    class: Drupal\paragraph_blocks\ParagraphBlocksEntityManager

    arguments: ['@path_alias.manager', '@entity_type.manager', '@request_stack', '@config.factory']

    arguments: ['@request_stack']

  paragraph_blocks.labeller:

    class: Drupal\paragraph_blocks\ParagraphBlocksLabeller

    arguments: ['@paragraph_blocks.entity_manager', '@entity_field.manager']

namespace Drupal\paragraph_blocks;

use Drupal\Core\Config\ConfigFactoryInterface;

use Drupal\Core\DependencyInjection\ContainerInjectionInterface;

use Drupal\Core\Entity\EntityTypeManagerInterface;

use Drupal\path_alias\AliasManagerInterface;

use Symfony\Component\DependencyInjection\ContainerInterface;

use Symfony\Component\HttpFoundation\RequestStack;

   */

  protected $requestStack;

  /**

   * The config factory.

   *

   * @var \Drupal\Core\Config\ConfigFactoryInterface

   */

  protected $configFactory;

  /**

   * ParagraphBlocksEntityManager constructor.

   */

  public function __construct(AliasManagerInterface $alias_manager, EntityTypeManagerInterface $entity_type_manager, RequestStack $request_stack, ConfigFactoryInterface $config_factory) {

    $this->aliasManager = $alias_manager;

    $this->entityTypeManager = $entity_type_manager;

  public function __construct(RequestStack $request_stack) {

    $this->requestStack = $request_stack;

    $this->configFactory = $config_factory;

  }

  /**

   */

  public static function create(ContainerInterface $container) {

    return new static(

      $container->get('path_alias.manager'),

      $container->get('entity_type.manager'),

      $container->get('request_stack'),

      $container->get('config.factory')

      $container->get('request_stack')

    );

  }

  /**

   * Return the entity of the path.

   *

   * @param string $path

   *   (optional) The path to lookup, defaults to the current path.

   *

   * @return \Drupal\Core\Entity\EntityInterface|null

   *   The entity of the current path, or null if none.

   *

   * @todo: This implements something similar to menu_get_object() which was

   * likely removed intentionally, so is this a bad idea?

   *

   * @see entity_css_get_entity()

   */

  public function getEntity($path = NULL) {

    // Get the current path if none is specified.

    if (!$path) {

      $path = parse_url(\Drupal::requestStack()->getCurrentRequest()->getRequestUri(), PHP_URL_PATH);

    }

    $base_path = base_path();

    if (empty($path) || $path == $base_path || $path == '<front>') {

      $path = \Drupal::config('system.site')->get('page.front');

    }

    // Convert the specified path to an internal path.

    $source_path = \Drupal::service('path_alias.manager')->getPathByAlias($path);

    $source_path = preg_replace(":^$base_path:", '', $source_path);

    // Check if this is the entity path.

    // @todo: this makes assumption that are possibly not valid. For example, is

    // the entity path always "/entity_type_id/entity_id"?

    $parts = explode('/', trim($source_path, '/'));

    if (count($parts) >= 2) {

      list($entity_type_id, $entity_id) = $parts;

      $entity_type_id = str_replace('-', '_', $entity_type_id);

      // Check that the path is for an entity.

      $entity_type_manager = \Drupal::entityTypeManager();

      /** @var \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager */

      $entity_types = $entity_type_manager->getDefinitions();

      if (is_numeric($entity_id) && isset($entity_types[$entity_type_id])) {

        /** @var \Drupal\Core\Entity\EntityStorageInterface $entity_storage */

        $entity_storage = $entity_type_manager->getStorage($entity_type_id);

        if ($entity_storage) {

          // Load and return the entity.

          return $entity_storage->load($entity_id);

        }

      }

    }

    return NULL;

  }

  /**

   * Return the entity of the referer, useful when called via AJAX.

   * Return the entity from Layout Builders section storage in request.

   *

   * @return \Drupal\Core\Entity\EntityInterface|null

   *   The entity of the referer, or null if none.

   */

  public function getRefererEntity() {

    $referer = $this->requestStack->getCurrentRequest()->server->get('HTTP_REFERER');

    if ($referer) {

      $path = parse_url($referer, PHP_URL_PATH);

      if ($path) {

        return $this->getEntity($path);

      }

    /** @var \Drupal\layout_builder\Plugin\SectionStorage\OverridesSectionStorage $section_storage */

    $section_storage = $this->requestStack->getCurrentRequest()->attributes->get('section_storage');

    // If section storage is for a single entity override there will be a entity to return.

    if ('overrides' === $section_storage->getPluginId()) {

      return $section_storage->getContext('entity')->getContextData()->getEntity();

    }

    return NULL;

    return null;

  }

}