Issue #2946333 by tedbow, J-Lee, heddn, johnwebdev, nginex, hswong3i, cgoffin,...

Issue #2946333 by tedbow, J-Lee, heddn, johnwebdev, nginex, hswong3i, cgoffin, maacl, tim.plunkett, ravi.shankar, yogeshmpawar, p-neyens, bendeguz.csirmaz, JordiK, edurenye, aleevas, godotislate, vflirt, NWOM, sahil.goyal, ranjith_kumar_k_u, plach, Anybody, jhedstrom, dinarcon, MauHG: Allow synced Layout override Translations: translating labels and inline blocks

core/modules/layout_builder/src/Access/LayoutBuilderLockAccessCheck.php

+<?php
+
+namespace Drupal\layout_builder\Access;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Routing\Access\AccessInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\layout_builder\LayoutTempstoreRepositoryInterface;
+use Drupal\layout_builder\SectionStorageInterface;
+
+/**
+ * Checks access based on whether the layout is locked.
+ *
+ * @ingroup layout_builder_access
+ *
+ * @internal
+ *   Tagged services are internal.
+ */
+class LayoutBuilderLockAccessCheck implements AccessInterface {
+
+  /**
+   * The layout tempstore repository.
+   *
+   * @var \Drupal\layout_builder\LayoutTempstoreRepositoryInterface
+   */
+  protected $layoutTempstoreRepository;
+
+  /**
+   * Constructs a LayoutBuilderLockAccessCheck.
+   *
+   * @param \Drupal\layout_builder\LayoutTempstoreRepositoryInterface $layout_tempstore_repository
+   *   The layout tempstore repository.
+   */
+  public function __construct(LayoutTempstoreRepositoryInterface $layout_tempstore_repository) {
+    $this->layoutTempstoreRepository = $layout_tempstore_repository;
+  }
+
+  /**
+   * Checks for a lock on the layout.
+   *
+   * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
+   *   The section storage.
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The current user.
+   *
+   * @return \Drupal\Core\Access\AccessResultInterface
+   *   The access result.
+   */
+  public function access(SectionStorageInterface $section_storage, AccountInterface $account) {
+    $lock = $this->layoutTempstoreRepository->getLock($section_storage);
+    return AccessResult::allowedIf(!$lock || $account->id() === $lock->getOwnerId())->setCacheMaxAge(0);
+  }
+
+}