Chris@14: <?php
Chris@14: 
Chris@14: namespace Drupal\layout_builder\Controller;
Chris@14: 
Chris@14: use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
Chris@14: use Drupal\layout_builder\LayoutTempstoreRepositoryInterface;
Chris@14: use Drupal\layout_builder\SectionStorageInterface;
Chris@14: use Symfony\Component\DependencyInjection\ContainerInterface;
Chris@14: 
Chris@14: /**
Chris@14:  * Defines a controller to move a block.
Chris@14:  *
Chris@14:  * @internal
Chris@18:  *   Controller classes are internal.
Chris@14:  */
Chris@14: class MoveBlockController implements ContainerInjectionInterface {
Chris@14: 
Chris@14:   use LayoutRebuildTrait;
Chris@14: 
Chris@14:   /**
Chris@14:    * The layout tempstore repository.
Chris@14:    *
Chris@14:    * @var \Drupal\layout_builder\LayoutTempstoreRepositoryInterface
Chris@14:    */
Chris@14:   protected $layoutTempstoreRepository;
Chris@14: 
Chris@14:   /**
Chris@14:    * LayoutController constructor.
Chris@14:    *
Chris@14:    * @param \Drupal\layout_builder\LayoutTempstoreRepositoryInterface $layout_tempstore_repository
Chris@14:    *   The layout tempstore repository.
Chris@14:    */
Chris@18:   public function __construct(LayoutTempstoreRepositoryInterface $layout_tempstore_repository) {
Chris@14:     $this->layoutTempstoreRepository = $layout_tempstore_repository;
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * {@inheritdoc}
Chris@14:    */
Chris@14:   public static function create(ContainerInterface $container) {
Chris@14:     return new static(
Chris@18:       $container->get('layout_builder.tempstore_repository')
Chris@14:     );
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * Moves a block to another region.
Chris@14:    *
Chris@14:    * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
Chris@14:    *   The section storage.
Chris@14:    * @param int $delta_from
Chris@14:    *   The delta of the original section.
Chris@14:    * @param int $delta_to
Chris@14:    *   The delta of the destination section.
Chris@14:    * @param string $region_to
Chris@14:    *   The new region for this block.
Chris@14:    * @param string $block_uuid
Chris@14:    *   The UUID for this block.
Chris@14:    * @param string|null $preceding_block_uuid
Chris@14:    *   (optional) If provided, the UUID of the block to insert this block after.
Chris@14:    *
Chris@14:    * @return \Drupal\Core\Ajax\AjaxResponse
Chris@14:    *   An AJAX response.
Chris@14:    */
Chris@14:   public function build(SectionStorageInterface $section_storage, $delta_from, $delta_to, $region_to, $block_uuid, $preceding_block_uuid = NULL) {
Chris@14:     $section = $section_storage->getSection($delta_from);
Chris@14: 
Chris@14:     $component = $section->getComponent($block_uuid);
Chris@14:     $section->removeComponent($block_uuid);
Chris@14: 
Chris@14:     // If the block is moving from one section to another, update the original
Chris@14:     // section and load the new one.
Chris@14:     if ($delta_from !== $delta_to) {
Chris@14:       $section = $section_storage->getSection($delta_to);
Chris@14:     }
Chris@14: 
Chris@14:     // If a preceding block was specified, insert after that. Otherwise add the
Chris@14:     // block to the front.
Chris@14:     $component->setRegion($region_to);
Chris@14:     if (isset($preceding_block_uuid)) {
Chris@14:       $section->insertAfterComponent($preceding_block_uuid, $component);
Chris@14:     }
Chris@14:     else {
Chris@14:       $section->insertComponent(0, $component);
Chris@14:     }
Chris@14: 
Chris@14:     $this->layoutTempstoreRepository->set($section_storage);
Chris@14:     return $this->rebuildLayout($section_storage);
Chris@14:   }
Chris@14: 
Chris@14: }