Chris@14: <?php
Chris@14: 
Chris@14: namespace Drupal\layout_builder\Controller;
Chris@14: 
Chris@14: use Drupal\Core\Block\BlockManagerInterface;
Chris@14: use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
Chris@14: use Drupal\Core\Url;
Chris@14: use Drupal\layout_builder\Context\LayoutBuilderContextTrait;
Chris@14: use Drupal\layout_builder\SectionStorageInterface;
Chris@14: use Symfony\Component\DependencyInjection\ContainerInterface;
Chris@14: 
Chris@14: /**
Chris@14:  * Defines a controller to choose a new block.
Chris@14:  *
Chris@14:  * @internal
Chris@14:  */
Chris@14: class ChooseBlockController implements ContainerInjectionInterface {
Chris@14: 
Chris@14:   use AjaxHelperTrait;
Chris@14:   use LayoutBuilderContextTrait;
Chris@14: 
Chris@14:   /**
Chris@14:    * The block manager.
Chris@14:    *
Chris@14:    * @var \Drupal\Core\Block\BlockManagerInterface
Chris@14:    */
Chris@14:   protected $blockManager;
Chris@14: 
Chris@14:   /**
Chris@14:    * ChooseBlockController constructor.
Chris@14:    *
Chris@14:    * @param \Drupal\Core\Block\BlockManagerInterface $block_manager
Chris@14:    *   The block manager.
Chris@14:    */
Chris@14:   public function __construct(BlockManagerInterface $block_manager) {
Chris@14:     $this->blockManager = $block_manager;
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@14:       $container->get('plugin.manager.block')
Chris@14:     );
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * Provides the UI for choosing a new block.
Chris@14:    *
Chris@14:    * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
Chris@14:    *   The section storage.
Chris@14:    * @param int $delta
Chris@14:    *   The delta of the section to splice.
Chris@14:    * @param string $region
Chris@14:    *   The region the block is going in.
Chris@14:    *
Chris@14:    * @return array
Chris@14:    *   A render array.
Chris@14:    */
Chris@14:   public function build(SectionStorageInterface $section_storage, $delta, $region) {
Chris@14:     $build['#type'] = 'container';
Chris@14:     $build['#attributes']['class'][] = 'block-categories';
Chris@14: 
Chris@14:     $definitions = $this->blockManager->getDefinitionsForContexts($this->getAvailableContexts($section_storage));
Chris@14:     foreach ($this->blockManager->getGroupedDefinitions($definitions) as $category => $blocks) {
Chris@14:       $build[$category]['#type'] = 'details';
Chris@14:       $build[$category]['#open'] = TRUE;
Chris@14:       $build[$category]['#title'] = $category;
Chris@14:       $build[$category]['links'] = [
Chris@14:         '#theme' => 'links',
Chris@14:       ];
Chris@14:       foreach ($blocks as $block_id => $block) {
Chris@14:         $link = [
Chris@14:           'title' => $block['admin_label'],
Chris@14:           'url' => Url::fromRoute('layout_builder.add_block',
Chris@14:             [
Chris@14:               'section_storage_type' => $section_storage->getStorageType(),
Chris@14:               'section_storage' => $section_storage->getStorageId(),
Chris@14:               'delta' => $delta,
Chris@14:               'region' => $region,
Chris@14:               'plugin_id' => $block_id,
Chris@14:             ]
Chris@14:           ),
Chris@14:         ];
Chris@14:         if ($this->isAjax()) {
Chris@14:           $link['attributes']['class'][] = 'use-ajax';
Chris@14:           $link['attributes']['data-dialog-type'][] = 'dialog';
Chris@14:           $link['attributes']['data-dialog-renderer'][] = 'off_canvas';
Chris@14:         }
Chris@14:         $build[$category]['links']['#links'][] = $link;
Chris@14:       }
Chris@14:     }
Chris@14:     return $build;
Chris@14:   }
Chris@14: 
Chris@14: }