public function BlockGroup::build in Block Group 8

Throws

\Drupal\Component\Plugin\Exception\PluginNotFoundException

\Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException

Overrides BlockPluginInterface::build

File

src/Plugin/Block/BlockGroup.php, line 164

Class

BlockGroup

Provides a 'BlockGroup' block.

Namespace

Drupal\blockgroup\Plugin\Block

Code

public function build() {
  $blockGroupStorage = $this->entityTypeManager
    ->getStorage('block_group_content');
  $renderedBlocks = [];
  $derivativeId = $this
    ->getDerivativeId();

  /** @var \Drupal\blockgroup\BlockGroupContentInterface $blockGroup */
  $blockGroup = $blockGroupStorage
    ->load($derivativeId);

  /** @var \Drupal\block\BlockInterface[] $blocks */
  $blocks = $this->entityTypeManager
    ->getStorage('block')
    ->loadByProperties([
    'theme' => $this->themeManager
      ->getActiveTheme()
      ->getName(),
    'region' => $blockGroup
      ->id(),
  ]);
  uasort($blocks, 'Drupal\\block\\Entity\\Block::sort');
  foreach ($blocks as $block) {

    // Special condition for Main block.
    if ($block
      ->getPluginId() == 'system_main_block') {
      $renderedBlocks[$block
        ->id()] = $this->mainContent;
    }
    elseif ($block
      ->getPluginId() == 'page_title_block') {
      $title = $this->titleResolver
        ->getTitle($this->request, $this->routeMatch
        ->getRouteObject());
      $renderedBlocks[$block
        ->id()] = [
        '#type' => 'page_title',
        '#title' => $title,
        '#weight' => $block
          ->getWeight(),
      ];
    }
    else {

      /** @var \Drupal\Core\Access\AccessResultInterface $accessResult */
      $accessResult = $block
        ->access('view', NULL, TRUE);
      if ($accessResult
        ->isAllowed()) {

        // Inject runtime contexts.
        // @see \Drupal\block\BlockViewBuilder::buildPreRenderableBlock().
        $blockPlugin = $block
          ->getPlugin();
        if ($blockPlugin instanceof ContextAwarePluginInterface) {
          $contexts = $this->contextRepository
            ->getRuntimeContexts(array_values($blockPlugin
            ->getContextMapping()));
          $this->contextHandler
            ->applyContextMapping($blockPlugin, $contexts);
        }
        $renderedBlocks[$block
          ->id()] = $this->entityTypeManager
          ->getViewBuilder('block')
          ->view($block);
      }
      $this->renderer
        ->addCacheableDependency($renderedBlocks, $accessResult);
    }
    $this->renderer
      ->addCacheableDependency($renderedBlocks, $block);
  }
  $this->renderer
    ->addCacheableDependency($renderedBlocks, $blockGroup);
  $blockDefinition = $this->entityTypeManager
    ->getDefinition('block');
  $listCacheability = new CacheableMetadata();
  $listCacheability
    ->addCacheTags($blockDefinition
    ->getListCacheTags());
  $listCacheability
    ->addCacheContexts($blockDefinition
    ->getListCacheContexts());
  $this->renderer
    ->addCacheableDependency($renderedBlocks, $listCacheability);
  return $renderedBlocks;
}