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<?php
namespace Drupal\block;
use Drupal\Core\Cache\CacheableMetadata;
use Drupal\Core\Entity\EntityManagerInterface;
use Drupal\Core\Plugin\Context\ContextHandlerInterface;
use Drupal\Core\Theme\ThemeManagerInterface;
/**
* Provides a repository for Block config entities.
*/
class BlockRepository implements BlockRepositoryInterface {
/**
* The block storage.
*
* @var \Drupal\Core\Entity\EntityStorageInterface
*/
protected $blockStorage;
/**
* The theme manager.
*
* @var \Drupal\Core\Theme\ThemeManagerInterface
*/
protected $themeManager;
/**
* Constructs a new BlockRepository.
*
* @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
* The entity manager.
* @param \Drupal\Core\Theme\ThemeManagerInterface $theme_manager
* The theme manager.
* @param \Drupal\Core\Plugin\Context\ContextHandlerInterface $context_handler
* The plugin context handler.
*/
public function __construct(EntityManagerInterface $entity_manager, ThemeManagerInterface $theme_manager, ContextHandlerInterface $context_handler) {
$this->blockStorage = $entity_manager->getStorage('block');
$this->themeManager = $theme_manager;
$this->contextHandler = $context_handler;
}
/**
* {@inheritdoc}
*/
public function getVisibleBlocksPerRegion(array &$cacheable_metadata = []) {
$active_theme = $this->themeManager->getActiveTheme();
// Build an array of the region names in the right order.
$empty = array_fill_keys($active_theme->getRegions(), []);
$full = [];
foreach ($this->blockStorage->loadByProperties(['theme' => $active_theme->getName()]) as $block_id => $block) {
/** @var \Drupal\block\BlockInterface $block */
$access = $block->access('view', NULL, TRUE);
$region = $block->getRegion();
if (!isset($cacheable_metadata[$region])) {
$cacheable_metadata[$region] = CacheableMetadata::createFromObject($access);
}
else {
$cacheable_metadata[$region] = $cacheable_metadata[$region]->merge(CacheableMetadata::createFromObject($access));
}
// Set the contexts on the block before checking access.
if ($access->isAllowed()) {
$full[$region][$block_id] = $block;
}
}
// Merge it with the actual values to maintain the region ordering.
$assignments = array_intersect_key(array_merge($empty, $full), $empty);
foreach ($assignments as &$assignment) {
// Suppress errors because PHPUnit will indirectly modify the contents,
// triggering https://bugs.php.net/bug.php?id=50688.
@uasort($assignment, 'Drupal\block\Entity\Block::sort');
}
return $assignments;
}
}