class AttachedRenderingBlock

A block we can use to test caching of #attached headers.

Plugin annotation

@Block(
  id = "attached_rendering_block",
  admin_label = @Translation("AttachedRenderingBlock")
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
  • class \Drupal\Component\Plugin\ContextAwarePluginBase extends \Drupal\Component\Plugin\PluginBase implements \Drupal\Component\Plugin\ContextAwarePluginInterface
    • class \Drupal\Core\Plugin\ContextAwarePluginBase extends \Drupal\Component\Plugin\ContextAwarePluginBase implements \Drupal\Core\Plugin\ContextAwarePluginInterface, \Drupal\Core\Cache\CacheableDependencyInterface uses \Drupal\Core\TypedData\TypedDataTrait, \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait
      • class \Drupal\Core\Block\BlockBase extends \Drupal\Core\Plugin\ContextAwarePluginBase implements \Drupal\Core\Block\BlockPluginInterface, \Drupal\Core\Plugin\PluginWithFormsInterface, \Drupal\Core\Render\PreviewFallbackInterface uses \Drupal\Core\Block\BlockPluginTrait, \Drupal\Core\Plugin\ContextAwarePluginAssignmentTrait
        • class \Drupal\render_attached_test\Plugin\Block\AttachedRenderingBlock extends \Drupal\Core\Block\BlockBase

Expanded class hierarchy of AttachedRenderingBlock

See also

\Drupal\system\Tests\Render\HtmlResponseAttachmentsTest

File

core/modules/system/tests/modules/render_attached_test/src/Plugin/Block/AttachedRenderingBlock.php, line 20

Namespace

class AttachedRenderingBlock extends BlockBase {
    
    /**
     * {@inheritdoc}
     */
    public function build() {
        // Grab test attachment fixtures from
        // Drupal\render_attached_test\Controller\RenderAttachedTestController.
        $controller = new RenderAttachedTestController();
        $attached = BubbleableMetadata::mergeAttachments($controller->feed(), $controller->head());
        $attached = BubbleableMetadata::mergeAttachments($attached, $controller->header());
        $attached = BubbleableMetadata::mergeAttachments($attached, $controller->teapotHeaderStatus());
        // Return some arbitrary markup so the block doesn't disappear.
        $attached['#markup'] = 'Markup from attached_rendering_block.';
        return $attached;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCacheMaxAge() {
        return Cache::PERMANENT;
    }

}

Members