/**
* Build the render array for a single panelized entity.
*
* @param \Drupal\Core\Entity\EntityInterface $entity
* @param \Drupal\panels\Plugin\DisplayVariant\PanelsDisplayVariant $panels_display
* @param string $view_mode
* @param string $langcode
*
* @return array
*/
protected function buildPanelized(EntityInterface $entity, PanelsDisplayVariant $panels_display, $view_mode, $langcode)
{
$contexts = $panels_display->getContexts();
$entity_context = new Context(new ContextDefinition('entity:' . $this->entityTypeId, NULL, TRUE), $entity);
$contexts['@panelizer.entity_context:' . $this->entityTypeId] = $entity_context;
$panels_display->setContexts($contexts);
$build = $panels_display->build();
// @todo: I'm sure more is necessary to get the cache contexts right...
CacheableMetadata::createFromObject($entity)->applyTo($build);
$this->getPanelizerPlugin()->alterBuild($build, $entity, $panels_display, $view_mode);
return $build;
}