function NodeRouteContext::getRuntimeContexts

File

core/modules/node/src/ContextProvider/NodeRouteContext.php, line 41

Class

NodeRouteContext

Sets the current node as a context on node routes.

Namespace

Code

public function getRuntimeContexts(array $unqualified_context_ids) {
  $result = [];
  $context_definition = EntityContextDefinition::create('node')->setRequired(FALSE);
  $value = NULL;
  if ($route_object = $this->routeMatch
    ->getRouteObject()) {
    $route_contexts = $route_object->getOption('parameters');
    // Check for a node revision parameter first.
    if (isset($route_contexts['node_revision']) && $revision = $this->routeMatch
      ->getParameter('node_revision')) {
      $value = $revision;
    }
    elseif (isset($route_contexts['node']) && $node = $this->routeMatch
      ->getParameter('node')) {
      $value = $node;
    }
    elseif (isset($route_contexts['node_preview']) && $node = $this->routeMatch
      ->getParameter('node_preview')) {
      $value = $node;
    }
    elseif ($this->routeMatch
      ->getRouteName() == 'node.add') {
      $node_type = $this->routeMatch
        ->getParameter('node_type');
      $value = Node::create([
        'type' => $node_type->id(),
      ]);
    }
  }
  $cacheability = new CacheableMetadata();
  $cacheability->setCacheContexts([
    'route',
  ]);
  $context = new Context($context_definition, $value);
  $context->addCacheableDependency($cacheability);
  $result['node'] = $context;
  return $result;
}