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view core/modules/node/src/ContextProvider/NodeRouteContext.php @ 19:fa3358dc1485 tip
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author | Chris Cannam |
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date | Wed, 28 Aug 2019 13:14:47 +0100 |
parents | 129ea1e6d783 |
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<?php namespace Drupal\node\ContextProvider; use Drupal\Core\Cache\CacheableMetadata; use Drupal\Core\Plugin\Context\Context; use Drupal\Core\Plugin\Context\ContextProviderInterface; use Drupal\Core\Plugin\Context\EntityContext; use Drupal\Core\Plugin\Context\EntityContextDefinition; use Drupal\Core\Routing\RouteMatchInterface; use Drupal\node\Entity\Node; use Drupal\Core\StringTranslation\StringTranslationTrait; /** * Sets the current node as a context on node routes. */ class NodeRouteContext implements ContextProviderInterface { use StringTranslationTrait; /** * The route match object. * * @var \Drupal\Core\Routing\RouteMatchInterface */ protected $routeMatch; /** * Constructs a new NodeRouteContext. * * @param \Drupal\Core\Routing\RouteMatchInterface $route_match * The route match object. */ public function __construct(RouteMatchInterface $route_match) { $this->routeMatch = $route_match; } /** * {@inheritdoc} */ 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 = $route_object->getOption('parameters')) && isset($route_contexts['node'])) { if ($node = $this->routeMatch->getParameter('node')) { $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; } /** * {@inheritdoc} */ public function getAvailableContexts() { $context = EntityContext::fromEntityTypeId('node', $this->t('Node from URL')); return ['node' => $context]; } }