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<?php |
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/* |
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* event-symfony-event-dispatcher (https://github.com/phpgears/event-symfony-event-dispatcher). |
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* Event bus with Symfony Event Dispatcher. |
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* |
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* @license MIT |
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* @link https://github.com/phpgears/event-symfony-event-dispatcher |
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* @author Julián Gutiérrez <[email protected]> |
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*/ |
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declare(strict_types=1); |
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namespace Gears\Event\Symfony; |
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use Gears\Event\EventHandler; |
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use Psr\Container\ContainerInterface; |
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use Symfony\Component\EventDispatcher\Event as SymfonyEvent; |
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use Symfony\Component\EventDispatcher\EventDispatcher as SymfonyEventDispatcher; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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class ContainerAwareDispatcher extends SymfonyEventDispatcher implements EventDispatcher |
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{ |
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/** |
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* @var ContainerInterface |
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*/ |
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private $container; |
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/** |
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* ContainerAwareEventDispatcher constructor. |
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* |
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* @param ContainerInterface $container |
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* @param array<string, mixed> $listenersMap |
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*/ |
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public function __construct(ContainerInterface $container, array $listenersMap = []) |
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{ |
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$this->container = $container; |
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foreach ($listenersMap as $eventName => $listeners) { |
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if (!\is_array($listeners)) { |
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$listeners = [$listeners]; |
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} |
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foreach ($listeners as $listener) { |
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$this->addListener($eventName, $listener); |
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} |
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} |
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} |
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/** |
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* Adds an event subscriber. |
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* |
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* @param EventSubscriberInterface $subscriber |
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*/ |
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public function addSubscriber(EventSubscriberInterface $subscriber): void |
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{ |
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foreach ($subscriber::getSubscribedEvents() as $eventName => $params) { |
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if (!\is_array($params)) { |
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$params = [$params]; |
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} |
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foreach ($params as $listener) { |
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if (\is_string($listener)) { |
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$this->addListener($eventName, $listener); |
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} else { |
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$this->addListener($eventName, $listener[0], $listener[1] ?? 0); |
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} |
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} |
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} |
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} |
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/** |
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* Adds an event listener that listens on the specified events. |
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* |
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* @param string $eventName |
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* @param callable|string $listener |
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* @param int $priority |
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*/ |
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public function addListener($eventName, $listener, $priority = 0): void |
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{ |
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if (!\is_string($listener)) { |
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throw new \InvalidArgumentException(\sprintf( |
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'Event handler must be a container entry, %s given', |
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\is_object($listener) ? \get_class($listener) : \gettype($listener) |
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)); |
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} |
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parent::addListener($eventName, $listener, $priority); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function dispatch($eventName, SymfonyEvent $event = null): SymfonyEvent |
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{ |
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if ($event === null) { |
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throw new \InvalidArgumentException('Dispatched event cannot be empty'); |
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} |
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if (!$event instanceof EventEnvelope) { |
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throw new \InvalidArgumentException(\sprintf( |
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'Dispatched event must implement %s, %s given', |
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EventEnvelope::class, |
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\get_class($event) |
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)); |
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} |
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$this->dispatchEvent($this->getListeners($eventName), $event); |
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return $event; |
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} |
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/** |
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* Dispatch event to registered listeners. |
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* |
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* @param string[] $listeners |
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* @param EventEnvelope $event |
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*/ |
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private function dispatchEvent(array $listeners, EventEnvelope $event): void |
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{ |
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$dispatchEvent = $event->getWrappedEvent(); |
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foreach ($listeners as $listener) { |
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/* @var EventHandler $handler */ |
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$handler = $this->container->get($listener); |
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if (!$handler instanceof EventHandler) { |
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throw new \RuntimeException(\sprintf( |
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'Event handler should implement %s, %s given', |
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EventHandler::class, |
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\is_object($handler) ? \get_class($handler) : \gettype($handler) |
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)); |
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} |
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$handler->handle($dispatchEvent); |
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} |
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} |
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} |
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phpgears /
event-symfony-event-dispatcher
