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<?php
namespace Yiisoft\EventDispatcher\Provider;
use Psr\EventDispatcher\ListenerProviderInterface;
/**
* Provider is a listener provider that registers event listeners for interfaces used in callable type-hints
* and gives out a list of handlers by event interface provided for further use with Dispatcher.
*
* ```php
* $listeners = (new ListenerCollection())->add(function (AfterDocumentProcessed $event) {
* $document = $event->getDocument();
* // do something with document
* });
* $provider = new Yiisoft\EventDispatcher\Provider\Provider($listeners);
* ```
*/
final class Provider implements ListenerProviderInterface
{
private ListenerCollection $listeners;
public function __construct(ListenerCollection $listeners)
$this->listeners = $listeners;
}
public function getListenersForEvent(object $event): iterable
yield from $this->listeners->getForEvents(get_class($event));
yield from $this->listeners->getForEvents(...array_values(class_parents($event)));
yield from $this->listeners->getForEvents(...array_values(class_implements($event)));
yiisoft /
event-dispatcher
