<?php declare(strict_types=1);
namespace Shopware\Core\Framework\Event;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* @package core
*/
class NestedEventDispatcher implements EventDispatcherInterface
{
/**
* @var EventDispatcherInterface
*/
private $dispatcher;
/**
* @internal
*/
public function __construct(EventDispatcherInterface $dispatcher)
{
$this->dispatcher = $dispatcher;
}
public function dispatch($event, ?string $eventName = null): object
{
if ($event instanceof NestedEvent && $events = $event->getEvents()) {
foreach ($events as $nested) {
$name = null;
if ($nested instanceof GenericEvent) {
$name = $nested->getName();
}
$this->dispatch($nested, $name);
}
}
return $this->dispatcher->dispatch($event, $eventName);
}
/**
* @param callable $listener can not use native type declaration @see https://github.com/symfony/symfony/issues/42283
*/
public function addListener(string $eventName, $listener, int $priority = 0): void
{
$this->dispatcher->addListener($eventName, $listener, $priority);
}
public function addSubscriber(EventSubscriberInterface $subscriber): void
{
$this->dispatcher->addSubscriber($subscriber);
}
/**
* @param callable $listener can not use native type hint as it is incompatible with symfony <5.3.4
*/
public function removeListener(string $eventName, $listener): void
{
$this->dispatcher->removeListener($eventName, $listener);
}
public function removeSubscriber(EventSubscriberInterface $subscriber): void
{
$this->dispatcher->removeSubscriber($subscriber);
}
public function getListeners(?string $eventName = null): array
{
return $this->dispatcher->getListeners($eventName);
}
/**
* @param callable $listener can not use native type hint as it is incompatible with symfony <5.3.4
*/
public function getListenerPriority(string $eventName, $listener): ?int
{
return $this->dispatcher->getListenerPriority($eventName, $listener);
}
public function hasListeners(?string $eventName = null): bool
{
return $this->dispatcher->hasListeners($eventName);
}
}