90 lines
2.3 KiB
PHP
90 lines
2.3 KiB
PHP
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<?php
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/*
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* This file is part of the PHPFlasher package.
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* (c) Younes KHOUBZA <younes.khoubza@gmail.com>
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*/
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namespace Flasher\Prime\EventDispatcher;
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use Flasher\Prime\EventDispatcher\Event\StoppableEventInterface;
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use Flasher\Prime\EventDispatcher\EventListener\AddToStorageListener;
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use Flasher\Prime\EventDispatcher\EventListener\EventSubscriberInterface;
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use Flasher\Prime\EventDispatcher\EventListener\RemoveListener;
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use Flasher\Prime\EventDispatcher\EventListener\StampsListener;
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final class EventDispatcher implements EventDispatcherInterface
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{
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/**
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* @var array<string, EventSubscriberInterface[]>
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*/
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private $listeners = array();
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public function __construct()
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{
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$this->addSubscriber(new RemoveListener());
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$this->addSubscriber(new StampsListener());
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$this->addSubscriber(new AddToStorageListener());
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}
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/**
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* {@inheritdoc}
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*/
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public function dispatch($event)
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{
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$listeners = $this->getListeners(\get_class($event));
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$this->callListeners($listeners, $event); // @phpstan-ignore-line
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return $event;
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}
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/**
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* {@inheritdoc}
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*/
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public function addListener($eventName, $listener)
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{
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$this->listeners[$eventName][] = $listener; // @phpstan-ignore-line
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}
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/**
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* {@inheritdoc}
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*/
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public function addSubscriber(EventSubscriberInterface $subscriber)
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{
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foreach ((array) $subscriber->getSubscribedEvents() as $eventName) {
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$this->addListener($eventName, array($subscriber, '__invoke')); // @phpstan-ignore-line
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}
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}
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/**
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* @param string $eventName
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*
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* @return array<int, EventSubscriberInterface[]>
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*/
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public function getListeners($eventName)
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{
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if (\array_key_exists($eventName, $this->listeners)) {
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return $this->listeners[$eventName]; // @phpstan-ignore-line
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}
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return array();
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}
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/**
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* @param callable[] $listeners
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* @param object $event
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*
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* @return void
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*/
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private function callListeners(array $listeners, $event)
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{
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foreach ($listeners as $listener) {
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if ($event instanceof StoppableEventInterface && $event->isPropagationStopped()) {
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break;
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}
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\call_user_func($listener, $event);
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}
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}
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}
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