87 lines
2.0 KiB
PHP
87 lines
2.0 KiB
PHP
<?php
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namespace Engelsystem\Events;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Str;
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class EventDispatcher
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{
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/** @var callable[] */
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protected $listeners;
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/**
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* @param array|string $events
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* @param callable|string $listener
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*/
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public function listen($events, $listener): void
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{
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foreach ((array)$events as $event) {
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$this->listeners[$event][] = $listener;
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}
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}
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/**
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* @param string $event
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*/
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public function forget($event): void
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{
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unset($this->listeners[$event]);
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}
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/**
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* @param string|object $event
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* @param array|mixed $payload
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* @param bool $halt
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*
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* @return array|mixed|null
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*/
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public function fire($event, $payload = [], $halt = false)
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{
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return $this->dispatch($event, $payload, $halt);
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}
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/**
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* @param string|object $event
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* @param array|mixed $payload
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* @param bool $halt Stop on first non-null return
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*
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* @return array|null|mixed
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*/
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public function dispatch($event, $payload = [], $halt = false)
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{
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if (is_object($event)) {
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$payload = $event;
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$event = get_class($event);
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}
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$listeners = [];
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if (isset($this->listeners[$event])) {
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$listeners = $this->listeners[$event];
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}
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$responses = [];
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foreach ($listeners as $listener) {
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if (!is_callable($listener) && is_string($listener) && !Str::contains($listener, '@')) {
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$listener = $listener . '@handle';
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}
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$response = app()->call($listener, ['event' => $event] + Arr::wrap($payload));
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// Return the events response
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if ($halt && !is_null($response)) {
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return $response;
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}
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// Stop further event propagation
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if ($response === false) {
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break;
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}
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$responses[] = $response;
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}
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return $halt ? null : $responses;
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}
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}
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