69 lines
1.3 KiB
PHP
69 lines
1.3 KiB
PHP
<?php
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namespace Maatwebsite\Excel;
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trait HasEventBus
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{
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/**
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* @var array
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*/
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protected static $globalEvents = [];
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/**
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* @var array
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*/
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protected $events = [];
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/**
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* Register local event listeners.
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*
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* @param array $listeners
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*/
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public function registerListeners(array $listeners)
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{
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foreach ($listeners as $event => $listener) {
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$this->events[$event][] = $listener;
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}
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}
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public function clearListeners()
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{
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$this->events = [];
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}
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/**
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* Register a global event listener.
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*
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* @param string $event
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* @param callable $listener
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*/
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public static function listen(string $event, callable $listener)
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{
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static::$globalEvents[$event][] = $listener;
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}
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/**
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* @param object $event
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*/
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public function raise($event)
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{
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foreach ($this->listeners($event) as $listener) {
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$listener($event);
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}
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}
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/**
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* @param object $event
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* @return callable[]
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*/
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public function listeners($event): array
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{
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$name = \get_class($event);
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$localListeners = $this->events[$name] ?? [];
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$globalListeners = static::$globalEvents[$name] ?? [];
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return array_merge($globalListeners, $localListeners);
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}
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}
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