Developer
<?php
namespace League\Event;
trait EmitterTrait
{
use EmitterAwareTrait;
/**
* Add a listener for an event.
*
* The first parameter should be the event name, and the second should be
* the event listener. It may implement the League\Event\ListenerInterface
* or simply be "callable".
*
* @param string $event
* @param ListenerInterface|callable $listener
* @param int $priority
*
* @return $this
*/
public function addListener($event, $listener, $priority = ListenerAcceptorInterface::P_NORMAL)
{
$this->getEmitter()->addListener($event, $listener, $priority);
return $this;
}
/**
* Add a one time listener for an event.
*
* The first parameter should be the event name, and the second should be
* the event listener. It may implement the League\Event\ListenerInterface
* or simply be "callable".
*
* @param string $event
* @param ListenerInterface|callable $listener
* @param int $priority
*
* @return $this
*/
public function addOneTimeListener($event, $listener, $priority = ListenerAcceptorInterface::P_NORMAL)
{
$this->getEmitter()->addOneTimeListener($event, $listener, $priority);
return $this;
}
/**
* Remove a specific listener for an event.
*
* The first parameter should be the event name, and the second should be
* the event listener. It may implement the League\Event\ListenerInterface
* or simply be "callable".
*
* @param string $event
* @param ListenerInterface|callable $listener
*
* @return $this
*/
public function removeListener($event, $listener)
{
$this->getEmitter()->removeListener($event, $listener);
return $this;
}
/**
* Remove all listeners for an event.
*
* The first parameter should be the event name. All event listeners will
* be removed.
*
* @param string $event
*
* @return $this
*/
public function removeAllListeners($event)
{
$this->getEmitter()->removeAllListeners($event);
return $this;
}
/**
* Add listeners from a provider.
*
* @param ListenerProviderInterface $provider
*
* @return $this
*/
public function useListenerProvider(ListenerProviderInterface $provider)
{
$this->getEmitter()->useListenerProvider($provider);
return $this;
}
/**
* Emit an event.
*
* @param string|EventInterface $event
*
* @return EventInterface
*/
public function emit($event)
{
$emitter = $this->getEmitter();
$arguments = [$event] + func_get_args();
return call_user_func_array([$emitter, 'emit'], $arguments);
}
}
Developer
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