<?php

[0] Fix | Delete

[1] Fix | Delete

/*

[2] Fix | Delete

* This file is part of the Symfony package.

[3] Fix | Delete

*

[4] Fix | Delete

* (c) Fabien Potencier <fabien@symfony.com>

[5] Fix | Delete

*

[6] Fix | Delete

* For the full copyright and license information, please view the LICENSE

[7] Fix | Delete

* file that was distributed with this source code.

[8] Fix | Delete

*/

[9] Fix | Delete

[10] Fix | Delete

namespace Symfony\Component\EventDispatcher;

[11] Fix | Delete

[12] Fix | Delete

/**

[13] Fix | Delete

* The EventDispatcherInterface is the central point of Symfony's event listener system.

[14] Fix | Delete

* Listeners are registered on the manager and events are dispatched through the

[15] Fix | Delete

* manager.

[16] Fix | Delete

*

[17] Fix | Delete

* @author Bernhard Schussek <bschussek@gmail.com>

[18] Fix | Delete

*/

[19] Fix | Delete

interface EventDispatcherInterface

[20] Fix | Delete

{

[21] Fix | Delete

/**

[22] Fix | Delete

* Dispatches an event to all registered listeners.

[23] Fix | Delete

*

[24] Fix | Delete

* @param string $eventName The name of the event to dispatch. The name of

[25] Fix | Delete

* the event is the name of the method that is

[26] Fix | Delete

* invoked on listeners.

[27] Fix | Delete

* @param Event $event The event to pass to the event handlers/listeners

[28] Fix | Delete

* If not supplied, an empty Event instance is created

[29] Fix | Delete

*

[30] Fix | Delete

* @return Event

[31] Fix | Delete

*/

[32] Fix | Delete

public function dispatch($eventName, Event $event = null);

[33] Fix | Delete

[34] Fix | Delete

/**

[35] Fix | Delete

* Adds an event listener that listens on the specified events.

[36] Fix | Delete

*

[37] Fix | Delete

* @param string $eventName The event to listen on

[38] Fix | Delete

* @param callable $listener The listener

[39] Fix | Delete

* @param int $priority The higher this value, the earlier an event

[40] Fix | Delete

* listener will be triggered in the chain (defaults to 0)

[41] Fix | Delete

*/

[42] Fix | Delete

public function addListener($eventName, $listener, $priority = 0);

[43] Fix | Delete

[44] Fix | Delete

/**

[45] Fix | Delete

* Adds an event subscriber.

[46] Fix | Delete

*

[47] Fix | Delete

* The subscriber is asked for all the events he is

[48] Fix | Delete

* interested in and added as a listener for these events.

[49] Fix | Delete

*/

[50] Fix | Delete

public function addSubscriber(EventSubscriberInterface $subscriber);

[51] Fix | Delete

[52] Fix | Delete

/**

[53] Fix | Delete

* Removes an event listener from the specified events.

[54] Fix | Delete

*

[55] Fix | Delete

* @param string $eventName The event to remove a listener from

[56] Fix | Delete

* @param callable $listener The listener to remove

[57] Fix | Delete

*/

[58] Fix | Delete

public function removeListener($eventName, $listener);

[59] Fix | Delete

[60] Fix | Delete

public function removeSubscriber(EventSubscriberInterface $subscriber);

[61] Fix | Delete

[62] Fix | Delete

/**

[63] Fix | Delete

* Gets the listeners of a specific event or all listeners sorted by descending priority.

[64] Fix | Delete

*

[65] Fix | Delete

* @param string $eventName The name of the event

[66] Fix | Delete

*

[67] Fix | Delete

* @return array The event listeners for the specified event, or all event listeners by event name

[68] Fix | Delete

*/

[69] Fix | Delete

public function getListeners($eventName = null);

[70] Fix | Delete

[71] Fix | Delete

/**

[72] Fix | Delete

* Checks whether an event has any registered listeners.

[73] Fix | Delete

*

[74] Fix | Delete

* @param string $eventName The name of the event

[75] Fix | Delete

*

[76] Fix | Delete

* @return bool true if the specified event has any listeners, false otherwise

[77] Fix | Delete

*/

[78] Fix | Delete

public function hasListeners($eventName = null);

[79] Fix | Delete

}

[80] Fix | Delete

[81] Fix | Delete