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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_EventManager
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
require_once 'Zend/Stdlib/CallbackHandler.php';
require_once 'Zend/Stdlib/PriorityQueue.php';
/**
* Event manager: notification system
*
* Use the EventManager when you want to create a per-instance notification
* system for your objects.
*
* @category Zend
* @package Zend_EventManager
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_EventManager_GlobalEventManager
{
/**
* @var Zend_EventManager_EventCollection
*/
protected static $events;
/**
* Set the event collection on which this will operate
*
* @param null|Zend_EventManager_EventCollection $events
* @return void
*/
public static function setEventCollection(Zend_EventManager_EventCollection $events = null)
{
self::$events = $events;
}
/**
* Get event collection on which this operates
*
* @return void
*/
public static function getEventCollection()
{
if (null === self::$events) {
self::setEventCollection(new Zend_EventManager_EventManager());
}
return self::$events;
}
/**
* Trigger an event
*
* @param string $event
* @param object|string $context
* @param array|object $argv
* @return Zend_EventManager_ResponseCollection
*/
public static function trigger($event, $context, $argv = array())
{
return self::getEventCollection()->trigger($event, $context, $argv);
}
/**
* Trigger listeenrs until return value of one causes a callback to evaluate
* to true.
*
* @param string $event
* @param string|object $context
* @param array|object $argv
* @param callback $callback
* @return Zend_EventManager_ResponseCollection
*/
public static function triggerUntil($event, $context, $argv, $callback)
{
return self::getEventCollection()->triggerUntil($event, $context, $argv, $callback);
}
/**
* Attach a listener to an event
*
* @param string $event
* @param callback $callback
* @param int $priority
* @return Zend_Stdlib_CallbackHandler
*/
public static function attach($event, $callback, $priority = 1)
{
return self::getEventCollection()->attach($event, $callback, $priority);
}
/**
* Detach a callback from a listener
*
* @param Zend_Stdlib_CallbackHandler $listener
* @return bool
*/
public static function detach(Zend_Stdlib_CallbackHandler $listener)
{
return self::getEventCollection()->detach($listener);
}
/**
* Retrieve list of events this object manages
*
* @return array
*/
public static function getEvents()
{
return self::getEventCollection()->getEvents();
}
/**
* Retrieve all listeners for a given event
*
* @param string $event
* @return Zend_Stdlib_PriorityQueue|array
*/
public static function getListeners($event)
{
return self::getEventCollection()->getListeners($event);
}
/**
* Clear all listeners for a given event
*
* @param string $event
* @return void
*/
public static function clearListeners($event)
{
return self::getEventCollection()->clearListeners($event);
}
}
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