X-Git-Url: http://git.inspyration.org/?a=blobdiff_plain;ds=sidebyside;f=vendor%2Fdoctrine%2Fcommon%2Flib%2FDoctrine%2FCommon%2FEventManager.php;fp=vendor%2Fdoctrine%2Fcommon%2Flib%2FDoctrine%2FCommon%2FEventManager.php;h=25aac445d117a9707aa0d1fc8c1f0b3a93e0f98a;hb=8b04b2d11798dee4f3e1358e4f43e97a6df851f6;hp=0000000000000000000000000000000000000000;hpb=73568cf05a785a45f94ca3f2351d9e07bf917958;p=zf2.biz%2Fapplication_blanche.git diff --git a/vendor/doctrine/common/lib/Doctrine/Common/EventManager.php b/vendor/doctrine/common/lib/Doctrine/Common/EventManager.php new file mode 100644 index 0000000..25aac44 --- /dev/null +++ b/vendor/doctrine/common/lib/Doctrine/Common/EventManager.php @@ -0,0 +1,147 @@ +. + */ + +namespace Doctrine\Common; + +/** + * The EventManager is the central point of Doctrine's event listener system. + * Listeners are registered on the manager and events are dispatched through the + * manager. + * + * @license http://www.opensource.org/licenses/lgpl-license.php LGPL + * @link www.doctrine-project.org + * @since 2.0 + * @version $Revision: 3938 $ + * @author Guilherme Blanco + * @author Jonathan Wage + * @author Roman Borschel + */ +class EventManager +{ + /** + * Map of registered listeners. + * => + * + * @var array + */ + private $_listeners = array(); + + /** + * Dispatches an event to all registered listeners. + * + * @param string $eventName The name of the event to dispatch. The name of the event is + * the name of the method that is invoked on listeners. + * @param EventArgs $eventArgs The event arguments to pass to the event handlers/listeners. + * If not supplied, the single empty EventArgs instance is used. + * @return boolean + */ + public function dispatchEvent($eventName, EventArgs $eventArgs = null) + { + if (isset($this->_listeners[$eventName])) { + $eventArgs = $eventArgs === null ? EventArgs::getEmptyInstance() : $eventArgs; + + foreach ($this->_listeners[$eventName] as $listener) { + $listener->$eventName($eventArgs); + } + } + } + + /** + * Gets the listeners of a specific event or all listeners. + * + * @param string $event The name of the event. + * @return array The event listeners for the specified event, or all event listeners. + */ + public function getListeners($event = null) + { + return $event ? $this->_listeners[$event] : $this->_listeners; + } + + /** + * Checks whether an event has any registered listeners. + * + * @param string $event + * @return boolean TRUE if the specified event has any listeners, FALSE otherwise. + */ + public function hasListeners($event) + { + return isset($this->_listeners[$event]) && $this->_listeners[$event]; + } + + /** + * Adds an event listener that listens on the specified events. + * + * @param string|array $events The event(s) to listen on. + * @param object $listener The listener object. + */ + public function addEventListener($events, $listener) + { + // Picks the hash code related to that listener + $hash = spl_object_hash($listener); + + foreach ((array) $events as $event) { + // Overrides listener if a previous one was associated already + // Prevents duplicate listeners on same event (same instance only) + $this->_listeners[$event][$hash] = $listener; + } + } + + /** + * Removes an event listener from the specified events. + * + * @param string|array $events + * @param object $listener + */ + public function removeEventListener($events, $listener) + { + // Picks the hash code related to that listener + $hash = spl_object_hash($listener); + + foreach ((array) $events as $event) { + // Check if actually have this listener associated + if (isset($this->_listeners[$event][$hash])) { + unset($this->_listeners[$event][$hash]); + } + } + } + + /** + * Adds an EventSubscriber. The subscriber is asked for all the events he is + * interested in and added as a listener for these events. + * + * @param \Doctrine\Common\EventSubscriber $subscriber The subscriber. + */ + public function addEventSubscriber(EventSubscriber $subscriber) + { + $this->addEventListener($subscriber->getSubscribedEvents(), $subscriber); + } + + /** + * Removes an EventSubscriber. The subscriber is asked for all the events it is + * interested in and removed as a listener for these events. + * + * @param \Doctrine\Common\EventSubscriber $subscriber The subscriber. + */ + public function removeEventSubscriber(EventSubscriber $subscriber) + { + $this->removeEventListener($subscriber->getSubscribedEvents(), $subscriber); + } +}