Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\EventDispatcher;
Chris@0: 
Chris@0: /**
Chris@0:  * A read-only proxy for an event dispatcher.
Chris@0:  *
Chris@0:  * @author Bernhard Schussek <bschussek@gmail.com>
Chris@0:  */
Chris@0: class ImmutableEventDispatcher implements EventDispatcherInterface
Chris@0: {
Chris@0:     private $dispatcher;
Chris@0: 
Chris@0:     public function __construct(EventDispatcherInterface $dispatcher)
Chris@0:     {
Chris@0:         $this->dispatcher = $dispatcher;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function dispatch($eventName, Event $event = null)
Chris@0:     {
Chris@0:         return $this->dispatcher->dispatch($eventName, $event);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function addListener($eventName, $listener, $priority = 0)
Chris@0:     {
Chris@0:         throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function addSubscriber(EventSubscriberInterface $subscriber)
Chris@0:     {
Chris@0:         throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function removeListener($eventName, $listener)
Chris@0:     {
Chris@0:         throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function removeSubscriber(EventSubscriberInterface $subscriber)
Chris@0:     {
Chris@0:         throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function getListeners($eventName = null)
Chris@0:     {
Chris@0:         return $this->dispatcher->getListeners($eventName);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function getListenerPriority($eventName, $listener)
Chris@0:     {
Chris@0:         return $this->dispatcher->getListenerPriority($eventName, $listener);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function hasListeners($eventName = null)
Chris@0:     {
Chris@0:         return $this->dispatcher->hasListeners($eventName);
Chris@0:     }
Chris@0: }