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./othercms/elxis_5.3_atlas_rev2452/includes/libraries/swift/classes/Swift/Events/SimpleEventDispatcher.php
<?php

/*
 * This file is part of SwiftMailer.
 * (c) 2004-2009 Chris Corbyn
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * The EventDispatcher which handles the event dispatching layer.
 *
 * @author Chris Corbyn
 */
class Swift_Events_SimpleEventDispatcher implements Swift_Events_EventDispatcher
{
   
/** A map of event types to their associated listener types */
   
private $_eventMap = array();

   
/** Event listeners bound to this dispatcher */
   
private $_listeners = array();

   
/** Listeners queued to have an Event bubbled up the stack to them */
   
private $_bubbleQueue = array();

   
/**
     * Create a new EventDispatcher.
     */
   
public function __construct()
    {
       
$this->_eventMap = array(
           
'Swift_Events_CommandEvent' => 'Swift_Events_CommandListener',
           
'Swift_Events_ResponseEvent' => 'Swift_Events_ResponseListener',
           
'Swift_Events_SendEvent' => 'Swift_Events_SendListener',
           
'Swift_Events_TransportChangeEvent' => 'Swift_Events_TransportChangeListener',
           
'Swift_Events_TransportExceptionEvent' => 'Swift_Events_TransportExceptionListener',
            );
    }

   
/**
     * Create a new SendEvent for $source and $message.
     *
     * @param Swift_Transport $source
     * @param Swift_Mime_Message
     *
     * @return Swift_Events_SendEvent
     */
   
public function createSendEvent(Swift_Transport $source, Swift_Mime_Message $message)
    {
        return new
Swift_Events_SendEvent($source, $message);
    }

   
/**
     * Create a new CommandEvent for $source and $command.
     *
     * @param Swift_Transport $source
     * @param string          $command      That will be executed
     * @param array           $successCodes That are needed
     *
     * @return Swift_Events_CommandEvent
     */
   
public function createCommandEvent(Swift_Transport $source, $command, $successCodes = array())
    {
        return new
Swift_Events_CommandEvent($source, $command, $successCodes);
    }

   
/**
     * Create a new ResponseEvent for $source and $response.
     *
     * @param Swift_Transport $source
     * @param string          $response
     * @param bool            $valid    If the response is valid
     *
     * @return Swift_Events_ResponseEvent
     */
   
public function createResponseEvent(Swift_Transport $source, $response, $valid)
    {
        return new
Swift_Events_ResponseEvent($source, $response, $valid);
    }

   
/**
     * Create a new TransportChangeEvent for $source.
     *
     * @param Swift_Transport $source
     *
     * @return Swift_Events_TransportChangeEvent
     */
   
public function createTransportChangeEvent(Swift_Transport $source)
    {
        return new
Swift_Events_TransportChangeEvent($source);
    }

   
/**
     * Create a new TransportExceptionEvent for $source.
     *
     * @param Swift_Transport          $source
     * @param Swift_TransportException $ex
     *
     * @return Swift_Events_TransportExceptionEvent
     */
   
public function createTransportExceptionEvent(Swift_Transport $source, Swift_TransportException $ex)
    {
        return new
Swift_Events_TransportExceptionEvent($source, $ex);
    }

   
/**
     * Bind an event listener to this dispatcher.
     *
     * @param Swift_Events_EventListener $listener
     */
   
public function bindEventListener(Swift_Events_EventListener $listener)
    {
        foreach (
$this->_listeners as $l) {
           
// Already loaded
           
if ($l === $listener) {
                return;
            }
        }
       
$this->_listeners[] = $listener;
    }

   
/**
     * Dispatch the given Event to all suitable listeners.
     *
     * @param Swift_Events_EventObject $evt
     * @param string                   $target method
     */
   
public function dispatchEvent(Swift_Events_EventObject $evt, $target)
    {
       
$this->_prepareBubbleQueue($evt);
       
$this->_bubble($evt, $target);
    }

   
/** Queue listeners on a stack ready for $evt to be bubbled up it */
   
private function _prepareBubbleQueue(Swift_Events_EventObject $evt)
    {
       
$this->_bubbleQueue = array();
       
$evtClass = get_class($evt);
        foreach (
$this->_listeners as $listener) {
            if (
array_key_exists($evtClass, $this->_eventMap)
                && (
$listener instanceof $this->_eventMap[$evtClass])) {
               
$this->_bubbleQueue[] = $listener;
            }
        }
    }

   
/** Bubble $evt up the stack calling $target() on each listener */
   
private function _bubble(Swift_Events_EventObject $evt, $target)
    {
        if (!
$evt->bubbleCancelled() && $listener = array_shift($this->_bubbleQueue)) {
           
$listener->$target($evt);
           
$this->_bubble($evt, $target);
        }
    }
}