143 lines
4.3 KiB
PHP
143 lines
4.3 KiB
PHP
<?php
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/*
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* This file is part of SwiftMailer.
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* (c) 2004-2009 Chris Corbyn
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* The EventDispatcher which handles the event dispatching layer.
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*
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* @author Chris Corbyn
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*/
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class Swift_Events_SimpleEventDispatcher implements Swift_Events_EventDispatcher
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{
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/** A map of event types to their associated listener types */
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private $eventMap = [];
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/** Event listeners bound to this dispatcher */
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private $listeners = [];
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/**
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* Create a new EventDispatcher.
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*/
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public function __construct()
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{
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$this->eventMap = [
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'Swift_Events_CommandEvent' => 'Swift_Events_CommandListener',
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'Swift_Events_ResponseEvent' => 'Swift_Events_ResponseListener',
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'Swift_Events_SendEvent' => 'Swift_Events_SendListener',
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'Swift_Events_TransportChangeEvent' => 'Swift_Events_TransportChangeListener',
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'Swift_Events_TransportExceptionEvent' => 'Swift_Events_TransportExceptionListener',
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];
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}
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/**
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* Create a new SendEvent for $source and $message.
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*
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* @return Swift_Events_SendEvent
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*/
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public function createSendEvent(Swift_Transport $source, Swift_Mime_SimpleMessage $message)
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{
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return new Swift_Events_SendEvent($source, $message);
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}
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/**
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* Create a new CommandEvent for $source and $command.
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*
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* @param string $command That will be executed
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* @param array $successCodes That are needed
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*
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* @return Swift_Events_CommandEvent
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*/
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public function createCommandEvent(Swift_Transport $source, $command, $successCodes = [])
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{
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return new Swift_Events_CommandEvent($source, $command, $successCodes);
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}
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/**
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* Create a new ResponseEvent for $source and $response.
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*
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* @param string $response
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* @param bool $valid If the response is valid
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*
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* @return Swift_Events_ResponseEvent
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*/
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public function createResponseEvent(Swift_Transport $source, $response, $valid)
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{
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return new Swift_Events_ResponseEvent($source, $response, $valid);
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}
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/**
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* Create a new TransportChangeEvent for $source.
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*
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* @return Swift_Events_TransportChangeEvent
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*/
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public function createTransportChangeEvent(Swift_Transport $source)
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{
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return new Swift_Events_TransportChangeEvent($source);
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}
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/**
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* Create a new TransportExceptionEvent for $source.
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*
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* @return Swift_Events_TransportExceptionEvent
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*/
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public function createTransportExceptionEvent(Swift_Transport $source, Swift_TransportException $ex)
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{
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return new Swift_Events_TransportExceptionEvent($source, $ex);
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}
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/**
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* Bind an event listener to this dispatcher.
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*/
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public function bindEventListener(Swift_Events_EventListener $listener)
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{
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foreach ($this->listeners as $l) {
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// Already loaded
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if ($l === $listener) {
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return;
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}
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}
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$this->listeners[] = $listener;
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}
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/**
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* Dispatch the given Event to all suitable listeners.
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*
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* @param string $target method
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*/
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public function dispatchEvent(Swift_Events_EventObject $evt, $target)
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{
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$bubbleQueue = $this->prepareBubbleQueue($evt);
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$this->bubble($bubbleQueue, $evt, $target);
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}
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/** Queue listeners on a stack ready for $evt to be bubbled up it */
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private function prepareBubbleQueue(Swift_Events_EventObject $evt)
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{
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$bubbleQueue = [];
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$evtClass = \get_class($evt);
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foreach ($this->listeners as $listener) {
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if (\array_key_exists($evtClass, $this->eventMap)
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&& ($listener instanceof $this->eventMap[$evtClass])) {
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$bubbleQueue[] = $listener;
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}
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}
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return $bubbleQueue;
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}
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/** Bubble $evt up the stack calling $target() on each listener */
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private function bubble(array &$bubbleQueue, Swift_Events_EventObject $evt, $target)
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{
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if (!$evt->bubbleCancelled() && $listener = array_shift($bubbleQueue)) {
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$listener->$target($evt);
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$this->bubble($bubbleQueue, $evt, $target);
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}
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}
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}
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