1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
<?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);
}
}
}
|
