|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* @Author : a.zinovyev |
|
4
|
|
|
* @Package: emittr |
|
5
|
|
|
* @License: http://www.opensource.org/licenses/mit-license.php |
|
6
|
|
|
*/ |
|
7
|
|
|
|
|
8
|
|
|
namespace xobotyi\emittr; |
|
9
|
|
|
|
|
10
|
|
|
class EventEmitter implements Interfaces\EventEmitter |
|
11
|
|
|
{ |
|
12
|
|
|
public const EVENT_LISTENER_ADDED = 'listenerAdded'; |
|
13
|
|
|
public const EVENT_LISTENER_REMOVED = 'listenerRemoved'; |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* @var Interfaces\EventEmitterGlobal; |
|
17
|
|
|
*/ |
|
18
|
|
|
private $eventEmitterGlobal; |
|
19
|
|
|
|
|
20
|
|
|
private $eventListeners = []; |
|
21
|
|
|
|
|
22
|
|
|
private $maxListenersCount = 10; |
|
23
|
|
|
|
|
24
|
|
|
public function __construct(?Interfaces\EventEmitterGlobal $emitterGlobal = null) { |
|
25
|
|
|
$this->setGlobalEmitter($emitterGlobal ?: EventEmitterGlobal::getInstance()); |
|
26
|
|
|
} |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* @param string|\xobotyi\emittr\Event $event |
|
30
|
|
|
* @param null $payload |
|
|
|
|
|
|
31
|
|
|
* |
|
32
|
|
|
* @return \xobotyi\emittr\EventEmitter |
|
33
|
|
|
*/ |
|
34
|
|
|
public function emit($event, $payload = null) :self { |
|
35
|
|
|
if (is_string($event)) { |
|
36
|
|
|
$event = new Event($event, $payload, get_called_class(), $this); |
|
37
|
|
|
} |
|
38
|
|
|
else if (!($event instanceof Event)) { |
|
|
|
|
|
|
39
|
|
|
throw new \TypeError('first parameter has to be of type string or \xobotyi\emittr\Event instance, got ' . gettype($event)); |
|
40
|
|
|
} |
|
41
|
|
|
|
|
42
|
|
|
if (empty($this->eventListeners) || $this->eventEmitterGlobal::propagateEvent($event, $this->eventListeners)) { |
|
43
|
|
|
$this->eventEmitterGlobal->propagateEventGlobal($event); |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
return $this; |
|
47
|
|
|
} |
|
48
|
|
|
|
|
49
|
|
|
public function on(string $eventName, $callback) :self { |
|
50
|
|
|
$this->eventEmitterGlobal::storeCallback($this->eventListeners, $eventName, $callback, $this->maxListenersCount, false, false); |
|
51
|
|
|
$this->emit(self::EVENT_LISTENER_ADDED, ['callback' => &$callback]); |
|
52
|
|
|
|
|
53
|
|
|
return $this; |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
public function once(string $eventName, $callback) :self { |
|
57
|
|
|
$this->eventEmitterGlobal::storeCallback($this->eventListeners, $eventName, $callback, $this->maxListenersCount, true, false); |
|
58
|
|
|
$this->emit(self::EVENT_LISTENER_ADDED, ['callback' => &$callback]); |
|
59
|
|
|
|
|
60
|
|
|
return $this; |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
public function prependListener(string $eventName, $callback) :self { |
|
64
|
|
|
$this->eventEmitterGlobal::storeCallback($this->eventListeners, $eventName, $callback, $this->maxListenersCount, false, true); |
|
65
|
|
|
$this->emit(self::EVENT_LISTENER_ADDED, ['callback' => &$callback]); |
|
66
|
|
|
|
|
67
|
|
|
return $this; |
|
68
|
|
|
} |
|
69
|
|
|
|
|
70
|
|
|
public function prependOnceListener(string $eventName, $callback) :self { |
|
71
|
|
|
$this->eventEmitterGlobal::storeCallback($this->eventListeners, $eventName, $callback, $this->maxListenersCount, true, true); |
|
72
|
|
|
$this->emit(self::EVENT_LISTENER_ADDED, ['callback' => &$callback]); |
|
73
|
|
|
|
|
74
|
|
|
return $this; |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
public function off(string $eventName, $callback) :self { |
|
78
|
|
|
if (empty($this->eventListeners[$eventName])) { |
|
79
|
|
|
return $this; |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
|
|
$this->eventListeners[$eventName] = \array_values(\array_filter($this->eventListeners[$eventName], function ($item) use (&$callback) { return $item[1] !== $callback; })); |
|
83
|
|
|
$this->emit(self::EVENT_LISTENER_REMOVED, ['eventName' => $eventName, 'callback' => &$callback]); |
|
84
|
|
|
|
|
85
|
|
|
if (empty($this->eventListeners[$eventName])) { |
|
86
|
|
|
unset($this->eventListeners[$eventName]); |
|
87
|
|
|
} |
|
88
|
|
|
|
|
89
|
|
|
return $this; |
|
90
|
|
|
} |
|
91
|
|
|
|
|
92
|
|
|
public function removeAllListeners(?string $eventName = null) :self { |
|
93
|
|
|
if ($eventName === null) { |
|
94
|
|
|
foreach ($this->eventListeners as $eventName => $callbacks) { |
|
95
|
|
|
foreach ($callbacks as &$callback) { |
|
96
|
|
|
$this->emit(self::EVENT_LISTENER_REMOVED, [ |
|
97
|
|
|
'eventName' => $eventName, |
|
98
|
|
|
'callback' => &$callback[1], |
|
99
|
|
|
]); |
|
100
|
|
|
} |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
$this->eventListeners = []; |
|
104
|
|
|
|
|
105
|
|
|
return $this; |
|
106
|
|
|
} |
|
107
|
|
|
|
|
108
|
|
|
if (empty($this->eventListeners[$eventName])) { |
|
109
|
|
|
return $this; |
|
110
|
|
|
} |
|
111
|
|
|
|
|
112
|
|
|
foreach ($this->eventListeners[$eventName] as $callback) { |
|
113
|
|
|
$this->emit(self::EVENT_LISTENER_REMOVED, ['eventName' => $eventName, 'callback' => &$callback[1]]); |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
|
|
unset($this->eventListeners[$eventName]); |
|
117
|
|
|
|
|
118
|
|
|
return $this; |
|
119
|
|
|
} |
|
120
|
|
|
|
|
121
|
|
|
public function getEventNames() :array { |
|
122
|
|
|
return empty($this->eventListeners) ? [] : \array_keys($this->eventListeners); |
|
123
|
|
|
} |
|
124
|
|
|
|
|
125
|
|
|
public function getListeners(?string $eventName = null) :array { |
|
126
|
|
|
return $eventName ? $this->eventListeners[$eventName] ?? [] : $this->eventListeners; |
|
127
|
|
|
} |
|
128
|
|
|
|
|
129
|
|
|
public function getMaxListenersCount() :int { |
|
130
|
|
|
return $this->maxListenersCount; |
|
131
|
|
|
} |
|
132
|
|
|
|
|
133
|
|
|
public function setMaxListenersCount(int $maxListenersCount) :self { |
|
134
|
|
|
if ($maxListenersCount < 0) { |
|
135
|
|
|
throw new \InvalidArgumentException('Listeners count must be greater or equal 0, got ' . $maxListenersCount); |
|
136
|
|
|
} |
|
137
|
|
|
|
|
138
|
|
|
$this->maxListenersCount = $maxListenersCount; |
|
139
|
|
|
|
|
140
|
|
|
return $this; |
|
141
|
|
|
} |
|
142
|
|
|
|
|
143
|
|
|
public function getGlobalEmitter() :Interfaces\EventEmitterGlobal { |
|
144
|
|
|
return $this->eventEmitterGlobal; |
|
145
|
|
|
} |
|
146
|
|
|
|
|
147
|
|
|
public function setGlobalEmitter(Interfaces\EventEmitterGlobal $emitterGlobal) :self { |
|
148
|
|
|
$this->eventEmitterGlobal = $emitterGlobal; |
|
149
|
|
|
|
|
150
|
|
|
return $this; |
|
151
|
|
|
} |
|
152
|
|
|
} |
xobotyi /
emittr
Loading history...