|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* @package CleverStyle Framework |
|
4
|
|
|
* @author Nazar Mokrynskyi <[email protected]> |
|
5
|
|
|
* @copyright Copyright (c) 2015-2016, Nazar Mokrynskyi |
|
6
|
|
|
* @license MIT License, see license.txt |
|
7
|
|
|
*/ |
|
8
|
|
|
namespace cs; |
|
9
|
|
|
/** |
|
10
|
|
|
* @method static $this instance($check = false) |
|
11
|
|
|
*/ |
|
12
|
|
|
class Event { |
|
13
|
|
|
use |
|
14
|
|
|
Singleton; |
|
15
|
|
|
const INIT_STATE_METHOD = 'init'; |
|
16
|
|
|
/** |
|
17
|
|
|
* @var callable[][] |
|
18
|
|
|
*/ |
|
19
|
|
|
protected $callbacks = []; |
|
20
|
|
|
/** |
|
21
|
|
|
* @var callable[][] |
|
22
|
|
|
*/ |
|
23
|
|
|
protected $callbacks_cache; |
|
24
|
90 |
|
protected function construct () { |
|
25
|
90 |
|
foreach ($this->events_files_paths() as $path) { |
|
26
|
84 |
|
include $path; |
|
27
|
|
|
} |
|
28
|
90 |
|
} |
|
29
|
90 |
|
protected function init () { |
|
30
|
|
|
/** |
|
31
|
|
|
* All events handlers registered before first request processing was started should be cached for further requests |
|
32
|
|
|
*/ |
|
33
|
|
|
/** @noinspection PhpUndefinedFieldInspection */ |
|
34
|
90 |
|
if ($this->__request_id === 1) { |
|
35
|
44 |
|
$this->callbacks_cache = $this->callbacks; |
|
36
|
|
|
} |
|
37
|
|
|
/** |
|
38
|
|
|
* Starting from seconds request we'll take cache and use it as reference set of events handlers |
|
39
|
|
|
*/ |
|
40
|
|
|
/** @noinspection PhpUndefinedFieldInspection */ |
|
41
|
90 |
|
if ($this->__request_id > 1) { |
|
42
|
16 |
|
$this->callbacks = $this->callbacks_cache; |
|
43
|
|
|
} |
|
44
|
90 |
|
} |
|
45
|
|
|
/** |
|
46
|
|
|
* Add event handler |
|
47
|
|
|
* |
|
48
|
|
|
* @param string $event For example `admin/System/modules/disable` |
|
49
|
|
|
* @param callable $callback Callable, that will be called at event dispatching |
|
50
|
|
|
* |
|
51
|
|
|
* @return Event |
|
52
|
|
|
*/ |
|
53
|
90 |
|
public function on ($event, callable $callback) { |
|
54
|
90 |
|
if (!$event) { |
|
55
|
2 |
|
return $this; |
|
56
|
|
|
} |
|
57
|
90 |
|
$this->callbacks[$event][] = $callback; |
|
58
|
90 |
|
return $this; |
|
59
|
|
|
} |
|
60
|
|
|
/** |
|
61
|
|
|
* Remove event handler |
|
62
|
|
|
* |
|
63
|
|
|
* @param string $event |
|
64
|
|
|
* @param callable|null $callback If not specified - all callbacks for this event will be removed |
|
65
|
|
|
* |
|
66
|
|
|
* @return Event |
|
67
|
|
|
*/ |
|
68
|
8 |
|
public function off ($event, $callback = null) { |
|
69
|
8 |
|
if (!isset($this->callbacks[$event])) { |
|
70
|
2 |
|
return $this; |
|
71
|
|
|
} |
|
72
|
8 |
|
if (!$callback) { |
|
73
|
2 |
|
unset($this->callbacks[$event]); |
|
74
|
2 |
|
return $this; |
|
75
|
|
|
} |
|
76
|
8 |
|
$this->callbacks[$event] = array_filter( |
|
77
|
8 |
|
$this->callbacks[$event], |
|
78
|
|
|
function ($c) use ($callback) { |
|
79
|
8 |
|
return $c !== $callback; |
|
80
|
8 |
|
} |
|
81
|
|
|
); |
|
82
|
8 |
|
return $this; |
|
83
|
|
|
} |
|
84
|
|
|
/** |
|
85
|
|
|
* Similar to `::on()`, but but removes handler after handling of first event |
|
86
|
|
|
* |
|
87
|
|
|
* @param string $event |
|
88
|
|
|
* @param callable $callback |
|
89
|
|
|
* |
|
90
|
|
|
* @return Event |
|
91
|
|
|
*/ |
|
92
|
|
|
public function once ($event, callable $callback) { |
|
93
|
10 |
|
$wrapped_callback = function (...$arguments) use (&$wrapped_callback, $event, $callback) { |
|
94
|
8 |
|
$this->off($event, $wrapped_callback); |
|
95
|
8 |
|
return $callback(...$arguments); |
|
96
|
10 |
|
}; |
|
97
|
10 |
|
return $this->on($event, $wrapped_callback); |
|
98
|
|
|
} |
|
99
|
|
|
/** |
|
100
|
|
|
* Fire event |
|
101
|
|
|
* |
|
102
|
|
|
* After event name it is possible to specify as many arguments as needed |
|
103
|
|
|
* |
|
104
|
|
|
* @param string $event For example `admin/System/modules/disable` |
|
105
|
|
|
* @param mixed[] $arguments |
|
106
|
|
|
* |
|
107
|
|
|
* @return bool |
|
108
|
|
|
*/ |
|
109
|
88 |
|
public function fire ($event, ...$arguments) { |
|
110
|
|
|
if ( |
|
111
|
88 |
|
!$event || |
|
112
|
88 |
|
!isset($this->callbacks[$event]) |
|
113
|
|
|
) { |
|
114
|
84 |
|
return true; |
|
115
|
|
|
} |
|
116
|
72 |
|
foreach ($this->callbacks[$event] as $callback) { |
|
117
|
72 |
|
if ($callback(...$arguments) === false) { |
|
118
|
70 |
|
return false; |
|
119
|
|
|
} |
|
120
|
|
|
} |
|
121
|
70 |
|
return true; |
|
122
|
|
|
} |
|
123
|
|
|
/** |
|
124
|
|
|
* @return string[] |
|
125
|
|
|
*/ |
|
126
|
90 |
|
protected function events_files_paths () { |
|
127
|
90 |
|
$paths = []; |
|
128
|
90 |
|
foreach (get_files_list(MODULES, false, 'd', true) as $path) { |
|
129
|
84 |
|
if (file_exists("$path/events.php")) { |
|
130
|
84 |
|
$paths[] = "$path/events.php"; |
|
131
|
|
|
} |
|
132
|
|
|
} |
|
133
|
90 |
|
return $paths; |
|
134
|
|
|
} |
|
135
|
|
|
} |
|
136
|
|
|
|
nazar-pc /
CleverStyle-Framework
