lychee/php/Modules/Plugins.php
2016-01-30 00:07:22 +01:00

95 lines
1.3 KiB
PHP

<?php
namespace Lychee\Modules;
use SplSubject;
use SplObserver;
final class Plugins implements SplSubject {
private static $instance = null;
private $observers = array();
public $action = null;
public $args = null;
public static function get() {
if (!self::$instance) {
$files = Settings::get()['plugins'];
self::$instance = new self($files);
}
return self::$instance;
}
private function __construct(array $plugins) {
# Load plugins
foreach ($plugins as $plugin) {
if ($plugin==='') continue;
$this->attach(new $plugin);
}
return true;
}
public function attach(SplObserver $observer) {
if (!isset($observer)) return false;
# Add observer
$this->observers[] = $observer;
return true;
}
public function detach(SplObserver $observer) {
if (!isset($observer)) return false;
# Remove observer
$key = array_search($observer, $this->observers, true);
if ($key) unset($this->observers[$key]);
return true;
}
public function notify() {
# Notify each observer
foreach ($this->observers as $value) $value->update($this);
return true;
}
public function activate($action, $args) {
if (!isset($action, $args)) return false;
# Save vars
$this->action = $action;
$this->args = $args;
# Notify observers
$this->notify();
return true;
}
}
?>