lychee/php/Modules/Plugins.php

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