103 lines
1.5 KiB
PHP
103 lines
1.5 KiB
PHP
<?php
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###
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# @name Plugins Module
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# @copyright 2015 by Tobias Reich
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###
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if (!defined('LYCHEE')) exit('Error: Direct access is not allowed!');
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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;
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public $args = null;
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public static function get() {
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if (!self::$instance) {
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$files = Settings::get()['plugins'];
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self::$instance = new self($files);
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}
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return self::$instance;
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}
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private function __construct(array $plugins) {
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# Load plugins
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foreach ($plugins as $plugin) {
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if ($plugin==='') continue;
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$this->attach(new $plugin);
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}
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return true;
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}
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private function __clone() {
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# Magic method clone is empty to prevent duplication of plugins
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}
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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;
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return true;
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}
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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, $this->observers, true);
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if ($key) unset($this->observers[$key]);
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return true;
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}
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public function notify() {
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# Notify each observer
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foreach ($this->observers as $value) $value->update($this);
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return true;
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}
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public function activate($action, $args) {
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if (!isset($action, $args)) return false;
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# Save vars
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$this->action = $action;
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$this->args = $args;
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# Notify observers
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$this->notify();
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return true;
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}
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}
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?>
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