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99 lines
1.4 KiB
99 lines
1.4 KiB
<?php
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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;
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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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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($name, $location, array $args) {
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if (!isset($name, $location, $args)) return false;
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// Parse
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$location = ($location===0 ? 'before' : 'after');
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$action = $name . ":" . $location;
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// Save vars
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$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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