/source/includes/classes/plugin.php

 1<?php
 2/*
 3 * edite in NetBeans of IDE at version 7.0.1.
 4 */
 5/**
 6 * ??????
 7 * ????????????
 8 *
 9 * @author Zuolong Wang
10 */
11class Plugin {
12    private static $_pluginDir = 'Plug-in';
13    private static $_instance = null;
14    private static $_plugins = array();
15    /**
16     *?????
17     * 2011-11-22 ????? '.php'
18     * @var static
19     */
20    private static $_ext = '.php';
21    private function __construct() {
22        //???
23        defined('BIC_ROOT') || define('BIC_ROOT',substr(dirname(__FILE__),0,-16));
24        define('DS',DIRECTORY_SEPARATOR);
25        $this -> _pluginPath = BIC_ROOT . self :: $_pluginDir;
26    }
27    public static function init(){
28        if (is_null(self :: $_instance)){
29            self :: $_instance = new self();
30        }
31        return self :: $_instance;
32    }
33    public function add($hook,$pluginName){
34        self :: $_plugins[$hook][] = $pluginName;
35    }
36    /**
37     *????hook???????,???????
38     * @param type $hook
39     * @return type 
40     */
41    public function trigger($hook){
42        if (!isset(self :: $_plugins[$hook])) return;
43        foreach (self :: $_plugins[$hook] as $plugin){
44            //????
45            if (is_dir($this -> _pluginPath . $plugin)){
46                $plugin_file = $this -> _pluginPath . $plugin . DS . $plugin . self :: $_ext;
47            }else{
48                $plugin_file = $this -> _pluginPath . DS . $plugin . self :: $_ext;
49            }
50            //?????
51            if (is_string($plugin) && preg_match("/^[\w\-\/]+/mi",$plugin) && is_file($plugin_file)){
52                require $plugin_file;
53                /**
54                 * ???trigger()??????????????doAction()???????
55                 */
56                $params =  array_slice(func_get_args(),1);
57                call_user_func_array(array(new $plugin(),'doAction'),$params);
58            }else{
59                self :: log('???????????????? ?'.$plugin_file);
60            }
61        }
62    }
63    /**
64     *??????
65     * @param type $msg 
66     */
67    private static function log($msg){
68        echo $msg;
69    }
70}
71
72interface IPlugin{
73    function doAction();
74}
75?>