classes/pluginhost.php

   1 <?php
   2 class PluginHost {
   3         private $link;
   4         private $hooks = array();
   5         private $plugins = array();
   6
   7         const HOOK_ARTICLE_BUTTON = 1;
   8         const HOOK_ARTICLE_FILTER = 2;
   9
  10         function __construct($link) {
  11                 $this->link = $link;
  12         }
  13
  14         private function register_plugin($name, $plugin) {
  15                 //array_push($this->plugins, $plugin);
  16                 $this->plugins[$name] = $plugin;
  17         }
  18
  19         function get_link() {
  20                 return $this->link;
  21         }
  22
  23         function get_plugins() {
  24                 return $this->plugins;
  25         }
  26
  27         function get_plugin($name) {
  28                 return $this->plugins[$name];
  29         }
  30
  31         function add_hook($type, $sender) {
  32                 if (!is_array($this->hooks[$type])) {
  33                         $this->hooks[$type] = array();
  34                 }
  35
  36                 array_push($this->hooks[$type], $sender);
  37         }
  38
  39         function del_hook($type, $sender) {
  40                 if (is_array($this->hooks[$type])) {
  41                         $key = array_Search($this->hooks[$type], $sender);
  42                         if ($key !== FALSE) {
  43                                 unset($this->hooks[$type][$key]);
  44                         }
  45                 }
  46         }
  47
  48         function get_hooks($type) {
  49                 return $this->hooks[$type];
  50         }
  51
  52         function load($classlist) {
  53                 $plugins = explode(",", $classlist);
  54
  55                 foreach ($plugins as $class) {
  56                         $class = trim($class);
  57                         $class_file = str_replace("_", "/", strtolower(basename($class)));
  58                         $file = dirname(__FILE__)."/../plugins/$class_file/$class_file.php";
  59
  60                         if (file_exists($file)) require_once $file;
  61
  62                         if (class_exists($class) && is_subclass_of($class, "Plugin")) {
  63                                 $plugin = new $class($this);
  64
  65                                 $this->register_plugin($class, $plugin);
  66                         }
  67                 }
  68         }
  69
  70 }
  71 ?>