Exemplo n.º 1
0
 /**
  * Static initializer for User_Agent that loads capabilities from the cookie
  * into a static object via self::parse_capabilities. If a cookie is not
  * set, this returns false.
  * 
  * @return bool
  */
 public static function init()
 {
     /**
      * If initialized, return initialized value without reprocessing.
      */
     if (self::$_init !== null) {
         return self::$_init;
     }
     /**
      * Define name of the cookie set by asets/js/core/server.js.
      */
     self::$_name = 'classification';
     /**
      * If cookie is set, extract contents and parse the JSON into a PHP
      * object, then setting initialized value to true. Otherwise, set it
      * false, as initialization has failed since no cookie is defined.
      */
     self::$_cookie = Cookie::get(self::$_name);
     if (isset(self::$_cookie)) {
         $capabilities = self::$_cookie;
         self::$_capabilities = self::parse($capabilities);
         self::$_init = true;
     } else {
         self::$_init = false;
     }
     /**
      * Return whether initialization succeeded or failed.
      */
     return self::$_init;
 }