/**
  *    class constructor
  *
  * @access public
  * @param  EE_Request $request
  * @return \EE_Request_Handler
  */
 public function __construct(EE_Request $request)
 {
     // grab request vars
     $this->_params = $request->params();
     // AJAX ???
     $this->ajax = defined('DOING_AJAX') && DOING_AJAX ? true : false;
     $this->front_ajax = defined('EE_FRONT_AJAX') && EE_FRONT_AJAX ? true : false;
     do_action('AHEE__EE_Request_Handler__construct__complete');
 }