text: /***************************************************************
   *
   * Copyright (C) 1990-2007, Condor Team, Computer Sciences Department,
   * University of Wisconsin-Madison, WI.
   * 
   * Licensed under the Apache License, Version 2.0 (the "License"); you
   * may not use this file except in compliance with the License.  You may
   * obtain a copy of the License at
   * 
   *    http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   ***************************************************************/
  
  #ifndef __XINTERFACE_H__
  #define __XINTERFACE_H__
  #include "condor_common.h"
  #include "condor_daemon_core.h"
  #include "condor_debug.h"
  #include "condor_uid.h"
  #include <ctype.h>
  #include <X11/Xlib.h>
  #include <X11/Xatom.h>
  #include <X11/Xresource.h>
  
  class XInterface
  {
    public:
      XInterface(int id);
      ~XInterface();
  
      void SetBumpCheck(int delta_move, int delta_time);
  
      bool CheckActivity();
    private:
      bool ProcessEvents();
      void SelectEvents(Window win);
      bool QueryPointer();
  	bool QuerySSExtension();
      bool Connect();
      bool TryUser(const char *user);
  
  	void ReadUtmp();
  	void FinishConnection();
  
      Display     *_display;
      char*       _display_name;
      Window      _window;
      int         _screen;
      time_t      _last_event;
  
      Window       _pointer_root;
      Screen       *_pointer_screen;
      unsigned int _pointer_prev_mask;
      int          _pointer_prev_x;
      int          _pointer_prev_y;
  
      int          _small_move_delta;
      int          _bump_check_after_idle_time_sec;
  
      int         _daemon_core_timer;
      bool 	needsCheck;
      bool 	hasXss; 
  
      StringList  *_xauth_users;
  
  	// The following are for getting rid of the obnoxious utmp stuff.
  	FILE * utmp_fp;
  	std::vector<char *> *logged_on_users;
  };
  #endif //__XINTERFACE_H__
  