(*
 * <COPYRIGHT>
 * Copyright 2003 Gerd Stolpmann
 *
 * <GPL>
 * This file is part of WTimer.
 *
 * WTimer is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * WTimer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with WDialog; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * </>
 *)

(* $Id: selectuser.ml,v 1.5 2003/03/23 11:59:14 gerd Exp $
 * ----------------------------------------------------------------------
 *
 *)

open Wd_dialog
open Wd_run_cgi
open Wd_types

open Db.Types
open Definitions

class selectuser db universe name env =
object (self)
  inherit dialog universe name env
  inherit error_behaviour    

  method private check_auth () =
    check_auth db (self # dialog_variable "session")

  method private try_prepare_page() = 
    let login = User (self # string_variable "session.login-user") in
    let inst_list = Db_ac.Instance.list db login in
    let inst_list' =
      List.filter 
	(fun inst -> Db.Permission.check db inst.i_name login `Read) 
	inst_list in
    self # set_variable "sheetlist"
      (Dyn_enum_value
	 (List.map
	    (fun inst ->
	       let wr = Db.Permission.check db inst.i_name login `Write in
	       let name = match inst.i_name with Instance n -> n in
	       let ext_name = " (" ^ inst.i_description ^ ")" in
	       let ro_text = if wr then "" else " (read-only)" in
	       (name, name ^ ext_name ^ ro_text)
	    )
	    inst_list'
	 )
      )

  method private try_handle() =
    try
      raise(Change_dialog(Filemenu.handle (self :> dialog_type) db self#event))
    with
	Filemenu.Not_competent -> 
	  ( match self # event with
	      | Button "cont-error" ->
		  self # set_next_page "selector"
	      | _ ->
		  ()
	  )
end
;;

Registry.new_selectuser := 
  fun universe env opt_session ->
    let dlg = universe # create env "selectuser" in
    dlg # set_variable "session" (Dialog_value opt_session);
    dlg
;;

(* ======================================================================
 * History:
 * 
 * $Log: selectuser.ml,v $
 * Revision 1.5  2003/03/23 11:59:14  gerd
 * 	GPL
 *
 * Revision 1.4  2003/02/03 01:28:59  gerd
 * 	Continued.
 *
 * Revision 1.3  2003/01/26 23:45:16  gerd
 * 	Improved error behaviour.
 *
 * Revision 1.2  2003/01/16 00:39:25  gerd
 * 	Continued.
 *
 * Revision 1.1  2002/11/16 12:34:51  gerd
 * 	Initial revision
 *
 * 
 *)