/**********************************************************************
 *
 * delhistoryaction.h --  allows user to select history items to delete
 * Copyright (C) 1999  The New Zealand Digital Library Project
 *
 * A component of the Greenstone digital library software
 * from the New Zealand Digital Library Project at the
 * University of Waikato, New Zealand.
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *********************************************************************/


#ifndef DELHISTORYACTION_H
#define DELHISTORYACTION_H

#include "gsdlconf.h"
#include "action.h"


class delhistoryaction : public action {

protected:

  void define_history_macros (displayclass &disp, cgiargsclass &args, 
			       recptprotolistclass *protos, ostream &logout);

  void set_option_macro (const text_t &macroname, text_t current_value,
			 const FilterOption_t &option, displayclass &disp);


  bool delete_search_history(cgiargsclass &args);

public:
  delhistoryaction ();
  virtual ~delhistoryaction () {}
  
  void configure (const text_t &key, const text_tarray &cfgline);
  bool init (ostream &logout);
  
  text_t get_action_name () {return "dh";}
  
  bool check_cgiargs (cgiargsinfoclass &argsinfo, cgiargsclass &args, 
		      ostream &logout);

  void get_cgihead_info (cgiargsclass &args, recptprotolistclass *protos,
			 response_t &response, text_t &response_data, 
			 ostream &logout);
  
  void define_internal_macros (displayclass &disp, cgiargsclass &args, 
			       recptprotolistclass *protos, ostream &logout);

  void define_external_macros (displayclass &disp, cgiargsclass &args, 
			       recptprotolistclass *protos, ostream &logout);
  
  bool do_action (cgiargsclass &args, recptprotolistclass *protos, 
		  browsermapclass *browsers, displayclass &disp, 
		  outconvertclass &outconvert, ostream &textout, 
		  ostream &logout);
};

#endif