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/*
* Guillaume Cottenceau (gc@mandrakesoft.com)
*
* Copyright 2000 Mandrakesoft
*
* This software may be freely redistributed under the terms of the GNU
* public license.
*
* 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.
*
*/
/*
* Using high-level UI.
*
* These functions are frontend-independant: your program won't know each
* `frontend' (e.g. each way to grab user input) will be used.
*
* Then you may link your binary against any `frontend' that implement all
* these functions (and possibly necessary libraries).
*/
#ifndef _FRONTEND_H_
#define _FRONTEND_H_
/* this must be called before anything else */
void init_frontend(void);
/* this must be called before exit of program */
void finish_frontend(void);
void info_message(char *msg, ...) __attribute__ ((format (printf, 1, 2))); /* (blocks program) */
void error_message(char *msg, ...) __attribute__ ((format (printf, 1, 2))); /* (blocks program) */
/* (doesn't block program)
* (this is not necessarily stackable, e.g. only one wait_message at a time) */
void wait_message(char *msg, ...) __attribute__ ((format (printf, 1, 2)));
/* call this to finish the wait on wait_message */
void remove_wait_message(void);
/* monitor progression of something (downloading a file, etc)
* if size of progression is unknown, use `0' */
void init_progression(char *msg, int size);
void update_progression(int current_size);
void end_progression(void);
enum frontend_return { RETURN_OK, RETURN_BACK, RETURN_ERROR };
/* Yes == RETURN_OK No == RETURN_ERROR Back == RETURN_BACK */
enum frontend_return ask_yes_no(char *msg);
/* [elems] NULL terminated array of char*
* [choice] address of a (unitialized) char* */
enum frontend_return ask_from_list(char *msg, char ** elems, char ** choice);
enum frontend_return ask_from_list_comments(char *msg, char ** elems, char ** elems_comments, char ** choice);
/* [questions] NULL terminated array of char*
* [answers] address of a (unitialized) char**, will contain a non-NULL terminated array of char*
* [callback_func] function called at most when the answers change; it can examine the array of char* and assign some new char* */
enum frontend_return ask_from_entries(char *msg, char ** questions, char *** answers, int entry_size, void (*callback_func)(char ** strings));
#endif
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