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/*

 *  dialog - Display simple dialog boxes from shell scripts

 *

 *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)

 *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)

 *

 *  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.

 */

#include "dialog.h"

static void Usage (const char *name);

typedef int (jumperFn) (const char *title, int argc, const char * const * argv);

struct Mode {

    char *name;

    int argmin, argmax, argmod;

    jumperFn *jumper;

};

jumperFn j_menu, j_checklist, j_radiolist, j_yesno, j_textbox, j_inputbox;

jumperFn j_msgbox, j_infobox;

static struct Mode modes[] =

{

    {"--menu", 9, 0, 3, j_menu},

    {"--checklist", 9, 0, 3, j_checklist},

    {"--radiolist", 9, 0, 3, j_radiolist},

    {"--yesno",    5,5,1, j_yesno},

    {"--textbox",  5,5,1, j_textbox},

    {"--inputbox", 5, 6, 1, j_inputbox},

    {"--msgbox", 5, 5, 1, j_msgbox},

    {"--infobox", 5, 5, 1, j_infobox},

    {NULL, 0, 0, 0, NULL}

};

static struct Mode *modePtr;

#ifdef LOCALE

#include <locale.h>

#endif

int

main (int argc, const char * const * argv)

{

    int offset = 0, clear_screen = 0, end_common_opts = 0, retval;

    const char *title = NULL;

#ifdef LOCALE

    (void) setlocale (LC_ALL, "");

#endif

#ifdef TRACE

    trace(TRACE_CALLS|TRACE_UPDATE);

#endif

    if (argc < 2) {

        Usage (argv[0]);

        exit (-1);

    }

    while (offset < argc - 1 && !end_common_opts) {     /* Common options */

        if (!strcmp (argv[offset + 1], "--title")) {

            if (argc - offset < 3 || title != NULL) {

                Usage (argv[0]);

                exit (-1);

            } else {

                title = argv[offset + 2];

                offset += 2;

            }

        } else if (!strcmp (argv[offset + 1], "--backtitle")) {

            if (backtitle != NULL) {

                Usage (argv[0]);

                exit (-1);

            } else {

                backtitle = argv[offset + 2];

                offset += 2;

            }

        } else if (!strcmp (argv[offset + 1], "--clear")) {

            if (clear_screen) { /* Hey, "--clear" can't appear twice! */

                Usage (argv[0]);

                exit (-1);

            } else if (argc == 2) {     /* we only want to clear the screen */

                init_dialog ();

                refresh ();     /* init_dialog() will clear the screen for us */

                end_dialog ();

                return 0;

            } else {

                clear_screen = 1;

                offset++;

            }

        } else                  /* no more common options */

            end_common_opts = 1;

    }

    if (argc - 1 == offset) {   /* no more options */

        Usage (argv[0]);

        exit (-1);

    }

    /* use a table to look for the requested mode, to avoid code duplication */

    for (modePtr = modes; modePtr->name; modePtr++)     /* look for the mode */

        if (!strcmp (argv[offset + 1], modePtr->name))

            break;

    if (!modePtr->name)

        Usage (argv[0]);

    if (argc - offset < modePtr->argmin)

        Usage (argv[0]);

    if (modePtr->argmax && argc - offset > modePtr->argmax)

        Usage (argv[0]);

    if (title && strlen(title) > atoi(argv[offset+4])-4)

        title[atoi(argv[offset+4])-4] = 0;

    init_dialog ();

    retval = (*(modePtr->jumper)) (title, argc - offset, argv + offset);

    if (clear_screen) {         /* clear screen before exit */

        attr_clear (stdscr, LINES, COLS, screen_attr);

        refresh ();

    }

    end_dialog();

    exit (retval);

}

/*

 * Print program usage

 */

static void

Usage (const char *name)

{

    fprintf (stderr, "\

\ndialog, by Savio Lam (lam836@cs.cuhk.hk).\

\n  patched by Stuart Herbert (S.Herbert@shef.ac.uk)\

\n  modified/gutted for use as a Linux kernel config tool by \

\n  William Roadcap (roadcapw@cfw.com)\

\n\

\n* Display dialog boxes from shell scripts *\

\n\

\nUsage: %s --clear\

\n       %s [--title <title>] [--backtitle <backtitle>] --clear <Box options>\

\n\

\nBox options:\

\n\

\n  --menu      <text> <height> <width> <menu height> <tag1> <item1>...\

\n  --checklist <text> <height> <width> <list height> <tag1> <item1> <status1>...\

\n  --radiolist <text> <height> <width> <list height> <tag1> <item1> <status1>...\

\n  --textbox   <file> <height> <width>\

\n  --inputbox  <text> <height> <width> [<init>]\

\n  --yesno     <text> <height> <width>\

", name, name);

    exit (-1);

}

/*

 * These are the program jumpers

 */

int

j_menu (const char *t, int ac, const char * const * av)

{

    return dialog_menu (t, av[2], atoi (av[3]), atoi (av[4]),

                        atoi (av[5]), av[6], (ac - 6) / 2, av + 7);

}

int

j_checklist (const char *t, int ac, const char * const * av)

{

    return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),

        atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_CHECK);

}

int

j_radiolist (const char *t, int ac, const char * const * av)

{

    return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),

        atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_RADIO);

}

int

j_textbox (const char *t, int ac, const char * const * av)

{

    return dialog_textbox (t, av[2], atoi (av[3]), atoi (av[4]));

}

int

j_yesno (const char *t, int ac, const char * const * av)

{

    return dialog_yesno (t, av[2], atoi (av[3]), atoi (av[4]));

}

int

j_inputbox (const char *t, int ac, const char * const * av)

{

    int ret = dialog_inputbox (t, av[2], atoi (av[3]), atoi (av[4]),

                            ac == 6 ? av[5] : (char *) NULL);

    if (ret == 0)

        fprintf(stderr, dialog_input_result);

    return ret;

}

int

j_msgbox (const char *t, int ac, const char * const * av)

{

    return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 1);

}

int

j_infobox (const char *t, int ac, const char * const * av)

{

    return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 0);

}