[thirdparty/newt.git] / whiptail.c

#include "config.h"
#include <fcntl.h>
#include <popt.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <wchar.h>
#include <slang.h>

#include "nls.h"
#include "dialogboxes.h"
#include "newt.h"
#include "newt_pr.h"

enum { NO_ERROR = 0, WAS_ERROR = 1 };

enum mode { MODE_NONE, MODE_INFOBOX, MODE_MSGBOX, MODE_YESNO, MODE_CHECKLIST,
		MODE_INPUTBOX, MODE_RADIOLIST, MODE_MENU, MODE_GAUGE ,
		MODE_TEXTBOX, MODE_PASSWORDBOX};

#define OPT_MSGBOX 		1000
#define OPT_CHECKLIST 		1001
#define OPT_YESNO 		1002
#define OPT_INPUTBOX 		1003
#define OPT_FULLBUTTONS 	1004
#define OPT_MENU	 	1005
#define OPT_RADIOLIST	 	1006
#define OPT_GAUGE	 	1007
#define OPT_INFOBOX	 	1008
#define OPT_TEXTBOX		1009
#define OPT_PASSWORDBOX		1010

static void usage(int err) {
    newtFinished();
    fprintf (err ? stderr : stdout,
             _("Box options: \n"
	       "\t--msgbox <text> <height> <width>\n"
	       "\t--yesno  <text> <height> <width>\n"
	       "\t--infobox <text> <height> <width>\n"
	       "\t--inputbox <text> <height> <width> [init] \n"
	       "\t--passwordbox <text> <height> <width> [init] \n"
	       "\t--textbox <file> <height> <width>\n"
	       "\t--menu <text> <height> <width> <listheight> [tag item] ...\n"
	       "\t--checklist <text> <height> <width> <listheight> [tag item status]...\n"
	       "\t--radiolist <text> <height> <width> <listheight> [tag item status]...\n"
	       "\t--gauge <text> <height> <width> <percent>\n"
	       "Options: (depend on box-option)\n"
	       "\t--clear				clear screen on exit\n"
	       "\t--defaultno			default no button\n"	
	       "\t--default-item <string>		set default string\n"
	       "\t--fb				use full buttons\n"
	       "\t--nocancel			no cancel button\n"
	       "\t--yes-button <text>		set text of yes button\n"
	       "\t--no-button <text>		set text of no button\n"
	       "\t--ok-button <text>		set text of ok button\n"
	       "\t--cancel-button <text>		set text of cancel button\n"
	       "\t--noitem			display tags only\n"
	       "\t--separate-output		output one line at a time\n"
	       "\t--output-fd <fd>		output to fd, not stdout\n"
	       "\t--title <title>			display title\n"
	       "\t--backtitle <backtitle>		display backtitle\n"
	       "\t--scrolltext			force verical scrollbars\n"
	       "\t--topleft			put window in top-left corner\n\n"));
    exit(err ? DLG_ERROR : 0 );
}

static void print_version(void) {
    fprintf (stdout, _("whiptail (newt): %s\n"), VERSION);
}
	     
static void handleSighup(int signum) {
       exit(DLG_ERROR);
}

#if 0
/* FIXME Copied from newt.c
 * Place somewhere better -- dialogboxes? -- amck
 */
int wstrlen(const char *str, int len) {
       mbstate_t ps;
       wchar_t tmp;
       int nchars = 0;

       if (!str) return 0;
      if (!len) return 0;
       if (len < 0) len = strlen(str);
      memset(&ps,0,sizeof(mbstate_t));
       while (len > 0) {
               int x,y;

               x = mbrtowc(&tmp,str,len,&ps);
               if (x >0) {
                       str += x;
                       len -= x;
                       y = wcwidth(tmp);
                       if (y>0)
                         nchars+=y;
               } else break;
       }
       return nchars;
}
#endif

/*
 * The value of *width is increased if it is not as large as the width of
 * the line.
 */
static const char * lineWidth(int * width, const char * line, int *chrs)
{
    const char *    s = line;

    if ( line == NULL )
       return 0;

   while ( *s != '\0' && *s != '\n' )
       s++;

    if ( *s == '\n' )
       s++;

    *chrs = _newt_wstrlen (line, s - line );
    *width = max(*width, *chrs);

    return s;
}


/*
 * cleanNewlines
 * Handle newlines in text. Hack.
 */
void cleanNewlines (char *text)
{
       char *p = text;
       while (*p) {
               if ((*p == '\\') && (*(p+1) == 'n')) {
                       *p = '\n';
                       *(p+1) = ' ';
               } else  {
                       p++;
               }
       }
}

/*
 * The height of a text string is added to height, and width is increased
 * if it is not big enough to store the text string.
 */
static const char * textSize(int * height, int * width,
                            int maxWidth,
                            const char * text)
{
    int h = 0;
    int w = 0;
    int chrs = 0;


    if ( text == NULL )
       return 0;

   while ( *text != '\0' ) {
       h++;
       text = lineWidth(width, text, &chrs);
       /* Allow for text overflowing. May overestimate a bit */
       h += chrs /  maxWidth;
    }

    h += 2;
   w += 2;

    *height += h;
    *width += w;

    *width = min(*width, maxWidth);
    return text;
}

/*
 * Add space for buttons.
 * NOTE: when this is internationalized, the button width might change.
 */
static void spaceForButtons(int * height, int * width, int count, int full) {
    /* Make space for the buttons */
    if ( full ) {
       *height += 4;
       if ( count == 1 )
           *width = max(*width, 7);
       else
           *width = max(*width, 20);
    }
    else {
       *height += 2;
       if ( count == 1 )
           *width = max(*width, 7);
       else
           *width = max(*width, 19);
    }
}

static int menuSize(int * height, int * width, enum mode mode,
		    poptContext options) {
    const char ** argv = poptGetArgs(options);
    const char ** items = argv;
    int         h = 0;
    int         tagWidth = 0;
    int         descriptionWidth = 0;
    int         overhead = 10;
    static char buf[20];

    if ( argv == 0 || *argv == 0 )
       return 0;

    argv++;
    if ( mode == MODE_MENU )
       overhead = 5;

    while ( argv[0] != 0 && argv[1] ) {
       tagWidth = max(tagWidth, strlen(argv[0]));
       descriptionWidth = max(descriptionWidth, strlen(argv[1]));

       if ( mode == MODE_MENU )
           argv += 2;
       else
          argv += 3;
       h++;
    }

    *width = max(*width, tagWidth + descriptionWidth + overhead);
    *width = min(*width, SLtt_Screen_Cols);

    h = min(h, SLtt_Screen_Rows - *height - 4);
    *height = *height + h + 1;
    sprintf(buf, "%d", h);
   *items = buf;
    return 0;
}

/*
 * Guess the size of a window, given what will be displayed within it.
 */
static void guessSize(int * height, int * width, enum mode mode,
                     int * flags, int fullButtons,
                     const char * title, const char * text,
                     poptContext options) {

    int w = 0, h = 0, chrs = 0;

    textSize(&h, &w, SLtt_Screen_Cols -4 , text);     /* Width and height for text */
    lineWidth(&w, title, &chrs);             /* Width for title */

    if ( w > 0 )
       w += 4;

    switch ( mode ) {
       case MODE_CHECKLIST:
       case MODE_RADIOLIST:
       case MODE_MENU:
           spaceForButtons(&h, &w, *flags & FLAG_NOCANCEL ? 1 : 2,
            fullButtons);
           menuSize(&h, &w, mode, options);
               break;
       case MODE_YESNO:
       case MODE_MSGBOX:
           spaceForButtons(&h, &w, 1, fullButtons);
           break;
       case MODE_INPUTBOX:
           spaceForButtons(&h, &w, *flags & FLAG_NOCANCEL ? 1 : 2,
            fullButtons);
           h += 1;
           break;
       case MODE_GAUGE:
           h += 2;
           break;
       case MODE_NONE:
	   break;
       default:
               break;
    };

    /*
     * Fixed window-border overhead.
     * NOTE: This will change if we add a way to turn off drop-shadow and/or
     * box borders. That would be desirable for display-sized screens.
     */
    w += 2;
    h += 2;

   if ( h > SLtt_Screen_Rows - 1 ) {
       h = SLtt_Screen_Rows - 1;
       *flags |= FLAG_SCROLL_TEXT;
       w += 2; /* Add width of slider - is this right? */
    }

    *width = min(max(*width, w), SLtt_Screen_Cols);
    *height = max(*height, h);
}

char *
readTextFile(const char * filename)
{
    int fd = open(filename, O_RDONLY, 0);
    struct stat s;
    char * buf;

    if ( fd < 0 || fstat(fd, &s) != 0 ) {
       perror(filename);
       exit(DLG_ERROR);
     }

    if ( (buf = malloc(s.st_size)) == 0 )
       fprintf(stderr, _("%s: too large to display.\n"), filename);

    if ( read(fd, buf, s.st_size) != s.st_size ) {
        perror(filename);
        exit(DLG_ERROR);
    }
   close(fd);
   return buf;
}

int main(int argc, const char ** argv) {
    enum mode mode = MODE_NONE;
    poptContext optCon;
    int arg;
    const char * optArg;
    char * text;
    const char * nextArg;
    char * end;
    struct sigaction sa;
    int height;
    int width;
    int fd = -1;
    int needSpace = 0;
    int noCancel = 0;
    int noTags = 0;
    int noItem = 0;
    int clear = 0;
    int scrollText = 0;
    int rc = DLG_CANCEL;
    int flags = 0;
    int defaultNo = 0;
    int separateOutput = 0;
    int fullButtons = 0;
    int outputfd = 2;
    int topLeft = 0;
    FILE *output = stderr;
    const char * result;
    const char ** selections, ** next;
    char * title = NULL;
    char *default_item = NULL;
    char * backtitle = NULL;
    char * yes_button = NULL;
    char * no_button = NULL;
    char * ok_button = NULL;
    char * cancel_button = NULL;
    int help = 0, version = 0;
    struct poptOption optionsTable[] = {
	    { "backtitle", '\0', POPT_ARG_STRING, &backtitle, 0 },
	    { "checklist", '\0', 0, 0, OPT_CHECKLIST },
	    { "clear", '\0', 0, &clear, 0 },
	    { "defaultno", '\0', 0, &defaultNo, 0 },
	    { "inputbox", '\0', 0, 0, OPT_INPUTBOX },
	    { "fb", '\0', 0, 0, OPT_FULLBUTTONS },
	    { "fullbuttons", '\0', 0, 0, OPT_FULLBUTTONS },
	    { "gauge", '\0', 0, 0, OPT_GAUGE },
	    { "infobox", '\0', 0, 0, OPT_INFOBOX },
	    { "menu", '\0', 0, 0, OPT_MENU },
	    { "msgbox", '\0', 0, 0, OPT_MSGBOX },
	    { "nocancel", '\0', 0, &noCancel, 0 },
	    { "noitem", '\0', 0, &noItem, 0 },
            { "default-item", '\0', POPT_ARG_STRING, &default_item, 0},
	    { "notags", '\0', 0, &noTags, 0 },
	    { "radiolist", '\0', 0, 0, OPT_RADIOLIST },
	    { "scrolltext", '\0', 0, &scrollText, 0 },
	    { "separate-output", '\0', 0, &separateOutput, 0 },
	    { "title", '\0', POPT_ARG_STRING, &title, 0 },
	    { "textbox", '\0', 0, 0, OPT_TEXTBOX },
	    { "topleft", '\0', 0, &topLeft, 0 },
	    { "yesno", '\0', 0, 0, OPT_YESNO },
	    { "passwordbox", '\0', 0, 0, OPT_PASSWORDBOX },
	    { "output-fd", '\0',  POPT_ARG_INT, &outputfd, 0 },
	    { "yes-button", '\0', POPT_ARG_STRING, &yes_button, 0},
	    { "no-button", '\0', POPT_ARG_STRING, &no_button, 0},
	    { "ok-button", '\0', POPT_ARG_STRING, &ok_button, 0},
	    { "cancel-button", '\0', POPT_ARG_STRING, &cancel_button, 0},
	    { "help", 'h', 0,  &help, 0, NULL, NULL },
	    { "version", 'v', 0, &version, 0, NULL, NULL },
	    { 0, 0, 0, 0, 0 } 
    };
   
#ifdef ENABLE_NLS
    setlocale (LC_ALL, "");
    bindtextdomain (PACKAGE, LOCALEDIR);
    textdomain (PACKAGE);
#endif

    optCon = poptGetContext("whiptail", argc, argv, optionsTable, 0);

    while ((arg = poptGetNextOpt(optCon)) > 0) {
	optArg = poptGetOptArg(optCon);

	switch (arg) {
	  case OPT_INFOBOX:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_INFOBOX;
	    break;

	  case OPT_MENU:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_MENU;
	    break;

	  case OPT_MSGBOX:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_MSGBOX;
	    break;

	  case OPT_TEXTBOX:
    	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_TEXTBOX;
	    break;

	  case OPT_PASSWORDBOX:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_PASSWORDBOX;
	    break;

	  case OPT_RADIOLIST:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_RADIOLIST;
	    break;

	  case OPT_CHECKLIST:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_CHECKLIST;
	    break;

	  case OPT_FULLBUTTONS:
	    fullButtons = 1;
	    useFullButtons(1);
	    break;

	  case OPT_YESNO:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_YESNO;
	    break;

	  case OPT_GAUGE:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_GAUGE;
	    break;

	  case OPT_INPUTBOX:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_INPUTBOX;
	    break;
	}
    }
    
    if (help) {
	    usage(NO_ERROR);
	    exit(0);
    }
    if (version) {
	    print_version();
	    exit(0);
    }
    
    if (arg < -1) {
	fprintf(stderr, "%s: %s\n", 
		poptBadOption(optCon, POPT_BADOPTION_NOALIAS), 
		poptStrerror(arg));
	exit(1);
    }

    output = fdopen (outputfd, "w");
    if (output == NULL ) {
        perror ("Cannot open output-fd\n");
        exit (DLG_ERROR);
    }

    if (mode == MODE_NONE) usage(WAS_ERROR);

    if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
    text = strdup(nextArg);

    if  (mode == MODE_TEXTBOX ) text = readTextFile(text);

    if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
    height = strtoul(nextArg, &end, 10);
    if (*end) usage(WAS_ERROR);

    if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
    width = strtoul(nextArg, &end, 10);
    if (*end) usage(WAS_ERROR);

    if (mode == MODE_GAUGE) {
	fd = dup(0);
	close(0);
	if (open("/dev/tty", O_RDWR) != 0) perror("open /dev/tty");
    }

    memset(&sa, 0, sizeof(sa));
    sa.sa_handler = handleSighup;
    sigaction(SIGWINCH, &sa, NULL);

    newtInit();
    newtCls();

    cleanNewlines(text);

    if ( height <= 0 || width <= 0 )
       guessSize(&height, &width, mode, &flags, fullButtons, title, text,
                 optCon);

    width -= 2;
    height -= 2;

    newtOpenWindow(topLeft ? 1 : (SLtt_Screen_Cols - width) / 2,
		   topLeft ? 1 : (SLtt_Screen_Rows - height) / 2, width, height, title);
    if (backtitle)
	newtDrawRootText(0, 0, backtitle);

    if (ok_button)
	setButtonText(ok_button, BUTTON_OK);
    if (cancel_button)
	setButtonText(cancel_button, BUTTON_CANCEL);
    if (yes_button)
	setButtonText(yes_button, BUTTON_YES);
    if (no_button)
	setButtonText(no_button, BUTTON_NO);

    if (noCancel) flags |= FLAG_NOCANCEL;
    if (noItem) flags |= FLAG_NOITEM;
    if (noTags) flags |= FLAG_NOTAGS;
    if (scrollText) flags |= FLAG_SCROLL_TEXT;
    if (defaultNo) flags |= FLAG_DEFAULT_NO;

    switch (mode) {
      case MODE_MSGBOX:
      case MODE_TEXTBOX:
	rc = messageBox(text, height, width, MSGBOX_MSG, flags);
	break;

      case MODE_INFOBOX:
	rc = messageBox(text, height, width, MSGBOX_INFO, flags);
	break;

      case MODE_YESNO:
	rc = messageBox(text, height, width, MSGBOX_YESNO, flags);
	break;

      case MODE_INPUTBOX:
	rc = inputBox(text, height, width, optCon, flags, &result);
	if (rc == DLG_OKAY) fprintf(output, "%s", result);
	break;

      case MODE_PASSWORDBOX:
	rc = inputBox(text, height, width, optCon, flags | FLAG_PASSWORD,
	      &result);
	if (rc == DLG_OKAY) fprintf (output, "%s", result);
	break;

      case MODE_MENU:
	rc = listBox(text, height, width, optCon, flags, default_item, &result);
	if (rc == DLG_OKAY) fprintf(output, "%s", result);
	break;

      case MODE_RADIOLIST:
	rc = checkList(text, height, width, optCon, 1, flags, &selections);
	if (rc == DLG_OKAY) {
	    if (selections[0])
		fprintf(output, "%s", selections[0]);
	    free(selections);
	}
	break;

      case MODE_CHECKLIST:
	rc = checkList(text, height, width, optCon, 0, flags, &selections);

	if (!rc) {
	    for (next = selections; *next; next++) {
		if (!separateOutput) {
		    if (needSpace) putc(' ', output);
		    fprintf(output, "\"%s\"", *next);
		    needSpace = 1;
		} else {
		    fprintf(output, "%s\n", *next);
		}
	    }

	    free(selections);
	}
	break;

      case MODE_GAUGE:
	rc = gauge(text, height, width, optCon, fd, flags);
	break;

      default:
	usage(WAS_ERROR);
    }

    if (rc == DLG_ERROR) usage(WAS_ERROR);

    if (clear)
	newtPopWindow();
    newtFinished();

    return ( rc == DLG_ESCAPE ) ? -1 : rc;
}
Commit	Line	Data
feef2cb5	1	#include "config.h"
9be6d60e	2	#include <fcntl.h>
6c049389	3	#include <popt.h>
9be6d60e	4	#include <stdio.h>
	5	#include <string.h>
	6	#include <stdlib.h>
feef2cb5	7	#include <signal.h>
9be6d60e	8	#include <unistd.h>
feef2cb5	9	#include <wchar.h>
feef2cb5	10	#include <slang.h>
9be6d60e	11
feef2cb5	12	#include "nls.h"
649a0152	13	#include "dialogboxes.h"
9be6d60e	14	#include "newt.h"
feef2cb5	15	#include "newt_pr.h"
	16
	17	enum { NO_ERROR = 0, WAS_ERROR = 1 };
9be6d60e	18
139f06bc	19	enum mode { MODE_NONE, MODE_INFOBOX, MODE_MSGBOX, MODE_YESNO, MODE_CHECKLIST,
feef2cb5	20	MODE_INPUTBOX, MODE_RADIOLIST, MODE_MENU, MODE_GAUGE ,
feef2cb5	21	MODE_TEXTBOX, MODE_PASSWORDBOX};
9be6d60e	22
6f481af2	23	#define OPT_MSGBOX 1000
	24	#define OPT_CHECKLIST 1001
	25	#define OPT_YESNO 1002
	26	#define OPT_INPUTBOX 1003
	27	#define OPT_FULLBUTTONS 1004
	28	#define OPT_MENU 1005
	29	#define OPT_RADIOLIST 1006
	30	#define OPT_GAUGE 1007
	31	#define OPT_INFOBOX 1008
feef2cb5	32	#define OPT_TEXTBOX 1009
	33	#define OPT_PASSWORDBOX 1010
	34
	35	static void usage(int err) {
	36	newtFinished();
	37	fprintf (err ? stderr : stdout,
	38	_("Box options: \n"
	39	"\t--msgbox <text> <height> <width>\n"
	40	"\t--yesno <text> <height> <width>\n"
	41	"\t--infobox <text> <height> <width>\n"
	42	"\t--inputbox <text> <height> <width> [init] \n"
	43	"\t--passwordbox <text> <height> <width> [init] \n"
	44	"\t--textbox <file> <height> <width>\n"
	45	"\t--menu <text> <height> <width> <listheight> [tag item] ...\n"
	46	"\t--checklist <text> <height> <width> <listheight> [tag item status]...\n"
30cfd38a	47	"\t--radiolist <text> <height> <width> <listheight> [tag item status]...\n"
feef2cb5	48	"\t--gauge <text> <height> <width> <percent>\n"
	49	"Options: (depend on box-option)\n"
	50	"\t--clear clear screen on exit\n"
45bffa7f	51	"\t--defaultno default no button\n"
feef2cb5	52	"\t--default-item <string> set default string\n"
	53	"\t--fb use full buttons\n"
	54	"\t--nocancel no cancel button\n"
60d3c50b	55	"\t--yes-button <text> set text of yes button\n"
	56	"\t--no-button <text> set text of no button\n"
	57	"\t--ok-button <text> set text of ok button\n"
	58	"\t--cancel-button <text> set text of cancel button\n"
feef2cb5	59	"\t--noitem display tags only\n"
f0e9344a	60	"\t--separate-output output one line at a time\n"
feef2cb5	61	"\t--output-fd <fd> output to fd, not stdout\n"
	62	"\t--title <title> display title\n"
	63	"\t--backtitle <backtitle> display backtitle\n"
45bffa7f	64	"\t--scrolltext force verical scrollbars\n"
45bffa7f	65	"\t--topleft put window in top-left corner\n\n"));
feef2cb5	66	exit(err ? DLG_ERROR : 0 );
	67	}
	68
	69	static void print_version(void) {
	70	fprintf (stdout, _("whiptail (newt): %s\n"), VERSION);
	71	}
	72
	73	static void handleSighup(int signum) {
	74	exit(DLG_ERROR);
	75	}
	76
	77	#if 0
	78	/* FIXME Copied from newt.c
	79	* Place somewhere better -- dialogboxes? -- amck
	80	*/
	81	int wstrlen(const char *str, int len) {
	82	mbstate_t ps;
	83	wchar_t tmp;
	84	int nchars = 0;
	85
	86	if (!str) return 0;
	87	if (!len) return 0;
	88	if (len < 0) len = strlen(str);
	89	memset(&ps,0,sizeof(mbstate_t));
	90	while (len > 0) {
	91	int x,y;
	92
	93	x = mbrtowc(&tmp,str,len,&ps);
	94	if (x >0) {
	95	str += x;
	96	len -= x;
	97	y = wcwidth(tmp);
	98	if (y>0)
	99	nchars+=y;
	100	} else break;
	101	}
	102	return nchars;
	103	}
	104	#endif
	105
	106	/*
	107	* The value of *width is increased if it is not as large as the width of
	108	* the line.
	109	*/
	110	static const char * lineWidth(int * width, const char * line, int *chrs)
	111	{
	112	const char * s = line;
	113
	114	if ( line == NULL )
	115	return 0;
	116
	117	while ( s != '\0' && s != '\n' )
	118	s++;
	119
	120	if ( *s == '\n' )
	121	s++;
	122
	123	*chrs = _newt_wstrlen (line, s - line );
	124	width = max(width, *chrs);
9be6d60e	125
feef2cb5	126	return s;
	127	}
	128
	129
	130	/*
	131	* cleanNewlines
	132	* Handle newlines in text. Hack.
	133	*/
	134	void cleanNewlines (char *text)
	135	{
	136	char *p = text;
	137	while (*p) {
	138	if ((p == '\\') && ((p+1) == 'n')) {
	139	*p = '\n';
	140	*(p+1) = ' ';
	141	} else {
	142	p++;
	143	}
	144	}
	145	}
	146
	147	/*
	148	* The height of a text string is added to height, and width is increased
	149	* if it is not big enough to store the text string.
	150	*/
	151	static const char * textSize(int * height, int * width,
	152	int maxWidth,
	153	const char * text)
	154	{
	155	int h = 0;
	156	int w = 0;
	157	int chrs = 0;
	158
	159
	160	if ( text == NULL )
	161	return 0;
	162
	163	while ( *text != '\0' ) {
	164	h++;
	165	text = lineWidth(width, text, &chrs);
	166	/* Allow for text overflowing. May overestimate a bit */
	167	h += chrs / maxWidth;
	168	}
	169
	170	h += 2;
	171	w += 2;
	172
	173	*height += h;
	174	*width += w;
	175
	176	width = min(width, maxWidth);
	177	return text;
	178	}
	179
	180	/*
	181	* Add space for buttons.
	182	* NOTE: when this is internationalized, the button width might change.
	183	*/
	184	static void spaceForButtons(int * height, int * width, int count, int full) {
	185	/* Make space for the buttons */
	186	if ( full ) {
	187	*height += 4;
	188	if ( count == 1 )
	189	width = max(width, 7);
190	else
191	width = max(width, 20);
192	}
193	else {
194	*height += 2;
195	if ( count == 1 )
196	width = max(width, 7);
197	else
198	width = max(width, 19);
199	}
200	}
201
202	static int menuSize(int * height, int * width, enum mode mode,
203	poptContext options) {
c00a8d1b	204	const char ** argv = poptGetArgs(options);
c00a8d1b	205	const char ** items = argv;
feef2cb5	206	int h = 0;
	207	int tagWidth = 0;
	208	int descriptionWidth = 0;
	209	int overhead = 10;
	210	static char buf[20];
	211
	212	if ( argv == 0 \|\| *argv == 0 )
	213	return 0;
	214
	215	argv++;
	216	if ( mode == MODE_MENU )
	217	overhead = 5;
	218
	219	while ( argv[0] != 0 && argv[1] ) {
	220	tagWidth = max(tagWidth, strlen(argv[0]));
	221	descriptionWidth = max(descriptionWidth, strlen(argv[1]));
	222
	223	if ( mode == MODE_MENU )
	224	argv += 2;
	225	else
	226	argv += 3;
	227	h++;
	228	}
	229
	230	width = max(width, tagWidth + descriptionWidth + overhead);
	231	width = min(width, SLtt_Screen_Cols);
	232
	233	h = min(h, SLtt_Screen_Rows - *height - 4);
	234	height = height + h + 1;
	235	sprintf(buf, "%d", h);
	236	*items = buf;
	237	return 0;
	238	}
	239
	240	/*
	241	* Guess the size of a window, given what will be displayed within it.
	242	*/
	243	static void guessSize(int * height, int * width, enum mode mode,
	244	int * flags, int fullButtons,
	245	const char * title, const char * text,
	246	poptContext options) {
	247
	248	int w = 0, h = 0, chrs = 0;
	249
	250	textSize(&h, &w, SLtt_Screen_Cols -4 , text); /* Width and height for text */
	251	lineWidth(&w, title, &chrs); /* Width for title */
	252
	253	if ( w > 0 )
	254	w += 4;
	255
	256	switch ( mode ) {
	257	case MODE_CHECKLIST:
	258	case MODE_RADIOLIST:
	259	case MODE_MENU:
	260	spaceForButtons(&h, &w, *flags & FLAG_NOCANCEL ? 1 : 2,
	261	fullButtons);
	262	menuSize(&h, &w, mode, options);
	263	break;
	264	case MODE_YESNO:
	265	case MODE_MSGBOX:
	266	spaceForButtons(&h, &w, 1, fullButtons);
	267	break;
	268	case MODE_INPUTBOX:
	269	spaceForButtons(&h, &w, *flags & FLAG_NOCANCEL ? 1 : 2,
270	fullButtons);
271	h += 1;
272	break;
273	case MODE_GAUGE:
274	h += 2;
275	break;
276	case MODE_NONE:
277	break;
278	default:
279	break;
280	};
281
282	/*
283	* Fixed window-border overhead.
284	* NOTE: This will change if we add a way to turn off drop-shadow and/or
285	* box borders. That would be desirable for display-sized screens.
286	*/
287	w += 2;
288	h += 2;
289
290	if ( h > SLtt_Screen_Rows - 1 ) {
291	h = SLtt_Screen_Rows - 1;
292	*flags \|= FLAG_SCROLL_TEXT;
293	w += 2; /* Add width of slider - is this right? */
294	}
295
296	width = min(max(width, w), SLtt_Screen_Cols);
297	height = max(height, h);
9be6d60e	298	}
9be6d60e	299
585f5503	300	char *
	301	readTextFile(const char * filename)
	302	{
	303	int fd = open(filename, O_RDONLY, 0);
	304	struct stat s;
	305	char * buf;
	306
	307	if ( fd < 0 \|\| fstat(fd, &s) != 0 ) {
	308	perror(filename);
	309	exit(DLG_ERROR);
	310	}
	311
	312	if ( (buf = malloc(s.st_size)) == 0 )
feef2cb5	313	fprintf(stderr, _("%s: too large to display.\n"), filename);
585f5503	314
	315	if ( read(fd, buf, s.st_size) != s.st_size ) {
	316	perror(filename);
	317	exit(DLG_ERROR);
	318	}
	319	close(fd);
	320	return buf;
	321	}
	322
eb0a0545	323	int main(int argc, const char ** argv) {
9be6d60e	324	enum mode mode = MODE_NONE;
	325	poptContext optCon;
	326	int arg;
eb0a0545	327	const char * optArg;
feef2cb5	328	char * text;
eb0a0545	329	const char * nextArg;
9be6d60e	330	char * end;
feef2cb5	331	struct sigaction sa;
9be6d60e	332	int height;
9be6d60e	333	int width;
649a0152	334	int fd = -1;
649a0152	335	int needSpace = 0;
9be6d60e	336	int noCancel = 0;
57cb49e7	337	int noTags = 0;
9be6d60e	338	int noItem = 0;
	339	int clear = 0;
	340	int scrollText = 0;
feef2cb5	341	int rc = DLG_CANCEL;
9be6d60e	342	int flags = 0;
ff3d94b9	343	int defaultNo = 0;
9be6d60e	344	int separateOutput = 0;
feef2cb5	345	int fullButtons = 0;
9623bfae	346	int outputfd = 2;
45bffa7f	347	int topLeft = 0;
9623bfae	348	FILE *output = stderr;
d78245ab	349	const char * result;
d78245ab	350	const char selections, next;
9be6d60e	351	char * title = NULL;
feef2cb5	352	char *default_item = NULL;
9be6d60e	353	char * backtitle = NULL;
60d3c50b	354	char * yes_button = NULL;
	355	char * no_button = NULL;
	356	char * ok_button = NULL;
	357	char * cancel_button = NULL;
feef2cb5	358	int help = 0, version = 0;
9be6d60e	359	struct poptOption optionsTable[] = {
6f481af2	360	{ "backtitle", '\0', POPT_ARG_STRING, &backtitle, 0 },
	361	{ "checklist", '\0', 0, 0, OPT_CHECKLIST },
	362	{ "clear", '\0', 0, &clear, 0 },
	363	{ "defaultno", '\0', 0, &defaultNo, 0 },
	364	{ "inputbox", '\0', 0, 0, OPT_INPUTBOX },
	365	{ "fb", '\0', 0, 0, OPT_FULLBUTTONS },
	366	{ "fullbuttons", '\0', 0, 0, OPT_FULLBUTTONS },
	367	{ "gauge", '\0', 0, 0, OPT_GAUGE },
	368	{ "infobox", '\0', 0, 0, OPT_INFOBOX },
	369	{ "menu", '\0', 0, 0, OPT_MENU },
	370	{ "msgbox", '\0', 0, 0, OPT_MSGBOX },
	371	{ "nocancel", '\0', 0, &noCancel, 0 },
	372	{ "noitem", '\0', 0, &noItem, 0 },
feef2cb5	373	{ "default-item", '\0', POPT_ARG_STRING, &default_item, 0},
6f481af2	374	{ "notags", '\0', 0, &noTags, 0 },
	375	{ "radiolist", '\0', 0, 0, OPT_RADIOLIST },
	376	{ "scrolltext", '\0', 0, &scrollText, 0 },
	377	{ "separate-output", '\0', 0, &separateOutput, 0 },
	378	{ "title", '\0', POPT_ARG_STRING, &title, 0 },
6f481af2	379	{ "textbox", '\0', 0, 0, OPT_TEXTBOX },
45bffa7f	380	{ "topleft", '\0', 0, &topLeft, 0 },
feef2cb5	381	{ "yesno", '\0', 0, 0, OPT_YESNO },
	382	{ "passwordbox", '\0', 0, 0, OPT_PASSWORDBOX },
	383	{ "output-fd", '\0', POPT_ARG_INT, &outputfd, 0 },
60d3c50b	384	{ "yes-button", '\0', POPT_ARG_STRING, &yes_button, 0},
	385	{ "no-button", '\0', POPT_ARG_STRING, &no_button, 0},
	386	{ "ok-button", '\0', POPT_ARG_STRING, &ok_button, 0},
	387	{ "cancel-button", '\0', POPT_ARG_STRING, &cancel_button, 0},
feef2cb5	388	{ "help", 'h', 0, &help, 0, NULL, NULL },
feef2cb5	389	{ "version", 'v', 0, &version, 0, NULL, NULL },
6f481af2	390	{ 0, 0, 0, 0, 0 }
9be6d60e	391	};
feef2cb5	392
970ce9d5	393	#ifdef ENABLE_NLS
feef2cb5	394	setlocale (LC_ALL, "");
	395	bindtextdomain (PACKAGE, LOCALEDIR);
	396	textdomain (PACKAGE);
970ce9d5	397	#endif
feef2cb5	398
649a0152	399	optCon = poptGetContext("whiptail", argc, argv, optionsTable, 0);
9be6d60e	400
9be6d60e	401	while ((arg = poptGetNextOpt(optCon)) > 0) {
6f481af2	402	optArg = poptGetOptArg(optCon);
	403
	404	switch (arg) {
	405	case OPT_INFOBOX:
feef2cb5	406	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	407	mode = MODE_INFOBOX;
	408	break;
	409
	410	case OPT_MENU:
feef2cb5	411	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	412	mode = MODE_MENU;
	413	break;
	414
	415	case OPT_MSGBOX:
feef2cb5	416	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	417	mode = MODE_MSGBOX;
6f481af2	418	break;
feef2cb5	419
	420	case OPT_TEXTBOX:
	421	if (mode != MODE_NONE) usage(WAS_ERROR);
	422	mode = MODE_TEXTBOX;
	423	break;
	424
	425	case OPT_PASSWORDBOX:
	426	if (mode != MODE_NONE) usage(WAS_ERROR);
	427	mode = MODE_PASSWORDBOX;
	428	break;
	429
6f481af2	430	case OPT_RADIOLIST:
feef2cb5	431	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	432	mode = MODE_RADIOLIST;
	433	break;
	434
	435	case OPT_CHECKLIST:
feef2cb5	436	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	437	mode = MODE_CHECKLIST;
	438	break;
	439
	440	case OPT_FULLBUTTONS:
feef2cb5	441	fullButtons = 1;
6f481af2	442	useFullButtons(1);
	443	break;
	444
	445	case OPT_YESNO:
feef2cb5	446	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	447	mode = MODE_YESNO;
	448	break;
	449
	450	case OPT_GAUGE:
feef2cb5	451	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	452	mode = MODE_GAUGE;
	453	break;
	454
	455	case OPT_INPUTBOX:
feef2cb5	456	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	457	mode = MODE_INPUTBOX;
	458	break;
	459	}
9be6d60e	460	}
9be6d60e	461
feef2cb5	462	if (help) {
	463	usage(NO_ERROR);
	464	exit(0);
	465	}
	466	if (version) {
	467	print_version();
	468	exit(0);
	469	}
	470
9be6d60e	471	if (arg < -1) {
6f481af2	472	fprintf(stderr, "%s: %s\n",
	473	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	474	poptStrerror(arg));
	475	exit(1);
9be6d60e	476	}
9be6d60e	477
9623bfae	478	output = fdopen (outputfd, "w");
	479	if (output == NULL ) {
	480	perror ("Cannot open output-fd\n");
	481	exit (DLG_ERROR);
	482	}
	483
feef2cb5	484	if (mode == MODE_NONE) usage(WAS_ERROR);
9be6d60e	485
c00a8d1b	486	if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
c00a8d1b	487	text = strdup(nextArg);
9be6d60e	488
feef2cb5	489	if (mode == MODE_TEXTBOX ) text = readTextFile(text);
585f5503	490
feef2cb5	491	if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
9be6d60e	492	height = strtoul(nextArg, &end, 10);
feef2cb5	493	if (*end) usage(WAS_ERROR);
9be6d60e	494
feef2cb5	495	if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
9be6d60e	496	width = strtoul(nextArg, &end, 10);
feef2cb5	497	if (*end) usage(WAS_ERROR);
9be6d60e	498
9be6d60e	499	if (mode == MODE_GAUGE) {
6f481af2	500	fd = dup(0);
	501	close(0);
	502	if (open("/dev/tty", O_RDWR) != 0) perror("open /dev/tty");
9be6d60e	503	}
9be6d60e	504
feef2cb5	505	memset(&sa, 0, sizeof(sa));
	506	sa.sa_handler = handleSighup;
	507	sigaction(SIGWINCH, &sa, NULL);
	508
9be6d60e	509	newtInit();
9be6d60e	510	newtCls();
feef2cb5	511
	512	cleanNewlines(text);
	513
	514	if ( height <= 0 \|\| width <= 0 )
	515	guessSize(&height, &width, mode, &flags, fullButtons, title, text,
	516	optCon);
	517
9be6d60e	518	width -= 2;
9be6d60e	519	height -= 2;
9be6d60e	520
45bffa7f	521	newtOpenWindow(topLeft ? 1 : (SLtt_Screen_Cols - width) / 2,
45bffa7f	522	topLeft ? 1 : (SLtt_Screen_Rows - height) / 2, width, height, title);
9be6d60e	523	if (backtitle)
6f481af2	524	newtDrawRootText(0, 0, backtitle);
9be6d60e	525
60d3c50b	526	if (ok_button)
	527	setButtonText(ok_button, BUTTON_OK);
	528	if (cancel_button)
	529	setButtonText(cancel_button, BUTTON_CANCEL);
	530	if (yes_button)
	531	setButtonText(yes_button, BUTTON_YES);
	532	if (no_button)
	533	setButtonText(no_button, BUTTON_NO);
	534
9be6d60e	535	if (noCancel) flags \|= FLAG_NOCANCEL;
9be6d60e	536	if (noItem) flags \|= FLAG_NOITEM;
57cb49e7	537	if (noTags) flags \|= FLAG_NOTAGS;
9be6d60e	538	if (scrollText) flags \|= FLAG_SCROLL_TEXT;
ff3d94b9	539	if (defaultNo) flags \|= FLAG_DEFAULT_NO;
9be6d60e	540
	541	switch (mode) {
	542	case MODE_MSGBOX:
585f5503	543	case MODE_TEXTBOX:
6f481af2	544	rc = messageBox(text, height, width, MSGBOX_MSG, flags);
6f481af2	545	break;
9be6d60e	546
139f06bc	547	case MODE_INFOBOX:
6f481af2	548	rc = messageBox(text, height, width, MSGBOX_INFO, flags);
6f481af2	549	break;
139f06bc	550
9be6d60e	551	case MODE_YESNO:
6f481af2	552	rc = messageBox(text, height, width, MSGBOX_YESNO, flags);
6f481af2	553	break;
9be6d60e	554
9be6d60e	555	case MODE_INPUTBOX:
6f481af2	556	rc = inputBox(text, height, width, optCon, flags, &result);
feef2cb5	557	if (rc == DLG_OKAY) fprintf(output, "%s", result);
	558	break;
	559
	560	case MODE_PASSWORDBOX:
	561	rc = inputBox(text, height, width, optCon, flags \| FLAG_PASSWORD,
	562	&result);
	563	if (rc == DLG_OKAY) fprintf (output, "%s", result);
6f481af2	564	break;
9be6d60e	565
9be6d60e	566	case MODE_MENU:
feef2cb5	567	rc = listBox(text, height, width, optCon, flags, default_item, &result);
6f481af2	568	if (rc == DLG_OKAY) fprintf(output, "%s", result);
6f481af2	569	break;
9be6d60e	570
9be6d60e	571	case MODE_RADIOLIST:
6f481af2	572	rc = checkList(text, height, width, optCon, 1, flags, &selections);
feef2cb5	573	if (rc == DLG_OKAY) {
5dd92b24	574	if (selections[0])
5dd92b24	575	fprintf(output, "%s", selections[0]);
6f481af2	576	free(selections);
	577	}
	578	break;
9be6d60e	579
9be6d60e	580	case MODE_CHECKLIST:
6f481af2	581	rc = checkList(text, height, width, optCon, 0, flags, &selections);
	582
	583	if (!rc) {
	584	for (next = selections; *next; next++) {
	585	if (!separateOutput) {
	586	if (needSpace) putc(' ', output);
	587	fprintf(output, "\"%s\"", *next);
	588	needSpace = 1;
	589	} else {
	590	fprintf(output, "%s\n", *next);
	591	}
	592	}
	593
	594	free(selections);
	595	}
	596	break;
9be6d60e	597
9be6d60e	598	case MODE_GAUGE:
6f481af2	599	rc = gauge(text, height, width, optCon, fd, flags);
6f481af2	600	break;
9be6d60e	601
9be6d60e	602	default:
feef2cb5	603	usage(WAS_ERROR);
9be6d60e	604	}
9be6d60e	605
feef2cb5	606	if (rc == DLG_ERROR) usage(WAS_ERROR);
649a0152	607
9be6d60e	608	if (clear)
6f481af2	609	newtPopWindow();
9be6d60e	610	newtFinished();
9be6d60e	611
feef2cb5	612	return ( rc == DLG_ESCAPE ) ? -1 : rc;
9be6d60e	613	}