1/*
2 *  prgbox.c -- implements the message box and info box
3 *
4 *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
5 *
6 *  This program is free software; you can redistribute it and/or
7 *  modify it under the terms of the GNU General Public License
8 *  as published by the Free Software Foundation; either version 2
9 *  of the License, or (at your option) any later version.
10 *
11 *  This program is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *  GNU General Public License for more details.
15 *
16 *  You should have received a copy of the GNU General Public License
17 *  along with this program; if not, write to the Free Software
18 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21#include <sys/cdefs.h>
22__FBSDID("$FreeBSD$");
23
24#include <sys/types.h>
25
26#include <dialog.h>
27#include <errno.h>
28#include <sys/wait.h>
29#include "dialog.priv.h"
30
31/*
32 * Display a message box. Program will pause and display an "OK" button
33 * if the parameter 'pause' is non-zero.
34 */
35int dialog_prgbox(unsigned char *title, const unsigned char *line, int height, int width, int pause, int use_shell)
36{
37  int i, x, y, key = 0;
38  WINDOW *dialog;
39  FILE *f;
40  const unsigned char *name;
41  unsigned char *s, buf[MAX_LEN];
42  int status;
43
44  if (height < 0 || width < 0) {
45    endwin();
46    fprintf(stderr, "\nAutosizing is impossible in dialog_prgbox().\n");
47    exit(-1);
48  }
49  width = MAX(width,10);
50
51  if (width > COLS)
52	width = COLS;
53  if (height > LINES)
54	height = LINES;
55  /* center dialog box on screen */
56  x = DialogX ? DialogX : (COLS - width)/2;
57  y = DialogY ? DialogY : (LINES - height)/2;
58
59#ifdef HAVE_NCURSES
60  if (use_shadow)
61    draw_shadow(stdscr, y, x, height, width);
62#endif
63  dialog = newwin(height, width, y, x);
64  if (dialog == NULL) {
65    endwin();
66    fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height,width,y,x);
67    exit(1);
68  }
69  keypad(dialog, TRUE);
70
71  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
72
73  if (title != NULL) {
74    wattrset(dialog, title_attr);
75    wmove(dialog, 0, (width - strlen(title))/2 - 1);
76    waddch(dialog, ' ');
77    waddstr(dialog, title);
78    waddch(dialog, ' ');
79  }
80  wattrset(dialog, dialog_attr);
81  wmove(dialog, 1, 2);
82
83  if (!use_shell) {
84    char cmdline[MAX_LEN];
85    char *av[51], **ap = av, *val, *p;
86
87    strcpy(cmdline, line);
88    p = cmdline;
89    while ((val = strsep(&p," \t")) != NULL) {
90      if (*val != '\0')
91	*ap++ = val;
92    }
93    *ap = NULL;
94    f = raw_popen(name = av[0], av, "r");
95  } else
96    f = raw_popen(name = line, NULL, "r");
97
98  status = -1;
99  if (f == NULL) {
100  err:
101      sprintf(buf, "%s: %s\n", name, strerror(errno));
102  prr:
103      print_autowrap(dialog, buf, height-(pause?3:1), width-2, width, 1, 2, FALSE, TRUE);
104      wrefresh(dialog);
105  } else {
106    while (fgets(buf, sizeof(buf), f) != NULL) {
107      i = strlen(buf);
108      if (buf[i-1] == '\n')
109	buf[i-1] = '\0';
110      s = buf;
111      while ((s = strchr(s, '\t')) != NULL)
112	*s++ = ' ';
113      print_autowrap(dialog, buf, height-(pause?3:1), width-2, width, 1, 2, FALSE, TRUE);
114      print_autowrap(dialog, "\n", height-(pause?3:1), width-2, width, 1, 2, FALSE, FALSE);
115      wrefresh(dialog);
116    }
117    if ((status = raw_pclose(f)) == -1)
118      goto err;
119    if (WIFEXITED(status) && WEXITSTATUS(status) == 127) {
120      sprintf(buf, "%s: program not found\n", name);
121      goto prr;
122    }
123  }
124
125  if (pause) {
126    wattrset(dialog, border_attr);
127    wmove(dialog, height-3, 0);
128    waddch(dialog, ACS_LTEE);
129    for (i = 0; i < width-2; i++)
130      waddch(dialog, ACS_HLINE);
131    wattrset(dialog, dialog_attr);
132    waddch(dialog, ACS_RTEE);
133    wmove(dialog, height-2, 1);
134    for (i = 0; i < width-2; i++)
135    waddch(dialog, ' ');
136    display_helpline(dialog, height-1, width);
137    print_button(dialog, "  OK  ", height-2, width/2-6, TRUE);
138    wrefresh(dialog);
139    while (key != ESC && key != '\n' && key != ' ' && key != '\r')
140      key = wgetch(dialog);
141    if (key == '\r')
142      key = '\n';
143  }
144  else {
145    key = '\n';
146    wrefresh(dialog);
147  }
148
149  delwin(dialog);
150  return (status);
151}
152/* End of dialog_msgbox() */
153