1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0+
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * yesno.c -- implements the yes/no box
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
6*4882a593Smuzhiyun * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include "dialog.h"
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun /*
12*4882a593Smuzhiyun * Display termination buttons
13*4882a593Smuzhiyun */
print_buttons(WINDOW * dialog,int height,int width,int selected)14*4882a593Smuzhiyun static void print_buttons(WINDOW * dialog, int height, int width, int selected)
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun int x = width / 2 - 10;
17*4882a593Smuzhiyun int y = height - 2;
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun print_button(dialog, " Yes ", y, x, selected == 0);
20*4882a593Smuzhiyun print_button(dialog, " No ", y, x + 13, selected == 1);
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun wmove(dialog, y, x + 1 + 13 * selected);
23*4882a593Smuzhiyun wrefresh(dialog);
24*4882a593Smuzhiyun }
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun /*
27*4882a593Smuzhiyun * Display a dialog box with two buttons - Yes and No
28*4882a593Smuzhiyun */
dialog_yesno(const char * title,const char * prompt,int height,int width)29*4882a593Smuzhiyun int dialog_yesno(const char *title, const char *prompt, int height, int width)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun int i, x, y, key = 0, button = 0;
32*4882a593Smuzhiyun WINDOW *dialog;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun do_resize:
35*4882a593Smuzhiyun if (getmaxy(stdscr) < (height + YESNO_HEIGTH_MIN))
36*4882a593Smuzhiyun return -ERRDISPLAYTOOSMALL;
37*4882a593Smuzhiyun if (getmaxx(stdscr) < (width + YESNO_WIDTH_MIN))
38*4882a593Smuzhiyun return -ERRDISPLAYTOOSMALL;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun /* center dialog box on screen */
41*4882a593Smuzhiyun x = (getmaxx(stdscr) - width) / 2;
42*4882a593Smuzhiyun y = (getmaxy(stdscr) - height) / 2;
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun draw_shadow(stdscr, y, x, height, width);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun dialog = newwin(height, width, y, x);
47*4882a593Smuzhiyun keypad(dialog, TRUE);
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun draw_box(dialog, 0, 0, height, width,
50*4882a593Smuzhiyun dlg.dialog.atr, dlg.border.atr);
51*4882a593Smuzhiyun wattrset(dialog, dlg.border.atr);
52*4882a593Smuzhiyun mvwaddch(dialog, height - 3, 0, ACS_LTEE);
53*4882a593Smuzhiyun for (i = 0; i < width - 2; i++)
54*4882a593Smuzhiyun waddch(dialog, ACS_HLINE);
55*4882a593Smuzhiyun wattrset(dialog, dlg.dialog.atr);
56*4882a593Smuzhiyun waddch(dialog, ACS_RTEE);
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun print_title(dialog, title, width);
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun wattrset(dialog, dlg.dialog.atr);
61*4882a593Smuzhiyun print_autowrap(dialog, prompt, width - 2, 1, 3);
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun print_buttons(dialog, height, width, 0);
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun while (key != KEY_ESC) {
66*4882a593Smuzhiyun key = wgetch(dialog);
67*4882a593Smuzhiyun switch (key) {
68*4882a593Smuzhiyun case 'Y':
69*4882a593Smuzhiyun case 'y':
70*4882a593Smuzhiyun delwin(dialog);
71*4882a593Smuzhiyun return 0;
72*4882a593Smuzhiyun case 'N':
73*4882a593Smuzhiyun case 'n':
74*4882a593Smuzhiyun delwin(dialog);
75*4882a593Smuzhiyun return 1;
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun case TAB:
78*4882a593Smuzhiyun case KEY_LEFT:
79*4882a593Smuzhiyun case KEY_RIGHT:
80*4882a593Smuzhiyun button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun print_buttons(dialog, height, width, button);
83*4882a593Smuzhiyun wrefresh(dialog);
84*4882a593Smuzhiyun break;
85*4882a593Smuzhiyun case ' ':
86*4882a593Smuzhiyun case '\n':
87*4882a593Smuzhiyun delwin(dialog);
88*4882a593Smuzhiyun return button;
89*4882a593Smuzhiyun case KEY_ESC:
90*4882a593Smuzhiyun key = on_key_esc(dialog);
91*4882a593Smuzhiyun break;
92*4882a593Smuzhiyun case KEY_RESIZE:
93*4882a593Smuzhiyun delwin(dialog);
94*4882a593Smuzhiyun on_key_resize();
95*4882a593Smuzhiyun goto do_resize;
96*4882a593Smuzhiyun }
97*4882a593Smuzhiyun }
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun delwin(dialog);
100*4882a593Smuzhiyun return key; /* ESC pressed */
101*4882a593Smuzhiyun }
102