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Commit | Line | Data |
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0a9064fb MY |
1 | /* |
2 | * yesno.c -- implements the yes/no box | |
3 | * | |
4 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) | |
5 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) | |
6 | * | |
5b8031cc | 7 | * SPDX-License-Identifier: GPL-2.0+ |
0a9064fb MY |
8 | */ |
9 | ||
10 | #include "dialog.h" | |
11 | ||
12 | /* | |
13 | * Display termination buttons | |
14 | */ | |
15 | static void print_buttons(WINDOW * dialog, int height, int width, int selected) | |
16 | { | |
17 | int x = width / 2 - 10; | |
18 | int y = height - 2; | |
19 | ||
20 | print_button(dialog, gettext(" Yes "), y, x, selected == 0); | |
21 | print_button(dialog, gettext(" No "), y, x + 13, selected == 1); | |
22 | ||
23 | wmove(dialog, y, x + 1 + 13 * selected); | |
24 | wrefresh(dialog); | |
25 | } | |
26 | ||
27 | /* | |
28 | * Display a dialog box with two buttons - Yes and No | |
29 | */ | |
30 | int dialog_yesno(const char *title, const char *prompt, int height, int width) | |
31 | { | |
32 | int i, x, y, key = 0, button = 0; | |
33 | WINDOW *dialog; | |
34 | ||
35 | do_resize: | |
36 | if (getmaxy(stdscr) < (height + YESNO_HEIGTH_MIN)) | |
37 | return -ERRDISPLAYTOOSMALL; | |
38 | if (getmaxx(stdscr) < (width + YESNO_WIDTH_MIN)) | |
39 | return -ERRDISPLAYTOOSMALL; | |
40 | ||
41 | /* center dialog box on screen */ | |
42 | x = (getmaxx(stdscr) - width) / 2; | |
43 | y = (getmaxy(stdscr) - height) / 2; | |
44 | ||
45 | draw_shadow(stdscr, y, x, height, width); | |
46 | ||
47 | dialog = newwin(height, width, y, x); | |
48 | keypad(dialog, TRUE); | |
49 | ||
50 | draw_box(dialog, 0, 0, height, width, | |
51 | dlg.dialog.atr, dlg.border.atr); | |
52 | wattrset(dialog, dlg.border.atr); | |
53 | mvwaddch(dialog, height - 3, 0, ACS_LTEE); | |
54 | for (i = 0; i < width - 2; i++) | |
55 | waddch(dialog, ACS_HLINE); | |
56 | wattrset(dialog, dlg.dialog.atr); | |
57 | waddch(dialog, ACS_RTEE); | |
58 | ||
59 | print_title(dialog, title, width); | |
60 | ||
61 | wattrset(dialog, dlg.dialog.atr); | |
62 | print_autowrap(dialog, prompt, width - 2, 1, 3); | |
63 | ||
64 | print_buttons(dialog, height, width, 0); | |
65 | ||
66 | while (key != KEY_ESC) { | |
67 | key = wgetch(dialog); | |
68 | switch (key) { | |
69 | case 'Y': | |
70 | case 'y': | |
71 | delwin(dialog); | |
72 | return 0; | |
73 | case 'N': | |
74 | case 'n': | |
75 | delwin(dialog); | |
76 | return 1; | |
77 | ||
78 | case TAB: | |
79 | case KEY_LEFT: | |
80 | case KEY_RIGHT: | |
81 | button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button); | |
82 | ||
83 | print_buttons(dialog, height, width, button); | |
84 | wrefresh(dialog); | |
85 | break; | |
86 | case ' ': | |
87 | case '\n': | |
88 | delwin(dialog); | |
89 | return button; | |
90 | case KEY_ESC: | |
91 | key = on_key_esc(dialog); | |
92 | break; | |
93 | case KEY_RESIZE: | |
94 | delwin(dialog); | |
95 | on_key_resize(); | |
96 | goto do_resize; | |
97 | } | |
98 | } | |
99 | ||
100 | delwin(dialog); | |
101 | return key; /* ESC pressed */ | |
102 | } |