Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * inputbox.c -- implements the input box | |
3 | * | |
4 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) | |
5 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version 2 | |
10 | * of the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
21 | ||
22 | #include "dialog.h" | |
23 | ||
84c2a2eb | 24 | char dialog_input_result[MAX_LEN + 1]; |
1da177e4 LT |
25 | |
26 | /* | |
27 | * Print the termination buttons | |
28 | */ | |
b1c5f1c6 | 29 | static void print_buttons(WINDOW * dialog, int height, int width, int selected) |
1da177e4 | 30 | { |
b1c5f1c6 SR |
31 | int x = width / 2 - 11; |
32 | int y = height - 2; | |
1da177e4 | 33 | |
75c0a8a5 EG |
34 | print_button(dialog, gettext(" Ok "), y, x, selected == 0); |
35 | print_button(dialog, gettext(" Help "), y, x + 14, selected == 1); | |
1da177e4 | 36 | |
b1c5f1c6 SR |
37 | wmove(dialog, y, x + 1 + 14 * selected); |
38 | wrefresh(dialog); | |
1da177e4 LT |
39 | } |
40 | ||
41 | /* | |
42 | * Display a dialog box for inputing a string | |
43 | */ | |
dec69da8 | 44 | int dialog_inputbox(const char *title, const char *prompt, int height, int width, |
bb66fc67 | 45 | const char *init) |
1da177e4 | 46 | { |
b1c5f1c6 | 47 | int i, x, y, box_y, box_x, box_width; |
87727d45 WY |
48 | int input_x = 0, key = 0, button = -1; |
49 | int show_x, len, pos; | |
b1c5f1c6 SR |
50 | char *instr = dialog_input_result; |
51 | WINDOW *dialog; | |
52 | ||
c8dc68ad SR |
53 | if (!init) |
54 | instr[0] = '\0'; | |
55 | else | |
56 | strcpy(instr, init); | |
57 | ||
58 | do_resize: | |
851f6657 | 59 | if (getmaxy(stdscr) <= (height - INPUTBOX_HEIGTH_MIN)) |
c8dc68ad | 60 | return -ERRDISPLAYTOOSMALL; |
851f6657 | 61 | if (getmaxx(stdscr) <= (width - INPUTBOX_WIDTH_MIN)) |
c8dc68ad SR |
62 | return -ERRDISPLAYTOOSMALL; |
63 | ||
b1c5f1c6 | 64 | /* center dialog box on screen */ |
4f2de3e1 DG |
65 | x = (getmaxx(stdscr) - width) / 2; |
66 | y = (getmaxy(stdscr) - height) / 2; | |
b1c5f1c6 SR |
67 | |
68 | draw_shadow(stdscr, y, x, height, width); | |
69 | ||
70 | dialog = newwin(height, width, y, x); | |
71 | keypad(dialog, TRUE); | |
72 | ||
98e5a157 SR |
73 | draw_box(dialog, 0, 0, height, width, |
74 | dlg.dialog.atr, dlg.border.atr); | |
75 | wattrset(dialog, dlg.border.atr); | |
b1c5f1c6 SR |
76 | mvwaddch(dialog, height - 3, 0, ACS_LTEE); |
77 | for (i = 0; i < width - 2; i++) | |
78 | waddch(dialog, ACS_HLINE); | |
98e5a157 | 79 | wattrset(dialog, dlg.dialog.atr); |
b1c5f1c6 SR |
80 | waddch(dialog, ACS_RTEE); |
81 | ||
fa7009d5 | 82 | print_title(dialog, title, width); |
b1c5f1c6 | 83 | |
98e5a157 | 84 | wattrset(dialog, dlg.dialog.atr); |
b1c5f1c6 SR |
85 | print_autowrap(dialog, prompt, width - 2, 1, 3); |
86 | ||
87 | /* Draw the input field box */ | |
88 | box_width = width - 6; | |
89 | getyx(dialog, y, x); | |
90 | box_y = y + 2; | |
91 | box_x = (width - box_width) / 2; | |
98e5a157 | 92 | draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2, |
79d6e539 | 93 | dlg.dialog.atr, dlg.border.atr); |
b1c5f1c6 SR |
94 | |
95 | print_buttons(dialog, height, width, 0); | |
96 | ||
97 | /* Set up the initial value */ | |
98 | wmove(dialog, box_y, box_x); | |
98e5a157 | 99 | wattrset(dialog, dlg.inputbox.atr); |
b1c5f1c6 | 100 | |
87727d45 WY |
101 | len = strlen(instr); |
102 | pos = len; | |
b1c5f1c6 | 103 | |
87727d45 WY |
104 | if (len >= box_width) { |
105 | show_x = len - box_width + 1; | |
b1c5f1c6 SR |
106 | input_x = box_width - 1; |
107 | for (i = 0; i < box_width - 1; i++) | |
87727d45 | 108 | waddch(dialog, instr[show_x + i]); |
dec69da8 | 109 | } else { |
87727d45 WY |
110 | show_x = 0; |
111 | input_x = len; | |
b1c5f1c6 | 112 | waddstr(dialog, instr); |
dec69da8 | 113 | } |
b1c5f1c6 SR |
114 | |
115 | wmove(dialog, box_y, box_x + input_x); | |
116 | ||
117 | wrefresh(dialog); | |
118 | ||
f3cbcdc9 | 119 | while (key != KEY_ESC) { |
b1c5f1c6 SR |
120 | key = wgetch(dialog); |
121 | ||
122 | if (button == -1) { /* Input box selected */ | |
123 | switch (key) { | |
124 | case TAB: | |
125 | case KEY_UP: | |
126 | case KEY_DOWN: | |
127 | break; | |
b1c5f1c6 SR |
128 | case KEY_BACKSPACE: |
129 | case 127: | |
87727d45 | 130 | if (pos) { |
98e5a157 | 131 | wattrset(dialog, dlg.inputbox.atr); |
87727d45 WY |
132 | if (input_x == 0) { |
133 | show_x--; | |
b1c5f1c6 SR |
134 | } else |
135 | input_x--; | |
87727d45 WY |
136 | |
137 | if (pos < len) { | |
138 | for (i = pos - 1; i < len; i++) { | |
139 | instr[i] = instr[i+1]; | |
140 | } | |
141 | } | |
142 | ||
143 | pos--; | |
144 | len--; | |
145 | instr[len] = '\0'; | |
146 | wmove(dialog, box_y, box_x); | |
147 | for (i = 0; i < box_width; i++) { | |
148 | if (!instr[show_x + i]) { | |
149 | waddch(dialog, ' '); | |
150 | break; | |
151 | } | |
152 | waddch(dialog, instr[show_x + i]); | |
153 | } | |
b1c5f1c6 SR |
154 | wmove(dialog, box_y, input_x + box_x); |
155 | wrefresh(dialog); | |
156 | } | |
157 | continue; | |
87727d45 WY |
158 | case KEY_LEFT: |
159 | if (pos > 0) { | |
160 | if (input_x > 0) { | |
161 | wmove(dialog, box_y, --input_x + box_x); | |
162 | } else if (input_x == 0) { | |
163 | show_x--; | |
164 | wmove(dialog, box_y, box_x); | |
165 | for (i = 0; i < box_width; i++) { | |
166 | if (!instr[show_x + i]) { | |
167 | waddch(dialog, ' '); | |
168 | break; | |
169 | } | |
170 | waddch(dialog, instr[show_x + i]); | |
171 | } | |
172 | wmove(dialog, box_y, box_x); | |
173 | } | |
174 | pos--; | |
175 | } | |
176 | continue; | |
177 | case KEY_RIGHT: | |
178 | if (pos < len) { | |
179 | if (input_x < box_width - 1) { | |
180 | wmove(dialog, box_y, ++input_x + box_x); | |
181 | } else if (input_x == box_width - 1) { | |
182 | show_x++; | |
183 | wmove(dialog, box_y, box_x); | |
184 | for (i = 0; i < box_width; i++) { | |
185 | if (!instr[show_x + i]) { | |
186 | waddch(dialog, ' '); | |
187 | break; | |
188 | } | |
189 | waddch(dialog, instr[show_x + i]); | |
190 | } | |
191 | wmove(dialog, box_y, input_x + box_x); | |
192 | } | |
193 | pos++; | |
194 | } | |
195 | continue; | |
b1c5f1c6 SR |
196 | default: |
197 | if (key < 0x100 && isprint(key)) { | |
87727d45 | 198 | if (len < MAX_LEN) { |
98e5a157 | 199 | wattrset(dialog, dlg.inputbox.atr); |
87727d45 WY |
200 | if (pos < len) { |
201 | for (i = len; i > pos; i--) | |
202 | instr[i] = instr[i-1]; | |
203 | instr[pos] = key; | |
204 | } else { | |
205 | instr[len] = key; | |
206 | } | |
207 | pos++; | |
208 | len++; | |
209 | instr[len] = '\0'; | |
210 | ||
b1c5f1c6 | 211 | if (input_x == box_width - 1) { |
87727d45 | 212 | show_x++; |
b1c5f1c6 | 213 | } else { |
87727d45 WY |
214 | input_x++; |
215 | } | |
216 | ||
217 | wmove(dialog, box_y, box_x); | |
218 | for (i = 0; i < box_width; i++) { | |
219 | if (!instr[show_x + i]) { | |
220 | waddch(dialog, ' '); | |
221 | break; | |
222 | } | |
223 | waddch(dialog, instr[show_x + i]); | |
b1c5f1c6 | 224 | } |
87727d45 | 225 | wmove(dialog, box_y, input_x + box_x); |
b1c5f1c6 SR |
226 | wrefresh(dialog); |
227 | } else | |
228 | flash(); /* Alarm user about overflow */ | |
229 | continue; | |
230 | } | |
231 | } | |
1da177e4 | 232 | } |
b1c5f1c6 SR |
233 | switch (key) { |
234 | case 'O': | |
235 | case 'o': | |
236 | delwin(dialog); | |
237 | return 0; | |
238 | case 'H': | |
239 | case 'h': | |
240 | delwin(dialog); | |
241 | return 1; | |
242 | case KEY_UP: | |
243 | case KEY_LEFT: | |
244 | switch (button) { | |
245 | case -1: | |
4280eae0 | 246 | button = 1; /* Indicates "Help" button is selected */ |
b1c5f1c6 SR |
247 | print_buttons(dialog, height, width, 1); |
248 | break; | |
249 | case 0: | |
250 | button = -1; /* Indicates input box is selected */ | |
251 | print_buttons(dialog, height, width, 0); | |
252 | wmove(dialog, box_y, box_x + input_x); | |
253 | wrefresh(dialog); | |
254 | break; | |
255 | case 1: | |
256 | button = 0; /* Indicates "OK" button is selected */ | |
257 | print_buttons(dialog, height, width, 0); | |
258 | break; | |
1da177e4 | 259 | } |
b1c5f1c6 SR |
260 | break; |
261 | case TAB: | |
262 | case KEY_DOWN: | |
263 | case KEY_RIGHT: | |
264 | switch (button) { | |
265 | case -1: | |
266 | button = 0; /* Indicates "OK" button is selected */ | |
267 | print_buttons(dialog, height, width, 0); | |
268 | break; | |
269 | case 0: | |
4280eae0 | 270 | button = 1; /* Indicates "Help" button is selected */ |
b1c5f1c6 SR |
271 | print_buttons(dialog, height, width, 1); |
272 | break; | |
273 | case 1: | |
274 | button = -1; /* Indicates input box is selected */ | |
275 | print_buttons(dialog, height, width, 0); | |
276 | wmove(dialog, box_y, box_x + input_x); | |
277 | wrefresh(dialog); | |
278 | break; | |
279 | } | |
280 | break; | |
281 | case ' ': | |
282 | case '\n': | |
283 | delwin(dialog); | |
284 | return (button == -1 ? 0 : button); | |
285 | case 'X': | |
286 | case 'x': | |
f3cbcdc9 SR |
287 | key = KEY_ESC; |
288 | break; | |
289 | case KEY_ESC: | |
290 | key = on_key_esc(dialog); | |
b1c5f1c6 | 291 | break; |
c8dc68ad SR |
292 | case KEY_RESIZE: |
293 | delwin(dialog); | |
294 | on_key_resize(); | |
295 | goto do_resize; | |
1da177e4 | 296 | } |
1da177e4 | 297 | } |
1da177e4 | 298 | |
b1c5f1c6 | 299 | delwin(dialog); |
f3cbcdc9 | 300 | return KEY_ESC; /* ESC pressed */ |
1da177e4 | 301 | } |