1 /*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
4 *
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
7 *
8 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
9 */
11 #include <ctype.h>
12 #include <errno.h>
13 #include <fcntl.h>
14 #include <limits.h>
15 #include <stdarg.h>
16 #include <stdlib.h>
17 #include <string.h>
18 #include <signal.h>
19 #include <unistd.h>
21 #include "lkc.h"
22 #include "lxdialog/dialog.h"
24 static const char mconf_readme[] =
25 "Overview\n"
26 "--------\n"
27 "This interface lets you select features and parameters for the build.\n"
28 "Features can either be built-in, modularized, or ignored. Parameters\n"
29 "must be entered in as decimal or hexadecimal numbers or text.\n"
30 "\n"
31 "Menu items beginning with following braces represent features that\n"
32 " [ ] can be built in or removed\n"
33 " < > can be built in, modularized or removed\n"
34 " { } can be built in or modularized (selected by other feature)\n"
35 " - - are selected by other feature,\n"
36 "while *, M or whitespace inside braces means to build in, build as\n"
37 "a module or to exclude the feature respectively.\n"
38 "\n"
39 "To change any of these features, highlight it with the cursor\n"
40 "keys and press <Y> to build it in, <M> to make it a module or\n"
41 "<N> to remove it. You may also press the <Space Bar> to cycle\n"
42 "through the available options (i.e. Y->N->M->Y).\n"
43 "\n"
44 "Some additional keyboard hints:\n"
45 "\n"
46 "Menus\n"
47 "----------\n"
48 "o Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
49 " wish to change or the submenu you wish to select and press <Enter>.\n"
50 " Submenus are designated by \"--->\", empty ones by \"----\".\n"
51 "\n"
52 " Shortcut: Press the option's highlighted letter (hotkey).\n"
53 " Pressing a hotkey more than once will sequence\n"
54 " through all visible items which use that hotkey.\n"
55 "\n"
56 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
57 " unseen options into view.\n"
58 "\n"
59 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
60 " and press <ENTER>.\n"
61 "\n"
62 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
63 " using those letters. You may press a single <ESC>, but\n"
64 " there is a delayed response which you may find annoying.\n"
65 "\n"
66 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
67 " <Exit>, <Help>, <Save>, and <Load>.\n"
68 "\n"
69 "o To get help with an item, use the cursor keys to highlight <Help>\n"
70 " and press <ENTER>.\n"
71 "\n"
72 " Shortcut: Press <H> or <?>.\n"
73 "\n"
74 "o To toggle the display of hidden options, press <Z>.\n"
75 "\n"
76 "\n"
77 "Radiolists (Choice lists)\n"
78 "-----------\n"
79 "o Use the cursor keys to select the option you wish to set and press\n"
80 " <S> or the <SPACE BAR>.\n"
81 "\n"
82 " Shortcut: Press the first letter of the option you wish to set then\n"
83 " press <S> or <SPACE BAR>.\n"
84 "\n"
85 "o To see available help for the item, use the cursor keys to highlight\n"
86 " <Help> and Press <ENTER>.\n"
87 "\n"
88 " Shortcut: Press <H> or <?>.\n"
89 "\n"
90 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
91 " <Help>\n"
92 "\n"
93 "\n"
94 "Data Entry\n"
95 "-----------\n"
96 "o Enter the requested information and press <ENTER>\n"
97 " If you are entering hexadecimal values, it is not necessary to\n"
98 " add the '0x' prefix to the entry.\n"
99 "\n"
100 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
101 " and press <ENTER>. You can try <TAB><H> as well.\n"
102 "\n"
103 "\n"
104 "Text Box (Help Window)\n"
105 "--------\n"
106 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
107 " keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
108 " those who are familiar with less and lynx.\n"
109 "\n"
110 "o Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
111 "\n"
112 "\n"
113 "Alternate Configuration Files\n"
114 "-----------------------------\n"
115 "Menuconfig supports the use of alternate configuration files for\n"
116 "those who, for various reasons, find it necessary to switch\n"
117 "between different configurations.\n"
118 "\n"
119 "The <Save> button will let you save the current configuration to\n"
120 "a file of your choosing. Use the <Load> button to load a previously\n"
121 "saved alternate configuration.\n"
122 "\n"
123 "Even if you don't use alternate configuration files, but you find\n"
124 "during a Menuconfig session that you have completely messed up your\n"
125 "settings, you may use the <Load> button to restore your previously\n"
126 "saved settings from \".config\" without restarting Menuconfig.\n"
127 "\n"
128 "Other information\n"
129 "-----------------\n"
130 "If you use Menuconfig in an XTERM window, make sure you have your\n"
131 "$TERM variable set to point to an xterm definition which supports\n"
132 "color. Otherwise, Menuconfig will look rather bad. Menuconfig will\n"
133 "not display correctly in an RXVT window because rxvt displays only one\n"
134 "intensity of color, bright.\n"
135 "\n"
136 "Menuconfig will display larger menus on screens or xterms which are\n"
137 "set to display more than the standard 25 row by 80 column geometry.\n"
138 "In order for this to work, the \"stty size\" command must be able to\n"
139 "display the screen's current row and column geometry. I STRONGLY\n"
140 "RECOMMEND that you make sure you do NOT have the shell variables\n"
141 "LINES and COLUMNS exported into your environment. Some distributions\n"
142 "export those variables via /etc/profile. Some ncurses programs can\n"
143 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
144 "the true screen size.\n"
145 "\n"
146 "Optional personality available\n"
147 "------------------------------\n"
148 "If you prefer to have all of the options listed in a single menu,\n"
149 "rather than the default multimenu hierarchy, run the menuconfig with\n"
150 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
151 "\n"
152 "make MENUCONFIG_MODE=single_menu menuconfig\n"
153 "\n"
154 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
155 "is already unrolled.\n"
156 "\n"
157 "Note that this mode can eventually be a little more CPU expensive\n"
158 "(especially with a larger number of unrolled categories) than the\n"
159 "default mode.\n"
160 "\n"
161 "Different color themes available\n"
162 "--------------------------------\n"
163 "It is possible to select different color themes using the variable\n"
164 "MENUCONFIG_COLOR. To select a theme use:\n"
165 "\n"
166 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
167 "\n"
168 "Available themes are\n"
169 " mono => selects colors suitable for monochrome displays\n"
170 " blackbg => selects a color scheme with black background\n"
171 " classic => theme with blue background. The classic look\n"
172 " bluetitle => an LCD friendly version of classic. (default)\n"
173 "\n",
174 menu_instructions[] =
175 "Arrow keys navigate the menu. "
176 "<Enter> selects submenus ---> (or empty submenus ----). "
177 "Highlighted letters are hotkeys. "
178 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
179 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
180 "Legend: [*] built-in [ ] excluded <M> module < > module capable",
181 radiolist_instructions[] =
182 "Use the arrow keys to navigate this window or "
183 "press the hotkey of the item you wish to select "
184 "followed by the <SPACE BAR>. "
185 "Press <?> for additional information about this option.",
186 inputbox_instructions_int[] =
187 "Please enter a decimal value. "
188 "Fractions will not be accepted. "
189 "Use the <TAB> key to move from the input field to the buttons below it.",
190 inputbox_instructions_hex[] =
191 "Please enter a hexadecimal value. "
192 "Use the <TAB> key to move from the input field to the buttons below it.",
193 inputbox_instructions_string[] =
194 "Please enter a string value. "
195 "Use the <TAB> key to move from the input field to the buttons below it.",
196 setmod_text[] =
197 "This feature depends on another which has been configured as a module.\n"
198 "As a result, this feature will be built as a module.",
199 load_config_text[] =
200 "Enter the name of the configuration file you wish to load. "
201 "Accept the name shown to restore the configuration you "
202 "last retrieved. Leave blank to abort.",
203 load_config_help[] =
204 "\n"
205 "For various reasons, one may wish to keep several different\n"
206 "configurations available on a single machine.\n"
207 "\n"
208 "If you have saved a previous configuration in a file other than the\n"
209 "default one, entering its name here will allow you to modify that\n"
210 "configuration.\n"
211 "\n"
212 "If you are uncertain, then you have probably never used alternate\n"
213 "configuration files. You should therefore leave this blank to abort.\n",
214 save_config_text[] =
215 "Enter a filename to which this configuration should be saved "
216 "as an alternate. Leave blank to abort.",
217 save_config_help[] =
218 "\n"
219 "For various reasons, one may wish to keep different configurations\n"
220 "available on a single machine.\n"
221 "\n"
222 "Entering a file name here will allow you to later retrieve, modify\n"
223 "and use the current configuration as an alternate to whatever\n"
224 "configuration options you have selected at that time.\n"
225 "\n"
226 "If you are uncertain what all this means then you should probably\n"
227 "leave this blank.\n",
228 search_help[] =
229 "\n"
230 "Search for symbols and display their relations.\n"
231 "Regular expressions are allowed.\n"
232 "Example: search for \"^FOO\"\n"
233 "Result:\n"
234 "-----------------------------------------------------------------\n"
235 "Symbol: FOO [=m]\n"
236 "Type : tristate\n"
237 "Prompt: Foo bus is used to drive the bar HW\n"
238 " Location:\n"
239 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
240 " -> PCI support (PCI [=y])\n"
241 "(1) -> PCI access mode (<choice> [=y])\n"
242 " Defined at drivers/pci/Kconfig:47\n"
243 " Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
244 " Selects: LIBCRC32\n"
245 " Selected by: BAR [=n]\n"
246 "-----------------------------------------------------------------\n"
247 "o The line 'Type:' shows the type of the configuration option for\n"
248 " this symbol (bool, tristate, string, ...)\n"
249 "o The line 'Prompt:' shows the text used in the menu structure for\n"
250 " this symbol\n"
251 "o The 'Defined at' line tells at what file / line number the symbol\n"
252 " is defined\n"
253 "o The 'Depends on:' line tells what symbols need to be defined for\n"
254 " this symbol to be visible in the menu (selectable)\n"
255 "o The 'Location:' lines tells where in the menu structure this symbol\n"
256 " is located\n"
257 " A location followed by a [=y] indicates that this is a\n"
258 " selectable menu item - and the current value is displayed inside\n"
259 " brackets.\n"
260 " Press the key in the (#) prefix to jump directly to that\n"
261 " location. You will be returned to the current search results\n"
262 " after exiting this new menu.\n"
263 "o The 'Selects:' line tells what symbols will be automatically\n"
264 " selected if this symbol is selected (y or m)\n"
265 "o The 'Selected by' line tells what symbol has selected this symbol\n"
266 "\n"
267 "Only relevant lines are shown.\n"
268 "\n\n"
269 "Search examples:\n"
270 "Examples: USB => find all symbols containing USB\n"
271 " ^USB => find all symbols starting with USB\n"
272 " USB$ => find all symbols ending with USB\n"
273 "\n";
275 static int indent;
276 static struct menu *current_menu;
277 static int child_count;
278 static int single_menu_mode;
279 static int show_all_options;
280 static int save_and_exit;
281 static int silent;
283 static void conf(struct menu *menu, struct menu *active_menu);
284 static void conf_choice(struct menu *menu);
285 static void conf_string(struct menu *menu);
286 static void conf_load(void);
287 static void conf_save(void);
288 static int show_textbox_ext(const char *title, char *text, int r, int c,
289 int *keys, int *vscroll, int *hscroll,
290 update_text_fn update_text, void *data);
291 static void show_textbox(const char *title, const char *text, int r, int c);
292 static void show_helptext(const char *title, const char *text);
293 static void show_help(struct menu *menu);
295 static char filename[PATH_MAX+1];
296 static void set_config_filename(const char *config_filename)
297 {
298 static char menu_backtitle[PATH_MAX+128];
299 int size;
301 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
302 "%s - %s", config_filename, rootmenu.prompt->text);
303 if (size >= sizeof(menu_backtitle))
304 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
305 set_dialog_backtitle(menu_backtitle);
307 size = snprintf(filename, sizeof(filename), "%s", config_filename);
308 if (size >= sizeof(filename))
309 filename[sizeof(filename)-1] = '\0';
310 }
312 struct subtitle_part {
313 struct list_head entries;
314 const char *text;
315 };
316 static LIST_HEAD(trail);
318 static struct subtitle_list *subtitles;
319 static void set_subtitle(void)
320 {
321 struct subtitle_part *sp;
322 struct subtitle_list *pos, *tmp;
324 for (pos = subtitles; pos != NULL; pos = tmp) {
325 tmp = pos->next;
326 free(pos);
327 }
329 subtitles = NULL;
330 list_for_each_entry(sp, &trail, entries) {
331 if (sp->text) {
332 if (pos) {
333 pos->next = xcalloc(1, sizeof(*pos));
334 pos = pos->next;
335 } else {
336 subtitles = pos = xcalloc(1, sizeof(*pos));
337 }
338 pos->text = sp->text;
339 }
340 }
342 set_dialog_subtitles(subtitles);
343 }
345 static void reset_subtitle(void)
346 {
347 struct subtitle_list *pos, *tmp;
349 for (pos = subtitles; pos != NULL; pos = tmp) {
350 tmp = pos->next;
351 free(pos);
352 }
353 subtitles = NULL;
354 set_dialog_subtitles(subtitles);
355 }
357 struct search_data {
358 struct list_head *head;
359 struct menu **targets;
360 int *keys;
361 };
363 static void update_text(char *buf, size_t start, size_t end, void *_data)
364 {
365 struct search_data *data = _data;
366 struct jump_key *pos;
367 int k = 0;
369 list_for_each_entry(pos, data->head, entries) {
370 if (pos->offset >= start && pos->offset < end) {
371 char header[4];
373 if (k < JUMP_NB) {
374 int key = '0' + (pos->index % JUMP_NB) + 1;
376 sprintf(header, "(%c)", key);
377 data->keys[k] = key;
378 data->targets[k] = pos->target;
379 k++;
380 } else {
381 sprintf(header, " ");
382 }
384 memcpy(buf + pos->offset, header, sizeof(header) - 1);
385 }
386 }
387 data->keys[k] = 0;
388 }
390 static void search_conf(void)
391 {
392 struct symbol **sym_arr;
393 struct gstr res;
394 struct gstr title;
395 char *dialog_input;
396 int dres, vscroll = 0, hscroll = 0;
397 bool again;
398 struct gstr sttext;
399 struct subtitle_part stpart;
401 title = str_new();
402 str_printf( &title, "Enter (sub)string or regexp to search for "
403 "(with or without \"%s\")", CONFIG_);
405 again:
406 dialog_clear();
407 dres = dialog_inputbox("Search Configuration Parameter",
408 str_get(&title),
409 10, 75, "");
410 switch (dres) {
411 case 0:
412 break;
413 case 1:
414 show_helptext("Search Configuration", search_help);
415 goto again;
416 default:
417 str_free(&title);
418 return;
419 }
421 /* strip the prefix if necessary */
422 dialog_input = dialog_input_result;
423 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
424 dialog_input += strlen(CONFIG_);
426 sttext = str_new();
427 str_printf(&sttext, "Search (%s)", dialog_input_result);
428 stpart.text = str_get(&sttext);
429 list_add_tail(&stpart.entries, &trail);
431 sym_arr = sym_re_search(dialog_input);
432 do {
433 LIST_HEAD(head);
434 struct menu *targets[JUMP_NB];
435 int keys[JUMP_NB + 1], i;
436 struct search_data data = {
437 .head = &head,
438 .targets = targets,
439 .keys = keys,
440 };
441 struct jump_key *pos, *tmp;
443 res = get_relations_str(sym_arr, &head);
444 set_subtitle();
445 dres = show_textbox_ext("Search Results", (char *)
446 str_get(&res), 0, 0, keys, &vscroll,
447 &hscroll, &update_text, (void *)
448 &data);
449 again = false;
450 for (i = 0; i < JUMP_NB && keys[i]; i++)
451 if (dres == keys[i]) {
452 conf(targets[i]->parent, targets[i]);
453 again = true;
454 }
455 str_free(&res);
456 list_for_each_entry_safe(pos, tmp, &head, entries)
457 free(pos);
458 } while (again);
459 free(sym_arr);
460 str_free(&title);
461 list_del(trail.prev);
462 str_free(&sttext);
463 }
465 static void build_conf(struct menu *menu)
466 {
467 struct symbol *sym;
468 struct property *prop;
469 struct menu *child;
470 int type, tmp, doint = 2;
471 tristate val;
472 char ch;
473 bool visible;
475 /*
476 * note: menu_is_visible() has side effect that it will
477 * recalc the value of the symbol.
478 */
479 visible = menu_is_visible(menu);
480 if (show_all_options && !menu_has_prompt(menu))
481 return;
482 else if (!show_all_options && !visible)
483 return;
485 sym = menu->sym;
486 prop = menu->prompt;
487 if (!sym) {
488 if (prop && menu != current_menu) {
489 const char *prompt = menu_get_prompt(menu);
490 switch (prop->type) {
491 case P_MENU:
492 child_count++;
493 if (single_menu_mode) {
494 item_make("%s%*c%s",
495 menu->data ? "-->" : "++>",
496 indent + 1, ' ', prompt);
497 } else
498 item_make(" %*c%s %s",
499 indent + 1, ' ', prompt,
500 menu_is_empty(menu) ? "----" : "--->");
501 item_set_tag('m');
502 item_set_data(menu);
503 if (single_menu_mode && menu->data)
504 goto conf_childs;
505 return;
506 case P_COMMENT:
507 if (prompt) {
508 child_count++;
509 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
510 item_set_tag(':');
511 item_set_data(menu);
512 }
513 break;
514 default:
515 if (prompt) {
516 child_count++;
517 item_make("---%*c%s", indent + 1, ' ', prompt);
518 item_set_tag(':');
519 item_set_data(menu);
520 }
521 }
522 } else
523 doint = 0;
524 goto conf_childs;
525 }
527 type = sym_get_type(sym);
528 if (sym_is_choice(sym)) {
529 struct symbol *def_sym = sym_get_choice_value(sym);
530 struct menu *def_menu = NULL;
532 child_count++;
533 for (child = menu->list; child; child = child->next) {
534 if (menu_is_visible(child) && child->sym == def_sym)
535 def_menu = child;
536 }
538 val = sym_get_tristate_value(sym);
539 if (sym_is_changable(sym)) {
540 switch (type) {
541 case S_BOOLEAN:
542 item_make("[%c]", val == no ? ' ' : '*');
543 break;
544 case S_TRISTATE:
545 switch (val) {
546 case yes: ch = '*'; break;
547 case mod: ch = 'M'; break;
548 default: ch = ' '; break;
549 }
550 item_make("<%c>", ch);
551 break;
552 }
553 item_set_tag('t');
554 item_set_data(menu);
555 } else {
556 item_make(" ");
557 item_set_tag(def_menu ? 't' : ':');
558 item_set_data(menu);
559 }
561 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
562 if (val == yes) {
563 if (def_menu) {
564 item_add_str(" (%s)", menu_get_prompt(def_menu));
565 item_add_str(" --->");
566 if (def_menu->list) {
567 indent += 2;
568 build_conf(def_menu);
569 indent -= 2;
570 }
571 }
572 return;
573 }
574 } else {
575 if (menu == current_menu) {
576 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
577 item_set_tag(':');
578 item_set_data(menu);
579 goto conf_childs;
580 }
581 child_count++;
582 val = sym_get_tristate_value(sym);
583 if (sym_is_choice_value(sym) && val == yes) {
584 item_make(" ");
585 item_set_tag(':');
586 item_set_data(menu);
587 } else {
588 switch (type) {
589 case S_BOOLEAN:
590 if (sym_is_changable(sym))
591 item_make("[%c]", val == no ? ' ' : '*');
592 else
593 item_make("-%c-", val == no ? ' ' : '*');
594 item_set_tag('t');
595 item_set_data(menu);
596 break;
597 case S_TRISTATE:
598 switch (val) {
599 case yes: ch = '*'; break;
600 case mod: ch = 'M'; break;
601 default: ch = ' '; break;
602 }
603 if (sym_is_changable(sym)) {
604 if (sym->rev_dep.tri == mod)
605 item_make("{%c}", ch);
606 else
607 item_make("<%c>", ch);
608 } else
609 item_make("-%c-", ch);
610 item_set_tag('t');
611 item_set_data(menu);
612 break;
613 default:
614 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
615 item_make("(%s)", sym_get_string_value(sym));
616 tmp = indent - tmp + 4;
617 if (tmp < 0)
618 tmp = 0;
619 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
620 (sym_has_value(sym) || !sym_is_changable(sym)) ?
621 "" : " (NEW)");
622 item_set_tag('s');
623 item_set_data(menu);
624 goto conf_childs;
625 }
626 }
627 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
628 (sym_has_value(sym) || !sym_is_changable(sym)) ?
629 "" : " (NEW)");
630 if (menu->prompt->type == P_MENU) {
631 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
632 return;
633 }
634 }
636 conf_childs:
637 indent += doint;
638 for (child = menu->list; child; child = child->next)
639 build_conf(child);
640 indent -= doint;
641 }
643 static void conf(struct menu *menu, struct menu *active_menu)
644 {
645 struct menu *submenu;
646 const char *prompt = menu_get_prompt(menu);
647 struct subtitle_part stpart;
648 struct symbol *sym;
649 int res;
650 int s_scroll = 0;
652 if (menu != &rootmenu)
653 stpart.text = menu_get_prompt(menu);
654 else
655 stpart.text = NULL;
656 list_add_tail(&stpart.entries, &trail);
658 while (1) {
659 item_reset();
660 current_menu = menu;
661 build_conf(menu);
662 if (!child_count)
663 break;
664 set_subtitle();
665 dialog_clear();
666 res = dialog_menu(prompt ? prompt : "Main Menu",
667 menu_instructions,
668 active_menu, &s_scroll);
669 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
670 break;
671 if (item_count() != 0) {
672 if (!item_activate_selected())
673 continue;
674 if (!item_tag())
675 continue;
676 }
677 submenu = item_data();
678 active_menu = item_data();
679 if (submenu)
680 sym = submenu->sym;
681 else
682 sym = NULL;
684 switch (res) {
685 case 0:
686 switch (item_tag()) {
687 case 'm':
688 if (single_menu_mode)
689 submenu->data = (void *) (long) !submenu->data;
690 else
691 conf(submenu, NULL);
692 break;
693 case 't':
694 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
695 conf_choice(submenu);
696 else if (submenu->prompt->type == P_MENU)
697 conf(submenu, NULL);
698 break;
699 case 's':
700 conf_string(submenu);
701 break;
702 }
703 break;
704 case 2:
705 if (sym)
706 show_help(submenu);
707 else {
708 reset_subtitle();
709 show_helptext("README", mconf_readme);
710 }
711 break;
712 case 3:
713 reset_subtitle();
714 conf_save();
715 break;
716 case 4:
717 reset_subtitle();
718 conf_load();
719 break;
720 case 5:
721 if (item_is_tag('t')) {
722 if (sym_set_tristate_value(sym, yes))
723 break;
724 if (sym_set_tristate_value(sym, mod))
725 show_textbox(NULL, setmod_text, 6, 74);
726 }
727 break;
728 case 6:
729 if (item_is_tag('t'))
730 sym_set_tristate_value(sym, no);
731 break;
732 case 7:
733 if (item_is_tag('t'))
734 sym_set_tristate_value(sym, mod);
735 break;
736 case 8:
737 if (item_is_tag('t'))
738 sym_toggle_tristate_value(sym);
739 else if (item_is_tag('m'))
740 conf(submenu, NULL);
741 break;
742 case 9:
743 search_conf();
744 break;
745 case 10:
746 show_all_options = !show_all_options;
747 break;
748 }
749 }
751 list_del(trail.prev);
752 }
754 static int show_textbox_ext(const char *title, char *text, int r, int c, int
755 *keys, int *vscroll, int *hscroll, update_text_fn
756 update_text, void *data)
757 {
758 dialog_clear();
759 return dialog_textbox(title, text, r, c, keys, vscroll, hscroll,
760 update_text, data);
761 }
763 static void show_textbox(const char *title, const char *text, int r, int c)
764 {
765 show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL,
766 NULL, NULL);
767 }
769 static void show_helptext(const char *title, const char *text)
770 {
771 show_textbox(title, text, 0, 0);
772 }
774 static void conf_message_callback(const char *s)
775 {
776 if (save_and_exit) {
777 if (!silent)
778 printf("%s", s);
779 } else {
780 show_textbox(NULL, s, 6, 60);
781 }
782 }
784 static void show_help(struct menu *menu)
785 {
786 struct gstr help = str_new();
788 help.max_width = getmaxx(stdscr) - 10;
789 menu_get_ext_help(menu, &help);
791 show_helptext(menu_get_prompt(menu), str_get(&help));
792 str_free(&help);
793 }
795 static void conf_choice(struct menu *menu)
796 {
797 const char *prompt = menu_get_prompt(menu);
798 struct menu *child;
799 struct symbol *active;
801 active = sym_get_choice_value(menu->sym);
802 while (1) {
803 int res;
804 int selected;
805 item_reset();
807 current_menu = menu;
808 for (child = menu->list; child; child = child->next) {
809 if (!menu_is_visible(child))
810 continue;
811 if (child->sym)
812 item_make("%s", menu_get_prompt(child));
813 else {
814 item_make("*** %s ***", menu_get_prompt(child));
815 item_set_tag(':');
816 }
817 item_set_data(child);
818 if (child->sym == active)
819 item_set_selected(1);
820 if (child->sym == sym_get_choice_value(menu->sym))
821 item_set_tag('X');
822 }
823 dialog_clear();
824 res = dialog_checklist(prompt ? prompt : "Main Menu",
825 radiolist_instructions,
826 MENUBOX_HEIGTH_MIN,
827 MENUBOX_WIDTH_MIN,
828 CHECKLIST_HEIGTH_MIN);
829 selected = item_activate_selected();
830 switch (res) {
831 case 0:
832 if (selected) {
833 child = item_data();
834 if (!child->sym)
835 break;
837 sym_set_tristate_value(child->sym, yes);
838 }
839 return;
840 case 1:
841 if (selected) {
842 child = item_data();
843 show_help(child);
844 active = child->sym;
845 } else
846 show_help(menu);
847 break;
848 case KEY_ESC:
849 return;
850 case -ERRDISPLAYTOOSMALL:
851 return;
852 }
853 }
854 }
856 static void conf_string(struct menu *menu)
857 {
858 const char *prompt = menu_get_prompt(menu);
860 while (1) {
861 int res;
862 const char *heading;
864 switch (sym_get_type(menu->sym)) {
865 case S_INT:
866 heading = inputbox_instructions_int;
867 break;
868 case S_HEX:
869 heading = inputbox_instructions_hex;
870 break;
871 case S_STRING:
872 heading = inputbox_instructions_string;
873 break;
874 default:
875 heading = "Internal mconf error!";
876 }
877 dialog_clear();
878 res = dialog_inputbox(prompt ? prompt : "Main Menu",
879 heading, 10, 75,
880 sym_get_string_value(menu->sym));
881 switch (res) {
882 case 0:
883 if (sym_set_string_value(menu->sym, dialog_input_result))
884 return;
885 show_textbox(NULL, "You have made an invalid entry.", 5, 43);
886 break;
887 case 1:
888 show_help(menu);
889 break;
890 case KEY_ESC:
891 return;
892 }
893 }
894 }
896 static void conf_load(void)
897 {
899 while (1) {
900 int res;
901 dialog_clear();
902 res = dialog_inputbox(NULL, load_config_text,
903 11, 55, filename);
904 switch(res) {
905 case 0:
906 if (!dialog_input_result[0])
907 return;
908 if (!conf_read(dialog_input_result)) {
909 set_config_filename(dialog_input_result);
910 sym_set_change_count(1);
911 return;
912 }
913 show_textbox(NULL, "File does not exist!", 5, 38);
914 break;
915 case 1:
916 show_helptext("Load Alternate Configuration", load_config_help);
917 break;
918 case KEY_ESC:
919 return;
920 }
921 }
922 }
924 static void conf_save(void)
925 {
926 while (1) {
927 int res;
928 dialog_clear();
929 res = dialog_inputbox(NULL, save_config_text,
930 11, 55, filename);
931 switch(res) {
932 case 0:
933 if (!dialog_input_result[0])
934 return;
935 if (!conf_write(dialog_input_result)) {
936 set_config_filename(dialog_input_result);
937 return;
938 }
939 show_textbox(NULL, "Can't create file! Probably a nonexistent directory.", 5, 60);
940 break;
941 case 1:
942 show_helptext("Save Alternate Configuration", save_config_help);
943 break;
944 case KEY_ESC:
945 return;
946 }
947 }
948 }
950 static int handle_exit(void)
951 {
952 int res;
954 save_and_exit = 1;
955 reset_subtitle();
956 dialog_clear();
957 if (conf_get_changed())
958 res = dialog_yesno(NULL,
959 "Do you wish to save your new configuration?\n"
960 "(Press <ESC><ESC> to continue kernel configuration.)",
961 6, 60);
962 else
963 res = -1;
965 end_dialog(saved_x, saved_y);
967 switch (res) {
968 case 0:
969 if (conf_write(filename)) {
970 fprintf(stderr, "\n\n"
971 "Error while writing of the configuration.\n"
972 "Your configuration changes were NOT saved."
973 "\n\n");
974 return 1;
975 }
976 conf_write_autoconf(0);
977 /* fall through */
978 case -1:
979 if (!silent)
980 printf("\n\n"
981 "*** End of the configuration.\n"
982 "*** Execute 'make' to start the build or try 'make help'."
983 "\n\n");
984 res = 0;
985 break;
986 default:
987 if (!silent)
988 fprintf(stderr, "\n\n"
989 "Your configuration changes were NOT saved."
990 "\n\n");
991 if (res != KEY_ESC)
992 res = 0;
993 }
995 return res;
996 }
998 static void sig_handler(int signo)
999 {
1000 exit(handle_exit());
1001 }
1003 int main(int ac, char **av)
1004 {
1005 char *mode;
1006 int res;
1008 signal(SIGINT, sig_handler);
1010 if (ac > 1 && strcmp(av[1], "-s") == 0) {
1011 silent = 1;
1012 /* Silence conf_read() until the real callback is set up */
1013 conf_set_message_callback(NULL);
1014 av++;
1015 }
1016 conf_parse(av[1]);
1017 conf_read(NULL);
1019 mode = getenv("MENUCONFIG_MODE");
1020 if (mode) {
1021 if (!strcasecmp(mode, "single_menu"))
1022 single_menu_mode = 1;
1023 }
1025 if (init_dialog(NULL)) {
1026 fprintf(stderr, "Your display is too small to run Menuconfig!\n");
1027 fprintf(stderr, "It must be at least 19 lines by 80 columns.\n");
1028 return 1;
1029 }
1031 set_config_filename(conf_get_configname());
1032 conf_set_message_callback(conf_message_callback);
1033 do {
1034 conf(&rootmenu, NULL);
1035 res = handle_exit();
1036 } while (res == KEY_ESC);
1038 return res;
1039 }