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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 */
10
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>
20#include <locale.h>
21
22#include "lkc.h"
23#include "lxdialog/dialog.h"
24
25static const char mconf_readme[] = N_(
26"Overview\n"
27"--------\n"
28"This interface let you select features and parameters for the build.\n"
29"Features can either be built-in, modularized, or ignored. Parameters\n"
30"must be entered in as decimal or hexadecimal numbers or text.\n"
31"\n"
32"Menu items beginning with following braces represent features that\n"
33" [ ] can be built in or removed\n"
34" < > can be built in, modularized or removed\n"
35" { } can be built in or modularized (selected by other feature)\n"
36" - - are selected by other feature,\n"
37"while *, M or whitespace inside braces means to build in, build as\n"
38"a module or to exclude the feature respectively.\n"
39"\n"
40"To change any of these features, highlight it with the cursor\n"
41"keys and press <Y> to build it in, <M> to make it a module or\n"
42"<N> to removed it. You may also press the <Space Bar> to cycle\n"
43"through the available options (ie. Y->N->M->Y).\n"
44"\n"
45"Some additional keyboard hints:\n"
46"\n"
47"Menus\n"
48"----------\n"
49"o Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
50" you wish to change or submenu wish to select and press <Enter>.\n"
51" Submenus are designated by \"--->\".\n"
52"\n"
53" Shortcut: Press the option's highlighted letter (hotkey).\n"
54" Pressing a hotkey more than once will sequence\n"
55" through all visible items which use that hotkey.\n"
56"\n"
57" You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
58" unseen options into view.\n"
59"\n"
60"o To exit a menu use the cursor keys to highlight the <Exit> button\n"
61" and press <ENTER>.\n"
62"\n"
63" Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
64" using those letters. You may press a single <ESC>, but\n"
65" there is a delayed response which you may find annoying.\n"
66"\n"
67" Also, the <TAB> and cursor keys will cycle between <Select>,\n"
68" <Exit> and <Help>.\n"
69"\n"
70"o To get help with an item, use the cursor keys to highlight <Help>\n"
71" and press <ENTER>.\n"
72"\n"
73" Shortcut: Press <H> or <?>.\n"
74"\n"
75"o To toggle the display of hidden options, press <Z>.\n"
76"\n"
77"\n"
78"Radiolists (Choice lists)\n"
79"-----------\n"
80"o Use the cursor keys to select the option you wish to set and press\n"
81" <S> or the <SPACE BAR>.\n"
82"\n"
83" Shortcut: Press the first letter of the option you wish to set then\n"
84" press <S> or <SPACE BAR>.\n"
85"\n"
86"o To see available help for the item, use the cursor keys to highlight\n"
87" <Help> and Press <ENTER>.\n"
88"\n"
89" Shortcut: Press <H> or <?>.\n"
90"\n"
91" Also, the <TAB> and cursor keys will cycle between <Select> and\n"
92" <Help>\n"
93"\n"
94"\n"
95"Data Entry\n"
96"-----------\n"
97"o Enter the requested information and press <ENTER>\n"
98" If you are entering hexadecimal values, it is not necessary to\n"
99" add the '0x' prefix to the entry.\n"
100"\n"
101"o For help, use the <TAB> or cursor keys to highlight the help option\n"
102" and press <ENTER>. You can try <TAB><H> as well.\n"
103"\n"
104"\n"
105"Text Box (Help Window)\n"
106"--------\n"
107"o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
108" keys h,j,k,l function here as do <SPACE BAR> and <B> for those\n"
109" who are familiar with less and lynx.\n"
110"\n"
111"o Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\n"
112"\n"
113"\n"
114"Alternate Configuration Files\n"
115"-----------------------------\n"
116"Menuconfig supports the use of alternate configuration files for\n"
117"those who, for various reasons, find it necessary to switch\n"
118"between different configurations.\n"
119"\n"
120"At the end of the main menu you will find two options. One is\n"
121"for saving the current configuration to a file of your choosing.\n"
122"The other option is for loading a previously saved alternate\n"
123"configuration.\n"
124"\n"
125"Even if you don't use alternate configuration files, but you\n"
126"find during a Menuconfig session that you have completely messed\n"
127"up your settings, you may use the \"Load Alternate...\" option to\n"
128"restore your previously saved settings from \".config\" without\n"
129"restarting Menuconfig.\n"
130"\n"
131"Other information\n"
132"-----------------\n"
133"If you use Menuconfig in an XTERM window make sure you have your\n"
134"$TERM variable set to point to a xterm definition which supports color.\n"
135"Otherwise, Menuconfig will look rather bad. Menuconfig will not\n"
136"display correctly in a RXVT window because rxvt displays only one\n"
137"intensity of color, bright.\n"
138"\n"
139"Menuconfig will display larger menus on screens or xterms which are\n"
140"set to display more than the standard 25 row by 80 column geometry.\n"
141"In order for this to work, the \"stty size\" command must be able to\n"
142"display the screen's current row and column geometry. I STRONGLY\n"
143"RECOMMEND that you make sure you do NOT have the shell variables\n"
144"LINES and COLUMNS exported into your environment. Some distributions\n"
145"export those variables via /etc/profile. Some ncurses programs can\n"
146"become confused when those variables (LINES & COLUMNS) don't reflect\n"
147"the true screen size.\n"
148"\n"
149"Optional personality available\n"
150"------------------------------\n"
151"If you prefer to have all of the options listed in a single menu, rather\n"
152"than the default multimenu hierarchy, run the menuconfig with\n"
153"MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
154"\n"
155"make MENUCONFIG_MODE=single_menu menuconfig\n"
156"\n"
157"<Enter> will then unroll the appropriate category, or enfold it if it\n"
158"is already unrolled.\n"
159"\n"
160"Note that this mode can eventually be a little more CPU expensive\n"
161"(especially with a larger number of unrolled categories) than the\n"
162"default mode.\n"
163"\n"
164"Different color themes available\n"
165"--------------------------------\n"
166"It is possible to select different color themes using the variable\n"
167"MENUCONFIG_COLOR. To select a theme use:\n"
168"\n"
169"make MENUCONFIG_COLOR=<theme> menuconfig\n"
170"\n"
171"Available themes are\n"
172" mono => selects colors suitable for monochrome displays\n"
173" blackbg => selects a color scheme with black background\n"
174" classic => theme with blue background. The classic look\n"
175" bluetitle => a LCD friendly version of classic. (default)\n"
176"\n"),
177menu_instructions[] = N_(
178 "Arrow keys navigate the menu. "
179 "<Enter> selects submenus --->. "
180 "Highlighted letters are hotkeys. "
181 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
182 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
183 "Legend: [*] built-in [ ] excluded <M> module < > module capable"),
184radiolist_instructions[] = N_(
185 "Use the arrow keys to navigate this window or "
186 "press the hotkey of the item you wish to select "
187 "followed by the <SPACE BAR>. "
188 "Press <?> for additional information about this option."),
189inputbox_instructions_int[] = N_(
190 "Please enter a decimal value. "
191 "Fractions will not be accepted. "
192 "Use the <TAB> key to move from the input field to the buttons below it."),
193inputbox_instructions_hex[] = N_(
194 "Please enter a hexadecimal value. "
195 "Use the <TAB> key to move from the input field to the buttons below it."),
196inputbox_instructions_string[] = N_(
197 "Please enter a string value. "
198 "Use the <TAB> key to move from the input field to the buttons below it."),
199setmod_text[] = N_(
200 "This feature depends on another which has been configured as a module.\n"
201 "As a result, this feature will be built as a module."),
202load_config_text[] = N_(
203 "Enter the name of the configuration file you wish to load. "
204 "Accept the name shown to restore the configuration you "
205 "last retrieved. Leave blank to abort."),
206load_config_help[] = N_(
207 "\n"
208 "For various reasons, one may wish to keep several different\n"
209 "configurations available on a single machine.\n"
210 "\n"
211 "If you have saved a previous configuration in a file other than the\n"
212 "default one, entering its name here will allow you to modify that\n"
213 "configuration.\n"
214 "\n"
215 "If you are uncertain, then you have probably never used alternate\n"
216 "configuration files. You should therefore leave this blank to abort.\n"),
217save_config_text[] = N_(
218 "Enter a filename to which this configuration should be saved "
219 "as an alternate. Leave blank to abort."),
220save_config_help[] = N_(
221 "\n"
222 "For various reasons, one may wish to keep different configurations\n"
223 "available on a single machine.\n"
224 "\n"
225 "Entering a file name here will allow you to later retrieve, modify\n"
226 "and use the current configuration as an alternate to whatever\n"
227 "configuration options you have selected at that time.\n"
228 "\n"
229 "If you are uncertain what all this means then you should probably\n"
230 "leave this blank.\n"),
231search_help[] = N_(
232 "\n"
233 "Search for symbols and display their relations.\n"
234 "Regular expressions are allowed.\n"
235 "Example: search for \"^FOO\"\n"
236 "Result:\n"
237 "-----------------------------------------------------------------\n"
238 "Symbol: FOO [=m]\n"
239 "Prompt: Foo bus is used to drive the bar HW\n"
240 "Defined at drivers/pci/Kconfig:47\n"
241 "Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
242 "Location:\n"
243 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
244 " -> PCI support (PCI [=y])\n"
245 " -> PCI access mode (<choice> [=y])\n"
246 "Selects: LIBCRC32\n"
247 "Selected by: BAR\n"
248 "-----------------------------------------------------------------\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 tell at what file / line number the symbol\n"
252 " is defined\n"
253 "o The 'Depends on:' line tell what symbols needs to be defined for\n"
254 " this symbol to be visible in the menu (selectable)\n"
255 "o The 'Location:' lines tell where in the menu structure this symbol\n"
256 " is located\n"
257 " A location followed by a [=y] indicate that this is a selectable\n"
258 " menu item - and current value is displayed inside brackets.\n"
259 "o The 'Selects:' line tell what symbol will be automatically\n"
260 " selected if this symbol is selected (y or m)\n"
261 "o The 'Selected by' line tell what symbol has selected this symbol\n"
262 "\n"
263 "Only relevant lines are shown.\n"
264 "\n\n"
265 "Search examples:\n"
266 "Examples: USB => find all symbols containing USB\n"
267 " ^USB => find all symbols starting with USB\n"
268 " USB$ => find all symbols ending with USB\n"
269 "\n");
270
271static int indent;
272static struct menu *current_menu;
273static int child_count;
274static int single_menu_mode;
275static int show_all_options;
276static int saved_x, saved_y;
277
278static void conf(struct menu *menu);
279static void conf_choice(struct menu *menu);
280static void conf_string(struct menu *menu);
281static void conf_load(void);
282static void conf_save(void);
283static void show_textbox(const char *title, const char *text, int r, int c);
284static void show_helptext(const char *title, const char *text);
285static void show_help(struct menu *menu);
286
287static char filename[PATH_MAX+1];
288static void set_config_filename(const char *config_filename)
289{
290 static char menu_backtitle[PATH_MAX+128];
291 int size;
292
293 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
294 "%s - %s", config_filename, rootmenu.prompt->text);
295 if (size >= sizeof(menu_backtitle))
296 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
297 set_dialog_backtitle(menu_backtitle);
298
299 size = snprintf(filename, sizeof(filename), "%s", config_filename);
300 if (size >= sizeof(filename))
301 filename[sizeof(filename)-1] = '\0';
302}
303
304
305static void search_conf(void)
306{
307 struct symbol **sym_arr;
308 struct gstr res;
309 char *dialog_input;
310 int dres;
311again:
312 dialog_clear();
313 dres = dialog_inputbox(_("Search Configuration Parameter"),
314 _("Enter " CONFIG_ " (sub)string to search for "
315 "(with or without \"" CONFIG_ "\")"),
316 10, 75, "");
317 switch (dres) {
318 case 0:
319 break;
320 case 1:
321 show_helptext(_("Search Configuration"), search_help);
322 goto again;
323 default:
324 return;
325 }
326
327 /* strip the prefix if necessary */
328 dialog_input = dialog_input_result;
329 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
330 dialog_input += strlen(CONFIG_);
331
332 sym_arr = sym_re_search(dialog_input);
333 res = get_relations_str(sym_arr);
334 free(sym_arr);
335 show_textbox(_("Search Results"), str_get(&res), 0, 0);
336 str_free(&res);
337}
338
339static void build_conf(struct menu *menu)
340{
341 struct symbol *sym;
342 struct property *prop;
343 struct menu *child;
344 int type, tmp, doint = 2;
345 tristate val;
346 char ch;
347 bool visible;
348
349 /*
350 * note: menu_is_visible() has side effect that it will
351 * recalc the value of the symbol.
352 */
353 visible = menu_is_visible(menu);
354 if (show_all_options && !menu_has_prompt(menu))
355 return;
356 else if (!show_all_options && !visible)
357 return;
358
359 sym = menu->sym;
360 prop = menu->prompt;
361 if (!sym) {
362 if (prop && menu != current_menu) {
363 const char *prompt = menu_get_prompt(menu);
364 switch (prop->type) {
365 case P_MENU:
366 child_count++;
367 prompt = _(prompt);
368 if (single_menu_mode) {
369 item_make("%s%*c%s",
370 menu->data ? "-->" : "++>",
371 indent + 1, ' ', prompt);
372 } else
373 item_make(" %*c%s --->", indent + 1, ' ', prompt);
374
375 item_set_tag('m');
376 item_set_data(menu);
377 if (single_menu_mode && menu->data)
378 goto conf_childs;
379 return;
380 case P_COMMENT:
381 if (prompt) {
382 child_count++;
383 item_make(" %*c*** %s ***", indent + 1, ' ', _(prompt));
384 item_set_tag(':');
385 item_set_data(menu);
386 }
387 break;
388 default:
389 if (prompt) {
390 child_count++;
391 item_make("---%*c%s", indent + 1, ' ', _(prompt));
392 item_set_tag(':');
393 item_set_data(menu);
394 }
395 }
396 } else
397 doint = 0;
398 goto conf_childs;
399 }
400
401 type = sym_get_type(sym);
402 if (sym_is_choice(sym)) {
403 struct symbol *def_sym = sym_get_choice_value(sym);
404 struct menu *def_menu = NULL;
405
406 child_count++;
407 for (child = menu->list; child; child = child->next) {
408 if (menu_is_visible(child) && child->sym == def_sym)
409 def_menu = child;
410 }
411
412 val = sym_get_tristate_value(sym);
413 if (sym_is_changable(sym)) {
414 switch (type) {
415 case S_BOOLEAN:
416 item_make("[%c]", val == no ? ' ' : '*');
417 break;
418 case S_TRISTATE:
419 switch (val) {
420 case yes: ch = '*'; break;
421 case mod: ch = 'M'; break;
422 default: ch = ' '; break;
423 }
424 item_make("<%c>", ch);
425 break;
426 }
427 item_set_tag('t');
428 item_set_data(menu);
429 } else {
430 item_make(" ");
431 item_set_tag(def_menu ? 't' : ':');
432 item_set_data(menu);
433 }
434
435 item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
436 if (val == yes) {
437 if (def_menu) {
438 item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
439 item_add_str(" --->");
440 if (def_menu->list) {
441 indent += 2;
442 build_conf(def_menu);
443 indent -= 2;
444 }
445 }
446 return;
447 }
448 } else {
449 if (menu == current_menu) {
450 item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
451 item_set_tag(':');
452 item_set_data(menu);
453 goto conf_childs;
454 }
455 child_count++;
456 val = sym_get_tristate_value(sym);
457 if (sym_is_choice_value(sym) && val == yes) {
458 item_make(" ");
459 item_set_tag(':');
460 item_set_data(menu);
461 } else {
462 switch (type) {
463 case S_BOOLEAN:
464 if (sym_is_changable(sym))
465 item_make("[%c]", val == no ? ' ' : '*');
466 else
467 item_make("-%c-", val == no ? ' ' : '*');
468 item_set_tag('t');
469 item_set_data(menu);
470 break;
471 case S_TRISTATE:
472 switch (val) {
473 case yes: ch = '*'; break;
474 case mod: ch = 'M'; break;
475 default: ch = ' '; break;
476 }
477 if (sym_is_changable(sym)) {
478 if (sym->rev_dep.tri == mod)
479 item_make("{%c}", ch);
480 else
481 item_make("<%c>", ch);
482 } else
483 item_make("-%c-", ch);
484 item_set_tag('t');
485 item_set_data(menu);
486 break;
487 default:
488 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
489 item_make("(%s)", sym_get_string_value(sym));
490 tmp = indent - tmp + 4;
491 if (tmp < 0)
492 tmp = 0;
493 item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
494 (sym_has_value(sym) || !sym_is_changable(sym)) ?
495 "" : _(" (NEW)"));
496 item_set_tag('s');
497 item_set_data(menu);
498 goto conf_childs;
499 }
500 }
501 item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
502 (sym_has_value(sym) || !sym_is_changable(sym)) ?
503 "" : _(" (NEW)"));
504 if (menu->prompt->type == P_MENU) {
505 item_add_str(" --->");
506 return;
507 }
508 }
509
510conf_childs:
511 indent += doint;
512 for (child = menu->list; child; child = child->next)
513 build_conf(child);
514 indent -= doint;
515}
516
517static void conf(struct menu *menu)
518{
519 struct menu *submenu;
520 const char *prompt = menu_get_prompt(menu);
521 struct symbol *sym;
522 struct menu *active_menu = NULL;
523 int res;
524 int s_scroll = 0;
525
526 while (1) {
527 item_reset();
528 current_menu = menu;
529 build_conf(menu);
530 if (!child_count)
531 break;
532 if (menu == &rootmenu) {
533 item_make("--- ");
534 item_set_tag(':');
535 item_make(_(" Load an Alternate Configuration File"));
536 item_set_tag('L');
537 item_make(_(" Save an Alternate Configuration File"));
538 item_set_tag('S');
539 }
540 dialog_clear();
541 res = dialog_menu(prompt ? _(prompt) : _("Main Menu"),
542 _(menu_instructions),
543 active_menu, &s_scroll);
544 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
545 break;
546 if (!item_activate_selected())
547 continue;
548 if (!item_tag())
549 continue;
550
551 submenu = item_data();
552 active_menu = item_data();
553 if (submenu)
554 sym = submenu->sym;
555 else
556 sym = NULL;
557
558 switch (res) {
559 case 0:
560 switch (item_tag()) {
561 case 'm':
562 if (single_menu_mode)
563 submenu->data = (void *) (long) !submenu->data;
564 else
565 conf(submenu);
566 break;
567 case 't':
568 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
569 conf_choice(submenu);
570 else if (submenu->prompt->type == P_MENU)
571 conf(submenu);
572 break;
573 case 's':
574 conf_string(submenu);
575 break;
576 case 'L':
577 conf_load();
578 break;
579 case 'S':
580 conf_save();
581 break;
582 }
583 break;
584 case 2:
585 if (sym)
586 show_help(submenu);
587 else
588 show_helptext(_("README"), _(mconf_readme));
589 break;
590 case 3:
591 if (item_is_tag('t')) {
592 if (sym_set_tristate_value(sym, yes))
593 break;
594 if (sym_set_tristate_value(sym, mod))
595 show_textbox(NULL, setmod_text, 6, 74);
596 }
597 break;
598 case 4:
599 if (item_is_tag('t'))
600 sym_set_tristate_value(sym, no);
601 break;
602 case 5:
603 if (item_is_tag('t'))
604 sym_set_tristate_value(sym, mod);
605 break;
606 case 6:
607 if (item_is_tag('t'))
608 sym_toggle_tristate_value(sym);
609 else if (item_is_tag('m'))
610 conf(submenu);
611 break;
612 case 7:
613 search_conf();
614 break;
615 case 8:
616 show_all_options = !show_all_options;
617 break;
618 }
619 }
620}
621
622static void show_textbox(const char *title, const char *text, int r, int c)
623{
624 dialog_clear();
625 dialog_textbox(title, text, r, c);
626}
627
628static void show_helptext(const char *title, const char *text)
629{
630 show_textbox(title, text, 0, 0);
631}
632
633static void show_help(struct menu *menu)
634{
635 struct gstr help = str_new();
636
637 help.max_width = getmaxx(stdscr) - 10;
638 menu_get_ext_help(menu, &help);
639
640 show_helptext(_(menu_get_prompt(menu)), str_get(&help));
641 str_free(&help);
642}
643
644static void conf_choice(struct menu *menu)
645{
646 const char *prompt = _(menu_get_prompt(menu));
647 struct menu *child;
648 struct symbol *active;
649
650 active = sym_get_choice_value(menu->sym);
651 while (1) {
652 int res;
653 int selected;
654 item_reset();
655
656 current_menu = menu;
657 for (child = menu->list; child; child = child->next) {
658 if (!menu_is_visible(child))
659 continue;
660 if (child->sym)
661 item_make("%s", _(menu_get_prompt(child)));
662 else {
663 item_make("*** %s ***", _(menu_get_prompt(child)));
664 item_set_tag(':');
665 }
666 item_set_data(child);
667 if (child->sym == active)
668 item_set_selected(1);
669 if (child->sym == sym_get_choice_value(menu->sym))
670 item_set_tag('X');
671 }
672 dialog_clear();
673 res = dialog_checklist(prompt ? _(prompt) : _("Main Menu"),
674 _(radiolist_instructions),
675 15, 70, 6);
676 selected = item_activate_selected();
677 switch (res) {
678 case 0:
679 if (selected) {
680 child = item_data();
681 if (!child->sym)
682 break;
683
684 sym_set_tristate_value(child->sym, yes);
685 }
686 return;
687 case 1:
688 if (selected) {
689 child = item_data();
690 show_help(child);
691 active = child->sym;
692 } else
693 show_help(menu);
694 break;
695 case KEY_ESC:
696 return;
697 case -ERRDISPLAYTOOSMALL:
698 return;
699 }
700 }
701}
702
703static void conf_string(struct menu *menu)
704{
705 const char *prompt = menu_get_prompt(menu);
706
707 while (1) {
708 int res;
709 const char *heading;
710
711 switch (sym_get_type(menu->sym)) {
712 case S_INT:
713 heading = _(inputbox_instructions_int);
714 break;
715 case S_HEX:
716 heading = _(inputbox_instructions_hex);
717 break;
718 case S_STRING:
719 heading = _(inputbox_instructions_string);
720 break;
721 default:
722 heading = _("Internal mconf error!");
723 }
724 dialog_clear();
725 res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
726 heading, 10, 75,
727 sym_get_string_value(menu->sym));
728 switch (res) {
729 case 0:
730 if (sym_set_string_value(menu->sym, dialog_input_result))
731 return;
732 show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
733 break;
734 case 1:
735 show_help(menu);
736 break;
737 case KEY_ESC:
738 return;
739 }
740 }
741}
742
743static void conf_load(void)
744{
745
746 while (1) {
747 int res;
748 dialog_clear();
749 res = dialog_inputbox(NULL, load_config_text,
750 11, 55, filename);
751 switch(res) {
752 case 0:
753 if (!dialog_input_result[0])
754 return;
755 if (!conf_read(dialog_input_result)) {
756 set_config_filename(dialog_input_result);
757 sym_set_change_count(1);
758 return;
759 }
760 show_textbox(NULL, _("File does not exist!"), 5, 38);
761 break;
762 case 1:
763 show_helptext(_("Load Alternate Configuration"), load_config_help);
764 break;
765 case KEY_ESC:
766 return;
767 }
768 }
769}
770
771static void conf_save(void)
772{
773 while (1) {
774 int res;
775 dialog_clear();
776 res = dialog_inputbox(NULL, save_config_text,
777 11, 55, filename);
778 switch(res) {
779 case 0:
780 if (!dialog_input_result[0])
781 return;
782 if (!conf_write(dialog_input_result)) {
783 set_config_filename(dialog_input_result);
784 return;
785 }
786 show_textbox(NULL, _("Can't create file! Probably a nonexistent directory."), 5, 60);
787 break;
788 case 1:
789 show_helptext(_("Save Alternate Configuration"), save_config_help);
790 break;
791 case KEY_ESC:
792 return;
793 }
794 }
795}
796
797static int handle_exit(void)
798{
799 int res;
800
801 dialog_clear();
802 if (conf_get_changed())
803 res = dialog_yesno(NULL,
804 _("Do you wish to save your new configuration ?\n"
805 "<ESC><ESC> to continue."),
806 6, 60);
807 else
808 res = -1;
809
810 end_dialog(saved_x, saved_y);
811
812 switch (res) {
813 case 0:
814 if (conf_write(filename)) {
815 fprintf(stderr, _("\n\n"
816 "Error while writing of the configuration.\n"
817 "Your configuration changes were NOT saved."
818 "\n\n"));
819 return 1;
820 }
821 /* fall through */
822 case -1:
823 printf(_("\n\n"
824 "*** End of the configuration.\n"
825 "*** Execute 'make' to start the build or try 'make help'."
826 "\n\n"));
827 res = 0;
828 break;
829 default:
830 fprintf(stderr, _("\n\n"
831 "Your configuration changes were NOT saved."
832 "\n\n"));
833 if (res != KEY_ESC)
834 res = 0;
835 }
836
837 return res;
838}
839
840static void sig_handler(int signo)
841{
842 exit(handle_exit());
843}
844
845int main(int ac, char **av)
846{
847 char *mode;
848 int res;
849
850 setlocale(LC_ALL, "");
851 bindtextdomain(PACKAGE, LOCALEDIR);
852 textdomain(PACKAGE);
853
854 signal(SIGINT, sig_handler);
855
856 conf_parse(av[1]);
857 conf_read(NULL);
858
859 mode = getenv("MENUCONFIG_MODE");
860 if (mode) {
861 if (!strcasecmp(mode, "single_menu"))
862 single_menu_mode = 1;
863 }
864
865 initscr();
866
867 getyx(stdscr, saved_y, saved_x);
868 if (init_dialog(NULL)) {
869 fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
870 fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
871 return 1;
872 }
873
874 set_config_filename(conf_get_configname());
875 do {
876 conf(&rootmenu);
877 res = handle_exit();
878 } while (res == KEY_ESC);
879
880 return res;
881}
882
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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 */
10
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 <strings.h>
19#include <signal.h>
20#include <unistd.h>
21
22#include <list.h>
23#include <xalloc.h>
24#include "lkc.h"
25#include "lxdialog/dialog.h"
26#include "mnconf-common.h"
27
28static const char mconf_readme[] =
29"Overview\n"
30"--------\n"
31"This interface lets you select features and parameters for the build.\n"
32"Features can either be built-in, modularized, or ignored. Parameters\n"
33"must be entered in as decimal or hexadecimal numbers or text.\n"
34"\n"
35"Menu items beginning with following braces represent features that\n"
36" [ ] can be built in or removed\n"
37" < > can be built in, modularized or removed\n"
38" { } can be built in or modularized (selected by other feature)\n"
39" - - are selected by other feature,\n"
40"while *, M or whitespace inside braces means to build in, build as\n"
41"a module or to exclude the feature respectively.\n"
42"\n"
43"To change any of these features, highlight it with the cursor\n"
44"keys and press <Y> to build it in, <M> to make it a module or\n"
45"<N> to remove it. You may also press the <Space Bar> to cycle\n"
46"through the available options (i.e. Y->N->M->Y).\n"
47"\n"
48"Some additional keyboard hints:\n"
49"\n"
50"Menus\n"
51"----------\n"
52"o Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
53" wish to change or the submenu you wish to select and press <Enter>.\n"
54" Submenus are designated by \"--->\", empty ones by \"----\".\n"
55"\n"
56" Shortcut: Press the option's highlighted letter (hotkey).\n"
57" Pressing a hotkey more than once will sequence\n"
58" through all visible items which use that hotkey.\n"
59"\n"
60" You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
61" unseen options into view.\n"
62"\n"
63"o To exit a menu use the cursor keys to highlight the <Exit> button\n"
64" and press <ENTER>.\n"
65"\n"
66" Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
67" using those letters. You may press a single <ESC>, but\n"
68" there is a delayed response which you may find annoying.\n"
69"\n"
70" Also, the <TAB> and cursor keys will cycle between <Select>,\n"
71" <Exit>, <Help>, <Save>, and <Load>.\n"
72"\n"
73"o To get help with an item, use the cursor keys to highlight <Help>\n"
74" and press <ENTER>.\n"
75"\n"
76" Shortcut: Press <H> or <?>.\n"
77"\n"
78"o To toggle the display of hidden options, press <Z>.\n"
79"\n"
80"\n"
81"Radiolists (Choice lists)\n"
82"-----------\n"
83"o Use the cursor keys to select the option you wish to set and press\n"
84" <S> or the <SPACE BAR>.\n"
85"\n"
86" Shortcut: Press the first letter of the option you wish to set then\n"
87" press <S> or <SPACE BAR>.\n"
88"\n"
89"o To see available help for the item, use the cursor keys to highlight\n"
90" <Help> and Press <ENTER>.\n"
91"\n"
92" Shortcut: Press <H> or <?>.\n"
93"\n"
94" Also, the <TAB> and cursor keys will cycle between <Select> and\n"
95" <Help>\n"
96"\n"
97"\n"
98"Data Entry\n"
99"-----------\n"
100"o Enter the requested information and press <ENTER>\n"
101" If you are entering hexadecimal values, it is not necessary to\n"
102" add the '0x' prefix to the entry.\n"
103"\n"
104"o For help, use the <TAB> or cursor keys to highlight the help option\n"
105" and press <ENTER>. You can try <TAB><H> as well.\n"
106"\n"
107"\n"
108"Text Box (Help Window)\n"
109"--------\n"
110"o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
111" keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
112" those who are familiar with less and lynx.\n"
113"\n"
114"o Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
115"\n"
116"\n"
117"Alternate Configuration Files\n"
118"-----------------------------\n"
119"Menuconfig supports the use of alternate configuration files for\n"
120"those who, for various reasons, find it necessary to switch\n"
121"between different configurations.\n"
122"\n"
123"The <Save> button will let you save the current configuration to\n"
124"a file of your choosing. Use the <Load> button to load a previously\n"
125"saved alternate configuration.\n"
126"\n"
127"Even if you don't use alternate configuration files, but you find\n"
128"during a Menuconfig session that you have completely messed up your\n"
129"settings, you may use the <Load> button to restore your previously\n"
130"saved settings from \".config\" without restarting Menuconfig.\n"
131"\n"
132"Other information\n"
133"-----------------\n"
134"If you use Menuconfig in an XTERM window, make sure you have your\n"
135"$TERM variable set to point to an xterm definition which supports\n"
136"color. Otherwise, Menuconfig will look rather bad. Menuconfig will\n"
137"not display correctly in an RXVT window because rxvt displays only one\n"
138"intensity of color, bright.\n"
139"\n"
140"Menuconfig will display larger menus on screens or xterms which are\n"
141"set to display more than the standard 25 row by 80 column geometry.\n"
142"In order for this to work, the \"stty size\" command must be able to\n"
143"display the screen's current row and column geometry. I STRONGLY\n"
144"RECOMMEND that you make sure you do NOT have the shell variables\n"
145"LINES and COLUMNS exported into your environment. Some distributions\n"
146"export those variables via /etc/profile. Some ncurses programs can\n"
147"become confused when those variables (LINES & COLUMNS) don't reflect\n"
148"the true screen size.\n"
149"\n"
150"Optional personality available\n"
151"------------------------------\n"
152"If you prefer to have all of the options listed in a single menu,\n"
153"rather than the default multimenu hierarchy, run the menuconfig with\n"
154"MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
155"\n"
156"make MENUCONFIG_MODE=single_menu menuconfig\n"
157"\n"
158"<Enter> will then unroll the appropriate category, or enfold it if it\n"
159"is already unrolled.\n"
160"\n"
161"Note that this mode can eventually be a little more CPU expensive\n"
162"(especially with a larger number of unrolled categories) than the\n"
163"default mode.\n"
164"\n"
165
166"Search\n"
167"-------\n"
168"Pressing the forward-slash (/) anywhere brings up a search dialog box.\n"
169"\n"
170
171"Different color themes available\n"
172"--------------------------------\n"
173"It is possible to select different color themes using the variable\n"
174"MENUCONFIG_COLOR. To select a theme use:\n"
175"\n"
176"make MENUCONFIG_COLOR=<theme> menuconfig\n"
177"\n"
178"Available themes are\n"
179" mono => selects colors suitable for monochrome displays\n"
180" blackbg => selects a color scheme with black background\n"
181" classic => theme with blue background. The classic look\n"
182" bluetitle => an LCD friendly version of classic. (default)\n"
183"\n",
184menu_instructions[] =
185 "Arrow keys navigate the menu. "
186 "<Enter> selects submenus ---> (or empty submenus ----). "
187 "Highlighted letters are hotkeys. "
188 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
189 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
190 "Legend: [*] built-in [ ] excluded <M> module < > module capable",
191radiolist_instructions[] =
192 "Use the arrow keys to navigate this window or "
193 "press the hotkey of the item you wish to select "
194 "followed by the <SPACE BAR>. "
195 "Press <?> for additional information about this option.",
196inputbox_instructions_int[] =
197 "Please enter a decimal value. "
198 "Fractions will not be accepted. "
199 "Use the <TAB> key to move from the input field to the buttons below it.",
200inputbox_instructions_hex[] =
201 "Please enter a hexadecimal value. "
202 "Use the <TAB> key to move from the input field to the buttons below it.",
203inputbox_instructions_string[] =
204 "Please enter a string value. "
205 "Use the <TAB> key to move from the input field to the buttons below it.",
206setmod_text[] =
207 "This feature depends on another which has been configured as a module.\n"
208 "As a result, this feature will be built as a module.",
209load_config_text[] =
210 "Enter the name of the configuration file you wish to load. "
211 "Accept the name shown to restore the configuration you "
212 "last retrieved. Leave blank to abort.",
213load_config_help[] =
214 "\n"
215 "For various reasons, one may wish to keep several different\n"
216 "configurations available on a single machine.\n"
217 "\n"
218 "If you have saved a previous configuration in a file other than the\n"
219 "default one, entering its name here will allow you to modify that\n"
220 "configuration.\n"
221 "\n"
222 "If you are uncertain, then you have probably never used alternate\n"
223 "configuration files. You should therefore leave this blank to abort.\n",
224save_config_text[] =
225 "Enter a filename to which this configuration should be saved "
226 "as an alternate. Leave blank to abort.",
227save_config_help[] =
228 "\n"
229 "For various reasons, one may wish to keep different configurations\n"
230 "available on a single machine.\n"
231 "\n"
232 "Entering a file name here will allow you to later retrieve, modify\n"
233 "and use the current configuration as an alternate to whatever\n"
234 "configuration options you have selected at that time.\n"
235 "\n"
236 "If you are uncertain what all this means then you should probably\n"
237 "leave this blank.\n",
238search_help[] =
239 "\n"
240 "Search for symbols and display their relations.\n"
241 "Regular expressions are allowed.\n"
242 "Example: search for \"^FOO\"\n"
243 "Result:\n"
244 "-----------------------------------------------------------------\n"
245 "Symbol: FOO [=m]\n"
246 "Type : tristate\n"
247 "Prompt: Foo bus is used to drive the bar HW\n"
248 " Location:\n"
249 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
250 " -> PCI support (PCI [=y])\n"
251 "(1) -> PCI access mode (<choice> [=y])\n"
252 " Defined at drivers/pci/Kconfig:47\n"
253 " Depends on: X86_LOCAL_APIC && X86_IO_APIC\n"
254 " Selects: LIBCRC32\n"
255 " Selected by: BAR [=n]\n"
256 "-----------------------------------------------------------------\n"
257 "o The line 'Type:' shows the type of the configuration option for\n"
258 " this symbol (bool, tristate, string, ...)\n"
259 "o The line 'Prompt:' shows the text used in the menu structure for\n"
260 " this symbol\n"
261 "o The 'Defined at' line tells at what file / line number the symbol\n"
262 " is defined\n"
263 "o The 'Depends on:' line tells what symbols need to be defined for\n"
264 " this symbol to be visible in the menu (selectable)\n"
265 "o The 'Location:' lines tells where in the menu structure this symbol\n"
266 " is located\n"
267 " A location followed by a [=y] indicates that this is a\n"
268 " selectable menu item - and the current value is displayed inside\n"
269 " brackets.\n"
270 " Press the key in the (#) prefix to jump directly to that\n"
271 " location. You will be returned to the current search results\n"
272 " after exiting this new menu.\n"
273 "o The 'Selects:' line tells what symbols will be automatically\n"
274 " selected if this symbol is selected (y or m)\n"
275 "o The 'Selected by' line tells what symbol has selected this symbol\n"
276 "\n"
277 "Only relevant lines are shown.\n"
278 "\n\n"
279 "Search examples:\n"
280 "Examples: USB => find all symbols containing USB\n"
281 " ^USB => find all symbols starting with USB\n"
282 " USB$ => find all symbols ending with USB\n"
283 "\n";
284
285static int indent;
286static struct menu *current_menu;
287static int child_count;
288static int single_menu_mode;
289static int show_all_options;
290static int save_and_exit;
291static int silent;
292
293static void conf(struct menu *menu, struct menu *active_menu);
294
295static char filename[PATH_MAX+1];
296static void set_config_filename(const char *config_filename)
297{
298 static char menu_backtitle[PATH_MAX+128];
299
300 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
301 config_filename, rootmenu.prompt->text);
302 set_dialog_backtitle(menu_backtitle);
303
304 snprintf(filename, sizeof(filename), "%s", config_filename);
305}
306
307struct subtitle_part {
308 struct list_head entries;
309 const char *text;
310};
311static LIST_HEAD(trail);
312
313static struct subtitle_list *subtitles;
314static void set_subtitle(void)
315{
316 struct subtitle_part *sp;
317 struct subtitle_list *pos, *tmp;
318
319 for (pos = subtitles; pos != NULL; pos = tmp) {
320 tmp = pos->next;
321 free(pos);
322 }
323
324 subtitles = NULL;
325 list_for_each_entry(sp, &trail, entries) {
326 if (sp->text) {
327 if (pos) {
328 pos->next = xcalloc(1, sizeof(*pos));
329 pos = pos->next;
330 } else {
331 subtitles = pos = xcalloc(1, sizeof(*pos));
332 }
333 pos->text = sp->text;
334 }
335 }
336
337 set_dialog_subtitles(subtitles);
338}
339
340static void reset_subtitle(void)
341{
342 struct subtitle_list *pos, *tmp;
343
344 for (pos = subtitles; pos != NULL; pos = tmp) {
345 tmp = pos->next;
346 free(pos);
347 }
348 subtitles = NULL;
349 set_dialog_subtitles(subtitles);
350}
351
352static int show_textbox_ext(const char *title, const char *text, int r, int c,
353 int *vscroll, int *hscroll,
354 int (*extra_key_cb)(int, size_t, size_t, void *),
355 void *data)
356{
357 dialog_clear();
358 return dialog_textbox(title, text, r, c, vscroll, hscroll,
359 extra_key_cb, data);
360}
361
362static void show_textbox(const char *title, const char *text, int r, int c)
363{
364 show_textbox_ext(title, text, r, c, NULL, NULL, NULL, NULL);
365}
366
367static void show_helptext(const char *title, const char *text)
368{
369 show_textbox(title, text, 0, 0);
370}
371
372static void show_help(struct menu *menu)
373{
374 struct gstr help = str_new();
375
376 help.max_width = getmaxx(stdscr) - 10;
377 menu_get_ext_help(menu, &help);
378
379 show_helptext(menu_get_prompt(menu), str_get(&help));
380 str_free(&help);
381}
382
383static void search_conf(void)
384{
385 struct symbol **sym_arr;
386 struct gstr res;
387 struct gstr title;
388 char *dialog_input;
389 int dres, vscroll = 0, hscroll = 0;
390 bool again;
391 struct gstr sttext;
392 struct subtitle_part stpart;
393
394 title = str_new();
395 str_printf( &title, "Enter (sub)string or regexp to search for "
396 "(with or without \"%s\")", CONFIG_);
397
398again:
399 dialog_clear();
400 dres = dialog_inputbox("Search Configuration Parameter",
401 str_get(&title),
402 10, 75, "");
403 switch (dres) {
404 case 0:
405 break;
406 case 1:
407 show_helptext("Search Configuration", search_help);
408 goto again;
409 default:
410 str_free(&title);
411 return;
412 }
413
414 /* strip the prefix if necessary */
415 dialog_input = dialog_input_result;
416 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
417 dialog_input += strlen(CONFIG_);
418
419 sttext = str_new();
420 str_printf(&sttext, "Search (%s)", dialog_input_result);
421 stpart.text = str_get(&sttext);
422 list_add_tail(&stpart.entries, &trail);
423
424 sym_arr = sym_re_search(dialog_input);
425 do {
426 LIST_HEAD(head);
427 struct search_data data = {
428 .head = &head,
429 };
430 struct jump_key *pos, *tmp;
431
432 jump_key_char = 0;
433 res = get_relations_str(sym_arr, &head);
434 set_subtitle();
435 dres = show_textbox_ext("Search Results", str_get(&res), 0, 0,
436 &vscroll, &hscroll,
437 handle_search_keys, &data);
438 again = false;
439 if (dres >= '1' && dres <= '9') {
440 assert(data.target != NULL);
441 conf(data.target->parent, data.target);
442 again = true;
443 }
444 str_free(&res);
445 list_for_each_entry_safe(pos, tmp, &head, entries)
446 free(pos);
447 } while (again);
448 free(sym_arr);
449 str_free(&title);
450 list_del(trail.prev);
451 str_free(&sttext);
452}
453
454static void build_conf(struct menu *menu)
455{
456 struct symbol *sym;
457 struct property *prop;
458 struct menu *child;
459 int type, tmp, doint = 2;
460 tristate val;
461 char ch;
462 bool visible;
463
464 /*
465 * note: menu_is_visible() has side effect that it will
466 * recalc the value of the symbol.
467 */
468 visible = menu_is_visible(menu);
469 if (show_all_options && !menu_has_prompt(menu))
470 return;
471 else if (!show_all_options && !visible)
472 return;
473
474 sym = menu->sym;
475 prop = menu->prompt;
476 if (!sym) {
477 if (prop && menu != current_menu) {
478 const char *prompt = menu_get_prompt(menu);
479 switch (prop->type) {
480 case P_MENU:
481 child_count++;
482 if (single_menu_mode) {
483 item_make("%s%*c%s",
484 menu->data ? "-->" : "++>",
485 indent + 1, ' ', prompt);
486 } else
487 item_make(" %*c%s %s",
488 indent + 1, ' ', prompt,
489 menu_is_empty(menu) ? "----" : "--->");
490 item_set_tag('m');
491 item_set_data(menu);
492 if (single_menu_mode && menu->data)
493 goto conf_childs;
494 return;
495 case P_COMMENT:
496 if (prompt) {
497 child_count++;
498 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
499 item_set_tag(':');
500 item_set_data(menu);
501 }
502 break;
503 default:
504 if (prompt) {
505 child_count++;
506 item_make("---%*c%s", indent + 1, ' ', prompt);
507 item_set_tag(':');
508 item_set_data(menu);
509 }
510 }
511 } else
512 doint = 0;
513 goto conf_childs;
514 }
515
516 type = sym_get_type(sym);
517 if (sym_is_choice(sym)) {
518 struct symbol *def_sym = sym_calc_choice(menu);
519 struct menu *def_menu = NULL;
520
521 child_count++;
522 for (child = menu->list; child; child = child->next) {
523 if (menu_is_visible(child) && child->sym == def_sym)
524 def_menu = child;
525 }
526
527 item_make(" ");
528 item_set_tag(def_menu ? 't' : ':');
529 item_set_data(menu);
530
531 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
532 if (def_menu)
533 item_add_str(" (%s) --->", menu_get_prompt(def_menu));
534 return;
535 } else {
536 if (menu == current_menu) {
537 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
538 item_set_tag(':');
539 item_set_data(menu);
540 goto conf_childs;
541 }
542 child_count++;
543 val = sym_get_tristate_value(sym);
544 switch (type) {
545 case S_BOOLEAN:
546 if (sym_is_changeable(sym))
547 item_make("[%c]", val == no ? ' ' : '*');
548 else
549 item_make("-%c-", val == no ? ' ' : '*');
550 item_set_tag('t');
551 item_set_data(menu);
552 break;
553 case S_TRISTATE:
554 switch (val) {
555 case yes: ch = '*'; break;
556 case mod: ch = 'M'; break;
557 default: ch = ' '; break;
558 }
559 if (sym_is_changeable(sym)) {
560 if (sym->rev_dep.tri == mod)
561 item_make("{%c}", ch);
562 else
563 item_make("<%c>", ch);
564 } else
565 item_make("-%c-", ch);
566 item_set_tag('t');
567 item_set_data(menu);
568 break;
569 default:
570 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
571 item_make("(%s)", sym_get_string_value(sym));
572 tmp = indent - tmp + 4;
573 if (tmp < 0)
574 tmp = 0;
575 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
576 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
577 "" : " (NEW)");
578 item_set_tag('s');
579 item_set_data(menu);
580 goto conf_childs;
581 }
582 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
583 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
584 "" : " (NEW)");
585 if (menu->prompt->type == P_MENU) {
586 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
587 return;
588 }
589 }
590
591conf_childs:
592 indent += doint;
593 for (child = menu->list; child; child = child->next)
594 build_conf(child);
595 indent -= doint;
596}
597
598static void conf_choice(struct menu *menu)
599{
600 const char *prompt = menu_get_prompt(menu);
601 struct menu *child;
602 struct symbol *active;
603
604 active = sym_calc_choice(menu);
605 while (1) {
606 int res;
607 int selected;
608 item_reset();
609
610 current_menu = menu;
611 for (child = menu->list; child; child = child->next) {
612 if (!menu_is_visible(child))
613 continue;
614 if (child->sym)
615 item_make("%s", menu_get_prompt(child));
616 else {
617 item_make("*** %s ***", menu_get_prompt(child));
618 item_set_tag(':');
619 }
620 item_set_data(child);
621 if (child->sym == active)
622 item_set_selected(1);
623 if (child->sym == sym_calc_choice(menu))
624 item_set_tag('X');
625 }
626 dialog_clear();
627 res = dialog_checklist(prompt ? prompt : "Main Menu",
628 radiolist_instructions,
629 MENUBOX_HEIGHT_MIN,
630 MENUBOX_WIDTH_MIN,
631 CHECKLIST_HEIGHT_MIN);
632 selected = item_activate_selected();
633 switch (res) {
634 case 0:
635 if (selected) {
636 child = item_data();
637 if (!child->sym)
638 break;
639
640 choice_set_value(menu, child->sym);
641 }
642 return;
643 case 1:
644 if (selected) {
645 child = item_data();
646 show_help(child);
647 active = child->sym;
648 } else
649 show_help(menu);
650 break;
651 case KEY_ESC:
652 return;
653 case -ERRDISPLAYTOOSMALL:
654 return;
655 }
656 }
657}
658
659static void conf_string(struct menu *menu)
660{
661 const char *prompt = menu_get_prompt(menu);
662
663 while (1) {
664 int res;
665 const char *heading;
666
667 switch (sym_get_type(menu->sym)) {
668 case S_INT:
669 heading = inputbox_instructions_int;
670 break;
671 case S_HEX:
672 heading = inputbox_instructions_hex;
673 break;
674 case S_STRING:
675 heading = inputbox_instructions_string;
676 break;
677 default:
678 heading = "Internal mconf error!";
679 }
680 dialog_clear();
681 res = dialog_inputbox(prompt ? prompt : "Main Menu",
682 heading, 10, 75,
683 sym_get_string_value(menu->sym));
684 switch (res) {
685 case 0:
686 if (sym_set_string_value(menu->sym, dialog_input_result))
687 return;
688 show_textbox(NULL, "You have made an invalid entry.", 5, 43);
689 break;
690 case 1:
691 show_help(menu);
692 break;
693 case KEY_ESC:
694 return;
695 }
696 }
697}
698
699static void conf_load(void)
700{
701
702 while (1) {
703 int res;
704 dialog_clear();
705 res = dialog_inputbox(NULL, load_config_text,
706 11, 55, filename);
707 switch(res) {
708 case 0:
709 if (!dialog_input_result[0])
710 return;
711 if (!conf_read(dialog_input_result)) {
712 set_config_filename(dialog_input_result);
713 conf_set_changed(true);
714 return;
715 }
716 show_textbox(NULL, "File does not exist!", 5, 38);
717 break;
718 case 1:
719 show_helptext("Load Alternate Configuration", load_config_help);
720 break;
721 case KEY_ESC:
722 return;
723 }
724 }
725}
726
727static void conf_save(void)
728{
729 while (1) {
730 int res;
731 dialog_clear();
732 res = dialog_inputbox(NULL, save_config_text,
733 11, 55, filename);
734 switch(res) {
735 case 0:
736 if (!dialog_input_result[0])
737 return;
738 if (!conf_write(dialog_input_result)) {
739 set_config_filename(dialog_input_result);
740 return;
741 }
742 show_textbox(NULL, "Can't create file!", 5, 60);
743 break;
744 case 1:
745 show_helptext("Save Alternate Configuration", save_config_help);
746 break;
747 case KEY_ESC:
748 return;
749 }
750 }
751}
752
753static void conf(struct menu *menu, struct menu *active_menu)
754{
755 struct menu *submenu;
756 const char *prompt = menu_get_prompt(menu);
757 struct subtitle_part stpart;
758 struct symbol *sym;
759 int res;
760 int s_scroll = 0;
761
762 if (menu != &rootmenu)
763 stpart.text = menu_get_prompt(menu);
764 else
765 stpart.text = NULL;
766 list_add_tail(&stpart.entries, &trail);
767
768 while (1) {
769 item_reset();
770 current_menu = menu;
771 build_conf(menu);
772 if (!child_count)
773 break;
774 set_subtitle();
775 dialog_clear();
776 res = dialog_menu(prompt ? prompt : "Main Menu",
777 menu_instructions,
778 active_menu, &s_scroll);
779 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
780 break;
781 if (item_count() != 0) {
782 if (!item_activate_selected())
783 continue;
784 if (!item_tag())
785 continue;
786 }
787 submenu = item_data();
788 active_menu = item_data();
789 if (submenu)
790 sym = submenu->sym;
791 else
792 sym = NULL;
793
794 switch (res) {
795 case 0:
796 switch (item_tag()) {
797 case 'm':
798 if (single_menu_mode)
799 submenu->data = (void *) (long) !submenu->data;
800 else
801 conf(submenu, NULL);
802 break;
803 case 't':
804 if (sym_is_choice(sym))
805 conf_choice(submenu);
806 else if (submenu->prompt->type == P_MENU)
807 conf(submenu, NULL);
808 break;
809 case 's':
810 conf_string(submenu);
811 break;
812 }
813 break;
814 case 2:
815 if (sym)
816 show_help(submenu);
817 else {
818 reset_subtitle();
819 show_helptext("README", mconf_readme);
820 }
821 break;
822 case 3:
823 reset_subtitle();
824 conf_save();
825 break;
826 case 4:
827 reset_subtitle();
828 conf_load();
829 break;
830 case 5:
831 if (item_is_tag('t')) {
832 if (sym_set_tristate_value(sym, yes))
833 break;
834 if (sym_set_tristate_value(sym, mod))
835 show_textbox(NULL, setmod_text, 6, 74);
836 }
837 break;
838 case 6:
839 if (item_is_tag('t'))
840 sym_set_tristate_value(sym, no);
841 break;
842 case 7:
843 if (item_is_tag('t'))
844 sym_set_tristate_value(sym, mod);
845 break;
846 case 8:
847 if (item_is_tag('t'))
848 sym_toggle_tristate_value(sym);
849 else if (item_is_tag('m'))
850 conf(submenu, NULL);
851 break;
852 case 9:
853 search_conf();
854 break;
855 case 10:
856 show_all_options = !show_all_options;
857 break;
858 }
859 }
860
861 list_del(trail.prev);
862}
863
864static void conf_message_callback(const char *s)
865{
866 if (save_and_exit) {
867 if (!silent)
868 printf("%s", s);
869 } else {
870 show_textbox(NULL, s, 6, 60);
871 }
872}
873
874static int handle_exit(void)
875{
876 int res;
877
878 save_and_exit = 1;
879 reset_subtitle();
880 dialog_clear();
881 if (conf_get_changed())
882 res = dialog_yesno(NULL,
883 "Do you wish to save your new configuration?\n"
884 "(Press <ESC><ESC> to continue kernel configuration.)",
885 6, 60);
886 else
887 res = -1;
888
889 end_dialog(saved_x, saved_y);
890
891 switch (res) {
892 case 0:
893 if (conf_write(filename)) {
894 fprintf(stderr, "\n\n"
895 "Error while writing of the configuration.\n"
896 "Your configuration changes were NOT saved."
897 "\n\n");
898 return 1;
899 }
900 conf_write_autoconf(0);
901 /* fall through */
902 case -1:
903 if (!silent)
904 printf("\n\n"
905 "*** End of the configuration.\n"
906 "*** Execute 'make' to start the build or try 'make help'."
907 "\n\n");
908 res = 0;
909 break;
910 default:
911 if (!silent)
912 fprintf(stderr, "\n\n"
913 "Your configuration changes were NOT saved."
914 "\n\n");
915 if (res != KEY_ESC)
916 res = 0;
917 }
918
919 return res;
920}
921
922static void sig_handler(int signo)
923{
924 exit(handle_exit());
925}
926
927int main(int ac, char **av)
928{
929 char *mode;
930 int res;
931
932 signal(SIGINT, sig_handler);
933
934 if (ac > 1 && strcmp(av[1], "-s") == 0) {
935 silent = 1;
936 /* Silence conf_read() until the real callback is set up */
937 conf_set_message_callback(NULL);
938 av++;
939 }
940 conf_parse(av[1]);
941 conf_read(NULL);
942
943 mode = getenv("MENUCONFIG_MODE");
944 if (mode) {
945 if (!strcasecmp(mode, "single_menu"))
946 single_menu_mode = 1;
947 }
948
949 if (init_dialog(NULL)) {
950 fprintf(stderr, "Your display is too small to run Menuconfig!\n");
951 fprintf(stderr, "It must be at least 19 lines by 80 columns.\n");
952 return 1;
953 }
954
955 set_config_filename(conf_get_configname());
956 conf_set_message_callback(conf_message_callback);
957 do {
958 conf(&rootmenu, NULL);
959 res = handle_exit();
960 } while (res == KEY_ESC);
961
962 return res;
963}