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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com>
4 *
5 * Derived from menuconfig.
6 */
7#ifndef _GNU_SOURCE
8#define _GNU_SOURCE
9#endif
10#include <string.h>
11#include <strings.h>
12#include <stdlib.h>
13
14#include "lkc.h"
15#include "nconf.h"
16#include <ctype.h>
17
18static const char nconf_global_help[] =
19"Help windows\n"
20"------------\n"
21"o Global help: Unless in a data entry window, pressing <F1> will give \n"
22" you the global help window, which you are just reading.\n"
23"\n"
24"o A short version of the global help is available by pressing <F3>.\n"
25"\n"
26"o Local help: To get help related to the current menu entry, use any\n"
27" of <?> <h>, or if in a data entry window then press <F1>.\n"
28"\n"
29"\n"
30"Menu entries\n"
31"------------\n"
32"This interface lets you select features and parameters for the kernel\n"
33"build. Kernel features can either be built-in, modularized, or removed.\n"
34"Parameters must be entered as text or decimal or hexadecimal numbers.\n"
35"\n"
36"Menu entries beginning with following braces represent features that\n"
37" [ ] can be built in or removed\n"
38" < > can be built in, modularized or removed\n"
39" { } can be built in or modularized, are selected by another feature\n"
40" - - are selected by another feature\n"
41" XXX cannot be selected. Symbol Info <F2> tells you why.\n"
42"*, M or whitespace inside braces means to build in, build as a module\n"
43"or to exclude the feature respectively.\n"
44"\n"
45"To change any of these features, highlight it with the movement keys\n"
46"listed below and press <y> to build it in, <m> to make it a module or\n"
47"<n> to remove it. You may press the <Space> key to cycle through the\n"
48"available options.\n"
49"\n"
50"A trailing \"--->\" designates a submenu, a trailing \"----\" an\n"
51"empty submenu.\n"
52"\n"
53"Menu navigation keys\n"
54"----------------------------------------------------------------------\n"
55"Linewise up <Up>\n"
56"Linewise down <Down>\n"
57"Pagewise up <Page Up>\n"
58"Pagewise down <Page Down>\n"
59"First entry <Home>\n"
60"Last entry <End>\n"
61"Enter a submenu <Right> <Enter>\n"
62"Go back to parent menu <Left> <Esc> <F5>\n"
63"Close a help window <Enter> <Esc> <F5>\n"
64"Close entry window, apply <Enter>\n"
65"Close entry window, forget <Esc> <F5>\n"
66"Start incremental, case-insensitive search for STRING in menu entries,\n"
67" no regex support, STRING is displayed in upper left corner\n"
68" </>STRING\n"
69" Remove last character <Backspace>\n"
70" Jump to next hit <Down>\n"
71" Jump to previous hit <Up>\n"
72"Exit menu search mode </> <Esc>\n"
73"Search for configuration variables with or without leading CONFIG_\n"
74" <F8>RegExpr<Enter>\n"
75"Verbose search help <F8><F1>\n"
76"----------------------------------------------------------------------\n"
77"\n"
78"Unless in a data entry window, key <1> may be used instead of <F1>,\n"
79"<2> instead of <F2>, etc.\n"
80"\n"
81"\n"
82"Radiolist (Choice list)\n"
83"-----------------------\n"
84"Use the movement keys listed above to select the option you wish to set\n"
85"and press <Space>.\n"
86"\n"
87"\n"
88"Data entry\n"
89"----------\n"
90"Enter the requested information and press <Enter>. Hexadecimal values\n"
91"may be entered without the \"0x\" prefix.\n"
92"\n"
93"\n"
94"Text Box (Help Window)\n"
95"----------------------\n"
96"Use movement keys as listed in table above.\n"
97"\n"
98"Press any of <Enter> <Esc> <q> <F5> <F9> to exit.\n"
99"\n"
100"\n"
101"Alternate configuration files\n"
102"-----------------------------\n"
103"nconfig supports switching between different configurations.\n"
104"Press <F6> to save your current configuration. Press <F7> and enter\n"
105"a file name to load a previously saved configuration.\n"
106"\n"
107"\n"
108"Terminal configuration\n"
109"----------------------\n"
110"If you use nconfig in a xterm window, make sure your TERM environment\n"
111"variable specifies a terminal configuration which supports at least\n"
112"16 colors. Otherwise nconfig will look rather bad.\n"
113"\n"
114"If the \"stty size\" command reports the current terminalsize correctly,\n"
115"nconfig will adapt to sizes larger than the traditional 80x25 \"standard\"\n"
116"and display longer menus properly.\n"
117"\n"
118"\n"
119"Single menu mode\n"
120"----------------\n"
121"If you prefer to have all of the menu entries listed in a single menu,\n"
122"rather than the default multimenu hierarchy, run nconfig with\n"
123"NCONFIG_MODE environment variable set to single_menu. Example:\n"
124"\n"
125"make NCONFIG_MODE=single_menu nconfig\n"
126"\n"
127"<Enter> will then unfold the appropriate category, or fold it if it\n"
128"is already unfolded. Folded menu entries will be designated by a\n"
129"leading \"++>\" and unfolded entries by a leading \"-->\".\n"
130"\n"
131"Note that this mode can eventually be a little more CPU expensive than\n"
132"the default mode, especially with a larger number of unfolded submenus.\n"
133"\n",
134menu_no_f_instructions[] =
135"Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
136"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
137"\n"
138"Use the following keys to navigate the menus:\n"
139"Move up or down with <Up> and <Down>.\n"
140"Enter a submenu with <Enter> or <Right>.\n"
141"Exit a submenu to its parent menu with <Esc> or <Left>.\n"
142"Pressing <y> includes, <n> excludes, <m> modularizes features.\n"
143"Pressing <Space> cycles through the available options.\n"
144"To search for menu entries press </>.\n"
145"<Esc> always leaves the current window.\n"
146"\n"
147"You do not have function keys support.\n"
148"Press <1> instead of <F1>, <2> instead of <F2>, etc.\n"
149"For verbose global help use key <1>.\n"
150"For help related to the current menu entry press <?> or <h>.\n",
151menu_instructions[] =
152"Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
153"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
154"\n"
155"Use the following keys to navigate the menus:\n"
156"Move up or down with <Up> or <Down>.\n"
157"Enter a submenu with <Enter> or <Right>.\n"
158"Exit a submenu to its parent menu with <Esc> or <Left>.\n"
159"Pressing <y> includes, <n> excludes, <m> modularizes features.\n"
160"Pressing <Space> cycles through the available options.\n"
161"To search for menu entries press </>.\n"
162"<Esc> always leaves the current window.\n"
163"\n"
164"Pressing <1> may be used instead of <F1>, <2> instead of <F2>, etc.\n"
165"For verbose global help press <F1>.\n"
166"For help related to the current menu entry press <?> or <h>.\n",
167radiolist_instructions[] =
168"Press <Up>, <Down>, <Home> or <End> to navigate a radiolist, select\n"
169"with <Space>.\n"
170"For help related to the current entry press <?> or <h>.\n"
171"For global help press <F1>.\n",
172inputbox_instructions_int[] =
173"Please enter a decimal value.\n"
174"Fractions will not be accepted.\n"
175"Press <Enter> to apply, <Esc> to cancel.",
176inputbox_instructions_hex[] =
177"Please enter a hexadecimal value.\n"
178"Press <Enter> to apply, <Esc> to cancel.",
179inputbox_instructions_string[] =
180"Please enter a string value.\n"
181"Press <Enter> to apply, <Esc> to cancel.",
182setmod_text[] =
183"This feature depends on another feature which has been configured as a\n"
184"module. As a result, the current feature will be built as a module too.",
185load_config_text[] =
186"Enter the name of the configuration file you wish to load.\n"
187"Accept the name shown to restore the configuration you last\n"
188"retrieved. Leave empty to abort.",
189load_config_help[] =
190"For various reasons, one may wish to keep several different\n"
191"configurations available on a single machine.\n"
192"\n"
193"If you have saved a previous configuration in a file other than the\n"
194"default one, entering its name here will allow you to load and modify\n"
195"that configuration.\n"
196"\n"
197"Leave empty to abort.\n",
198save_config_text[] =
199"Enter a filename to which this configuration should be saved\n"
200"as an alternate. Leave empty to abort.",
201save_config_help[] =
202"For various reasons, one may wish to keep several different\n"
203"configurations available on a single machine.\n"
204"\n"
205"Entering a file name here will allow you to later retrieve, modify\n"
206"and use the current configuration as an alternate to whatever\n"
207"configuration options you have selected at that time.\n"
208"\n"
209"Leave empty to abort.\n",
210search_help[] =
211"Search for symbols (configuration variable names CONFIG_*) and display\n"
212"their relations. Regular expressions are supported.\n"
213"Example: Search for \"^FOO\".\n"
214"Result:\n"
215"-----------------------------------------------------------------\n"
216"Symbol: FOO [ = m]\n"
217"Prompt: Foo bus is used to drive the bar HW\n"
218"Defined at drivers/pci/Kconfig:47\n"
219"Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
220"Location:\n"
221" -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
222" -> PCI support (PCI [ = y])\n"
223" -> PCI access mode (<choice> [ = y])\n"
224"Selects: LIBCRC32\n"
225"Selected by: BAR\n"
226"-----------------------------------------------------------------\n"
227"o The line 'Prompt:' shows the text displayed for this symbol in\n"
228" the menu hierarchy.\n"
229"o The 'Defined at' line tells at what file / line number the symbol is\n"
230" defined.\n"
231"o The 'Depends on:' line lists symbols that need to be defined for\n"
232" this symbol to be visible and selectable in the menu.\n"
233"o The 'Location:' lines tell, where in the menu structure this symbol\n"
234" is located. A location followed by a [ = y] indicates that this is\n"
235" a selectable menu item, and the current value is displayed inside\n"
236" brackets.\n"
237"o The 'Selects:' line tells, what symbol will be automatically selected\n"
238" if this symbol is selected (y or m).\n"
239"o The 'Selected by' line tells what symbol has selected this symbol.\n"
240"\n"
241"Only relevant lines are shown.\n"
242"\n\n"
243"Search examples:\n"
244"USB => find all symbols containing USB\n"
245"^USB => find all symbols starting with USB\n"
246"USB$ => find all symbols ending with USB\n"
247"\n";
248
249struct mitem {
250 char str[256];
251 char tag;
252 void *usrptr;
253 int is_visible;
254};
255
256#define MAX_MENU_ITEMS 4096
257static int show_all_items;
258static int indent;
259static struct menu *current_menu;
260static int child_count;
261static int single_menu_mode;
262/* the window in which all information appears */
263static WINDOW *main_window;
264/* the largest size of the menu window */
265static int mwin_max_lines;
266static int mwin_max_cols;
267/* the window in which we show option buttons */
268static MENU *curses_menu;
269static ITEM *curses_menu_items[MAX_MENU_ITEMS];
270static struct mitem k_menu_items[MAX_MENU_ITEMS];
271static unsigned int items_num;
272static int global_exit;
273/* the currently selected button */
274static const char *current_instructions = menu_instructions;
275
276static char *dialog_input_result;
277static int dialog_input_result_len;
278
279static void conf(struct menu *menu);
280static void conf_choice(struct menu *menu);
281static void conf_string(struct menu *menu);
282static void conf_load(void);
283static void conf_save(void);
284static void show_help(struct menu *menu);
285static int do_exit(void);
286static void setup_windows(void);
287static void search_conf(void);
288
289typedef void (*function_key_handler_t)(int *key, struct menu *menu);
290static void handle_f1(int *key, struct menu *current_item);
291static void handle_f2(int *key, struct menu *current_item);
292static void handle_f3(int *key, struct menu *current_item);
293static void handle_f4(int *key, struct menu *current_item);
294static void handle_f5(int *key, struct menu *current_item);
295static void handle_f6(int *key, struct menu *current_item);
296static void handle_f7(int *key, struct menu *current_item);
297static void handle_f8(int *key, struct menu *current_item);
298static void handle_f9(int *key, struct menu *current_item);
299
300struct function_keys {
301 const char *key_str;
302 const char *func;
303 function_key key;
304 function_key_handler_t handler;
305};
306
307static const int function_keys_num = 9;
308static struct function_keys function_keys[] = {
309 {
310 .key_str = "F1",
311 .func = "Help",
312 .key = F_HELP,
313 .handler = handle_f1,
314 },
315 {
316 .key_str = "F2",
317 .func = "SymInfo",
318 .key = F_SYMBOL,
319 .handler = handle_f2,
320 },
321 {
322 .key_str = "F3",
323 .func = "Help 2",
324 .key = F_INSTS,
325 .handler = handle_f3,
326 },
327 {
328 .key_str = "F4",
329 .func = "ShowAll",
330 .key = F_CONF,
331 .handler = handle_f4,
332 },
333 {
334 .key_str = "F5",
335 .func = "Back",
336 .key = F_BACK,
337 .handler = handle_f5,
338 },
339 {
340 .key_str = "F6",
341 .func = "Save",
342 .key = F_SAVE,
343 .handler = handle_f6,
344 },
345 {
346 .key_str = "F7",
347 .func = "Load",
348 .key = F_LOAD,
349 .handler = handle_f7,
350 },
351 {
352 .key_str = "F8",
353 .func = "SymSearch",
354 .key = F_SEARCH,
355 .handler = handle_f8,
356 },
357 {
358 .key_str = "F9",
359 .func = "Exit",
360 .key = F_EXIT,
361 .handler = handle_f9,
362 },
363};
364
365static void print_function_line(void)
366{
367 int i;
368 int offset = 1;
369 const int skip = 1;
370 int lines = getmaxy(stdscr);
371
372 for (i = 0; i < function_keys_num; i++) {
373 wattrset(main_window, attr_function_highlight);
374 mvwprintw(main_window, lines-3, offset,
375 "%s",
376 function_keys[i].key_str);
377 wattrset(main_window, attr_function_text);
378 offset += strlen(function_keys[i].key_str);
379 mvwprintw(main_window, lines-3,
380 offset, "%s",
381 function_keys[i].func);
382 offset += strlen(function_keys[i].func) + skip;
383 }
384 wattrset(main_window, attr_normal);
385}
386
387/* help */
388static void handle_f1(int *key, struct menu *current_item)
389{
390 show_scroll_win(main_window,
391 "Global help", nconf_global_help);
392 return;
393}
394
395/* symbole help */
396static void handle_f2(int *key, struct menu *current_item)
397{
398 show_help(current_item);
399 return;
400}
401
402/* instructions */
403static void handle_f3(int *key, struct menu *current_item)
404{
405 show_scroll_win(main_window,
406 "Short help",
407 current_instructions);
408 return;
409}
410
411/* config */
412static void handle_f4(int *key, struct menu *current_item)
413{
414 int res = btn_dialog(main_window,
415 "Show all symbols?",
416 2,
417 " <Show All> ",
418 "<Don't show all>");
419 if (res == 0)
420 show_all_items = 1;
421 else if (res == 1)
422 show_all_items = 0;
423
424 return;
425}
426
427/* back */
428static void handle_f5(int *key, struct menu *current_item)
429{
430 *key = KEY_LEFT;
431 return;
432}
433
434/* save */
435static void handle_f6(int *key, struct menu *current_item)
436{
437 conf_save();
438 return;
439}
440
441/* load */
442static void handle_f7(int *key, struct menu *current_item)
443{
444 conf_load();
445 return;
446}
447
448/* search */
449static void handle_f8(int *key, struct menu *current_item)
450{
451 search_conf();
452 return;
453}
454
455/* exit */
456static void handle_f9(int *key, struct menu *current_item)
457{
458 do_exit();
459 return;
460}
461
462/* return != 0 to indicate the key was handles */
463static int process_special_keys(int *key, struct menu *menu)
464{
465 int i;
466
467 if (*key == KEY_RESIZE) {
468 setup_windows();
469 return 1;
470 }
471
472 for (i = 0; i < function_keys_num; i++) {
473 if (*key == KEY_F(function_keys[i].key) ||
474 *key == '0' + function_keys[i].key){
475 function_keys[i].handler(key, menu);
476 return 1;
477 }
478 }
479
480 return 0;
481}
482
483static void clean_items(void)
484{
485 int i;
486 for (i = 0; curses_menu_items[i]; i++)
487 free_item(curses_menu_items[i]);
488 bzero(curses_menu_items, sizeof(curses_menu_items));
489 bzero(k_menu_items, sizeof(k_menu_items));
490 items_num = 0;
491}
492
493typedef enum {MATCH_TINKER_PATTERN_UP, MATCH_TINKER_PATTERN_DOWN,
494 FIND_NEXT_MATCH_DOWN, FIND_NEXT_MATCH_UP} match_f;
495
496/* return the index of the matched item, or -1 if no such item exists */
497static int get_mext_match(const char *match_str, match_f flag)
498{
499 int match_start, index;
500
501 /* Do not search if the menu is empty (i.e. items_num == 0) */
502 match_start = item_index(current_item(curses_menu));
503 if (match_start == ERR)
504 return -1;
505
506 if (flag == FIND_NEXT_MATCH_DOWN)
507 ++match_start;
508 else if (flag == FIND_NEXT_MATCH_UP)
509 --match_start;
510
511 match_start = (match_start + items_num) % items_num;
512 index = match_start;
513 while (true) {
514 char *str = k_menu_items[index].str;
515 if (strcasestr(str, match_str) != NULL)
516 return index;
517 if (flag == FIND_NEXT_MATCH_UP ||
518 flag == MATCH_TINKER_PATTERN_UP)
519 --index;
520 else
521 ++index;
522 index = (index + items_num) % items_num;
523 if (index == match_start)
524 return -1;
525 }
526}
527
528/* Make a new item. */
529static void item_make(struct menu *menu, char tag, const char *fmt, ...)
530{
531 va_list ap;
532
533 if (items_num > MAX_MENU_ITEMS-1)
534 return;
535
536 bzero(&k_menu_items[items_num], sizeof(k_menu_items[0]));
537 k_menu_items[items_num].tag = tag;
538 k_menu_items[items_num].usrptr = menu;
539 if (menu != NULL)
540 k_menu_items[items_num].is_visible =
541 menu_is_visible(menu);
542 else
543 k_menu_items[items_num].is_visible = 1;
544
545 va_start(ap, fmt);
546 vsnprintf(k_menu_items[items_num].str,
547 sizeof(k_menu_items[items_num].str),
548 fmt, ap);
549 va_end(ap);
550
551 if (!k_menu_items[items_num].is_visible)
552 memcpy(k_menu_items[items_num].str, "XXX", 3);
553
554 curses_menu_items[items_num] = new_item(
555 k_menu_items[items_num].str,
556 k_menu_items[items_num].str);
557 set_item_userptr(curses_menu_items[items_num],
558 &k_menu_items[items_num]);
559 /*
560 if (!k_menu_items[items_num].is_visible)
561 item_opts_off(curses_menu_items[items_num], O_SELECTABLE);
562 */
563
564 items_num++;
565 curses_menu_items[items_num] = NULL;
566}
567
568/* very hackish. adds a string to the last item added */
569static void item_add_str(const char *fmt, ...)
570{
571 va_list ap;
572 int index = items_num-1;
573 char new_str[256];
574 char tmp_str[256];
575
576 if (index < 0)
577 return;
578
579 va_start(ap, fmt);
580 vsnprintf(new_str, sizeof(new_str), fmt, ap);
581 va_end(ap);
582 snprintf(tmp_str, sizeof(tmp_str), "%s%s",
583 k_menu_items[index].str, new_str);
584 strncpy(k_menu_items[index].str,
585 tmp_str,
586 sizeof(k_menu_items[index].str));
587
588 free_item(curses_menu_items[index]);
589 curses_menu_items[index] = new_item(
590 k_menu_items[index].str,
591 k_menu_items[index].str);
592 set_item_userptr(curses_menu_items[index],
593 &k_menu_items[index]);
594}
595
596/* get the tag of the currently selected item */
597static char item_tag(void)
598{
599 ITEM *cur;
600 struct mitem *mcur;
601
602 cur = current_item(curses_menu);
603 if (cur == NULL)
604 return 0;
605 mcur = (struct mitem *) item_userptr(cur);
606 return mcur->tag;
607}
608
609static int curses_item_index(void)
610{
611 return item_index(current_item(curses_menu));
612}
613
614static void *item_data(void)
615{
616 ITEM *cur;
617 struct mitem *mcur;
618
619 cur = current_item(curses_menu);
620 if (!cur)
621 return NULL;
622 mcur = (struct mitem *) item_userptr(cur);
623 return mcur->usrptr;
624
625}
626
627static int item_is_tag(char tag)
628{
629 return item_tag() == tag;
630}
631
632static char filename[PATH_MAX+1];
633static char menu_backtitle[PATH_MAX+128];
634static void set_config_filename(const char *config_filename)
635{
636 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
637 config_filename, rootmenu.prompt->text);
638
639 snprintf(filename, sizeof(filename), "%s", config_filename);
640}
641
642/* return = 0 means we are successful.
643 * -1 means go on doing what you were doing
644 */
645static int do_exit(void)
646{
647 int res;
648 if (!conf_get_changed()) {
649 global_exit = 1;
650 return 0;
651 }
652 res = btn_dialog(main_window,
653 "Do you wish to save your new configuration?\n"
654 "<ESC> to cancel and resume nconfig.",
655 2,
656 " <save> ",
657 "<don't save>");
658 if (res == KEY_EXIT) {
659 global_exit = 0;
660 return -1;
661 }
662
663 /* if we got here, the user really wants to exit */
664 switch (res) {
665 case 0:
666 res = conf_write(filename);
667 if (res)
668 btn_dialog(
669 main_window,
670 "Error during writing of configuration.\n"
671 "Your configuration changes were NOT saved.",
672 1,
673 "<OK>");
674 conf_write_autoconf(0);
675 break;
676 default:
677 btn_dialog(
678 main_window,
679 "Your configuration changes were NOT saved.",
680 1,
681 "<OK>");
682 break;
683 }
684 global_exit = 1;
685 return 0;
686}
687
688
689static void search_conf(void)
690{
691 struct symbol **sym_arr;
692 struct gstr res;
693 struct gstr title;
694 char *dialog_input;
695 int dres;
696
697 title = str_new();
698 str_printf( &title, "Enter (sub)string or regexp to search for "
699 "(with or without \"%s\")", CONFIG_);
700
701again:
702 dres = dialog_inputbox(main_window,
703 "Search Configuration Parameter",
704 str_get(&title),
705 "", &dialog_input_result, &dialog_input_result_len);
706 switch (dres) {
707 case 0:
708 break;
709 case 1:
710 show_scroll_win(main_window,
711 "Search Configuration", search_help);
712 goto again;
713 default:
714 str_free(&title);
715 return;
716 }
717
718 /* strip the prefix if necessary */
719 dialog_input = dialog_input_result;
720 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
721 dialog_input += strlen(CONFIG_);
722
723 sym_arr = sym_re_search(dialog_input);
724 res = get_relations_str(sym_arr, NULL);
725 free(sym_arr);
726 show_scroll_win(main_window,
727 "Search Results", str_get(&res));
728 str_free(&res);
729 str_free(&title);
730}
731
732
733static void build_conf(struct menu *menu)
734{
735 struct symbol *sym;
736 struct property *prop;
737 struct menu *child;
738 int type, tmp, doint = 2;
739 tristate val;
740 char ch;
741
742 if (!menu || (!show_all_items && !menu_is_visible(menu)))
743 return;
744
745 sym = menu->sym;
746 prop = menu->prompt;
747 if (!sym) {
748 if (prop && menu != current_menu) {
749 const char *prompt = menu_get_prompt(menu);
750 enum prop_type ptype;
751 ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
752 switch (ptype) {
753 case P_MENU:
754 child_count++;
755 if (single_menu_mode) {
756 item_make(menu, 'm',
757 "%s%*c%s",
758 menu->data ? "-->" : "++>",
759 indent + 1, ' ', prompt);
760 } else
761 item_make(menu, 'm',
762 " %*c%s %s",
763 indent + 1, ' ', prompt,
764 menu_is_empty(menu) ? "----" : "--->");
765
766 if (single_menu_mode && menu->data)
767 goto conf_childs;
768 return;
769 case P_COMMENT:
770 if (prompt) {
771 child_count++;
772 item_make(menu, ':',
773 " %*c*** %s ***",
774 indent + 1, ' ',
775 prompt);
776 }
777 break;
778 default:
779 if (prompt) {
780 child_count++;
781 item_make(menu, ':', "---%*c%s",
782 indent + 1, ' ',
783 prompt);
784 }
785 }
786 } else
787 doint = 0;
788 goto conf_childs;
789 }
790
791 type = sym_get_type(sym);
792 if (sym_is_choice(sym)) {
793 struct symbol *def_sym = sym_get_choice_value(sym);
794 struct menu *def_menu = NULL;
795
796 child_count++;
797 for (child = menu->list; child; child = child->next) {
798 if (menu_is_visible(child) && child->sym == def_sym)
799 def_menu = child;
800 }
801
802 val = sym_get_tristate_value(sym);
803 if (sym_is_changeable(sym)) {
804 switch (type) {
805 case S_BOOLEAN:
806 item_make(menu, 't', "[%c]",
807 val == no ? ' ' : '*');
808 break;
809 case S_TRISTATE:
810 switch (val) {
811 case yes:
812 ch = '*';
813 break;
814 case mod:
815 ch = 'M';
816 break;
817 default:
818 ch = ' ';
819 break;
820 }
821 item_make(menu, 't', "<%c>", ch);
822 break;
823 }
824 } else {
825 item_make(menu, def_menu ? 't' : ':', " ");
826 }
827
828 item_add_str("%*c%s", indent + 1,
829 ' ', menu_get_prompt(menu));
830 if (val == yes) {
831 if (def_menu) {
832 item_add_str(" (%s)",
833 menu_get_prompt(def_menu));
834 item_add_str(" --->");
835 if (def_menu->list) {
836 indent += 2;
837 build_conf(def_menu);
838 indent -= 2;
839 }
840 }
841 return;
842 }
843 } else {
844 if (menu == current_menu) {
845 item_make(menu, ':',
846 "---%*c%s", indent + 1,
847 ' ', menu_get_prompt(menu));
848 goto conf_childs;
849 }
850 child_count++;
851 val = sym_get_tristate_value(sym);
852 if (sym_is_choice_value(sym) && val == yes) {
853 item_make(menu, ':', " ");
854 } else {
855 switch (type) {
856 case S_BOOLEAN:
857 if (sym_is_changeable(sym))
858 item_make(menu, 't', "[%c]",
859 val == no ? ' ' : '*');
860 else
861 item_make(menu, 't', "-%c-",
862 val == no ? ' ' : '*');
863 break;
864 case S_TRISTATE:
865 switch (val) {
866 case yes:
867 ch = '*';
868 break;
869 case mod:
870 ch = 'M';
871 break;
872 default:
873 ch = ' ';
874 break;
875 }
876 if (sym_is_changeable(sym)) {
877 if (sym->rev_dep.tri == mod)
878 item_make(menu,
879 't', "{%c}", ch);
880 else
881 item_make(menu,
882 't', "<%c>", ch);
883 } else
884 item_make(menu, 't', "-%c-", ch);
885 break;
886 default:
887 tmp = 2 + strlen(sym_get_string_value(sym));
888 item_make(menu, 's', " (%s)",
889 sym_get_string_value(sym));
890 tmp = indent - tmp + 4;
891 if (tmp < 0)
892 tmp = 0;
893 item_add_str("%*c%s%s", tmp, ' ',
894 menu_get_prompt(menu),
895 (sym_has_value(sym) ||
896 !sym_is_changeable(sym)) ? "" :
897 " (NEW)");
898 goto conf_childs;
899 }
900 }
901 item_add_str("%*c%s%s", indent + 1, ' ',
902 menu_get_prompt(menu),
903 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
904 "" : " (NEW)");
905 if (menu->prompt && menu->prompt->type == P_MENU) {
906 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
907 return;
908 }
909 }
910
911conf_childs:
912 indent += doint;
913 for (child = menu->list; child; child = child->next)
914 build_conf(child);
915 indent -= doint;
916}
917
918static void reset_menu(void)
919{
920 unpost_menu(curses_menu);
921 clean_items();
922}
923
924/* adjust the menu to show this item.
925 * prefer not to scroll the menu if possible*/
926static void center_item(int selected_index, int *last_top_row)
927{
928 int toprow;
929
930 set_top_row(curses_menu, *last_top_row);
931 toprow = top_row(curses_menu);
932 if (selected_index < toprow ||
933 selected_index >= toprow+mwin_max_lines) {
934 toprow = max(selected_index-mwin_max_lines/2, 0);
935 if (toprow >= item_count(curses_menu)-mwin_max_lines)
936 toprow = item_count(curses_menu)-mwin_max_lines;
937 set_top_row(curses_menu, toprow);
938 }
939 set_current_item(curses_menu,
940 curses_menu_items[selected_index]);
941 *last_top_row = toprow;
942 post_menu(curses_menu);
943 refresh_all_windows(main_window);
944}
945
946/* this function assumes reset_menu has been called before */
947static void show_menu(const char *prompt, const char *instructions,
948 int selected_index, int *last_top_row)
949{
950 int maxx, maxy;
951 WINDOW *menu_window;
952
953 current_instructions = instructions;
954
955 clear();
956 print_in_middle(stdscr, 1, getmaxx(stdscr),
957 menu_backtitle,
958 attr_main_heading);
959
960 wattrset(main_window, attr_main_menu_box);
961 box(main_window, 0, 0);
962 wattrset(main_window, attr_main_menu_heading);
963 mvwprintw(main_window, 0, 3, " %s ", prompt);
964 wattrset(main_window, attr_normal);
965
966 set_menu_items(curses_menu, curses_menu_items);
967
968 /* position the menu at the middle of the screen */
969 scale_menu(curses_menu, &maxy, &maxx);
970 maxx = min(maxx, mwin_max_cols-2);
971 maxy = mwin_max_lines;
972 menu_window = derwin(main_window,
973 maxy,
974 maxx,
975 2,
976 (mwin_max_cols-maxx)/2);
977 keypad(menu_window, TRUE);
978 set_menu_win(curses_menu, menu_window);
979 set_menu_sub(curses_menu, menu_window);
980
981 /* must reassert this after changing items, otherwise returns to a
982 * default of 16
983 */
984 set_menu_format(curses_menu, maxy, 1);
985 center_item(selected_index, last_top_row);
986 set_menu_format(curses_menu, maxy, 1);
987
988 print_function_line();
989
990 /* Post the menu */
991 post_menu(curses_menu);
992 refresh_all_windows(main_window);
993}
994
995static void adj_match_dir(match_f *match_direction)
996{
997 if (*match_direction == FIND_NEXT_MATCH_DOWN)
998 *match_direction =
999 MATCH_TINKER_PATTERN_DOWN;
1000 else if (*match_direction == FIND_NEXT_MATCH_UP)
1001 *match_direction =
1002 MATCH_TINKER_PATTERN_UP;
1003 /* else, do no change.. */
1004}
1005
1006struct match_state
1007{
1008 int in_search;
1009 match_f match_direction;
1010 char pattern[256];
1011};
1012
1013/* Return 0 means I have handled the key. In such a case, ans should hold the
1014 * item to center, or -1 otherwise.
1015 * Else return -1 .
1016 */
1017static int do_match(int key, struct match_state *state, int *ans)
1018{
1019 char c = (char) key;
1020 int terminate_search = 0;
1021 *ans = -1;
1022 if (key == '/' || (state->in_search && key == 27)) {
1023 move(0, 0);
1024 refresh();
1025 clrtoeol();
1026 state->in_search = 1-state->in_search;
1027 bzero(state->pattern, sizeof(state->pattern));
1028 state->match_direction = MATCH_TINKER_PATTERN_DOWN;
1029 return 0;
1030 } else if (!state->in_search)
1031 return 1;
1032
1033 if (isalnum(c) || isgraph(c) || c == ' ') {
1034 state->pattern[strlen(state->pattern)] = c;
1035 state->pattern[strlen(state->pattern)] = '\0';
1036 adj_match_dir(&state->match_direction);
1037 *ans = get_mext_match(state->pattern,
1038 state->match_direction);
1039 } else if (key == KEY_DOWN) {
1040 state->match_direction = FIND_NEXT_MATCH_DOWN;
1041 *ans = get_mext_match(state->pattern,
1042 state->match_direction);
1043 } else if (key == KEY_UP) {
1044 state->match_direction = FIND_NEXT_MATCH_UP;
1045 *ans = get_mext_match(state->pattern,
1046 state->match_direction);
1047 } else if (key == KEY_BACKSPACE || key == 8 || key == 127) {
1048 state->pattern[strlen(state->pattern)-1] = '\0';
1049 adj_match_dir(&state->match_direction);
1050 } else
1051 terminate_search = 1;
1052
1053 if (terminate_search) {
1054 state->in_search = 0;
1055 bzero(state->pattern, sizeof(state->pattern));
1056 move(0, 0);
1057 refresh();
1058 clrtoeol();
1059 return -1;
1060 }
1061 return 0;
1062}
1063
1064static void conf(struct menu *menu)
1065{
1066 struct menu *submenu = NULL;
1067 struct symbol *sym;
1068 int res;
1069 int current_index = 0;
1070 int last_top_row = 0;
1071 struct match_state match_state = {
1072 .in_search = 0,
1073 .match_direction = MATCH_TINKER_PATTERN_DOWN,
1074 .pattern = "",
1075 };
1076
1077 while (!global_exit) {
1078 reset_menu();
1079 current_menu = menu;
1080 build_conf(menu);
1081 if (!child_count)
1082 break;
1083
1084 show_menu(menu_get_prompt(menu), menu_instructions,
1085 current_index, &last_top_row);
1086 keypad((menu_win(curses_menu)), TRUE);
1087 while (!global_exit) {
1088 if (match_state.in_search) {
1089 mvprintw(0, 0,
1090 "searching: %s", match_state.pattern);
1091 clrtoeol();
1092 }
1093 refresh_all_windows(main_window);
1094 res = wgetch(menu_win(curses_menu));
1095 if (!res)
1096 break;
1097 if (do_match(res, &match_state, ¤t_index) == 0) {
1098 if (current_index != -1)
1099 center_item(current_index,
1100 &last_top_row);
1101 continue;
1102 }
1103 if (process_special_keys(&res,
1104 (struct menu *) item_data()))
1105 break;
1106 switch (res) {
1107 case KEY_DOWN:
1108 menu_driver(curses_menu, REQ_DOWN_ITEM);
1109 break;
1110 case KEY_UP:
1111 menu_driver(curses_menu, REQ_UP_ITEM);
1112 break;
1113 case KEY_NPAGE:
1114 menu_driver(curses_menu, REQ_SCR_DPAGE);
1115 break;
1116 case KEY_PPAGE:
1117 menu_driver(curses_menu, REQ_SCR_UPAGE);
1118 break;
1119 case KEY_HOME:
1120 menu_driver(curses_menu, REQ_FIRST_ITEM);
1121 break;
1122 case KEY_END:
1123 menu_driver(curses_menu, REQ_LAST_ITEM);
1124 break;
1125 case 'h':
1126 case '?':
1127 show_help((struct menu *) item_data());
1128 break;
1129 }
1130 if (res == 10 || res == 27 ||
1131 res == 32 || res == 'n' || res == 'y' ||
1132 res == KEY_LEFT || res == KEY_RIGHT ||
1133 res == 'm')
1134 break;
1135 refresh_all_windows(main_window);
1136 }
1137
1138 refresh_all_windows(main_window);
1139 /* if ESC or left*/
1140 if (res == 27 || (menu != &rootmenu && res == KEY_LEFT))
1141 break;
1142
1143 /* remember location in the menu */
1144 last_top_row = top_row(curses_menu);
1145 current_index = curses_item_index();
1146
1147 if (!item_tag())
1148 continue;
1149
1150 submenu = (struct menu *) item_data();
1151 if (!submenu || !menu_is_visible(submenu))
1152 continue;
1153 sym = submenu->sym;
1154
1155 switch (res) {
1156 case ' ':
1157 if (item_is_tag('t'))
1158 sym_toggle_tristate_value(sym);
1159 else if (item_is_tag('m'))
1160 conf(submenu);
1161 break;
1162 case KEY_RIGHT:
1163 case 10: /* ENTER WAS PRESSED */
1164 switch (item_tag()) {
1165 case 'm':
1166 if (single_menu_mode)
1167 submenu->data =
1168 (void *) (long) !submenu->data;
1169 else
1170 conf(submenu);
1171 break;
1172 case 't':
1173 if (sym_is_choice(sym) &&
1174 sym_get_tristate_value(sym) == yes)
1175 conf_choice(submenu);
1176 else if (submenu->prompt &&
1177 submenu->prompt->type == P_MENU)
1178 conf(submenu);
1179 else if (res == 10)
1180 sym_toggle_tristate_value(sym);
1181 break;
1182 case 's':
1183 conf_string(submenu);
1184 break;
1185 }
1186 break;
1187 case 'y':
1188 if (item_is_tag('t')) {
1189 if (sym_set_tristate_value(sym, yes))
1190 break;
1191 if (sym_set_tristate_value(sym, mod))
1192 btn_dialog(main_window, setmod_text, 0);
1193 }
1194 break;
1195 case 'n':
1196 if (item_is_tag('t'))
1197 sym_set_tristate_value(sym, no);
1198 break;
1199 case 'm':
1200 if (item_is_tag('t'))
1201 sym_set_tristate_value(sym, mod);
1202 break;
1203 }
1204 }
1205}
1206
1207static void conf_message_callback(const char *s)
1208{
1209 btn_dialog(main_window, s, 1, "<OK>");
1210}
1211
1212static void show_help(struct menu *menu)
1213{
1214 struct gstr help;
1215
1216 if (!menu)
1217 return;
1218
1219 help = str_new();
1220 menu_get_ext_help(menu, &help);
1221 show_scroll_win(main_window, menu_get_prompt(menu), str_get(&help));
1222 str_free(&help);
1223}
1224
1225static void conf_choice(struct menu *menu)
1226{
1227 const char *prompt = menu_get_prompt(menu);
1228 struct menu *child = NULL;
1229 struct symbol *active;
1230 int selected_index = 0;
1231 int last_top_row = 0;
1232 int res, i = 0;
1233 struct match_state match_state = {
1234 .in_search = 0,
1235 .match_direction = MATCH_TINKER_PATTERN_DOWN,
1236 .pattern = "",
1237 };
1238
1239 active = sym_get_choice_value(menu->sym);
1240 /* this is mostly duplicated from the conf() function. */
1241 while (!global_exit) {
1242 reset_menu();
1243
1244 for (i = 0, child = menu->list; child; child = child->next) {
1245 if (!show_all_items && !menu_is_visible(child))
1246 continue;
1247
1248 if (child->sym == sym_get_choice_value(menu->sym))
1249 item_make(child, ':', "<X> %s",
1250 menu_get_prompt(child));
1251 else if (child->sym)
1252 item_make(child, ':', " %s",
1253 menu_get_prompt(child));
1254 else
1255 item_make(child, ':', "*** %s ***",
1256 menu_get_prompt(child));
1257
1258 if (child->sym == active){
1259 last_top_row = top_row(curses_menu);
1260 selected_index = i;
1261 }
1262 i++;
1263 }
1264 show_menu(prompt ? prompt : "Choice Menu",
1265 radiolist_instructions,
1266 selected_index,
1267 &last_top_row);
1268 while (!global_exit) {
1269 if (match_state.in_search) {
1270 mvprintw(0, 0, "searching: %s",
1271 match_state.pattern);
1272 clrtoeol();
1273 }
1274 refresh_all_windows(main_window);
1275 res = wgetch(menu_win(curses_menu));
1276 if (!res)
1277 break;
1278 if (do_match(res, &match_state, &selected_index) == 0) {
1279 if (selected_index != -1)
1280 center_item(selected_index,
1281 &last_top_row);
1282 continue;
1283 }
1284 if (process_special_keys(
1285 &res,
1286 (struct menu *) item_data()))
1287 break;
1288 switch (res) {
1289 case KEY_DOWN:
1290 menu_driver(curses_menu, REQ_DOWN_ITEM);
1291 break;
1292 case KEY_UP:
1293 menu_driver(curses_menu, REQ_UP_ITEM);
1294 break;
1295 case KEY_NPAGE:
1296 menu_driver(curses_menu, REQ_SCR_DPAGE);
1297 break;
1298 case KEY_PPAGE:
1299 menu_driver(curses_menu, REQ_SCR_UPAGE);
1300 break;
1301 case KEY_HOME:
1302 menu_driver(curses_menu, REQ_FIRST_ITEM);
1303 break;
1304 case KEY_END:
1305 menu_driver(curses_menu, REQ_LAST_ITEM);
1306 break;
1307 case 'h':
1308 case '?':
1309 show_help((struct menu *) item_data());
1310 break;
1311 }
1312 if (res == 10 || res == 27 || res == ' ' ||
1313 res == KEY_LEFT){
1314 break;
1315 }
1316 refresh_all_windows(main_window);
1317 }
1318 /* if ESC or left */
1319 if (res == 27 || res == KEY_LEFT)
1320 break;
1321
1322 child = item_data();
1323 if (!child || !menu_is_visible(child) || !child->sym)
1324 continue;
1325 switch (res) {
1326 case ' ':
1327 case 10:
1328 case KEY_RIGHT:
1329 sym_set_tristate_value(child->sym, yes);
1330 return;
1331 case 'h':
1332 case '?':
1333 show_help(child);
1334 active = child->sym;
1335 break;
1336 case KEY_EXIT:
1337 return;
1338 }
1339 }
1340}
1341
1342static void conf_string(struct menu *menu)
1343{
1344 const char *prompt = menu_get_prompt(menu);
1345
1346 while (1) {
1347 int res;
1348 const char *heading;
1349
1350 switch (sym_get_type(menu->sym)) {
1351 case S_INT:
1352 heading = inputbox_instructions_int;
1353 break;
1354 case S_HEX:
1355 heading = inputbox_instructions_hex;
1356 break;
1357 case S_STRING:
1358 heading = inputbox_instructions_string;
1359 break;
1360 default:
1361 heading = "Internal nconf error!";
1362 }
1363 res = dialog_inputbox(main_window,
1364 prompt ? prompt : "Main Menu",
1365 heading,
1366 sym_get_string_value(menu->sym),
1367 &dialog_input_result,
1368 &dialog_input_result_len);
1369 switch (res) {
1370 case 0:
1371 if (sym_set_string_value(menu->sym,
1372 dialog_input_result))
1373 return;
1374 btn_dialog(main_window,
1375 "You have made an invalid entry.", 0);
1376 break;
1377 case 1:
1378 show_help(menu);
1379 break;
1380 case KEY_EXIT:
1381 return;
1382 }
1383 }
1384}
1385
1386static void conf_load(void)
1387{
1388 while (1) {
1389 int res;
1390 res = dialog_inputbox(main_window,
1391 NULL, load_config_text,
1392 filename,
1393 &dialog_input_result,
1394 &dialog_input_result_len);
1395 switch (res) {
1396 case 0:
1397 if (!dialog_input_result[0])
1398 return;
1399 if (!conf_read(dialog_input_result)) {
1400 set_config_filename(dialog_input_result);
1401 conf_set_changed(true);
1402 return;
1403 }
1404 btn_dialog(main_window, "File does not exist!", 0);
1405 break;
1406 case 1:
1407 show_scroll_win(main_window,
1408 "Load Alternate Configuration",
1409 load_config_help);
1410 break;
1411 case KEY_EXIT:
1412 return;
1413 }
1414 }
1415}
1416
1417static void conf_save(void)
1418{
1419 while (1) {
1420 int res;
1421 res = dialog_inputbox(main_window,
1422 NULL, save_config_text,
1423 filename,
1424 &dialog_input_result,
1425 &dialog_input_result_len);
1426 switch (res) {
1427 case 0:
1428 if (!dialog_input_result[0])
1429 return;
1430 res = conf_write(dialog_input_result);
1431 if (!res) {
1432 set_config_filename(dialog_input_result);
1433 return;
1434 }
1435 btn_dialog(main_window, "Can't create file!",
1436 1, "<OK>");
1437 break;
1438 case 1:
1439 show_scroll_win(main_window,
1440 "Save Alternate Configuration",
1441 save_config_help);
1442 break;
1443 case KEY_EXIT:
1444 return;
1445 }
1446 }
1447}
1448
1449static void setup_windows(void)
1450{
1451 int lines, columns;
1452
1453 getmaxyx(stdscr, lines, columns);
1454
1455 if (main_window != NULL)
1456 delwin(main_window);
1457
1458 /* set up the menu and menu window */
1459 main_window = newwin(lines-2, columns-2, 2, 1);
1460 keypad(main_window, TRUE);
1461 mwin_max_lines = lines-7;
1462 mwin_max_cols = columns-6;
1463
1464 /* panels order is from bottom to top */
1465 new_panel(main_window);
1466}
1467
1468int main(int ac, char **av)
1469{
1470 int lines, columns;
1471 char *mode;
1472
1473 if (ac > 1 && strcmp(av[1], "-s") == 0) {
1474 /* Silence conf_read() until the real callback is set up */
1475 conf_set_message_callback(NULL);
1476 av++;
1477 }
1478 conf_parse(av[1]);
1479 conf_read(NULL);
1480
1481 mode = getenv("NCONFIG_MODE");
1482 if (mode) {
1483 if (!strcasecmp(mode, "single_menu"))
1484 single_menu_mode = 1;
1485 }
1486
1487 /* Initialize curses */
1488 initscr();
1489 /* set color theme */
1490 set_colors();
1491
1492 cbreak();
1493 noecho();
1494 keypad(stdscr, TRUE);
1495 curs_set(0);
1496
1497 getmaxyx(stdscr, lines, columns);
1498 if (columns < 75 || lines < 20) {
1499 endwin();
1500 printf("Your terminal should have at "
1501 "least 20 lines and 75 columns\n");
1502 return 1;
1503 }
1504
1505 notimeout(stdscr, FALSE);
1506#if NCURSES_REENTRANT
1507 set_escdelay(1);
1508#else
1509 ESCDELAY = 1;
1510#endif
1511
1512 /* set btns menu */
1513 curses_menu = new_menu(curses_menu_items);
1514 menu_opts_off(curses_menu, O_SHOWDESC);
1515 menu_opts_on(curses_menu, O_SHOWMATCH);
1516 menu_opts_on(curses_menu, O_ONEVALUE);
1517 menu_opts_on(curses_menu, O_NONCYCLIC);
1518 menu_opts_on(curses_menu, O_IGNORECASE);
1519 set_menu_mark(curses_menu, " ");
1520 set_menu_fore(curses_menu, attr_main_menu_fore);
1521 set_menu_back(curses_menu, attr_main_menu_back);
1522 set_menu_grey(curses_menu, attr_main_menu_grey);
1523
1524 set_config_filename(conf_get_configname());
1525 setup_windows();
1526
1527 /* check for KEY_FUNC(1) */
1528 if (has_key(KEY_F(1)) == FALSE) {
1529 show_scroll_win(main_window,
1530 "Instructions",
1531 menu_no_f_instructions);
1532 }
1533
1534 conf_set_message_callback(conf_message_callback);
1535 /* do the work */
1536 while (!global_exit) {
1537 conf(&rootmenu);
1538 if (!global_exit && do_exit() == 0)
1539 break;
1540 }
1541 /* ok, we are done */
1542 unpost_menu(curses_menu);
1543 free_menu(curses_menu);
1544 delwin(main_window);
1545 clear();
1546 refresh();
1547 endwin();
1548 return 0;
1549}
1/*
2 * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
3 * Released under the terms of the GNU GPL v2.0.
4 *
5 * Derived from menuconfig.
6 *
7 */
8#ifndef _GNU_SOURCE
9#define _GNU_SOURCE
10#endif
11#include <string.h>
12#include <stdlib.h>
13
14#include "lkc.h"
15#include "nconf.h"
16#include <ctype.h>
17
18static const char nconf_global_help[] = N_(
19"Help windows\n"
20"------------\n"
21"o Global help: Unless in a data entry window, pressing <F1> will give \n"
22" you the global help window, which you are just reading.\n"
23"\n"
24"o A short version of the global help is available by pressing <F3>.\n"
25"\n"
26"o Local help: To get help related to the current menu entry, use any\n"
27" of <?> <h>, or if in a data entry window then press <F1>.\n"
28"\n"
29"\n"
30"Menu entries\n"
31"------------\n"
32"This interface lets you select features and parameters for the kernel\n"
33"build. Kernel features can either be built-in, modularized, or removed.\n"
34"Parameters must be entered as text or decimal or hexadecimal numbers.\n"
35"\n"
36"Menu entries beginning with following braces represent features that\n"
37" [ ] can be built in or removed\n"
38" < > can be built in, modularized or removed\n"
39" { } can be built in or modularized, are selected by another feature\n"
40" - - are selected by another feature\n"
41" XXX cannot be selected. Symbol Info <F2> tells you why.\n"
42"*, M or whitespace inside braces means to build in, build as a module\n"
43"or to exclude the feature respectively.\n"
44"\n"
45"To change any of these features, highlight it with the movement keys\n"
46"listed below and press <y> to build it in, <m> to make it a module or\n"
47"<n> to remove it. You may press the <Space> key to cycle through the\n"
48"available options.\n"
49"\n"
50"A trailing \"--->\" designates a submenu, a trailing \"----\" an\n"
51"empty submenu.\n"
52"\n"
53"Menu navigation keys\n"
54"----------------------------------------------------------------------\n"
55"Linewise up <Up>\n"
56"Linewise down <Down>\n"
57"Pagewise up <Page Up>\n"
58"Pagewise down <Page Down>\n"
59"First entry <Home>\n"
60"Last entry <End>\n"
61"Enter a submenu <Right> <Enter>\n"
62"Go back to parent menu <Left> <Esc> <F5>\n"
63"Close a help window <Enter> <Esc> <F5>\n"
64"Close entry window, apply <Enter>\n"
65"Close entry window, forget <Esc> <F5>\n"
66"Start incremental, case-insensitive search for STRING in menu entries,\n"
67" no regex support, STRING is displayed in upper left corner\n"
68" </>STRING\n"
69" Remove last character <Backspace>\n"
70" Jump to next hit <Down>\n"
71" Jump to previous hit <Up>\n"
72"Exit menu search mode </> <Esc>\n"
73"Search for configuration variables with or without leading CONFIG_\n"
74" <F8>RegExpr<Enter>\n"
75"Verbose search help <F8><F1>\n"
76"----------------------------------------------------------------------\n"
77"\n"
78"Unless in a data entry window, key <1> may be used instead of <F1>,\n"
79"<2> instead of <F2>, etc.\n"
80"\n"
81"\n"
82"Radiolist (Choice list)\n"
83"-----------------------\n"
84"Use the movement keys listed above to select the option you wish to set\n"
85"and press <Space>.\n"
86"\n"
87"\n"
88"Data entry\n"
89"----------\n"
90"Enter the requested information and press <Enter>. Hexadecimal values\n"
91"may be entered without the \"0x\" prefix.\n"
92"\n"
93"\n"
94"Text Box (Help Window)\n"
95"----------------------\n"
96"Use movement keys as listed in table above.\n"
97"\n"
98"Press any of <Enter> <Esc> <q> <F5> <F9> to exit.\n"
99"\n"
100"\n"
101"Alternate configuration files\n"
102"-----------------------------\n"
103"nconfig supports switching between different configurations.\n"
104"Press <F6> to save your current configuration. Press <F7> and enter\n"
105"a file name to load a previously saved configuration.\n"
106"\n"
107"\n"
108"Terminal configuration\n"
109"----------------------\n"
110"If you use nconfig in a xterm window, make sure your TERM environment\n"
111"variable specifies a terminal configuration which supports at least\n"
112"16 colors. Otherwise nconfig will look rather bad.\n"
113"\n"
114"If the \"stty size\" command reports the current terminalsize correctly,\n"
115"nconfig will adapt to sizes larger than the traditional 80x25 \"standard\"\n"
116"and display longer menus properly.\n"
117"\n"
118"\n"
119"Single menu mode\n"
120"----------------\n"
121"If you prefer to have all of the menu entries listed in a single menu,\n"
122"rather than the default multimenu hierarchy, run nconfig with\n"
123"NCONFIG_MODE environment variable set to single_menu. Example:\n"
124"\n"
125"make NCONFIG_MODE=single_menu nconfig\n"
126"\n"
127"<Enter> will then unfold the appropriate category, or fold it if it\n"
128"is already unfolded. Folded menu entries will be designated by a\n"
129"leading \"++>\" and unfolded entries by a leading \"-->\".\n"
130"\n"
131"Note that this mode can eventually be a little more CPU expensive than\n"
132"the default mode, especially with a larger number of unfolded submenus.\n"
133"\n"),
134menu_no_f_instructions[] = N_(
135"Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
136"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
137"\n"
138"Use the following keys to navigate the menus:\n"
139"Move up or down with <Up> and <Down>.\n"
140"Enter a submenu with <Enter> or <Right>.\n"
141"Exit a submenu to its parent menu with <Esc> or <Left>.\n"
142"Pressing <y> includes, <n> excludes, <m> modularizes features.\n"
143"Pressing <Space> cycles through the available options.\n"
144"To search for menu entries press </>.\n"
145"<Esc> always leaves the current window.\n"
146"\n"
147"You do not have function keys support.\n"
148"Press <1> instead of <F1>, <2> instead of <F2>, etc.\n"
149"For verbose global help use key <1>.\n"
150"For help related to the current menu entry press <?> or <h>.\n"),
151menu_instructions[] = N_(
152"Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
153"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
154"\n"
155"Use the following keys to navigate the menus:\n"
156"Move up or down with <Up> or <Down>.\n"
157"Enter a submenu with <Enter> or <Right>.\n"
158"Exit a submenu to its parent menu with <Esc> or <Left>.\n"
159"Pressing <y> includes, <n> excludes, <m> modularizes features.\n"
160"Pressing <Space> cycles through the available options.\n"
161"To search for menu entries press </>.\n"
162"<Esc> always leaves the current window.\n"
163"\n"
164"Pressing <1> may be used instead of <F1>, <2> instead of <F2>, etc.\n"
165"For verbose global help press <F1>.\n"
166"For help related to the current menu entry press <?> or <h>.\n"),
167radiolist_instructions[] = N_(
168"Press <Up>, <Down>, <Home> or <End> to navigate a radiolist, select\n"
169"with <Space>.\n"
170"For help related to the current entry press <?> or <h>.\n"
171"For global help press <F1>.\n"),
172inputbox_instructions_int[] = N_(
173"Please enter a decimal value.\n"
174"Fractions will not be accepted.\n"
175"Press <Enter> to apply, <Esc> to cancel."),
176inputbox_instructions_hex[] = N_(
177"Please enter a hexadecimal value.\n"
178"Press <Enter> to apply, <Esc> to cancel."),
179inputbox_instructions_string[] = N_(
180"Please enter a string value.\n"
181"Press <Enter> to apply, <Esc> to cancel."),
182setmod_text[] = N_(
183"This feature depends on another feature which has been configured as a\n"
184"module. As a result, the current feature will be built as a module too."),
185load_config_text[] = N_(
186"Enter the name of the configuration file you wish to load.\n"
187"Accept the name shown to restore the configuration you last\n"
188"retrieved. Leave empty to abort."),
189load_config_help[] = N_(
190"For various reasons, one may wish to keep several different\n"
191"configurations available on a single machine.\n"
192"\n"
193"If you have saved a previous configuration in a file other than the\n"
194"default one, entering its name here will allow you to load and modify\n"
195"that configuration.\n"
196"\n"
197"Leave empty to abort.\n"),
198save_config_text[] = N_(
199"Enter a filename to which this configuration should be saved\n"
200"as an alternate. Leave empty to abort."),
201save_config_help[] = N_(
202"For various reasons, one may wish to keep several different\n"
203"configurations available on a single machine.\n"
204"\n"
205"Entering a file name here will allow you to later retrieve, modify\n"
206"and use the current configuration as an alternate to whatever\n"
207"configuration options you have selected at that time.\n"
208"\n"
209"Leave empty to abort.\n"),
210search_help[] = N_(
211"Search for symbols (configuration variable names CONFIG_*) and display\n"
212"their relations. Regular expressions are supported.\n"
213"Example: Search for \"^FOO\".\n"
214"Result:\n"
215"-----------------------------------------------------------------\n"
216"Symbol: FOO [ = m]\n"
217"Prompt: Foo bus is used to drive the bar HW\n"
218"Defined at drivers/pci/Kconfig:47\n"
219"Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
220"Location:\n"
221" -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
222" -> PCI support (PCI [ = y])\n"
223" -> PCI access mode (<choice> [ = y])\n"
224"Selects: LIBCRC32\n"
225"Selected by: BAR\n"
226"-----------------------------------------------------------------\n"
227"o The line 'Prompt:' shows the text displayed for this symbol in\n"
228" the menu hierarchy.\n"
229"o The 'Defined at' line tells at what file / line number the symbol is\n"
230" defined.\n"
231"o The 'Depends on:' line lists symbols that need to be defined for\n"
232" this symbol to be visible and selectable in the menu.\n"
233"o The 'Location:' lines tell, where in the menu structure this symbol\n"
234" is located. A location followed by a [ = y] indicates that this is\n"
235" a selectable menu item, and the current value is displayed inside\n"
236" brackets.\n"
237"o The 'Selects:' line tells, what symbol will be automatically selected\n"
238" if this symbol is selected (y or m).\n"
239"o The 'Selected by' line tells what symbol has selected this symbol.\n"
240"\n"
241"Only relevant lines are shown.\n"
242"\n\n"
243"Search examples:\n"
244"USB => find all symbols containing USB\n"
245"^USB => find all symbols starting with USB\n"
246"USB$ => find all symbols ending with USB\n"
247"\n");
248
249struct mitem {
250 char str[256];
251 char tag;
252 void *usrptr;
253 int is_visible;
254};
255
256#define MAX_MENU_ITEMS 4096
257static int show_all_items;
258static int indent;
259static struct menu *current_menu;
260static int child_count;
261static int single_menu_mode;
262/* the window in which all information appears */
263static WINDOW *main_window;
264/* the largest size of the menu window */
265static int mwin_max_lines;
266static int mwin_max_cols;
267/* the window in which we show option buttons */
268static MENU *curses_menu;
269static ITEM *curses_menu_items[MAX_MENU_ITEMS];
270static struct mitem k_menu_items[MAX_MENU_ITEMS];
271static int items_num;
272static int global_exit;
273/* the currently selected button */
274const char *current_instructions = menu_instructions;
275
276static char *dialog_input_result;
277static int dialog_input_result_len;
278
279static void conf(struct menu *menu);
280static void conf_choice(struct menu *menu);
281static void conf_string(struct menu *menu);
282static void conf_load(void);
283static void conf_save(void);
284static void show_help(struct menu *menu);
285static int do_exit(void);
286static void setup_windows(void);
287static void search_conf(void);
288
289typedef void (*function_key_handler_t)(int *key, struct menu *menu);
290static void handle_f1(int *key, struct menu *current_item);
291static void handle_f2(int *key, struct menu *current_item);
292static void handle_f3(int *key, struct menu *current_item);
293static void handle_f4(int *key, struct menu *current_item);
294static void handle_f5(int *key, struct menu *current_item);
295static void handle_f6(int *key, struct menu *current_item);
296static void handle_f7(int *key, struct menu *current_item);
297static void handle_f8(int *key, struct menu *current_item);
298static void handle_f9(int *key, struct menu *current_item);
299
300struct function_keys {
301 const char *key_str;
302 const char *func;
303 function_key key;
304 function_key_handler_t handler;
305};
306
307static const int function_keys_num = 9;
308struct function_keys function_keys[] = {
309 {
310 .key_str = "F1",
311 .func = "Help",
312 .key = F_HELP,
313 .handler = handle_f1,
314 },
315 {
316 .key_str = "F2",
317 .func = "SymInfo",
318 .key = F_SYMBOL,
319 .handler = handle_f2,
320 },
321 {
322 .key_str = "F3",
323 .func = "Help 2",
324 .key = F_INSTS,
325 .handler = handle_f3,
326 },
327 {
328 .key_str = "F4",
329 .func = "ShowAll",
330 .key = F_CONF,
331 .handler = handle_f4,
332 },
333 {
334 .key_str = "F5",
335 .func = "Back",
336 .key = F_BACK,
337 .handler = handle_f5,
338 },
339 {
340 .key_str = "F6",
341 .func = "Save",
342 .key = F_SAVE,
343 .handler = handle_f6,
344 },
345 {
346 .key_str = "F7",
347 .func = "Load",
348 .key = F_LOAD,
349 .handler = handle_f7,
350 },
351 {
352 .key_str = "F8",
353 .func = "SymSearch",
354 .key = F_SEARCH,
355 .handler = handle_f8,
356 },
357 {
358 .key_str = "F9",
359 .func = "Exit",
360 .key = F_EXIT,
361 .handler = handle_f9,
362 },
363};
364
365static void print_function_line(void)
366{
367 int i;
368 int offset = 1;
369 const int skip = 1;
370 int lines = getmaxy(stdscr);
371
372 for (i = 0; i < function_keys_num; i++) {
373 (void) wattrset(main_window, attributes[FUNCTION_HIGHLIGHT]);
374 mvwprintw(main_window, lines-3, offset,
375 "%s",
376 function_keys[i].key_str);
377 (void) wattrset(main_window, attributes[FUNCTION_TEXT]);
378 offset += strlen(function_keys[i].key_str);
379 mvwprintw(main_window, lines-3,
380 offset, "%s",
381 function_keys[i].func);
382 offset += strlen(function_keys[i].func) + skip;
383 }
384 (void) wattrset(main_window, attributes[NORMAL]);
385}
386
387/* help */
388static void handle_f1(int *key, struct menu *current_item)
389{
390 show_scroll_win(main_window,
391 _("Global help"), _(nconf_global_help));
392 return;
393}
394
395/* symbole help */
396static void handle_f2(int *key, struct menu *current_item)
397{
398 show_help(current_item);
399 return;
400}
401
402/* instructions */
403static void handle_f3(int *key, struct menu *current_item)
404{
405 show_scroll_win(main_window,
406 _("Short help"),
407 _(current_instructions));
408 return;
409}
410
411/* config */
412static void handle_f4(int *key, struct menu *current_item)
413{
414 int res = btn_dialog(main_window,
415 _("Show all symbols?"),
416 2,
417 " <Show All> ",
418 "<Don't show all>");
419 if (res == 0)
420 show_all_items = 1;
421 else if (res == 1)
422 show_all_items = 0;
423
424 return;
425}
426
427/* back */
428static void handle_f5(int *key, struct menu *current_item)
429{
430 *key = KEY_LEFT;
431 return;
432}
433
434/* save */
435static void handle_f6(int *key, struct menu *current_item)
436{
437 conf_save();
438 return;
439}
440
441/* load */
442static void handle_f7(int *key, struct menu *current_item)
443{
444 conf_load();
445 return;
446}
447
448/* search */
449static void handle_f8(int *key, struct menu *current_item)
450{
451 search_conf();
452 return;
453}
454
455/* exit */
456static void handle_f9(int *key, struct menu *current_item)
457{
458 do_exit();
459 return;
460}
461
462/* return != 0 to indicate the key was handles */
463static int process_special_keys(int *key, struct menu *menu)
464{
465 int i;
466
467 if (*key == KEY_RESIZE) {
468 setup_windows();
469 return 1;
470 }
471
472 for (i = 0; i < function_keys_num; i++) {
473 if (*key == KEY_F(function_keys[i].key) ||
474 *key == '0' + function_keys[i].key){
475 function_keys[i].handler(key, menu);
476 return 1;
477 }
478 }
479
480 return 0;
481}
482
483static void clean_items(void)
484{
485 int i;
486 for (i = 0; curses_menu_items[i]; i++)
487 free_item(curses_menu_items[i]);
488 bzero(curses_menu_items, sizeof(curses_menu_items));
489 bzero(k_menu_items, sizeof(k_menu_items));
490 items_num = 0;
491}
492
493typedef enum {MATCH_TINKER_PATTERN_UP, MATCH_TINKER_PATTERN_DOWN,
494 FIND_NEXT_MATCH_DOWN, FIND_NEXT_MATCH_UP} match_f;
495
496/* return the index of the matched item, or -1 if no such item exists */
497static int get_mext_match(const char *match_str, match_f flag)
498{
499 int match_start = item_index(current_item(curses_menu));
500 int index;
501
502 if (flag == FIND_NEXT_MATCH_DOWN)
503 ++match_start;
504 else if (flag == FIND_NEXT_MATCH_UP)
505 --match_start;
506
507 index = match_start;
508 index = (index + items_num) % items_num;
509 while (true) {
510 char *str = k_menu_items[index].str;
511 if (strcasestr(str, match_str) != 0)
512 return index;
513 if (flag == FIND_NEXT_MATCH_UP ||
514 flag == MATCH_TINKER_PATTERN_UP)
515 --index;
516 else
517 ++index;
518 index = (index + items_num) % items_num;
519 if (index == match_start)
520 return -1;
521 }
522}
523
524/* Make a new item. */
525static void item_make(struct menu *menu, char tag, const char *fmt, ...)
526{
527 va_list ap;
528
529 if (items_num > MAX_MENU_ITEMS-1)
530 return;
531
532 bzero(&k_menu_items[items_num], sizeof(k_menu_items[0]));
533 k_menu_items[items_num].tag = tag;
534 k_menu_items[items_num].usrptr = menu;
535 if (menu != NULL)
536 k_menu_items[items_num].is_visible =
537 menu_is_visible(menu);
538 else
539 k_menu_items[items_num].is_visible = 1;
540
541 va_start(ap, fmt);
542 vsnprintf(k_menu_items[items_num].str,
543 sizeof(k_menu_items[items_num].str),
544 fmt, ap);
545 va_end(ap);
546
547 if (!k_menu_items[items_num].is_visible)
548 memcpy(k_menu_items[items_num].str, "XXX", 3);
549
550 curses_menu_items[items_num] = new_item(
551 k_menu_items[items_num].str,
552 k_menu_items[items_num].str);
553 set_item_userptr(curses_menu_items[items_num],
554 &k_menu_items[items_num]);
555 /*
556 if (!k_menu_items[items_num].is_visible)
557 item_opts_off(curses_menu_items[items_num], O_SELECTABLE);
558 */
559
560 items_num++;
561 curses_menu_items[items_num] = NULL;
562}
563
564/* very hackish. adds a string to the last item added */
565static void item_add_str(const char *fmt, ...)
566{
567 va_list ap;
568 int index = items_num-1;
569 char new_str[256];
570 char tmp_str[256];
571
572 if (index < 0)
573 return;
574
575 va_start(ap, fmt);
576 vsnprintf(new_str, sizeof(new_str), fmt, ap);
577 va_end(ap);
578 snprintf(tmp_str, sizeof(tmp_str), "%s%s",
579 k_menu_items[index].str, new_str);
580 strncpy(k_menu_items[index].str,
581 tmp_str,
582 sizeof(k_menu_items[index].str));
583
584 free_item(curses_menu_items[index]);
585 curses_menu_items[index] = new_item(
586 k_menu_items[index].str,
587 k_menu_items[index].str);
588 set_item_userptr(curses_menu_items[index],
589 &k_menu_items[index]);
590}
591
592/* get the tag of the currently selected item */
593static char item_tag(void)
594{
595 ITEM *cur;
596 struct mitem *mcur;
597
598 cur = current_item(curses_menu);
599 if (cur == NULL)
600 return 0;
601 mcur = (struct mitem *) item_userptr(cur);
602 return mcur->tag;
603}
604
605static int curses_item_index(void)
606{
607 return item_index(current_item(curses_menu));
608}
609
610static void *item_data(void)
611{
612 ITEM *cur;
613 struct mitem *mcur;
614
615 cur = current_item(curses_menu);
616 if (!cur)
617 return NULL;
618 mcur = (struct mitem *) item_userptr(cur);
619 return mcur->usrptr;
620
621}
622
623static int item_is_tag(char tag)
624{
625 return item_tag() == tag;
626}
627
628static char filename[PATH_MAX+1];
629static char menu_backtitle[PATH_MAX+128];
630static const char *set_config_filename(const char *config_filename)
631{
632 int size;
633
634 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
635 "%s - %s", config_filename, rootmenu.prompt->text);
636 if (size >= sizeof(menu_backtitle))
637 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
638
639 size = snprintf(filename, sizeof(filename), "%s", config_filename);
640 if (size >= sizeof(filename))
641 filename[sizeof(filename)-1] = '\0';
642 return menu_backtitle;
643}
644
645/* return = 0 means we are successful.
646 * -1 means go on doing what you were doing
647 */
648static int do_exit(void)
649{
650 int res;
651 if (!conf_get_changed()) {
652 global_exit = 1;
653 return 0;
654 }
655 res = btn_dialog(main_window,
656 _("Do you wish to save your new configuration?\n"
657 "<ESC> to cancel and resume nconfig."),
658 2,
659 " <save> ",
660 "<don't save>");
661 if (res == KEY_EXIT) {
662 global_exit = 0;
663 return -1;
664 }
665
666 /* if we got here, the user really wants to exit */
667 switch (res) {
668 case 0:
669 res = conf_write(filename);
670 if (res)
671 btn_dialog(
672 main_window,
673 _("Error during writing of configuration.\n"
674 "Your configuration changes were NOT saved."),
675 1,
676 "<OK>");
677 break;
678 default:
679 btn_dialog(
680 main_window,
681 _("Your configuration changes were NOT saved."),
682 1,
683 "<OK>");
684 break;
685 }
686 global_exit = 1;
687 return 0;
688}
689
690
691static void search_conf(void)
692{
693 struct symbol **sym_arr;
694 struct gstr res;
695 struct gstr title;
696 char *dialog_input;
697 int dres;
698
699 title = str_new();
700 str_printf( &title, _("Enter (sub)string or regexp to search for "
701 "(with or without \"%s\")"), CONFIG_);
702
703again:
704 dres = dialog_inputbox(main_window,
705 _("Search Configuration Parameter"),
706 str_get(&title),
707 "", &dialog_input_result, &dialog_input_result_len);
708 switch (dres) {
709 case 0:
710 break;
711 case 1:
712 show_scroll_win(main_window,
713 _("Search Configuration"), search_help);
714 goto again;
715 default:
716 str_free(&title);
717 return;
718 }
719
720 /* strip the prefix if necessary */
721 dialog_input = dialog_input_result;
722 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
723 dialog_input += strlen(CONFIG_);
724
725 sym_arr = sym_re_search(dialog_input);
726 res = get_relations_str(sym_arr, NULL);
727 free(sym_arr);
728 show_scroll_win(main_window,
729 _("Search Results"), str_get(&res));
730 str_free(&res);
731 str_free(&title);
732}
733
734
735static void build_conf(struct menu *menu)
736{
737 struct symbol *sym;
738 struct property *prop;
739 struct menu *child;
740 int type, tmp, doint = 2;
741 tristate val;
742 char ch;
743
744 if (!menu || (!show_all_items && !menu_is_visible(menu)))
745 return;
746
747 sym = menu->sym;
748 prop = menu->prompt;
749 if (!sym) {
750 if (prop && menu != current_menu) {
751 const char *prompt = menu_get_prompt(menu);
752 enum prop_type ptype;
753 ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
754 switch (ptype) {
755 case P_MENU:
756 child_count++;
757 prompt = _(prompt);
758 if (single_menu_mode) {
759 item_make(menu, 'm',
760 "%s%*c%s",
761 menu->data ? "-->" : "++>",
762 indent + 1, ' ', prompt);
763 } else
764 item_make(menu, 'm',
765 " %*c%s %s",
766 indent + 1, ' ', prompt,
767 menu_is_empty(menu) ? "----" : "--->");
768
769 if (single_menu_mode && menu->data)
770 goto conf_childs;
771 return;
772 case P_COMMENT:
773 if (prompt) {
774 child_count++;
775 item_make(menu, ':',
776 " %*c*** %s ***",
777 indent + 1, ' ',
778 _(prompt));
779 }
780 break;
781 default:
782 if (prompt) {
783 child_count++;
784 item_make(menu, ':', "---%*c%s",
785 indent + 1, ' ',
786 _(prompt));
787 }
788 }
789 } else
790 doint = 0;
791 goto conf_childs;
792 }
793
794 type = sym_get_type(sym);
795 if (sym_is_choice(sym)) {
796 struct symbol *def_sym = sym_get_choice_value(sym);
797 struct menu *def_menu = NULL;
798
799 child_count++;
800 for (child = menu->list; child; child = child->next) {
801 if (menu_is_visible(child) && child->sym == def_sym)
802 def_menu = child;
803 }
804
805 val = sym_get_tristate_value(sym);
806 if (sym_is_changable(sym)) {
807 switch (type) {
808 case S_BOOLEAN:
809 item_make(menu, 't', "[%c]",
810 val == no ? ' ' : '*');
811 break;
812 case S_TRISTATE:
813 switch (val) {
814 case yes:
815 ch = '*';
816 break;
817 case mod:
818 ch = 'M';
819 break;
820 default:
821 ch = ' ';
822 break;
823 }
824 item_make(menu, 't', "<%c>", ch);
825 break;
826 }
827 } else {
828 item_make(menu, def_menu ? 't' : ':', " ");
829 }
830
831 item_add_str("%*c%s", indent + 1,
832 ' ', _(menu_get_prompt(menu)));
833 if (val == yes) {
834 if (def_menu) {
835 item_add_str(" (%s)",
836 _(menu_get_prompt(def_menu)));
837 item_add_str(" --->");
838 if (def_menu->list) {
839 indent += 2;
840 build_conf(def_menu);
841 indent -= 2;
842 }
843 }
844 return;
845 }
846 } else {
847 if (menu == current_menu) {
848 item_make(menu, ':',
849 "---%*c%s", indent + 1,
850 ' ', _(menu_get_prompt(menu)));
851 goto conf_childs;
852 }
853 child_count++;
854 val = sym_get_tristate_value(sym);
855 if (sym_is_choice_value(sym) && val == yes) {
856 item_make(menu, ':', " ");
857 } else {
858 switch (type) {
859 case S_BOOLEAN:
860 if (sym_is_changable(sym))
861 item_make(menu, 't', "[%c]",
862 val == no ? ' ' : '*');
863 else
864 item_make(menu, 't', "-%c-",
865 val == no ? ' ' : '*');
866 break;
867 case S_TRISTATE:
868 switch (val) {
869 case yes:
870 ch = '*';
871 break;
872 case mod:
873 ch = 'M';
874 break;
875 default:
876 ch = ' ';
877 break;
878 }
879 if (sym_is_changable(sym)) {
880 if (sym->rev_dep.tri == mod)
881 item_make(menu,
882 't', "{%c}", ch);
883 else
884 item_make(menu,
885 't', "<%c>", ch);
886 } else
887 item_make(menu, 't', "-%c-", ch);
888 break;
889 default:
890 tmp = 2 + strlen(sym_get_string_value(sym));
891 item_make(menu, 's', " (%s)",
892 sym_get_string_value(sym));
893 tmp = indent - tmp + 4;
894 if (tmp < 0)
895 tmp = 0;
896 item_add_str("%*c%s%s", tmp, ' ',
897 _(menu_get_prompt(menu)),
898 (sym_has_value(sym) ||
899 !sym_is_changable(sym)) ? "" :
900 _(" (NEW)"));
901 goto conf_childs;
902 }
903 }
904 item_add_str("%*c%s%s", indent + 1, ' ',
905 _(menu_get_prompt(menu)),
906 (sym_has_value(sym) || !sym_is_changable(sym)) ?
907 "" : _(" (NEW)"));
908 if (menu->prompt && menu->prompt->type == P_MENU) {
909 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
910 return;
911 }
912 }
913
914conf_childs:
915 indent += doint;
916 for (child = menu->list; child; child = child->next)
917 build_conf(child);
918 indent -= doint;
919}
920
921static void reset_menu(void)
922{
923 unpost_menu(curses_menu);
924 clean_items();
925}
926
927/* adjust the menu to show this item.
928 * prefer not to scroll the menu if possible*/
929static void center_item(int selected_index, int *last_top_row)
930{
931 int toprow;
932
933 set_top_row(curses_menu, *last_top_row);
934 toprow = top_row(curses_menu);
935 if (selected_index < toprow ||
936 selected_index >= toprow+mwin_max_lines) {
937 toprow = max(selected_index-mwin_max_lines/2, 0);
938 if (toprow >= item_count(curses_menu)-mwin_max_lines)
939 toprow = item_count(curses_menu)-mwin_max_lines;
940 set_top_row(curses_menu, toprow);
941 }
942 set_current_item(curses_menu,
943 curses_menu_items[selected_index]);
944 *last_top_row = toprow;
945 post_menu(curses_menu);
946 refresh_all_windows(main_window);
947}
948
949/* this function assumes reset_menu has been called before */
950static void show_menu(const char *prompt, const char *instructions,
951 int selected_index, int *last_top_row)
952{
953 int maxx, maxy;
954 WINDOW *menu_window;
955
956 current_instructions = instructions;
957
958 clear();
959 (void) wattrset(main_window, attributes[NORMAL]);
960 print_in_middle(stdscr, 1, 0, getmaxx(stdscr),
961 menu_backtitle,
962 attributes[MAIN_HEADING]);
963
964 (void) wattrset(main_window, attributes[MAIN_MENU_BOX]);
965 box(main_window, 0, 0);
966 (void) wattrset(main_window, attributes[MAIN_MENU_HEADING]);
967 mvwprintw(main_window, 0, 3, " %s ", prompt);
968 (void) wattrset(main_window, attributes[NORMAL]);
969
970 set_menu_items(curses_menu, curses_menu_items);
971
972 /* position the menu at the middle of the screen */
973 scale_menu(curses_menu, &maxy, &maxx);
974 maxx = min(maxx, mwin_max_cols-2);
975 maxy = mwin_max_lines;
976 menu_window = derwin(main_window,
977 maxy,
978 maxx,
979 2,
980 (mwin_max_cols-maxx)/2);
981 keypad(menu_window, TRUE);
982 set_menu_win(curses_menu, menu_window);
983 set_menu_sub(curses_menu, menu_window);
984
985 /* must reassert this after changing items, otherwise returns to a
986 * default of 16
987 */
988 set_menu_format(curses_menu, maxy, 1);
989 center_item(selected_index, last_top_row);
990 set_menu_format(curses_menu, maxy, 1);
991
992 print_function_line();
993
994 /* Post the menu */
995 post_menu(curses_menu);
996 refresh_all_windows(main_window);
997}
998
999static void adj_match_dir(match_f *match_direction)
1000{
1001 if (*match_direction == FIND_NEXT_MATCH_DOWN)
1002 *match_direction =
1003 MATCH_TINKER_PATTERN_DOWN;
1004 else if (*match_direction == FIND_NEXT_MATCH_UP)
1005 *match_direction =
1006 MATCH_TINKER_PATTERN_UP;
1007 /* else, do no change.. */
1008}
1009
1010struct match_state
1011{
1012 int in_search;
1013 match_f match_direction;
1014 char pattern[256];
1015};
1016
1017/* Return 0 means I have handled the key. In such a case, ans should hold the
1018 * item to center, or -1 otherwise.
1019 * Else return -1 .
1020 */
1021static int do_match(int key, struct match_state *state, int *ans)
1022{
1023 char c = (char) key;
1024 int terminate_search = 0;
1025 *ans = -1;
1026 if (key == '/' || (state->in_search && key == 27)) {
1027 move(0, 0);
1028 refresh();
1029 clrtoeol();
1030 state->in_search = 1-state->in_search;
1031 bzero(state->pattern, sizeof(state->pattern));
1032 state->match_direction = MATCH_TINKER_PATTERN_DOWN;
1033 return 0;
1034 } else if (!state->in_search)
1035 return 1;
1036
1037 if (isalnum(c) || isgraph(c) || c == ' ') {
1038 state->pattern[strlen(state->pattern)] = c;
1039 state->pattern[strlen(state->pattern)] = '\0';
1040 adj_match_dir(&state->match_direction);
1041 *ans = get_mext_match(state->pattern,
1042 state->match_direction);
1043 } else if (key == KEY_DOWN) {
1044 state->match_direction = FIND_NEXT_MATCH_DOWN;
1045 *ans = get_mext_match(state->pattern,
1046 state->match_direction);
1047 } else if (key == KEY_UP) {
1048 state->match_direction = FIND_NEXT_MATCH_UP;
1049 *ans = get_mext_match(state->pattern,
1050 state->match_direction);
1051 } else if (key == KEY_BACKSPACE || key == 127) {
1052 state->pattern[strlen(state->pattern)-1] = '\0';
1053 adj_match_dir(&state->match_direction);
1054 } else
1055 terminate_search = 1;
1056
1057 if (terminate_search) {
1058 state->in_search = 0;
1059 bzero(state->pattern, sizeof(state->pattern));
1060 move(0, 0);
1061 refresh();
1062 clrtoeol();
1063 return -1;
1064 }
1065 return 0;
1066}
1067
1068static void conf(struct menu *menu)
1069{
1070 struct menu *submenu = 0;
1071 const char *prompt = menu_get_prompt(menu);
1072 struct symbol *sym;
1073 int res;
1074 int current_index = 0;
1075 int last_top_row = 0;
1076 struct match_state match_state = {
1077 .in_search = 0,
1078 .match_direction = MATCH_TINKER_PATTERN_DOWN,
1079 .pattern = "",
1080 };
1081
1082 while (!global_exit) {
1083 reset_menu();
1084 current_menu = menu;
1085 build_conf(menu);
1086 if (!child_count)
1087 break;
1088
1089 show_menu(prompt ? _(prompt) : _("Main Menu"),
1090 _(menu_instructions),
1091 current_index, &last_top_row);
1092 keypad((menu_win(curses_menu)), TRUE);
1093 while (!global_exit) {
1094 if (match_state.in_search) {
1095 mvprintw(0, 0,
1096 "searching: %s", match_state.pattern);
1097 clrtoeol();
1098 }
1099 refresh_all_windows(main_window);
1100 res = wgetch(menu_win(curses_menu));
1101 if (!res)
1102 break;
1103 if (do_match(res, &match_state, ¤t_index) == 0) {
1104 if (current_index != -1)
1105 center_item(current_index,
1106 &last_top_row);
1107 continue;
1108 }
1109 if (process_special_keys(&res,
1110 (struct menu *) item_data()))
1111 break;
1112 switch (res) {
1113 case KEY_DOWN:
1114 menu_driver(curses_menu, REQ_DOWN_ITEM);
1115 break;
1116 case KEY_UP:
1117 menu_driver(curses_menu, REQ_UP_ITEM);
1118 break;
1119 case KEY_NPAGE:
1120 menu_driver(curses_menu, REQ_SCR_DPAGE);
1121 break;
1122 case KEY_PPAGE:
1123 menu_driver(curses_menu, REQ_SCR_UPAGE);
1124 break;
1125 case KEY_HOME:
1126 menu_driver(curses_menu, REQ_FIRST_ITEM);
1127 break;
1128 case KEY_END:
1129 menu_driver(curses_menu, REQ_LAST_ITEM);
1130 break;
1131 case 'h':
1132 case '?':
1133 show_help((struct menu *) item_data());
1134 break;
1135 }
1136 if (res == 10 || res == 27 ||
1137 res == 32 || res == 'n' || res == 'y' ||
1138 res == KEY_LEFT || res == KEY_RIGHT ||
1139 res == 'm')
1140 break;
1141 refresh_all_windows(main_window);
1142 }
1143
1144 refresh_all_windows(main_window);
1145 /* if ESC or left*/
1146 if (res == 27 || (menu != &rootmenu && res == KEY_LEFT))
1147 break;
1148
1149 /* remember location in the menu */
1150 last_top_row = top_row(curses_menu);
1151 current_index = curses_item_index();
1152
1153 if (!item_tag())
1154 continue;
1155
1156 submenu = (struct menu *) item_data();
1157 if (!submenu || !menu_is_visible(submenu))
1158 continue;
1159 sym = submenu->sym;
1160
1161 switch (res) {
1162 case ' ':
1163 if (item_is_tag('t'))
1164 sym_toggle_tristate_value(sym);
1165 else if (item_is_tag('m'))
1166 conf(submenu);
1167 break;
1168 case KEY_RIGHT:
1169 case 10: /* ENTER WAS PRESSED */
1170 switch (item_tag()) {
1171 case 'm':
1172 if (single_menu_mode)
1173 submenu->data =
1174 (void *) (long) !submenu->data;
1175 else
1176 conf(submenu);
1177 break;
1178 case 't':
1179 if (sym_is_choice(sym) &&
1180 sym_get_tristate_value(sym) == yes)
1181 conf_choice(submenu);
1182 else if (submenu->prompt &&
1183 submenu->prompt->type == P_MENU)
1184 conf(submenu);
1185 else if (res == 10)
1186 sym_toggle_tristate_value(sym);
1187 break;
1188 case 's':
1189 conf_string(submenu);
1190 break;
1191 }
1192 break;
1193 case 'y':
1194 if (item_is_tag('t')) {
1195 if (sym_set_tristate_value(sym, yes))
1196 break;
1197 if (sym_set_tristate_value(sym, mod))
1198 btn_dialog(main_window, setmod_text, 0);
1199 }
1200 break;
1201 case 'n':
1202 if (item_is_tag('t'))
1203 sym_set_tristate_value(sym, no);
1204 break;
1205 case 'm':
1206 if (item_is_tag('t'))
1207 sym_set_tristate_value(sym, mod);
1208 break;
1209 }
1210 }
1211}
1212
1213static void conf_message_callback(const char *fmt, va_list ap)
1214{
1215 char buf[1024];
1216
1217 vsnprintf(buf, sizeof(buf), fmt, ap);
1218 btn_dialog(main_window, buf, 1, "<OK>");
1219}
1220
1221static void show_help(struct menu *menu)
1222{
1223 struct gstr help;
1224
1225 if (!menu)
1226 return;
1227
1228 help = str_new();
1229 menu_get_ext_help(menu, &help);
1230 show_scroll_win(main_window, _(menu_get_prompt(menu)), str_get(&help));
1231 str_free(&help);
1232}
1233
1234static void conf_choice(struct menu *menu)
1235{
1236 const char *prompt = _(menu_get_prompt(menu));
1237 struct menu *child = 0;
1238 struct symbol *active;
1239 int selected_index = 0;
1240 int last_top_row = 0;
1241 int res, i = 0;
1242 struct match_state match_state = {
1243 .in_search = 0,
1244 .match_direction = MATCH_TINKER_PATTERN_DOWN,
1245 .pattern = "",
1246 };
1247
1248 active = sym_get_choice_value(menu->sym);
1249 /* this is mostly duplicated from the conf() function. */
1250 while (!global_exit) {
1251 reset_menu();
1252
1253 for (i = 0, child = menu->list; child; child = child->next) {
1254 if (!show_all_items && !menu_is_visible(child))
1255 continue;
1256
1257 if (child->sym == sym_get_choice_value(menu->sym))
1258 item_make(child, ':', "<X> %s",
1259 _(menu_get_prompt(child)));
1260 else if (child->sym)
1261 item_make(child, ':', " %s",
1262 _(menu_get_prompt(child)));
1263 else
1264 item_make(child, ':', "*** %s ***",
1265 _(menu_get_prompt(child)));
1266
1267 if (child->sym == active){
1268 last_top_row = top_row(curses_menu);
1269 selected_index = i;
1270 }
1271 i++;
1272 }
1273 show_menu(prompt ? _(prompt) : _("Choice Menu"),
1274 _(radiolist_instructions),
1275 selected_index,
1276 &last_top_row);
1277 while (!global_exit) {
1278 if (match_state.in_search) {
1279 mvprintw(0, 0, "searching: %s",
1280 match_state.pattern);
1281 clrtoeol();
1282 }
1283 refresh_all_windows(main_window);
1284 res = wgetch(menu_win(curses_menu));
1285 if (!res)
1286 break;
1287 if (do_match(res, &match_state, &selected_index) == 0) {
1288 if (selected_index != -1)
1289 center_item(selected_index,
1290 &last_top_row);
1291 continue;
1292 }
1293 if (process_special_keys(
1294 &res,
1295 (struct menu *) item_data()))
1296 break;
1297 switch (res) {
1298 case KEY_DOWN:
1299 menu_driver(curses_menu, REQ_DOWN_ITEM);
1300 break;
1301 case KEY_UP:
1302 menu_driver(curses_menu, REQ_UP_ITEM);
1303 break;
1304 case KEY_NPAGE:
1305 menu_driver(curses_menu, REQ_SCR_DPAGE);
1306 break;
1307 case KEY_PPAGE:
1308 menu_driver(curses_menu, REQ_SCR_UPAGE);
1309 break;
1310 case KEY_HOME:
1311 menu_driver(curses_menu, REQ_FIRST_ITEM);
1312 break;
1313 case KEY_END:
1314 menu_driver(curses_menu, REQ_LAST_ITEM);
1315 break;
1316 case 'h':
1317 case '?':
1318 show_help((struct menu *) item_data());
1319 break;
1320 }
1321 if (res == 10 || res == 27 || res == ' ' ||
1322 res == KEY_LEFT){
1323 break;
1324 }
1325 refresh_all_windows(main_window);
1326 }
1327 /* if ESC or left */
1328 if (res == 27 || res == KEY_LEFT)
1329 break;
1330
1331 child = item_data();
1332 if (!child || !menu_is_visible(child) || !child->sym)
1333 continue;
1334 switch (res) {
1335 case ' ':
1336 case 10:
1337 case KEY_RIGHT:
1338 sym_set_tristate_value(child->sym, yes);
1339 return;
1340 case 'h':
1341 case '?':
1342 show_help(child);
1343 active = child->sym;
1344 break;
1345 case KEY_EXIT:
1346 return;
1347 }
1348 }
1349}
1350
1351static void conf_string(struct menu *menu)
1352{
1353 const char *prompt = menu_get_prompt(menu);
1354
1355 while (1) {
1356 int res;
1357 const char *heading;
1358
1359 switch (sym_get_type(menu->sym)) {
1360 case S_INT:
1361 heading = _(inputbox_instructions_int);
1362 break;
1363 case S_HEX:
1364 heading = _(inputbox_instructions_hex);
1365 break;
1366 case S_STRING:
1367 heading = _(inputbox_instructions_string);
1368 break;
1369 default:
1370 heading = _("Internal nconf error!");
1371 }
1372 res = dialog_inputbox(main_window,
1373 prompt ? _(prompt) : _("Main Menu"),
1374 heading,
1375 sym_get_string_value(menu->sym),
1376 &dialog_input_result,
1377 &dialog_input_result_len);
1378 switch (res) {
1379 case 0:
1380 if (sym_set_string_value(menu->sym,
1381 dialog_input_result))
1382 return;
1383 btn_dialog(main_window,
1384 _("You have made an invalid entry."), 0);
1385 break;
1386 case 1:
1387 show_help(menu);
1388 break;
1389 case KEY_EXIT:
1390 return;
1391 }
1392 }
1393}
1394
1395static void conf_load(void)
1396{
1397 while (1) {
1398 int res;
1399 res = dialog_inputbox(main_window,
1400 NULL, load_config_text,
1401 filename,
1402 &dialog_input_result,
1403 &dialog_input_result_len);
1404 switch (res) {
1405 case 0:
1406 if (!dialog_input_result[0])
1407 return;
1408 if (!conf_read(dialog_input_result)) {
1409 set_config_filename(dialog_input_result);
1410 sym_set_change_count(1);
1411 return;
1412 }
1413 btn_dialog(main_window, _("File does not exist!"), 0);
1414 break;
1415 case 1:
1416 show_scroll_win(main_window,
1417 _("Load Alternate Configuration"),
1418 load_config_help);
1419 break;
1420 case KEY_EXIT:
1421 return;
1422 }
1423 }
1424}
1425
1426static void conf_save(void)
1427{
1428 while (1) {
1429 int res;
1430 res = dialog_inputbox(main_window,
1431 NULL, save_config_text,
1432 filename,
1433 &dialog_input_result,
1434 &dialog_input_result_len);
1435 switch (res) {
1436 case 0:
1437 if (!dialog_input_result[0])
1438 return;
1439 res = conf_write(dialog_input_result);
1440 if (!res) {
1441 set_config_filename(dialog_input_result);
1442 return;
1443 }
1444 btn_dialog(main_window, _("Can't create file! "
1445 "Probably a nonexistent directory."),
1446 1, "<OK>");
1447 break;
1448 case 1:
1449 show_scroll_win(main_window,
1450 _("Save Alternate Configuration"),
1451 save_config_help);
1452 break;
1453 case KEY_EXIT:
1454 return;
1455 }
1456 }
1457}
1458
1459void setup_windows(void)
1460{
1461 int lines, columns;
1462
1463 getmaxyx(stdscr, lines, columns);
1464
1465 if (main_window != NULL)
1466 delwin(main_window);
1467
1468 /* set up the menu and menu window */
1469 main_window = newwin(lines-2, columns-2, 2, 1);
1470 keypad(main_window, TRUE);
1471 mwin_max_lines = lines-7;
1472 mwin_max_cols = columns-6;
1473
1474 /* panels order is from bottom to top */
1475 new_panel(main_window);
1476}
1477
1478int main(int ac, char **av)
1479{
1480 int lines, columns;
1481 char *mode;
1482
1483 setlocale(LC_ALL, "");
1484 bindtextdomain(PACKAGE, LOCALEDIR);
1485 textdomain(PACKAGE);
1486
1487 if (ac > 1 && strcmp(av[1], "-s") == 0) {
1488 /* Silence conf_read() until the real callback is set up */
1489 conf_set_message_callback(NULL);
1490 av++;
1491 }
1492 conf_parse(av[1]);
1493 conf_read(NULL);
1494
1495 mode = getenv("NCONFIG_MODE");
1496 if (mode) {
1497 if (!strcasecmp(mode, "single_menu"))
1498 single_menu_mode = 1;
1499 }
1500
1501 /* Initialize curses */
1502 initscr();
1503 /* set color theme */
1504 set_colors();
1505
1506 cbreak();
1507 noecho();
1508 keypad(stdscr, TRUE);
1509 curs_set(0);
1510
1511 getmaxyx(stdscr, lines, columns);
1512 if (columns < 75 || lines < 20) {
1513 endwin();
1514 printf("Your terminal should have at "
1515 "least 20 lines and 75 columns\n");
1516 return 1;
1517 }
1518
1519 notimeout(stdscr, FALSE);
1520#if NCURSES_REENTRANT
1521 set_escdelay(1);
1522#else
1523 ESCDELAY = 1;
1524#endif
1525
1526 /* set btns menu */
1527 curses_menu = new_menu(curses_menu_items);
1528 menu_opts_off(curses_menu, O_SHOWDESC);
1529 menu_opts_on(curses_menu, O_SHOWMATCH);
1530 menu_opts_on(curses_menu, O_ONEVALUE);
1531 menu_opts_on(curses_menu, O_NONCYCLIC);
1532 menu_opts_on(curses_menu, O_IGNORECASE);
1533 set_menu_mark(curses_menu, " ");
1534 set_menu_fore(curses_menu, attributes[MAIN_MENU_FORE]);
1535 set_menu_back(curses_menu, attributes[MAIN_MENU_BACK]);
1536 set_menu_grey(curses_menu, attributes[MAIN_MENU_GREY]);
1537
1538 set_config_filename(conf_get_configname());
1539 setup_windows();
1540
1541 /* check for KEY_FUNC(1) */
1542 if (has_key(KEY_F(1)) == FALSE) {
1543 show_scroll_win(main_window,
1544 _("Instructions"),
1545 _(menu_no_f_instructions));
1546 }
1547
1548 conf_set_message_callback(conf_message_callback);
1549 /* do the work */
1550 while (!global_exit) {
1551 conf(&rootmenu);
1552 if (!global_exit && do_exit() == 0)
1553 break;
1554 }
1555 /* ok, we are done */
1556 unpost_menu(curses_menu);
1557 free_menu(curses_menu);
1558 delwin(main_window);
1559 clear();
1560 refresh();
1561 endwin();
1562 return 0;
1563}