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