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