1 /*
2 * $Id$
3 *
4 * (c) 2004 by Kalle Wallin <kaw@linux.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
21 #include <ctype.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <ctype.h>
26 #include <glib.h>
27 #include <signal.h>
28 #include <ncurses.h>
30 #include "config.h"
31 #include "ncmpc.h"
32 #include "command.h"
34 #undef DEBUG_KEYS
36 #ifdef DEBUG_KEYS
37 #define DK(x) x
38 #else
39 #define DK(x)
40 #endif
42 extern void sigstop(void);
43 extern void screen_resize(void);
45 #define BS KEY_BACKSPACE
46 #define DEL KEY_DC
47 #define UP KEY_UP
48 #define DWN KEY_DOWN
49 #define LEFT KEY_LEFT
50 #define RGHT KEY_RIGHT
51 #define HOME KEY_HOME
52 #define END KEY_END
53 #define PGDN KEY_NPAGE
54 #define PGUP KEY_PPAGE
55 #define TAB 0x09
56 #define STAB 0x161
57 #define ESC 0x1B
58 #define F1 KEY_F(1)
59 #define F2 KEY_F(2)
60 #define F3 KEY_F(3)
61 #define F4 KEY_F(4)
62 #define F5 KEY_F(5)
63 #define F6 KEY_F(6)
66 static command_definition_t cmds[] =
67 {
68 #ifdef ENABLE_KEYDEF_SCREEN
69 { {'K', 0, 0 }, 0, CMD_SCREEN_KEYDEF, "screen-keyedit",
70 N_("Key configuration screen") },
71 #endif
72 { { 'q', 'Q', 3 }, 0, CMD_QUIT, "quit",
73 N_("Quit") },
75 /* movment */
76 { { UP, 'k', 0 }, 0, CMD_LIST_PREVIOUS, "up",
77 N_("Move cursor up") },
78 { { DWN, 'j', 0 }, 0, CMD_LIST_NEXT, "down",
79 N_("Move cursor down") },
80 { { HOME, 0x01, 0 }, 0, CMD_LIST_FIRST, "home",
81 N_("Home ") },
82 { { END, 0x05, 0 }, 0, CMD_LIST_LAST, "end",
83 N_("End ") },
84 { { PGUP, 0, 0 }, 0, CMD_LIST_PREVIOUS_PAGE, "pgup",
85 N_("Page up") },
86 { { PGDN, 0, 0 }, 0, CMD_LIST_NEXT_PAGE, "pgdn",
87 N_("Page down") },
90 /* basic screens */
91 { { '1', F1, 'h' }, 0, CMD_SCREEN_HELP, "screen-help",
92 N_("Help screen") },
93 { { '2', F2, 0 }, 0, CMD_SCREEN_PLAY, "screen-playlist",
94 N_("Playlist screen") },
95 { { '3', F3, 0 }, 0, CMD_SCREEN_FILE, "screen-browse",
96 N_("Browse screen") },
99 /* player commands */
100 { { 13, 0, 0 }, 0, CMD_PLAY, "play",
101 N_("Play/Enter directory") },
102 { { 'P', 0, 0 }, 0, CMD_PAUSE,"pause",
103 N_("Pause") },
104 { { 's', BS, 0 }, 0, CMD_STOP, "stop",
105 N_("Stop") },
106 { { '>', 0, 0 }, 0, CMD_TRACK_NEXT, "next",
107 N_("Next track") },
108 { { '<', 0, 0 }, 0, CMD_TRACK_PREVIOUS, "prev",
109 N_("Previous track") },
110 { { 'f', 0, 0 }, 0, CMD_SEEK_FORWARD, "seek-forward",
111 N_("Seek forward") },
112 { { 'b', 0, 0 }, 0, CMD_SEEK_BACKWARD, "seek-backward",
113 N_("Seek backward") },
114 { { '+', RGHT, 0 }, 0, CMD_VOLUME_UP, "volume-up",
115 N_("Increase volume") },
116 { { '-', LEFT, 0 }, 0, CMD_VOLUME_DOWN, "volume-down",
117 N_("Decrease volume") },
118 { { ' ', 0, 0 }, 0, CMD_SELECT, "select",
119 N_("Select/deselect song in playlist") },
120 { { DEL, 'd', 0 }, 0, CMD_DELETE, "delete",
121 N_("Delete song from playlist") },
122 { { 'Z', 0, 0 }, 0, CMD_SHUFFLE, "shuffle",
123 N_("Shuffle playlist") },
124 { { 'c', 0, 0 }, 0, CMD_CLEAR, "clear",
125 N_("Clear playlist") },
126 { { 'r', 0, 0 }, 0, CMD_REPEAT, "repeat",
127 N_("Toggle repeat mode") },
128 { { 'z', 0, 0 }, 0, CMD_RANDOM, "random",
129 N_("Toggle random mode") },
130 { { 'x', 0, 0 }, 0, CMD_CROSSFADE, "crossfade",
131 N_("Toggle crossfade mode") },
132 { { 21, 0, 0 }, 0, CMD_DB_UPDATE, "db-update",
133 N_("Start a music database update") },
134 { { 'S', 0, 0 }, 0, CMD_SAVE_PLAYLIST, "save",
135 N_("Save playlist") },
136 { { 'a', 0, 0 }, 0, CMD_ADD, "add",
137 N_("Add url/file to playlist") },
140 /* lists */
141 { { 11, 0, 0 }, 0, CMD_LIST_MOVE_UP, "move-up",
142 N_("Move item up") },
143 { { 10, 0, 0 }, 0, CMD_LIST_MOVE_DOWN, "move-down",
144 N_("Move item down") },
145 { { 12, 0, 0 }, 0, CMD_SCREEN_UPDATE, "update",
146 N_("Update screen") },
149 /* ncmpc options */
150 { { 'w', 0, 0 }, 0, CMD_TOGGLE_FIND_WRAP, "wrap-mode",
151 N_("Toggle find mode") },
152 { { 'U', 0, 0 }, 0, CMD_TOGGLE_AUTOCENTER, "autocenter-mode",
153 N_("Toggle auto center mode") },
156 /* change screen */
157 { { TAB, 0, 0 }, 0, CMD_SCREEN_NEXT, "screen-next",
158 N_("Next screen") },
159 { { STAB, 0, 0 }, 0, CMD_SCREEN_PREVIOUS, "screen-prev",
160 N_("Previous screen") },
163 /* find */
164 { { '/', 0, 0 }, 0, CMD_LIST_FIND, "find",
165 N_("Forward find") },
166 { { 'n', 0, 0 }, 0, CMD_LIST_FIND_NEXT, "find-next",
167 N_("Forward find next") },
168 { { '?', 0, 0 }, 0, CMD_LIST_RFIND, "rfind",
169 N_("Backward find") },
170 { { 'p', 0, 0 }, 0, CMD_LIST_RFIND_NEXT, "rfind-next",
171 N_("Backward find previous") },
174 /* extra screens */
175 #ifdef ENABLE_SEARCH_SCREEN
176 { {'4', F4, 0 }, 0, CMD_SCREEN_SEARCH, "screen-search",
177 N_("Search screen") },
178 { {'m', 0, 0 }, 0, CMD_SEARCH_MODE, "search-mode",
179 N_("Change search mode") },
180 #endif
182 #ifdef ENABLE_CLOCK_SCREEN
183 { {'5', F5, 0 }, 0, CMD_SCREEN_CLOCK, "screen-clock",
184 N_("Clock screen") },
185 #endif
187 { { -1, -1, -1 }, 0, CMD_NONE, NULL, NULL }
188 };
190 command_definition_t *
191 get_command_definitions(void)
192 {
193 return cmds;
194 }
196 char *
197 key2str(int key)
198 {
199 static char buf[32];
200 int i;
202 buf[0] = 0;
203 switch(key)
204 {
205 case 0:
206 return _("Undefined");
207 case ' ':
208 return _("Space");
209 case 13:
210 return _("Enter");
211 case BS:
212 return _("Backspace");
213 case DEL:
214 return _("Delete");
215 case UP:
216 return _("Up");
217 case DWN:
218 return _("Down");
219 case LEFT:
220 return _("Left");
221 case RGHT:
222 return _("Right");
223 case HOME:
224 return _("Home");
225 case END:
226 return _("End");
227 case PGDN:
228 return _("PageDown");
229 case PGUP:
230 return _("PageUp");
231 case TAB:
232 return _("Tab");
233 case STAB:
234 return _("Shift+Tab");
235 case ESC:
236 return _("Esc");
237 case KEY_IC:
238 return _("Insert");
239 default:
240 for(i=0; i<=63; i++)
241 if( key==KEY_F(i) )
242 {
243 g_snprintf(buf, 32, "F%d", i );
244 return buf;
245 }
246 if( !(key & ~037) )
247 g_snprintf(buf, 32, "Ctrl-%c", 'A'+(key & 037)-1 );
248 else if( (key & ~037) == 224 )
249 g_snprintf(buf, 32, "Alt-%c", 'A'+(key & 037)-1 );
250 else if( key>32 && key<256 )
251 g_snprintf(buf, 32, "%c", key);
252 else
253 g_snprintf(buf, 32, "0x%03X", key);
254 }
255 return buf;
256 }
258 void
259 command_dump_keys(void)
260 {
261 int i;
263 i=0;
264 while( cmds[i].description )
265 {
266 if( cmds[i].command != CMD_NONE )
267 printf(" %20s : %s\n", get_key_names(cmds[i].command,1),cmds[i].name);
268 i++;
269 }
270 }
272 int
273 set_key_flags(command_definition_t *cp, command_t command, int flags)
274 {
275 int i;
277 i=0;
278 while( cp[i].name )
279 {
280 if( cp[i].command == command )
281 {
282 cp[i].flags |= flags;
283 return 0;
284 }
285 i++;
286 }
287 return 1;
288 }
290 char *
291 get_key_names(command_t command, int all)
292 {
293 int i;
295 i=0;
296 while( cmds[i].description )
297 {
298 if( cmds[i].command == command )
299 {
300 int j;
301 static char keystr[80];
303 g_strlcpy(keystr, key2str(cmds[i].keys[0]), sizeof(keystr));
304 if( !all )
305 return keystr;
306 j=1;
307 while( j<MAX_COMMAND_KEYS && cmds[i].keys[j]>0 )
308 {
309 g_strlcat(keystr, " ", sizeof(keystr));
310 g_strlcat(keystr, key2str(cmds[i].keys[j]), sizeof(keystr));
311 j++;
312 }
313 return keystr;
314 }
315 i++;
316 }
317 return NULL;
318 }
320 char *
321 get_key_description(command_t command)
322 {
323 int i;
325 i=0;
326 while( cmds[i].description )
327 {
328 if( cmds[i].command == command )
329 return _(cmds[i].description);
330 i++;
331 }
332 return NULL;
333 }
335 char *
336 get_key_command_name(command_t command)
337 {
338 int i;
340 i=0;
341 while( cmds[i].name )
342 {
343 if( cmds[i].command == command )
344 return cmds[i].name;
345 i++;
346 }
347 return NULL;
348 }
350 command_t
351 get_key_command_from_name(char *name)
352 {
353 int i;
355 i=0;
356 while( cmds[i].name )
357 {
358 if( strcmp(name, cmds[i].name) == 0 )
359 return cmds[i].command;
360 i++;
361 }
362 return CMD_NONE;
363 }
366 command_t
367 find_key_command(int key, command_definition_t *cmds)
368 {
369 int i;
371 i=0;
372 while( key && cmds && cmds[i].name )
373 {
374 if( cmds[i].keys[0] == key ||
375 cmds[i].keys[1] == key ||
376 cmds[i].keys[2] == key )
377 return cmds[i].command;
378 i++;
379 }
380 return CMD_NONE;
381 }
383 command_t
384 get_key_command(int key)
385 {
386 return find_key_command(key, cmds);
387 }
389 int
390 my_wgetch(WINDOW *w)
391 {
392 int c;
394 c = wgetch(w);
396 /* handle resize event */
397 if( c==KEY_RESIZE )
398 screen_resize();
400 #ifdef ENABLE_RAW_MODE
401 /* handle SIGSTOP (Ctrl-Z) */
402 if( c==26 || c==407 )
403 sigstop();
404 /* handle SIGINT (Ctrl-C) */
405 if( c==3 )
406 exit(EXIT_SUCCESS);
407 #endif
409 return c;
410 }
412 command_t
413 get_keyboard_command_with_timeout(int ms)
414 {
415 int key;
417 if( ms != SCREEN_TIMEOUT)
418 timeout(ms);
419 key = my_wgetch(stdscr);
420 if( ms != SCREEN_TIMEOUT)
421 timeout(SCREEN_TIMEOUT);
423 if( key==ERR )
424 return CMD_NONE;
426 #ifdef HAVE_GETMOUSE
427 if( key==KEY_MOUSE )
428 return CMD_MOUSE_EVENT;
429 #endif
431 return get_key_command(key);
432 }
434 command_t
435 get_keyboard_command(void)
436 {
437 return get_keyboard_command_with_timeout(SCREEN_TIMEOUT);
438 }
440 int
441 assign_keys(command_t command, int keys[MAX_COMMAND_KEYS])
442 {
443 int i;
445 i=0;
446 while( cmds[i].name )
447 {
448 if( cmds[i].command == command )
449 {
450 memcpy(cmds[i].keys, keys, sizeof(int)*MAX_COMMAND_KEYS);
451 cmds[i].flags |= COMMAND_KEY_MODIFIED;
452 return 0;
453 }
454 i++;
455 }
456 return -1;
457 }
459 int
460 check_key_bindings(command_definition_t *cp, char *buf, size_t bufsize)
461 {
462 int i;
463 int retval = 0;
465 if( cp==NULL )
466 cp = cmds;
468 i=0;
469 while( cp[i].name )
470 {
471 cp[i].flags &= ~COMMAND_KEY_CONFLICT;
472 i++;
473 }
475 i=0;
476 while( cp[i].name )
477 {
478 int j;
479 command_t cmd;
481 for(j=0; j<MAX_COMMAND_KEYS; j++)
482 if( cp[i].keys[j] &&
483 (cmd=find_key_command(cp[i].keys[j],cp)) != cp[i].command )
484 {
485 if( buf )
486 #ifdef ENABLE_KEYDEF_SCREEN
487 g_snprintf(buf, bufsize,
488 _("Key %s assigned to %s and %s (press %s for the key editor)"),
489 key2str(cp[i].keys[j]),
490 get_key_command_name(cp[i].command),
491 get_key_command_name(cmd),
492 get_key_names(CMD_SCREEN_KEYDEF,0));
493 #else
494 g_snprintf(buf, bufsize,
495 _("Error: Key %s assigned to %s and %s !!!\n"),
496 key2str(cp[i].keys[j]),
497 get_key_command_name(cp[i].command),
498 get_key_command_name(cmd));
499 #endif
500 else
501 fprintf(stderr,
502 _("Error: Key %s assigned to %s and %s !!!\n"),
503 key2str(cp[i].keys[j]),
504 get_key_command_name(cp[i].command),
505 get_key_command_name(cmd));
506 cp[i].flags |= COMMAND_KEY_CONFLICT;
507 set_key_flags(cp, cmd, COMMAND_KEY_CONFLICT);
508 retval = -1;
509 }
510 i++;
511 }
512 return retval;
513 }
515 int
516 write_key_bindings(FILE *f, int flags)
517 {
518 int i,j;
520 if( flags & KEYDEF_WRITE_HEADER )
521 fprintf(f, "## Key bindings for ncmpc (generated by ncmpc)\n\n");
523 i=0;
524 while( cmds[i].name && !ferror(f) )
525 {
526 if( cmds[i].flags & COMMAND_KEY_MODIFIED || flags & KEYDEF_WRITE_ALL)
527 {
528 fprintf(f, "## %s\n", cmds[i].description);
529 if( flags & KEYDEF_COMMENT_ALL )
530 fprintf(f, "#");
531 fprintf(f, "key %s = ", cmds[i].name);
532 for(j=0; j<MAX_COMMAND_KEYS; j++)
533 {
534 if( j && cmds[i].keys[j] )
535 fprintf(f, ", ");
536 if( !j || cmds[i].keys[j] )
537 {
538 if( cmds[i].keys[j]<256 && (isalpha(cmds[i].keys[j]) ||
539 isdigit(cmds[i].keys[j])) )
540 fprintf(f, "\'%c\'", cmds[i].keys[j]);
541 else
542 fprintf(f, "%d", cmds[i].keys[j]);
543 }
544 }
545 fprintf(f,"\n\n");
546 }
547 i++;
548 }
549 return ferror(f);
550 }