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)
64 #define F7 KEY_F(7)
67 static command_definition_t cmds[] =
68 {
69 #ifdef ENABLE_KEYDEF_SCREEN
70 { {'K', 0, 0 }, 0, CMD_SCREEN_KEYDEF, "screen-keyedit",
71 N_("Key configuration screen") },
72 #endif
73 { { 'q', 'Q', 3 }, 0, CMD_QUIT, "quit",
74 N_("Quit") },
76 /* movment */
77 { { UP, 'k', 0 }, 0, CMD_LIST_PREVIOUS, "up",
78 N_("Move cursor up") },
79 { { DWN, 'j', 0 }, 0, CMD_LIST_NEXT, "down",
80 N_("Move cursor down") },
81 { { HOME, 0x01, 0 }, 0, CMD_LIST_FIRST, "home",
82 N_("Home ") },
83 { { END, 0x05, 0 }, 0, CMD_LIST_LAST, "end",
84 N_("End ") },
85 { { PGUP, 0, 0 }, 0, CMD_LIST_PREVIOUS_PAGE, "pgup",
86 N_("Page up") },
87 { { PGDN, 0, 0 }, 0, CMD_LIST_NEXT_PAGE, "pgdn",
88 N_("Page down") },
91 /* basic screens */
92 { { '1', F1, 'h' }, 0, CMD_SCREEN_HELP, "screen-help",
93 N_("Help screen") },
94 { { '2', F2, 0 }, 0, CMD_SCREEN_PLAY, "screen-playlist",
95 N_("Playlist screen") },
96 { { '3', F3, 0 }, 0, CMD_SCREEN_FILE, "screen-browse",
97 N_("Browse screen") },
100 /* player commands */
101 { { 13, 0, 0 }, 0, CMD_PLAY, "play",
102 N_("Play/Enter directory") },
103 { { 'P', 0, 0 }, 0, CMD_PAUSE,"pause",
104 N_("Pause") },
105 { { 's', BS, 0 }, 0, CMD_STOP, "stop",
106 N_("Stop") },
107 { { '>', 0, 0 }, 0, CMD_TRACK_NEXT, "next",
108 N_("Next track") },
109 { { '<', 0, 0 }, 0, CMD_TRACK_PREVIOUS, "prev",
110 N_("Previous track") },
111 { { 'f', 0, 0 }, 0, CMD_SEEK_FORWARD, "seek-forward",
112 N_("Seek forward") },
113 { { 'b', 0, 0 }, 0, CMD_SEEK_BACKWARD, "seek-backward",
114 N_("Seek backward") },
115 { { '+', RGHT, 0 }, 0, CMD_VOLUME_UP, "volume-up",
116 N_("Increase volume") },
117 { { '-', LEFT, 0 }, 0, CMD_VOLUME_DOWN, "volume-down",
118 N_("Decrease volume") },
119 { { ' ', 0, 0 }, 0, CMD_SELECT, "select",
120 N_("Select/deselect song in playlist") },
121 { { DEL, 'd', 0 }, 0, CMD_DELETE, "delete",
122 N_("Delete song from playlist") },
123 { { 'Z', 0, 0 }, 0, CMD_SHUFFLE, "shuffle",
124 N_("Shuffle playlist") },
125 { { 'c', 0, 0 }, 0, CMD_CLEAR, "clear",
126 N_("Clear playlist") },
127 { { 'r', 0, 0 }, 0, CMD_REPEAT, "repeat",
128 N_("Toggle repeat mode") },
129 { { 'z', 0, 0 }, 0, CMD_RANDOM, "random",
130 N_("Toggle random mode") },
131 { { 'x', 0, 0 }, 0, CMD_CROSSFADE, "crossfade",
132 N_("Toggle crossfade mode") },
133 { { 21, 0, 0 }, 0, CMD_DB_UPDATE, "db-update",
134 N_("Start a music database update") },
135 { { 'S', 0, 0 }, 0, CMD_SAVE_PLAYLIST, "save",
136 N_("Save playlist") },
137 { { 'a', 0, 0 }, 0, CMD_ADD, "add",
138 N_("Add url/file to playlist") },
141 /* lists */
142 { { 11, 0, 0 }, 0, CMD_LIST_MOVE_UP, "move-up",
143 N_("Move item up") },
144 { { 10, 0, 0 }, 0, CMD_LIST_MOVE_DOWN, "move-down",
145 N_("Move item down") },
146 { { 12, 0, 0 }, 0, CMD_SCREEN_UPDATE, "update",
147 N_("Update screen") },
150 /* ncmpc options */
151 { { 'w', 0, 0 }, 0, CMD_TOGGLE_FIND_WRAP, "wrap-mode",
152 N_("Toggle find mode") },
153 { { 'U', 0, 0 }, 0, CMD_TOGGLE_AUTOCENTER, "autocenter-mode",
154 N_("Toggle auto center mode") },
157 /* change screen */
158 { { TAB, 0, 0 }, 0, CMD_SCREEN_NEXT, "screen-next",
159 N_("Next screen") },
160 { { STAB, 0, 0 }, 0, CMD_SCREEN_PREVIOUS, "screen-prev",
161 N_("Previous screen") },
164 /* find */
165 { { '/', 0, 0 }, 0, CMD_LIST_FIND, "find",
166 N_("Forward find") },
167 { { 'n', 0, 0 }, 0, CMD_LIST_FIND_NEXT, "find-next",
168 N_("Forward find next") },
169 { { '?', 0, 0 }, 0, CMD_LIST_RFIND, "rfind",
170 N_("Backward find") },
171 { { 'p', 0, 0 }, 0, CMD_LIST_RFIND_NEXT, "rfind-next",
172 N_("Backward find previous") },
175 /* extra screens */
176 #ifdef ENABLE_ARTIST_SCREEN
177 { {'4', F4, 0 }, 0, CMD_SCREEN_ARTIST, "screen-artist",
178 N_("Artist screen") },
179 #endif
180 #ifdef ENABLE_SEARCH_SCREEN
181 { {'5', F5, 0 }, 0, CMD_SCREEN_SEARCH, "screen-search",
182 N_("Search screen") },
183 { {'m', 0, 0 }, 0, CMD_SEARCH_MODE, "search-mode",
184 N_("Change search mode") },
185 #endif
187 #ifdef ENABLE_CLOCK_SCREEN
188 { {'6', F6, 0 }, 0, CMD_SCREEN_CLOCK, "screen-clock",
189 N_("Clock screen") },
190 #endif
191 #ifdef ENABLE_LYRICS_SCREEN
192 { {'7', F7, 0 }, 0, CMD_SCREEN_LYRICS, "screen-lyrics",
193 N_("Lyrics screen") },
194 #endif
197 { { -1, -1, -1 }, 0, CMD_NONE, NULL, NULL }
198 };
200 command_definition_t *
201 get_command_definitions(void)
202 {
203 return cmds;
204 }
206 char *
207 key2str(int key)
208 {
209 static char buf[32];
210 int i;
212 buf[0] = 0;
213 switch(key)
214 {
215 case 0:
216 return _("Undefined");
217 case ' ':
218 return _("Space");
219 case 13:
220 return _("Enter");
221 case BS:
222 return _("Backspace");
223 case DEL:
224 return _("Delete");
225 case UP:
226 return _("Up");
227 case DWN:
228 return _("Down");
229 case LEFT:
230 return _("Left");
231 case RGHT:
232 return _("Right");
233 case HOME:
234 return _("Home");
235 case END:
236 return _("End");
237 case PGDN:
238 return _("PageDown");
239 case PGUP:
240 return _("PageUp");
241 case TAB:
242 return _("Tab");
243 case STAB:
244 return _("Shift+Tab");
245 case ESC:
246 return _("Esc");
247 case KEY_IC:
248 return _("Insert");
249 default:
250 for(i=0; i<=63; i++)
251 if( key==KEY_F(i) )
252 {
253 g_snprintf(buf, 32, "F%d", i );
254 return buf;
255 }
256 if( !(key & ~037) )
257 g_snprintf(buf, 32, "Ctrl-%c", 'A'+(key & 037)-1 );
258 else if( (key & ~037) == 224 )
259 g_snprintf(buf, 32, "Alt-%c", 'A'+(key & 037)-1 );
260 else if( key>32 && key<256 )
261 g_snprintf(buf, 32, "%c", key);
262 else
263 g_snprintf(buf, 32, "0x%03X", key);
264 }
265 return buf;
266 }
268 void
269 command_dump_keys(void)
270 {
271 int i;
273 i=0;
274 while( cmds[i].description )
275 {
276 if( cmds[i].command != CMD_NONE )
277 printf(" %20s : %s\n", get_key_names(cmds[i].command,1),cmds[i].name);
278 i++;
279 }
280 }
282 int
283 set_key_flags(command_definition_t *cp, command_t command, int flags)
284 {
285 int i;
287 i=0;
288 while( cp[i].name )
289 {
290 if( cp[i].command == command )
291 {
292 cp[i].flags |= flags;
293 return 0;
294 }
295 i++;
296 }
297 return 1;
298 }
300 char *
301 get_key_names(command_t command, int all)
302 {
303 int i;
305 i=0;
306 while( cmds[i].description )
307 {
308 if( cmds[i].command == command )
309 {
310 int j;
311 static char keystr[80];
313 g_strlcpy(keystr, key2str(cmds[i].keys[0]), sizeof(keystr));
314 if( !all )
315 return keystr;
316 j=1;
317 while( j<MAX_COMMAND_KEYS && cmds[i].keys[j]>0 )
318 {
319 g_strlcat(keystr, " ", sizeof(keystr));
320 g_strlcat(keystr, key2str(cmds[i].keys[j]), sizeof(keystr));
321 j++;
322 }
323 return keystr;
324 }
325 i++;
326 }
327 return NULL;
328 }
330 char *
331 get_key_description(command_t command)
332 {
333 int i;
335 i=0;
336 while( cmds[i].description )
337 {
338 if( cmds[i].command == command )
339 return _(cmds[i].description);
340 i++;
341 }
342 return NULL;
343 }
345 char *
346 get_key_command_name(command_t command)
347 {
348 int i;
350 i=0;
351 while( cmds[i].name )
352 {
353 if( cmds[i].command == command )
354 return cmds[i].name;
355 i++;
356 }
357 return NULL;
358 }
360 command_t
361 get_key_command_from_name(char *name)
362 {
363 int i;
365 i=0;
366 while( cmds[i].name )
367 {
368 if( strcmp(name, cmds[i].name) == 0 )
369 return cmds[i].command;
370 i++;
371 }
372 return CMD_NONE;
373 }
376 command_t
377 find_key_command(int key, command_definition_t *cmds)
378 {
379 int i;
381 i=0;
382 while( key && cmds && cmds[i].name )
383 {
384 if( cmds[i].keys[0] == key ||
385 cmds[i].keys[1] == key ||
386 cmds[i].keys[2] == key )
387 return cmds[i].command;
388 i++;
389 }
390 return CMD_NONE;
391 }
393 command_t
394 get_key_command(int key)
395 {
396 return find_key_command(key, cmds);
397 }
399 int
400 my_wgetch(WINDOW *w)
401 {
402 int c;
404 c = wgetch(w);
406 /* handle resize event */
407 if( c==KEY_RESIZE )
408 screen_resize();
410 #ifdef ENABLE_RAW_MODE
411 /* handle SIGSTOP (Ctrl-Z) */
412 if( c==26 || c==407 )
413 sigstop();
414 /* handle SIGINT (Ctrl-C) */
415 if( c==3 )
416 exit(EXIT_SUCCESS);
417 #endif
419 return c;
420 }
422 command_t
423 get_keyboard_command_with_timeout(int ms)
424 {
425 int key;
427 if( ms != SCREEN_TIMEOUT)
428 timeout(ms);
429 key = my_wgetch(stdscr);
430 if( ms != SCREEN_TIMEOUT)
431 timeout(SCREEN_TIMEOUT);
433 if( key==ERR )
434 return CMD_NONE;
436 #ifdef HAVE_GETMOUSE
437 if( key==KEY_MOUSE )
438 return CMD_MOUSE_EVENT;
439 #endif
441 return get_key_command(key);
442 }
444 command_t
445 get_keyboard_command(void)
446 {
447 return get_keyboard_command_with_timeout(SCREEN_TIMEOUT);
448 }
450 int
451 assign_keys(command_t command, int keys[MAX_COMMAND_KEYS])
452 {
453 int i;
455 i=0;
456 while( cmds[i].name )
457 {
458 if( cmds[i].command == command )
459 {
460 memcpy(cmds[i].keys, keys, sizeof(int)*MAX_COMMAND_KEYS);
461 cmds[i].flags |= COMMAND_KEY_MODIFIED;
462 return 0;
463 }
464 i++;
465 }
466 return -1;
467 }
469 int
470 check_key_bindings(command_definition_t *cp, char *buf, size_t bufsize)
471 {
472 int i;
473 int retval = 0;
475 if( cp==NULL )
476 cp = cmds;
478 i=0;
479 while( cp[i].name )
480 {
481 cp[i].flags &= ~COMMAND_KEY_CONFLICT;
482 i++;
483 }
485 i=0;
486 while( cp[i].name )
487 {
488 int j;
489 command_t cmd;
491 for(j=0; j<MAX_COMMAND_KEYS; j++)
492 if( cp[i].keys[j] &&
493 (cmd=find_key_command(cp[i].keys[j],cp)) != cp[i].command )
494 {
495 if( buf )
496 #ifdef ENABLE_KEYDEF_SCREEN
497 g_snprintf(buf, bufsize,
498 _("Key %s assigned to %s and %s (press %s for the key editor)"),
499 key2str(cp[i].keys[j]),
500 get_key_command_name(cp[i].command),
501 get_key_command_name(cmd),
502 get_key_names(CMD_SCREEN_KEYDEF,0));
503 #else
504 g_snprintf(buf, bufsize,
505 _("Error: Key %s assigned to %s and %s !!!\n"),
506 key2str(cp[i].keys[j]),
507 get_key_command_name(cp[i].command),
508 get_key_command_name(cmd));
509 #endif
510 else
511 fprintf(stderr,
512 _("Error: Key %s assigned to %s and %s !!!\n"),
513 key2str(cp[i].keys[j]),
514 get_key_command_name(cp[i].command),
515 get_key_command_name(cmd));
516 cp[i].flags |= COMMAND_KEY_CONFLICT;
517 set_key_flags(cp, cmd, COMMAND_KEY_CONFLICT);
518 retval = -1;
519 }
520 i++;
521 }
522 return retval;
523 }
525 int
526 write_key_bindings(FILE *f, int flags)
527 {
528 int i,j;
530 if( flags & KEYDEF_WRITE_HEADER )
531 fprintf(f, "## Key bindings for ncmpc (generated by ncmpc)\n\n");
533 i=0;
534 while( cmds[i].name && !ferror(f) )
535 {
536 if( cmds[i].flags & COMMAND_KEY_MODIFIED || flags & KEYDEF_WRITE_ALL)
537 {
538 fprintf(f, "## %s\n", cmds[i].description);
539 if( flags & KEYDEF_COMMENT_ALL )
540 fprintf(f, "#");
541 fprintf(f, "key %s = ", cmds[i].name);
542 for(j=0; j<MAX_COMMAND_KEYS; j++)
543 {
544 if( j && cmds[i].keys[j] )
545 fprintf(f, ", ");
546 if( !j || cmds[i].keys[j] )
547 {
548 if( cmds[i].keys[j]<256 && (isalpha(cmds[i].keys[j]) ||
549 isdigit(cmds[i].keys[j])) )
550 fprintf(f, "\'%c\'", cmds[i].keys[j]);
551 else
552 fprintf(f, "%d", cmds[i].keys[j]);
553 }
554 }
555 fprintf(f,"\n\n");
556 }
557 i++;
558 }
559 return ferror(f);
560 }