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_ARTIST_SCREEN
176 { {'4', F4, 0 }, 0, CMD_SCREEN_ARTIST, "screen-artist",
177 N_("Artist screen") },
178 #endif
179 #ifdef ENABLE_SEARCH_SCREEN
180 { {'5', F5, 0 }, 0, CMD_SCREEN_SEARCH, "screen-search",
181 N_("Search screen") },
182 { {'m', 0, 0 }, 0, CMD_SEARCH_MODE, "search-mode",
183 N_("Change search mode") },
184 #endif
186 #ifdef ENABLE_CLOCK_SCREEN
187 { {'6', F6, 0 }, 0, CMD_SCREEN_CLOCK, "screen-clock",
188 N_("Clock screen") },
189 #endif
191 { { -1, -1, -1 }, 0, CMD_NONE, NULL, NULL }
192 };
194 command_definition_t *
195 get_command_definitions(void)
196 {
197 return cmds;
198 }
200 char *
201 key2str(int key)
202 {
203 static char buf[32];
204 int i;
206 buf[0] = 0;
207 switch(key)
208 {
209 case 0:
210 return _("Undefined");
211 case ' ':
212 return _("Space");
213 case 13:
214 return _("Enter");
215 case BS:
216 return _("Backspace");
217 case DEL:
218 return _("Delete");
219 case UP:
220 return _("Up");
221 case DWN:
222 return _("Down");
223 case LEFT:
224 return _("Left");
225 case RGHT:
226 return _("Right");
227 case HOME:
228 return _("Home");
229 case END:
230 return _("End");
231 case PGDN:
232 return _("PageDown");
233 case PGUP:
234 return _("PageUp");
235 case TAB:
236 return _("Tab");
237 case STAB:
238 return _("Shift+Tab");
239 case ESC:
240 return _("Esc");
241 case KEY_IC:
242 return _("Insert");
243 default:
244 for(i=0; i<=63; i++)
245 if( key==KEY_F(i) )
246 {
247 g_snprintf(buf, 32, "F%d", i );
248 return buf;
249 }
250 if( !(key & ~037) )
251 g_snprintf(buf, 32, "Ctrl-%c", 'A'+(key & 037)-1 );
252 else if( (key & ~037) == 224 )
253 g_snprintf(buf, 32, "Alt-%c", 'A'+(key & 037)-1 );
254 else if( key>32 && key<256 )
255 g_snprintf(buf, 32, "%c", key);
256 else
257 g_snprintf(buf, 32, "0x%03X", key);
258 }
259 return buf;
260 }
262 void
263 command_dump_keys(void)
264 {
265 int i;
267 i=0;
268 while( cmds[i].description )
269 {
270 if( cmds[i].command != CMD_NONE )
271 printf(" %20s : %s\n", get_key_names(cmds[i].command,1),cmds[i].name);
272 i++;
273 }
274 }
276 int
277 set_key_flags(command_definition_t *cp, command_t command, int flags)
278 {
279 int i;
281 i=0;
282 while( cp[i].name )
283 {
284 if( cp[i].command == command )
285 {
286 cp[i].flags |= flags;
287 return 0;
288 }
289 i++;
290 }
291 return 1;
292 }
294 char *
295 get_key_names(command_t command, int all)
296 {
297 int i;
299 i=0;
300 while( cmds[i].description )
301 {
302 if( cmds[i].command == command )
303 {
304 int j;
305 static char keystr[80];
307 g_strlcpy(keystr, key2str(cmds[i].keys[0]), sizeof(keystr));
308 if( !all )
309 return keystr;
310 j=1;
311 while( j<MAX_COMMAND_KEYS && cmds[i].keys[j]>0 )
312 {
313 g_strlcat(keystr, " ", sizeof(keystr));
314 g_strlcat(keystr, key2str(cmds[i].keys[j]), sizeof(keystr));
315 j++;
316 }
317 return keystr;
318 }
319 i++;
320 }
321 return NULL;
322 }
324 char *
325 get_key_description(command_t command)
326 {
327 int i;
329 i=0;
330 while( cmds[i].description )
331 {
332 if( cmds[i].command == command )
333 return _(cmds[i].description);
334 i++;
335 }
336 return NULL;
337 }
339 char *
340 get_key_command_name(command_t command)
341 {
342 int i;
344 i=0;
345 while( cmds[i].name )
346 {
347 if( cmds[i].command == command )
348 return cmds[i].name;
349 i++;
350 }
351 return NULL;
352 }
354 command_t
355 get_key_command_from_name(char *name)
356 {
357 int i;
359 i=0;
360 while( cmds[i].name )
361 {
362 if( strcmp(name, cmds[i].name) == 0 )
363 return cmds[i].command;
364 i++;
365 }
366 return CMD_NONE;
367 }
370 command_t
371 find_key_command(int key, command_definition_t *cmds)
372 {
373 int i;
375 i=0;
376 while( key && cmds && cmds[i].name )
377 {
378 if( cmds[i].keys[0] == key ||
379 cmds[i].keys[1] == key ||
380 cmds[i].keys[2] == key )
381 return cmds[i].command;
382 i++;
383 }
384 return CMD_NONE;
385 }
387 command_t
388 get_key_command(int key)
389 {
390 return find_key_command(key, cmds);
391 }
393 int
394 my_wgetch(WINDOW *w)
395 {
396 int c;
398 c = wgetch(w);
400 /* handle resize event */
401 if( c==KEY_RESIZE )
402 screen_resize();
404 #ifdef ENABLE_RAW_MODE
405 /* handle SIGSTOP (Ctrl-Z) */
406 if( c==26 || c==407 )
407 sigstop();
408 /* handle SIGINT (Ctrl-C) */
409 if( c==3 )
410 exit(EXIT_SUCCESS);
411 #endif
413 return c;
414 }
416 command_t
417 get_keyboard_command_with_timeout(int ms)
418 {
419 int key;
421 if( ms != SCREEN_TIMEOUT)
422 timeout(ms);
423 key = my_wgetch(stdscr);
424 if( ms != SCREEN_TIMEOUT)
425 timeout(SCREEN_TIMEOUT);
427 if( key==ERR )
428 return CMD_NONE;
430 #ifdef HAVE_GETMOUSE
431 if( key==KEY_MOUSE )
432 return CMD_MOUSE_EVENT;
433 #endif
435 return get_key_command(key);
436 }
438 command_t
439 get_keyboard_command(void)
440 {
441 return get_keyboard_command_with_timeout(SCREEN_TIMEOUT);
442 }
444 int
445 assign_keys(command_t command, int keys[MAX_COMMAND_KEYS])
446 {
447 int i;
449 i=0;
450 while( cmds[i].name )
451 {
452 if( cmds[i].command == command )
453 {
454 memcpy(cmds[i].keys, keys, sizeof(int)*MAX_COMMAND_KEYS);
455 cmds[i].flags |= COMMAND_KEY_MODIFIED;
456 return 0;
457 }
458 i++;
459 }
460 return -1;
461 }
463 int
464 check_key_bindings(command_definition_t *cp, char *buf, size_t bufsize)
465 {
466 int i;
467 int retval = 0;
469 if( cp==NULL )
470 cp = cmds;
472 i=0;
473 while( cp[i].name )
474 {
475 cp[i].flags &= ~COMMAND_KEY_CONFLICT;
476 i++;
477 }
479 i=0;
480 while( cp[i].name )
481 {
482 int j;
483 command_t cmd;
485 for(j=0; j<MAX_COMMAND_KEYS; j++)
486 if( cp[i].keys[j] &&
487 (cmd=find_key_command(cp[i].keys[j],cp)) != cp[i].command )
488 {
489 if( buf )
490 #ifdef ENABLE_KEYDEF_SCREEN
491 g_snprintf(buf, bufsize,
492 _("Key %s assigned to %s and %s (press %s for the key editor)"),
493 key2str(cp[i].keys[j]),
494 get_key_command_name(cp[i].command),
495 get_key_command_name(cmd),
496 get_key_names(CMD_SCREEN_KEYDEF,0));
497 #else
498 g_snprintf(buf, bufsize,
499 _("Error: Key %s assigned to %s and %s !!!\n"),
500 key2str(cp[i].keys[j]),
501 get_key_command_name(cp[i].command),
502 get_key_command_name(cmd));
503 #endif
504 else
505 fprintf(stderr,
506 _("Error: Key %s assigned to %s and %s !!!\n"),
507 key2str(cp[i].keys[j]),
508 get_key_command_name(cp[i].command),
509 get_key_command_name(cmd));
510 cp[i].flags |= COMMAND_KEY_CONFLICT;
511 set_key_flags(cp, cmd, COMMAND_KEY_CONFLICT);
512 retval = -1;
513 }
514 i++;
515 }
516 return retval;
517 }
519 int
520 write_key_bindings(FILE *f, int flags)
521 {
522 int i,j;
524 if( flags & KEYDEF_WRITE_HEADER )
525 fprintf(f, "## Key bindings for ncmpc (generated by ncmpc)\n\n");
527 i=0;
528 while( cmds[i].name && !ferror(f) )
529 {
530 if( cmds[i].flags & COMMAND_KEY_MODIFIED || flags & KEYDEF_WRITE_ALL)
531 {
532 fprintf(f, "## %s\n", cmds[i].description);
533 if( flags & KEYDEF_COMMENT_ALL )
534 fprintf(f, "#");
535 fprintf(f, "key %s = ", cmds[i].name);
536 for(j=0; j<MAX_COMMAND_KEYS; j++)
537 {
538 if( j && cmds[i].keys[j] )
539 fprintf(f, ", ");
540 if( !j || cmds[i].keys[j] )
541 {
542 if( cmds[i].keys[j]<256 && (isalpha(cmds[i].keys[j]) ||
543 isdigit(cmds[i].keys[j])) )
544 fprintf(f, "\'%c\'", cmds[i].keys[j]);
545 else
546 fprintf(f, "%d", cmds[i].keys[j]);
547 }
548 }
549 fprintf(f,"\n\n");
550 }
551 i++;
552 }
553 return ferror(f);
554 }