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 "command.h"
22 #include "config.h"
23 #include "ncmpc.h"
24 #include "i18n.h"
25 #include "mpdclient.h"
26 #include "screen.h"
28 #include <ctype.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <ctype.h>
32 #include <glib.h>
33 #include <signal.h>
34 #include <unistd.h>
36 #undef DEBUG_KEYS
38 #ifdef DEBUG_KEYS
39 #define DK(x) x
40 #else
41 #define DK(x)
42 #endif
44 #define BS KEY_BACKSPACE
45 #define DEL KEY_DC
46 #define UP KEY_UP
47 #define DWN KEY_DOWN
48 #define LEFT KEY_LEFT
49 #define RGHT KEY_RIGHT
50 #define HOME KEY_HOME
51 #define END KEY_END
52 #define PGDN KEY_NPAGE
53 #define PGUP KEY_PPAGE
54 #define TAB 0x09
55 #define STAB 0x161
56 #define ESC 0x1B
57 #define F1 KEY_F(1)
58 #define F2 KEY_F(2)
59 #define F3 KEY_F(3)
60 #define F4 KEY_F(4)
61 #define F5 KEY_F(5)
62 #define F6 KEY_F(6)
63 #define F7 KEY_F(7)
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 { { 'o', 0, 0 }, 0, CMD_CROP, "crop",
107 N_("Crop") },
108 { { '>', 0, 0 }, 0, CMD_TRACK_NEXT, "next",
109 N_("Next track") },
110 { { '<', 0, 0 }, 0, CMD_TRACK_PREVIOUS, "prev",
111 N_("Previous track") },
112 { { 'f', 0, 0 }, 0, CMD_SEEK_FORWARD, "seek-forward",
113 N_("Seek forward") },
114 { { 'b', 0, 0 }, 0, CMD_SEEK_BACKWARD, "seek-backward",
115 N_("Seek backward") },
116 { { '+', RGHT, 0 }, 0, CMD_VOLUME_UP, "volume-up",
117 N_("Increase volume") },
118 { { '-', LEFT, 0 }, 0, CMD_VOLUME_DOWN, "volume-down",
119 N_("Decrease volume") },
120 { { ' ', 0, 0 }, 0, CMD_SELECT, "select",
121 N_("Select/deselect song in playlist") },
122 { { 't', 0, 0 }, 0, CMD_SELECT_ALL, "select_all",
123 N_("Select all listed items") },
124 { { DEL, 'd', 0 }, 0, CMD_DELETE, "delete",
125 N_("Delete song from playlist") },
126 { { 'Z', 0, 0 }, 0, CMD_SHUFFLE, "shuffle",
127 N_("Shuffle playlist") },
128 { { 'c', 0, 0 }, 0, CMD_CLEAR, "clear",
129 N_("Clear playlist") },
130 { { 'r', 0, 0 }, 0, CMD_REPEAT, "repeat",
131 N_("Toggle repeat mode") },
132 { { 'z', 0, 0 }, 0, CMD_RANDOM, "random",
133 N_("Toggle random mode") },
134 { { 'x', 0, 0 }, 0, CMD_CROSSFADE, "crossfade",
135 N_("Toggle crossfade mode") },
136 { { 21, 0, 0 }, 0, CMD_DB_UPDATE, "db-update",
137 N_("Start a music database update") },
138 { { 'S', 0, 0 }, 0, CMD_SAVE_PLAYLIST, "save",
139 N_("Save playlist") },
140 { { 'a', 0, 0 }, 0, CMD_ADD, "add",
141 N_("Add url/file to playlist") },
143 { { '!', 0, 0 }, 0, CMD_GO_ROOT_DIRECTORY, "go-root-directory",
144 N_("Go to root directory") },
145 { { '"', 0, 0 }, 0, CMD_GO_PARENT_DIRECTORY, "go-parent-directory",
146 N_("Go to parent directory") },
148 /* lists */
149 { { 11, 0, 0 }, 0, CMD_LIST_MOVE_UP, "move-up",
150 N_("Move item up") },
151 { { 10, 0, 0 }, 0, CMD_LIST_MOVE_DOWN, "move-down",
152 N_("Move item down") },
153 { { 12, 0, 0 }, 0, CMD_SCREEN_UPDATE, "update",
154 N_("Update screen") },
157 /* ncmpc options */
158 { { 'w', 0, 0 }, 0, CMD_TOGGLE_FIND_WRAP, "wrap-mode",
159 N_("Toggle find mode") },
160 { { 'U', 0, 0 }, 0, CMD_TOGGLE_AUTOCENTER, "autocenter-mode",
161 N_("Toggle auto center mode") },
164 /* change screen */
165 { { TAB, 0, 0 }, 0, CMD_SCREEN_NEXT, "screen-next",
166 N_("Next screen") },
167 { { STAB, 0, 0 }, 0, CMD_SCREEN_PREVIOUS, "screen-prev",
168 N_("Previous screen") },
171 /* find */
172 { { '/', 0, 0 }, 0, CMD_LIST_FIND, "find",
173 N_("Forward find") },
174 { { 'n', 0, 0 }, 0, CMD_LIST_FIND_NEXT, "find-next",
175 N_("Forward find next") },
176 { { '?', 0, 0 }, 0, CMD_LIST_RFIND, "rfind",
177 N_("Backward find") },
178 { { 'p', 0, 0 }, 0, CMD_LIST_RFIND_NEXT, "rfind-next",
179 N_("Backward find previous") },
182 /* extra screens */
183 #ifdef ENABLE_ARTIST_SCREEN
184 { {'4', F4, 0 }, 0, CMD_SCREEN_ARTIST, "screen-artist",
185 N_("Artist screen") },
186 #endif
187 #ifdef ENABLE_SEARCH_SCREEN
188 { {'5', F5, 0 }, 0, CMD_SCREEN_SEARCH, "screen-search",
189 N_("Search screen") },
190 { {'m', 0, 0 }, 0, CMD_SEARCH_MODE, "search-mode",
191 N_("Change search mode") },
192 #endif
194 #ifdef ENABLE_LYRICS_SCREEN
195 { {'7', F7, 0 }, 0, CMD_SCREEN_LYRICS, "screen-lyrics",
196 N_("Lyrics screen") },
197 { {ESC, 0, 0 }, 0, CMD_INTERRUPT, "lyrics-interrupt",
198 N_("Interrupt action") },
199 { {'u', 0, 0 }, 0, CMD_LYRICS_UPDATE, "lyrics-update",
200 N_("Update Lyrics") },
201 #endif
204 { { -1, -1, -1 }, 0, CMD_NONE, NULL, NULL }
205 };
207 command_definition_t *
208 get_command_definitions(void)
209 {
210 return cmds;
211 }
213 const char *
214 key2str(int key)
215 {
216 static char buf[32];
217 int i;
219 buf[0] = 0;
220 switch(key) {
221 case 0:
222 return _("Undefined");
223 case ' ':
224 return _("Space");
225 case 13:
226 return _("Enter");
227 case BS:
228 return _("Backspace");
229 case DEL:
230 return _("Delete");
231 case UP:
232 return _("Up");
233 case DWN:
234 return _("Down");
235 case LEFT:
236 return _("Left");
237 case RGHT:
238 return _("Right");
239 case HOME:
240 return _("Home");
241 case END:
242 return _("End");
243 case PGDN:
244 return _("PageDown");
245 case PGUP:
246 return _("PageUp");
247 case TAB:
248 return _("Tab");
249 case STAB:
250 return _("Shift+Tab");
251 case ESC:
252 return _("Esc");
253 case KEY_IC:
254 return _("Insert");
255 default:
256 for (i = 0; i <= 63; i++)
257 if (key == KEY_F(i)) {
258 g_snprintf(buf, 32, "F%d", i );
259 return buf;
260 }
261 if (!(key & ~037))
262 g_snprintf(buf, 32, "Ctrl-%c", 'A'+(key & 037)-1 );
263 else if ((key & ~037) == 224)
264 g_snprintf(buf, 32, "Alt-%c", 'A'+(key & 037)-1 );
265 else if (key > 32 && key < 256)
266 g_snprintf(buf, 32, "%c", key);
267 else
268 g_snprintf(buf, 32, "0x%03X", key);
269 }
271 return buf;
272 }
274 void
275 command_dump_keys(void)
276 {
277 int i;
279 i = 0;
280 while (cmds[i].description) {
281 if (cmds[i].command != CMD_NONE)
282 printf(" %20s : %s\n", get_key_names(cmds[i].command,1),cmds[i].name);
283 i++;
284 }
285 }
287 static int
288 set_key_flags(command_definition_t *cp, command_t command, int flags)
289 {
290 int i;
292 i = 0;
293 while (cp[i].name) {
294 if (cp[i].command == command) {
295 cp[i].flags |= flags;
296 return 0;
297 }
298 i++;
299 }
301 return 1;
302 }
304 const char *
305 get_key_names(command_t command, int all)
306 {
307 int i;
309 i=0;
310 while (cmds[i].description) {
311 if (cmds[i].command == command) {
312 int j;
313 static char keystr[80];
315 g_strlcpy(keystr, key2str(cmds[i].keys[0]), sizeof(keystr));
316 if (!all)
317 return keystr;
318 j=1;
319 while (j < MAX_COMMAND_KEYS && cmds[i].keys[j] > 0) {
320 g_strlcat(keystr, " ", sizeof(keystr));
321 g_strlcat(keystr, key2str(cmds[i].keys[j]), sizeof(keystr));
322 j++;
323 }
324 return keystr;
325 }
326 i++;
327 }
328 return NULL;
329 }
331 const char *
332 get_key_description(command_t command)
333 {
334 int i;
336 i=0;
337 while (cmds[i].description) {
338 if (cmds[i].command == command)
339 return _(cmds[i].description);
340 i++;
341 }
343 return NULL;
344 }
346 const char *
347 get_key_command_name(command_t command)
348 {
349 int i;
351 i=0;
352 while (cmds[i].name) {
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 if (strcmp(name, cmds[i].name) == 0)
368 return cmds[i].command;
369 i++;
370 }
372 return CMD_NONE;
373 }
375 command_t
376 find_key_command(int key, command_definition_t *c)
377 {
378 int i;
380 i=0;
381 while (key && c && c[i].name) {
382 if (c[i].keys[0] == key ||
383 c[i].keys[1] == key ||
384 c[i].keys[2] == key)
385 return c[i].command;
386 i++;
387 }
389 return CMD_NONE;
390 }
392 command_t
393 get_key_command(int key)
394 {
395 return find_key_command(key, cmds);
396 }
398 int
399 my_wgetch(WINDOW *w)
400 {
401 int c;
403 c = wgetch(w);
405 /* handle resize event */
406 if (c == KEY_RESIZE)
407 screen_resize();
409 #ifdef ENABLE_RAW_MODE
410 /* handle SIGSTOP (Ctrl-Z) */
411 if (c == 26 || c == 407)
412 sigstop();
413 /* handle SIGINT (Ctrl-C) */
414 if (c == 3)
415 kill(getpid(), SIGTERM);
416 #endif
418 return c;
419 }
421 command_t
422 get_keyboard_command(void)
423 {
424 int key;
426 key = my_wgetch(stdscr);
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 int
439 assign_keys(command_t command, int keys[MAX_COMMAND_KEYS])
440 {
441 int i;
443 i=0;
444 while (cmds[i].name) {
445 if (cmds[i].command == command) {
446 memcpy(cmds[i].keys, keys, sizeof(int)*MAX_COMMAND_KEYS);
447 cmds[i].flags |= COMMAND_KEY_MODIFIED;
448 return 0;
449 }
450 i++;
451 }
452 return -1;
453 }
455 int
456 check_key_bindings(command_definition_t *cp, char *buf, size_t bufsize)
457 {
458 int i;
459 int retval = 0;
461 if (cp == NULL)
462 cp = cmds;
464 i=0;
465 while (cp[i].name) {
466 cp[i].flags &= ~COMMAND_KEY_CONFLICT;
467 i++;
468 }
470 i=0;
471 while (cp[i].name) {
472 int j;
473 command_t cmd;
475 for(j=0; j<MAX_COMMAND_KEYS; j++)
476 if (cp[i].keys[j] &&
477 (cmd = find_key_command(cp[i].keys[j],cp)) != cp[i].command) {
478 if (buf) {
479 #ifdef ENABLE_KEYDEF_SCREEN
480 g_snprintf(buf, bufsize,
481 _("Key %s assigned to %s and %s (press %s for the key editor)"),
482 key2str(cp[i].keys[j]),
483 get_key_command_name(cp[i].command),
484 get_key_command_name(cmd),
485 get_key_names(CMD_SCREEN_KEYDEF,0));
486 #else
487 g_snprintf(buf, bufsize,
488 _("Error: Key %s assigned to %s and %s !!!\n"),
489 key2str(cp[i].keys[j]),
490 get_key_command_name(cp[i].command),
491 get_key_command_name(cmd));
492 #endif
493 } else
494 fprintf(stderr,
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 cp[i].flags |= COMMAND_KEY_CONFLICT;
500 set_key_flags(cp, cmd, COMMAND_KEY_CONFLICT);
501 retval = -1;
502 }
503 i++;
504 }
505 return retval;
506 }
508 int
509 write_key_bindings(FILE *f, int flags)
510 {
511 int i,j;
513 if( flags & KEYDEF_WRITE_HEADER )
514 fprintf(f, "## Key bindings for ncmpc (generated by ncmpc)\n\n");
516 i=0;
517 while (cmds[i].name && !ferror(f)) {
518 if (cmds[i].flags & COMMAND_KEY_MODIFIED ||
519 flags & KEYDEF_WRITE_ALL) {
520 fprintf(f, "## %s\n", cmds[i].description);
521 if (flags & KEYDEF_COMMENT_ALL)
522 fprintf(f, "#");
523 fprintf(f, "key %s = ", cmds[i].name);
524 for (j = 0; j < MAX_COMMAND_KEYS; j++) {
525 if (j && cmds[i].keys[j])
526 fprintf(f, ", ");
527 if (!j || cmds[i].keys[j]) {
528 if (cmds[i].keys[j]<256 && (isalpha(cmds[i].keys[j]) ||
529 isdigit(cmds[i].keys[j])))
530 fprintf(f, "\'%c\'", cmds[i].keys[j]);
531 else
532 fprintf(f, "%d", cmds[i].keys[j]);
533 }
534 }
535 fprintf(f,"\n\n");
536 }
537 i++;
538 }
540 return ferror(f);
541 }