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 "mpdclient.h"
25 #include "screen.h"
27 #include <ctype.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <ctype.h>
31 #include <glib.h>
32 #include <signal.h>
33 #include <unistd.h>
35 #undef DEBUG_KEYS
37 #ifdef DEBUG_KEYS
38 #define DK(x) x
39 #else
40 #define DK(x)
41 #endif
43 #define BS KEY_BACKSPACE
44 #define DEL KEY_DC
45 #define UP KEY_UP
46 #define DWN KEY_DOWN
47 #define LEFT KEY_LEFT
48 #define RGHT KEY_RIGHT
49 #define HOME KEY_HOME
50 #define END KEY_END
51 #define PGDN KEY_NPAGE
52 #define PGUP KEY_PPAGE
53 #define TAB 0x09
54 #define STAB 0x161
55 #define ESC 0x1B
56 #define F1 KEY_F(1)
57 #define F2 KEY_F(2)
58 #define F3 KEY_F(3)
59 #define F4 KEY_F(4)
60 #define F5 KEY_F(5)
61 #define F6 KEY_F(6)
62 #define F7 KEY_F(7)
65 static command_definition_t cmds[] =
66 {
67 #ifdef ENABLE_KEYDEF_SCREEN
68 { {'K', 0, 0 }, 0, CMD_SCREEN_KEYDEF, "screen-keyedit",
69 N_("Key configuration screen") },
70 #endif
71 { { 'q', 'Q', 3 }, 0, CMD_QUIT, "quit",
72 N_("Quit") },
74 /* movment */
75 { { UP, 'k', 0 }, 0, CMD_LIST_PREVIOUS, "up",
76 N_("Move cursor up") },
77 { { DWN, 'j', 0 }, 0, CMD_LIST_NEXT, "down",
78 N_("Move cursor down") },
79 { { HOME, 0x01, 0 }, 0, CMD_LIST_FIRST, "home",
80 N_("Home ") },
81 { { END, 0x05, 0 }, 0, CMD_LIST_LAST, "end",
82 N_("End ") },
83 { { PGUP, 0, 0 }, 0, CMD_LIST_PREVIOUS_PAGE, "pgup",
84 N_("Page up") },
85 { { PGDN, 0, 0 }, 0, CMD_LIST_NEXT_PAGE, "pgdn",
86 N_("Page down") },
89 /* basic screens */
90 { { '1', F1, 'h' }, 0, CMD_SCREEN_HELP, "screen-help",
91 N_("Help screen") },
92 { { '2', F2, 0 }, 0, CMD_SCREEN_PLAY, "screen-playlist",
93 N_("Playlist screen") },
94 { { '3', F3, 0 }, 0, CMD_SCREEN_FILE, "screen-browse",
95 N_("Browse screen") },
98 /* player commands */
99 { { 13, 0, 0 }, 0, CMD_PLAY, "play",
100 N_("Play/Enter directory") },
101 { { 'P', 0, 0 }, 0, CMD_PAUSE,"pause",
102 N_("Pause") },
103 { { 's', BS, 0 }, 0, CMD_STOP, "stop",
104 N_("Stop") },
105 { { 'o', 0, 0 }, 0, CMD_CROP, "crop",
106 N_("Crop") },
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 { { 't', 0, 0 }, 0, CMD_SELECT_ALL, "select_all",
122 N_("Select all listed items") },
123 { { DEL, 'd', 0 }, 0, CMD_DELETE, "delete",
124 N_("Delete song from playlist") },
125 { { 'Z', 0, 0 }, 0, CMD_SHUFFLE, "shuffle",
126 N_("Shuffle playlist") },
127 { { 'c', 0, 0 }, 0, CMD_CLEAR, "clear",
128 N_("Clear playlist") },
129 { { 'r', 0, 0 }, 0, CMD_REPEAT, "repeat",
130 N_("Toggle repeat mode") },
131 { { 'z', 0, 0 }, 0, CMD_RANDOM, "random",
132 N_("Toggle random mode") },
133 { { 'x', 0, 0 }, 0, CMD_CROSSFADE, "crossfade",
134 N_("Toggle crossfade mode") },
135 { { 21, 0, 0 }, 0, CMD_DB_UPDATE, "db-update",
136 N_("Start a music database update") },
137 { { 'S', 0, 0 }, 0, CMD_SAVE_PLAYLIST, "save",
138 N_("Save playlist") },
139 { { 'a', 0, 0 }, 0, CMD_ADD, "add",
140 N_("Add url/file to playlist") },
142 { { '!', 0, 0 }, 0, CMD_GO_ROOT_DIRECTORY, "go-root-directory",
143 N_("Go to root directory") },
144 { { '"', 0, 0 }, 0, CMD_GO_PARENT_DIRECTORY, "go-parent-directory",
145 N_("Go to parent directory") },
147 /* lists */
148 { { 11, 0, 0 }, 0, CMD_LIST_MOVE_UP, "move-up",
149 N_("Move item up") },
150 { { 10, 0, 0 }, 0, CMD_LIST_MOVE_DOWN, "move-down",
151 N_("Move item down") },
152 { { 12, 0, 0 }, 0, CMD_SCREEN_UPDATE, "update",
153 N_("Update screen") },
156 /* ncmpc options */
157 { { 'w', 0, 0 }, 0, CMD_TOGGLE_FIND_WRAP, "wrap-mode",
158 N_("Toggle find mode") },
159 { { 'U', 0, 0 }, 0, CMD_TOGGLE_AUTOCENTER, "autocenter-mode",
160 N_("Toggle auto center mode") },
163 /* change screen */
164 { { TAB, 0, 0 }, 0, CMD_SCREEN_NEXT, "screen-next",
165 N_("Next screen") },
166 { { STAB, 0, 0 }, 0, CMD_SCREEN_PREVIOUS, "screen-prev",
167 N_("Previous screen") },
170 /* find */
171 { { '/', 0, 0 }, 0, CMD_LIST_FIND, "find",
172 N_("Forward find") },
173 { { 'n', 0, 0 }, 0, CMD_LIST_FIND_NEXT, "find-next",
174 N_("Forward find next") },
175 { { '?', 0, 0 }, 0, CMD_LIST_RFIND, "rfind",
176 N_("Backward find") },
177 { { 'p', 0, 0 }, 0, CMD_LIST_RFIND_NEXT, "rfind-next",
178 N_("Backward find previous") },
181 /* extra screens */
182 #ifdef ENABLE_ARTIST_SCREEN
183 { {'4', F4, 0 }, 0, CMD_SCREEN_ARTIST, "screen-artist",
184 N_("Artist screen") },
185 #endif
186 #ifdef ENABLE_SEARCH_SCREEN
187 { {'5', F5, 0 }, 0, CMD_SCREEN_SEARCH, "screen-search",
188 N_("Search screen") },
189 { {'m', 0, 0 }, 0, CMD_SEARCH_MODE, "search-mode",
190 N_("Change search mode") },
191 #endif
193 #ifdef ENABLE_LYRICS_SCREEN
194 { {'7', F7, 0 }, 0, CMD_SCREEN_LYRICS, "screen-lyrics",
195 N_("Lyrics screen") },
196 { {ESC, 0, 0 }, 0, CMD_INTERRUPT, "lyrics-interrupt",
197 N_("Interrupt action") },
198 { {'u', 0, 0 }, 0, CMD_LYRICS_UPDATE, "lyrics-update",
199 N_("Update Lyrics") },
200 #endif
203 { { -1, -1, -1 }, 0, CMD_NONE, NULL, NULL }
204 };
206 command_definition_t *
207 get_command_definitions(void)
208 {
209 return cmds;
210 }
212 const char *
213 key2str(int key)
214 {
215 static char buf[32];
216 int i;
218 buf[0] = 0;
219 switch(key) {
220 case 0:
221 return _("Undefined");
222 case ' ':
223 return _("Space");
224 case 13:
225 return _("Enter");
226 case BS:
227 return _("Backspace");
228 case DEL:
229 return _("Delete");
230 case UP:
231 return _("Up");
232 case DWN:
233 return _("Down");
234 case LEFT:
235 return _("Left");
236 case RGHT:
237 return _("Right");
238 case HOME:
239 return _("Home");
240 case END:
241 return _("End");
242 case PGDN:
243 return _("PageDown");
244 case PGUP:
245 return _("PageUp");
246 case TAB:
247 return _("Tab");
248 case STAB:
249 return _("Shift+Tab");
250 case ESC:
251 return _("Esc");
252 case KEY_IC:
253 return _("Insert");
254 default:
255 for (i = 0; i <= 63; i++)
256 if (key == KEY_F(i)) {
257 g_snprintf(buf, 32, "F%d", i );
258 return buf;
259 }
260 if (!(key & ~037))
261 g_snprintf(buf, 32, "Ctrl-%c", 'A'+(key & 037)-1 );
262 else if ((key & ~037) == 224)
263 g_snprintf(buf, 32, "Alt-%c", 'A'+(key & 037)-1 );
264 else if (key > 32 && key < 256)
265 g_snprintf(buf, 32, "%c", key);
266 else
267 g_snprintf(buf, 32, "0x%03X", key);
268 }
270 return buf;
271 }
273 void
274 command_dump_keys(void)
275 {
276 int i;
278 i = 0;
279 while (cmds[i].description) {
280 if (cmds[i].command != CMD_NONE)
281 printf(" %20s : %s\n", get_key_names(cmds[i].command,1),cmds[i].name);
282 i++;
283 }
284 }
286 static int
287 set_key_flags(command_definition_t *cp, command_t command, int flags)
288 {
289 int i;
291 i = 0;
292 while (cp[i].name) {
293 if (cp[i].command == command) {
294 cp[i].flags |= flags;
295 return 0;
296 }
297 i++;
298 }
300 return 1;
301 }
303 const char *
304 get_key_names(command_t command, int all)
305 {
306 int i;
308 i=0;
309 while (cmds[i].description) {
310 if (cmds[i].command == command) {
311 int j;
312 static char keystr[80];
314 g_strlcpy(keystr, key2str(cmds[i].keys[0]), sizeof(keystr));
315 if (!all)
316 return keystr;
317 j=1;
318 while (j < MAX_COMMAND_KEYS && cmds[i].keys[j] > 0) {
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 const char *
331 get_key_description(command_t command)
332 {
333 int i;
335 i=0;
336 while (cmds[i].description) {
337 if (cmds[i].command == command)
338 return _(cmds[i].description);
339 i++;
340 }
342 return NULL;
343 }
345 const char *
346 get_key_command_name(command_t command)
347 {
348 int i;
350 i=0;
351 while (cmds[i].name) {
352 if (cmds[i].command == command)
353 return cmds[i].name;
354 i++;
355 }
356 return NULL;
357 }
359 command_t
360 get_key_command_from_name(char *name)
361 {
362 int i;
364 i=0;
365 while (cmds[i].name) {
366 if (strcmp(name, cmds[i].name) == 0)
367 return cmds[i].command;
368 i++;
369 }
371 return CMD_NONE;
372 }
374 command_t
375 find_key_command(int key, command_definition_t *c)
376 {
377 int i;
379 i=0;
380 while (key && c && c[i].name) {
381 if (c[i].keys[0] == key ||
382 c[i].keys[1] == key ||
383 c[i].keys[2] == key)
384 return c[i].command;
385 i++;
386 }
388 return CMD_NONE;
389 }
391 command_t
392 get_key_command(int key)
393 {
394 return find_key_command(key, cmds);
395 }
397 int
398 my_wgetch(WINDOW *w)
399 {
400 int c;
402 c = wgetch(w);
404 /* handle resize event */
405 if (c == KEY_RESIZE)
406 screen_resize();
408 #ifdef ENABLE_RAW_MODE
409 /* handle SIGSTOP (Ctrl-Z) */
410 if (c == 26 || c == 407)
411 sigstop();
412 /* handle SIGINT (Ctrl-C) */
413 if (c == 3)
414 kill(getpid(), SIGTERM);
415 #endif
417 return c;
418 }
420 command_t
421 get_keyboard_command(void)
422 {
423 int key;
425 key = my_wgetch(stdscr);
426 if (key == ERR)
427 return CMD_NONE;
429 #ifdef HAVE_GETMOUSE
430 if (key == KEY_MOUSE)
431 return CMD_MOUSE_EVENT;
432 #endif
434 return get_key_command(key);
435 }
437 int
438 assign_keys(command_t command, int keys[MAX_COMMAND_KEYS])
439 {
440 int i;
442 i=0;
443 while (cmds[i].name) {
444 if (cmds[i].command == command) {
445 memcpy(cmds[i].keys, keys, sizeof(int)*MAX_COMMAND_KEYS);
446 cmds[i].flags |= COMMAND_KEY_MODIFIED;
447 return 0;
448 }
449 i++;
450 }
451 return -1;
452 }
454 int
455 check_key_bindings(command_definition_t *cp, char *buf, size_t bufsize)
456 {
457 int i;
458 int retval = 0;
460 if (cp == NULL)
461 cp = cmds;
463 i=0;
464 while (cp[i].name) {
465 cp[i].flags &= ~COMMAND_KEY_CONFLICT;
466 i++;
467 }
469 i=0;
470 while (cp[i].name) {
471 int j;
472 command_t cmd;
474 for(j=0; j<MAX_COMMAND_KEYS; j++)
475 if (cp[i].keys[j] &&
476 (cmd = find_key_command(cp[i].keys[j],cp)) != cp[i].command) {
477 if (buf) {
478 #ifdef ENABLE_KEYDEF_SCREEN
479 g_snprintf(buf, bufsize,
480 _("Key %s assigned to %s and %s (press %s for the key editor)"),
481 key2str(cp[i].keys[j]),
482 get_key_command_name(cp[i].command),
483 get_key_command_name(cmd),
484 get_key_names(CMD_SCREEN_KEYDEF,0));
485 #else
486 g_snprintf(buf, bufsize,
487 _("Error: Key %s assigned to %s and %s !!!\n"),
488 key2str(cp[i].keys[j]),
489 get_key_command_name(cp[i].command),
490 get_key_command_name(cmd));
491 #endif
492 } else
493 fprintf(stderr,
494 _("Error: Key %s assigned to %s and %s !!!\n"),
495 key2str(cp[i].keys[j]),
496 get_key_command_name(cp[i].command),
497 get_key_command_name(cmd));
498 cp[i].flags |= COMMAND_KEY_CONFLICT;
499 set_key_flags(cp, cmd, COMMAND_KEY_CONFLICT);
500 retval = -1;
501 }
502 i++;
503 }
504 return retval;
505 }
507 int
508 write_key_bindings(FILE *f, int flags)
509 {
510 int i,j;
512 if( flags & KEYDEF_WRITE_HEADER )
513 fprintf(f, "## Key bindings for ncmpc (generated by ncmpc)\n\n");
515 i=0;
516 while (cmds[i].name && !ferror(f)) {
517 if (cmds[i].flags & COMMAND_KEY_MODIFIED ||
518 flags & KEYDEF_WRITE_ALL) {
519 fprintf(f, "## %s\n", cmds[i].description);
520 if (flags & KEYDEF_COMMENT_ALL)
521 fprintf(f, "#");
522 fprintf(f, "key %s = ", cmds[i].name);
523 for (j = 0; j < MAX_COMMAND_KEYS; j++) {
524 if (j && cmds[i].keys[j])
525 fprintf(f, ", ");
526 if (!j || cmds[i].keys[j]) {
527 if (cmds[i].keys[j]<256 && (isalpha(cmds[i].keys[j]) ||
528 isdigit(cmds[i].keys[j])))
529 fprintf(f, "\'%c\'", cmds[i].keys[j]);
530 else
531 fprintf(f, "%d", cmds[i].keys[j]);
532 }
533 }
534 fprintf(f,"\n\n");
535 }
536 i++;
537 }
539 return ferror(f);
540 }