398a46f78af3239b6a5f6c61190401433c66d056
1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2009 The Music Player Daemon Project
3 * Project homepage: http://musicpd.org
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
20 #include "config.h"
21 #include "ncmpc.h"
22 #include "mpdclient.h"
23 #include "charset.h"
24 #include "options.h"
25 #include "command.h"
26 #include "ncu.h"
27 #include "screen.h"
28 #include "screen_utils.h"
29 #include "strfsong.h"
30 #include "i18n.h"
31 #include "player_command.h"
33 #ifndef NCMPC_MINI
34 #include "conf.h"
35 #endif
37 #ifdef ENABLE_LYRICS_SCREEN
38 #include "lyrics.h"
39 #endif
41 #ifdef ENABLE_LIRC
42 #include "lirc.h"
43 #endif
45 #include <mpd/client.h>
47 #include <stdlib.h>
48 #include <unistd.h>
49 #include <signal.h>
50 #include <string.h>
52 #ifdef ENABLE_LOCALE
53 #include <locale.h>
54 #endif
56 /* time between mpd updates [s] */
57 static const guint update_interval = 500;
59 #define BUFSIZE 1024
61 static struct mpdclient *mpd = NULL;
62 static GMainLoop *main_loop;
63 static guint reconnect_source_id, update_source_id;
65 #ifndef NCMPC_MINI
66 static guint check_key_bindings_source_id;
67 #endif
69 static const gchar *
70 error_msg(const gchar *msg)
71 {
72 gchar *p;
74 if ((p = strchr(msg, '}')) == NULL)
75 return msg;
77 do {
78 p++;
79 } while (*p == '}' || * p== ' ');
81 return p;
82 }
84 static void
85 error_callback(G_GNUC_UNUSED struct mpdclient *c, gint error, const gchar *_msg)
86 {
87 char *msg = utf8_to_locale(_msg);
89 error = error & 0xFF;
90 switch (error) {
91 case MPD_ERROR_SERVER:
92 screen_status_printf("%s", error_msg(msg));
93 screen_bell();
94 break;
95 default:
96 screen_status_printf("%s", msg);
97 screen_bell();
98 doupdate();
99 }
101 g_free(msg);
102 }
104 #ifndef NCMPC_MINI
105 static void
106 update_xterm_title(void)
107 {
108 static char title[BUFSIZE];
109 char tmp[BUFSIZE];
110 struct mpd_status *status = NULL;
111 struct mpd_song *song = NULL;
113 if (mpd) {
114 status = mpd->status;
115 song = mpd->song;
116 }
118 if (options.xterm_title_format && status && song &&
119 IS_PLAYING(mpd_status_get_state(status)))
120 strfsong(tmp, BUFSIZE, options.xterm_title_format, song);
121 else
122 g_strlcpy(tmp, PACKAGE " version " VERSION, BUFSIZE);
124 if (strncmp(title, tmp, BUFSIZE)) {
125 g_strlcpy(title, tmp, BUFSIZE);
126 set_xterm_title("%s", title);
127 }
128 }
129 #endif
131 static void
132 exit_and_cleanup(void)
133 {
134 screen_exit();
135 #ifndef NCMPC_MINI
136 set_xterm_title("");
137 #endif
138 printf("\n");
140 if (mpd) {
141 mpdclient_disconnect(mpd);
142 mpdclient_free(mpd);
143 }
144 }
146 static void
147 catch_sigint(G_GNUC_UNUSED int sig)
148 {
149 g_main_loop_quit(main_loop);
150 }
153 static void
154 catch_sigcont(G_GNUC_UNUSED int sig)
155 {
156 screen_resize(mpd);
157 }
159 void
160 sigstop(void)
161 {
162 def_prog_mode(); /* save the tty modes */
163 endwin(); /* end curses mode temporarily */
164 kill(0, SIGSTOP); /* issue SIGSTOP */
165 }
167 static guint timer_sigwinch_id;
169 static gboolean
170 timer_sigwinch(G_GNUC_UNUSED gpointer data)
171 {
172 /* the following causes the screen to flicker. There might be
173 better solutions, but I believe it isn't all that
174 important. */
176 endwin();
177 refresh();
178 screen_resize(mpd);
180 return FALSE;
181 }
183 static void
184 catch_sigwinch(G_GNUC_UNUSED int sig)
185 {
186 if (timer_sigwinch_id != 0)
187 g_source_remove(timer_sigwinch_id);
189 timer_sigwinch_id = g_timeout_add(100, timer_sigwinch, NULL);
190 }
192 static gboolean
193 timer_mpd_update(gpointer data);
195 /**
196 * This timer is installed when the connection to the MPD server is
197 * broken. It tries to recover by reconnecting periodically.
198 */
199 static gboolean
200 timer_reconnect(G_GNUC_UNUSED gpointer data)
201 {
202 int ret;
204 assert(!mpdclient_is_connected(mpd));
206 screen_status_printf(_("Connecting to %s... [Press %s to abort]"),
207 options.host, get_key_names(CMD_QUIT,0) );
208 doupdate();
210 mpdclient_disconnect(mpd);
211 ret = mpdclient_connect(mpd,
212 options.host, options.port,
213 1.5,
214 options.password);
215 if (ret != 0) {
216 /* try again in 5 seconds */
217 g_timeout_add(5000, timer_reconnect, NULL);
218 return FALSE;
219 }
221 #ifndef NCMPC_MINI
222 /* quit if mpd is pre 0.11.0 - song id not supported by mpd */
223 if (mpd_connection_cmp_server_version(mpd->connection, 0, 11, 0) < 0) {
224 const unsigned *version =
225 mpd_connection_get_server_version(mpd->connection);
226 screen_status_printf(_("Error: MPD version %d.%d.%d is to old (%s needed)"),
227 version[0], version[1], version[2],
228 "0.11.0");
229 mpdclient_disconnect(mpd);
230 doupdate();
232 /* try again after 30 seconds */
233 g_timeout_add(30000, timer_reconnect, NULL);
234 return FALSE;
235 }
236 #endif
238 screen_status_printf(_("Connected to %s"),
239 options.host != NULL
240 ? options.host : "localhost");
241 doupdate();
243 /* update immediately */
244 g_timeout_add(1, timer_mpd_update, GINT_TO_POINTER(FALSE));
246 reconnect_source_id = 0;
247 return FALSE;
249 }
251 static gboolean
252 timer_mpd_update(gpointer data)
253 {
254 if (mpdclient_is_connected(mpd))
255 mpdclient_update(mpd);
256 else if (reconnect_source_id == 0)
257 reconnect_source_id = g_timeout_add(1000, timer_reconnect,
258 NULL);
260 #ifndef NCMPC_MINI
261 if (options.enable_xterm_title)
262 update_xterm_title();
263 #endif
265 screen_update(mpd);
267 return GPOINTER_TO_INT(data);
268 }
270 void begin_input_event(void)
271 {
272 }
274 void end_input_event(void)
275 {
276 screen_update(mpd);
277 }
279 int do_input_event(command_t cmd)
280 {
281 if (cmd == CMD_QUIT) {
282 g_main_loop_quit(main_loop);
283 return -1;
284 }
286 screen_cmd(mpd, cmd);
288 if (cmd == CMD_VOLUME_UP || cmd == CMD_VOLUME_DOWN) {
289 /* make sure we don't update the volume yet */
290 g_source_remove(update_source_id);
291 update_source_id = g_timeout_add(update_interval,
292 timer_mpd_update,
293 GINT_TO_POINTER(TRUE));
294 }
296 return 0;
297 }
299 static gboolean
300 keyboard_event(G_GNUC_UNUSED GIOChannel *source,
301 G_GNUC_UNUSED GIOCondition condition,
302 G_GNUC_UNUSED gpointer data)
303 {
304 command_t cmd;
306 begin_input_event();
308 if ((cmd=get_keyboard_command()) != CMD_NONE)
309 if (do_input_event(cmd) != 0)
310 return FALSE;
312 end_input_event();
313 return TRUE;
314 }
316 #ifndef NCMPC_MINI
317 /**
318 * Check the configured key bindings for errors, and display a status
319 * message every 10 seconds.
320 */
321 static gboolean
322 timer_check_key_bindings(G_GNUC_UNUSED gpointer data)
323 {
324 char buf[256];
325 #ifdef ENABLE_KEYDEF_SCREEN
326 char comment[64];
327 #endif
328 gboolean key_error;
330 key_error = check_key_bindings(NULL, buf, sizeof(buf));
331 if (!key_error) {
332 /* no error: disable this timer for the rest of this
333 process */
334 check_key_bindings_source_id = 0;
335 return FALSE;
336 }
338 #ifdef ENABLE_KEYDEF_SCREEN
339 g_strchomp(buf);
340 g_strlcat(buf, " (", sizeof(buf));
341 /* to translators: a key was bound twice in the key editor,
342 and this is a hint for the user what to press to correct
343 that */
344 g_snprintf(comment, sizeof(comment), _("press %s for the key editor"),
345 get_key_names(CMD_SCREEN_KEYDEF, 0));
346 g_strlcat(buf, comment, sizeof(buf));
347 g_strlcat(buf, ")", sizeof(buf));
348 #endif
350 screen_status_printf("%s", buf);
352 doupdate();
353 return TRUE;
354 }
355 #endif
357 int
358 main(int argc, const char *argv[])
359 {
360 struct sigaction act;
361 #ifdef ENABLE_LOCALE
362 const char *charset = NULL;
363 #endif
364 GIOChannel *keyboard_channel;
365 #ifdef ENABLE_LIRC
366 int lirc_socket;
367 GIOChannel *lirc_channel = NULL;
368 #endif
370 #ifdef ENABLE_LOCALE
371 /* time and date formatting */
372 setlocale(LC_TIME,"");
373 /* care about sorting order etc */
374 setlocale(LC_COLLATE,"");
375 /* charset */
376 setlocale(LC_CTYPE,"");
377 /* initialize charset conversions */
378 charset = charset_init();
380 /* initialize i18n support */
381 #endif
383 #ifdef ENABLE_NLS
384 setlocale(LC_MESSAGES, "");
385 bindtextdomain(GETTEXT_PACKAGE, LOCALE_DIR);
386 #ifdef ENABLE_LOCALE
387 bind_textdomain_codeset(GETTEXT_PACKAGE, charset);
388 #endif
389 textdomain(GETTEXT_PACKAGE);
390 #endif
392 /* initialize options */
393 options_init();
395 /* parse command line options - 1 pass get configuration files */
396 options_parse(argc, argv);
398 #ifndef NCMPC_MINI
399 /* read configuration */
400 read_configuration();
402 /* check key bindings */
403 check_key_bindings(NULL, NULL, 0);
404 #endif
406 /* parse command line options - 2 pass */
407 options_parse(argc, argv);
409 /* setup signal behavior - SIGINT */
410 sigemptyset(&act.sa_mask);
411 act.sa_flags = 0;
412 act.sa_handler = catch_sigint;
413 if (sigaction(SIGINT, &act, NULL) < 0) {
414 perror("signal");
415 exit(EXIT_FAILURE);
416 }
418 /* setup signal behavior - SIGTERM */
420 act.sa_handler = catch_sigint;
421 if (sigaction(SIGTERM, &act, NULL) < 0) {
422 perror("sigaction()");
423 exit(EXIT_FAILURE);
424 }
426 /* setup signal behavior - SIGCONT */
428 act.sa_handler = catch_sigcont;
429 if (sigaction(SIGCONT, &act, NULL) < 0) {
430 perror("sigaction(SIGCONT)");
431 exit(EXIT_FAILURE);
432 }
434 /* setup signal behaviour - SIGHUP*/
436 act.sa_handler = catch_sigint;
437 if (sigaction(SIGHUP, &act, NULL) < 0) {
438 perror("sigaction(SIGHUP)");
439 exit(EXIT_FAILURE);
440 }
442 /* setup SIGWINCH */
444 act.sa_flags = SA_RESTART;
445 act.sa_handler = catch_sigwinch;
446 if (sigaction(SIGWINCH, &act, NULL) < 0) {
447 perror("sigaction(SIGWINCH)");
448 exit(EXIT_FAILURE);
449 }
451 /* ignore SIGPIPE */
453 act.sa_handler = SIG_IGN;
454 if (sigaction(SIGPIPE, &act, NULL) < 0) {
455 perror("sigaction(SIGPIPE)");
456 exit(EXIT_FAILURE);
457 }
459 ncu_init();
461 #ifdef ENABLE_LYRICS_SCREEN
462 lyrics_init();
463 #endif
465 /* create mpdclient instance */
466 mpd = mpdclient_new();
467 mpdclient_install_error_callback(mpd, error_callback);
469 /* initialize curses */
470 screen_init(mpd);
472 /* the main loop */
473 main_loop = g_main_loop_new(NULL, FALSE);
475 /* watch out for keyboard input */
476 keyboard_channel = g_io_channel_unix_new(STDIN_FILENO);
477 g_io_add_watch(keyboard_channel, G_IO_IN, keyboard_event, NULL);
479 #ifdef ENABLE_LIRC
480 /* watch out for lirc input */
481 lirc_socket = ncmpc_lirc_open();
482 if (lirc_socket >= 0) {
483 lirc_channel = g_io_channel_unix_new(lirc_socket);
484 g_io_add_watch(lirc_channel, G_IO_IN, lirc_event, NULL);
485 }
486 #endif
488 /* attempt to connect */
489 reconnect_source_id = g_timeout_add(1, timer_reconnect, NULL);
491 update_source_id = g_timeout_add(update_interval,
492 timer_mpd_update,
493 GINT_TO_POINTER(TRUE));
494 #ifndef NCMPC_MINI
495 check_key_bindings_source_id = g_timeout_add(10000, timer_check_key_bindings, NULL);
496 #endif
498 screen_paint(mpd);
500 g_main_loop_run(main_loop);
502 /* cleanup */
504 cancel_seek_timer();
506 g_source_remove(update_source_id);
508 #ifndef NCMPC_MINI
509 if (check_key_bindings_source_id != 0)
510 g_source_remove(check_key_bindings_source_id);
511 #endif
513 g_main_loop_unref(main_loop);
514 g_io_channel_unref(keyboard_channel);
516 #ifdef ENABLE_LIRC
517 if (lirc_socket >= 0)
518 g_io_channel_unref(lirc_channel);
519 ncmpc_lirc_close();
520 #endif
522 exit_and_cleanup();
524 #ifdef ENABLE_LYRICS_SCREEN
525 lyrics_deinit();
526 #endif
528 ncu_deinit();
529 options_deinit();
531 return 0;
532 }