1 /*
2 * (c) 2004 by Kalle Wallin <kaw@linux.se>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 */
19 #include "config.h"
20 #include "ncmpc.h"
21 #include "mpdclient.h"
22 #include "charset.h"
23 #include "options.h"
24 #include "conf.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 "gcc.h"
33 #ifdef ENABLE_LYRICS_SCREEN
34 #include "lyrics.h"
35 #endif
37 #include <stdlib.h>
38 #include <unistd.h>
39 #include <signal.h>
40 #include <string.h>
42 /* time between mpd updates [s] */
43 static const guint update_interval = 500;
45 #define BUFSIZE 1024
47 static const guint idle_interval = 500;
49 static mpdclient_t *mpd = NULL;
50 static gboolean connected = FALSE;
51 static GMainLoop *main_loop;
52 static guint reconnect_source_id, idle_source_id, update_source_id;
54 static const gchar *
55 error_msg(const gchar *msg)
56 {
57 gchar *p;
59 if ((p = strchr(msg, '}')) == NULL)
60 return msg;
62 while (p && *p && (*p=='}' || *p==' '))
63 p++;
65 return p;
66 }
68 static void
69 error_callback(mpd_unused mpdclient_t *c, gint error, const gchar *msg)
70 {
71 error = error & 0xFF;
72 switch (error) {
73 case MPD_ERROR_CONNPORT:
74 case MPD_ERROR_NORESPONSE:
75 break;
76 case MPD_ERROR_ACK:
77 screen_status_printf("%s", error_msg(msg));
78 screen_bell();
79 break;
80 default:
81 screen_status_printf("%s", msg);
82 screen_bell();
83 doupdate();
84 connected = FALSE;
85 }
86 }
88 static void
89 update_xterm_title(void)
90 {
91 static char title[BUFSIZE];
92 char tmp[BUFSIZE];
93 mpd_Status *status = NULL;
94 mpd_Song *song = NULL;
96 if (mpd) {
97 status = mpd->status;
98 song = mpd->song;
99 }
101 if (options.xterm_title_format && status && song &&
102 IS_PLAYING(status->state))
103 strfsong(tmp, BUFSIZE, options.xterm_title_format, song);
104 else
105 g_strlcpy(tmp, PACKAGE " version " VERSION, BUFSIZE);
107 if (strncmp(title, tmp, BUFSIZE)) {
108 g_strlcpy(title, tmp, BUFSIZE);
109 set_xterm_title("%s", title);
110 }
111 }
113 static void
114 exit_and_cleanup(void)
115 {
116 screen_exit();
117 set_xterm_title("");
118 printf("\n");
120 if (mpd) {
121 mpdclient_disconnect(mpd);
122 mpdclient_free(mpd);
123 }
125 g_free(options.host);
126 g_free(options.password);
127 g_free(options.list_format);
128 g_free(options.status_format);
129 g_free(options.scroll_sep);
130 }
132 static void
133 catch_sigint(mpd_unused int sig)
134 {
135 g_main_loop_quit(main_loop);
136 }
139 static void
140 catch_sigcont(mpd_unused int sig)
141 {
142 screen_resize(mpd);
143 }
145 void
146 sigstop(void)
147 {
148 def_prog_mode(); /* save the tty modes */
149 endwin(); /* end curses mode temporarily */
150 kill(0, SIGSTOP); /* issue SIGSTOP */
151 }
153 static guint timer_sigwinch_id;
155 static gboolean
156 timer_sigwinch(mpd_unused gpointer data)
157 {
158 /* the following causes the screen to flicker. There might be
159 better solutions, but I believe it isn't all that
160 important. */
162 endwin();
163 refresh();
164 screen_resize(mpd);
166 return FALSE;
167 }
169 static void
170 catch_sigwinch(mpd_unused int sig)
171 {
172 if (timer_sigwinch_id != 0)
173 g_source_remove(timer_sigwinch_id);
175 timer_sigwinch_id = g_timeout_add(100, timer_sigwinch, NULL);
176 }
178 static gboolean
179 timer_mpd_update(gpointer data);
181 /**
182 * This timer is installed when the connection to the MPD server is
183 * broken. It tries to recover by reconnecting periodically.
184 */
185 static gboolean
186 timer_reconnect(mpd_unused gpointer data)
187 {
188 int ret;
190 if (connected)
191 return FALSE;
193 screen_status_printf(_("Connecting to %s... [Press %s to abort]"),
194 options.host, get_key_names(CMD_QUIT,0) );
195 doupdate();
197 mpdclient_disconnect(mpd);
198 ret = mpdclient_connect(mpd,
199 options.host, options.port,
200 1.5,
201 options.password);
202 if (ret != 0) {
203 /* try again in 5 seconds */
204 g_timeout_add(5000, timer_reconnect, NULL);
205 return FALSE;
206 }
208 /* quit if mpd is pre 0.11.0 - song id not supported by mpd */
209 if (MPD_VERSION_LT(mpd, 0, 11, 0)) {
210 screen_status_printf(_("Error: MPD version %d.%d.%d is to old (0.11.0 needed).\n"),
211 mpd->connection->version[0],
212 mpd->connection->version[1],
213 mpd->connection->version[2]);
214 mpdclient_disconnect(mpd);
215 doupdate();
217 /* try again after 30 seconds */
218 g_timeout_add(30000, timer_reconnect, NULL);
219 return FALSE;
220 }
222 screen_status_printf(_("Connected to %s!"), options.host);
223 doupdate();
225 connected = TRUE;
227 /* update immediately */
228 g_timeout_add(1, timer_mpd_update, GINT_TO_POINTER(FALSE));
230 reconnect_source_id = 0;
231 return FALSE;
233 }
235 static gboolean
236 timer_mpd_update(gpointer data)
237 {
238 if (connected)
239 mpdclient_update(mpd);
240 else if (reconnect_source_id == 0)
241 reconnect_source_id = g_timeout_add(1000, timer_reconnect,
242 NULL);
244 if (options.enable_xterm_title)
245 update_xterm_title();
247 screen_update(mpd);
249 return GPOINTER_TO_INT(data);
250 }
252 /**
253 * This idle timer is invoked when the user hasn't typed a key for
254 * 500ms. It is used for delayed seeking.
255 */
256 static gboolean
257 timer_idle(mpd_unused gpointer data)
258 {
259 screen_idle(mpd);
260 return TRUE;
261 }
263 static gboolean
264 keyboard_event(mpd_unused GIOChannel *source,
265 mpd_unused GIOCondition condition, mpd_unused gpointer data)
266 {
267 command_t cmd;
269 /* remove the idle timeout; add it later with fresh interval */
270 g_source_remove(idle_source_id);
272 if ((cmd=get_keyboard_command()) != CMD_NONE) {
273 if (cmd == CMD_QUIT) {
274 g_main_loop_quit(main_loop);
275 return FALSE;
276 }
278 screen_cmd(mpd, cmd);
280 if (cmd == CMD_VOLUME_UP || cmd == CMD_VOLUME_DOWN) {
281 /* make sure we dont update the volume yet */
282 g_source_remove(update_source_id);
283 update_source_id = g_timeout_add(update_interval,
284 timer_mpd_update,
285 GINT_TO_POINTER(TRUE));
286 }
287 }
289 screen_update(mpd);
291 idle_source_id = g_timeout_add(idle_interval, timer_idle, NULL);
292 return TRUE;
293 }
295 /**
296 * Check the configured key bindings for errors, and display a status
297 * message every 10 seconds.
298 */
299 static gboolean
300 timer_check_key_bindings(mpd_unused gpointer data)
301 {
302 char buf[256];
303 gboolean key_error;
305 key_error = check_key_bindings(NULL, buf, sizeof(buf));
306 if (!key_error)
307 /* no error: disable this timer for the rest of this
308 process */
309 return FALSE;
311 screen_status_printf("%s", buf);
312 doupdate();
313 return TRUE;
314 }
316 int
317 main(int argc, const char *argv[])
318 {
319 struct sigaction act;
320 #ifdef HAVE_LOCALE_H
321 const char *charset = NULL;
322 #endif
323 GIOChannel *keyboard_channel;
325 #ifdef HAVE_LOCALE_H
326 /* time and date formatting */
327 setlocale(LC_TIME,"");
328 /* care about sorting order etc */
329 setlocale(LC_COLLATE,"");
330 /* charset */
331 setlocale(LC_CTYPE,"");
332 /* initialize charset conversions */
333 charset = charset_init();
335 /* initialize i18n support */
336 #ifdef ENABLE_NLS
337 setlocale(LC_MESSAGES, "");
338 bindtextdomain(GETTEXT_PACKAGE, LOCALE_DIR);
339 bind_textdomain_codeset(GETTEXT_PACKAGE, charset);
340 textdomain(GETTEXT_PACKAGE);
341 #endif
342 #endif
344 /* initialize options */
345 options_init();
347 /* parse command line options - 1 pass get configuration files */
348 options_parse(argc, argv);
350 /* read configuration */
351 read_configuration();
353 /* check key bindings */
354 check_key_bindings(NULL, NULL, 0);
356 /* parse command line options - 2 pass */
357 options_parse(argc, argv);
359 /* setup signal behavior - SIGINT */
360 sigemptyset(&act.sa_mask);
361 act.sa_flags = 0;
362 act.sa_handler = catch_sigint;
363 if (sigaction(SIGINT, &act, NULL) < 0) {
364 perror("signal");
365 exit(EXIT_FAILURE);
366 }
368 /* setup signal behavior - SIGTERM */
370 act.sa_handler = catch_sigint;
371 if (sigaction(SIGTERM, &act, NULL) < 0) {
372 perror("sigaction()");
373 exit(EXIT_FAILURE);
374 }
376 /* setup signal behavior - SIGCONT */
378 act.sa_handler = catch_sigcont;
379 if (sigaction(SIGCONT, &act, NULL) < 0) {
380 perror("sigaction(SIGCONT)");
381 exit(EXIT_FAILURE);
382 }
384 /* setup signal behaviour - SIGHUP*/
386 act.sa_handler = catch_sigint;
387 if (sigaction(SIGHUP, &act, NULL) < 0) {
388 perror("sigaction(SIGHUP)");
389 exit(EXIT_FAILURE);
390 }
392 /* setup SIGWINCH */
394 act.sa_flags = SA_RESTART;
395 act.sa_handler = catch_sigwinch;
396 if (sigaction(SIGWINCH, &act, NULL) < 0) {
397 perror("sigaction(SIGWINCH)");
398 exit(EXIT_FAILURE);
399 }
401 /* ignore SIGPIPE */
403 act.sa_handler = SIG_IGN;
404 if (sigaction(SIGPIPE, &act, NULL) < 0) {
405 perror("sigaction(SIGPIPE)");
406 exit(EXIT_FAILURE);
407 }
409 ncu_init();
411 #ifdef ENABLE_LYRICS_SCREEN
412 lyrics_init();
413 #endif
415 /* create mpdclient instance */
416 mpd = mpdclient_new();
417 mpdclient_install_error_callback(mpd, error_callback);
419 /* initialize curses */
420 screen_init(mpd);
422 /* the main loop */
423 main_loop = g_main_loop_new(NULL, FALSE);
425 /* watch out for keyboard input */
426 keyboard_channel = g_io_channel_unix_new(STDIN_FILENO);
427 g_io_add_watch(keyboard_channel, G_IO_IN, keyboard_event, NULL);
429 /* attempt to connect */
430 reconnect_source_id = g_timeout_add(1, timer_reconnect, NULL);
432 update_source_id = g_timeout_add(update_interval,
433 timer_mpd_update,
434 GINT_TO_POINTER(TRUE));
435 g_timeout_add(10000, timer_check_key_bindings, NULL);
436 idle_source_id = g_timeout_add(idle_interval, timer_idle, NULL);
438 screen_paint(mpd);
440 g_main_loop_run(main_loop);
442 /* cleanup */
444 g_main_loop_unref(main_loop);
445 g_io_channel_unref(keyboard_channel);
447 exit_and_cleanup();
448 ncu_deinit();
450 return 0;
451 }