Code

screen_interface: add method mouse(), replacing CMD_MOUSE_EVENT
[ncmpc.git] / src / main.c
1 /* ncmpc (Ncurses MPD Client)
2  * (c) 2004-2017 The Music Player Daemon Project
3  * Project homepage: http://musicpd.org
4  *
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.
9  *
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.
14  *
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 "callbacks.h"
24 #include "charset.h"
25 #include "options.h"
26 #include "command.h"
27 #include "ncu.h"
28 #include "screen.h"
29 #include "screen_status.h"
30 #include "xterm_title.h"
31 #include "strfsong.h"
32 #include "i18n.h"
33 #include "player_command.h"
34 #include "keyboard.h"
35 #include "lirc.h"
36 #include "signals.h"
38 #ifndef NCMPC_MINI
39 #include "conf.h"
40 #endif
42 #ifdef ENABLE_LYRICS_SCREEN
43 #include "lyrics.h"
44 #endif
46 #include <mpd/client.h>
48 #include <stdlib.h>
49 #include <unistd.h>
50 #include <fcntl.h>
51 #include <signal.h>
52 #include <string.h>
54 #ifdef ENABLE_LOCALE
55 #include <locale.h>
56 #endif
58 /* time between mpd updates [ms] */
59 static const guint update_interval = 500;
61 #define BUFSIZE 1024
63 static struct mpdclient *mpd = NULL;
64 static GMainLoop *main_loop;
65 static guint reconnect_source_id, update_source_id;
67 #ifndef NCMPC_MINI
68 static guint check_key_bindings_source_id;
69 #endif
71 #ifndef NCMPC_MINI
72 static void
73 update_xterm_title(void)
74 {
75         const struct mpd_song *song = mpd->song;
77         char tmp[BUFSIZE];
78         const char *new_title = NULL;
79         if (options.xterm_title_format && mpd->playing && song)
80                 new_title = strfsong(tmp, BUFSIZE, options.xterm_title_format, song) > 0
81                         ? tmp
82                         : NULL;
84         if (new_title == NULL)
85                 new_title = PACKAGE " version " VERSION;
87         static char title[BUFSIZE];
88         if (strncmp(title, new_title, BUFSIZE)) {
89                 g_strlcpy(title, new_title, BUFSIZE);
90                 set_xterm_title(title);
91         }
92 }
93 #endif
95 static gboolean
96 timer_mpd_update(gpointer data);
98 static void
99 enable_update_timer(void)
101         if (update_source_id != 0)
102                 return;
104         update_source_id = g_timeout_add(update_interval,
105                                          timer_mpd_update, NULL);
108 static void
109 disable_update_timer(void)
111         if (update_source_id == 0)
112                 return;
114         g_source_remove(update_source_id);
115         update_source_id = 0;
118 static bool
119 should_enable_update_timer(void)
121         return mpd->playing;
124 static void
125 auto_update_timer(void)
127         if (should_enable_update_timer())
128                 enable_update_timer();
129         else
130                 disable_update_timer();
133 static void
134 do_mpd_update(void)
136         if (mpdclient_is_connected(mpd) &&
137             (mpd->events != 0 || mpd->playing))
138                 mpdclient_update(mpd);
140 #ifndef NCMPC_MINI
141         if (options.enable_xterm_title)
142                 update_xterm_title();
143 #endif
145         screen_update(mpd);
146         mpd->events = 0;
149 /**
150  * This timer is installed when the connection to the MPD server is
151  * broken.  It tries to recover by reconnecting periodically.
152  */
153 static gboolean
154 timer_reconnect(gcc_unused gpointer data)
156         assert(mpdclient_is_dead(mpd));
158         reconnect_source_id = 0;
160         char *name = mpdclient_settings_name(mpd);
161         screen_status_printf(_("Connecting to %s...  [Press %s to abort]"),
162                              name, get_key_names(CMD_QUIT, false));
163         g_free(name);
164         doupdate();
166         mpdclient_connect(mpd);
168         return FALSE;
171 void
172 mpdclient_connected_callback(void)
174         assert(reconnect_source_id == 0);
176 #ifndef NCMPC_MINI
177         /* quit if mpd is pre 0.14 - song id not supported by mpd */
178         struct mpd_connection *connection = mpdclient_get_connection(mpd);
179         if (mpd_connection_cmp_server_version(connection, 0, 16, 0) < 0) {
180                 const unsigned *version =
181                         mpd_connection_get_server_version(connection);
182                 screen_status_printf(_("Error: MPD version %d.%d.%d is too old (%s needed)"),
183                                      version[0], version[1], version[2],
184                                      "0.16.0");
185                 mpdclient_disconnect(mpd);
186                 doupdate();
188                 /* try again after 30 seconds */
189                 reconnect_source_id =
190                         g_timeout_add_seconds(30, timer_reconnect, NULL);
191                 return;
192         }
193 #endif
195         screen_status_clear_message();
196         doupdate();
198         /* update immediately */
199         mpd->events = MPD_IDLE_ALL;
201         do_mpd_update();
203         auto_update_timer();
206 void
207 mpdclient_failed_callback(void)
209         assert(reconnect_source_id == 0);
211         /* try again in 5 seconds */
212         reconnect_source_id = g_timeout_add_seconds(5, timer_reconnect, NULL);
215 void
216 mpdclient_lost_callback(void)
218         assert(reconnect_source_id == 0);
220         screen_update(mpd);
222         reconnect_source_id = g_timeout_add_seconds(1, timer_reconnect, NULL);
225 /**
226  * This function is called by the gidle.c library when MPD sends us an
227  * idle event (or when the connection dies).
228  */
229 void
230 mpdclient_idle_callback(gcc_unused enum mpd_idle events)
232 #ifndef NCMPC_MINI
233         if (options.enable_xterm_title)
234                 update_xterm_title();
235 #endif
237         screen_update(mpd);
238         auto_update_timer();
241 static gboolean
242 timer_mpd_update(gcc_unused gpointer data)
244         do_mpd_update();
246         if (should_enable_update_timer())
247                 return true;
248         else {
249                 update_source_id = 0;
250                 return false;
251         }
254 void begin_input_event(void)
258 void end_input_event(void)
260         screen_update(mpd);
261         mpd->events = 0;
263         auto_update_timer();
266 bool
267 do_input_event(command_t cmd)
269         if (cmd == CMD_QUIT) {
270                 g_main_loop_quit(main_loop);
271                 return false;
272         }
274         screen_cmd(mpd, cmd);
276         if (cmd == CMD_VOLUME_UP || cmd == CMD_VOLUME_DOWN)
277                 /* make sure we don't update the volume yet */
278                 disable_update_timer();
280         return true;
283 #ifdef HAVE_GETMOUSE
285 void
286 do_mouse_event(int x, int y, mmask_t bstate)
288         screen_mouse(mpd, x, y, bstate);
291 #endif
293 #ifndef NCMPC_MINI
294 /**
295  * Check the configured key bindings for errors, and display a status
296  * message every 10 seconds.
297  */
298 static gboolean
299 timer_check_key_bindings(gcc_unused gpointer data)
301         char buf[256];
303         if (check_key_bindings(NULL, buf, sizeof(buf))) {
304                 /* no error: disable this timer for the rest of this
305                    process */
306                 check_key_bindings_source_id = 0;
307                 return FALSE;
308         }
310 #ifdef ENABLE_KEYDEF_SCREEN
311         g_strchomp(buf);
312         g_strlcat(buf, " (", sizeof(buf));
313         /* to translators: a key was bound twice in the key editor,
314            and this is a hint for the user what to press to correct
315            that */
316         char comment[64];
317         g_snprintf(comment, sizeof(comment), _("press %s for the key editor"),
318                    get_key_names(CMD_SCREEN_KEYDEF, false));
319         g_strlcat(buf, comment, sizeof(buf));
320         g_strlcat(buf, ")", sizeof(buf));
321 #endif
323         screen_status_printf("%s", buf);
325         doupdate();
326         return TRUE;
328 #endif
330 int
331 main(int argc, const char *argv[])
333 #ifdef ENABLE_LOCALE
334 #ifndef ENABLE_NLS
335         gcc_unused
336 #endif
337         const char *charset = NULL;
338         /* time and date formatting */
339         setlocale(LC_TIME,"");
340         /* care about sorting order etc */
341         setlocale(LC_COLLATE,"");
342         /* charset */
343         setlocale(LC_CTYPE,"");
344         /* initialize charset conversions */
345         charset = charset_init();
347         /* initialize i18n support */
348 #endif
350 #ifdef ENABLE_NLS
351         setlocale(LC_MESSAGES, "");
352         bindtextdomain(GETTEXT_PACKAGE, LOCALE_DIR);
353 #ifdef ENABLE_LOCALE
354         bind_textdomain_codeset(GETTEXT_PACKAGE, charset);
355 #endif
356         textdomain(GETTEXT_PACKAGE);
357 #endif
359         /* initialize options */
360         options_init();
362         /* parse command line options - 1 pass get configuration files */
363         options_parse(argc, argv);
365 #ifndef NCMPC_MINI
366         /* read configuration */
367         read_configuration();
369         /* check key bindings */
370         check_key_bindings(NULL, NULL, 0);
371 #endif
373         /* parse command line options - 2 pass */
374         options_parse(argc, argv);
376         ncu_init();
378 #ifdef ENABLE_LYRICS_SCREEN
379         lyrics_init();
380 #endif
382         /* create mpdclient instance */
383         mpd = mpdclient_new(options.host, options.port,
384                             options.timeout_ms,
385                             options.password);
387         /* initialize curses */
388         screen_init(mpd);
390         /* the main loop */
391         main_loop = g_main_loop_new(NULL, FALSE);
393         /* watch out for keyboard input */
394         keyboard_init();
396         /* watch out for lirc input */
397         ncmpc_lirc_init();
399         signals_init(main_loop, mpd);
401         /* attempt to connect */
402         reconnect_source_id = g_idle_add(timer_reconnect, NULL);
404         auto_update_timer();
406 #ifndef NCMPC_MINI
407         check_key_bindings_source_id =
408                 g_timeout_add_seconds(10, timer_check_key_bindings, NULL);
409 #endif
411         screen_paint(mpd, true);
413         g_main_loop_run(main_loop);
414         g_main_loop_unref(main_loop);
416         /* cleanup */
418         cancel_seek_timer();
420         disable_update_timer();
422         if (reconnect_source_id != 0)
423                 g_source_remove(reconnect_source_id);
425 #ifndef NCMPC_MINI
426         if (check_key_bindings_source_id != 0)
427                 g_source_remove(check_key_bindings_source_id);
428 #endif
430         signals_deinit();
431         ncmpc_lirc_deinit();
433         screen_exit();
434 #ifndef NCMPC_MINI
435         set_xterm_title("");
436 #endif
437         printf("\n");
439         mpdclient_free(mpd);
441 #ifdef ENABLE_LYRICS_SCREEN
442         lyrics_deinit();
443 #endif
445         ncu_deinit();
446         options_deinit();
448         return 0;