X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Fmain.c;h=a5a803f04104163562c514ffa88e9ab7281e2d44;hb=2b171daac0ab6ac161514aeaa521fdd51e3f09c6;hp=6a6ba34f36bf4ff5c3b9ca8adfe3e8c414a10cfc;hpb=76a8fab4adc293982f355609b89dde88d5f355e0;p=ncmpc.git

diff --git a/src/main.c b/src/main.c
index 6a6ba34..a5a803f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,7 +1,6 @@
-/* 
- * $Id$
- *
- * (c) 2004 by Kalle Wallin <kaw@linux.se>
+/* ncmpc (Ncurses MPD Client)
+ * (c) 2004-2017 The Music Player Daemon Project
+ * Project homepage: http://musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -12,176 +11,352 @@
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <signal.h>
-#include <string.h>
-#include <ncurses.h>
-#include <glib.h>
-
 #include "config.h"
 #include "ncmpc.h"
 #include "mpdclient.h"
-#include "support.h"
+#include "callbacks.h"
+#include "charset.h"
 #include "options.h"
-#include "conf.h"
 #include "command.h"
-#include "src_lyrics.h"
+#include "ncu.h"
 #include "screen.h"
-#include "screen_utils.h"
+#include "screen_status.h"
+#include "xterm_title.h"
 #include "strfsong.h"
+#include "i18n.h"
+#include "player_command.h"
+#include "keyboard.h"
+#include "lirc.h"
+#include "signals.h"
+
+#ifndef NCMPC_MINI
+#include "conf.h"
+#endif
+
+#ifdef ENABLE_LYRICS_SCREEN
+#include "lyrics.h"
+#endif
+
+#include <mpd/client.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <string.h>
+
+#ifdef ENABLE_LOCALE
+#include <locale.h>
+#endif
+
+/* time between mpd updates [ms] */
+static const guint update_interval = 500;
 
 #define BUFSIZE 1024
 
-static mpdclient_t   *mpd = NULL;
-static gboolean connected = FALSE;
-static GTimer      *timer = NULL;
+static struct mpdclient *mpd = NULL;
+static GMainLoop *main_loop;
+static guint reconnect_source_id, update_source_id;
 
-static const gchar *
-error_msg(const gchar *msg)
+#ifndef NCMPC_MINI
+static guint check_key_bindings_source_id;
+#endif
+
+#ifndef NCMPC_MINI
+static void
+update_xterm_title(void)
 {
-  gchar *p;
+	const struct mpd_song *song = mpd->song;
+
+	char tmp[BUFSIZE];
+	const char *new_title = NULL;
+	if (options.xterm_title_format && mpd->playing && song)
+		new_title = strfsong(tmp, BUFSIZE, options.xterm_title_format, song) > 0
+			? tmp
+			: NULL;
+
+	if (new_title == NULL)
+		new_title = PACKAGE " version " VERSION;
+
+	static char title[BUFSIZE];
+	if (strncmp(title, new_title, BUFSIZE)) {
+		g_strlcpy(title, new_title, BUFSIZE);
+		set_xterm_title(title);
+	}
+}
+#endif
 
-  if( (p=strchr(msg, '}' )) == NULL )
-    return msg;
-  while( p && *p && (*p=='}' || *p==' ') )
-    p++;
+static gboolean
+timer_mpd_update(gpointer data);
 
-  return p;
+static void
+enable_update_timer(void)
+{
+	if (update_source_id != 0)
+		return;
+
+	update_source_id = g_timeout_add(update_interval,
+					 timer_mpd_update, NULL);
 }
 
 static void
-error_callback(mpdclient_t *c, gint error, const gchar *msg)
+disable_update_timer(void)
 {
-	gint code = GET_ACK_ERROR_CODE(error);
-
-	error = error & 0xFF;
-	D("Error [%d:%d]> \"%s\"\n", error, code, msg);
-	switch (error) {
-	case MPD_ERROR_CONNPORT:
-	case MPD_ERROR_NORESPONSE:
-		break;
-	case MPD_ERROR_ACK:
-		screen_status_printf("%s", error_msg(msg));
-		screen_bell();
-		break;
-	default:
-		screen_status_printf("%s", msg);
-		screen_bell();
-		doupdate();
-		connected = FALSE;
-	}
+	if (update_source_id == 0)
+		return;
+
+	g_source_remove(update_source_id);
+	update_source_id = 0;
 }
 
-static void
-update_xterm_title(void)
+static bool
+should_enable_update_timer(void)
 {
-  static char title[BUFSIZE];
-  char tmp[BUFSIZE];
-  mpd_Status *status = NULL;
-  mpd_Song *song = NULL;
-
-  if( mpd )
-    {
-      status = mpd->status;
-      song = mpd->song;
-    }
-
-  if(options.xterm_title_format && status && song && IS_PLAYING(status->state))
-    {
-      strfsong(tmp, BUFSIZE, options.xterm_title_format, song);
-    }
-  else
-    g_strlcpy(tmp, PACKAGE " version " VERSION, BUFSIZE);
-
-  if( strncmp(title,tmp,BUFSIZE) )
-    {
-      g_strlcpy(title, tmp, BUFSIZE);
-      set_xterm_title("%s", title);
-    }
+	return mpd->playing;
 }
 
 static void
-exit_and_cleanup(void)
+auto_update_timer(void)
 {
-  screen_exit();
-  set_xterm_title("");
-  printf("\n");
-  if( mpd )
-    {
-      mpdclient_disconnect(mpd);
-      mpd = mpdclient_free(mpd);
-    }
-  g_free(options.host);
-  g_free(options.password);
-  g_free(options.list_format);
-  g_free(options.status_format);
-  g_free(options.scroll_sep);
-  if( timer )
-    g_timer_destroy(timer);
+	if (should_enable_update_timer())
+		enable_update_timer();
+	else
+		disable_update_timer();
 }
 
 static void
-catch_sigint( int sig )
+do_mpd_update(void)
+{
+	if (mpdclient_is_connected(mpd) &&
+	    (mpd->events != 0 || mpd->playing))
+		mpdclient_update(mpd);
+
+#ifndef NCMPC_MINI
+	if (options.enable_xterm_title)
+		update_xterm_title();
+#endif
+
+	screen_update(mpd);
+	mpd->events = 0;
+}
+
+static char *
+settings_name(const struct mpd_settings *settings)
 {
-	printf("\n%s\n", _("Exiting..."));
-	exit(EXIT_SUCCESS);
+	const char *host = mpd_settings_get_host(settings);
+	if (host == NULL)
+		host = _("unknown");
+
+	if (host[0] == '/')
+		return g_strdup(host);
+
+	unsigned port = mpd_settings_get_port(settings);
+	if (port == 0 || port == 6600)
+		return g_strdup(host);
+
+	return g_strdup_printf("%s:%u", host, port);
 }
 
+static char *
+default_settings_name(void)
+{
+	struct mpd_settings *settings =
+		mpd_settings_new(options.host, options.port, 0,
+				 NULL, options.password);
+	if (settings == NULL)
+		return g_strdup(_("unknown"));
 
-static void
-catch_sigcont( int sig )
+	char *name = settings_name(settings);
+	mpd_settings_free(settings);
+
+	return name;
+}
+
+/**
+ * This timer is installed when the connection to the MPD server is
+ * broken.  It tries to recover by reconnecting periodically.
+ */
+static gboolean
+timer_reconnect(gcc_unused gpointer data)
 {
-	D("catch_sigcont()\n");
-#ifdef ENABLE_RAW_MODE
-	reset_prog_mode(); /* restore tty modes */
-	refresh();
+	assert(mpdclient_is_dead(mpd));
+
+	reconnect_source_id = 0;
+
+	char *name = default_settings_name();
+	screen_status_printf(_("Connecting to %s...  [Press %s to abort]"),
+			     name, get_key_names(CMD_QUIT, false));
+	g_free(name);
+	doupdate();
+
+	mpdclient_connect(mpd);
+
+	return FALSE;
+}
+
+void
+mpdclient_connected_callback(void)
+{
+	assert(reconnect_source_id == 0);
+
+#ifndef NCMPC_MINI
+	/* quit if mpd is pre 0.14 - song id not supported by mpd */
+	struct mpd_connection *connection = mpdclient_get_connection(mpd);
+	if (mpd_connection_cmp_server_version(connection, 0, 16, 0) < 0) {
+		const unsigned *version =
+			mpd_connection_get_server_version(connection);
+		screen_status_printf(_("Error: MPD version %d.%d.%d is too old (%s needed)"),
+				     version[0], version[1], version[2],
+				     "0.16.0");
+		mpdclient_disconnect(mpd);
+		doupdate();
+
+		/* try again after 30 seconds */
+		reconnect_source_id =
+			g_timeout_add_seconds(30, timer_reconnect, NULL);
+		return;
+	}
 #endif
-	screen_resize();
+
+	screen_status_clear_message();
+	doupdate();
+
+	/* update immediately */
+	mpd->events = MPD_IDLE_ALL;
+
+	do_mpd_update();
+
+	auto_update_timer();
 }
 
 void
-sigstop(void)
+mpdclient_failed_callback(void)
 {
-  def_prog_mode();  /* save the tty modes */
-  endwin();         /* end curses mode temporarily */
-  kill(0, SIGSTOP); /* issue SIGSTOP */
+	assert(reconnect_source_id == 0);
+
+	/* try again in 5 seconds */
+	reconnect_source_id = g_timeout_add_seconds(5, timer_reconnect, NULL);
 }
 
-#ifndef NDEBUG
-void 
-D(const char *format, ...)
+void
+mpdclient_lost_callback(void)
 {
-  if( options.debug )
-    {
-      gchar *msg;
-      va_list ap;
-  
-      va_start(ap,format);
-      msg = g_strdup_vprintf(format,ap);
-      va_end(ap);
-      fprintf(stderr, "%s", msg);
-      g_free(msg);
-    }
+	assert(reconnect_source_id == 0);
+
+	screen_update(mpd);
+
+	reconnect_source_id = g_timeout_add_seconds(1, timer_reconnect, NULL);
+}
+
+/**
+ * This function is called by the gidle.c library when MPD sends us an
+ * idle event (or when the connection dies).
+ */
+void
+mpdclient_idle_callback(gcc_unused enum mpd_idle events)
+{
+#ifndef NCMPC_MINI
+	if (options.enable_xterm_title)
+		update_xterm_title();
+#endif
+
+	screen_update(mpd);
+	auto_update_timer();
+}
+
+static gboolean
+timer_mpd_update(gcc_unused gpointer data)
+{
+	do_mpd_update();
+
+	if (should_enable_update_timer())
+		return true;
+	else {
+		update_source_id = 0;
+		return false;
+	}
+}
+
+void begin_input_event(void)
+{
+}
+
+void end_input_event(void)
+{
+	screen_update(mpd);
+	mpd->events = 0;
+
+	auto_update_timer();
+}
+
+bool
+do_input_event(command_t cmd)
+{
+	if (cmd == CMD_QUIT) {
+		g_main_loop_quit(main_loop);
+		return false;
+	}
+
+	screen_cmd(mpd, cmd);
+
+	if (cmd == CMD_VOLUME_UP || cmd == CMD_VOLUME_DOWN)
+		/* make sure we don't update the volume yet */
+		disable_update_timer();
+
+	return true;
+}
+
+#ifndef NCMPC_MINI
+/**
+ * Check the configured key bindings for errors, and display a status
+ * message every 10 seconds.
+ */
+static gboolean
+timer_check_key_bindings(gcc_unused gpointer data)
+{
+	char buf[256];
+
+	if (check_key_bindings(NULL, buf, sizeof(buf))) {
+		/* no error: disable this timer for the rest of this
+		   process */
+		check_key_bindings_source_id = 0;
+		return FALSE;
+	}
+
+#ifdef ENABLE_KEYDEF_SCREEN
+	g_strchomp(buf);
+	g_strlcat(buf, " (", sizeof(buf));
+	/* to translators: a key was bound twice in the key editor,
+	   and this is a hint for the user what to press to correct
+	   that */
+	char comment[64];
+	g_snprintf(comment, sizeof(comment), _("press %s for the key editor"),
+		   get_key_names(CMD_SCREEN_KEYDEF, false));
+	g_strlcat(buf, comment, sizeof(buf));
+	g_strlcat(buf, ")", sizeof(buf));
+#endif
+
+	screen_status_printf("%s", buf);
+
+	doupdate();
+	return TRUE;
 }
 #endif
 
 int
 main(int argc, const char *argv[])
 {
-	options_t *options;
-	struct sigaction act;
+#ifdef ENABLE_LOCALE
+#ifndef ENABLE_NLS
+	gcc_unused
+#endif
 	const char *charset = NULL;
-	gboolean key_error;
-
-#ifdef HAVE_LOCALE_H
 	/* time and date formatting */
 	setlocale(LC_TIME,"");
 	/* care about sorting order etc */
@@ -189,171 +364,108 @@ main(int argc, const char *argv[])
 	/* charset */
 	setlocale(LC_CTYPE,"");
 	/* initialize charset conversions */
-	charset_init(g_get_charset(&charset));
-	D("charset: %s\n", charset);
-#endif
+	charset = charset_init();
 
 	/* initialize i18n support */
+#endif
+
 #ifdef ENABLE_NLS
 	setlocale(LC_MESSAGES, "");
 	bindtextdomain(GETTEXT_PACKAGE, LOCALE_DIR);
+#ifdef ENABLE_LOCALE
 	bind_textdomain_codeset(GETTEXT_PACKAGE, charset);
+#endif
 	textdomain(GETTEXT_PACKAGE);
 #endif
 
 	/* initialize options */
-	options = options_init();
+	options_init();
 
 	/* parse command line options - 1 pass get configuration files */
 	options_parse(argc, argv);
 
+#ifndef NCMPC_MINI
 	/* read configuration */
-	read_configuration(options);
+	read_configuration();
 
 	/* check key bindings */
-	key_error = check_key_bindings(NULL, NULL, 0);
+	check_key_bindings(NULL, NULL, 0);
+#endif
 
 	/* parse command line options - 2 pass */
 	options_parse(argc, argv);
 
-	/* setup signal behavior - SIGINT */
-	sigemptyset( &act.sa_mask );
-	act.sa_flags    = 0;
-	act.sa_handler = catch_sigint;
-	if( sigaction(SIGINT, &act, NULL)<0 ) {
-		perror("signal");
-		exit(EXIT_FAILURE);
-	}
-
-	/* setup signal behavior - SIGTERM */
-	sigemptyset( &act.sa_mask );
-	act.sa_flags    = 0;
-	act.sa_handler = catch_sigint;
-	if( sigaction(SIGTERM, &act, NULL)<0 ) {
-		perror("sigaction()");
-		exit(EXIT_FAILURE);
-	}
+	ncu_init();
 
-	/* setup signal behavior - SIGCONT */
-	sigemptyset( &act.sa_mask );
-	act.sa_flags    = 0;
-	act.sa_handler = catch_sigcont;
-	if( sigaction(SIGCONT, &act, NULL)<0 ) {
-		perror("sigaction(SIGCONT)");
-		exit(EXIT_FAILURE);
-	}
-
-	/* setup signal behaviour - SIGHUP*/
-	sigemptyset( &act.sa_mask );
-	act.sa_flags    = 0;
-	act.sa_handler = catch_sigint;
-	if( sigaction(SIGHUP, &act, NULL)<0 ) {
-		perror("sigaction(SIGHUP)");
-		exit(EXIT_FAILURE);
-	}
+#ifdef ENABLE_LYRICS_SCREEN
+	lyrics_init();
+#endif
 
-	/* install exit function */
-	atexit(exit_and_cleanup);
-
-	ncurses_init();
-
-	src_lyr_init ();
-
-	/* connect to our music player daemon */
-	mpd = mpdclient_new();
-
-	if (mpdclient_connect(mpd,
-			      options->host,
-			      options->port,
-			      10.0,
-			      options->password))
-		exit(EXIT_FAILURE);
-
-	/* if no password is used, but the mpd wants one, the connection
-	   might be established but no status information is avaiable */
-	mpdclient_update(mpd);
-	if (!mpd->status)
-		screen_auth(mpd);
-
-	if (!mpd->status)
-		exit(EXIT_FAILURE);
-
-	connected = TRUE;
-	D("Connected to MPD version %d.%d.%d\n",
-	  mpd->connection->version[0],
-	  mpd->connection->version[1],
-	  mpd->connection->version[2]);
-
-	/* quit if mpd is pre 0.11.0 - song id not supported by mpd */
-	if( MPD_VERSION_LT(mpd, 0,11,0) ) {
-		fprintf(stderr,
-			_("Error: MPD version %d.%d.%d is to old (0.11.0 needed).\n"),
-			mpd->connection->version[0],
-			mpd->connection->version[1],
-			mpd->connection->version[2]);
-		exit(EXIT_FAILURE);
-	}
+	/* create mpdclient instance */
+	mpd = mpdclient_new(options.host, options.port,
+			    options.timeout_ms,
+			    options.password);
 
 	/* initialize curses */
 	screen_init(mpd);
-	/* install error callback function */
-	mpdclient_install_error_callback(mpd, error_callback);
-
-	/* initialize timer */
-	timer = g_timer_new();
-
-	connected = TRUE;
-	while (connected || options->reconnect) {
-		static gdouble t = G_MAXDOUBLE;
-
-		if( key_error ) {
-			char buf[BUFSIZE];
-
-			key_error=check_key_bindings(NULL, buf, BUFSIZE);
-			screen_status_printf("%s", buf);
-		}
-
-		if( connected && (t>=MPD_UPDATE_TIME || mpd->need_update) ) {
-			mpdclient_update(mpd);
-			g_timer_start(timer);
-		}
-
-		if( connected ) {
-			command_t cmd;
-
-			screen_update(mpd);
-			if( (cmd=get_keyboard_command()) != CMD_NONE )
-				{
-					screen_cmd(mpd, cmd);
-					if( cmd==CMD_VOLUME_UP || cmd==CMD_VOLUME_DOWN)
-						/* make shure we dont update the volume yet */
-						g_timer_start(timer);
-				}
-			else
-				screen_idle(mpd);
-		} else if (options->reconnect) {
-			screen_status_printf(_("Connecting to %s...  [Press %s to abort]"),
-					     options->host, get_key_names(CMD_QUIT,0) );
-
-			if( get_keyboard_command_with_timeout(MPD_RECONNECT_TIME)==CMD_QUIT)
-				exit(EXIT_SUCCESS);
-
-			if (mpdclient_connect(mpd,
-					      options->host, options->port,
-					      1.5,
-					      options->password) == 0) {
-				screen_status_printf(_("Connected to %s!"), options->host);
-				connected = TRUE;
-			}
-
-			doupdate();
-		}
-
-		if (options->enable_xterm_title)
-			update_xterm_title();
-
-		t = g_timer_elapsed(timer, NULL);
-	}
-	exit(EXIT_FAILURE);
-}
 
+	/* the main loop */
+	main_loop = g_main_loop_new(NULL, FALSE);
+
+	/* watch out for keyboard input */
+	keyboard_init();
+
+	/* watch out for lirc input */
+	ncmpc_lirc_init();
+
+	signals_init(main_loop, mpd);
+
+	/* attempt to connect */
+	reconnect_source_id = g_idle_add(timer_reconnect, NULL);
+
+	auto_update_timer();
+
+#ifndef NCMPC_MINI
+	check_key_bindings_source_id =
+		g_timeout_add_seconds(10, timer_check_key_bindings, NULL);
+#endif
+
+	screen_paint(mpd, true);
+
+	g_main_loop_run(main_loop);
+	g_main_loop_unref(main_loop);
+
+	/* cleanup */
+
+	cancel_seek_timer();
+
+	disable_update_timer();
+
+	if (reconnect_source_id != 0)
+		g_source_remove(reconnect_source_id);
+
+#ifndef NCMPC_MINI
+	if (check_key_bindings_source_id != 0)
+		g_source_remove(check_key_bindings_source_id);
+#endif
+
+	signals_deinit();
+	ncmpc_lirc_deinit();
+
+	screen_exit();
+#ifndef NCMPC_MINI
+	set_xterm_title("");
+#endif
+	printf("\n");
+
+	mpdclient_free(mpd);
+
+#ifdef ENABLE_LYRICS_SCREEN
+	lyrics_deinit();
+#endif
+
+	ncu_deinit();
+	options_deinit();
+
+	return 0;
+}