Code

po: updated PO template
[ncmpc.git] / src / main.c
index f42a2b01c7f221514181a28b2639a6e6e9c3892e..26ab45896b9f36fc408f0f8a24f44e1c52854c0d 100644 (file)
@@ -1,6 +1,4 @@
-/* 
- * $Id$
- *
+/*
  * (c) 2004 by Kalle Wallin <kaw@linux.se>
  *
  * This program is free software; you can redistribute it and/or modify
  *
  */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <signal.h>
-#include <string.h>
-#include <glib.h>
-
 #include "config.h"
 #include "ncmpc.h"
 #include "mpdclient.h"
-#include "support.h"
+#include "charset.h"
 #include "options.h"
-#include "conf.h"
 #include "command.h"
+#include "ncu.h"
 #include "screen.h"
 #include "screen_utils.h"
+#include "strfsong.h"
+#include "i18n.h"
+#include "gcc.h"
+
+#ifndef NCMPC_MINI
+#include "conf.h"
+#endif
+
+#ifdef ENABLE_LYRICS_SCREEN
+#include "lyrics.h"
+#endif
+
+#ifdef ENABLE_LIRC
+#include "lirc.h"
+#endif
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <string.h>
+
+/* time between mpd updates [s] */
+static const guint update_interval = 500;
 
-#define BUFSIZE 256
+#define BUFSIZE 1024
 
-static mpdclient_t   *mpd = NULL;
+static const guint idle_interval = 500;
+
+static mpdclient_t *mpd = NULL;
 static gboolean connected = FALSE;
-static GTimer      *timer = NULL;
+static GMainLoop *main_loop;
+static guint reconnect_source_id, idle_source_id, update_source_id;
 
-static gchar *
-error_msg(gchar *msg)
+static const gchar *
+error_msg(const gchar *msg)
 {
-  gchar *p;
+       gchar *p;
+
+       if ((p = strchr(msg, '}')) == NULL)
+               return msg;
 
-  if( (p=strchr(msg, '}' )) == NULL )
-    return msg;
-  while( p && *p && (*p=='}' || *p==' ') )
-    p++;
+       do {
+               p++;
+       } while (*p == '}' || * p== ' ');
 
-  return p;
+       return p;
 }
 
 static void
-error_callback(mpdclient_t *c, gint error, gchar *msg)
+error_callback(mpd_unused mpdclient_t *c, gint error, const gchar *_msg)
 {
-  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;
-    }
+       char *msg = utf8_to_locale(_msg);
+
+       error = error & 0xFF;
+       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;
+       }
+
+       g_free(msg);
 }
 
-void
+#ifndef NCMPC_MINI
+static void
+update_xterm_title(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);
+       }
+}
+#endif
+
+static void
 exit_and_cleanup(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);
-  if( timer )
-    g_timer_destroy(timer);
+       screen_exit();
+#ifndef NCMPC_MINI
+       set_xterm_title("");
+#endif
+       printf("\n");
+
+       if (mpd) {
+               mpdclient_disconnect(mpd);
+               mpdclient_free(mpd);
+       }
+
+       g_free(options.host);
+       g_free(options.password);
+       g_free(options.list_format);
+       g_free(options.status_format);
+#ifndef NCMPC_MINI
+       g_free(options.scroll_sep);
+#endif
+}
+
+static void
+catch_sigint(mpd_unused int sig)
+{
+       g_main_loop_quit(main_loop);
+}
+
+
+static void
+catch_sigcont(mpd_unused int sig)
+{
+       screen_resize(mpd);
 }
 
 void
-catch_sigint( int sig )
+sigstop(void)
+{
+  def_prog_mode();  /* save the tty modes */
+  endwin();         /* end curses mode temporarily */
+  kill(0, SIGSTOP); /* issue SIGSTOP */
+}
+
+static guint timer_sigwinch_id;
+
+static gboolean
+timer_sigwinch(mpd_unused gpointer data)
+{
+       /* the following causes the screen to flicker.  There might be
+          better solutions, but I believe it isn't all that
+          important. */
+
+       endwin();
+       refresh();
+       screen_resize(mpd);
+
+       return FALSE;
+}
+
+static void
+catch_sigwinch(mpd_unused int sig)
 {
-  printf("\n%s\n", _("Exiting..."));
-  exit(EXIT_SUCCESS);
+       if (timer_sigwinch_id != 0)
+               g_source_remove(timer_sigwinch_id);
+
+       timer_sigwinch_id = g_timeout_add(100, timer_sigwinch, NULL);
 }
 
-int 
+static gboolean
+timer_mpd_update(gpointer data);
+
+/**
+ * This timer is installed when the connection to the MPD server is
+ * broken.  It tries to recover by reconnecting periodically.
+ */
+static gboolean
+timer_reconnect(mpd_unused gpointer data)
+{
+       int ret;
+
+       if (connected)
+               return FALSE;
+
+       screen_status_printf(_("Connecting to %s...  [Press %s to abort]"),
+                            options.host, get_key_names(CMD_QUIT,0) );
+       doupdate();
+
+       mpdclient_disconnect(mpd);
+       ret = mpdclient_connect(mpd,
+                               options.host, options.port,
+                               1.5,
+                               options.password);
+       if (ret != 0) {
+               /* try again in 5 seconds */
+               g_timeout_add(5000, timer_reconnect, NULL);
+               return FALSE;
+       }
+
+#ifndef NCMPC_MINI
+       /* quit if mpd is pre 0.11.0 - song id not supported by mpd */
+       if (MPD_VERSION_LT(mpd, 0, 11, 0)) {
+               screen_status_printf(_("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]);
+               mpdclient_disconnect(mpd);
+               doupdate();
+
+               /* try again after 30 seconds */
+               g_timeout_add(30000, timer_reconnect, NULL);
+               return FALSE;
+       }
+#endif
+
+       screen_status_printf(_("Connected to %s!"), options.host);
+       doupdate();
+
+       connected = TRUE;
+
+       /* update immediately */
+       g_timeout_add(1, timer_mpd_update, GINT_TO_POINTER(FALSE));
+
+       reconnect_source_id = 0;
+       return FALSE;
+
+}
+
+static gboolean
+timer_mpd_update(gpointer data)
+{
+       if (connected)
+               mpdclient_update(mpd);
+       else if (reconnect_source_id == 0)
+               reconnect_source_id = g_timeout_add(1000, timer_reconnect,
+                                                   NULL);
+
+#ifndef NCMPC_MINI
+       if (options.enable_xterm_title)
+               update_xterm_title();
+#endif
+
+       screen_update(mpd);
+
+       return GPOINTER_TO_INT(data);
+}
+
+/**
+ * This idle timer is invoked when the user hasn't typed a key for
+ * 500ms.  It is used for delayed seeking.
+ */
+static gboolean
+timer_idle(mpd_unused gpointer data)
+{
+       screen_idle(mpd);
+       return TRUE;
+}
+
+void begin_input_event(void)
+{
+       /* remove the idle timeout; add it later with fresh interval */
+       g_source_remove(idle_source_id);
+}
+
+void end_input_event(void)
+{
+       screen_update(mpd);
+
+       idle_source_id = g_timeout_add(idle_interval, timer_idle, NULL);
+}
+
+int do_input_event(command_t cmd)
+{
+       if (cmd == CMD_QUIT) {
+               g_main_loop_quit(main_loop);
+               return -1;
+       }
+
+       screen_cmd(mpd, cmd);
+
+       if (cmd == CMD_VOLUME_UP || cmd == CMD_VOLUME_DOWN) {
+               /* make sure we dont update the volume yet */
+               g_source_remove(update_source_id);
+               update_source_id = g_timeout_add(update_interval,
+                                                timer_mpd_update,
+                                                GINT_TO_POINTER(TRUE));
+       }
+
+       return 0;
+}
+
+static gboolean
+keyboard_event(mpd_unused GIOChannel *source,
+              mpd_unused GIOCondition condition, mpd_unused gpointer data)
+{
+       command_t cmd;
+
+       begin_input_event();
+
+       if ((cmd=get_keyboard_command()) != CMD_NONE)
+               if (do_input_event(cmd) != 0)
+                       return FALSE;
+
+       end_input_event();
+       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(mpd_unused gpointer data)
+{
+       char buf[256];
+       gboolean key_error;
+
+       key_error = check_key_bindings(NULL, buf, sizeof(buf));
+       if (!key_error)
+               /* no error: disable this timer for the rest of this
+                  process */
+               return FALSE;
+
+       screen_status_printf("%s", buf);
+       doupdate();
+       return TRUE;
+}
+#endif
+
+int
 main(int argc, const char *argv[])
 {
-  options_t *options;
-  struct sigaction act;
-  const char *charset = NULL;
-  gboolean key_error;
-
-#ifdef HAVE_LOCALE_H
-  /* time and date formatting */
-  setlocale(LC_TIME,"");
-  /* charset */
-  setlocale(LC_CTYPE,"");
-  /* initialize charset conversions */
-  charset_init(g_get_charset(&charset));
-  D("charset: %s\n", charset);
+       struct sigaction act;
+#if defined(HAVE_LOCALE_H) && !defined(NCMPC_MINI)
+       const char *charset = NULL;
+#endif
+       GIOChannel *keyboard_channel;
+#ifdef ENABLE_LIRC
+       int lirc_socket;
+       GIOChannel *lirc_channel = NULL;
 #endif
 
-  /* initialize i18n support */
+#if defined(HAVE_LOCALE_H) && !defined(NCMPC_MINI)
+       /* time and date formatting */
+       setlocale(LC_TIME,"");
+       /* care about sorting order etc */
+       setlocale(LC_COLLATE,"");
+       /* charset */
+       setlocale(LC_CTYPE,"");
+       /* initialize charset conversions */
+       charset = charset_init();
+
+       /* initialize i18n support */
 #ifdef ENABLE_NLS
-  setlocale(LC_MESSAGES, "");
-  bindtextdomain(GETTEXT_PACKAGE, LOCALE_DIR);
-  bind_textdomain_codeset(GETTEXT_PACKAGE, charset);
-  textdomain(GETTEXT_PACKAGE);
+       setlocale(LC_MESSAGES, "");
+       bindtextdomain(GETTEXT_PACKAGE, LOCALE_DIR);
+       bind_textdomain_codeset(GETTEXT_PACKAGE, charset);
+       textdomain(GETTEXT_PACKAGE);
+#endif
+#endif
+
+       /* initialize options */
+       options_init();
+
+       /* parse command line options - 1 pass get configuration files */
+       options_parse(argc, argv);
+
+       /* read configuration */
+#ifndef NCMPC_MINI
+       read_configuration();
 #endif
 
-  /* initialize options */
-  options = options_init();
-
-  /* parse command line options - 1 pass get configuration files */
-  options_parse(argc, argv);
-  
-  /* read configuration */
-  read_configuration(options);
-
-  /* check key bindings */
-  key_error = check_key_bindings(NULL, 0);
-  
-  /* 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);
-    }
-
-  /* set xterm title */
-  set_xterm_title(PACKAGE " version " VERSION);
-
-  /* install exit function */
-  atexit(exit_and_cleanup);
-
-  /* connect to our music player daemon */
-  mpd = mpdclient_new();
-  if( mpdclient_connect(mpd, 
-                       options->host, 
-                       options->port, 
-                       10.0, 
-                       options->password) )
-    {
-      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);
-    }
-
-  /* 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(buf, BUFSIZE);
-         screen_status_printf("%s", buf);
+       /* check key bindings */
+       check_key_bindings(NULL, NULL, 0);
+
+       /* 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);
        }
 
-      if( connected && (t>=MPD_UPDATE_TIME || mpd->need_update) )
-       {
-         mpdclient_update(mpd);
-         g_timer_start(timer);
+       /* setup signal behavior - SIGTERM */
+
+       act.sa_handler = catch_sigint;
+       if (sigaction(SIGTERM, &act, NULL) < 0) {
+               perror("sigaction()");
+               exit(EXIT_FAILURE);
        }
 
-      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);
+       /* setup signal behavior - SIGCONT */
+
+       act.sa_handler = catch_sigcont;
+       if (sigaction(SIGCONT, &act, NULL) < 0) {
+               perror("sigaction(SIGCONT)");
+               exit(EXIT_FAILURE);
        }
-      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();
+
+       /* setup signal behaviour - SIGHUP*/
+
+       act.sa_handler = catch_sigint;
+       if (sigaction(SIGHUP, &act, NULL) < 0) {
+               perror("sigaction(SIGHUP)");
+               exit(EXIT_FAILURE);
+       }
+
+       /* setup SIGWINCH */
+
+       act.sa_flags = SA_RESTART;
+       act.sa_handler = catch_sigwinch;
+       if (sigaction(SIGWINCH, &act, NULL) < 0) {
+               perror("sigaction(SIGWINCH)");
+               exit(EXIT_FAILURE);
+       }
+
+       /* ignore SIGPIPE */
+
+       act.sa_handler = SIG_IGN;
+       if (sigaction(SIGPIPE, &act, NULL) < 0) {
+               perror("sigaction(SIGPIPE)");
+               exit(EXIT_FAILURE);
+       }
+
+       ncu_init();
+
+#ifdef ENABLE_LYRICS_SCREEN
+       lyrics_init();
+#endif
+
+       /* create mpdclient instance */
+       mpd = mpdclient_new();
+       mpdclient_install_error_callback(mpd, error_callback);
+
+       /* initialize curses */
+       screen_init(mpd);
+
+       /* the main loop */
+       main_loop = g_main_loop_new(NULL, FALSE);
+
+       /* watch out for keyboard input */
+       keyboard_channel = g_io_channel_unix_new(STDIN_FILENO);
+       g_io_add_watch(keyboard_channel, G_IO_IN, keyboard_event, NULL);
+
+#ifdef ENABLE_LIRC
+       /* watch out for lirc input */
+       lirc_socket = ncmpc_lirc_open();
+       if (lirc_socket >= 0) {
+               lirc_channel = g_io_channel_unix_new(lirc_socket);
+               g_io_add_watch(lirc_channel, G_IO_IN, lirc_event, NULL);
        }
+#endif
+
+       /* attempt to connect */
+       reconnect_source_id = g_timeout_add(1, timer_reconnect, NULL);
+
+       update_source_id = g_timeout_add(update_interval,
+                                        timer_mpd_update,
+                                        GINT_TO_POINTER(TRUE));
+#ifndef NCMPC_MINI
+       g_timeout_add(10000, timer_check_key_bindings, NULL);
+#endif
+       idle_source_id = g_timeout_add(idle_interval, timer_idle, NULL);
+
+       screen_paint(mpd);
+
+       g_main_loop_run(main_loop);
+
+       /* cleanup */
+
+       g_main_loop_unref(main_loop);
+       g_io_channel_unref(keyboard_channel);
+
+#ifdef ENABLE_LIRC
+       if (lirc_socket >= 0)
+               g_io_channel_unref(lirc_channel);
+       ncmpc_lirc_close();
+#endif
+
+       exit_and_cleanup();
+       ncu_deinit();
 
-      t = g_timer_elapsed(timer, NULL);
-    }
-  exit(EXIT_FAILURE);
+       return 0;
 }