Code

Update copyright notices
[ncmpc.git] / src / main.c
index 49c813a7a49d83523b3b5012a14aee3b46136fca..bc2a8c73dc30eb4193cc913556abb40ff658ece0 100644 (file)
@@ -1,5 +1,6 @@
-/*
- * (c) 2004 by Kalle Wallin <kaw@linux.se>
+/* ncmpc (Ncurses MPD Client)
+ * (c) 2004-2010 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
  * 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 "config.h"
 #include "ncmpc.h"
 #include "mpdclient.h"
+#include "gidle.h"
 #include "charset.h"
 #include "options.h"
-#include "conf.h"
 #include "command.h"
 #include "ncu.h"
 #include "screen.h"
 #include "screen_utils.h"
+#include "screen_message.h"
 #include "strfsong.h"
 #include "i18n.h"
-#include "gcc.h"
+#include "player_command.h"
+
+#ifndef NCMPC_MINI
+#include "conf.h"
+#endif
 
 #ifdef ENABLE_LYRICS_SCREEN
 #include "lyrics.h"
 #include "lirc.h"
 #endif
 
+#include <mpd/client.h>
+
 #include <stdlib.h>
 #include <unistd.h>
 #include <signal.h>
 #include <string.h>
 
-/* time between mpd updates [s] */
+#ifdef ENABLE_LOCALE
+#include <locale.h>
+#endif
+
+/* time between mpd updates [ms] */
 static const guint update_interval = 500;
 
 #define BUFSIZE 1024
 
-static const guint idle_interval = 500;
-
-static mpdclient_t *mpd = NULL;
-static gboolean connected = FALSE;
+static struct mpdclient *mpd = NULL;
 static GMainLoop *main_loop;
-static guint reconnect_source_id, idle_source_id, update_source_id;
+static guint reconnect_source_id, update_source_id;
 
-static const gchar *
-error_msg(const gchar *msg)
-{
-       gchar *p;
-
-       if ((p = strchr(msg, '}')) == NULL)
-               return msg;
-
-       while (p && *p && (*p=='}' || *p==' '))
-               p++;
-
-       return p;
-}
-
-static void
-error_callback(mpd_unused mpdclient_t *c, gint error, const gchar *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;
-       }
-}
+#ifndef NCMPC_MINI
+static guint check_key_bindings_source_id;
+#endif
 
+#ifndef NCMPC_MINI
 static void
 update_xterm_title(void)
 {
        static char title[BUFSIZE];
        char tmp[BUFSIZE];
-       mpd_Status *status = NULL;
-       mpd_Song *song = NULL;
+       struct mpd_status *status = NULL;
+       const struct mpd_song *song = NULL;
 
        if (mpd) {
                status = mpd->status;
@@ -103,7 +83,7 @@ update_xterm_title(void)
        }
 
        if (options.xterm_title_format && status && song &&
-           IS_PLAYING(status->state))
+           mpd_status_get_state(status) == MPD_STATE_PLAY)
                strfsong(tmp, BUFSIZE, options.xterm_title_format, song);
        else
                g_strlcpy(tmp, PACKAGE " version " VERSION, BUFSIZE);
@@ -113,35 +93,32 @@ update_xterm_title(void)
                set_xterm_title("%s", title);
        }
 }
+#endif
 
 static void
 exit_and_cleanup(void)
 {
        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);
-       g_free(options.scroll_sep);
 }
 
 static void
-catch_sigint(mpd_unused int sig)
+catch_sigint(G_GNUC_UNUSED int sig)
 {
        g_main_loop_quit(main_loop);
 }
 
 
 static void
-catch_sigcont(mpd_unused int sig)
+catch_sigcont(G_GNUC_UNUSED int sig)
 {
        screen_resize(mpd);
 }
@@ -149,15 +126,15 @@ catch_sigcont(mpd_unused int sig)
 void
 sigstop(void)
 {
-  def_prog_mode();  /* save the tty modes */
-  endwin();         /* end curses mode temporarily */
-  kill(0, SIGSTOP); /* issue SIGSTOP */
+       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)
+timer_sigwinch(G_GNUC_UNUSED gpointer data)
 {
        /* the following causes the screen to flicker.  There might be
           better solutions, but I believe it isn't all that
@@ -171,7 +148,7 @@ timer_sigwinch(mpd_unused gpointer data)
 }
 
 static void
-catch_sigwinch(mpd_unused int sig)
+catch_sigwinch(G_GNUC_UNUSED int sig)
 {
        if (timer_sigwinch_id != 0)
                g_source_remove(timer_sigwinch_id);
@@ -179,183 +156,330 @@ catch_sigwinch(mpd_unused int sig)
        timer_sigwinch_id = g_timeout_add(100, timer_sigwinch, NULL);
 }
 
+static void
+idle_callback(enum mpd_error error,
+             G_GNUC_UNUSED enum mpd_server_error server_error,
+             const char *message, enum mpd_idle events,
+             G_GNUC_UNUSED void *ctx);
+
 static gboolean
 timer_mpd_update(gpointer data);
 
+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
+disable_update_timer(void)
+{
+       if (update_source_id == 0)
+               return;
+
+       g_source_remove(update_source_id);
+       update_source_id = 0;
+}
+
+static bool
+should_enable_update_timer(void)
+{
+       return (mpdclient_is_connected(mpd) &&
+               (mpd->source == NULL || /* "idle" not supported */
+                (mpd->status != NULL &&
+                 mpd_status_get_state(mpd->status) == MPD_STATE_PLAY)))
+#ifndef NCMPC_MINI
+               || options.display_time
+#endif
+               ;
+}
+
+static void
+auto_update_timer(void)
+{
+       if (should_enable_update_timer())
+               enable_update_timer();
+       else
+               disable_update_timer();
+}
+
+static void
+check_reconnect(void);
+
+static void
+do_mpd_update(void)
+{
+       if (mpdclient_is_connected(mpd) &&
+           (mpd->source == NULL || mpd->events != 0 ||
+            (mpd->status != NULL &&
+             mpd_status_get_state(mpd->status) == MPD_STATE_PLAY)))
+               mpdclient_update(mpd);
+
+#ifndef NCMPC_MINI
+       if (options.enable_xterm_title)
+               update_xterm_title();
+#endif
+
+       screen_update(mpd);
+       mpd->events = 0;
+
+       mpdclient_put_connection(mpd);
+       check_reconnect();
+}
+
 /**
  * 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)
+timer_reconnect(G_GNUC_UNUSED gpointer data)
 {
-       int ret;
+       bool success;
+       struct mpd_connection *connection;
 
-       if (connected)
-               return FALSE;
+       assert(!mpdclient_is_connected(mpd));
+
+       reconnect_source_id = 0;
 
        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) {
+       success = mpdclient_connect(mpd,
+                                   options.host, options.port,
+                                   1.5,
+                                   options.password);
+       if (!success) {
                /* try again in 5 seconds */
-               g_timeout_add(5000, timer_reconnect, NULL);
+               reconnect_source_id = g_timeout_add(5000,
+                                                   timer_reconnect, NULL);
                return FALSE;
        }
 
+       connection = mpdclient_get_connection(mpd);
+
+#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]);
+       if (mpd_connection_cmp_server_version(connection, 0, 12, 0) < 0) {
+               const unsigned *version =
+                       mpd_connection_get_server_version(connection);
+               screen_status_printf(_("Error: MPD version %d.%d.%d is to old (%s needed)"),
+                                    version[0], version[1], version[2],
+                                    "0.12.0");
                mpdclient_disconnect(mpd);
                doupdate();
 
                /* try again after 30 seconds */
-               g_timeout_add(30000, timer_reconnect, NULL);
+               reconnect_source_id = g_timeout_add(30000,
+                                                   timer_reconnect, NULL);
                return FALSE;
        }
+#endif
 
-       screen_status_printf(_("Connected to %s!"), options.host);
-       doupdate();
+       if (mpd_connection_cmp_server_version(connection,
+                                             0, 14, 0) >= 0)
+               mpd->source = mpd_glib_new(connection,
+                                          idle_callback, mpd);
 
-       connected = TRUE;
+       screen_status_printf(_("Connected to %s"),
+                            options.host != NULL
+                            ? options.host : "localhost");
+       doupdate();
 
        /* update immediately */
-       g_timeout_add(1, timer_mpd_update, GINT_TO_POINTER(FALSE));
+       mpd->events = MPD_IDLE_DATABASE|MPD_IDLE_STORED_PLAYLIST|
+               MPD_IDLE_QUEUE|MPD_IDLE_PLAYER|MPD_IDLE_MIXER|MPD_IDLE_OUTPUT|
+               MPD_IDLE_OPTIONS|MPD_IDLE_UPDATE;
+
+       do_mpd_update();
+
+       auto_update_timer();
 
-       reconnect_source_id = 0;
        return FALSE;
+}
 
+static void
+check_reconnect(void)
+{
+       if (!mpdclient_is_connected(mpd) && reconnect_source_id == 0)
+               /* reconnect when the connection is lost */
+               reconnect_source_id = g_timeout_add(1000, timer_reconnect,
+                                                   NULL);
 }
 
-static gboolean
-timer_mpd_update(gpointer data)
+/**
+ * This function is called by the gidle.c library when MPD sends us an
+ * idle event (or when the connectiond dies).
+ */
+static void
+idle_callback(enum mpd_error error, enum mpd_server_error server_error,
+             const char *message, enum mpd_idle events,
+             void *ctx)
 {
-       if (connected)
-               mpdclient_update(mpd);
-       else if (reconnect_source_id == 0)
+       struct mpdclient *c = ctx;
+       struct mpd_connection *connection;
+
+       c->idle = false;
+
+       connection = mpdclient_get_connection(c);
+       assert(connection != NULL);
+
+       if (error != MPD_ERROR_SUCCESS) {
+               char *allocated;
+
+               if (error == MPD_ERROR_SERVER &&
+                   server_error == MPD_SERVER_ERROR_UNKNOWN_CMD) {
+                       /* the "idle" command is not supported - fall
+                          back to timer based polling */
+                       mpd_glib_free(c->source);
+                       c->source = NULL;
+                       auto_update_timer();
+                       return;
+               }
+
+               if (error == MPD_ERROR_SERVER)
+                       message = allocated = utf8_to_locale(message);
+               else
+                       allocated = NULL;
+               screen_status_message(message);
+               g_free(allocated);
+               screen_bell();
+               doupdate();
+
+               mpdclient_disconnect(c);
+               screen_update(mpd);
                reconnect_source_id = g_timeout_add(1000, timer_reconnect,
                                                    NULL);
+               return;
+       }
 
+       c->events |= events;
+       mpdclient_update(c);
+
+#ifndef NCMPC_MINI
        if (options.enable_xterm_title)
                update_xterm_title();
+#endif
 
        screen_update(mpd);
+       c->events = 0;
 
-       return GPOINTER_TO_INT(data);
+       mpdclient_put_connection(c);
+       check_reconnect();
+       auto_update_timer();
 }
 
-/**
- * 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)
+timer_mpd_update(G_GNUC_UNUSED gpointer data)
 {
-       screen_idle(mpd);
-       return TRUE;
+       do_mpd_update();
+
+       if (should_enable_update_timer())
+               return true;
+       else {
+               update_source_id = 0;
+               return false;
+       }
 }
 
-static gboolean
-keyboard_event(mpd_unused GIOChannel *source,
-              mpd_unused GIOCondition condition, mpd_unused gpointer data)
+void begin_input_event(void)
 {
-       command_t cmd;
-
-       /* remove the idle timeout; add it later with fresh interval */
-       g_source_remove(idle_source_id);
+}
 
-       if ((cmd=get_keyboard_command()) != CMD_NONE) {
-               if (cmd == CMD_QUIT) {
-                       g_main_loop_quit(main_loop);
-                       return FALSE;
-               }
+void end_input_event(void)
+{
+       screen_update(mpd);
+       mpd->events = 0;
 
-               screen_cmd(mpd, cmd);
+       mpdclient_put_connection(mpd);
+       check_reconnect();
+       auto_update_timer();
+}
 
-               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));
-               }
+int do_input_event(command_t cmd)
+{
+       if (cmd == CMD_QUIT) {
+               g_main_loop_quit(main_loop);
+               return -1;
        }
 
-       screen_update(mpd);
+       screen_cmd(mpd, cmd);
 
-       idle_source_id = g_timeout_add(idle_interval, timer_idle, NULL);
-       return TRUE;
+       if (cmd == CMD_VOLUME_UP || cmd == CMD_VOLUME_DOWN)
+               /* make sure we don't update the volume yet */
+               disable_update_timer();
+
+       return 0;
 }
 
-#ifdef ENABLE_LIRC
 static gboolean
-lirc_event(mpd_unused GIOChannel *source,
-          mpd_unused GIOCondition condition, mpd_unused gpointer data)
+keyboard_event(G_GNUC_UNUSED GIOChannel *source,
+              G_GNUC_UNUSED GIOCondition condition,
+              G_GNUC_UNUSED gpointer data)
 {
        command_t cmd;
 
-       /* remove the idle timeout; add it later with fresh interval */
-       g_source_remove(idle_source_id);
+       begin_input_event();
 
-       if ((cmd = ncmpc_lirc_get_command()) != CMD_NONE) {
-               if (cmd == CMD_QUIT) {
-                       g_main_loop_quit(main_loop);
+       if ((cmd=get_keyboard_command()) != CMD_NONE)
+               if (do_input_event(cmd) != 0)
                        return FALSE;
-               }
-
-               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));
-               }
-       }
-
-       screen_update(mpd);
 
-       idle_source_id = g_timeout_add(idle_interval, timer_idle, NULL);
+       end_input_event();
        return TRUE;
 }
-#endif
 
+#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)
+timer_check_key_bindings(G_GNUC_UNUSED gpointer data)
 {
        char buf[256];
+#ifdef ENABLE_KEYDEF_SCREEN
+       char comment[64];
+#endif
        gboolean key_error;
 
        key_error = check_key_bindings(NULL, buf, sizeof(buf));
-       if (!key_error)
+       if (!key_error) {
                /* 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 */
+       g_snprintf(comment, sizeof(comment), _("press %s for the key editor"),
+                  get_key_names(CMD_SCREEN_KEYDEF, 0));
+       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[])
 {
        struct sigaction act;
-#ifdef HAVE_LOCALE_H
+#ifdef ENABLE_LOCALE
        const char *charset = NULL;
 #endif
        GIOChannel *keyboard_channel;
@@ -364,7 +488,7 @@ main(int argc, const char *argv[])
        GIOChannel *lirc_channel = NULL;
 #endif
 
-#ifdef HAVE_LOCALE_H
+#ifdef ENABLE_LOCALE
        /* time and date formatting */
        setlocale(LC_TIME,"");
        /* care about sorting order etc */
@@ -375,12 +499,15 @@ main(int argc, const char *argv[])
        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);
-       textdomain(GETTEXT_PACKAGE);
 #endif
+       textdomain(GETTEXT_PACKAGE);
 #endif
 
        /* initialize options */
@@ -389,11 +516,13 @@ main(int argc, const char *argv[])
        /* parse command line options - 1 pass get configuration files */
        options_parse(argc, argv);
 
+#ifndef NCMPC_MINI
        /* read configuration */
        read_configuration();
 
        /* check key bindings */
        check_key_bindings(NULL, NULL, 0);
+#endif
 
        /* parse command line options - 2 pass */
        options_parse(argc, argv);
@@ -456,7 +585,6 @@ main(int argc, const char *argv[])
 
        /* create mpdclient instance */
        mpd = mpdclient_new();
-       mpdclient_install_error_callback(mpd, error_callback);
 
        /* initialize curses */
        screen_init(mpd);
@@ -480,11 +608,11 @@ main(int argc, const char *argv[])
        /* 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));
-       g_timeout_add(10000, timer_check_key_bindings, NULL);
-       idle_source_id = g_timeout_add(idle_interval, timer_idle, NULL);
+       auto_update_timer();
+
+#ifndef NCMPC_MINI
+       check_key_bindings_source_id = g_timeout_add(10000, timer_check_key_bindings, NULL);
+#endif
 
        screen_paint(mpd);
 
@@ -492,6 +620,18 @@ main(int argc, const char *argv[])
 
        /* 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
+
        g_main_loop_unref(main_loop);
        g_io_channel_unref(keyboard_channel);
 
@@ -502,7 +642,13 @@ main(int argc, const char *argv[])
 #endif
 
        exit_and_cleanup();
+
+#ifdef ENABLE_LYRICS_SCREEN
+       lyrics_deinit();
+#endif
+
        ncu_deinit();
+       options_deinit();
 
        return 0;
 }