src/music.c

   1 /* logjam - a GTK client for LiveJournal.
   2  * Copyright (C) 2000-2003 Evan Martin <evan@livejournal.com>
   3  *
   4  * vim: tabstop=4 shiftwidth=4 noexpandtab :
   5  */
   6
   7 #include "gtk-all.h"
   8
   9 #include "conf.h"
  10 #include "music.h"
  11
  12 const CommandList music_commands[] = {
  13   { N_("None"), NULL },
  14   { "Music Player Daemon", "sh -c \"mpc | grep -v '^volume: .* repeat: .* random: .*'\"" },
  15   { "Rhythmbox", "rhythmbox --print-playing" },
  16   { "XMMS / Beep", "logjam-xmms-client" },
  17   { "amaroK", "dcop amarok player nowPlaying" },
  18   { NULL, NULL }
  19 };
  20
  21 MusicSource
  22 music_current_source(void) {
  23   int i;
  24
  25   if (!conf.music_command)
  26     return MUSIC_SOURCE_NONE;
  27
  28   for (i = 0; i < MUSIC_SOURCE_COUNT; i++) {
  29     if (music_commands[i].label && music_commands[i].command &&
  30         (strcmp(music_commands[i].command, conf.music_command) == 0))
  31       return i;
  32   }
  33   return MUSIC_SOURCE_CUSTOM;
  34 }
  35
  36 GQuark
  37 music_error_quark(void) {
  38   static GQuark quark = 0;
  39   if (quark == 0)
  40     quark = g_quark_from_static_string("music-error-quark");
  41   return quark;
  42 }
  43
  44 static gboolean
  45 music_command_can_detect(GError **err) {
  46   if (!conf.music_command || !conf.music_command[0]) {
  47     g_set_error(err, MUSIC_ERROR, MUSIC_COMMAND_LINE_ERROR, "%s",
  48         _("No music command line is set."));
  49     return FALSE;
  50   }
  51   return TRUE;
  52 }
  53
  54 static char*
  55 music_command_detect(const char *command, GError **err) {
  56   gchar *std_out, *std_err, *p, *cnv;
  57   gint exit_status;
  58
  59   if (!g_spawn_command_line_sync(command,
  60       &std_out, &std_err, &exit_status, err))
  61     return NULL;
  62
  63   if (exit_status != 0) {
  64     g_set_error(err, MUSIC_ERROR, MUSIC_COMMAND_ERROR, "%s", std_err);
  65     g_free(std_err);
  66     return NULL;
  67   }
  68   g_free(std_err);
  69
  70   /* we take the first line of this output. */
  71   for (p = std_out; *p; p++) {
  72     if (*p == '\n') {
  73       *p = 0;
  74       break;
  75     }
  76   }
  77   if (p == std_out) {
  78     g_set_error(err, MUSIC_ERROR, MUSIC_COMMAND_ERROR, "%s",
  79         _("Command produced no output."));
  80     g_free(std_out);
  81     return NULL;
  82   }
  83   /* Check if result is correct UTF-8 */
  84   if (g_utf8_validate(std_out, -1, NULL))
  85     return std_out;
  86   /* Try converting from the current locale to UTF-8 */
  87   cnv = g_locale_to_utf8(std_out, -1, NULL, NULL, err);
  88   g_free(std_out);
  89   return cnv;
  90 }
  91
  92 gboolean
  93 music_can_detect(GError **err) {
  94   return music_command_can_detect(err);
  95 }
  96
  97 char*
  98 music_detect(GError **err) {
  99   if (conf.music_command)
 100     return music_command_detect(conf.music_command, err);
 101   return NULL;
 102 }