[tracker/collation-gconf-locale: 6/15] tracker-locale: set locale envvar to the value retrieved from gconf

[Aleksander Morgado <aleksm src gnome org>]

commit 30772877709531c11a3c91dc80c05527e9f79fc9
Author: Aleksander Morgado <aleksander lanedo com>
Date:   Thu Oct 28 12:52:11 2010 +0200

    tracker-locale: set locale envvar to the value retrieved from gconf

 src/libtracker-common/tracker-locale.c |   75 ++++++++++++++++++++++++++------
 1 files changed, 61 insertions(+), 14 deletions(-)
---
diff --git a/src/libtracker-common/tracker-locale.c b/src/libtracker-common/tracker-locale.c
index 5fbd712..3a78789 100644
--- a/src/libtracker-common/tracker-locale.c
+++ b/src/libtracker-common/tracker-locale.c
@@ -44,12 +44,19 @@ static GStaticMutex subscribers_mutex = G_STATIC_MUTEX_INIT;
 #define UNLOCK_LOCALES
 #endif /* HAVE_MAEMO */
 
-
 /* Current locales in use. They will be stored in heap and available throughout
  * the whole program execution, so will be reported as still reachable by Valgrind.
  */
 static gchar *current_locales[TRACKER_LOCALE_LAST];
 
+static gchar *locale_names[TRACKER_LOCALE_LAST] = {
+	"TRACKER_LOCALE_LANGUAGE",
+	"TRACKER_LOCALE_TIME",
+	"TRACKER_LOCALE_COLLATE",
+	"TRACKER_LOCALE_NUMERIC",
+	"TRACKER_LOCALE_MONETARY"
+};
+
 /* Already initialized? */
 static gboolean initialized;
 
@@ -89,6 +96,50 @@ static GSList *subscribers;
  * reachable by Valgrind */
 static GConfClient *client;
 
+
+static void
+tracker_locale_set (TrackerLocaleID  id,
+                    const gchar     *value)
+{
+	if (current_locales[id]) {
+		g_debug ("Locale '%s' was changed from '%s' to '%s'",
+		         locale_names[id],
+		         current_locales[id],
+		         value);
+		g_free (current_locales[id]);
+	} else {
+		g_debug ("Locale '%s' was set to '%s'",
+		         locale_names[id],
+		         value);
+	}
+
+	/* Store the new one */
+	current_locales[id] = g_strdup (value);
+
+	/* And also set the new one in the corresponding envvar */
+	switch (id) {
+	case TRACKER_LOCALE_LANGUAGE:
+		g_setenv ("LANG", value, TRUE);
+		break;
+	case TRACKER_LOCALE_TIME:
+		setlocale (LC_TIME, value);
+		break;
+	case TRACKER_LOCALE_COLLATE:
+		setlocale (LC_COLLATE, value);
+		break;
+	case TRACKER_LOCALE_NUMERIC:
+		setlocale (LC_NUMERIC, value);
+		break;
+	case TRACKER_LOCALE_MONETARY:
+		setlocale (LC_MONETARY, value);
+		break;
+	case TRACKER_LOCALE_LAST:
+		/* Make compiler happy */
+		g_warn_if_reached ();
+		break;
+	}
+}
+
 static void
 tracker_locale_gconf_notify_cb (GConfClient *client,
                                 guint cnxn_id,
@@ -130,13 +181,7 @@ tracker_locale_gconf_notify_cb (GConfClient *client,
 
 	/* Protect the locale change with the lock */
 	LOCK_LOCALES;
-	/* Clean the previous value */
-	g_free (current_locales[i]);
-	/* And set the new one that got just notified */
-	current_locales[i] = g_strdup (gconf_value_get_string (value));
-	g_debug ("Locale '%s' was changed to '%s'",
-	         gconf_locales[i],
-	         current_locales[i]);
+	tracker_locale_set (i, gconf_value_get_string (value));
 	UNLOCK_LOCALES;
 
 	/* Now, if any subscriber, notify the locale change */
@@ -205,7 +250,8 @@ tracker_locale_init (void)
 			                        gconf_locales[i],
 			                        &error);
 			if (!val) {
-				g_warning ("Couldn't get locale '%s' from gconf: '%s'"
+				g_warning ("Couldn't get value for key '%s'"
+				           "from gconf: '%s'"
 				           " Defaulting to environment locale.",
 				           gconf_locales[i],
 				           error ? error->message : "unknown error");
@@ -216,8 +262,8 @@ tracker_locale_init (void)
 				           gconf_locales[i]);
 				gconf_value_free (val);
 			} else {
-				/* dup the string */
-				current_locales[i] = g_strdup (gconf_value_get_string (val));
+				/* Set the new locale */
+				tracker_locale_set (i, gconf_value_get_string (val));
 				gconf_value_free (val);
 			}
 		}
@@ -246,15 +292,16 @@ tracker_locale_init (void)
 				env_locale = setlocale (LC_MONETARY, NULL);
 				break;
 			case TRACKER_LOCALE_LAST:
-				env_locale = NULL;
+				/* Make compiler happy. The for loop avoids
+				 * this from happening. */
 				break;
 			}
 
 			if (!env_locale) {
 				g_warning ("Locale '%d' is not set, defaulting to C locale", i);
-				current_locales[i] = g_strdup ("C");
+				tracker_locale_set (i, "C");
 			} else {
-				current_locales[i] = g_strdup (env_locale);
+				tracker_locale_set (i, env_locale);
 			}
 		}
 	}