Add signal handlers to ibus-chewing to listen for config changes.

src/main.c

Index: src/main.c
diff --git a/src/main.c b/src/main.c
index 027d05fe2333279bc8f6022806a47cbd90e3e3e9..5e3349a872d3aebc332f0677b7903ab28261967d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -35,6 +35,7 @@ static IBusFactory *factory = NULL;
 /* options */
 static gboolean ibus = FALSE;
 int ibus_chewing_verbose= 0;
+IBusConfig *iConfig = NULL;
 
 static const GOptionEntry entries[] =
 {
@@ -60,6 +61,9 @@ start_component (void)
 {
     bus = ibus_bus_new ();
     g_signal_connect (bus, "disconnected", G_CALLBACK (ibus_disconnected_cb), NULL);
+    iConfig = ibus_bus_get_config (bus);
+    if (iConfig)
+        g_object_ref_sink (iConfig);
 
     IBusConnection *iConnection=ibus_bus_get_connection (bus);
     factory = ibus_factory_new (iConnection);