engine: delay D-Bus name request after factory creation

BUG=none

Review URL: https://codereview.appspot.com/6441157

engine/main.vala

@@ -34,16 +34,6 @@ public int main(string[] args) {
         return 1;
     }
 
-    uint flags = 
-        IBus.BusNameFlag.REPLACE_EXISTING |
-        IBus.BusNameFlag.ALLOW_REPLACEMENT;
-    uint retval = bus.request_name("org.freedesktop.IBus.Simple", flags);
-
-    if (retval == 0) {
-        warning("Registry bus name org.freedesktop.IBus.Simple failed!");
-        return 1;
-    }
-
     bus.disconnected.connect((bus) => {
         debug("bus disconnected");
         IBus.quit();
@@ -61,6 +51,16 @@ public int main(string[] args) {
         return engine;
     });
 
+    uint flags = 
+        IBus.BusNameFlag.REPLACE_EXISTING |
+        IBus.BusNameFlag.ALLOW_REPLACEMENT;
+    uint retval = bus.request_name("org.freedesktop.IBus.Simple", flags);
+
+    if (retval == 0) {
+        warning("Registry bus name org.freedesktop.IBus.Simple failed!");
+        return 1;
+    }
+
     IBus.main();
 
     return 0;

src/tests/ibus-bus.c

@@ -621,6 +621,26 @@ test_bus_new_async (void)
     ibus_main ();
 }
 
+static void
+test_global_engine (void)
+{
+    IBusEngineDesc *engine_desc;
+    const gchar *engine_name;
+
+    if (!ibus_bus_get_use_global_engine (bus))
+        return;
+
+    engine_name = "xkb:us::eng";
+    ibus_bus_set_global_engine (bus, engine_name);
+    engine_desc = ibus_bus_get_global_engine (bus);
+    g_assert_cmpstr (ibus_engine_desc_get_name (engine_desc), ==, engine_name);
+
+    engine_name = "xkb:jp::jpn";
+    ibus_bus_set_global_engine (bus, engine_name);
+    engine_desc = ibus_bus_get_global_engine (bus);
+    g_assert_cmpstr (ibus_engine_desc_get_name (engine_desc), ==, engine_name);
+}
+
 gint
 main (gint    argc,
       gchar **argv)
@@ -646,6 +666,7 @@ main (gint    argc,
                      test_create_input_context_async);
     g_test_add_func ("/ibus/bus-new-async/get-engines-by-names", test_get_engines_by_names);
     g_test_add_func ("/ibus/bus-new-async/async-apis", test_async_apis);
+    g_test_add_func ("/ibus/global-engine", test_global_engine);
 
     result = g_test_run ();
     g_object_unref (bus);