[glib] Fixes GB#635187: Always unbox GVariant parameter received via dbus for an action

[Matthias Clasen <matthiasc src gnome org>]

commit 98bfc8afdaabffe4b63215727a580a139b7f07db
Author: Aleksander Morgado <aleksander lanedo com>
Date:   Thu Nov 18 18:00:57 2010 +0100

    Fixes GB#635187: Always unbox GVariant parameter received via dbus for an action

 gio/gapplicationimpl-dbus.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gio/gapplicationimpl-dbus.c b/gio/gapplicationimpl-dbus.c
index 1aaa3b8..c9f4306 100644
--- a/gio/gapplicationimpl-dbus.c
+++ b/gio/gapplicationimpl-dbus.c
@@ -354,17 +354,21 @@ g_application_impl_actions_method_call (GDBusConnection       *connection,
       GVariant *platform_data;
       GVariantIter *param;
       GVariant *parameter;
+      GVariant *unboxed_parameter;
 
       g_variant_get (parameters, "(&sav a{sv})",
                      &action_name, &param, &platform_data);
       parameter = g_variant_iter_next_value (param);
+      unboxed_parameter = parameter ? g_variant_get_variant (parameter) : NULL;
       g_variant_iter_free (param);
 
       class->before_emit (impl->app, platform_data);
-      g_action_group_activate_action (action_group, action_name, parameter);
+      g_action_group_activate_action (action_group, action_name, unboxed_parameter);
       class->after_emit (impl->app, platform_data);
       g_variant_unref (platform_data);
 
+      if (unboxed_parameter)
+        g_variant_unref (unboxed_parameter);
       if (parameter)
         g_variant_unref (parameter);