[totem] screenshot: Hide menu items when unavailable

[Bastien Nocera <hadess src gnome org>]

commit bd01c10587912f6a7abbb38f4ee18aafca507d15
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Jan 8 17:03:09 2014 +0100

    screenshot: Hide menu items when unavailable
    
    https://bugzilla.gnome.org/show_bug.cgi?id=721797

 src/plugins/screenshot/totem-screenshot-plugin.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/src/plugins/screenshot/totem-screenshot-plugin.c 
b/src/plugins/screenshot/totem-screenshot-plugin.c
index 657e0b7..a862d7b 100644
--- a/src/plugins/screenshot/totem-screenshot-plugin.c
+++ b/src/plugins/screenshot/totem-screenshot-plugin.c
@@ -338,8 +338,15 @@ impl_activate (PeasActivatable *plugin)
        menu = totem_object_get_menu_section (priv->totem, "screenshot-placeholder");
        item = g_menu_item_new (_("Take _Screenshot"), "app.take-screenshot");
        g_menu_item_set_attribute (item, "accel", "s", "<Primary><Alt>s");
+       g_menu_item_set_attribute_value (item, "hidden-when",
+                                        g_variant_new_string ("action-disabled"));
        g_menu_append_item (G_MENU (menu), item);
-       g_menu_append (G_MENU (menu), _("Create Screenshot _Gallery..."), "app.take-gallery");
+       g_object_unref (item);
+       item = g_menu_item_new (_("Create Screenshot _Gallery..."), "app.take-gallery");
+       g_menu_item_set_attribute_value (item, "hidden-when",
+                                        g_variant_new_string ("action-disabled"));
+       g_menu_append_item (G_MENU (menu), item);
+       g_object_unref (item);
 
        /* Set up a GSettings watch for lockdown keys */
        priv->settings = g_settings_new ("org.gnome.desktop.lockdown");