# Pastebin 1oiH3TZr
 std::string session_id = test_mode_ ? "id0" : glib::gchar_to_string(g_getenv("XDG_SESSION_ID"));

    if (!session_id.empty())
    {
      CallLogindMethod("GetSession", g_variant_new("(s)", session_id), [this, session_id] (GVariant* variant, glib::Error const& err) {
        std::string session_path;

        if (!err && variant)
          session_path = glib::Variant(variant).GetString();

        if (session_path.empty())
          session_path = "/org/freedesktop/login1/session/" + session_id;

        SetupLogin1Proxy(session_path);
      });
    }
    else
    {
      auto proxy = std::make_shared<glib::DBusProxy>("org.freedesktop.login1",
                                                     "/org/freedesktop/login1/user/self",
                                                     "org.freedesktop.login1.User",
                                                     G_BUS_TYPE_SYSTEM);

      proxy->GetProperty("Display", [this, proxy] (GVariant *variant) {
        if (!variant || g_variant_n_children(variant) < 2)
          return;

        glib::Variant tmp(g_variant_get_child_value(variant, 1), glib::StealRef());
        SetupLogin1Proxy(tmp.GetString());
      });
    }