[at-spi2-atk] Defer application registration via an idle callback

[Mike Gorse <mgorse src gnome org>]

commit f603c8e4d9f00a9c046fbf4e02458308e9720d22
Author: Mike Gorse <mgorse alum wpi edu>
Date:   Wed Aug 14 16:36:32 2019 -0500

    Defer application registration via an idle callback
    
    A python application, for instance, may initialize gtk but not enter the
    main loop. It would, thus, register with the AT-SPI registry but not be
    responsive to queries. Putting registration into an idle callback ensures
    that, if a program never enters the main loop, then it won't register.
    
    Fixes https://gitlab.gnome.org/GNOME/at-spi2-core/issues/16

 atk-adaptor/bridge.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/atk-adaptor/bridge.c b/atk-adaptor/bridge.c
index 3363b4e..c8ca861 100644
--- a/atk-adaptor/bridge.c
+++ b/atk-adaptor/bridge.c
@@ -404,8 +404,9 @@ register_reply (DBusPendingCall *pending, void *user_data)
 }
 
 static gboolean
-register_application (SpiBridge * app)
+register_application (gpointer data)
 {
+  SpiBridge * app = data;
   DBusMessage *message;
   DBusMessageIter iter;
   DBusPendingCall *pending;
@@ -441,7 +442,7 @@ register_application (SpiBridge * app)
   if (message)
     dbus_message_unref (message);
 
-  return TRUE;
+  return FALSE;
 }
 
 /*---------------------------------------------------------------------------*/
@@ -1102,7 +1103,7 @@ atk_bridge_adaptor_init (gint * argc, gchar ** argv[])
 
   /* Register this app by sending a signal out to AT-SPI registry daemon */
   if (!atspi_no_register && (!root || !ATK_IS_PLUG (root)))
-    register_application (spi_global_app_data);
+    g_idle_add (register_application, spi_global_app_data);
   else
     get_registered_event_listeners (spi_global_app_data);