[at-spi2-atk] When switching the main context, move pending register_application call

[Mike Gorse <mgorse src gnome org>]

commit 895abb449fa9c521098e8135defe4882a0595e9e
Author: Mike Gorse <mgorse alum wpi edu>
Date:   Thu Aug 15 11:01:47 2019 -0500

    When switching the main context, move pending register_application call
    
    Commit f603c8 broke java-atk-wrapper, since the default main loop context
    isn't used there.
    
    Fixes https://gitlab.gnome.org/GNOME/at-spi2-core/issues/16

 atk-adaptor/bridge.c | 18 +++++++++++++-----
 atk-adaptor/bridge.h |  3 +++
 atk-adaptor/event.c  |  6 ++++++
 3 files changed, 22 insertions(+), 5 deletions(-)
---
diff --git a/atk-adaptor/bridge.c b/atk-adaptor/bridge.c
index c8ca861..fe09e84 100644
--- a/atk-adaptor/bridge.c
+++ b/atk-adaptor/bridge.c
@@ -403,8 +403,8 @@ register_reply (DBusPendingCall *pending, void *user_data)
     get_registered_event_listeners (spi_global_app_data);
 }
 
-static gboolean
-register_application (gpointer data)
+gboolean
+_atk_bridge_register_application (gpointer data)
 {
   SpiBridge * app = data;
   DBusMessage *message;
@@ -476,6 +476,13 @@ deregister_application (SpiBridge * app)
   DBusMessageIter iter;
   const char *uname;
 
+  if (spi_global_app_data->registration_pending)
+  {
+    g_source_remove (spi_global_app_data->registration_pending);
+    spi_global_app_data->registration_pending = 0;
+    return;
+  }
+
   message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
                                           ATSPI_DBUS_PATH_REGISTRY,
                                           ATSPI_DBUS_INTERFACE_REGISTRY,
@@ -849,7 +856,7 @@ signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data)
             {
               if (registry_lost && !old[0])
                 {
-                  register_application (spi_global_app_data);
+                  _atk_bridge_register_application (spi_global_app_data);
                   registry_lost = FALSE;
                 }
               else if (!new[0])
@@ -1102,8 +1109,9 @@ atk_bridge_adaptor_init (gint * argc, gchar ** argv[])
                               NULL);
 
   /* Register this app by sending a signal out to AT-SPI registry daemon */
-  if (!atspi_no_register && (!root || !ATK_IS_PLUG (root)))
-    g_idle_add (register_application, spi_global_app_data);
+  if (!atspi_no_register && (!root || !ATK_IS_PLUG (root)) &&
+      !spi_global_app_data->registration_pending)
+    spi_global_app_data->registration_pending = spi_idle_add (_atk_bridge_register_application, 
spi_global_app_data);
   else
     get_registered_event_listeners (spi_global_app_data);
 
diff --git a/atk-adaptor/bridge.h b/atk-adaptor/bridge.h
index 64882e4..29518b0 100644
--- a/atk-adaptor/bridge.h
+++ b/atk-adaptor/bridge.h
@@ -73,6 +73,7 @@ gchar *app_bus_addr;
   GList *events;
   gboolean events_initialized;
   GHashTable *property_hash;
+  guint registration_pending;
 };
 
 extern SpiBridge *spi_global_app_data;
@@ -92,6 +93,8 @@ DRoutePropertyFunction _atk_bridge_find_property_func (const char *property,
                                                        GType *type);
 
 GType _atk_bridge_type_from_iface (const char *iface);
+
+gboolean _atk_bridge_register_application (gpointer data);
 G_END_DECLS
 
 #endif /* BRIDGE_H */
diff --git a/atk-adaptor/event.c b/atk-adaptor/event.c
index 7c3c3f9..e9e906f 100644
--- a/atk-adaptor/event.c
+++ b/atk-adaptor/event.c
@@ -72,6 +72,12 @@ switch_main_context (GMainContext *cnx)
   atspi_set_main_context (cnx);
   for (list = spi_global_app_data->direct_connections; list; list = list->next)
     atspi_dbus_connection_setup_with_g_main (list->data, cnx);
+
+  if (spi_global_app_data->registration_pending)
+  {
+    g_source_remove (spi_global_app_data->registration_pending);
+    spi_global_app_data->registration_pending = spi_idle_add (_atk_bridge_register_application, 
spi_global_app_data);
+  }
 }
 
 guint