[orca/orca-gnome3: 44/87] Fix for bug #645256 - Unhandled LookupError when an application is quit

[Alejandro Leiva <aleiva src gnome org>]

commit 67224fb677c98712eaa4c6e3a391c8628afb2a01
Author: Joanmarie Diggs <joanmarie diggs gmail com>
Date:   Sat Mar 19 15:44:05 2011 -0400

    Fix for bug #645256 - Unhandled LookupError when an application is quit

 src/orca/event_manager.py |   16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)
---
diff --git a/src/orca/event_manager.py b/src/orca/event_manager.py
index 272a8de..bd3d04c 100644
--- a/src/orca/event_manager.py
+++ b/src/orca/event_manager.py
@@ -432,10 +432,18 @@ class EventManager:
         eType = event.type
 
         if eType.startswith("object:children-changed:remove"):
-            if event.source == self.registry.getDesktop(0):
-                _scriptManager.reclaimScripts()
-                if settings.debugMemoryUsage:
-                    orca.cleanupGarbage()
+            try:
+                if event.source == self.registry.getDesktop(0):
+                    _scriptManager.reclaimScripts()
+                    if settings.debugMemoryUsage:
+                        orca.cleanupGarbage()
+                    return
+            except LookupError:
+                # If we got this error here, we'll get it again when we
+                # attempt to get the state, catch it, and clean up.
+                pass
+            except:
+                debug.printException(debug.LEVEL_WARNING)
                 return
 
         # Clean up any flat review context so that Orca does not get