[orca] Ignore focus: events from canvas objects in non-active window

[Joanmarie Diggs <joanied src gnome org>]

commit a497afdb4533b43faaa0d4fec64c0979c8ae1210
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri Feb 26 09:37:42 2016 -0500

    Ignore focus: events from canvas objects in non-active window

 src/orca/scripts/toolkits/gtk/script.py |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/orca/scripts/toolkits/gtk/script.py b/src/orca/scripts/toolkits/gtk/script.py
index 29326ff..4e92162 100644
--- a/src/orca/scripts/toolkits/gtk/script.py
+++ b/src/orca/scripts/toolkits/gtk/script.py
@@ -167,8 +167,10 @@ class Script(default.Script):
         # Unfiled. When a canvas item gets focus but is not selected, we
         # are only getting a focus event. This happens in Nautilus.
         if role == pyatspi.ROLE_CANVAS:
-            orca.setLocusOfFocus(event, event.source)
-            return
+            topLevelObject = self.utilities.topLevelObject(event.source)
+            if topLevelObject == orca_state.activeWindow:
+                orca.setLocusOfFocus(event, event.source)
+                return
 
         # Unfiled, but yet another case of only getting a focus: event when
         # a widget appears in a parent container and is already focused.