[orca] Sanity check windows which claim to be active

[Joanmarie Diggs <joanied src gnome org>]

commit ae046dc2f7a3fe344006e1240c6be359830abf64
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Feb 7 15:00:24 2017 -0500

    Sanity check windows which claim to be active
    
    mate-panel is why we cannot have nice things

 src/orca/scripts/default.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/scripts/default.py b/src/orca/scripts/default.py
index 5893d2c..c07e274 100644
--- a/src/orca/scripts/default.py
+++ b/src/orca/scripts/default.py
@@ -2703,6 +2703,9 @@ class Script(script.Script):
         - event: the Event
         """
 
+        if not self.utilities.canBeActiveWindow(event.source):
+            return
+
         if self.utilities.isSameObject(event.source, orca_state.activeWindow):
             msg = "DEFAULT: Event is for active window."
             debug.println(debug.LEVEL_INFO, msg, True)