[orca] Don't tree insertions as autotext events if the source isn't showing

[Joanmarie Diggs <joanied src gnome org>]

commit deb5909b7559cc3a4452b830823372e1b1217e9f
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Sat Feb 20 13:57:39 2016 -0500

    Don't tree insertions as autotext events if the source isn't showing

 src/orca/script_utilities.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index 24d52d2..08fade2 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -2831,6 +2831,8 @@ class Utilities:
             state = event.source.getState()
             if not state.contains(pyatspi.STATE_EDITABLE):
                 return False
+            if not state.contains(pyatspi.STATE_SHOWING):
+                return False
 
             lastKey, mods = self.lastKeyAndModifiers()
             if lastKey == "Tab" and event.any_data != "\t":