[orca] Don't change locusOfFocus to ancestor when selection changes

[Joanmarie Diggs <joanied src gnome org>]

commit 9aa4156193d5524f407bc9a718cc66f495dcdbbf
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Thu Feb 18 19:42:25 2016 -0500

    Don't change locusOfFocus to ancestor when selection changes

 src/orca/scripts/default.py |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/scripts/default.py b/src/orca/scripts/default.py
index a42d11a..cf52a92 100644
--- a/src/orca/scripts/default.py
+++ b/src/orca/scripts/default.py
@@ -2385,6 +2385,10 @@ class Script(script.Script):
 
         selectedChildren = self.utilities.selectedChildren(obj)
         for child in selectedChildren:
+            if pyatspi.findAncestor(orca_state.locusOfFocus, lambda x: x == child):
+                msg = "DEFAULT: Child %s is ancestor of locusOfFocus" % child
+                debug.println(debug.LEVEL_INFO, msg, True)
+                return
             if not self.utilities.isLayoutOnly(child):
                 orca.setLocusOfFocus(event, child)
                 break