[orca] Attend to object:state-changed:expanded for push buttons

[Joanmarie Diggs <joanied src gnome org>]

commit cbfd2d71359506fea709899f9497f7066c692239
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Thu Mar 8 07:45:30 2012 -0500

    Attend to object:state-changed:expanded for push buttons

 src/orca/scripts/default.py |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/scripts/default.py b/src/orca/scripts/default.py
index 538ab87..7fa1332 100644
--- a/src/orca/scripts/default.py
+++ b/src/orca/scripts/default.py
@@ -5976,6 +5976,7 @@ state_change_notifiers[pyatspi.ROLE_CHECK_BOX]       = ("checked",
 state_change_notifiers[pyatspi.ROLE_PANEL]           = ("showing", None)
 state_change_notifiers[pyatspi.ROLE_LABEL]           = ("showing", None)
 state_change_notifiers[pyatspi.ROLE_NOTIFICATION]    = ("showing", None)
+state_change_notifiers[pyatspi.ROLE_PUSH_BUTTON]     = ("expanded", None)
 state_change_notifiers[pyatspi.ROLE_RADIO_BUTTON]    = ("checked", None)
 state_change_notifiers[pyatspi.ROLE_TOGGLE_BUTTON]   = ("checked",
                                                         "pressed",