[pyatspi2: 1/2] Add screen-reader:mode-changed signal

[Mike Gorse <mgorse src gnome org>]

commit 645c87873335dc9caac9eb8a822aff0f349de6bb
Author: Samuel Thibault <samuel thibault ens-lyon org>
Date:   Thu Jun 11 01:07:46 2020 +0200

    Add screen-reader:mode-changed signal

 pyatspi/constants.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/pyatspi/constants.py b/pyatspi/constants.py
index d250e02..e9d3add 100644
--- a/pyatspi/constants.py
+++ b/pyatspi/constants.py
@@ -123,7 +123,8 @@ EVENT_TREE = {
     'mouse:button:3p',
     'mouse:button:3r'],
   'screen-reader' :
-    ['screen-reader:region-changed'],
+    ['screen-reader:region-changed',
+     'screen-reader:mode-changed'],
   'window' :
     ['window:minimize',
     'window:maximize',