[orca] Try to handle error from mate-notification-daemon during window:create

[Joanmarie Diggs <joanied src gnome org>]

commit df7f57a48a625c403149a4cba24b793a15889846
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Mon Jan 17 14:44:34 2022 +0100

    Try to handle error from mate-notification-daemon during window:create
    
    The notification-daemon script was using pyatspi's findAllDescendants()
    utility rather than Orca's own which is more efficient and also handles
    errors that pyatspi's utility fails to handle.

 src/orca/scripts/apps/notification-daemon/script.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/orca/scripts/apps/notification-daemon/script.py 
b/src/orca/scripts/apps/notification-daemon/script.py
index 8f5bff876..8ea364d24 100644
--- a/src/orca/scripts/apps/notification-daemon/script.py
+++ b/src/orca/scripts/apps/notification-daemon/script.py
@@ -44,7 +44,7 @@ class Script(default.Script):
         """Callback for window:create accessibility events."""
 
         hasRole = lambda x: x and x.getRole() == pyatspi.ROLE_LABEL
-        allLabels = pyatspi.findAllDescendants(event.source, hasRole)
+        allLabels = self.utilities.findAllDescendants(event.source, hasRole)
         texts = [self.utilities.displayedText(acc) for acc in allLabels]
         text = '%s %s' % (messages.NOTIFICATION, ' '.join(texts))