[orca] Web: Use posinset and setsize attributes for menus, even in browser gui

[Joanmarie Diggs <joanied src gnome org>]

commit 7bd61205b8b26411d54ec55e1361e99d827e5613
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Feb 2 15:27:18 2021 +0100

    Web: Use posinset and setsize attributes for menus, even in browser gui

 src/orca/scripts/web/script_utilities.py | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index e96104359..b3c2bea9e 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -561,6 +561,15 @@ class Utilities(script_utilities.Utilities):
 
         return rv
 
+    def getPositionAndSetSize(self, obj, **args):
+        posinset = self.getPositionInSet(obj)
+        setsize = self.getSetSize(obj)
+        if posinset is not None and setsize is not None:
+            # ARIA posinset is 1-based
+            return posinset - 1, setsize
+
+        return super().getPositionAndSetSize(obj, **args)
+
     def getPositionInSet(self, obj):
         attrs = self.objectAttributes(obj, False)
         position = attrs.get('posinset')