[orca] Treat childless editable combobox inputs as a text field

[Joanmarie Diggs <joanied src gnome org>]

commit e1f36978222b2ab097a035b0c8e96ff9e91cd509
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Mon Oct 28 17:56:56 2019 -0400

    Treat childless editable combobox inputs as a text field

 src/orca/scripts/web/script_utilities.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index 60a36e0fd..23a1ee894 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -704,9 +704,25 @@ class Utilities(script_utilities.Utilities):
         return rv
 
     def isTextArea(self, obj):
+        if not self.inDocumentContent(obj):
+            return super().isTextArea(obj)
+
         if self.isLink(obj):
             return False
 
+        try:
+            role = obj.getRole()
+            state = obj.getState()
+        except:
+            msg = "WEB: Exception getting role and state for %s" % obj
+            debug.println(debug.LEVEL_INFO, msg, True)
+            return False
+
+        if role == pyatspi.ROLE_COMBO_BOX \
+           and state.contains(pyatspi.STATE_EDITABLE) \
+           and not obj.childCount:
+            return True
+
         return super().isTextArea(obj)
 
     def isReadOnlyTextArea(self, obj):