[orca] Force browse mode switch in web apps when child document claims focus

[Joanmarie Diggs <joanied src gnome org>]

commit d421db5ae6327daa845b4253eb90975e09ea35fb
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri May 22 12:42:07 2020 -0400

    Force browse mode switch in web apps when child document claims focus
    
    If a web app gives focus directly to a child document, there's a
    reasonable chance that the child document is content to be read. An
    example is switching between the VSCode editor and a page containing
    documentation or information. Therefore, if the document itself claims
    focus and lacks attributes which suggest it should be treated as a focus
    mode widget, switch to browse mode.

 src/orca/scripts/web/script_utilities.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index 9761c1f13..16501f18a 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -1933,9 +1933,13 @@ class Utilities(script_utilities.Utilities):
         if not self.isWebAppDescendant(obj):
             return False
 
-        if obj.getRole() == pyatspi.ROLE_TOOL_TIP:
+        role = obj.getRole()
+        if role == pyatspi.ROLE_TOOL_TIP:
             return obj.getState().contains(pyatspi.STATE_FOCUSED)
 
+        if role == pyatspi.ROLE_DOCUMENT_WEB:
+            return not self.isFocusModeWidget(obj)
+
         return False
 
     def isFocusModeWidget(self, obj):