[orca] Fix for bug #640377 - Structural navigation sometimes fails to work with WebKitGtk content

[Joanmarie Diggs <joanied src gnome org>]

commit ca276073f3cfdf5b34eb4ea115f0563d1f65660f
Author: Joanmarie Diggs <joanmarie diggs gmail com>
Date:   Mon Jan 24 01:34:11 2011 -0500

    Fix for bug #640377 - Structural navigation sometimes fails to work with WebKitGtk content

 src/orca/structural_navigation.py |   26 +++++---------------------
 1 files changed, 5 insertions(+), 21 deletions(-)
---
diff --git a/src/orca/structural_navigation.py b/src/orca/structural_navigation.py
index cc99609..0c352e6 100644
--- a/src/orca/structural_navigation.py
+++ b/src/orca/structural_navigation.py
@@ -1244,28 +1244,12 @@ class StructuralNavigation:
         interest is contained.
         """
 
-        # This is script-specific and will need to be defined in the
-        # script's custom StructuralNavigation class. But if this
-        # method does nothing, pylint complains.  So... We might as
-        # well take a guess for a generic version to make pylint
-        # happy. :-) In some initial experimentation with OOo, this
-        # method seemed to reliably return the child of the document
-        # view, so it might not be too far off.  It's also being
-        # overridden by Gecko, so one should feel free to modify this
-        # one.
-        #
-        obj = self.getCurrentObject()
-        lastTextObj = obj
-        while obj and obj.getRole() != pyatspi.ROLE_FRAME:
-            try:
-                obj.queryText()
-            except:
-                pass
-            else:
-                lastTextObj = obj
-            obj = obj.parent
+        docRoles = [pyatspi.ROLE_DOCUMENT_FRAME]
+        stopRoles = [pyatspi.ROLE_FRAME, pyatspi.ROLE_SCROLL_PANE]
+        document = self._script.utilities.ancestorWithRole(
+            orca_state.locusOfFocus, docRoles, stopRoles)
 
-        return lastTextObj
+        return document
 
     def _isInDocument(self, obj):
         """Returns True if the accessible object obj is inside of