[orca] Attempt to work around Google Docs editor exposed as ROLE_UNKNOWN by Firefox

[Joanmarie Diggs <joanied src gnome org>]

commit 672d13d984f38d7703fb5e20675124482963a0e7
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Sat Oct 17 01:47:02 2015 -0400

    Attempt to work around Google Docs editor exposed as ROLE_UNKNOWN by Firefox

 src/orca/scripts/web/script.py |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/scripts/web/script.py b/src/orca/scripts/web/script.py
index 023f2c1..fb37ec6 100644
--- a/src/orca/scripts/web/script.py
+++ b/src/orca/scripts/web/script.py
@@ -977,6 +977,11 @@ class Script(default.Script):
         if self.utilities.inFindToolbar(oldFocus):
             newFocus, caretOffset = self.utilities.getCaretContext()
 
+        if newFocus.getRole() == pyatspi.ROLE_UNKNOWN:
+            msg = "WEB: Event source has bogus role. Likely browser bug."
+            debug.println(debug.LEVEL_INFO, msg)
+            newFocus, offset = self.utilities.findFirstCaretContext(newFocus, 0)
+
         text = self.utilities.queryNonEmptyText(newFocus)
         if text and (0 <= text.caretOffset < text.characterCount):
             caretOffset = text.caretOffset