[orca] Remove assumption that utterance elements are strings

[William Walker <wwalker src gnome org>]

commit 930922aede3c2e34e8fd8c24c3dedd83426d3766
Author: Willie Walker <william walker sun com>
Date:   Mon Jun 15 10:57:02 2009 -0400

    Remove assumption that utterance elements are strings

 src/orca/scripts/toolkits/Gecko/script.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/scripts/toolkits/Gecko/script.py b/src/orca/scripts/toolkits/Gecko/script.py
index c336fb1..f08c202 100644
--- a/src/orca/scripts/toolkits/Gecko/script.py
+++ b/src/orca/scripts/toolkits/Gecko/script.py
@@ -5453,7 +5453,8 @@ class Script(default.Script):
         """Returns the ACSS to speak anything for the given obj."""
         if obj.getRole() == pyatspi.ROLE_LINK:
             acss = self.voices[settings.HYPERLINK_VOICE]
-        elif string and string.isupper() and string.strip().isalpha():
+        elif string and isinstance(string, basestring) \
+            and string.isupper() and string.strip().isalpha():
             acss = self.voices[settings.UPPERCASE_VOICE]
         else:
             acss = self.voices[settings.DEFAULT_VOICE]