[orca] Handle some string encoding issues we weren't; stop printing tracebacks for exceptions we're handlin

[Joanmarie Diggs <joanied src gnome org>]

commit b8920d3fdd0fb6856a4c9dbc29ba030a78b616b9
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Sat Feb 25 12:45:03 2012 -0500

    Handle some string encoding issues we weren't; stop printing tracebacks for exceptions we're handling

 src/orca/liveregions.py                   |    4 ++++
 src/orca/script_utilities.py              |   13 ++++++++-----
 src/orca/scripts/toolkits/Gecko/script.py |   24 +++++++++++++++++-------
 3 files changed, 29 insertions(+), 12 deletions(-)
---
diff --git a/src/orca/liveregions.py b/src/orca/liveregions.py
index d246b65..9f80951 100644
--- a/src/orca/liveregions.py
+++ b/src/orca/liveregions.py
@@ -436,6 +436,10 @@ class LiveRegionManager:
             # We found an embed character.  We can expect a children-changed
             # event, which we will act on, so just return.
             txt = sourceitext.getText(0, -1)
+            try:
+                txt = txt.decode("UTF-8")
+            except UnicodeEncodeError:
+                pass
             if txt.count(self._script.EMBEDDED_OBJECT_CHARACTER) > 0:
                 return None
 
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index 795b5bd..e4ed43e 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -1715,20 +1715,20 @@ class Utilities:
         accessible text, or -1 something was amuck.
         """
 
+        offset = -1
         try:
             hyperlink = obj.queryHyperlink()
         except NotImplementedError:
-            offset = -1
+            pass
         else:
             # We need to make sure that this is an embedded object in
             # some accessible text (as opposed to an imagemap link).
             #
             try:
                 obj.parent.queryText()
-            except NotImplementedError:
-                offset = -1
-            else:
                 offset = hyperlink.startIndex
+            except:
+                pass
 
         return offset
 
@@ -1782,7 +1782,10 @@ class Utilities:
                     childText = self.expandEOCs(child)
                     if not childText:
                         childText = ""
-                    toBuild[index] = childText.decode("UTF-8")
+                    try:
+                        toBuild[index] = childText.decode("UTF-8")
+                    except UnicodeEncodeError:
+                        toBuild[index] = childText
                 string = "".join(toBuild)
 
         return string
diff --git a/src/orca/scripts/toolkits/Gecko/script.py b/src/orca/scripts/toolkits/Gecko/script.py
index 1888545..2ddd1b6 100644
--- a/src/orca/scripts/toolkits/Gecko/script.py
+++ b/src/orca/scripts/toolkits/Gecko/script.py
@@ -3263,7 +3263,7 @@ class Script(default.Script):
         try:
             state = obj.getState()
         except:
-            debug.printException(debug.LEVEL_WARNING)
+            pass
             return False
         else:
             return state.contains(pyatspi.STATE_SHOWING) \
@@ -3306,6 +3306,10 @@ class Script(default.Script):
         text = self.utilities.queryNonEmptyText(documentFrame)
         if text:
             char = text.getText(text.characterCount - 1, text.characterCount)
+            try:
+                char = char.decode("UTF-8")
+            except UnicodeEncodeError:
+                pass
             if char != self.EMBEDDED_OBJECT_CHARACTER:
                 return [documentFrame, text.characterCount - 1]
 
@@ -3320,6 +3324,10 @@ class Script(default.Script):
             if text:
                 char = text.getText(text.characterCount - 1,
                                     text.characterCount)
+                try:
+                    char = char.decode("UTF-8")
+                except UnicodeEncodeError:
+                    pass
                 if char != self.EMBEDDED_OBJECT_CHARACTER:
                     return [obj.parent, text.characterCount - 1]
 
@@ -3591,7 +3599,6 @@ class Script(default.Script):
             try:
                 summary = self._collectionPageSummary()
             except:
-                debug.printException(debug.LEVEL_SEVERE)
                 summary = self._iterativePageSummary(obj)
         else:
             summary = self._iterativePageSummary(obj)
@@ -4258,7 +4265,10 @@ class Script(default.Script):
                 if unicodeText[nextOffset] != self.EMBEDDED_OBJECT_CHARACTER:
                     return [obj, nextOffset]
                 elif obj.childCount:
-                    child = obj[self.getChildIndex(obj, nextOffset)]
+                    try:
+                        child = obj[self.getChildIndex(obj, nextOffset)]
+                    except:
+                        break
                     if child:
                         return self.findNextCaretInOrder(child,
                                                          -1,
@@ -4278,7 +4288,7 @@ class Script(default.Script):
                                                  -1,
                                                  includeNonText)
             except:
-                debug.printException(debug.LEVEL_SEVERE)
+                pass
 
         elif includeNonText and (startOffset < 0) \
              and (not self.utilities.isLayoutOnly(obj)):
@@ -4309,7 +4319,7 @@ class Script(default.Script):
                             -1,
                             includeNonText)
                     except:
-                        debug.printException(debug.LEVEL_SEVERE)
+                        pass
             obj = obj.parent
 
         return [None, -1]
@@ -4389,7 +4399,7 @@ class Script(default.Script):
                     -1,
                     includeNonText)
             except:
-                debug.printException(debug.LEVEL_SEVERE)
+                pass
 
         elif includeNonText and (startOffset < 0) \
             and (not self.utilities.isLayoutOnly(obj)):
@@ -4420,7 +4430,7 @@ class Script(default.Script):
                             -1,
                             includeNonText)
                     except:
-                        debug.printException(debug.LEVEL_SEVERE)
+                        pass
             obj = obj.parent
 
         return [None, -1]