[orca] Add more Zombie checks and cache clearing

[Joanmarie Diggs <joanied src gnome org>]

commit ca0e93b4e9a1eee15934d690becd496e195c8c44
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Oct 13 09:03:08 2015 -0400

    Add more Zombie checks and cache clearing

 src/orca/scripts/web/script_utilities.py |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index e3de8ee..cf74140 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -1183,7 +1183,12 @@ class Utilities(script_utilities.Utilities):
         debug.println(debug.LEVEL_INFO, msg)
 
         if obj and self.isZombie(obj):
-            msg = "WEB: Current context obj %s is zombie" % obj
+            msg = "WEB: Current context obj %s is zombie. Clearing cache." % obj
+            debug.println(debug.LEVEL_INFO, msg)
+            self.clearCachedObjects()
+
+            obj, offset = self.getCaretContext()
+            msg = "WEB: Now Current context is: %s, %i" % (obj, offset)
             debug.println(debug.LEVEL_INFO, msg)
 
         line = self.getLineContentsAtOffset(obj, offset, layoutMode, useCache)
@@ -1223,7 +1228,12 @@ class Utilities(script_utilities.Utilities):
         debug.println(debug.LEVEL_INFO, msg)
 
         if obj and self.isZombie(obj):
-            msg = "WEB: Current context obj %s is zombie" % obj
+            msg = "WEB: Current context obj %s is zombie. Clearing cache." % obj
+            debug.println(debug.LEVEL_INFO, msg)
+            self.clearCachedObjects()
+
+            obj, offset = self.getCaretContext()
+            msg = "WEB: Now Current context is: %s, %i" % (obj, offset)
             debug.println(debug.LEVEL_INFO, msg)
 
         line = self.getLineContentsAtOffset(obj, offset, layoutMode, useCache)