[orca] Add a check to the Gecko script's onCaretMoved() to be sure the caret moved

[Joanmarie Diggs <joanied src gnome org>]

commit e1c9b48498f1b854c813152d2dff61004d6d55a5
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri Nov 22 15:11:59 2013 -0500

    Add a check to the Gecko script's onCaretMoved() to be sure the caret moved

 src/orca/scripts/toolkits/Gecko/script.py |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/scripts/toolkits/Gecko/script.py b/src/orca/scripts/toolkits/Gecko/script.py
index dc12721..87b7185 100644
--- a/src/orca/scripts/toolkits/Gecko/script.py
+++ b/src/orca/scripts/toolkits/Gecko/script.py
@@ -924,6 +924,10 @@ class Script(default.Script):
             return
 
         obj = event.source
+        firstObj, firstOffset = self.findFirstCaretContext(obj, event.detail1)
+        if firstOffset == contextOffset and firstObj == contextObj:
+            return
+
         if self.isAriaWidget(obj) or not self.inDocumentContent(obj):
             default.Script.onCaretMoved(self, event)
             return
@@ -1309,7 +1313,7 @@ class Script(default.Script):
             default.Script.locusOfFocusChanged(self, event, oldFocus, newFocus)
             return
 
-        caretOffset = 0
+        caretOffset = -1
         if self.utilities.inFindToolbar(oldFocus):
             newFocus, caretOffset = self.getCaretContext()