[Zope3-checkins] CVS: Zope3/src/zope/app/form - widget.py:1.10.4.4

[Garrett Smith]

Update of /cvs-repository/Zope3/src/zope/app/form
In directory cvs.zope.org:/tmp/cvs-serv10762/src/zope/app/form

Modified Files:
      Tag: ozzope-widgets-branch
	widget.py 
Log Message:

Created a utility method _renderedValueSet that clarifies the use of
_data_marker.


=== Zope3/src/zope/app/form/widget.py 1.10.4.3 => 1.10.4.4 ===
--- Zope3/src/zope/app/form/widget.py:1.10.4.3	Sat Feb  7 21:52:26 2004
+++ Zope3/src/zope/app/form/widget.py	Sun Feb  8 23:29:05 2004
@@ -54,6 +54,14 @@
             return (ts.translate(text, "zope", context=self.request) or text)
         else:
             return text
+            
+    def _renderedValueSet(self):
+        """Returns True if the the widget's rendered value has been set.
+        
+        This is a convenience method that widgets can use to check whether
+        or not setRenderedValue was called.
+        """
+        return self._data is not self._data_marker
 
     def setPrefix(self, prefix):
         if not prefix.endswith("."):