isVisible only tells you if visibility was explicitly set on the
widget. If the widget is invisible because it's parent is invisible
then it will not tell you that. This is trait of the DOM in general.
The only way to find out is to walk the DOM tree upwards checking to
see if the computed style at
I submitted this bug yesterday, however I should have posted it in
groups first to determine if I was doing something wrong.
I think this is a bug in GWT, but I'm not sure. There when I add a
widget to a panel then add that panel to a TabPanel, calling
isVisible() on the widget always returns tru
