Name: moC74494 Date: 05/29/98


This is the second time I have submitted this
problem, I received no response after the first.

One must be able to determine where focus is going
if a control loses focus. Suppose you have 3
components that make up a GUI widget. I want
special behavior if the user traverses (either
with a mouse or keyboard) between the 3 components.
BUT, if they go to a control other than the three
that makes up the widget, I want to do some sort
of data validation checking.

If I add a focus listener to all three controls
when focus goes from control 'A' to control 'B',
I get a focusLost first in 'A' and then a
focusGained in 'B'. I have not idea in 'A's
focusLost where the focus is going.

Since the windows events support this knowing what
control is getting the focus, AWT FocusEvent should
also provide this.

I suggest that FocusEvent has two methods:
public Component getPrevious();
public Component getNext();

Then one could do the following:

public void focusLost(FocusEvent e)
{
   Component nextC = e.getNext();
   if ( (nextC != compA) && (nextC != compB) && (nextC != compC) )
   {
      validateDataInControls();
   }
}

PLEASE let me know what you will be doing regarding
this matter. If this is an enhancement, then I
would like to know when I will see a change. If you
are not going to support this, then I have to start
work on making some sort of native piece. (So much
for 100% Pure Java!)

Thanks,
--Ken
(Review ID: 29634)
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