Problem with modal dialogs

[Pascal Bourguignon]

I've got this problem:

In a GNUstep application, after a NSOpenPanel, I open a normal window,
then I open a modal dialog with [OK] and [Cancel] button and some text
items.  The  user  usually just  click  on  OK.  Then the  event  loop
continues.

Well, if  time permits, that is  for example, when  the application is
deactivated between the closing of the NSOpenPanel, and the opening of
the modal dialog,  thus provoking the hidding of  the application menu
and then a  very slow recomposition of same, the  user can click twice
or more on the OK button of the modal dialog.

In that case,  the second click on OK button  results in this critical
alert:

 Critical Error in ${ApplicationName}
 --------------------------------------------------------------------------
 NSInvalidArgumentException: stopModalWithCode: when not in a modal session
                                                [     ] [Ignore] [Abort]


Note  that  this  is  a  behavior  I never  noticed  on  NeXTSTEP  and
OPENSTEP.  I think  that  a  stopModalWithCode: when  not  in a  modal
session should be ignored.


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__Pascal_Bourguignon__              (o_ Software patents are endangering
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