[bug #25572] NSSavePanel/NSOpenPanel return an instance variable instead of object copy

[Riccardo mottola]

URL:
  <http://savannah.gnu.org/bugs/?25572>

                 Summary: NSSavePanel/NSOpenPanel return an instance variable
instead of object copy
                 Project: GNUstep
            Submitted by: rmottola
            Submitted on: Thu 12 Feb 2009 11:47:50 PM GMT
                Category: Gui/AppKit
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

debugging the reason of easydiff Crashing while opening the second file to
compare, I traced it to a problem with [NSSavePanel directory]. That method
returns just the instance variable _directory. 

Since the second time the shared instance of the panel is gotten the internal
variable gets ASSIGNed, the original object returned the first time gets
released, and thus gets invalid. 

even if this could be worked around in several ways in the applicatioin, I
consider ths behaviour unexpected. I thus run the following test on the mac: 

{ 
NSOpenPanel *panel; 
NSString *dir; 

panel = [NSOpenPanel openPanel]; 
dir = nil; 
[panel runModalForDirectory: dir file:nil types:nil]; 
dir = [panel directory]; 
panel = [NSOpenPanel openPanel]; 
[panel runModalForDirectory: dir file:nil types:nil]; 
NSLog(@"dir: %@", dir); 
NSLog(@"file: %@", [[panel filenames] objectAtIndex:0]); 

} 

and it works fine. thus I think gnustep should return an autoreleaed copy of
the directory string.




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