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[bug #25363] NSOpenPanel's delegate method panel:shouldShowFilename: is

From: Doug Simons
Subject: [bug #25363] NSOpenPanel's delegate method panel:shouldShowFilename: is called too often
Date: Mon, 19 Jan 2009 22:21:35 +0000
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_4_11; en) AppleWebKit/525.27.1 (KHTML, like Gecko) Version/3.2.1 Safari/525.27.1


                 Summary: NSOpenPanel's delegate method
panel:shouldShowFilename: is called too often
                 Project: GNUstep
            Submitted by: theeggcamefirst
            Submitted on: Mon 19 Jan 2009 10:21:33 PM GMT
                Category: Gui/AppKit
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any



The NSOpenPanel (and NSSavePanel) delegate method panel:shouldShowFilename:
is incorrectly called with subpaths as well as the final path. Cocoa doesn't
do this.

For example, if I set the default directory to /path/to/some/folder, it seems
that the delegate method gets called with "/", "/path", "/path/to", and
"/path/to/some" as well as "/path/to/some/folder". I want to restrict use of
the open panel to only allow opening files within that particular folder and
its subfolders, so my implementation of this method (which worked under Cocoa)
rejected paths that didn't begin with /path/to/some/folder. With GNUstep's
behavior, my implementation is called first with "/" and rejects it, so the
user isn't able to select anything.

Note: I had a hard time verifying *exactly* what Cocoa does, but it calls
this method very seldom, and GS calls it a *lot*.


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