[bug #25369] NSOutlineView has small Cocoa incompatibility

[Doug Simons]

URL:
  <http://savannah.gnu.org/bugs/?25369>

                 Summary: NSOutlineView has small Cocoa incompatibility
                 Project: GNUstep
            Submitted by: theeggcamefirst
            Submitted on: Wed 21 Jan 2009 03:23:52 AM 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:

In GNUstep, an NSOutlineView calls the delegate method
outlineView:isItemExpandable: as the first delegate call, passing nil as the
item for the top level. Cocoa doesn't call this method for the top level at
all, so my implementation didn't handle that case, resulting in an empty
outline view. This was trivial to fix in my code, of course, but it represents
a small incompatibility between GS and Cocoa.







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