[bug #29892] Outline view selected item highlighting not preserved when collapsing/expanding

[matt rice]

Follow-up Comment #5, bug #29892 (project gnustep):

except NSTableView and NSOutlineView don't track selected objects,
if it did, I would expect there to be a -selectObject: method,
and a -selectedObject: method at least

the truth is that it tracks row indexes, and its much easier to add this
behaviour to your NSOutlineView delegate, than it is to stop it from happening
should this not be the behaviour one wants.

but honestly in my opinion NSOutlineView in this case breaks the cardinal sin
of OpenStep, that things shouldn't expand and contract, except based on direct
mouse movement, such as moving a scroll bar,

it makes perfect sense that if you do the above, you need to break the other
cardinal sin of OpenStep, and move the place where the user put the
cursor/selection around when you do so.
so go for it


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