NSComboBox undo bug?
NSComboBox undo bug?
- Subject: NSComboBox undo bug?
- From: Ken Victor <email@hidden>
- Date: Mon, 24 Apr 2006 17:45:40 -0700
i believe the following behavior to be a bug, but perhaps i
misunderstand what should happen. i first discovered this in my own
app, but then discovered the same errant(?) behavior exists in the
SimpleComboBox sample code. since SimpleComboBox claims (in its
readme) to handle undo for the text field of the combo box, i'm
sorta kinda forced to believe that maybe i misunderstand what should
happen.
here's how to see the behavior.
build SimpleComboBox
type a "c" into the Genre combo box text field
SimpleComboBox completes and replaces your typed "c" with "Classic
Rock" with everything but the first "C" selected.
not type command-z (or choose "Undo Typing" from the edit menu)
the result leaves "lassic Rock" in the text field, with the insertion
point at the start of the text field!
i expected undo to first delete the selected text (ie, the completion
text) and then to remove the typed in character. thus, the text field
would be empty, just as it was before the first character was typed.
is my expectation wrong? if not, is this a known bug? and can anyone
suggest a work around (that doesn't involve using private methods or
ivars)? if this is proper behavior, can anyone suggest a solution
that will provide the behavior i'd like (that again, doesn't require
the use of private methods or ivars)?
thanx,
ken
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