Last week I mentioned that NSTokenFieldCell was working OK for me.
After testing more thoroughly I need to correct the record. As stated
in the Release Notes for Mac OS 10.4, there are issues using
NSTokenFieldCell in an NSTableView. I found the following results
testing with Mac OS 10.5.
* Using dataSource, displaying tokens: Works OK.
* Using bindings, displaying tokens: Works OK.
* Using dataSource, editing tokens: Works OK as long as there is a
token already in the cell. Clicking on the token will open the field
editor and allow tokens to be added or deleted. But if there is not
at least one token to begin with, you can click all day and nothing
happens.
* Using bindings, editing tokens: Clicking on the cell always opens
the field editor, but when editing is ended the bound-to object gets a
setFoo: message with parameter equal to an empty array, thus removing
all Foo objects in the array in the data model.
* Although setEditable:NO does disable editing as expected, neither
setEditor:NO no setEnabled:NO seems to change the appearance of the
cell to the expected "grayed out" look.
I tried to work around the issue by getting the window's first
responder. With bindings it turned out to be a kind of Text View
object which was definitely the field editor for the column. It was
promising, but I was unable to find any message I could send it which
would return the tokens :(
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