Table view question

AppleScript In Xcode
#1

…maybe it’s not a real table view question, but more a text view one…

I have a table view connected to an array controller where one of the fields is connected to a text view for editing.
The table view allows to select multiple rows (for other purposes).
The above mentioned editing only makes sense with a single row selected. So how to control the ‘editable’ of the text view based upon the ‘selectedRowIndexes’?
I can’t find any ‘should…’

TIA for any ideas.

#2

You could probably implement the delegate method -tableViewSelectionDidChange:, and handle it there.

#3

Thanks Shane.

That’s what already is done, but it doesn’t help since it only responses to mouse events.
So something like ‘shift-arrow-down’ is not captured.

#4

What about -tableView:shouldSelectRow:?

#5

Hmm, wouldn’t that contradict the ‘multiple selection allowed’ in this case?

#6

I think I’ve found a way, though it seems to be a strange one.

The text is listed in the table view and for editing in a text view. In the table I put the text into a text field. This can be linked to a ‘textShouldBeginEditing:’.
So with several rows selected this can return ‘false’ (and the text view won’t work) while other things for the selected rows will work.

on textShouldBeginEditing:aNotification
	set idxSet to subsTableView's selectedRowIndexes
	set idxCount to (count of idxSet)
	if idxCount = 1 then
		defaults's setBool:true forKey:"rowTxEditable"
		set zRow to subsArrayController's selectedObjects()'s lastObject()
		return true
	else
		defaults's setBool:false forKey:"rowTxEditable"
		return false
	end if
end textShouldBeginEditing: