Re: NSComboBox delegate

[Quentin Mathé]

Le 1 févr. 06 à 19:10, Andreas Höschler a écrit :

> Hi all,
>
> I want to be notified when I leave a combobox with tab after  
> entering a few charatcers. setCompletes is set to YES. I implemented
>
> - (void)comboBoxWillDismiss:(NSNotification *)notification
> {
>    NSLog(@"comboBoxWillDismiss");
> }

For this one, I don't know, NSComboBoxCell code seems ok. I have to  
take a more in depth look at it.

> - (void)textDidEndEditing:(NSNotification *)aNotification
> {
>    NSLog(@"textDidEndEditing");
> }
> - (void)textDidChange:(NSNotification *)aNotification
> {
>    NSLog(@"textDidChange");
> }
>
> in the delegate but none of these is ever called. Any ideas?

For these ones, it is the expected behavior I think.

textDidChange: or textDidEndEditing: are delegate methods specific to  
NSText/NSTextView, but not part of NSControl.
NSTextField is in fact NSComboBox superclass and NSControl is  
NSTextField superclass.

At first sight, it may seem that NSTextField sends such  
textDidChange: method to its delegate because it implements this  
method. In fact NSTextField is the field editor delegate, that's why  
it implements these NSTextView delegate methods.

Here are NSTextView notifications :
- textShouldBeginEditing:
- textDidBeginEditing:
- textDidChange:
- textShouldEndEditing:
- textDidEndEditing:

They are received by NSTextField/NSComboBox, but propagated to their  
own delegate in form of NSControl notifications.

So you have to rely on NSControl notifications which are :
- control:textShouldBeginEditing:
- control:textShouldEndEditing:
- controlTextDidBeginEditing:
- controlTextDidChange:
- controlTextDidEndEditing:

I hope I haven't made wrong statements :-)
Let me know whether it works better this way or not.

Quentin.

--
Quentin Mathé
qmathe@club-internet.fr