How long a delay did you give performSelector?
This is working for me now on 10.8 (and a new MBP) without needing
performSelector, but on 10.7 with an old MBP, I had to use a delay of
animationResizeTime + 0.5 seconds. I haven't yet tested other combinations of
MBP age and OS version.
On 2012-08-06, at 1:25 AM, Graham Cox <graham....@bigpond.com> wrote:
> Run into a bug where if I have a number of NSTextFields in a window, and
> programatically switch the first responder of the window among these fields,
> it works fine, but if there is a NSTabView interposed between the fields and
> the window, they just cannot be set to be first responder programatically at
> all - it goes through the motions but it fails silently.
>
> The text field has a blue focus ring, but there is no blinking cursor and
> typing results in a beep. The exact same code, without the tab view, works
> fine.
>
> The field editor delegate causes the text field focus to shift every 4
> characters:
>
> - (void) controlTextDidChange:(NSNotification *)obj
> {
> NSTextField* control = [obj object];
>
> NSString* text = [control stringValue];
>
> if([text length] >= 4 )
> {
> NSString* shortStr = [[text substringToIndex:4]
> uppercaseString];
> [control setStringValue:shortStr];
>
> NSResponder* nextField = [control nextKeyView];
>
> NSLog(@"got 4 characters: '%@', moving to field: %@", shortStr,
> nextField );
>
> if([nextField acceptsFirstResponder])
> [[self window] makeFirstResponder:nextField];
>
> }
>
> [self conditionallyEnableOK];
> }
>
> The 'self' here is the window controller and field editor's delegate.
>
> I also tested to see whether the window returned YES or NO from
> makeFirstResponder: and it always returns YES, indicating success.
>
> Has anyone else run into this? I've seen a few postings in the archives on
> apparently similar topics, and one suggestion is to delay the
> makeFirstResponder using -performSelector:... I have tried that but it
> doesn't work either. Some of these postings go back to 2004 - it's hard to
> believe such a painfully obvious bug would still be unfixed in 10.8
>
> --Graham
>
>
>
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