LSUIElement behaves inconsistently with activateIgnoringOtherApps

Question

Specifically, it behaves inconsistently regarding text field focus.

I have an LSUIElement popping up a status menu. Within that menu there is a view containing a text field. The text field needs to be selectable -- not necessarily selected by default, but whichever.

When the status item is clicked, it triggers

[NSApp activateIgnoringOtherApps:YES];

And it works, about half the time.* The other half the status menu seems to consider itself "in the background" and won't let me put focus on the text field even by clicking on it. (I know the status item click-trigger is firing b/c there's an NSLog on it.)

Is this a bug in the way Apple handles these status items, or am I mishandling activateIgnoringOtherApps?

*In fact, it seems to fail only the first time after another app is activated. After that it works fine.

The complete snippet:

-(void)statusItemClicked:(id)sender {
    //show the popup menu associated with the status item.
    [statusItem popUpStatusItemMenu:statusMenu];

    //activate *after* showing the popup menu to obtain focus for the text field.
    [NSApp activateIgnoringOtherApps:YES];

}

Answer 1

Finally came up with a workaround for this.

Instead of popping the menu in your click handler, activate the app then schedule an NSTimer with no delay that pops the menu:

-(void)pop:(NSTimer *)timer {
    [statusItem popUpStatusItemMenu:theMenu];
}

-(void)statusItemClicked:sender {
    [NSApp activateIgnoringOtherApps:YES];
    [NSTimer scheduledTimerWithTimeInterval:0.0 target:self selector:@selector(pop:) userInfo:nil repeats:NO];
}

pop: is called on the next frame so the delay is imperceptible but long enough for activateIgnoringOtherApps: to do whatever was preventing it from working as expected when popping the menu in the same frame.