NSViewController Hierarcy

NSWindowControllerのcontentViewControllerからのNSViewControllerの階層表示

- (void)showViewControllerHierarchy:(NSViewController *)viewController level:(NSInteger)level
{
    if(!viewController) return;

    NSString *desc = [NSString stringWithFormat:@"<%p> %@", viewController, viewController];
    fprintf(stderr, "%*s%s\n", (int)level * 4, " ", desc.UTF8String);
    for(NSViewController *vc in viewController.childViewControllers) {
        [self showViewControllerHierarchy:vc level:level + 1];
    }
}

- (IBAction)showViewControllerHierarchy:(id)sender
{
    [self showViewControllerHierarchy:self.contentViewController level:0];
}