CODEWITHSUNDEEP
cocoanswindownswindowcontroller
tux91
tux91

Reputation: 1684

How to catch the moment when a window starts deminiaturizing?

NSWindowDelegate protocol has a windowDidDeminiaturize callback, but no windowWillDeminiaturize callback. I need to catch the moment when the window is starting to deminiaturize and make changes to it before the user sees the changes applied.

I can't do the changes in windowDidMiniaturize because I need to show another window; if I do it in windowDidMiniaturize, this other window will appear as soon as the first one has miniaturized.

Any ideas?

Upvotes: 2

Views: 561

Answers (1)

zpasternack
zpasternack

Reputation: 17898

Edit: I'm leaving this answer here, but it totally does not work reliably, see my comment below.

You could subclass NSWindow and override deminiaturize:.

@interface MyWindow : NSWindow
@end

@implementation MyWindow

- (void) deminiaturize:(id)sender
{
    NSLog( @"window about to deminiaturize!" );
    [super deminiaturize:sender];
}
@end

Probably you want the window delegate to take some action when this happens, not the window, so you could do something like this:

- (void) deminiaturize:(id)sender
{
    id<NSWindowDelegate> delegate = [self delegate];
    if( [delegate respondsToSelector:@selector(windowWillDeminiaturize)] ) {
        [delegate performSelector:@selector(windowWillDeminiaturize)];
    }

    [super deminiaturize:sender];
}

Upvotes: 1

Related Questions