gistfile1.m

@implementation LaunchButton

- (id)initWithFrame:(NSRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        // Initialization code here.
        
        NSTrackingArea *area = [[NSTrackingArea alloc] initWithRect:NSZeroRect options:NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways | NSTrackingInVisibleRect owner:self userInfo:nil];
        [self addTrackingArea:area];
	
    }
    return self;
}


-(void)mouseEntered:(NSEvent *)event
{
    popupTimer = [NSTimer scheduledTimerWithTimeInterval:1.5 target:self selector:@selector(showPopup) userInfo:nil repeats:NO];
}

-(void)mouseExited:(NSEvent *)event
{
    [popupTimer invalidate];
    [[NSNotificationCenter defaultCenter] postNotificationName:MAIN_OBSERVER_NAME_STRING object:@"hidePopover"];
}

-(void)showPopup
{
    [self animateBlink:self];
}