Hide Titlebar when mouse is idle - Swift (Cocoa OS X)

Question

In my Application, I'm trying to make it so that my AVPlayerView hides the titlebar when the mouse is idle.

Screenshot: https://i.stack.imgur.com/rMcrv.png

Basically I want the the same effect the video controls have in which it automatically disappears if no mouse activity.

Screenshot: https://i.stack.imgur.com/TtTtb.png

Here is what I have right now:

override func viewDidAppear() {
    super.viewDidAppear()
    self.view.window?.titleVisibility = NSWindowTitleVisibility.Hidden;
    self.view.window?.titlebarAppearsTransparent = false
    self.view.window?.styleMask = NSTitledWindowMask | NSFullSizeContentViewWindowMask | NSClosableWindowMask | NSMiniaturizableWindowMask | NSResizableWindowMask
}

Any tips? Thanks!

Answer 1

I would probably set an NSTimer that would determine how long before the titlebar disappears. This would get invalidated and reset every time mouseMoved: is called. Once it gets called, then the only way I know to make an NSWindow titlebar fade out is to get the titlebar view through looping or using the superview of the button (of course it could always change later):

[[[[self.window standardWindowButton:NSWindowCloseButton] superview] animator] setAlphaValue:0];

The titlebar buttons still work, so you'll have to group it in an NSAnimationContext and setHidden: when the animation completes.