public override void Perform ()
{
// Cast the source and destination controllers
var source = SourceController as NSViewController;
var destination = DestinationController as NSViewController;
// Is there a source?
if (source == null) {
// No, get the current key window
var window = NSApplication.SharedApplication.KeyWindow;
// Swap the controllers
window.ContentViewController = destination;
// Release reference to previous controller
window.ContentViewController?.RemoveFromParentViewController ();
} else {
// Swap the controllers
source.View.Window.ContentViewController = destination;
// Release Reference to previous controller
source.RemoveFromParentViewController ();
}
}
#endregion
