public void AddMouseDownListener(Utils.EventImplPriority priority, System.Action <Event, MouseButton, bool> action) => onMouseDownEvent.AddListener(priority, action);
public void AddEndDragListener(Utils.EventImplPriority priority, System.Action <Event, MouseButton, bool> action) => onEndDragEvent.AddListener(priority, action);
public void AddKeyUpListener(Utils.EventImplPriority priority, System.Action <Event, bool> action) => onKeyUpEvent.AddListener(priority, action);