PowerArgs.Cli.FocusManager.TrySetFocus C# (CSharp) Method

        public bool TrySetFocus(ConsoleControl newFocusControl)
        {
            var index = focusStack.Peek().Controls.IndexOf(newFocusControl);
            if (index < 0)
            {
                throw new InvalidOperationException("The given control is not in the control tree");
            }

            if(newFocusControl.CanFocus == false)
            {
                return false;
            }
            else  if(newFocusControl == FocusedControl)
            {
                return true;
            }
            else
            {
                if (FocusedControl != null)
                {
                    ClearFocus();
                }

                newFocusControl.HasFocus = true;
                FocusedControl = newFocusControl;
                focusStack.Peek().FocusIndex = index;

                if (FocusedControl != null)
                {
                    FocusedControl.FireFocused(true);
                }
                return true;
            }
        }