ComponentFactory.Krypton.Ribbon.CollapsedGroupController.KeyDownPopupMinimized C# (CSharp) Method

        private void KeyDownPopupMinimized(VisualPopupMinimized popupMinimized, KeyEventArgs e)
        {
            switch (e.KeyData)
            {
                case Keys.Tab | Keys.Shift:
                case Keys.Left:
                    popupMinimized.SetPreviousFocusItem();
                    break;
                case Keys.Tab:
                case Keys.Right:
                    popupMinimized.SetNextFocusItem();
                    break;
                case Keys.Space:
                case Keys.Enter:
                    OnClick(new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));

                    // Get access to the popup for the group
                    if ((VisualPopupManager.Singleton.CurrentPopup != null) &&
                        (VisualPopupManager.Singleton.CurrentPopup is VisualPopupGroup))
                    {
                        // Cast to correct type
                        VisualPopupGroup popupGroup = (VisualPopupGroup)VisualPopupManager.Singleton.CurrentPopup;
                        popupGroup.SetFirstFocusItem();
                    }
                    break;
            }
        }