/// <summary>
/// Create cells for the provided state view.
/// </summary>
/// <param name="context">Context used to build the cell view tree.</param>
/// <param name="parentCellView">The parent cell view.</param>
public override IFrameCellView BuildNodeCells(IFrameCellViewTreeContext context, IFrameCellViewCollection parentCellView)
{
((IFocusCellViewTreeContext)context).UpdateNodeFrameVisibility(this, out bool OldFrameVisibility);
IFocusCellView Result;
if (((IFocusCellViewTreeContext)context).IsVisible)
{
Result = base.BuildNodeCells(context, parentCellView) as IFocusCellView;
}
else
{
IFocusEmptyCellView EmptyCellView = CreateEmptyCellView(((IFocusCellViewTreeContext)context).StateView, (IFocusCellViewCollection)parentCellView);
ValidateEmptyCellView((IFocusCellViewTreeContext)context, EmptyCellView);
Result = EmptyCellView;
}
((IFocusCellViewTreeContext)context).RestoreFrameVisibility(OldFrameVisibility);
return(Result);
}
private protected virtual void ValidateEmptyCellView(IFocusCellViewTreeContext context, IFocusEmptyCellView emptyCellView)
{
Debug.Assert(emptyCellView.StateView == context.StateView);
IFocusCellViewCollection ParentCellView = emptyCellView.ParentCellView;
}
private protected override void ValidateEmptyCellView(IFocusCellViewTreeContext context, IFocusEmptyCellView emptyCellView)
{
Debug.Assert(((ILayoutEmptyCellView)emptyCellView).StateView == ((ILayoutCellViewTreeContext)context).StateView);
ILayoutCellViewCollection ParentCellView = ((ILayoutEmptyCellView)emptyCellView).ParentCellView;
}