/// <summary>
/// Return true if an element matches a specific DOM position-type filter
/// </summary>
/// <param name="obj"></param>
/// <param name="position"></param>
/// <param name="criteria"></param>
/// <returns></returns>
protected bool MatchesDOMPosition(IDomElement obj, PositionType position, string criteria)
{
switch (position)
{
case PositionType.FirstChild:
return(obj.PreviousElementSibling == null);
case PositionType.LastChild:
return(obj.NextElementSibling == null);
case PositionType.Odd:
return(obj.ElementIndex % 2 != 0);
case PositionType.Even:
return(obj.ElementIndex % 2 == 0);
case PositionType.All:
return(true);
case PositionType.NthChild:
return(NthChildMatcher.IndexMatches(obj.ElementIndex, criteria));
default:
throw new NotImplementedException("Unimplemented position type selector");
}
}
