using AngleSharp.Css; namespace AngleSharp.Dom.Css { internal sealed class CssColumnSpanProperty : CssProperty, ICssColumnSpanProperty, ICssProperty { internal static readonly bool Default = false; internal static readonly IValueConverter<bool> Converter = Converters.Toggle(Keywords.All, Keywords.None); private bool _span; public bool IsSpanning => _span; internal CssColumnSpanProperty(CssStyleDeclaration rule) : base(PropertyNames.ColumnSpan, rule, PropertyFlags.None) { Reset(); } public void SetSpanning(bool span) { _span = span; } internal override void Reset() { _span = Default; } protected override bool IsValid(ICssValue value) { return Converter.TryConvert(value, SetSpanning); } } }