using AngleSharp.Css; using AngleSharp.Extensions; namespace AngleSharp.Dom.Css { internal sealed class CssColumnCountProperty : CssProperty, ICssColumnCountProperty, ICssProperty { internal static readonly int? Default = null; internal static readonly IValueConverter<int?> Converter = Converters.IntegerConverter.OrNullDefault(); private int? _count; public int? Count => _count; internal CssColumnCountProperty(CssStyleDeclaration rule) : base(PropertyNames.ColumnCount, rule, PropertyFlags.Animatable) { Reset(); } public void SetCount(int? count) { _count = count; } internal override void Reset() { _count = Default; } protected override bool IsValid(ICssValue value) { return Converter.TryConvert(value, SetCount); } } }