OptionValueConverter
using AngleSharp.Dom.Css;
using AngleSharp.Parser.Css;
using System.Collections.Generic;
using System.Linq;
namespace AngleSharp.Css.ValueConverters
{
internal sealed class OptionValueConverter : IValueConverter
{
private sealed class OptionValue : IPropertyValue
{
private readonly CssValue _original;
public string CssText => string.Empty;
public CssValue Original => _original;
public OptionValue(IEnumerable<CssToken> tokens)
{
_original = new CssValue(tokens);
}
public CssValue ExtractFor(string name)
{
return null;
}
}
private readonly IValueConverter _converter;
public OptionValueConverter(IValueConverter converter)
{
_converter = converter;
}
public IPropertyValue Convert(IEnumerable<CssToken> value)
{
if (!value.Any())
return new OptionValue(value);
return _converter.Convert(value);
}
public IPropertyValue Construct(CssProperty[] properties)
{
return _converter.Construct(properties) ?? new OptionValue(Enumerable.Empty<CssToken>());
}
}
}