public IPropertyValue Construct(CssProperty[] properties)
{
if (properties.Length == 4)
{
var options = new IPropertyValue[4];
options[0] = _converter.Construct(properties.Where(m => m.Name == _labels[0]).ToArray());
options[1] = _converter.Construct(properties.Where(m => m.Name == _labels[1]).ToArray());
options[2] = _converter.Construct(properties.Where(m => m.Name == _labels[2]).ToArray());
options[3] = _converter.Construct(properties.Where(m => m.Name == _labels[3]).ToArray());
return options[0] != null && options[1] != null && options[2] != null && options[3] != null ?
new PeriodicValue(options, Enumerable.Empty<CssToken>(), _labels) : null;
}
return null;
}
public IPropertyValue Construct(CssProperty[] properties)
{
var filtered = properties.Where(m => _labels.Contains(m.Name));
var existing = default(String);
foreach (var filter in filtered)
{
var value = filter.Value;
if (existing != null && value != existing)
return null;
existing = value;
}
var result = _converter.Construct(filtered.Take(1).ToArray());
return result != null ? new TransformationValueConverter(result, _labels) : null;
}
