/// <summary>
/// Registers the default styling service with a new CSS style engine
/// to retrieve, if no other styling service has been registered yet.
/// </summary>
/// <param name="configuration">The configuration to extend.</param>
/// <param name="setup">Optional setup for the style engine.</param>
/// <returns>The new instance with the service.</returns>
public static IConfiguration WithCss(this IConfiguration configuration, Action <CssStyleEngine> setup = null)
{
if (configuration == null)
{
throw new ArgumentNullException(nameof(configuration));
}
if (!configuration.GetServices <IStylingProvider>().Any())
{
var service = new StylingService();
var engine = new CssStyleEngine();
setup?.Invoke(engine);
service.Register(engine);
return(configuration.With(service));
}
return(configuration);
}
/// <summary>
/// Registers the default styling service with a new CSS style engine
/// to retrieve, if no other styling service has been registered yet.
/// </summary>
/// <param name="configuration">The configuration to extend.</param>
/// <param name="setup">Optional setup for the style engine.</param>
/// <returns>The new instance with the service.</returns>
public static IConfiguration WithCss(this IConfiguration configuration, Action <CssStyleEngine> setup = null)
{
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
if (configuration.GetServices <IStylingService>().Any() == false)
{
var service = new StylingService();
var engine = new CssStyleEngine();
if (setup != null)
{
setup(engine);
}
service.Register(engine);
return(configuration.With(service));
}
return(configuration);
}