/// <summary>
/// Adds a dynamic dotNetify view model.
/// </summary>
/// <param name="app">Application builder.</param>
/// <param name="vmName">View model name.</param>
/// <param name="propertyBuilder">Delegate that returns an object for building the view model's properties.</param>
private static IApplicationBuilder MapVM <T>(this IApplicationBuilder app, string vmName, Delegate propertyBuilder) where T : BaseVM, new()
{
vmName = !string.IsNullOrWhiteSpace(vmName) ? vmName : throw new ArgumentNullException(nameof(vmName));
propertyBuilder = propertyBuilder ?? throw new ArgumentNullException(nameof(propertyBuilder));
// Make sure "UseDotNetify()" is called first.
if (!_useDotNetify)
{
app.UseWebSockets();
app.UseDotNetify(config => config.UseFilter <AuthorizeFilter>());
}
VMController.Register(vmName, _ =>
{
using (var scope = app.ApplicationServices.CreateScope())
{
var args = new List <object>();
foreach (var parameter in propertyBuilder.Method.GetParameters())
{
var instance = scope.ServiceProvider.GetRequiredService(parameter.ParameterType);
args.Add(instance);
}
var propertySource = propertyBuilder.DynamicInvoke(args.ToArray());
if (propertySource is Task)
{
var resultProperty = propertySource.GetType().GetProperty("Result");
propertySource = resultProperty.GetValue(propertySource);
}
return(VMBuilder.Build <T>(propertySource, propertyBuilder.Method.GetCustomAttributes()));
}
});
return(app);
}
/// <summary>
/// Register a specific view model class type.
/// </summary>
public IDotNetifyConfiguration Register <T>() where T : INotifyPropertyChanged
{
VMController.Register <T>();
return(this);
}
/// <summary>
/// Register a specific runtime view model class type.
/// </summary>
public IDotNetifyConfiguration Register(string typeName, Func <object[], INotifyPropertyChanged> factory)
{
VMController.Register(typeName, factory);
return(this);
}
