/// <summary>
/// Builds the view model for the client.
/// </summary>
public void BuildViewModel(DotvvmRequestContext context)
{
// serialize the ViewModel
var serializer = CreateJsonSerializer();
var viewModelConverter = new ViewModelJsonConverter(context.IsPostBack)
{
UsedSerializationMaps = new HashSet <ViewModelSerializationMap>()
};
serializer.Converters.Add(viewModelConverter);
var writer = new JTokenWriter();
serializer.Serialize(writer, context.ViewModel);
// persist CSRF token
writer.Token["$csrfToken"] = context.CsrfToken;
// persist encrypted values
if (viewModelConverter.EncryptedValues.Count > 0)
{
writer.Token["$encryptedValues"] = viewModelProtector.Protect(viewModelConverter.EncryptedValues.ToString(Formatting.None), context);
}
// serialize validation rules
var validationRules = SerializeValidationRules(viewModelConverter);
// create result object
var result = new JObject();
result["viewModel"] = writer.Token;
result["url"] = context.OwinContext.Request.Uri.PathAndQuery;
result["virtualDirectory"] = DotvvmMiddleware.GetVirtualDirectory(context.OwinContext);
if (context.IsPostBack || context.IsSpaRequest)
{
result["action"] = "successfulCommand";
var renderedResources = new HashSet <string>(context.ReceivedViewModelJson?["renderedResources"]?.Values <string>() ?? new string[] { });
result["resources"] = BuildResourcesJson(context, rn => !renderedResources.Contains(rn));
}
else
{
result["renderedResources"] = JArray.FromObject(context.ResourceManager.RequiredResources);
}
// TODO: do not send on postbacks
if (validationRules.Count > 0)
{
result["validationRules"] = validationRules;
}
context.ViewModelJson = result;
}
private string GetCorrectSpaUrlPrefix(IDotvvmRequestContext context)
{
var routePath = "";
if (!string.IsNullOrEmpty(PrefixRouteName))
{
routePath = context.Configuration.RouteTable[PrefixRouteName].Url.Trim('/');
}
else
{
return(null);
}
var result = DotvvmMiddleware.GetVirtualDirectory(context.OwinContext);
if (!string.IsNullOrEmpty(routePath))
{
result += "/" + routePath;
}
return(result);
}