private async Task ValidSubmit()
{
var loginCancelEventArgs = new LoginCancelEventArgs();
await OnLoggingIn.InvokeAsync(loginCancelEventArgs);
if (loginCancelEventArgs.Cancel)
{
Model.Password = string.Empty;
}
else
{
var authenticateEventArgs = new AuthenticateEventArgs();
await OnAuthenticate.InvokeAsync(authenticateEventArgs);
if (authenticateEventArgs.Authenticated)
{
await OnLoggedIn.InvokeAsync(EventArgs.Empty);
if (!string.IsNullOrEmpty(DestinationPageUrl))
{
NavigationManager.NavigateTo(DestinationPageUrl);
}
ShowFailureText = false;
}
else
{
await OnLoginError.InvokeAsync(EventArgs.Empty);
Model.Password = string.Empty;
ShowFailureText = true;
}
}
}
private void RaiseOnResponse(string message)
{
var rawMessage = message.Split(':');
var type = rawMessage[0];
if (type.Contains("error"))
{
OnLoginError?.Invoke(rawMessage[2]);
return;
}
if (type.Contains("shutdown"))
{
OnLoginError?.Invoke(rawMessage[2]);
return;
}
if (type.Contains("login"))
{
OnLogin?.Invoke();
return;
}
if (type.Contains("logout"))
{
DestroyRunTask();
OnLogout?.Invoke();
return;
}
if (type.Contains("message"))
{
OnMessage?.Invoke(rawMessage[2]);
return;
}
if (type.Contains("members"))
{
OnMembers?.Invoke(rawMessage[2]);
return;
}
}
private void OnLoginHandler(LoginManagerLoginResult result, NSError error)
{
if (error != null || result == null || result.IsCancelled)
{
if (result != null && result.IsCancelled)
{
OnLoginError?.Invoke(new Exception("Login Canceled."));
}
if (error != null)
{
OnLoginError?.Invoke(new Exception(error.LocalizedDescription));
}
}
else
{
var request = new GraphRequest("me", new NSDictionary("fields", "id, first_name, email, last_name, picture.width(500).height(500)"));
request.Start(OnRequestHandler);
}
}
public void Logout()
{
OnLoginError?.Invoke(new NotImplementedException());
}
public void OnError(FacebookException error)
{
OnLoginError?.Invoke(new System.Exception(error.LocalizedMessage));
}
public void OnCancel()
{
OnLoginError?.Invoke(new System.Exception("Login Canceled."));
}
private void OnRequestHandler(GraphRequestConnection connection, NSObject result, NSError error)
{
if (error != null || result == null)
{
OnLoginError?.Invoke(new Exception(error.LocalizedDescription));
}
else
{
var id = string.Empty;
var first_name = string.Empty;
var email = string.Empty;
var last_name = string.Empty;
var url = string.Empty;
try
{
id = result.ValueForKey(new NSString("id"))?.ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
try
{
first_name = result.ValueForKey(new NSString("first_name"))?.ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
try
{
email = result.ValueForKey(new NSString("email"))?.ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
try
{
last_name = result.ValueForKey(new NSString("last_name"))?.ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
try
{
url = ((result.ValueForKey(new NSString("picture")) as NSDictionary).ValueForKey(new NSString("data")) as NSDictionary).ValueForKey(new NSString("url")).ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
//Grab the user and send the success event
User = new FacebookUser(id, AccessToken.CurrentAccessToken.TokenString, first_name, last_name, email, url);
OnLoginSuccess?.Invoke(User);
}
}
