internal static void clearFacebookSession(Action <Boolean, Exception> callback)
{
if (facebook != null && facebook.isSessionValid())
{
facebook.setAccessToken(null);
}
FacebookSession.clear();
clearFacebookCookies(callback);
}
/// <summary>
/// Logs a user into the registered application with Facebook account with Facebook permissions.
/// </summary>
/// <param name="permissionArray">Permission array</param>
/// <param name="callback">Method to be called when login operation finishes</param>
public static void login(String[] permissionArray, Action <NetmeraUser, Exception> callback)
{
String securityToken = NetmeraClient.getSecurityToken();
if (securityToken != null && securityToken.Trim() != "")
{
Popup popup = new Popup();
LoginUserControl control = new LoginUserControl();
control.btnCancel.Click += new RoutedEventHandler((s, e) =>
{
NetmeraUser user = null;
user = NetmeraUser.getCurrentUser();
if (callback != null)
{
callback(user, null);
}
});
try
{
NetmeraUser.clearSocialSessions((logout, ex) =>
{
if (logout && ex == null)
{
control.webBrowser.Loaded += new RoutedEventHandler((s, e) =>
{
facebook.getFacebookLoginUri(permissionArray, (loginUri, ex1) =>
{
if (loginUri != null && ex1 == null)
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
control.webBrowser.Navigate(loginUri);
});
}
else
{
if (callback != null)
{
callback(null, ex1);
}
}
});
});
control.webBrowser.LoadCompleted += new LoadCompletedEventHandler((s, e) =>
{
String ss = control.webBrowser.SaveToString();
facebook.getFacebookAccessToken(e.Uri, (accessToken, ex2) =>
{
if (!String.IsNullOrEmpty(accessToken))
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
popup.IsOpen = false;
getFacebookUser((user, ex3) =>
{
if (user != null && ex3 == null)
{
FacebookSession.save(facebook);
}
callback(user, ex3);
});
});
}
else if (ex2 != null)
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
popup.IsOpen = false;
if (callback != null)
{
callback(null, ex2);
}
});
}
});
});
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
popup.Child = control;
popup.IsOpen = true;
});
}
else
{
if (callback != null)
{
callback(null, ex);
}
}
});
}
catch (Exception)
{
if (callback != null)
{
callback(null, new NetmeraException(NetmeraException.ErrorCode.EC_FB_ERROR, "Error occured while logging in facebook."));
}
}
}
else
{
if (callback != null)
{
callback(null, new NetmeraException(NetmeraException.ErrorCode.EC_API_KEY_NOT_FOUND, "You didn't set your api key. Please use NetmeraClient.init(apiKey)."));
}
}
}
/// <summary>
/// Initiliazes Netmera Facebook utilities with application Id
/// </summary>
/// <param name="appId">Id of the Facebook application</param>
public static void initialize(String appId)
{
facebook = new Facebook(appId);
FacebookSession.restore(facebook);
}