/// <summary>
/// Creates a LoginDialog inside of the current window.
/// </summary>
/// <param name="window">The window that is the parent of the dialog.</param>
/// <param name="title">The title of the LoginDialog.</param>
/// <param name="message">The message contained within the LoginDialog.</param>
/// <param name="settings">Optional settings that override the global metro dialog settings.</param>
/// <returns>The text that was entered or null (Nothing in Visual Basic) if the user cancelled the operation.</returns>
public static Task<LoginDialogData> ShowLoginAsync(this MetroWindow window, string title, string message, LoginDialogSettings settings = null)
{
window.Dispatcher.VerifyAccess();
return HandleOverlayOnShow(settings, window).ContinueWith(z =>
{
return (Task<LoginDialogData>)window.Dispatcher.Invoke(new Func<Task<LoginDialogData>>(() =>
{
if (settings == null)
{
settings = new LoginDialogSettings();
}
//create the dialog control
LoginDialog dialog = new LoginDialog(window, settings)
{
Title = title,
Message = message
};
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, dialog);
dialog.SizeChangedHandler = sizeHandler;
return dialog.WaitForLoadAsync().ContinueWith(x =>
{
if (DialogOpened != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogOpened(window, new DialogStateChangedEventArgs())));
}
return dialog.WaitForButtonPressAsync().ContinueWith(y =>
{
//once a button as been clicked, begin removing the dialog.
dialog.OnClose();
if (DialogClosed != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogClosed(window, new DialogStateChangedEventArgs())));
}
Task closingTask = (Task)window.Dispatcher.Invoke(new Func<Task>(() => dialog._WaitForCloseAsync()));
return closingTask.ContinueWith(a =>
{
return ((Task)window.Dispatcher.Invoke(new Func<Task>(() =>
{
window.SizeChanged -= sizeHandler;
window.metroDialogContainer.Children.Remove(dialog); //remove the dialog from the container
return HandleOverlayOnHide(settings, window);
//window.overlayBox.Visibility = System.Windows.Visibility.Hidden; //deactive the overlay effect
}))).ContinueWith(y3 => y).Unwrap();
});
}).Unwrap();
}).Unwrap().Unwrap();
}));
}).Unwrap();
}
