/// <summary>
/// Hides a visible Metro Dialog instance.
/// </summary>
/// <param name="window">The window with the dialog that is visible.</param>
/// <param name="dialog">The dialog instance to hide.</param>
/// <returns>A task representing the operation.</returns>
/// <exception cref="InvalidOperationException">
/// The <paramref name="dialog"/> is not visible in the window.
/// This happens if <see cref="ShowMetroDialogAsync"/> hasn't been called before.
/// </exception>
public static Task HideMetroDialogAsync(this MetroWindow window, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
if (!window.metroDialogContainer.Children.Contains(dialog))
{
throw new InvalidOperationException("The provided dialog is not visible in the specified window.");
}
window.SizeChanged -= dialog.SizeChangedHandler;
dialog.OnClose();
Task closingTask = (Task)window.Dispatcher.Invoke(new Func <Task>(() => dialog._WaitForCloseAsync()));
return(closingTask.ContinueWith <Task>(a =>
{
if (DialogClosed != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogClosed(window, new DialogStateChangedEventArgs()
{
})));
}
return (Task)window.Dispatcher.Invoke(new Func <Task>(() =>
{
window.metroDialogContainer.Children.Remove(dialog); //remove the dialog from the container
return window.HideOverlayAsync();
}));
}).Unwrap());
}
private static Task HandleOverlayOnHide(MetroDialogSettings settings, MetroWindow window)
{
Task result = null;
if (!window.metroActiveDialogContainer.Children.OfType <BaseMetroDialog>().Any())
{
result = (settings == null || settings.AnimateHide ? window.HideOverlayAsync() : Task.Factory.StartNew(() => window.Dispatcher.Invoke(new Action(window.HideOverlay))));
}
else
{
var tcs = new System.Threading.Tasks.TaskCompletionSource <object>();
tcs.SetResult(null);
result = tcs.Task;
}
result.ContinueWith(task =>
{
window.Invoke(() =>
{
if (window.metroActiveDialogContainer.Children.Count == 0)
{
window.SetValue(MetroWindow.IsCloseButtonEnabledWithDialogPropertyKey, BooleanBoxes.TrueBox);
window.RestoreFocus();
}
else
{
var onTopShownDialogSettings = window.metroActiveDialogContainer.Children.OfType <BaseMetroDialog>().LastOrDefault()?.DialogSettings;
var isCloseButtonEnabled = window.ShowDialogsOverTitleBar || onTopShownDialogSettings == null || onTopShownDialogSettings.OwnerCanCloseWithDialog;
window.SetValue(MetroWindow.IsCloseButtonEnabledWithDialogPropertyKey, BooleanBoxes.Box(isCloseButtonEnabled));
}
});
});
return(result);
}
private static Task HandleOverlayOnHide(MetroDialogSettings settings, MetroWindow window)
{
if (!window.metroActiveDialogContainer.Children.OfType <BaseMetroDialog>().Any())
{
return(settings == null || settings.AnimateHide ? window.HideOverlayAsync() : Task.Factory.StartNew(() => window.Dispatcher.Invoke(new Action(window.HideOverlay))));
}
else
{
var tcs = new System.Threading.Tasks.TaskCompletionSource <object>();
tcs.SetResult(null);
return(tcs.Task);
}
}
private static Task HandleOverlayOnHide(MetroDialogSettings settings, MetroWindow window)
{
if (window.metroActiveDialogContainer.Children.OfType <BaseMetroDialog>().Any <BaseMetroDialog>())
{
TaskCompletionSource <object> taskCompletionSource = new TaskCompletionSource <object>();
taskCompletionSource.SetResult(null);
return(taskCompletionSource.Task);
}
if (settings == null || settings.AnimateHide)
{
return(window.HideOverlayAsync());
}
return(Task.Factory.StartNew(() => window.Dispatcher.Invoke(new Action(window.HideOverlay))));
}
/// <summary>
/// Hides a visible Metro Dialog instance.
/// </summary>
/// <param name="window">The window with the dialog that is visible.</param>
/// <param name="dialog">The dialog instance to hide.</param>
/// <returns>A task representing the operation.</returns>
/// <exception cref="InvalidOperationException">
/// The <paramref name="dialog"/> is not visible in the window.
/// This happens if <see cref="ShowMetroDialogAsync"/> hasn't been called before.
/// </exception>
public static Task HideMetroDialogAsync(this MetroWindow window, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
if (!window.messageDialogContainer.Children.Contains(dialog))
{
throw new InvalidOperationException("The provided dialog is not visible in the specified window.");
}
window.SizeChanged -= dialog.SizeChangedHandler;
window.messageDialogContainer.Children.Remove(dialog); //remove the dialog from the container
return(window.HideOverlayAsync());
}
/// <summary>
/// 隐藏遮罩
/// </summary>
public static async Task HideOverlayAsync()
{
MetroWindow currentView = Application.Current.MainWindow as MetroWindow;
if (currentView == null && _Current != null)
{
ViewAware viewAware = (ViewAware)_Current;
currentView = (MetroWindow)viewAware.GetView();
}
else if (currentView == null)
{
return;
}
else
{
return;
}
await currentView.HideOverlayAsync();
}
/// <summary>
/// Creates a MessageDialog inside of the current window.
/// </summary>
/// <param name="title">The title of the MessageDialog.</param>
/// <param name="message">The message contained within the MessageDialog.</param>
/// <param name="style">The type of buttons to use.</param>
/// <returns>A task promising the result of which button was pressed.</returns>
public static Task <MessageDialogResult> ShowMessageAsync(this MetroWindow window, string title, string message, MessageDialogStyle style = MessageDialogStyle.Affirmative)
{
window.Dispatcher.VerifyAccess();
return(window.ShowOverlayAsync().ContinueWith(z =>
{
return (Task <MessageDialogResult>)window.Dispatcher.Invoke(new Func <Task <MessageDialogResult> >(() =>
{
//create the dialog control
MessageDialog dialog = new MessageDialog(window);
dialog.Message = message;
dialog.Title = title;
dialog.ButtonStyle = style;
dialog.AffirmativeButtonText = window.MetroDialogOptions.AffirmativeButtonText;
dialog.NegativeButtonText = window.MetroDialogOptions.NegativeButtonText;
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, dialog);
dialog.SizeChangedHandler = sizeHandler;
return dialog.WaitForLoadAsync().ContinueWith(x =>
{
return dialog.WaitForButtonPressAsync().ContinueWith(y =>
{
//once a button as been clicked, begin removing the dialog.
dialog.OnClose();
return ((Task)window.Dispatcher.Invoke(new Func <Task>(() =>
{
window.SizeChanged -= sizeHandler;
window.messageDialogContainer.Children.Remove(dialog); //remove the dialog from the container
return window.HideOverlayAsync();
//window.overlayBox.Visibility = System.Windows.Visibility.Hidden; //deactive the overlay effect
}))).ContinueWith(y3 => y).Unwrap();
}).Unwrap();
}).Unwrap();
}));
}).Unwrap());
}
/// <summary>
/// Creates a ProgressDialog inside of the current window.
/// </summary>
/// <param name="title">The title of the ProgressDialog.</param>
/// <param name="message">The message within the ProgressDialog.</param>
/// <param name="isCancelable">Determines if the cancel button is visible.</param>
/// <returns>A task promising the instance of ProgressDialogController for this operation.</returns>
public static Task <ProgressDialogController> ShowProgressAsync(this MetroWindow window, string title, string message, bool isCancelable = false)
{
window.Dispatcher.VerifyAccess();
return(window.ShowOverlayAsync().ContinueWith(z =>
{
return ((Task <ProgressDialogController>)window.Dispatcher.Invoke(new Func <Task <ProgressDialogController> >(() =>
{
//create the dialog control
ProgressDialog dialog = new ProgressDialog(window);
dialog.Message = message;
dialog.Title = title;
dialog.IsCancelable = isCancelable;
dialog.NegativeButtonText = window.MetroDialogOptions.NegativeButtonText;
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, dialog);
dialog.SizeChangedHandler = sizeHandler;
return dialog.WaitForLoadAsync().ContinueWith(x =>
{
return new ProgressDialogController(dialog, () =>
{
dialog.OnClose();
return (Task)window.Dispatcher.Invoke(new Func <Task>(() =>
{
window.SizeChanged -= sizeHandler;
window.messageDialogContainer.Children.Remove(dialog); //remove the dialog from the container
return window.HideOverlayAsync();
//window.overlayBox.Visibility = System.Windows.Visibility.Hidden; //deactive the overlay effect
}));
});
});
})));
}).Unwrap());
}
private static Task HandleOverlayOnHide(MetroDialogSettings settings, MetroWindow window)
{
return (settings == null || settings.UseAnimations ? window.HideOverlayAsync() : Task.Factory.StartNew(() => window.Dispatcher.Invoke(new Action(() => window.HideOverlay()))));
}
private static Task HandleOverlayOnHide(MetroDialogSettings settings, MetroWindow window)
{
return(settings == null || settings.AnimateHide ? window.HideOverlayAsync() : Task.Factory.StartNew(() => window.Dispatcher.Invoke(new Action(window.HideOverlay))));
}