| public WaitForLoadAsync ( ) : System.Threading.Tasks.Task | ||
| return | System.Threading.Tasks.Task | |
/// <summary>
/// Adds a Metro Dialog instance to the specified window and makes it visible.
/// <para>Note that this method returns as soon as the dialog is loaded and won't wait on a call of <see cref="HideMetroDialogAsync"/>.</para>
/// <para>You can still close the resulting dialog with <see cref="HideMetroDialogAsync"/>.</para>
/// </summary>
/// <param name="window">The owning window of the dialog.</param>
/// <param name="dialog">The dialog instance itself.</param>
/// <returns>A task representing the operation.</returns>
/// <exception cref="InvalidOperationException">The <paramref name="dialog"/> is already visible in the window.</exception>
public static Task ShowMetroDialogAsync(this MetroWindow window, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
if (window.metroDialogContainer.Children.Contains(dialog))
{
throw new InvalidOperationException("The provided dialog is already visible in the specified window.");
}
return(window.ShowOverlayAsync().ContinueWith(z =>
{
dialog.Dispatcher.Invoke(new Action(() =>
{
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, dialog);
dialog.SizeChangedHandler = sizeHandler;
}));
}).ContinueWith(y =>
((Task)dialog.Dispatcher.Invoke(new Func <Task>(() => dialog.WaitForLoadAsync().ContinueWith(x =>
{
dialog.OnShown();
if (DialogOpened != null)
{
DialogOpened(window, new DialogStateChangedEventArgs()
{
});
}
}))))));
}
/// <summary>
/// Adds a Metro Dialog instance to the specified window and makes it visible asynchronously.
/// If you want to wait until the user has closed the dialog, use <see cref="ShowMetroDialogAsyncAwaitable"/>
/// <para>You have to close the resulting dialog yourself with <see cref="HideMetroDialogAsync"/>.</para>
/// </summary>
/// <param name="window">The owning window of the dialog.</param>
/// <param name="dialog">The dialog instance itself.</param>
/// <param name="settings">An optional pre-defined settings instance.</param>
/// <returns>A task representing the operation.</returns>
/// <exception cref="InvalidOperationException">The <paramref name="dialog"/> is already visible in the window.</exception>
public static Task ShowMetroDialogAsync(this MetroWindow window, BaseMetroDialog dialog,
MetroDialogSettings settings = null)
{
window.Dispatcher.VerifyAccess();
if (window.metroActiveDialogContainer.Children.Contains(dialog) || window.metroInactiveDialogContainer.Children.Contains(dialog))
{
throw new InvalidOperationException("The provided dialog is already visible in the specified window.");
}
return(HandleOverlayOnShow(settings, window).ContinueWith(z =>
{
return (Task)window.Dispatcher.Invoke(new Func <Task>(() =>
{
settings = settings ?? window.MetroDialogOptions;
SetDialogFontSizes(settings, dialog);
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, dialog);
dialog.SizeChangedHandler = sizeHandler;
return dialog.WaitForLoadAsync().ContinueWith(x =>
{
dialog.OnShown();
if (DialogOpened != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogOpened(window, new DialogStateChangedEventArgs())));
}
});
}));
}).Unwrap());
}
public static Task <object> ShowBaseMetroDialog(this MetroWindow window, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
return(HandleOverlayOnShow(null, window).ContinueWith(z =>
{
return (Task <object>)window.Dispatcher.Invoke(new Func <Task <object> >(() =>
{
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.RemoveDialog(dialog);
return HandleOverlayOnHide(null, window);
}))).ContinueWith(y3 => y).Unwrap();
});
}).Unwrap();
}).Unwrap().Unwrap();
}));
}).Unwrap());
}
/// <summary>
/// Adds a Metro Dialog instance to the specified window and makes it visible.
/// </summary>
/// <param name="window">The owning window of the dialog.</param>
/// <param name="title">The title to be set in the dialog.</param>
/// <param name="dialog">The dialog instance itself.</param>
/// <returns>A task representing the operation.</returns>
public static Task ShowMetroDialogAsync(this MetroWindow window, string title, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
if (window.messageDialogContainer.Children.Contains(dialog))
throw new Exception("The provided dialog is already visible in the specified window.");
return window.ShowOverlayAsync().ContinueWith(z =>
{
dialog.Dispatcher.Invoke(new Action(() =>
{
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, title, dialog);
dialog.SizeChangedHandler = sizeHandler;
}));
}).ContinueWith(y =>
((Task)dialog.Dispatcher.Invoke(new Func<Task>(() => dialog.WaitForLoadAsync())))).Unwrap();
}
/// <summary>
/// Adds a Metro Dialog instance to the specified window and makes it visible.
/// </summary>
/// <param name="window">The owning window of the dialog.</param>
/// <param name="title">The title to be set in the dialog.</param>
/// <param name="dialog">The dialog instance itself.</param>
/// <returns>A task representing the operation.</returns>
/// <exception cref="InvalidOperationException">The <paramref name="dialog"/> is already visible in the window.</exception>
public static Task ShowMetroDialogAsync(this MetroWindow window, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
if (window.metroDialogContainer.Children.Contains(dialog))
throw new InvalidOperationException("The provided dialog is already visible in the specified window.");
return window.ShowOverlayAsync().ContinueWith(z =>
{
dialog.Dispatcher.Invoke(new Action(() =>
{
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, dialog);
dialog.SizeChangedHandler = sizeHandler;
}));
}).ContinueWith(y =>
((Task)dialog.Dispatcher.Invoke(new Func<Task>(() => dialog.WaitForLoadAsync().ContinueWith(x =>
{
dialog.OnShown();
if (DialogOpened != null)
{
DialogOpened(window, new DialogStateChangedEventArgs()
{
});
}
})))));
}
