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 void RemoveDialog(this MetroWindow window, BaseMetroDialog dialog)
{
if (window.metroActiveDialogContainer.Children.Contains(dialog))
{
window.metroActiveDialogContainer.Children.Remove(dialog); //remove the dialog from the container
// if there's an inactive dialog, bring it to the front
var dlg = window.metroInactiveDialogContainer.Children.Cast <UIElement>().LastOrDefault();
if (dlg != null)
{
window.metroInactiveDialogContainer.Children.Remove(dlg);
window.metroActiveDialogContainer.Children.Add(dlg);
}
}
else
{
window.metroInactiveDialogContainer.Children.Remove(dialog);
}
if (window.metroActiveDialogContainer.Children.Count == 0)
{
window.RestoreFocus();
}
window.SetValue(MetroWindow.IsAnyDialogOpenPropertyKey, window.metroActiveDialogContainer.Children.Count > 0);
}