/// <summary>
/// Configure <see cref="IDialogWindow"/> and <see cref="IDialogAware"/> events.
/// </summary>
/// <param name="dialogWindow">The hosting window.</param>
/// <param name="callback">The action to perform when the dialog is closed.</param>
internal static void ConfigureDialogWindowEvents(this IDialogWindow dialogWindow, Action <IDialogResult> callback)
{
Action <IDialogResult> requestCloseHandler = null;
requestCloseHandler = (o) =>
{
dialogWindow.Result = o;
dialogWindow.Close();
};
RoutedEventHandler loadedHandler = null;
loadedHandler = (o, e) =>
{
dialogWindow.Loaded -= loadedHandler;
dialogWindow.GetDialogViewModel().RequestClose += requestCloseHandler;
};
dialogWindow.Loaded += loadedHandler;
CancelEventHandler closingHandler = null;
closingHandler = (o, e) =>
{
if (!dialogWindow.GetDialogViewModel().CanCloseDialog())
{
e.Cancel = true;
}
};
dialogWindow.Closing += closingHandler;
EventHandler closedHandler = null;
closedHandler = (o, e) =>
{
dialogWindow.Closed -= closedHandler;
dialogWindow.Closing -= closingHandler;
dialogWindow.GetDialogViewModel().RequestClose -= requestCloseHandler;
dialogWindow.GetDialogViewModel().OnDialogClosed();
if (dialogWindow.Result == null)
{
dialogWindow.Result = new DialogResult();
}
callback?.Invoke(dialogWindow.Result);
dialogWindow.DataContext = null;
dialogWindow.Content = null;
};
dialogWindow.Closed += closedHandler;
}
/// <summary>
/// Configure <see cref="IDialogWindow"/> and <see cref="IDialogAware"/> events.
/// </summary>
/// <param name="dialogWindow">The hosting window.</param>
/// <param name="callback">The action to perform when the dialog is closed.</param>
protected virtual void ConfigureDialogWindowEvents(IDialogWindow dialogWindow, Action <IDialogResult> callback)
{
void requestCloseHandler(IDialogResult o)
{
dialogWindow.Result = o;
dialogWindow.Close();
}
void loadedHandler(object o, RoutedEventArgs e)
{
dialogWindow.Loaded -= loadedHandler;
dialogWindow.GetDialogViewModel().RequestClose += requestCloseHandler;
}
dialogWindow.Loaded += loadedHandler;
void closingHandler(object o, CancelEventArgs e)
{
if (!dialogWindow.GetDialogViewModel().CanCloseDialog())
{
e.Cancel = true;
}
}
dialogWindow.Closing += closingHandler;
void closedHandler(object o, EventArgs e)
{
dialogWindow.Closed -= closedHandler;
dialogWindow.Closing -= closingHandler;
dialogWindow.GetDialogViewModel().RequestClose -= requestCloseHandler;
dialogWindow.GetDialogViewModel().OnDialogClosed();
if (dialogWindow.Result == null)
{
dialogWindow.Result = new DialogResult();
}
callback?.Invoke(dialogWindow.Result);
dialogWindow.DataContext = null;
dialogWindow.Content = null;
}
dialogWindow.Closed += closedHandler;
}