/// <summary>
/// Lazy initialization of the window
/// </summary>
/// <returns>Actual view</returns>
private DialogWindow GetWindow()
{
lock (LockObject)
{
if (window != null)
{
return window;
}
// Set owner to MainWindow in order to prevent that MainWindow hides the DialogWindow upon minimizing the application
window = new DialogWindow {Owner = Application.Current.MainWindow};
window.Closed += (sender, e) =>
{
if (Closed != null)
{
Closed(sender, e);
}
window = null;
};
window.Closing += (sender, e) =>
{
if (Closing != null)
{
Closing(sender, e);
}
};
return window;
}
}
public void Close(bool dialogResult)
{
if (dialogResult)
DialogResult = true;
GetWindow().Close();
window = null;
}
private Window GetWindow(ViewModelBase viewModel, bool isDialogWindow)
{
lock (lockObject)
{
var window = openedWindows.SingleOrDefault(w => w.DataContext == viewModel);
if (window != null)
{
window.WindowState = WindowState.Normal;
window.Activate();
return window;
}
if (isDialogWindow)
{
// Set window owner in order to prevent that it becomes hidden when minimizing the application
window = new DialogWindow
{
Owner = openedWindows.Any() ? openedWindows.Last() : Application.Current.MainWindow
};
}
else
{
// Doesn't need a window owner since it's shown in the taskbar
window = new StandardWindow();
}
openedWindows.Add(window);
window.Closed += (sender, e) =>
{
if (Closed != null)
{
Closed(sender, e);
}
openedWindows.Remove(window);
window = null;
if (!openedWindows.Any() && Application.Current.MainWindow != null)
{
Application.Current.MainWindow.Activate();
}
};
window.Closing += (sender, e) =>
{
if (Closing != null)
{
Closing(sender, e);
}
};
return window;
}
}
