// *** Private Methods ***
private void CreatePage(NavigationEntry entry)
{
// Create the View
IViewLifetimeContext viewLifetimeContext = viewFactory.CreateView(entry.PageName);
entry.ViewLifetimeContext = viewLifetimeContext;
// Activate the view model if it implements IActivatable<,>
// NB: Use reflection as we do not know the generic parameter types
object viewModel = entry.ViewLifetimeContext.ViewModel;
Type activatableInterface = ReflectionHelper.GetClosedGenericType(viewModel, typeof(IActivatable <,>));
if (activatableInterface != null)
{
// If required deserialize the arguments and state
entry.DeserializeData(activatableInterface.GenericTypeArguments[0], activatableInterface.GenericTypeArguments[1]);
// Activate the view model
MethodInfo activateMethod = activatableInterface.GetTypeInfo().GetDeclaredMethod("Activate");
activateMethod.Invoke(viewModel, new object[] { entry.Arguments, entry.State });
}
}
// *** Overriden base methods ***
protected override void DisplayPage(IViewLifetimeContext viewLifetimeContext)
{
DisplayedViews.Add(viewLifetimeContext as MockViewLifetimeContext);
}
public new void OnWindowClosing(IViewLifetimeContext viewLifetimeContext)
{
base.OnWindowClosing(viewLifetimeContext);
}
// *** Methods ***
public void DisplayPageDirect(IViewLifetimeContext viewLifetimeContext)
{
base.DisplayPage(viewLifetimeContext);
}
// *** Protected Methods ***
protected virtual void DisplayPage(IViewLifetimeContext viewLifetimeContext)
{
// Create a new content host for the page
ContentControl contentHost = new ContentControl()
{
Content = viewLifetimeContext.View,
HorizontalContentAlignment = HorizontalAlignment.Stretch,
VerticalContentAlignment = VerticalAlignment.Stretch
};
// Register for the window closing event to all disposal of the page and view-model
Window.Current.Closed += (sender, e) => OnWindowClosing(viewLifetimeContext);
// Display the page and activate the window
Window.Current.Content = contentHost;
Window.Current.Activate();
}
protected void OnWindowClosing(IViewLifetimeContext viewLifetimeContext)
{
// Call NavigatingFrom(...) methods
if (viewLifetimeContext.View is INavigationAware)
((INavigationAware)viewLifetimeContext.View).NavigatingFrom(NavigationMode.Back);
if (viewLifetimeContext.ViewModel is INavigationAware)
((INavigationAware)viewLifetimeContext.ViewModel).NavigatingFrom(NavigationMode.Back);
// Dispose of the view lifetime context
viewLifetimeContext.Dispose();
}
protected void OnWindowClosing(IViewLifetimeContext viewLifetimeContext)
{
if (viewLifetimeContext == null)
throw new ArgumentNullException(nameof(viewLifetimeContext));
// Call NavigatingFrom(...) methods
if (viewLifetimeContext.View is INavigationAware)
((INavigationAware)viewLifetimeContext.View).NavigatingFrom(PageNavigationMode.Back);
if (viewLifetimeContext.ViewModel is INavigationAware)
((INavigationAware)viewLifetimeContext.ViewModel).NavigatingFrom(PageNavigationMode.Back);
// Dispose of the view lifetime context
viewLifetimeContext.Dispose();
}
// *** Constructors ***
public PageDetails(IViewLifetimeContext viewLifetimeContext)
{
this.ViewLifetimeContext = viewLifetimeContext;
}
