/// <summary>
/// Occurs after navigation
/// </summary>
/// <param name="sender"> The event sender. </param>
/// <param name="e"> The event args. </param>
protected virtual async void OnNavigated(object sender, NavigationEventArgs e)
{
if (e.Uri.IsAbsoluteUri || e.Content == null)
{
return;
}
ViewLocator.InitializeComponent(e.Content);
var viewModel = ViewModelLocator.LocateForView(e.Content);
if (viewModel == null)
{
return;
}
var page = e.Content as Page;
if (page == null)
{
throw new ArgumentException("View '" + e.Content.GetType().FullName + "' should inherit from Page or one of its descendents.");
}
if (treatViewAsLoaded)
{
page.SetValue(View.IsLoadedProperty, true);
}
TryInjectParameters(viewModel, e.ExtraData);
ViewModelBinder.Bind(viewModel, page, null);
if (viewModel is IActivate activator)
{
await activator.ActivateAsync();
}
GC.Collect();
}
/// <summary>
/// Locates the view model, locates the associate view, binds them and shows it as the root view.
/// </summary>
/// <param name="viewModelType">The view model type.</param>
protected void DisplayRootViewFor(Type viewModelType)
{
var viewModel = IoC.GetInstance(viewModelType, null);
var view = ViewLocator.LocateForModel(viewModel, null, null);
var page = view as Page;
if (page == null)
{
throw new NotSupportedException(String.Format("{0} does not inherit from {1}.", view.GetType(), typeof(Page)));
}
ViewModelBinder.Bind(viewModel, view, null);
var activator = viewModel as IActivate;
if (activator != null)
{
activator.Activate();
}
MainPage = page;
}
/// <summary>
/// Shows a popup at the current mouse position.
/// </summary>
/// <param name="rootModel">The root model.</param>
/// <param name="context">The view context.</param>
/// <param name="settings">The optional popup settings.</param>
public virtual async Task ShowPopupAsync(object rootModel, object context = null, IDictionary <string, object> settings = null)
{
var popup = CreatePopup(rootModel, settings);
var view = ViewLocator.LocateForModel(rootModel, popup, context);
popup.Child = view;
popup.SetValue(View.IsGeneratedProperty, true);
ViewModelBinder.Bind(rootModel, popup, null);
Action.SetTargetWithoutContext(view, rootModel);
if (rootModel is IActivate activator)
{
await activator.ActivateAsync();
}
if (rootModel is IDeactivate deactivator)
{
popup.Closed += async(s, e) => await deactivator.DeactivateAsync(true);
}
popup.IsOpen = true;
popup.CaptureMouse();
}
/// <summary>
/// Binds the view model.
/// </summary>
/// <param name="view">The view.</param>
/// <param name="viewModel">The view model.</param>
protected virtual async Task BindViewModel(DependencyObject view, object viewModel = null)
{
ViewLocator.InitializeComponent(view);
viewModel = viewModel ?? ViewModelLocator.LocateForView(view);
if (viewModel == null)
{
return;
}
if (treatViewAsLoaded)
{
view.SetValue(View.IsLoadedProperty, true);
}
TryInjectParameters(viewModel, CurrentParameter);
ViewModelBinder.Bind(viewModel, view, null);
if (viewModel is IActivate activator)
{
await activator.ActivateAsync();
}
}
