/// <summary>
/// Occurs after navigation
/// </summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event args.</param>
protected virtual void OnNavigated(object sender, NavigationEventArgs e)
{
if (e.Uri.IsAbsoluteUri)
{
return;
}
ViewLocator.InitializeComponent(e.Content);
var viewModel = ViewModelLocator.LocateForView(e.Content);
if (viewModel == null)
{
return;
}
ViewModelBinder.Bind(viewModel, (DependencyObject)e.Content, null);
TryInjectQueryString(viewModel, e.Content);
var activator = viewModel as IActivate;
if (activator != null)
{
activator.Activate();
}
}
static void ModelChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (Bootstrapper.IsInDesignMode || e.NewValue == null || e.NewValue == e.OldValue)
{
return;
}
var fe = d as FrameworkElement;
if (fe == null)
{
return;
}
RoutedEventHandler handler = null;
handler = delegate
{
var target = e.NewValue;
var containerKey = e.NewValue as string;
if (containerKey != null)
{
target = IoC.GetInstance(null, containerKey);
}
d.SetValue(View.IsLoadedProperty, true);
ViewModelBinder.Bind(target, d, null);
fe.Loaded -= handler;
};
fe.Loaded += handler;
}
private static void OnContextChanged(DependencyObject targetLocation, DependencyPropertyChangedEventArgs e)
{
if (e.OldValue == e.NewValue)
{
return;
}
var model = GetModel(targetLocation);
if (model == null)
{
return;
}
var view = ViewLocator.LocateForModel(model, targetLocation, e.NewValue);
ViewModelBinder.Bind(model, view, e.NewValue);
SetContentProperty(targetLocation, view);
}
private static void OnModelChanged(DependencyObject targetLocation, DependencyPropertyChangedEventArgs args)
{
if (args.OldValue == args.NewValue)
{
return;
}
if (args.NewValue != null)
{
var context = GetContext(targetLocation);
var view = ViewLocator.LocateForModel(args.NewValue, targetLocation, context);
ViewModelBinder.Bind(args.NewValue, view, context);
SetContentProperty(targetLocation, view);
}
else
{
SetContentProperty(targetLocation, args.NewValue);
}
}