public static void SetViewModelProperties(DependencyObject view, object parameter, object parentViewModel, IDocumentOwner documentOwner)
{
if (view == null)
{
return;
}
if (ViewModelExtensions.NotSetParameter == ViewModelExtensions.GetParameter(view) || parameter != null)
{
ViewModelExtensions.SetParameter(view, parameter);
}
if (ViewModelExtensions.GetParentViewModel(view) == null || parentViewModel != null)
{
ViewModelExtensions.SetParentViewModel(view, parentViewModel);
}
if (ViewModelExtensions.GetDocumentOwner(view) == null || documentOwner != null)
{
ViewModelExtensions.SetDocumentOwner(view, documentOwner);
}
}
public static void InitializeView(object view, object viewModel, object parameter, object parentViewModel, IDocumentOwner documentOwner = null)
{
if (documentOwner is DependencyObject)
{
documentOwner = DocumentOwnerWrapper.Create(documentOwner);
}
if (viewModel != null)
{
if (parameter != null)
{
viewModel.With(x => x as ISupportParameter).Do(x => x.Parameter = parameter);
}
if (parentViewModel != null)
{
viewModel.With(x => x as ISupportParentViewModel).Do(x => x.ParentViewModel = parentViewModel);
}
if (documentOwner != null)
{
viewModel.With(x => x as IDocumentContent).Do(x => x.DocumentOwner = documentOwner);
}
view.With(x => x as FrameworkElement).Do(x => x.DataContext = viewModel);
view.With(x => x as ContentPresenter).Do(x => x.Content = viewModel);
return;
}
if (!(view is DependencyObject))
{
return;
}
if (ViewModelExtensions.NotSetParameter == ViewModelExtensions.GetParameter((DependencyObject)view) || parameter != null)
{
ViewModelExtensions.SetParameter((DependencyObject)view, parameter);
}
if (ViewModelExtensions.GetParentViewModel((DependencyObject)view) == null || parentViewModel != null)
{
ViewModelExtensions.SetParentViewModel((DependencyObject)view, parentViewModel);
}
if (ViewModelExtensions.GetDocumentOwner((DependencyObject)view) == null || documentOwner != null)
{
ViewModelExtensions.SetDocumentOwner((DependencyObject)view, documentOwner);
}
}
void ViewPresenter_Loaded(object sender, RoutedEventArgs e)
{
if (VisualTreeHelper.GetChildrenCount(this) == 0)
{
return;
}
var child = VisualTreeHelper.GetChild(this, 0);
var parameter = ViewModelExtensions.GetParameter(this);
var parentViewModel = ViewModelExtensions.GetParentViewModel(this);
var documentOwner = ViewModelExtensions.GetDocumentOwner(this);
if (parameter != null)
{
ViewModelExtensions.SetParameter((DependencyObject)child, parameter);
}
if (parentViewModel != null)
{
ViewModelExtensions.SetParentViewModel((DependencyObject)child, parentViewModel);
}
if (documentOwner != null)
{
ViewModelExtensions.SetDocumentOwner((DependencyObject)child, documentOwner);
}
}
