private UIElement Locate(object viewModel, DependencyObject visualParent, object context)
{
var lCtx = new LocationContext(viewModel, visualParent, context);
var view = _locators.Select(l => l.LocateView(lCtx)).MaybeFirst();
return view.MustHaveValue(ConstructFailureElement(viewModel));
}
private UIElement Locate(object viewModel, DependencyObject visualParent, object context)
{
var lCtx = new LocationContext(viewModel, visualParent, context);
var view = _locators.Select(l => l.LocateView(lCtx)).MaybeFirst();
return(view.MustHaveValue(ConstructFailureElement(viewModel)));
}
public Maybe<UIElement> LocateView(LocationContext ctx)
{
var ui = _original(ctx.Model, ctx.VisualParent, ctx.CaliburnContext.Value);
if (ui is TextBlock && ((TextBlock)ui).Text.StartsWith("Cannot find view for"))
return Maybe<UIElement>.None;
return ui.ToMaybe();
}
Maybe <UIElement> IViewLocator.LocateView(LocationContext lCtx)
{
if (!_configuration.Matches(lCtx))
{
return(Maybe <UIElement> .None);
}
return(_configuration.Build(_container, lCtx).ToMaybe());
}
private UIElement FromDataTemplate(IContainer builder, LocationContext ctx)
{
var svc = builder.GetInstance<DataTemplateService>();
return svc.GetForObject(ctx.Model)
.Get(dt => dt.LoadContent())
.Cast<FrameworkElement>()
.Do(fw => fw.DataContext = ctx.Model)
.MustHaveValue(new TextBlock { Text = "Failed to find DataTemplate for " + ctx.Model.GetType().Name });
}
public Maybe <UIElement> LocateView(LocationContext ctx)
{
var ui = _original(ctx.Model, ctx.VisualParent, ctx.CaliburnContext.Value);
if (ui is TextBlock && ((TextBlock)ui).Text.StartsWith("Cannot find view for"))
{
return(Maybe <UIElement> .None);
}
return(ui.ToMaybe());
}
private UIElement CreateByBuilder(IContainer builder, LocationContext ctx)
{
var element = _builder(builder.GetInstance<XamlBuilder>(), ctx);
return element.Create();
}
public bool Matches(LocationContext locationContext)
{
return _match(locationContext);
}
public UIElement Build(IContainer builder, LocationContext ctx)
{
if (_builder != null)
return CreateByBuilder(builder, ctx);
return FromDataTemplate(builder, ctx);
}
Maybe<UIElement> IViewLocator.LocateView(LocationContext lCtx)
{
if (!_configuration.Matches(lCtx))
return Maybe<UIElement>.None;
return _configuration.Build(_container, lCtx).ToMaybe();
}
