private static IEnumerable <IView> GetViewsToBind(
PresenterBindingAttribute attribute,
IView view,
IEnumerable <IView> pendingViews)
{
Debug.Assert(attribute != null);
Debug.Assert(view != null);
Debug.Assert(pendingViews != null);
Trace.TraceInformation(
"[AttributeBasedPresenterDiscoveryStrategy] Found presenter '{0}' for view '{1}', origin='{2}', binding mode='{3}'.",
attribute.PresenterType.FullName,
attribute.ViewType?.FullName,
attribute.Origin?.FullName,
attribute.BindingMode.ToString());
switch (attribute.BindingMode)
{
case PresenterBindingMode.Default:
return(new[] { view });
case PresenterBindingMode.SharedPresenter:
return(pendingViews.Where(_ => attribute.ViewType?.IsInstanceOfType(_) ?? false));
default:
throw new ControlFlowException();
}
}
static IEnumerable<IView> GetViewInstancesToBind(IEnumerable<IView> pendingViewInstances, IView viewInstance, Type viewType, ICollection<string> messages, PresenterBindingAttribute attribute)
{
IEnumerable<IView> viewInstancesToBind;
switch (attribute.BindingMode)
{
case BindingMode.Default:
viewInstancesToBind = new[] {viewInstance};
break;
case BindingMode.SharedPresenter:
viewInstancesToBind = pendingViewInstances
.Where(v => attribute.ViewType.IsAssignableFrom(viewType))
.ToArray();
messages.Add(string.Format(
CultureInfo.InvariantCulture,
"including {0} more view instances in the binding because the binding mode is {1} and they are compatible with the view type {2}",
viewInstancesToBind.Count() - 1,
attribute.BindingMode,
attribute.ViewType.FullName
));
break;
default:
throw new NotSupportedException(string.Format(CultureInfo.InvariantCulture, "Binding mode {0} is not supported", attribute.BindingMode));
}
return viewInstancesToBind;
}
internal static IEnumerable <IView> GetViewInstancesToBind(IEnumerable <IView> pendingViewInstances, IView viewInstance, Type viewType, ICollection <string> messages, PresenterBindingAttribute attribute)
{
IEnumerable <IView> viewInstancesToBind;
switch (attribute.BindingMode)
{
case BindingMode.Default:
viewInstancesToBind = new[] { viewInstance };
break;
case BindingMode.SharedPresenter:
viewInstancesToBind = pendingViewInstances
.Where(viewType.IsInstanceOfType)
.ToArray();
messages.Add(string.Format(
CultureInfo.InvariantCulture,
"including {0} more view instances in the binding because the binding mode is {1} and they are compatible with the view type {2}",
viewInstancesToBind.Count() - 1,
attribute.BindingMode,
attribute.ViewType.FullName
));
break;
default:
throw new NotSupportedException(string.Format(CultureInfo.InvariantCulture, "Binding mode {0} is not supported", attribute.BindingMode));
}
return(viewInstancesToBind);
}
public void PresenterBindingAttribute_Ctor_SetsBindingModeToDefault()
{
var attribute = new PresenterBindingAttribute(typeof(TestPresenter));
Assert.AreEqual(BindingMode.Default, attribute.BindingMode);
}
public void PresenterBindingAttribute_Ctor_SetsViewTypeToNull()
{
var attribute = new PresenterBindingAttribute(typeof(TestPresenter));
Assert.IsNull(attribute.ViewType);
}
public void PresenterBindingAttribute_Ctor_SetsPresenterType()
{
var attribute = new PresenterBindingAttribute(typeof(TestPresenter));
Assert.AreEqual(typeof(TestPresenter), attribute.PresenterType);
}
