private static object ComputeConfigDelegateResult(this IDynamicPanelDefinition definition, string delegatePropertyName, object view, object viewModel)
{
definition.AssertNotNull(nameof(definition));
view.AssertParameterNotNull(nameof(view));
viewModel.AssertParameterNotNull(nameof(viewModel));
var config = definition.GetConfig();
var configType = config.GetType().GetGenericArguments().Single();
var del = config.GetType().GetProperty(delegatePropertyName).GetValue(config).SafeCast <Delegate>();
if (configType == definition.View || configType == definition.IView)
{
return(del.DynamicInvoke(view));
}
else if (configType == definition.ViewModel || configType == definition.IViewModel)
{
return(del.DynamicInvoke(viewModel));
}
else
{
throw new Exception($"Internal Error : DynamicPanelDefinition<{definition.IView.Name}, {definition.View.Name}, {definition.IViewModel.Name}, {definition.ViewModel.Name}> : \n " +
$"DynamicPanelConfiguration Generic Type is not valid and has not been correctly asserted.");
}
}
internal static IDynamicPanelMetadata GetConfig(this IDynamicPanelDefinition definition)
{
definition.AssertNotNull(nameof(definition));
return(definition.Single(o => o.GetType().IsGenericType&&
o.GetType().GetGenericTypeDefinition() == typeof(DynamicPanelConfiguration <>)));
}
internal static PanelPlacement GetPlacement(this IDynamicPanelDefinition definition)
{
definition.AssertNotNull(nameof(definition));
var config = definition.GetConfig();
return(config.GetType().GetProperty("Placement").GetValue(config).SafeCast <PanelPlacement>());
}
internal static IMultipleSelection GetSelectionBinding(this IDynamicPanelDefinition definition, IUnityContainer container)
{
definition.AssertNotNull(nameof(definition));
definition.AssertParameterNotNull(nameof(container));
var selectionType = definition.GetSelectionBindingType();
var eventAggregator = container.Resolve <IEventAggregator>();
return(eventAggregator.GetEvent(selectionType).SafeCast <IMultipleSelection>());
}
public void RegisterDynamicPanelDefinition(IDynamicPanelDefinition definition)
{
AssertDynamicPanelDefinition(definition);
Container.RegisterType(definition.IViewModel, definition.ViewModel);
dynamicPanelDefinitions.Add(definition);
}
public bool IsRegistered(IDynamicPanelDefinition definition)
{
definition.AssertParameterNotNull(nameof(definition));
return(DynamicPanelDefinitions.Contains(definition));
}
private void AssertDynamicPanelDefinition(IDynamicPanelDefinition definition)
{
definition.AssertParameterNotNull(nameof(definition));
definition.IView.AssertNotNull($"IDynamicPanelDefinition.IView");
definition.View.AssertNotNull($"IDynamicPanelDefinition.View");
definition.IViewModel.AssertNotNull($"IDynamicPanelDefinition.IViewModel");
definition.ViewModel.AssertNotNull($"IDynamicPanelDefinition.ViewModel");
if (!definition.View.IsClass ||
!definition.View.IsSubclassOf(typeof(UserControl)) ||
definition.View.GetConstructors().Count() != 1 ||
definition.View.GetConstructors().Single().GetParameters().Any())
{
throw new Exception($"Error : {definition.View.Name} must be a class inheriting from user control with an empty constructor.");
}
if (!definition.View.Implements(definition.IView))
{
throw new Exception($"Error : {definition.View.Name} does not implement {definition.IView.Name}.");
}
if (!definition.ViewModel.Implements(definition.IViewModel))
{
throw new Exception($"Error : {definition.ViewModel.Name} does not implement {definition.IViewModel.Name}.");
}
if (!definition.ViewModel.Implements(typeof(IIdentifiable)))
{
throw new Exception($"Error : {definition.ViewModel.Name} does not implement IIdentifiable. This is required for the serialization of the" +
$"active panel layout collection.");
}
if (DynamicPanelDefinitions.Any(def => def.View == definition.View))
{
throw new Exception($"Error! A DynamicPanelDefinitions with the associated {definition.View.Name} View has already been registered.");
}
if (DynamicPanelDefinitions.Any(def => def.IView == definition.IView))
{
throw new Exception($"Error! A DynamicPanelDefinitions with the associated View interface {definition.IView.Name} has already been registered.");
}
if (DynamicPanelDefinitions.Any(def => def.ViewModel == definition.ViewModel))
{
throw new Exception($"Error! A DynamicPanelDefinitions with the associated ViewModel : {definition.ViewModel.Name} has already been registered.");
}
if (DynamicPanelDefinitions.Any(def => def.IViewModel == definition.IViewModel))
{
throw new Exception($"Error! A DynamicPanelDefinitions with the associated ViewModel interface : {definition.IViewModel.Name} has already been registered.");
}
MetadataAsserter.AssertMetadataCollection <IDynamicPanelDefinition, IDynamicPanelMetadata>(definition, $"DynamicPanelDefinition<{definition.IView.Name}, {definition.View.Name}, {definition.IViewModel.Name}, {definition.ViewModel.Name}>");
var config = definition.Single(o => o.GetType().IsGenericType&& o.GetType().GetGenericTypeDefinition() == typeof(DynamicPanelConfiguration <>));
var configGenericParamType = config.GetType().GetGenericArguments().Single();
if (!(configGenericParamType == definition.View ||
configGenericParamType == definition.IView ||
configGenericParamType == definition.ViewModel ||
configGenericParamType == definition.IViewModel))
{
throw new Exception($"Error : DynamicPanelDefinition<{definition.IView.Name}, {definition.View.Name}, {definition.IViewModel.Name}, {definition.ViewModel.Name}> : \n" +
$"The DynamicPanelConfiguration Generic Parameter must be of one of the following types : {definition.IView.Name}, {definition.View.Name}, {definition.IViewModel.Name}, {definition.ViewModel.Name}");
}
var selectionBindingType = definition.GetSelectionBindingRawType();
if (!(selectionBindingType == definition.ViewModel || selectionBindingType == definition.IViewModel))
{
throw new Exception($"Error : DynamicPanelDefinition<{definition.IView.Name}, {definition.View.Name}, {definition.IViewModel.Name}, {definition.ViewModel.Name}> : \n " +
$"The PanelSelectionBinding type does not match the viewModel Type.");
}
}
public DynamicPanelManager(IObjectInitializationService initSvc, IDynamicPanelDefinition definition)
: base(initSvc)
{
Definition = definition;
ViewModelSelection = Definition.GetSelectionBinding(Container);
}
internal static Type GetSelectionBindingRawType(this IDynamicPanelDefinition definition)
{
definition.AssertNotNull(nameof(definition));
return(definition.GetSelectionBindingType().GetBaseTypeGenericArgument(typeof(MultipleSelection <>)));
}
internal static Type GetSelectionBindingType(this IDynamicPanelDefinition definition)
{
definition.AssertNotNull(nameof(definition));
return(definition.OfType <PanelSelectionBinding>().Single().SelectionType);
}
internal static bool ComputeCanFloat(this IDynamicPanelDefinition definition, object view, object viewModel)
{
return(definition.ComputeConfigDelegateResult("CanFloat", view, viewModel).SafeCast <bool>());
}
internal static string ComputeTitle(this IDynamicPanelDefinition definition, object view, object viewModel)
{
return(definition.ComputeConfigDelegateResult("Title", view, viewModel).SafeCast <string>());
}
