/// <summary>
/// Wraps the specified view-model to a specified type.
/// </summary>
/// <param name="viewModel">The specified view-model.</param>
/// <param name="wrapperType">The specified type to wrap.</param>
/// <param name="dataContext">The specified <see cref="IDataContext" />, if any.</param>
/// <returns>
/// An instance of <see cref="IViewModel" />.
/// </returns>
public IViewModel Wrap(IViewModel viewModel, Type wrapperType, IDataContext dataContext)
{
Should.NotBeNull(viewModel, "viewModel");
Should.NotBeNull(wrapperType, "wrapperType");
List <WrapperRegistration> list;
if (_registrations.TryGetValue(wrapperType, out list))
{
for (int i = 0; i < list.Count; i++)
{
WrapperRegistration registration = list[i];
if (registration.Condition(viewModel, dataContext))
{
return(WrapInternal(viewModel, registration.Type, dataContext));
}
}
}
var wrapper = WrapToDefaultWrapper(viewModel, wrapperType, dataContext);
if (wrapper == null)
{
throw ExceptionManager.WrapperTypeNotSupported(wrapperType);
}
return(wrapper);
}
public WeakReferenceableWrapper(IntPtr instance, WrapperRegistration reg)
{
var inst = Marshal.PtrToStructure <VtblPtr>(instance);
this.vtable = Marshal.PtrToStructure <Vtbl>(inst.Vtbl);
this.instance = instance;
Registration = reg;
}
/// <summary>
/// Creates the wrapper view model.
/// </summary>
protected override object WrapInternal(object item, WrapperRegistration wrapperRegistration,
IDataContext dataContext)
{
object result = base.WrapInternal(item, wrapperRegistration, dataContext);
//Changing default wrapper view to TabbedPage.
if (item is OrderEditorViewModel)
((IViewModel) result).Settings.Metadata.Add(NavigationConstants.ViewName, OrderViewName);
return result;
}
/// <summary>
/// Creates the wrapper view model.
/// </summary>
protected override object WrapInternal(object item, WrapperRegistration wrapperRegistration,
IDataContext dataContext)
{
object result = base.WrapInternal(item, wrapperRegistration, dataContext);
//Changing default wrapper view to TabbedPage.
if (item is OrderEditorViewModel)
{
((IViewModel)result).Settings.Metadata.Add(NavigationConstants.ViewName, OrderViewName);
}
return(result);
}
protected virtual object WrapInternal(object item, WrapperRegistration wrapperRegistration, IDataContext dataContext)
{
if (wrapperRegistration.WrapperFactory != null)
{
return(wrapperRegistration.WrapperFactory(item, dataContext));
}
var wrapperType = wrapperRegistration.Type;
#if PCL_WINRT
if (wrapperType.GetTypeInfo().IsGenericTypeDefinition)
#else
if (wrapperType.IsGenericTypeDefinition)
#endif
{ wrapperType = wrapperType.MakeGenericType(item.GetType()); }
var viewModel = item as IViewModel;
if (viewModel != null && typeof(IWrapperViewModel).IsAssignableFrom(wrapperType))
{
dataContext = dataContext.ToNonReadOnly();
if (!dataContext.Contains(InitializationConstants.ParentViewModel))
{
var parentViewModel = viewModel.GetParentViewModel();
if (parentViewModel != null)
{
dataContext.AddOrUpdate(InitializationConstants.ParentViewModel, parentViewModel);
}
}
var vm = (IWrapperViewModel)_viewModelProvider.GetViewModel(wrapperType, dataContext);
vm.Wrap(viewModel, dataContext);
return(vm);
}
#if PCL_WINRT
var constructor = wrapperType.GetTypeInfo()
.DeclaredConstructors
.FirstOrDefault(info => !info.IsStatic);
#else
var constructor = wrapperType
.GetConstructors(BindingFlags.Public | BindingFlags.Instance | BindingFlags.NonPublic)
.FirstOrDefault();
#endif
if (constructor == null)
{
return(null);
}
return(constructor.InvokeEx(item));
}
public object Wrap(object item, Type wrapperType, IDataContext dataContext)
{
Should.NotBeNull(item, "item");
Should.NotBeNull(wrapperType, "wrapperType");
if (wrapperType.IsInstanceOfType(item))
{
return(item);
}
dataContext = dataContext.ToNonReadOnly();
object wrapper = null;
List <WrapperRegistration> list;
if (_registrations.TryGetValue(wrapperType, out list))
{
dataContext.AddOrUpdate(ItemToWrapConstant, item);
var type = item.GetType();
for (int i = 0; i < list.Count; i++)
{
WrapperRegistration registration = list[i];
if (registration.Condition(type, dataContext))
{
wrapper = WrapInternal(item, registration, dataContext);
}
}
dataContext.Remove(ItemToWrapConstant);
}
if (wrapper == null)
{
wrapper = WrapToDefaultWrapper(item, wrapperType, dataContext);
}
if (wrapper == null)
{
throw ExceptionManager.WrapperTypeNotSupported(wrapperType);
}
return(wrapper);
}
public TestComWrappers(WrapperRegistration reg = WrapperRegistration.Local)
{
Registration = reg;
}
