public void PresentShouldInvokeCallbackOnClear()
{
var vm = GetViewModel <NavigableViewModelMock>();
IOperationCallback operationCallback = null;
ApplicationSettings.Platform = new PlatformInfo(PlatformType.WPF, new Version(0, 0));
OperationCallbackManager.Register = (type, o, arg3, arg4) =>
{
type.ShouldEqual(OperationType.TabNavigation);
operationCallback = arg3;
};
OperationCallbackManager.SetResult = (o, result) =>
{
result.Operation.ShouldEqual(OperationType.TabNavigation);
o.ShouldEqual(vm);
operationCallback.Invoke(result);
};
vm.OperationResult = true;
MultiViewModel viewModel = GetMultiViewModel();
IDynamicViewModelPresenter presenter = new DynamicMultiViewModelPresenter(viewModel,
OperationCallbackManager);
IAsyncOperation <bool?> task = presenter.TryShowAsync(vm, DataContext.Empty, null);
task.ShouldNotBeNull();
task.IsCompleted.ShouldBeFalse();
viewModel.Clear();
task.IsCompleted.ShouldBeTrue();
task.Result.Result.ShouldEqual(true);
operationCallback.ShouldNotBeNull();
}
public void PresentShouldInvokeCallbackOnRemove()
{
var vm = GetViewModel <NavigableViewModelMock>();
IOperationCallback operationCallback = null;
OperationCallbackManager.Register = (type, o, arg3, arg4) =>
{
type.ShouldEqual(OperationType.TabNavigation);
operationCallback = arg3;
};
OperationCallbackManager.SetResult = (o, result) =>
{
result.Operation.ShouldEqual(OperationType.TabNavigation);
o.ShouldEqual(vm);
operationCallback.Invoke(result);
};
vm.OperationResult = true;
MultiViewModel viewModel = GetMultiViewModel();
IDynamicViewModelPresenter presenter = new DynamicMultiViewModelPresenter(viewModel,
OperationCallbackManager, (model, context, arg3) => true);
IAsyncOperation <bool?> task = presenter.TryShowAsync(vm, DataContext.Empty, null);
task.ShouldNotBeNull();
task.IsCompleted.ShouldBeFalse();
viewModel.RemoveViewModelAsync(vm).Result.ShouldBeTrue();
task.IsCompleted.ShouldBeTrue();
task.Result.Result.ShouldEqual(true);
operationCallback.ShouldNotBeNull();
}
public Task ShowAsync(IOperationCallback callback, IDataContext context)
{
ViewModel.NotBeDisposed();
if (IsOpen)
{
throw ExceptionManager.WindowOpened();
}
var tcs = new TaskCompletionSource <object>();
RaiseNavigating(context, NavigationMode.New)
.TryExecuteSynchronously(task =>
{
try
{
if (!task.Result)
{
tcs.TrySetCanceled();
if (callback != null)
{
callback.Invoke(OperationResult.CreateCancelResult <bool?>(OperationType.WindowNavigation, ViewModel, context));
}
return;
}
if (context == null)
{
context = DataContext.Empty;
}
if (callback != null)
{
OperationCallbackManager.Register(OperationType.WindowNavigation, ViewModel, callback, context);
}
_isOpen = true;
ShowInternal(context, tcs);
}
catch (Exception e)
{
tcs.TrySetException(e);
if (callback != null)
{
callback.Invoke(OperationResult.CreateErrorResult <bool?>(OperationType.WindowNavigation, ViewModel, e, context));
}
}
});
return(tcs.Task);
}
/// <summary>
/// Navigates using the specified data context.
/// </summary>
/// <param name="callback">The specified callback, if any.</param>
/// <param name="context">
/// The specified <see cref="IDataContext" />.
/// </param>
public void Navigate(IOperationCallback callback, IDataContext context)
{
Should.NotBeNull(context, "context");
IViewModel viewModel = context.GetData(NavigationConstants.ViewModel);
if (viewModel == null)
{
throw new InvalidOperationException(string.Format("The '{0}' provider doesn't support the DataContext without navigation target.", GetType()));
}
if (ReferenceEquals(viewModel, CurrentViewModel))
{
if (callback != null)
{
callback.Invoke(OperationResult.CreateResult <bool?>(OperationType.Navigation, CurrentViewModel, true, context));
}
return;
}
string viewName = viewModel.GetViewName(context);
var parameters = context.GetData(NavigationConstants.Parameters);
var vmType = viewModel.GetType();
var mappingItem = FindMappingForViewModel(vmType, viewName);
object parameter;
if (parameters != null)
{
parameters = parameters.ToNonReadOnly();
parameters.Add(VmTypeConstant, vmType.AssemblyQualifiedName);
parameter = parameters;
}
else
{
parameter = vmType.AssemblyQualifiedName;
}
ThreadManager.InvokeOnUiThreadAsync(() =>
{
CancelCurrentNavigation(null);
_navigationTargetVm = viewModel;
_currentCallback = callback;
_navigationService.Navigate(mappingItem, parameter, context);
});
}
public Task NavigateAsync(IOperationCallback callback, IDataContext context)
{
Should.NotBeNull(context, "context");
IViewModel viewModel = context.GetData(NavigationConstants.ViewModel);
if (viewModel == null)
{
throw new InvalidOperationException(string.Format("The '{0}' provider doesn't support the DataContext without navigation target.", GetType()));
}
if (ReferenceEquals(viewModel, CurrentViewModel))
{
if (callback != null)
{
callback.Invoke(OperationResult.CreateResult <bool?>(OperationType.PageNavigation, CurrentViewModel, true, context));
}
return(Empty.Task);
}
string viewName = viewModel.GetViewName(context);
var vmType = viewModel.GetType();
var mappingItem = FindMappingForViewModel(vmType, viewName);
var id = Guid.NewGuid().ToString("n");
var parameter = GenerateNavigationParameter(vmType, id);
var tcs = new TaskCompletionSource <object>();
CurrentNavigationTask.TryExecuteSynchronously(_ =>
ThreadManager.InvokeOnUiThreadAsync(() =>
{
_navigatedTcs = tcs;
_navigationTargetVm = viewModel;
_currentCallback = callback;
_lastContext = context;
_currentOperationId = id;
if (_navigationService.Navigate(mappingItem, parameter, context))
{
ClearCacheIfNeed(context, viewModel);
}
}));
return(tcs.Task);
}
/// <summary>
/// Navigates using the specified data context.
/// </summary>
/// <param name="callback">The specified callback, if any.</param>
/// <param name="context">
/// The specified <see cref="IDataContext" />.
/// </param>
public Task NavigateAsync(IOperationCallback callback, IDataContext context)
{
Should.NotBeNull(context, "context");
IViewModel viewModel = context.GetData(NavigationConstants.ViewModel);
if (viewModel == null)
throw new InvalidOperationException(string.Format("The '{0}' provider doesn't support the DataContext without navigation target.", GetType()));
if (ReferenceEquals(viewModel, CurrentViewModel))
{
if (callback != null)
callback.Invoke(OperationResult.CreateResult<bool?>(OperationType.PageNavigation, CurrentViewModel, true, context));
return Empty.Task;
}
string viewName = viewModel.GetViewName(context);
var vmType = viewModel.GetType();
var mappingItem = FindMappingForViewModel(vmType, viewName);
var id = Guid.NewGuid().ToString("n");
var parameter = vmType.AssemblyQualifiedName + IdSeparator[0] + id;
var tcs = new TaskCompletionSource<object>();
CurrentNavigationTask.TryExecuteSynchronously(_ =>
ThreadManager.InvokeOnUiThreadAsync(() =>
{
_navigatedTcs = tcs;
_navigationTargetVm = viewModel;
_currentCallback = callback;
_lastContext = context;
_currentOperationId = id;
if (_navigationService.Navigate(mappingItem, parameter, context))
ClearCacheIfNeed(context, viewModel);
}));
return tcs.Task;
}
