private void Close()
{
var p = new DialogParameters {
{ "Input", Input.Value }
};
if (RegionNavigationService == null)
{
RequestClose(new DialogResult(true, p));
}
else
{
RegionNavigationService?.RequestNavigate(nameof(ContentView), p);
}
}
public void WhenNavigationFailsBecauseActiveViewRejectsIt_ThenNavigationFailedIsRaised()
{
// Prepare
var region = new Region {
Name = "RegionName"
};
var view1Mock = new Mock <View>();
view1Mock
.As <IConfirmRegionNavigationRequest>()
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <INavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <INavigationContext, Action <bool> >((nc, c) => c(false))
.Verifiable();
var view1 = view1Mock.Object;
var view2 = new StackLayout();
region.Add(view1);
region.Add(view2);
region.Activate(view1);
var navigationUri = new Uri(view2.GetType().Name, UriKind.Relative);
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
var contentLoaderMock = new Mock <IRegionNavigationContentLoader>();
contentLoaderMock
.Setup(cl => cl.LoadContent(region, It.IsAny <INavigationContext>()))
.Returns(view2);
var container = containerMock.Object;
var contentLoader = contentLoaderMock.Object;
var journal = Mock.Of <IRegionNavigationJournal>();
var target = new RegionNavigationService(container, contentLoader, journal)
{
Region = region
};
RegionNavigationFailedEventArgs eventArgs = null;
target.NavigationFailed += delegate(object sender, RegionNavigationFailedEventArgs e)
{
if (sender == target)
{
eventArgs = e;
}
};
// Act
bool?isNavigationSuccessful = null;
target.RequestNavigate(navigationUri, nr => isNavigationSuccessful = nr.Result);
// Verify
view1Mock.VerifyAll();
Assert.False(isNavigationSuccessful.Value);
Assert.NotNull(eventArgs);
Assert.Null(eventArgs.Error);
}
public void WhenNavigationFailsBecauseDataContextForActiveViewRejectsIt_ThenNavigationFailedIsRaised()
{
// Prepare
var region = new Region {
Name = "RegionName"
};
var viewModel1Mock = new Mock <IConfirmNavigationRequest>();
viewModel1Mock
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <NavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <NavigationContext, Action <bool> >((nc, c) => c(false))
.Verifiable();
var view1Mock = new Mock <FrameworkElement>();
var view1 = view1Mock.Object;
view1.DataContext = viewModel1Mock.Object;
var view2 = new object();
region.Add(view1);
region.Add(view2);
region.Activate(view1);
var navigationUri = new Uri(view2.GetType().Name, UriKind.Relative);
var serviceLocatorMock = new Mock <IServiceLocator>();
serviceLocatorMock
.Setup(x => x.GetInstance <IRegionNavigationJournalEntry>())
.Returns(new RegionNavigationJournalEntry());
var contentLoaderMock = new Mock <IRegionNavigationContentLoader>();
contentLoaderMock
.Setup(cl => cl.LoadContent(region, It.IsAny <NavigationContext>()))
.Returns(view2);
var serviceLocator = serviceLocatorMock.Object;
var contentLoader = contentLoaderMock.Object;
var journal = new Mock <IRegionNavigationJournal>().Object;
var target = new RegionNavigationService(serviceLocator, contentLoader, journal);
target.Region = region;
RegionNavigationFailedEventArgs eventArgs = null;
target.NavigationFailed += delegate(object sender, RegionNavigationFailedEventArgs e)
{
if (sender == target)
{
eventArgs = e;
}
};
// Act
bool?isNavigationSuccessful = null;
target.RequestNavigate(navigationUri, nr => isNavigationSuccessful = nr.Result);
// Verify
viewModel1Mock.VerifyAll();
Assert.IsFalse(isNavigationSuccessful.Value);
Assert.IsNotNull(eventArgs);
Assert.IsNull(eventArgs.Error);
}
public void WhenNavigating_ThenNavigationRequestQueriesForVetoOnAllActiveViewsIfAllSucceed()
{
// Prepare
var region = new Region();
var view1Mock = new Mock <IConfirmNavigationRequest>();
view1Mock
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <NavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <NavigationContext, Action <bool> >((nc, c) => c(true))
.Verifiable();
var view1 = view1Mock.Object;
region.Add(view1);
region.Activate(view1);
var view2Mock = new Mock <IConfirmNavigationRequest>();
var view2 = view2Mock.Object;
region.Add(view2);
var view3Mock = new Mock <INavigationAware>();
var view3 = view3Mock.Object;
region.Add(view3);
region.Activate(view3);
var view4Mock = new Mock <IConfirmNavigationRequest>();
view4Mock
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <NavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <NavigationContext, Action <bool> >((nc, c) => c(true))
.Verifiable();
var view4 = view4Mock.Object;
region.Add(view4);
region.Activate(view4);
var navigationUri = new Uri(view1.GetType().Name, UriKind.Relative);
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
IContainerExtension container = containerMock.Object;
RegionNavigationContentLoader contentLoader = new Mock <RegionNavigationContentLoader>(container).Object;
IRegionNavigationJournal journal = new Mock <IRegionNavigationJournal>().Object;
RegionNavigationService target = new RegionNavigationService(container, contentLoader, journal)
{
Region = region
};
// Act
target.RequestNavigate(navigationUri, nr => { });
// Verify
view1Mock.VerifyAll();
view2Mock.Verify(ina => ina.ConfirmNavigationRequest(It.IsAny <NavigationContext>(), It.IsAny <Action <bool> >()), Times.Never());
view3Mock.VerifyAll();
view4Mock.VerifyAll();
}
public OtherContentViewModel()
{
BackCommand = new DelegateCommand(() => RegionNavigationService.Journal.GoBack(), () => RegionNavigationService?.Journal?.CanGoBack ?? false);
ForwardCommand = new DelegateCommand(() => RegionNavigationService.Journal.GoForward(), () => RegionNavigationService?.Journal?.CanGoForward ?? false);
ContentCommand = new DelegateCommand(() => RegionNavigationService.RequestNavigate(nameof(ContentView)));
}