public ShellViewModel(IConnectionService connectionService, IScreenFactory screenFactory,
IDialogService dialogService, IConcurrencyService concurrencyService,
IWorkspaceFactory workspaceFactory, ISelectionService selectionService)
{
DisplayName = "Reactivity Monitor";
var concreteDialogService = (DialogService)dialogService;
WhenActivated(disposables =>
{
connectionService.WhenConnectionChanges
.ObserveOnDispatcher()
.Select(GetViewModelForConnection)
.Subscribe(ActivateItem)
.DisposeWith(disposables);
this.ObservableForProperty(x => x.ActiveItem).Value()
.Select(item => item.WhenAnyValue(x => x.DisplayName))
.Switch()
.Select(itemTitle => $"{itemTitle} - Reactivity Monitor")
.Subscribe(title => DisplayName = title)
.DisposeWith(disposables);
this.WhenAnyValue(x => x.ActiveItem)
.Subscribe(item => selectionService.ChangeSelection(s => s.SetWorkspace((item as IHomeScreen)?.Workspace)))
.DisposeWith(disposables);
Disposable.Create(connectionService.Close).DisposeWith(disposables);
concreteDialogService.WhenDialogViewModelChanges
.ObserveOn(concurrencyService.DispatcherRxScheduler)
.Subscribe(vm => DialogViewModel = vm)
.DisposeWith(disposables);
});
CancelDialogCommand = ReactiveCommand.Create(concreteDialogService.CancelActiveDialog);
IScreen GetViewModelForConnection(IConnectionModel conn)
{
if (conn == null)
{
return(screenFactory.CreateConnectionScreen());
}
else
{
var workspace = workspaceFactory.CreateWorkspace(conn);
var homeScreen = screenFactory.CreateHomeScreen(workspace);
return(homeScreen);
}
}
}