void setupRx()
{
var scheduler = this.scheduler ?? RxApp.MainThreadScheduler;
var countAsBehavior = Observable.Concat(
Observable.Defer(() => Observable.Return(_NavigationStack.Count)),
NavigationStack.CountChanged);
NavigateBack =
ReactiveCommand.CreateFromObservable(() => {
NavigationStack.RemoveAt(NavigationStack.Count - 1);
return(Observables.Unit);
},
countAsBehavior.Select(x => x > 1),
scheduler);
Navigate = ReactiveCommand.CreateFromObservable <IRoutableViewModel, IRoutableViewModel>(x => {
var vm = x as IRoutableViewModel;
if (vm == null)
{
throw new Exception("Navigate must be called on an IRoutableViewModel");
}
NavigationStack.Add(vm);
return(Observable.Return(x));
},
outputScheduler: scheduler);
NavigateAndReset = ReactiveCommand.CreateFromObservable <IRoutableViewModel, IRoutableViewModel>(x => {
NavigationStack.Clear();
return(Navigate.Execute(x));
},
outputScheduler: scheduler);
CurrentViewModel = Observable.Concat(
Observable.Defer(() => Observable.Return(NavigationStack.LastOrDefault())),
NavigationStack.Changed.Select(_ => NavigationStack.LastOrDefault()));
}
public PullRequestDetailViewModel(
IPullRequestService pullRequestsService,
IPullRequestSessionManager sessionManager,
IModelServiceFactory modelServiceFactory,
IUsageTracker usageTracker,
ITeamExplorerContext teamExplorerContext,
IPullRequestFilesViewModel files,
ISyncSubmodulesCommand syncSubmodulesCommand,
IViewViewModelFactory viewViewModelFactory,
IGitService gitService,
IOpenIssueishDocumentCommand openDocumentCommand,
[Import(AllowDefault = true)] JoinableTaskContext joinableTaskContext)
{
Guard.ArgumentNotNull(pullRequestsService, nameof(pullRequestsService));
Guard.ArgumentNotNull(sessionManager, nameof(sessionManager));
Guard.ArgumentNotNull(modelServiceFactory, nameof(modelServiceFactory));
Guard.ArgumentNotNull(usageTracker, nameof(usageTracker));
Guard.ArgumentNotNull(teamExplorerContext, nameof(teamExplorerContext));
Guard.ArgumentNotNull(syncSubmodulesCommand, nameof(syncSubmodulesCommand));
Guard.ArgumentNotNull(viewViewModelFactory, nameof(viewViewModelFactory));
Guard.ArgumentNotNull(gitService, nameof(gitService));
Guard.ArgumentNotNull(openDocumentCommand, nameof(openDocumentCommand));
this.pullRequestsService = pullRequestsService;
this.sessionManager = sessionManager;
this.modelServiceFactory = modelServiceFactory;
this.usageTracker = usageTracker;
this.teamExplorerContext = teamExplorerContext;
this.syncSubmodulesCommand = syncSubmodulesCommand;
this.viewViewModelFactory = viewViewModelFactory;
this.gitService = gitService;
this.openDocumentCommand = openDocumentCommand;
JoinableTaskContext = joinableTaskContext ?? ThreadHelper.JoinableTaskContext;
Files = files;
Checkout = ReactiveCommand.CreateFromObservable(
DoCheckout,
this.WhenAnyValue(x => x.CheckoutState)
.Cast <CheckoutCommandState>()
.Select(x => x != null && x.IsEnabled));
Checkout.IsExecuting.Subscribe(x => isInCheckout = x);
SubscribeOperationError(Checkout);
Pull = ReactiveCommand.CreateFromObservable(
DoPull,
this.WhenAnyValue(x => x.UpdateState)
.Cast <UpdateCommandState>()
.Select(x => x != null && x.PullEnabled));
SubscribeOperationError(Pull);
Push = ReactiveCommand.CreateFromObservable(
DoPush,
this.WhenAnyValue(x => x.UpdateState)
.Cast <UpdateCommandState>()
.Select(x => x != null && x.PushEnabled));
SubscribeOperationError(Push);
SyncSubmodules = ReactiveCommand.CreateFromTask(
DoSyncSubmodules,
this.WhenAnyValue(x => x.UpdateState)
.Cast <UpdateCommandState>()
.Select(x => x != null && x.SyncSubmodulesEnabled));
SyncSubmodules.Subscribe(_ => Refresh().ToObservable());
SubscribeOperationError(SyncSubmodules);
OpenConversation = ReactiveCommand.Create(DoOpenConversation);
OpenOnGitHub = ReactiveCommand.Create(DoOpenDetailsUrl);
ShowReview = ReactiveCommand.Create <IPullRequestReviewSummaryViewModel>(DoShowReview);
ShowAnnotations = ReactiveCommand.Create <IPullRequestCheckViewModel>(DoShowAnnotations);
}