public SearchViewModel(IScreen hostScreen, ILoginMethods loginMethods)
{
HostScreen = hostScreen;
SearchResults = new ReactiveCollection<ISongTileViewModel>();
var playApi = loginMethods.CurrentAuthenticatedClient;
if (playApi == null) {
hostScreen.Router.Navigate.Execute(RxApp.GetService<IWelcomeViewModel>());
return;
}
var canSearch = this.WhenAny(x => x.SearchQuery, x => !String.IsNullOrWhiteSpace(x.Value));
PerformSearch = new ReactiveAsyncCommand(canSearch);
this.ObservableForProperty(x => x.SearchQuery)
.Throttle(TimeSpan.FromMilliseconds(700), RxApp.DeferredScheduler)
.InvokeCommand(PerformSearch);
var searchResults = PerformSearch.RegisterAsyncObservable(_ => playApi.Search(SearchQuery));
SearchResults = searchResults
.Do(_ => SearchResults.Clear())
.SelectMany(list => list.ToObservable())
.LoggedCatch(this, Observable.Empty<Song>())
.CreateCollection(x => (ISongTileViewModel) new SongTileViewModel(x, playApi));
PerformSearch.ItemsInflight.StartWith(0)
.Select(x => x > 0 ? Visibility.Visible : Visibility.Collapsed)
.ToProperty(this, x => x.SearchBusySpinner);
PerformSearch.ThrownExceptions.Subscribe(_ => { });
GoBack = new ReactiveCommand();
GoBack.InvokeCommand(hostScreen.Router.NavigateBack);
}
public static void LoadAuthenticatedUserFromCache(ILoginMethods login, ISecureBlobCache loginCache)
{
Observable.Zip(loginCache.GetObjectAsync <string>("BaseUrl"), loginCache.GetObjectAsync <string>("Token"),
(url, name) => new Tuple <string, string>(url, name))
.Catch(Observable.Return <Tuple <string, string> >(null))
.Subscribe(x => {
});
}
public WelcomeViewModel(
IScreen screen,
ILoginMethods loginMethods,
[Named("connectToServer")][Optional] Func <string, string, IObservable <Unit> > connectToServerMock)
{
HostScreen = screen;
var canOk = this.WhenAny(x => x.BaseUrl, x => x.Token,
(b, u) => isValidUrl(b.Value) && !String.IsNullOrWhiteSpace(u.Value));
OkButton = new ReactiveCommand(canOk);
OpenTokenPage = new ReactiveCommand(this.WhenAny(x => x.BaseUrl, x => isValidUrl(x.Value)));
var connectToServer = connectToServerMock ?? ConnectToPlay;
Observable.Defer(() => OkButton.SelectMany(_ => connectToServer(BaseUrl, Token)))
.Select(_ => true).Catch(Observable.Return(false))
.Repeat()
.Subscribe(result => {
if (result == false)
{
UserError.Throw("Couldn't connect to Play instance.");
return;
}
loginMethods.SaveCredentials(BaseUrl, Token);
screen.Router.NavigateBack.Execute(null);
});
OpenTokenPage.Subscribe(_ => Process.Start(String.Format("{0}/token", BaseUrl)));
var error = new Subject <string>();
UserError.RegisterHandler(ex => {
error.OnNext(ex.ErrorMessage);
return(Observable.Return(RecoveryOptionResult.CancelOperation));
});
this.WhenAny(x => x.Token, x => x.BaseUrl, (_, __) => Unit.Default)
.Subscribe(_ => error.OnNext(null));
error.ToProperty(this, x => x.ErrorMessage);
}
public WelcomeViewModel(
IScreen screen,
ILoginMethods loginMethods,
[Named("connectToServer")] [Optional] Func<string, string, IObservable<Unit>> connectToServerMock)
{
HostScreen = screen;
var canOk = this.WhenAny(x => x.BaseUrl, x => x.Token,
(b, u) => isValidUrl(b.Value) && !String.IsNullOrWhiteSpace(u.Value));
OkButton = new ReactiveCommand(canOk);
OpenTokenPage = new ReactiveCommand(this.WhenAny(x => x.BaseUrl, x => isValidUrl(x.Value)));
var connectToServer = connectToServerMock ?? ConnectToPlay;
Observable.Defer(() => OkButton.SelectMany(_ => connectToServer(BaseUrl, Token)))
.Select(_ => true).Catch(Observable.Return(false))
.Repeat()
.Subscribe(result => {
if (result == false) {
UserError.Throw("Couldn't connect to Play instance.");
return;
}
loginMethods.SaveCredentials(BaseUrl, Token);
screen.Router.NavigateBack.Execute(null);
});
OpenTokenPage.Subscribe(_ => Process.Start(String.Format("{0}/token", BaseUrl)));
var error = new Subject<string>();
UserError.RegisterHandler(ex => {
error.OnNext(ex.ErrorMessage);
return Observable.Return(RecoveryOptionResult.CancelOperation);
});
this.WhenAny(x => x.Token, x => x.BaseUrl, (_, __) => Unit.Default)
.Subscribe(_ => error.OnNext(null));
error.ToProperty(this, x => x.ErrorMessage);
}
public SearchViewModel(IScreen hostScreen, ILoginMethods loginMethods, [Named("UserAccount")] IBlobCache userCache)
{
HostScreen = hostScreen;
SearchResults = new ReactiveCollection <ISongTileViewModel>();
var playApi = loginMethods.CurrentAuthenticatedClient;
if (playApi == null)
{
hostScreen.Router.Navigate.Execute(RxApp.GetService <IWelcomeViewModel>());
return;
}
var canSearch = this.WhenAny(x => x.SearchQuery, x => !String.IsNullOrWhiteSpace(x.Value));
PerformSearch = new ReactiveAsyncCommand(canSearch);
this.ObservableForProperty(x => x.SearchQuery)
.Throttle(TimeSpan.FromMilliseconds(700), RxApp.DeferredScheduler)
.InvokeCommand(PerformSearch);
var searchResults = PerformSearch.RegisterAsyncObservable(_ =>
userCache.GetOrFetchObject(
"search__" + SearchQuery,
() => playApi.Search(SearchQuery),
RxApp.TaskpoolScheduler.Now + TimeSpan.FromMinutes(1.0)));
SearchResults = searchResults
.Do(_ => SearchResults.Clear())
.SelectMany(list => list.ToObservable())
.LoggedCatch(this, Observable.Empty <Song>())
.CreateCollection(x => (ISongTileViewModel) new SongTileViewModel(x, playApi));
PerformSearch.ItemsInflight.StartWith(0)
.Select(x => x > 0 ? Visibility.Visible : Visibility.Hidden)
.ToProperty(this, x => x.SearchBusySpinner);
PerformSearch.ThrownExceptions.Subscribe(_ => { });
GoBack = new ReactiveCommand();
GoBack.InvokeCommand(hostScreen.Router.NavigateBack);
}
public PlayViewModel(IScreen screen, ILoginMethods loginMethods)
{
HostScreen = screen;
TogglePlay = new ReactiveCommand();
Logout = new ReactiveCommand();
Search = new ReactiveCommand();
// XXX: God I hate that I have to do this
Observable.Never<Song>().ToProperty(this, x => x.CurrentSong);
Observable.Never<IEnumerable<Song>>().ToProperty(this, x => x.Queue);
Observable.Never<IEnumerable<SongTileViewModel>>().ToProperty(this, x => x.AllSongs);
this.WhenNavigatedTo(() => {
var playApi = loginMethods.CurrentAuthenticatedClient;
if (playApi == null) {
loginMethods.EraseCredentialsAndNavigateToLogin();
return null;
}
// Get the Listen URL or die trying
Observable.Defer(playApi.ListenUrl)
.Timeout(TimeSpan.FromSeconds(30), RxApp.TaskpoolScheduler)
.Retry()
.ToProperty(this, x => x.ListenUrl);
var pusherSubj = playApi.ConnectToSongChangeNotifications()
.Retry(25)
.Multicast(new Subject<Unit>());
var shouldUpdate = Observable.Defer(() =>
pusherSubj.Take(1).Timeout(TimeSpan.FromMinutes(2.0), RxApp.TaskpoolScheduler)).Catch(Observable.Return(Unit.Default))
.Repeat()
.StartWith(Unit.Default)
.Multicast(new Subject<Unit>());
var nowPlaying = shouldUpdate.SelectMany(_ => playApi.NowPlaying()).Multicast(new Subject<Song>());
shouldUpdate.SelectMany(_ => playApi.Queue())
.Catch(Observable.Return(Enumerable.Empty<Song>()))
.ToProperty(this, x => x.Queue);
nowPlaying
.Catch(Observable.Return(new Song()))
.ToProperty(this, x => x.CurrentSong);
this.WhenAny(x => x.CurrentSong, x => x.Queue,
(song, queue) => (queue.Value != null && song.Value != null ? queue.Value.StartWith(song.Value) : Enumerable.Empty<Song>()))
.Do(x => this.Log().Info("Found {0} items", x.Count()))
.Select(x => x.Select(y => new SongTileViewModel(y, loginMethods.CurrentAuthenticatedClient) { QueueSongVisibility = Visibility.Collapsed }))
.ToProperty(this, x => x.AllSongs);
MessageBus.Current.RegisterMessageSource(this.WhenAny(x => x.IsPlaying, x => x.Value), "IsPlaying");
var ret = new CompositeDisposable();
ret.Add(nowPlaying.Connect());
ret.Add(shouldUpdate.Connect());
ret.Add(pusherSubj.Connect());
return ret;
});
Logout.Subscribe(_ => loginMethods.EraseCredentialsAndNavigateToLogin());
Search.Subscribe(_ => screen.Router.Navigate.Execute(RxApp.GetService<ISearchViewModel>()));
}
public UsersController(IUserMethods userMethods, ILoginMethods loginMethods)
{
_userMethods = userMethods;
_loginMethods = loginMethods;
}
public PlayViewModel(IScreen screen, ILoginMethods loginMethods)
{
HostScreen = screen;
TogglePlay = new ReactiveCommand();
Logout = new ReactiveCommand();
Search = new ReactiveCommand();
// XXX: God I hate that I have to do this
Observable.Never <Song>().ToProperty(this, x => x.CurrentSong);
Observable.Never <IEnumerable <Song> >().ToProperty(this, x => x.Queue);
Observable.Never <IEnumerable <SongTileViewModel> >().ToProperty(this, x => x.AllSongs);
this.WhenNavigatedTo(() => {
var playApi = loginMethods.CurrentAuthenticatedClient;
if (playApi == null)
{
loginMethods.EraseCredentialsAndNavigateToLogin();
return(null);
}
// Get the Listen URL or die trying
Observable.Defer(playApi.ListenUrl)
.Timeout(TimeSpan.FromSeconds(30), RxApp.TaskpoolScheduler)
.Retry()
.ToProperty(this, x => x.ListenUrl);
var pusherSubj = playApi.ConnectToSongChangeNotifications()
.Retry(25)
.Multicast(new Subject <Unit>());
var shouldUpdate = Observable.Defer(() =>
pusherSubj.Take(1).Timeout(TimeSpan.FromMinutes(2.0), RxApp.TaskpoolScheduler)).Catch(Observable.Return(Unit.Default))
.Repeat()
.StartWith(Unit.Default)
.Multicast(new Subject <Unit>());
var nowPlaying = shouldUpdate.SelectMany(_ => playApi.NowPlaying()).Multicast(new Subject <Song>());
shouldUpdate.SelectMany(_ => playApi.Queue())
.Catch(Observable.Return(Enumerable.Empty <Song>()))
.ToProperty(this, x => x.Queue);
nowPlaying
.Catch(Observable.Return(new Song()))
.ToProperty(this, x => x.CurrentSong);
this.WhenAny(x => x.CurrentSong, x => x.Queue,
(song, queue) => (queue.Value != null && song.Value != null ? queue.Value.StartWith(song.Value) : Enumerable.Empty <Song>()))
.Do(x => this.Log().Info("Found {0} items", x.Count()))
.Select(x => x.Select(y => new SongTileViewModel(y, loginMethods.CurrentAuthenticatedClient)
{
QueueSongVisibility = Visibility.Collapsed
}))
.ToProperty(this, x => x.AllSongs);
MessageBus.Current.RegisterMessageSource(this.WhenAny(x => x.IsPlaying, x => x.Value), "IsPlaying");
var ret = new CompositeDisposable();
ret.Add(nowPlaying.Connect());
ret.Add(shouldUpdate.Connect());
ret.Add(pusherSubj.Connect());
return(ret);
});
Logout.Subscribe(_ => loginMethods.EraseCredentialsAndNavigateToLogin());
Search.Subscribe(_ => screen.Router.Navigate.Execute(RxApp.GetService <ISearchViewModel>()));
}
public static void LoadAuthenticatedUserFromCache(ILoginMethods login, ISecureBlobCache loginCache)
{
Observable.Zip(loginCache.GetObjectAsync<string>("BaseUrl"), loginCache.GetObjectAsync<string>("Token"),
(url, name) => new Tuple<string, string>(url, name))
.Catch(Observable.Return<Tuple<string, string>>(null))
.Subscribe(x => {
});
}
