public MyPageViewModel(ITicketService ticketService, ITicketMapper mapper)
{
_ticketService = ticketService;
_mapper = mapper;
LoadTickets = new ReactiveAsyncCommand(null, 1, RxApp.DeferredScheduler);
LoadTickets.RegisterAsyncFunction(x => loadTickets())
.ToProperty(this, x => x.Tickets);
Observable.Interval(TimeSpan.FromSeconds(10), RxApp.DeferredScheduler)
.InvokeCommand(LoadTickets);
LoadTickets.Execute(null);
_redmineBaseUrl = ConfigurationManager.AppSettings["Redmine.BaseRedmineUrl"];
SortBy = new List<SortByModel>()
{
new SortByModel("Project", c => c.Project),
new SortByModel("Due date", c=> c.DueDate),
new SortByModel("Priority", c => c.Priority),
};
SortByCommand = new ReactiveCommand(this.WhenAny(c => c.Tickets,
((tickets) => tickets.Value != null && tickets.Value.Count > 0)));
SortByCommand.Subscribe(c => sortTickets((SortByModel)c));
}
public void RAFShouldActuallyRunOnTheTaskpool()
{
var deferred = RxApp.DeferredScheduler;
var taskpool = RxApp.TaskpoolScheduler;
try {
var testDeferred = new CountingTestScheduler(Scheduler.Immediate);
var testTaskpool = new CountingTestScheduler(Scheduler.NewThread);
RxApp.DeferredScheduler = testDeferred;
RxApp.TaskpoolScheduler = testTaskpool;
var fixture = new ReactiveAsyncCommand();
var result = fixture.RegisterAsyncFunction(x => {
Thread.Sleep(1000);
return((int)x * 5);
});
fixture.Execute(1);
Assert.Equal(5, result.First());
Assert.True(testDeferred.ScheduledItems.Count >= 1);
Assert.True(testTaskpool.ScheduledItems.Count >= 1);
} finally {
RxApp.DeferredScheduler = deferred;
RxApp.TaskpoolScheduler = taskpool;
}
}
public HyperCommand(JsonServiceClient client, Grandsys.Wfm.Services.Outsource.ServiceModel.Link link)
{
Content = link.Name;
Command = new ReactiveAsyncCommand();
Method = link.Method;
Request = link.Request;
Response = Command.RegisterAsyncFunction(_ => {
Model.EvaluationItem response;
if (string.IsNullOrEmpty(Method))
{
return(null);
}
switch (Method)
{
default:
response = client.Send <Model.EvaluationItem>(Method, Request.ToUrl(Method), _ ?? Request);
break;
case "GET":
response = client.Get <Model.EvaluationItem>(Request.ToUrl(Method));
break;
}
return(response);
});
Command.ThrownExceptions.Subscribe(ex => Console.WriteLine(ex.Message));
}
public MyPageViewModel(ITicketService ticketService, ITicketMapper mapper)
{
_ticketService = ticketService;
_mapper = mapper;
LoadTickets = new ReactiveAsyncCommand(null, 1, RxApp.DeferredScheduler);
LoadTickets.RegisterAsyncFunction(x => loadTickets())
.ToProperty(this, x => x.Tickets);
Observable.Interval(TimeSpan.FromSeconds(10), RxApp.DeferredScheduler)
.InvokeCommand(LoadTickets);
LoadTickets.Execute(null);
_redmineBaseUrl = ConfigurationManager.AppSettings["Redmine.BaseRedmineUrl"];
SortBy = new List <SortByModel>()
{
new SortByModel("Project", c => c.Project),
new SortByModel("Due date", c => c.DueDate),
new SortByModel("Priority", c => c.Priority),
};
SortByCommand = new ReactiveCommand(this.WhenAny(c => c.Tickets,
((tickets) => tickets.Value != null && tickets.Value.Count > 0)));
SortByCommand.Subscribe(c => sortTickets((SortByModel)c));
}
public LoginFormViewModel(IAuthenticator authenticator)
{
// push the initial values in the observables
// so that everyone subscribing before the user logs in for the first time
// sees that the user is not there
bool initialCredentialsOK = authenticator.TryLoginFromStoredCredentials();
if (initialCredentialsOK)
{
userDataSubject.OnNext(authenticator.UserData);
UsernameField = authenticator.UserData.Username;
}
else
{
userDataSubject.OnNext(UserData.NoUser);
UsernameField = "";
}
UserLoggedInObservable = UserDataObservable.Select(x => x != UserData.NoUser);
_UserLoggedIn = UserLoggedInObservable.ToProperty(this, x => x.UserLoggedIn);
LogIn = new ReactiveAsyncCommand(UserLoggedInObservable.Select(x => !x), 1);
LogIn.RegisterAsyncFunction(_ =>
{
bool logicSuccessful = authenticator.Login(UsernameField, PasswordField,
true);
if (logicSuccessful)
{
//collapse if the login was successfull
IsLoginFormExpanded = false;
}
else
{
// if login failed, return the focus to the username field
IsUsernameFieldFocused = true;
}
return(authenticator.UserData);
}).Subscribe(userDataSubject.OnNext);
LogOut = new ReactiveAsyncCommand(UserLoggedInObservable, 1);
LogOut.RegisterAsyncFunction(_ =>
{
authenticator.Logout();
IsPasswordFieldFocused = true;
return(authenticator.UserData);
}).Subscribe(userDataSubject.OnNext);
_UserData = UserDataObservable.ToProperty(this, x => x.UserData);
}
public MainViewModel()
{
IsInProgress = Visibility.Collapsed;
LoginCommand = new ReactiveAsyncCommand(this.WhenAny(t => t.UserName, t => t.Password, (x, y) => !string.IsNullOrEmpty(x.Value) && !string.IsNullOrEmpty(y.Value)));
LoginCommand.ItemsInflight.Select(x => x > 0 ? Visibility.Visible : Visibility.Collapsed).Subscribe(x => IsInProgress = x);
LoginCommand.RegisterAsyncFunction(_ => _gitHubService.Login(UserName, Password)).Subscribe(
u => LoggedInUser = u);
this.ObservableForProperty(x => x.LoggedInUser,
user => user == null ? Visibility.Hidden : Visibility.Visible).Subscribe(v => IsUserLoggedIn = v);
_cache = new MemoizingMRUCache<User, Repository[]>((user,_) =>
_gitHubService.GetRepositories(user), 3);
this.WhenAny(t => t.LoggedInUser, u => u.Value != null).Where(filter => filter).Subscribe(_ =>
Repositories = new ReactiveCollection<Repository>(_cache.Get(LoggedInUser))
);
}
public MainViewModel()
{
IsInProgress = Visibility.Collapsed;
LoginCommand = new ReactiveAsyncCommand(this.WhenAny(t => t.UserName, t => t.Password, (x, y) => !string.IsNullOrEmpty(x.Value) && !string.IsNullOrEmpty(y.Value)));
LoginCommand.ItemsInflight.Select(x => x > 0 ? Visibility.Visible : Visibility.Collapsed).Subscribe(x => IsInProgress = x);
LoginCommand.RegisterAsyncFunction(_ => _gitHubService.Login(UserName, Password)).Subscribe(
u => LoggedInUser = u);
this.ObservableForProperty(x => x.LoggedInUser,
user => user == null ? Visibility.Hidden : Visibility.Visible).Subscribe(v => IsUserLoggedIn = v);
_cache = new MemoizingMRUCache <User, Repository[]>((user, _) =>
_gitHubService.GetRepositories(user), 3);
this.WhenAny(t => t.LoggedInUser, u => u.Value != null).Where(filter => filter).Subscribe(_ =>
Repositories = new ReactiveCollection <Repository>(_cache.Get(LoggedInUser))
);
}
public MainWindowViewModel()
{
var noneInFlight = new BehaviorSubject <bool>(false);
var updateManager = default(UpdateManager);
this.WhenAny(x => x.UpdatePath, x => x.Value)
.Where(x => !String.IsNullOrWhiteSpace(x))
.Throttle(TimeSpan.FromMilliseconds(700), RxApp.DeferredScheduler)
.Subscribe(x => updateManager = new UpdateManager(UpdatePath, "SampleUpdatingApp", FrameworkVersion.Net40));
CheckForUpdate = new ReactiveAsyncCommand(noneInFlight);
CheckForUpdate.RegisterAsyncFunction(_ => {
using (updateManager.AcquireUpdateLock()) {
return(updateManager.CheckForUpdate().Last());
}
}).Subscribe(x => { UpdateInfo = x; DownloadedUpdateInfo = null; });
DownloadReleases = new ReactiveAsyncCommand(noneInFlight.Where(_ => UpdateInfo != null));
DownloadReleases.RegisterAsyncFunction(_ => {
using (updateManager.AcquireUpdateLock()) {
return(updateManager.DownloadReleases(UpdateInfo.ReleasesToApply).Last());
}
}).Subscribe(_ => DownloadedUpdateInfo = UpdateInfo);
ApplyReleases = new ReactiveAsyncCommand(noneInFlight.Where(_ => DownloadedUpdateInfo != null));
ApplyReleases.RegisterAsyncFunction(_ => {
using (updateManager.AcquireUpdateLock()) {
return(updateManager.ApplyReleases(DownloadedUpdateInfo).Last());
}
});
Observable.CombineLatest(
CheckForUpdate.ItemsInflight.StartWith(0),
DownloadReleases.ItemsInflight.StartWith(0),
ApplyReleases.ItemsInflight.StartWith(0),
this.WhenAny(x => x.UpdatePath, _ => 0),
(a, b, c, _) => a + b + c
).Select(x => x == 0 && UpdatePath != null).Multicast(noneInFlight).Connect();
}
public MainWindowViewModel()
{
var noneInFlight = new BehaviorSubject<bool>(false);
var updateManager = default(UpdateManager);
this.WhenAny(x => x.UpdatePath, x => x.Value)
.Where(x => !String.IsNullOrWhiteSpace(x))
.Throttle(TimeSpan.FromMilliseconds(700), RxApp.DeferredScheduler)
.Subscribe(x => updateManager = new UpdateManager(UpdatePath, "SampleUpdatingApp", FrameworkVersion.Net40));
CheckForUpdate = new ReactiveAsyncCommand(noneInFlight);
CheckForUpdate.RegisterAsyncFunction(_ => {
using (updateManager.AcquireUpdateLock()) {
return updateManager.CheckForUpdate().Last();
}
}).Subscribe(x => { UpdateInfo = x; DownloadedUpdateInfo = null; });
DownloadReleases = new ReactiveAsyncCommand(noneInFlight.Where(_ => UpdateInfo != null));
DownloadReleases.RegisterAsyncFunction(_ => {
using (updateManager.AcquireUpdateLock()) {
return updateManager.DownloadReleases(UpdateInfo.ReleasesToApply).Last();
}
}).Subscribe(_ => DownloadedUpdateInfo = UpdateInfo);
ApplyReleases = new ReactiveAsyncCommand(noneInFlight.Where(_ => DownloadedUpdateInfo != null));
ApplyReleases.RegisterAsyncFunction(_ => {
using (updateManager.AcquireUpdateLock()) {
return updateManager.ApplyReleases(DownloadedUpdateInfo).Last();
}
});
Observable.CombineLatest(
CheckForUpdate.ItemsInflight.StartWith(0),
DownloadReleases.ItemsInflight.StartWith(0),
ApplyReleases.ItemsInflight.StartWith(0),
this.WhenAny(x => x.UpdatePath, _ => 0),
(a, b, c, _) => a + b + c
).Select(x => x == 0 && UpdatePath != null).Multicast(noneInFlight).Connect();
}
public void RAFShouldActuallyRunOnTheTaskpool()
{
var deferred = RxApp.DeferredScheduler;
var taskpool = RxApp.TaskpoolScheduler;
try {
var testDeferred = new CountingTestScheduler(Scheduler.Immediate);
var testTaskpool = new CountingTestScheduler(Scheduler.NewThread);
RxApp.DeferredScheduler = testDeferred; RxApp.TaskpoolScheduler = testTaskpool;
var fixture = new ReactiveAsyncCommand();
var result = fixture.RegisterAsyncFunction(x => { Thread.Sleep(1000); return (int)x * 5; });
fixture.Execute(1);
Assert.Equal(5, result.First());
Assert.True(testDeferred.ScheduledItems.Count >= 1);
Assert.True(testTaskpool.ScheduledItems.Count >= 1);
} finally {
RxApp.DeferredScheduler = deferred;
RxApp.TaskpoolScheduler = taskpool;
}
}
public void MultipleSubscribersShouldntDecrementRefcountBelowZero()
{
var fixture = new ReactiveAsyncCommand(null, 1);
var results = new List<int>();
bool[] subscribers = new[] { false, false, false, false, false };
var output = fixture.RegisterAsyncFunction(_ => { Thread.Sleep(2000); return 5; });
output.Subscribe(x => results.Add(x));
Enumerable.Range(0, 5).Run(x => output.Subscribe(_ => subscribers[x] = true));
Assert.IsTrue(fixture.CanExecute(null));
fixture.Execute(null);
Assert.IsFalse(fixture.CanExecute(null));
Thread.Sleep(6000);
Assert.IsTrue(fixture.CanExecute(null));
Assert.IsTrue(results.Count == 1);
Assert.IsTrue(results[0] == 5);
Assert.IsTrue(subscribers.All(x => x == true));
}
public void RegisterAsyncFunctionSmokeTest()
{
var inflight_results = new List<int>();
var fixture = new ReactiveAsyncCommand(null, 1);
var results = new List<int>();
fixture.RegisterAsyncFunction(_ => { Thread.Sleep(2000); return 5; })
.Subscribe(x => results.Add(x));
fixture.ItemsInflight.Subscribe(x => inflight_results.Add(x));
Assert.IsTrue(fixture.CanExecute(null));
fixture.Execute(null);
Assert.IsFalse(fixture.CanExecute(null));
Thread.Sleep(6000);
Assert.IsTrue(fixture.CanExecute(null));
new[] {0,1,0}.Zip(inflight_results, (expected, actual) => new {expected, actual})
.Run(x => Assert.AreEqual(x.expected, x.actual));
Assert.IsTrue(results.Count == 1);
Assert.IsTrue(results[0] == 5);
}
public MediaBrowserViewModel(IMediaLibraryBrowser mediaLibraryBrowser, Settings settings,
LoginFormViewModel loginFormViewModel, IMixViewModelFactory mixViewModelFactory)
{
this.settings = settings;
this.mixViewModelFactory = mixViewModelFactory;
this.mediaLibraryBrowser = mediaLibraryBrowser;
GetRecentlyMadeMixes = new ReactiveAsyncCommand(null, 1);
GetRecentlyMadeMixes.RegisterAsyncFunction(
_ => mediaLibraryBrowser.GetRecentlyMadeMixes(CreateMixFilter(Filter)))
.Subscribe(SetBrowsedMixes);
GetHotMixes = new ReactiveAsyncCommand(null, 1);
GetHotMixes.RegisterAsyncFunction(_ => mediaLibraryBrowser.GetHotMixes(CreateMixFilter(Filter))).Subscribe(
SetBrowsedMixes);
GetPopularMixes = new ReactiveAsyncCommand(null, 1);
GetPopularMixes.RegisterAsyncFunction(_ => mediaLibraryBrowser.GetPopularMixes(CreateMixFilter(Filter)))
.Subscribe(SetBrowsedMixes);
// command is enabled only if the user is logged in
GetLikedMixes = new ReactiveAsyncCommand(loginFormViewModel.UserLoggedInObservable, 1);
GetLikedMixes.RegisterAsyncFunction(_ =>
{
var mixFilter = CreateMixFilter(Filter);
string userSlug = loginFormViewModel.UserData.UserSlug;
return(mediaLibraryBrowser.GetLikedMixes(mixFilter, userSlug));
}).Subscribe(SetBrowsedMixes);
// command is enabled only if the user is logged in
GetFeedMixes = new ReactiveAsyncCommand(loginFormViewModel.UserLoggedInObservable, 1);
GetFeedMixes.RegisterAsyncFunction(_ =>
{
var mixFilter = CreateMixFilter(Filter);
string userSlug = loginFormViewModel.UserData.UserSlug;
return(mediaLibraryBrowser.GetFeedMixes(mixFilter, userSlug));
}).Subscribe(SetBrowsedMixes);
GetRecommendedMixes = new ReactiveAsyncCommand(loginFormViewModel.UserLoggedInObservable, 1);
GetRecommendedMixes.RegisterAsyncFunction(_ =>
{
var mixFilter = CreateMixFilter(Filter);
string userSlug = loginFormViewModel.UserData.UserSlug;
return(mediaLibraryBrowser.GetRecommendedMixes(mixFilter, userSlug));
}).Subscribe(SetBrowsedMixes);
GetHistoryMixes = new ReactiveAsyncCommand(loginFormViewModel.UserLoggedInObservable, 1);
GetHistoryMixes.RegisterAsyncFunction(_ =>
{
var mixFilter = CreateMixFilter(Filter);
string userSlug = loginFormViewModel.UserData.UserSlug;
return(mediaLibraryBrowser.GetHistoryMixes(mixFilter, userSlug));
}).Subscribe(SetBrowsedMixes);
BrowsedMixes = new DispatchedReactiveCollection <MixViewModel>();
ReplaySubject <bool> browsedMixesExistObservable = new ReplaySubject <bool>(1);
BrowsedMixes.CollectionCountChanged.Select(count => count > 0).Subscribe(browsedMixesExistObservable.OnNext);
browsedMixesExistObservable.OnNext(false);
GetMoreMixes = new ReactiveAsyncCommand(browsedMixesExistObservable, 1);
GetMoreMixes.RegisterAsyncFunction(_ => mediaLibraryBrowser.GetMoreMixes())
.Subscribe(AddBrowsedMixes);
// set can execute only if there is something in the list
SetMixDisplayMode = new ReactiveCommand(browsedMixesExistObservable);
SetMixDisplayMode.Subscribe(mode => MixDisplayMode = (MixDisplayMode)mode);
ApplyFilter = new ReactiveCommand();
ApplyFilter.Where(_ => Filter.Length > 0)
.Subscribe(_ =>
{
// if we only started up the application, by search for Hot mixes
if (mediaLibraryBrowser.SessionData.IsEmpty)
{
GetHotMixes.Execute(null);
return;
}
// otherwise, take the same type of mixes as they were before
switch (mediaLibraryBrowser.SessionData.LastMixesRequest.ViewType)
{
case MixesViewType.Hot: GetHotMixes.Execute(null); break;
case MixesViewType.Popular: GetPopularMixes.Execute(null); break;
case MixesViewType.Recent: GetRecentlyMadeMixes.Execute(null); break;
case MixesViewType.Liked: GetLikedMixes.Execute(null); break;
case MixesViewType.Feed: GetFeedMixes.Execute(null); break;
case MixesViewType.Listened: GetHistoryMixes.Execute(null); break;
case MixesViewType.Recommended: GetRecommendedMixes.Execute(null); break;
default:
// throw new ArgumentOutOfRangeException();
break;
}
});
MixDisplayMode mixDisplayMode;
string storedMixDisplayModeString = (string)settings[mixdisplayModeKey];
Enum.TryParse <MixDisplayMode>(storedMixDisplayModeString, out mixDisplayMode);
MixDisplayMode = mixDisplayMode;
MixesViewTypeAsString = String.Empty;
Filter = String.Empty;
MixBrowsingMessage = String.Empty;
}
public MapManagementVM(
IConnectivityService Network,
IMapTransferService MapService,
IMapStorageService MapStorage,
INotificationService Notifications,
[Dispatcher] IScheduler Dispatcher
) {
Contract.Requires(Network != null);
Contract.Requires(MapService != null);
Contract.Requires(MapStorage != null);
Contract.Requires(Notifications != null);
this.Network = Network;
this.MapService = MapService;
this.MapStorage = MapStorage;
this.FirstActivation()
.Subscribe(_ => getMaps.Execute(null));
MapList = getMaps.RegisterAsyncFunction(_ => MapStorage.getAllMaps().Select(m => new MapVM(m)))
.SelectMany(vms => vms.ToList())
.ObserveOn(Dispatcher)
.CreateCollection();
MapList.ItemsAdded
.Subscribe(item => _local_map_register.Add(item.ServerKey, Unit.Default));
MapList.ItemsRemoved
.Subscribe(item => _local_map_register.Remove(item.ServerKey));
SelectMap = new ReactiveCommand<MapVM>(vm => !vm.IsDownloading);
SelectMap
.Select(vm => vm as IElementVM<Map>)
.ToMessage(Messenger, MessageContracts.VIEW);
SelectMap
.Select(_ => Page.Previous)
.ToMessage(Messenger);
DeleteMap = new ReactiveCommand<MapVM>(vm => !vm.IsDownloading);
DeleteMap
.Do(vm => MapList.Remove(vm))
.Select(vm => vm.Model)
.Where(map => map != null)
.Subscribe(map => MapStorage.deleteMap(map));
_IsOnlineAvailable = this.ObservableToProperty(
this.OnActivation()
.SelectMany(Network.WifiAvailable().TakeUntil(this.OnDeactivation()))
.Do(x => { })
, x => x.IsOnlineAvailable, false);
SearchMaps = new ReactiveAsyncCommand(_IsOnlineAvailable);
_SearchResults = this.ObservableToProperty<MapManagementVM, IReactiveCollection<MapVM>>(
SearchMaps.RegisterAsyncFunction(s => searchMapsImpl(s as string))
.ObserveOn(Dispatcher)
.Select(result => {
try {
return new ReactiveCollection<MapVM>(result.Select(x => new MapVM(null) { ServerKey = x })) as IReactiveCollection<MapVM>;
}
catch (Exception) {
return null;
}
}),
x => x.SearchResults);
DownloadMap = new ReactiveCommand<MapVM>(vm => canBeDownloaded(vm as MapVM), Observable.Empty<Unit>());
DownloadMap
.Where(downloadMap.CanExecute)
.CheckConnectivity(Network, Notifications)
.Do(vm => vm.IsDownloading = true)
.Do(_ => CurrentPivot = Pivot.Local)
.Do(vm => MapList.Add(vm))
.Subscribe(downloadMap.Execute);
downloadMap.RegisterAsyncObservable(vm => {
var vm_t = vm as MapVM;
if (vm_t == null)
return Observable.Empty<System.Tuple<MapVM, Map>>();
else
return MapService.downloadMap(vm_t.ServerKey)
.ShowServiceErrorNotifications(Notifications)
.Catch((WebException ex) => {
Notifications.showNotification(DiversityResources.MapManagement_Message_NoPermissions);
return Observable.Empty<Map>();
})
.Select(map => System.Tuple.Create(vm_t, map));
})
.ObserveOn(Dispatcher)
.Select(t => {
if (t.Item1 != null) // VM
{
if (t.Item2 != null) // Map
{
t.Item1.SetModel(t.Item2);
}
else {
MapList.Remove(t.Item1);
}
}
return t.Item1;
}).Subscribe(_ => SelectMap.RaiseCanExecuteChanged());
}
public HyperCommand(JsonServiceClient client ,Grandsys.Wfm.Services.Outsource.ServiceModel.Link link)
{
Content = link.Name;
Command = new ReactiveAsyncCommand();
Method = link.Method;
Request = link.Request;
Response = Command.RegisterAsyncFunction(_ => {
Model.EvaluationItem response;
if (string.IsNullOrEmpty(Method))
return null;
switch (Method)
{
default:
response = client.Send<Model.EvaluationItem>(Method, Request.ToUrl(Method), _ ?? Request);
break;
case "GET":
response = client.Get<Model.EvaluationItem>(Request.ToUrl(Method));
break;
}
return response;
});
Command.ThrownExceptions.Subscribe(ex => Console.WriteLine(ex.Message));
}