public DetectViewModel(IFaceServiceClient client, IDialogService dialogService)
{
var fileSelector = new ObservableFileSelector();
var imageSelector = new ImageSelector(fileSelector.SelectFilesCommand);
detector = new Detector(client);
SelectFilesCommand = fileSelector.SelectFilesCommand;
var selectFilesObs = SelectFilesCommand.Publish();
DetectCommand = ReactiveCommand.CreateFromTask(DetectFaces, imageSelector.Images.Any());
imagesHelper = imageSelector.Images
.Select(list => list.Select(data => new DetectionViewModel(data.Image, data.Source)).ToList())
.ToProperty(this, model => model.Images);
DetectCommand.Subscribe(detections => SetDetections(detections));
DetectCommand.ThrownExceptions.Subscribe(async exception => await dialogService.ShowException(exception));
loadingHelper = DetectCommand.IsExecuting.ToProperty(this, model => model.IsBusy);
selectFilesObs.Connect();
}
public RegisterViewModel(IFaceServiceClient client, IDialogService dialogService, string group)
{
this.client = client;
this.group = group;
var fileSelector = new ObservableFileSelector();
SelectImagesCommand = fileSelector.SelectFilesCommand;
var imageSelector = new ImageSelector(fileSelector.SelectFilesCommand);
imagesHelper = imageSelector.Images.ToProperty(this, r => r.Images);
LoadPeopleCommand = ReactiveCommand.CreateFromTask(LoadPeople);
LoadPeopleCommand.HandleErrors(dialogService);
var canRegister = this
.WhenAnyValue(x => x.Name, x => x.Images, (name, images) => new { name, images })
.Select(x => !string.IsNullOrEmpty(x.name) && x.images != null && x.images.Any());
RegisterPersonCommand = ReactiveCommand.CreateFromTask(RegisterPerson, canRegister);
RegisterPersonCommand.HandleErrors(dialogService);
peopleHelper = LoadPeopleCommand.Select(people => people.Select(person => new PersonViewModel(person, client, group, dialogService)).ToList()).ToProperty(this, r => r.People);
busyObs = Observable
.Merge(new [] { RegisterPersonCommand.IsExecuting, LoadPeopleCommand.IsExecuting })
.ToProperty(this, model => model.IsBusy);
MessageBus.Current.Listen <PersonDeletedMessage>()
.Select(x => Unit.Default)
.InvokeCommand(this, model => model.LoadPeopleCommand);
RegisterPersonCommand
.Select(x => Unit.Default)
.InvokeCommand(LoadPeopleCommand);
}
public IdentifyViewModel(IFaceServiceClient client, IDialogService dialogService)
{
this.client = client;
var fileSelector = new ObservableFileSelector();
var imageSelector = new ImageSelector(fileSelector.SelectFilesCommand);
detector = new Detector(client);
SelectFilesCommand = fileSelector.SelectFilesCommand;
var filesObs = SelectFilesCommand.Publish();
IdentifyCommand = ReactiveCommand.CreateFromTask(IdentifyFaces, imageSelector.Images.Any());
imagesObs = imageSelector.Images
.Select(list => list.Select(data => new IdentificationViewModel(data.Image, data.Source)).ToList())
.ToProperty(this, model => model.Identifications);
IdentifyCommand.Subscribe(SetIdentifications);
IdentifyCommand.ThrownExceptions.Subscribe(async exception => await dialogService.ShowException(exception));
isBusyObs = IdentifyCommand.IsExecuting.ToProperty(this, model => model.IsBusy);
filesObs.Connect();
}
public GroupViewModel(IFaceServiceClient client, IDialogService dialogService)
{
this.client = client;
var fileSelector = new ObservableFileSelector();
var imageSelector = new ImageSelector(fileSelector.SelectFilesCommand);
faceDetector = new Detector(client);
SelectFilesCommand = fileSelector.SelectFilesCommand;
var selectFilesObs = SelectFilesCommand.Publish();
GroupCommand = ReactiveCommand.CreateFromTask(GroupImages, imageSelector.Images.Any());
GroupCommand.ThrownExceptions.Subscribe(async exception => await dialogService.ShowException(exception));
imagesHelper = imageSelector.Images.ToProperty(this, model => model.Images);
groupsHelper = GroupCommand.ToProperty(this, model => model.Groups);
loadingHelper = GroupCommand.IsExecuting.ToProperty(this, model => model.IsBusy);
selectFilesObs.Connect();
}