public OperEditorViewModel(ICachedService cachedService, IMapper mapper, IShell shell)
{
Shell = shell as CachedServiceShell;
this.cachedService = cachedService;
this.mapper = mapper;
IsValid = true;
validator = new OperEditorValidator();
var operTemplates = new SourceList <string>();
var canSave = this.WhenAnyValue(tvm => tvm.IsDirty,
isd => isd == true).Concat(Shell.CanEdit);
SaveChangesCommand = ReactiveCommand.CreateFromTask(async() => await Save(),
canSave);
CancelCommand = ReactiveCommand.CreateFromTask(async() =>
{
if (IsDirty)
{
if (!await Shell.ShowWarningAffirmativeDialogAsync
("All unsaved changes will be lost. Close window?"))
{
return;
}
}
Close();
});
this.ObservableForProperty(s => s.Mode)
.Subscribe(mode =>
{
var templates = mode.Value == OperMode.Exporter
? DataExporters.Select(pair => pair.Key)
: DataImporters.Select(pair => pair.Key);
operTemplates.ClearAndAddRange(templates);
OperTemplates = operTemplates.SpawnCollection();
ImplementationType = operTemplates.First();
});
this.ObservableForProperty(s => s.ImplementationType)
.Where(type => type.Value != null)
.Subscribe(type =>
{
var operType = Mode == OperMode.Exporter
? DataExporters[type.Value]
: DataImporters[type.Value];
if (operType == null)
{
return;
}
Configuration = Activator.CreateInstance(operType);
mapper.Map(cachedService, Configuration);
});
this.WhenAnyObservable(s => s.AllErrors.CountChanged)
.Subscribe(_ => IsValid = !AllErrors.Items.Any());
}
