private void DiscoverDevice()
{
var busy = _discoverBusy.ProcessStart();
_devices.Clear();
SwMainApi.Discover().Subscribe(d => _devices.Add(d), (ex) => busy.Dispose(), () => busy.Dispose());
}
private void SearchIp()
{
IPAddress addr;
if (!IPAddress.TryParse(SearchIpAddr.Value, out addr))
{
_searchFailed.OnNext(true);
return;
}
var busy = _discoverBusy.ProcessStart();
_devices.Clear();
SwMainApi.DiscoverWithIp(addr).Subscribe(d => _devices.Add(d),
(ex) => {
_searchFailed.OnNext(true);
busy.Dispose();
}, () => {
_searchFailed.OnNext(!_devices.Any());
busy.Dispose();
});
}
public DeviceSelectDialogViewModel()
{
_disposables = new CompositeDisposable();
LocalAddress = SwMainApi.GetAllLocalIPv4Addresses().FirstOrDefault();
var ver = Assembly.GetCallingAssembly().GetName().Version;
AppVersion = $"{ver.Major}.{ver.Minor}.{ver.Build}";
_devices = new ObservableCollection <DiscoverResult>();
Devices = _devices.ToReadOnlyReactiveCollection().AddTo(_disposables);
_discoverBusy = new BusyNotifier();
DiscoverDeviceCommand = _discoverBusy.Inverse().ToReactiveCommand().AddTo(_disposables);
DiscoverDeviceCommand.Delay(new TimeSpan(100)).Subscribe(_ => DiscoverDevice()).AddTo(_disposables);
IsSearchIpMode = new ReactiveProperty <bool>(false).AddTo(_disposables);
IsSearchIpMode.Subscribe(b => {
if (b)
{
// Enter mode: clear fail flag.
_searchFailed.OnNext(false);
}
else if (DiscoverDeviceCommand.CanExecute())
{
// Exit mode: rescan devices.
DiscoverDeviceCommand.Execute();
}
}).AddTo(_disposables);
_searchFailed = new BehaviorSubject <bool>(false).AddTo(_disposables);
SearchFailed = _searchFailed.ToReadOnlyReactiveProperty().AddTo(_disposables);
SearchIpAddr = new ReactiveProperty <string>().SetValidateAttribute(() => SearchIpAddr).AddTo(_disposables);
SearchIpCommand = Observable.CombineLatest(SearchIpAddr.ObserveHasErrors, _discoverBusy, (e, c) => !e && !c)
.ToReactiveCommand().AddTo(_disposables);
SearchIpCommand.Subscribe(_ => SearchIp()).AddTo(_disposables);
}
