public DevicePageViewModel(UnconnectedImbleDevice unconnectedDevice)
{
this.Device = Observable.FromAsync(token => unconnectedDevice.Connect(token))
.CatchIgnore((Exception e) => { })
.ToReadOnlyReactiveProperty()
.AddTo(this.disposables);
this.IsConnected = this.Device.Select(device => device != null).ToReadOnlyReactiveProperty().AddTo(this.disposables);
this.DeviceStatus = this.Device
.Where(device => device != null)
.Select(device => device.ObserveProperty(self => self.Status))
.Switch()
.Do(value => Debug.WriteLine(value))
.ObserveOnUIDispatcher()
.ToReadOnlyReactiveProperty()
.AddTo(this.disposables);
this.ReceivedMessage = this.Device
.Where(device => device != null)
.Select(device => Observable.FromEventPattern <DataArrivedEventArgs>(handler => device.DataArrived += handler, handler => device.DataArrived -= handler))
.Switch()
.Select(args => new ReceivedMessageViewModel(args.EventArgs.Data, args.EventArgs.Timestamp))
.OnErrorRetry()
.ToReadOnlyReactiveProperty()
.AddTo(this.disposables);
var notBusyNotifier = new BooleanNotifier(false);
this.Name = new ReactiveProperty <string>("Fuga")
.SetValidateNotifyError(value => value != null && Encoding.UTF8.GetByteCount(value) < 12 ? null : "Input short message")
.AddTo(this.disposables);
this.CanSendCommand = Observable.CombineLatest(
this.DeviceStatus.Select(status => status == ImbleDeviceStatus.Running),
this.Name.ObserveHasErrors,
notBusyNotifier.Do(value => Debug.WriteLine(value)),
(isRunning, hasErrors, notBusy) => isRunning && !hasErrors && notBusy)
.ToReadOnlyReactiveProperty().AddTo(this.disposables);
notBusyNotifier.TurnOn();
this.SendCommand = this.CanSendCommand.ToReactiveCommand().AddTo(this.disposables);
this.SendCommand
.Do(_ => notBusyNotifier.TurnOff())
.Select(_ =>
{
var data = Encoding.UTF8.GetBytes(this.Name.Value);
return(Observable.FromAsync(token =>
{
using (var timeoutTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(5)))
using (var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(token, timeoutTokenSource.Token))
{
return this.Device.Value.SendAsync(data, 0, data.Length, linkedTokenSource.Token);
}
})
.Finally(() => notBusyNotifier.TurnOn()));
})
.Switch()
.OnErrorRetry((Exception e) => Debug.WriteLine(e))
.Subscribe()
.AddTo(this.disposables);
}
public DevicePageViewModel(UnconnectedImbleDevice unconnectedDevice)
{
this.Device = Observable.FromAsync(token => unconnectedDevice.Connect(token))
.CatchIgnore((Exception e) => { })
.ToReadOnlyReactiveProperty()
.AddTo(this.disposables);
this.IsConnected = this.Device.Select(device => device != null).ToReadOnlyReactiveProperty().AddTo(this.disposables);
this.DeviceStatus = this.Device
.Where(device => device != null)
.Select(device => device.ObserveProperty(self => self.Status))
.Switch()
.Do(value => Debug.WriteLine(value))
.ObserveOnUIDispatcher()
.ToReadOnlyReactiveProperty()
.AddTo(this.disposables);
this.ReceivedMessage = this.Device
.Where(device => device != null)
.Select(device => Observable.FromEventPattern<DataArrivedEventArgs>(handler => device.DataArrived += handler, handler => device.DataArrived -= handler))
.Switch()
.Select(args => new ReceivedMessageViewModel(args.EventArgs.Data, args.EventArgs.Timestamp))
.OnErrorRetry()
.ToReadOnlyReactiveProperty()
.AddTo(this.disposables);
var notBusyNotifier = new BooleanNotifier(false);
this.Name = new ReactiveProperty<string>("Fuga")
.SetValidateNotifyError(value => value != null && Encoding.UTF8.GetByteCount(value) < 12 ? null : "Input short message")
.AddTo(this.disposables);
this.CanSendCommand = Observable.CombineLatest(
this.DeviceStatus.Select(status => status == ImbleDeviceStatus.Running),
this.Name.ObserveHasErrors,
notBusyNotifier.Do(value => Debug.WriteLine(value)),
(isRunning, hasErrors, notBusy) => isRunning && !hasErrors && notBusy)
.ToReadOnlyReactiveProperty().AddTo(this.disposables);
notBusyNotifier.TurnOn();
this.SendCommand = this.CanSendCommand.ToReactiveCommand().AddTo(this.disposables);
this.SendCommand
.Do(_ => notBusyNotifier.TurnOff())
.Select(_ =>
{
var data = Encoding.UTF8.GetBytes(this.Name.Value);
return Observable.FromAsync(token =>
{
using (var timeoutTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(5)))
using (var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(token, timeoutTokenSource.Token))
{
return this.Device.Value.SendAsync(data, 0, data.Length, linkedTokenSource.Token);
}
})
.Finally(() => notBusyNotifier.TurnOn());
})
.Switch()
.OnErrorRetry((Exception e) => Debug.WriteLine(e))
.Subscribe()
.AddTo(this.disposables);
}
