public IAsyncOperation <HIDInputChannel> ConnectAsync(DeviceInformation deviceInfo)
{
if (this.currentChannel != null)
{
this.currentChannel.Dispose();
this.currentChannel = null;
}
Func <Task <HIDInputChannel> > helper = async() =>
{
if (this.connectedDevices == null)
{
return(null);
}
var device = await this.connectAsync(deviceInfo.Id);
if (device == null)
{
return(null);
}
this.StoreHIDId(deviceInfo.Id);
this.currentChannel = new HIDInputChannel(deviceInfo, device)
{
Services = this.services
};
return(this.currentChannel);
};
return(helper().AsAsyncOperation());
}
public IAsyncOperation <HIDInputChannel> ReconnectAsync()
{
Func <Task <HIDInputChannel> > resumeHelper = async() =>
{
string id = this.currentChannel.DeviceId;
if (id == null)
{
return(null);
}
var device = await this.connectAsync(id);
if (device == null)
{
return(null);
}
this.currentChannel.Resume(device);
return(this.currentChannel);
};
Func <Task <HIDInputChannel> > restartHelper = async() =>
{
string id = this.GetStoredHIDId();
if (id == null)
{
return(null);
}
var deviceInfo = await DeviceInformation.CreateFromIdAsync(id);
var device = await this.connectAsync(id);
if (device == null)
{
this.ResetStoredHIDId();
return(null);
}
this.currentChannel = new HIDInputChannel(deviceInfo, device)
{
Services = this.services
};
return(this.currentChannel);
};
if (this.currentChannel != null)
{
return(resumeHelper().AsAsyncOperation());
}
else
{
return(restartHelper().AsAsyncOperation());
}
}
