/// <summary>
/// Background task entrypoint. Voice Commands using the <VoiceCommandService Target="...">
/// tag will invoke this when they are recognized by Cortana, passing along details of the
/// invocation.
///
/// Background tasks must respond to activation by Cortana within 0.5 seconds, and must
/// report progress to Cortana every 5 seconds (unless Cortana is waiting for user
/// input). There is no execution time limit on the background task managed by Cortana,
/// but developers should use plmdebug (https://msdn.microsoft.com/en-us/library/windows/hardware/jj680085%28v=vs.85%29.aspx)
/// on the Cortana app package in order to prevent Cortana timing out the task during
/// debugging.
///
/// Cortana dismisses its UI if it loses focus. This will cause it to terminate the background
/// task, even if the background task is being debugged. Use of Remote Debugging is recommended
/// in order to debug background task behaviors. In order to debug background tasks, open the
/// project properties for the app package (not the background task project), and enable
/// Debug -> "Do not launch, but debug my code when it starts". Alternatively, add a long
/// initial progress screen, and attach to the background task process while it executes.
/// </summary>
/// <param name="taskInstance">Connection to the hosting background service process.</param>
public async void Run(IBackgroundTaskInstance taskInstance)
{
serviceDeferral = taskInstance.GetDeferral();
// Register to receive an event if Cortana dismisses the background task. This will
// occur if the task takes too long to respond, or if Cortana's UI is dismissed.
// Any pending operations should be cancelled or waited on to clean up where possible.
taskInstance.Canceled += OnTaskCanceled;
var triggerDetails = taskInstance.TriggerDetails as AppServiceTriggerDetails;
// Load localized resources for strings sent to Cortana to be displayed to the user.
cortanaResourceMap = ResourceManager.Current.MainResourceMap.GetSubtree("Resources");
// Select the system language, which is what Cortana should be running as.
cortanaContext = ResourceContext.GetForViewIndependentUse();
// Get the currently used system date format
dateFormatInfo = CultureInfo.CurrentCulture.DateTimeFormat;
// This should match the uap:AppService and VoiceCommandService references from the
// package manifest and VCD files, respectively. Make sure we've been launched by
// a Cortana Voice Command.
if (triggerDetails != null && triggerDetails.Name == "SeleniumBotVoiceService")
{
try
{
voiceServiceConnection =
VoiceCommandServiceConnection.FromAppServiceTriggerDetails(
triggerDetails);
voiceServiceConnection.VoiceCommandCompleted += OnVoiceCommandCompleted;
// GetVoiceCommandAsync establishes initial connection to Cortana, and must be called prior to any
// messages sent to Cortana. Attempting to use ReportSuccessAsync, ReportProgressAsync, etc
// prior to calling this will produce undefined behavior.
VoiceCommand voiceCommand = await voiceServiceConnection.GetVoiceCommandAsync();
// Depending on the operation (defined in AdventureWorks:AdventureWorksCommands.xml)
// perform the appropriate command.
switch (voiceCommand.CommandName)
{
/*
* case "whenIsTripToDestination":
* var destination = voiceCommand.Properties["destination"][0];
* await SendCompletionMessageForDestination(destination);
* break;
* case "cancelTripToDestination":
* var cancelDestination = voiceCommand.Properties["destination"][0];
* await SendCompletionMessageForCancellation(cancelDestination);
* break;
*/
case "openBrowser":
{
var message = new VoiceCommandUserMessage()
{
DisplayMessage = "opened edge",
SpokenMessage = "opened edge"
};
await ShowProgressScreen("launching Edge");
await control.OpenBrowser();
var response = VoiceCommandResponse.CreateResponse(message);
await voiceServiceConnection.ReportSuccessAsync(response);
}
break;
case "closeBrowser":
{
var message2 = new VoiceCommandUserMessage()
{
DisplayMessage = "closed edge",
SpokenMessage = "closed edge"
};
await ShowProgressScreen("closing edge");
await control.CloseBrowser();
var response2 = VoiceCommandResponse.CreateResponse(message2);
await voiceServiceConnection.ReportSuccessAsync(response2);
}
break;
case "navTo":
{
var arg = voiceCommand.Properties["wildcardArgs"][0];
if (arg == null)
{
await ShowProgressScreen($"arg can't be null");
break;
}
await ShowProgressScreen($"navigating to {arg}");
await control.Nav(new Lib.DTOs.Nav()
{
urlOrName = arg
});
var message2 = new VoiceCommandUserMessage()
{
DisplayMessage = "navigated",
SpokenMessage = "navigated"
};
var response2 = VoiceCommandResponse.CreateResponse(message2);
await voiceServiceConnection.ReportSuccessAsync(response2);
}
break;
default:
// As with app activation VCDs, we need to handle the possibility that
// an app update may remove a voice command that is still registered.
// This can happen if the user hasn't run an app since an update.
LaunchAppInForeground();
break;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Handling Voice Command failed " + ex.ToString());
await ShowProgressScreen("error, " + ex.Message);
}
}
}