/// <summary>
/// Called when the dialog should re-prompt the user for input.
/// </summary>
/// <param name="turnContext">The context object for this turn.</param>
/// <param name="instance">State information for this dialog.</param>
/// <param name="cancellationToken">A cancellation token that can be used by other objects
/// or threads to receive notice of cancellation.</param>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
/// <seealso cref="OnRepromptDialogAsync(ITurnContext, DialogInstance, CancellationToken)"/>
/// <seealso cref="DialogContext.RepromptDialogAsync(CancellationToken)"/>
public override async Task RepromptDialogAsync(ITurnContext turnContext, DialogInstance instance, CancellationToken cancellationToken = default(CancellationToken))
{
// Delegate to inner dialog.
var innerDc = new DialogContext(_dialogs, turnContext, GetDialogState(instance));
await innerDc.RepromptDialogAsync(cancellationToken).ConfigureAwait(false);
// Notify component
await OnRepromptDialogAsync(turnContext, instance, cancellationToken).ConfigureAwait(false);
}
private static async Task <DialogTurnResult> InnerRunAsync(ITurnContext turnContext, string dialogId, DialogContext dialogContext, CancellationToken cancellationToken)
{
// Handle EoC and Reprompt event from a parent bot (can be root bot to skill or skill to skill)
if (IsFromParentToSkill(turnContext))
{
// Handle remote cancellation request from parent.
if (turnContext.Activity.Type == ActivityTypes.EndOfConversation)
{
if (!dialogContext.Stack.Any())
{
// No dialogs to cancel, just return.
return(new DialogTurnResult(DialogTurnStatus.Empty));
}
var activeDialogContext = GetActiveDialogContext(dialogContext);
// Send cancellation message to the top dialog in the stack to ensure all the parents are canceled in the right order.
return(await activeDialogContext.CancelAllDialogsAsync(true, cancellationToken : cancellationToken).ConfigureAwait(false));
}
// Handle a reprompt event sent from the parent.
if (turnContext.Activity.Type == ActivityTypes.Event && turnContext.Activity.Name == DialogEvents.RepromptDialog)
{
if (!dialogContext.Stack.Any())
{
// No dialogs to reprompt, just return.
return(new DialogTurnResult(DialogTurnStatus.Empty));
}
await dialogContext.RepromptDialogAsync(cancellationToken).ConfigureAwait(false);
return(new DialogTurnResult(DialogTurnStatus.Waiting));
}
}
// Continue or start the dialog.
var result = await dialogContext.ContinueDialogAsync(cancellationToken).ConfigureAwait(false);
if (result.Status == DialogTurnStatus.Empty)
{
result = await dialogContext.BeginDialogAsync(dialogId, null, cancellationToken).ConfigureAwait(false);
}
await SendStateSnapshotTraceAsync(dialogContext, cancellationToken).ConfigureAwait(false);
// Skills should send EoC when the dialog completes.
if (result.Status == DialogTurnStatus.Complete || result.Status == DialogTurnStatus.Cancelled)
{
if (SendEoCToParent(turnContext))
{
// Send End of conversation at the end.
var code = result.Status == DialogTurnStatus.Complete ? EndOfConversationCodes.CompletedSuccessfully : EndOfConversationCodes.UserCancelled;
var activity = new Activity(ActivityTypes.EndOfConversation)
{
Value = result.Result, Locale = turnContext.Activity.Locale, Code = code
};
await turnContext.SendActivityAsync(activity, cancellationToken).ConfigureAwait(false);
}
}
return(result);
}
