InputHint not respected by WebChat in speech scenarios

[darrenj]

InputHint not respected by WebChat in speech scenarios

Screenshots

Version

CDN: latest/webchat.js

Describe the bug

The InputHint on a return activity indicates whether the microphone should be opened to take additional input. ExpectingInput should result in the microphone being opened but it's seemingly ignored.

To Reproduce

• Open webchat with Bot
• Ask a question using speech that will trigger a response with InputHint set.

Expected behavior

• Microphone to be opened automatically when ExpectingInput set on InputHint.

[Bug]

[compulim]

@corinagum could you look at this one?

There are 3 options for input hints: ExpectingInput, AcceptingInput (default), IgnoringInput.

The spec can be found at, https://docs.microsoft.com/en-us/azure/bot-service/dotnet/bot-builder-dotnet-add-input-hints?view=azure-bot-service-3.0. The "Default values for input hint" section is complicated and Web Chat currently do not expect SDK automatically set the InputHint correctly. For example, what if the 2nd last activity has ExpectingInput while the last one is IgnoringInput? I think we should IgnoringInput.

Few things to check:

• I don't think we have logic for ExpectingInput, please add.
• We have logic for IgnoringInput, can you check if it work properly?
• Please check if there are activities mixed with ExpectingInput and IgnoringInput, we should honor the last one in chronologically order.

I looked at v3, ExpectingInput will turn on microphone (although it may fail due to browser block).