provide index/list of groups about crosstalk HOT 3 OPEN

any thoughts on this? I keep getting blocked by this unfortunately. Happy to try a pull request.

from crosstalk.

I'm staying conservative with the API because it's very unclear to me what direction crosstalk will go in next. The more I open up the APIs, the more things get set in stone (part of the reason why I moved away from having people directly interact with groups and vars).

What is it you'd like to do?

from crosstalk.

Without knowledge of the SharedData in R, it is very difficult to know to which group an htmlwidget or other component belongs. In most cases, we could derive this from inspection of the htmlwidget instance or data, but unfortunately implementation is not guaranteed to be consistent. If someone wanted to add behavior in JavaScript ex-post or without direct specification of the group in SharedData, it can be nearly impossible to subscribe to the crosstalk events.

I understand what you are saying about an unstable API and care in exposing the minimum, but some lookup mechanism would be very valuable.

from crosstalk.