Expose scopedResults to ais-state-results

[tkrugg]

Feature ⚡️

As a Vue InstantSearch user, I'd like to be able to access data of scopedResults from ais-state-results.

What is your use case for such a feature?

Say I have an InstantSearch instance with two indices side by side: demo_ecommerce and demo_media
I'd like to be able to show the total number of hits for my query, for the two indices.

nbHits of demo_ecommerce + nbHits of demo_media

demo

Currently I can do this with ais-autocomplete because it's one of the few widgets that's able to access scopedResults and exposes it in a slot. But I think it's more natural to do with ais-state-results.

What is your proposal

1. move connectStateResults to InstantSearch.js so it can live with other connectors and have equal chances to leverage new features and be tested, and even be used in Angular InstantSearch.
2. exposed scopedResults, maybe even indices similarly to connectAutocomplete
3. Document FAQ or pattern for accessing data from multiple indices at the same time.

[Haroenv]

one thing I'd like to change about state-results (in a major version or via a prop to enable it) is to actually do return (empty) items in init and rendering the children using it, to prevent issues like algolia/vue-instantsearch#935

see:

https://github.com/algolia/vue-instantsearch/blob/513017a47d38ccddd0557c01ce732e6e5e7648d6/src/connectors/connectStateResults.js#L6-L16

https://github.com/algolia/vue-instantsearch/blob/513017a47d38ccddd0557c01ce732e6e5e7648d6/src/components/StateResults.vue#L4