How to access row data on hover?

[LifeIsStrange]

I am looking for the equivalent of onRowClick: onRowHover.

My use case is to display additional metadata of the row on hover (via a tooltip)

I tried onRowSelected but that's not it.

Note that there is two complementary use:

1. get the row data on hover.

2. a second need would be to provide a domref or a unique CSS class/id of the current row (note that simply providing the row number relative to the first one, could be enough)
   given this a library user can style the specific row accordingly e.g. with the relative number one can do :nth-child(nbr)

[LifeIsStrange]

@Domino987 Friendly ping if you get the time to look at this need.