"autocomplete" point on map

I'm not sure if this is a support request or feature request. Maybe there's already a way to do this.

I have a content type with a geofield, and I'm using the openlayers map widget. It works OK. The user can click a point on the map.

The problem is it is quite difficult to click a point with a lot of accuracy. There's a lot of zooming and dragging, and it's kind of easy to get lost on the map.

What I'd like is a textfield (or entire address field) where a user could type a zip code or city name, and when they do, the map zooms to that location. I think of it sort of like autocomplete, but for a map. Does that make sense?

Is anything close to that possible today? I suppose I could try to make some sort of multistep wizard. I.e. enter an address on one page, then present a map on the next, but I don't think that would be the best user experience.