add hooks for event handling

[chrisdrackett]

https://developer.apple.com/documentation/mapkitjs/mapkit/map/handling_map_events

[torrao]

@chrisdrackett

how are planing of exposing the different events handlers?

Invoke like this:

<MapKit regionChangeStartEventHandler={(event) => console.log("Region Change Started");}

and then adding it to the map on updateMapProps?

if (this.props.regionChangeStartEvent) {
    this.map.addEventListener("region-change-start", this.props.regionChangeStartEvent);
}

[chrisdrackett]

yeah, I think this is probably the best way to go. I was thinking of using language along the lines of onRegionChangeStart to fit with other events in react.

[chrisdrackett]

I'm redoing this as a hook that provides the map object directly. This way users can use the map to add or remove event listeners themselves.