Make the map "bounce" when reaching "maxBounds"

[gmaclennan]

mapbox-gl-js version: 0.24.0

Steps to Trigger Behavior

1. Set maxBounds on a map
2. Try to zoom or pan out of max bounds

Actual/Expected/Desired Behavior

Once reaching the maxBounds the map will not move, it appears to the user that interactivity is not working. In my opinion it would be better if maxBounds acted like scroll on mobile: it would allow a little bit of "give" / overscroll beyond the max bounds / zoom and bounce back.

[1ec5]

A bouncing effect would be useful for the default maximum/minimum latitudes and maximum pitch as well.

/ref mapbox/mapbox-gl-native#2191

[ryanleichty]

That exact feature has been implemented here: http://www.walkerart.org/minnesotabydesign

I haven't looked at the code yet, but I'm assuming they built in the function themselves.

[tmcw]

That's a Leaflet/Mapbox.js map, not Mapbox GL JS.

[ryanleichty]

But it at least provides a visual example of the desired effect.