"Drag a point" sample does not work on Android or iOS devices.

[mb12]

mapbox-gl-js version:v0.22.0

Steps to Trigger Behavior

The following sample does not work on either iOS or Android devices.

https://www.mapbox.com/mapbox-gl-js/example/drag-a-point/

Expected Behavior

Actual Behavior

[1ec5]

I’m guessing that’s because mouseDown() is guarded by isCursorOverPoint, which is only set based on a mousemove event that would never get fired on a touchscreen.

[kristfal]

This example also needs #2419 to work on mobile devices.