maproulette3 Broken map view behavior

Currently, when viewing tasks on a map, any map movement (scrolling or zooming) triggers data reloading. When reload is complete, map is moved again to where it was when download started (to show all loaded data maybe).

This cause very annoying jumps and blinking when you just continue to scroll or zoom map before each download operation completes. Even more, it can cause a feedback loop (video below).

https://user-images.githubusercontent.com/465493/137378333-c8497de4-73f5-4baf-952f-9a2d23aed21e.mp4

Proposed solution: don't move the map after downloading data.

Oct 14 '21 18:10 Arcturuss

Yea, thanks for reporting, we have noticed this behavior as well and need to come up with a way to make it less annoying.

Oct 26 '21 18:10 mvexel

Here is the map re-centering itself in an infinite loop

https://user-images.githubusercontent.com/120452/170572922-61049e64-e827-423f-899f-4b5b2765f361.mov

May 26 '22 20:05 mvexel

raising priority

Sep 13 '22 19:09 jschwarz2030

A proposed fix is currently testable in staging (https://staging.maproulette.org/). I haven't been able to reproduce the infinite loop.

Sep 28 '22 20:09 jschwarz2030