Clicking a cluster zooms on marker outside it if the marker has a visible infoWindow

[smohadjer]

When the infoWindow of a marker is visible and we click on a cluster somewhere else on the map, the map zooms and centers on the marker with infoWindow instead of zooming and centering on markers inside the cluster.

[wangela]

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@smohadjer Thank you for opening this issue. 🙏
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[smohadjer]

If I disable infoWindow's auto panning by setting disableAutoPan to true, this bug doesn't happen, so I think the problem happens because a click on cluster pushes the visible infoWindow out of map's visible viewport, so perhaps the bug is not in MarkerClusterer, but in how AutoPan is implemented by Google Maps.

[HarrisonMaindonald]

@smohadjer While this bug is active, I was able to create a work around to this by adding a click event listener to the MarkerClusterer and use that event listener to close the active infoWindow

[smohadjer]

@HarrisonMaindonald I already tried that workaround, but that doesn't fix the problem completely. For example if infowindow is visible for a marker and you zoom out so that marker goes inside a cluster, now the call to close the infowindow won't close it anymore and if you click on a cluster it will still zoom and center the map on wrong marker. To solve the problem I ended up disabling autopan inside cluster's click handler before map.fitBounds() is called and then enabling it after map.fitBounds() call with a delay.

    const onClusterClickHandler = (event, cluster, map) => {
      // close any open infoWindow so that map doesn't center on wrong marker
      infoWindow.close();

      // disable AutoPan to avoid bug
      infoWindow.setOptions({
        disableAutoPan: true
      });

      map.fitBounds(cluster.bounds);

      // enable AutoPan after cluster has finished centering the map
      window.setTimeout(() => {
        infoWindow.setOptions({
          disableAutoPan: false
        });
      }, 500);
    };