Indicate if clustering/unclustering in animationend-event

I need to perform different actions when markers are clustered/unclustered. However it seems that the animationend-event does not provide any information indicating the animation direction with it.

Are there any other approaches suggested or has this use case never occured before? If not, I’d like to propose that either an event-object will be passed to the callback or that two sub-event-types are being introduced - clusterend and unclusterend - that are getting fired together with animationend respectively.

[Azmisov]

I would like to open/close a popup when the a marker is clustered / unclustered. The popup is not attached to the marker directly… it is just associated with it. I have cached a value popup_marker and need to detect whether this marker has just been clustered / unclustered to toggle a popup.

I found out the unclustering always calls the iconCreateFunction (correct me if I’m wrong). So I added the open popup trigger to that. But I still need a way to detect when the marker gets clustered again. Any suggestions?

[Azmisov]

Yes, I believe I did. You can do something like this:

iconCreateFunction: function(c){
    if (!c.is_spiderfied){
        for (const n of c.getAllChildMarkers()){
            markerClustered(n);
            // or you can do something more specific like this:
            if (n == active_popup_marker)
                closeActivePopup();
        }
    }
}

There is no event I know to detect a marker being clustered directly. However, the iconCreateFunction gets called when it creates the meta “clustered” icon; the children of the meta icon are all the markers that were clustered.

The c.is_spiderfied flag I set manually based on the spiderfied and unspiderfied events. If you aren’t using the spiderfy feature, you can remove that part.