javascript - leafletjs - marker.bindPopup - keep all popups open

Question

I am having some difficulty keeping all the popups open with leaflet.

I have the following code in the a loop to add markers to a LayerGroup (ajax auto-updating).

var marker = L.marker([value.position.lat, value.position.lon],options).addTo(markers);
allpoints.push([value.position.lat, value.position.lon]);
marker.bindPopup("InfoWindow",{closeOnClick:false,closeButton:false}).openPopup();

It works great, except it only keeps the last popup open. I would like to keep all of them open. I did find an article on here (stackoverflow) regarding doing so with different marker names, however I have this in a loop. I did try putting L.marker into an array, but leaflet did not like that.

Any ideas?

Answer 1

You will need to override the openpopup method on the Leaflet Map, replacing it with a copy of this method, only comment out the line that calls this.closePopup();

On your page you would add

L.Map = L.Map.extend({
    openPopup: function (popup, latlng, options) { 
        if (!(popup instanceof L.Popup)) {
        var content = popup;

        popup = new L.Popup(options).setContent(content);
        }

        if (latlng) {
        popup.setLatLng(latlng);
        }

        if (this.hasLayer(popup)) {
        return this;
        }

        // NOTE THIS LINE : COMMENTING OUT THE CLOSEPOPUP CALL
        //this.closePopup(); 
        this._popup = popup;
        return this.addLayer(popup);        
    }
});

http://jsfiddle.net/yVLJf/37/

You can find the original Leaflet openPopup method here: https://github.com/Leaflet/Leaflet/blob/1acffc5a3d31010b7d613382ab2a5830ecee5dd5/src/layer/Popup.js#L290