google maps api v3 + infoBubble in markerClusterer

Question

I was trying to add an infoBubble to a markerCluster in the \'clusterclick\' event but the infoBubble.Open method ask for a \'marker\' parameter to bind with. The problem is

Answer 1

Add this to line 93 (beneath the other option fields)

if (options['pixelOffset'] == undefined) {
    options['pixelOffset'] = this.PIXEL_OFFSET_;
}

Around line 182, add this

InfoBubble.prototype.PIXEL_OFFSET_ = [0.0];

Around line 908, add this:

top -= this.get('pixelOffset')[1];  // Add offset Y.
left -= this.get('pixelOffset')[0]; // Add offset X.

Above lines should be placed above:

this.bubble_.style['top'] = this.px(top);
this.bubble_.style['left'] = this.px(left);

---

Now in your construction for options you could do

var popupWindowOptions = {
    backgroundColor: '#2B2B2B',
    arrowStyle: 0,
    pixelOffset: [0,16]
 };

 this.popupWindow = new InfoBubble(popupWindowOptions);