javascript - Get Position of Mouse Cursor on Mouseover of Google Maps V3 API Marker

Question

I am trying to make a div visible at the position of the cursor when the cursor mouseover a marker using jQuery. Its kind of like a tooltip. However I cannot seem to figure out how to get the X/Y coordinates of the point below the cursor.

Current Code:

google.maps.event.addListener(marker, "mouseover", function(event) {

    $("#tooltip").css({
        position: "absolute",
        top: event.pageY,
        left: event.pageX
    }).toggle();

I believe event does not have the properties pageY and pageX like in the event in jQuery.

How do I get the position of the mouse cursor?

Answer 1

This is an extension of my previous answer regarding the computation of the pixel positions (Google maps API v3). Introduce a "global" variable overlay:

var overlay = new google.maps.OverlayView();
overlay.draw = function() {};
overlay.setMap(map); // 'map' is new google.maps.Map(...)

Use overlay in the listener to get the projection and the pixel coordinates:

google.maps.event.addListener(marker, 'mouseover', function() {
    var projection = overlay.getProjection(); 
    var pixel = projection.fromLatLngToContainerPixel(marker.getPosition());
    // use pixel.x, pixel.y ... (after some rounding)
}); 

You may also have a look at projection.fromLatLngToDivPixel().