function handleMouseMove(e) {
            const closestPoint = getClosestPoint(e);
            const pointData = getPointData(closestPoint);

            if (hasCrossHairs) {
                drawDataPointsValueHighlights(pointData);
            }

            highlightDataPoint(pointData);

            dispatcher.call('customMouseMove', e, pointData, d3Selection.mouse(e), [chartWidth, chartHeight]);
        }
Handler called on mousemove event
@return {void}
@private