slawekkolodziej

Highcharts.Chart.prototype.callbacks.push(function(chart) {
  var hasTouch = document.documentElement.ontouchstart !== undefined,
      mouseTracker = chart.tracker,
      container = chart.container,
      mouseMove;

  mouseMove = function (e) {
    // let the system handle multitouch operations like two finger scroll
    // and pinching
    if (e && e.touches && e.touches.length > 1) {