モバイル版Html5におけるBaidu地図のクリックイベント

function initMap(baseData) {
    var mp = new BMap.Map('map');
    var point = new BMap.
      baseData.data.gardenLongitude,
      baseData.data.gardenLatitude
    );

    mp.centerAndZoom(point, 15);

    // Save the touch object information
    var obj = {};

    mp.addEventListener('touchstart', function (e) {
      obj.e = e.changedTouches ? e.changedTouches[0] : e;
      obj.target = e.target;
      obj.time = Date.now();
      obj.X = obj.e.pageX;
      obj.Y = obj.e.pageY;
    });

    mp.addEventListener('touchend', function (e) {
      obj.e = e.changedTouches ? e.changedTouches[0] : e;
      if (
        obj.target === e.target &&
        
        // greater than 750 can be seen as a long press
        ((Date.now() - obj.time) < 750) &&
        
        // Apply the Pythagorean theorem, if the point of touchstart to the point of touchend is less than 15, it can be considered as a map clicked
        (Math.sqrt(Math.pow(obj.X - obj.e.pageX, 2) + Math.pow(obj.Y - obj.e.pageY, 2)) < 15)
      ) {
        // The map is clicked and some action is performed
        doSomething();
      }
    });
  }