building-rotavo-26.js

_onTouchstart(e) {
  e.preventDefault();
  this._touchX = e.changedTouches[0].clientX;
  this._touchY = e.changedTouches[0].clientY;
  this._rotationStart();
  this.addEventListener('touchmove', this._onTouchmove);
  this.addEventListener('touchend', this._onTouchend);
  this.addEventListener('touchcancel', this._onTouchend);
}
_onTouchmove(e) {
  e.preventDefault();
  this._touchX = e.targetTouches[0].clientX;
  this._touchY = e.targetTouches[0].clientY;
  this._rotationChange();
}
_onTouchend(e) {
  e.preventDefault();
  this.removeEventListener('touchmove', this._onTouchmove);
  this.removeEventListener('touchend', this._onTouchend);
  this.removeEventListener('touchcancel', this._onTouchend);
  this._rotationEnd();
}