Method _getViewPort

codebase/sources/dhtmlxscheduler.es.js:20862–20864

()

    return "clientX" in event2 && "clientY" in event2;
  }
  _getViewPort() {
    return this._root || document.body;
  }
  _calculateTooltipPosition(event2) {
    const scheduler2 = this._scheduler;
    const domHelpers = scheduler2.$domHelpers;