Method _getViewPort

codebase/sources/dhtmlxscheduler.js:20866–20868

()

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