atom handleMouseWheel

handleMousewheel(event) {
    this.holdingCtrl = event.ctrlKey;
    if (event.deltaY == 0 && event.deltaX == 0) {
      // inertial scroll has started
      this.inertialScroll = true;
    }
    clearTimeout(this.timer);
    this.timer = setTimeout(() => {
      // inertial scroll has stopped
      this.inertialScroll = false;
    }, 150);
    if (
      event.ctrlKey && !this.inertialScroll &&
      this.config.get('editor.zoomFontWhenCtrlScrolling') &&
      event.target.closest('atom-text-editor') != null
    ) {
      if (event.wheelDeltaY > 0) {
        this.model.increaseFontSize();
      } else if (event.wheelDeltaY < 0) {
        this.model.decreaseFontSize();
      }
      event.preventDefault();
      event.stopPropagation();
    }
  }