Tooltip check for off screen

tooltip.component.ts

  checkOffScreen() {
    const tipElement = this.tipRef.nativeElement;
    const tipContent = this.tipContentRef.nativeElement;
    const { left: tipElementLeft } = tipElement.getBoundingClientRect();
    const { width: tipContentWidth } = tipContent.getBoundingClientRect();
    const { right: bodyRight } =  document.body.getBoundingClientRect();

    this.isLeftOffScreen = tipElementLeft < tipContentWidth / 2;
    this.isRightOffScreen = tipElementLeft + (tipContentWidth / 2) > bodyRight;
  }