Method getTargetRect

ads/inabox/position-observer.js:117–141

* Get the element's layout rect relative to the viewport. Attempt to walk up * the DOM and add the offset of all nested parent iframes since * getBoundingClientRect() is only relative to the immediate window. Assumes * that all parent frames are friendly and can be inspected (because the

(element)

   * @return {!LayoutRectDef}
   */
  getTargetRect(element) {
    let targetRect = layoutRectFromDomRect(
      element./*OK*/ getBoundingClientRect()
    );
    const parentWin = element.ownerDocument.defaultView;
    for (
      let j = 0, tempWin = parentWin;
      j < 10 &&
      // win can be null if the ad iframe is already destroyed
      tempWin &&
      tempWin != this.win_ &&
      tempWin != this.win_.top;
      j++, tempWin = tempWin.parent
    ) {
      const parentFrameRect = layoutRectFromDomRect(
        tempWin.frameElement./*OK*/ getBoundingClientRect()
      );
      targetRect = moveLayoutRect(
        targetRect,
        parentFrameRect.left,
        parentFrameRect.top
      );
    }
    return targetRect;
  }
}

/**