// @flow
import getBoundingClientRect from './getBoundingClientRect';
import getDocumentElement from './getDocumentElement';
import getWindowScroll from './getWindowScroll';
export default function getWindowScrollBarX(element: Element): number {
// If <html> has a CSS width greater than the viewport, then this will be
// incorrect for RTL.
// Popper 1 is broken in this case and never had a bug report so let's assume
// it's not an issue. I don't think anyone ever specifies width on <html>
// anyway.
// Browsers where the left scrollbar doesn't cause an issue report `0` for
// this (e.g. Edge 2019, IE11, Safari)
return (
getBoundingClientRect(getDocumentElement(element)).left +
getWindowScroll(element).scrollLeft
);
}