getDocumentRect.js.flow
5d92ed19fb80paginated-inlines

getDocumentRect.js.flow
View Options

			// @flow
			import type { Rect } from '../types';
			import getDocumentElement from './getDocumentElement';
			import getComputedStyle from './getComputedStyle';
			import getWindowScrollBarX from './getWindowScrollBarX';
			import getWindowScroll from './getWindowScroll';
			import { max } from '../utils/math';

			// Gets the entire size of the scrollable document area, even extending outside
			// of the `<html>` and `<body>` rect bounds if horizontally scrollable
			export default function getDocumentRect(element: HTMLElement): Rect {
			const html = getDocumentElement(element);
			const winScroll = getWindowScroll(element);
			const body = element.ownerDocument?.body;

			const width = max(
			html.scrollWidth,
			html.clientWidth,
			body ? body.scrollWidth : 0,
			body ? body.clientWidth : 0
			);
			const height = max(
			html.scrollHeight,
			html.clientHeight,
			body ? body.scrollHeight : 0,
			body ? body.clientHeight : 0
			);

			let x = -winScroll.scrollLeft + getWindowScrollBarX(element);
			const y = -winScroll.scrollTop;

			if (getComputedStyle(body \|\| html).direction === 'rtl') {
			x += max(html.clientWidth, body ? body.clientWidth : 0) - width;
			}

			return { width, height, x, y };
			}