fix: virtual scroll ref (#1217)

* fix: virtual scroll ref

* Update Sticky.spec.jsx

Author: zombieJ

package.json

@@ -57,7 +57,7 @@
     "@rc-component/context": "^1.4.0",
     "classnames": "^2.2.5",
     "rc-resize-observer": "^1.1.0",
-    "rc-util": "^5.41.0",
+    "rc-util": "^5.44.3",
     "rc-virtual-list": "^3.14.2"
   },
   "devDependencies": {

src/stickyScrollBar.tsx

@@ -1,12 +1,12 @@
 import { useContext } from '@rc-component/context';
 import classNames from 'classnames';
 import addEventListener from 'rc-util/lib/Dom/addEventListener';
-import { getOffset } from 'rc-util/lib/Dom/css';
 import getScrollBarSize from 'rc-util/lib/getScrollBarSize';
 import * as React from 'react';
 import TableContext from './context/TableContext';
 import { useLayoutState } from './hooks/useFrame';
 import raf from 'rc-util/lib/raf';
+import { getOffset } from './utils/offsetUtil';
 
 interface StickyScrollBarProps {
   scrollBodyRef: React.RefObject<HTMLDivElement>;

src/utils/offsetUtil.ts

@@ -0,0 +1,20 @@
+import { getDOM } from 'rc-util/lib/Dom/findDOMNode';
+
+// Copy from `rc-util/Dom/css.js`
+export function getOffset(node: HTMLElement | Window) {
+  const element = getDOM(node);
+  const box = element.getBoundingClientRect();
+  const docElem = document.documentElement;
+
+  // < ie8 not support win.pageXOffset, use docElem.scrollLeft instead
+  return {
+    left:
+      box.left +
+      (window.pageXOffset || docElem.scrollLeft) -
+      (docElem.clientLeft || document.body.clientLeft || 0),
+    top:
+      box.top +
+      (window.pageYOffset || docElem.scrollTop) -
+      (docElem.clientTop || document.body.clientTop || 0),
+  };
+}