fix(renderless): fix get error window in micro app

packages/renderless/src/common/deps/dom.ts

@@ -11,6 +11,7 @@
  */
 
 import { hasOwn, isObject, isNull } from '../type'
+import globalConfig from '../global'
 
 const isServer = typeof window === 'undefined'
 const SPECIAL_CHARS_REGEXP = /([:\-_]+(.))/g
@@ -225,8 +226,9 @@ export const isVNode = (node: any) => node !== null && isObject(node) && hasOwn.
  * @returns visibleWidth ： 可视区宽度（不含滚动条）
  */
 export const getDomNode = () => {
-  let documentElement = document.documentElement
-  let bodyElem = document.body
+  const viewportWindow = globalConfig.viewportWindow || window
+  let documentElement = viewportWindow.document.documentElement
+  let bodyElem = viewportWindow.document.body
 
   return {
     scrollTop: documentElement.scrollTop || bodyElem.scrollTop,

packages/renderless/src/common/deps/popper.ts

@@ -12,6 +12,7 @@
 
 import { on, off } from './dom'
 import PopupManager from './popup-manager'
+import globalConfig from '../global'
 import { typeOf } from '../type'
 
 const positions = ['left', 'right', 'top', 'bottom']
@@ -752,7 +753,8 @@ class Popper {
       let scrollTop = isFixed ? 0 : getScrollTopValue(scrollParent)
       let scrollLeft = isFixed ? 0 : getScrollLeftValue(scrollParent)
 
-      const viewportWindow = PopupManager.viewportWindow || window
+      // PopupManager.viewportWindow是为了兼容之前已经采用此方法兼容微前端的用户，后续需要采用globalConfig.viewportWindow
+      const viewportWindow = globalConfig.viewportWindow || PopupManager.viewportWindow || window
       boundaries = {
         top: 0 - (offsetParentRect.top - scrollTop),
         right: viewportWindow.document.documentElement.clientWidth - (offsetParentRect.left - scrollLeft),

packages/renderless/src/common/global.ts

@@ -0,0 +1,5 @@
+const globalConfig = {
+  viewportWindow: null // 获取真实视口的window，解决在微前端中某些bug
+}
+
+export default globalConfig