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frontend/node_modules/@rc-component/trigger/es/hooks/useWatch.js

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+import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
+import useLayoutEffect from "rc-util/es/hooks/useLayoutEffect";
+import { collectScroller, getWin } from "../util";
+export default function useWatch(open, target, popup, onAlign, onScroll) {
+  useLayoutEffect(function () {
+    if (open && target && popup) {
+      var targetElement = target;
+      var popupElement = popup;
+      var targetScrollList = collectScroller(targetElement);
+      var popupScrollList = collectScroller(popupElement);
+      var win = getWin(popupElement);
+      var mergedList = new Set([win].concat(_toConsumableArray(targetScrollList), _toConsumableArray(popupScrollList)));
+      function notifyScroll() {
+        onAlign();
+        onScroll();
+      }
+      mergedList.forEach(function (scroller) {
+        scroller.addEventListener('scroll', notifyScroll, {
+          passive: true
+        });
+      });
+      win.addEventListener('resize', notifyScroll, {
+        passive: true
+      });
+
+      // First time always do align
+      onAlign();
+      return function () {
+        mergedList.forEach(function (scroller) {
+          scroller.removeEventListener('scroll', notifyScroll);
+          win.removeEventListener('resize', notifyScroll);
+        });
+      };
+    }
+  }, [open, target, popup]);
+}