feat: 氧化铝数字孪生系统监控大屏完成

node_modules/react-popper/lib/cjs/Manager.js.flow

@@ -0,0 +1,38 @@
+// @flow strict
+import * as React from 'react';
+
+export const ManagerReferenceNodeContext: React.Context<?Element>  = React.createContext();
+export const ManagerReferenceNodeSetterContext: React.Context<
+  void | ((?Element) => void)
+> = React.createContext();
+
+export type ManagerProps = $ReadOnly<{
+  children: React.Node,
+}>;
+
+export function Manager({ children }: ManagerProps): React.Node {
+  const [referenceNode, setReferenceNode] = React.useState<?Element>(null);
+
+  const hasUnmounted = React.useRef(false);
+  React.useEffect(() => {
+    return () => {
+      hasUnmounted.current = true;
+    };
+  }, []);
+
+  const handleSetReferenceNode = React.useCallback((node) => {
+    if (!hasUnmounted.current) {
+      setReferenceNode(node);
+    }
+  }, []);
+
+  return (
+    <ManagerReferenceNodeContext.Provider value={referenceNode}>
+      <ManagerReferenceNodeSetterContext.Provider
+        value={handleSetReferenceNode}
+      >
+        {children}
+      </ManagerReferenceNodeSetterContext.Provider>
+    </ManagerReferenceNodeContext.Provider>
+  );
+}