react-teleportal/dist/portal.mjs

Alternative React portal implementation, giving you control over portal rendering.

// src/portal.tsx
import React, {
  createContext,
  useState,
  useCallback,
  useMemo,
  useContext,
  useId,
  useLayoutEffect,
  useEffect
} from "react";
var useIsomorphicLayoutEffect = typeof document === "undefined" ? useEffect : useLayoutEffect;
var PortalContext = createContext(null);
var PortalProvider = ({ children }) => {
  const [portalChildren, setPortalChildren] = useState(/* @__PURE__ */ new Map());
  const add = useCallback(
    (id, element) => {
      setPortalChildren((prevChildren) => {
        const nextChildren = new Map(prevChildren);
        nextChildren.set(id, element);
        return nextChildren;
      });
    },
    [setPortalChildren]
  );
  const remove = useCallback(
    (id) => {
      setPortalChildren((prevChildren) => {
        const nextChildren = new Map(prevChildren);
        nextChildren.delete(id);
        return nextChildren;
      });
    },
    [setPortalChildren]
  );
  const registry = useMemo(
    () => ({
      add,
      remove,
      children: portalChildren
    }),
    [add, remove, portalChildren]
  );
  return /* @__PURE__ */ React.createElement(PortalContext.Provider, {
    value: registry
  }, children);
};
var usePortalRegistry = () => {
  const context = useContext(PortalContext);
  if (context === null) {
    throw new Error(
      "`usePortalRegistry` must be used within a `<PortalProvider />`"
    );
  }
  return context;
};
var PortalOutlet = ({
  children: render = (nodes) => nodes
}) => {
  const registry = usePortalRegistry();
  const children = Array.from(registry.children.entries()).map(
    ([id, node]) => node.key === null ? React.cloneElement(node, { key: id }) : node
  );
  return /* @__PURE__ */ React.createElement(React.Fragment, null, render(children));
};
var Portal = ({ children }) => {
  const id = useId();
  const registry = usePortalRegistry();
  useIsomorphicLayoutEffect(() => {
    registry.add(id, children);
  }, [children]);
  useIsomorphicLayoutEffect(() => {
    return () => registry.remove(id);
  }, []);
  return null;
};
export {
  Portal,
  PortalOutlet,
  PortalProvider
};