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leaflet fork for copy edit / bug fixes forked from leaflet.pub/leaflet
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TypeScript
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455"use client";import { useMemo, useSyncExternalStore } from "react";
/** * The query string, read from `window.location` instead of the router. * * Published pages are prerendered without a request URL, so a render-time * read of the query string (`useSearchParams()`) either pulls the whole * subtree out of the static HTML — it renders on the client under the nearest * Suspense boundary — or 500s when there is no boundary. This returns no * params during SSR and hydration, and the real ones in a re-render right * after mount. * * Writers of the params we read this way (the interaction drawer, the * members-only paywall) call `history.replaceState` directly, so the store * observes the history methods as well as popstate. */export const useClientSearchParams = () => { let search = useSyncExternalStore(subscribe, getSearch, getServerSearch); return useMemo(() => new URLSearchParams(search), [search]);};
const listeners = new Set<() => void>();const emit = () => listeners.forEach((l) => l());
let observing = false;const observe = () => { if (observing) return; observing = true; window.addEventListener("popstate", emit); patch("pushState"); patch("replaceState");};
const patch = (method: "pushState" | "replaceState") => { let original = window.history[method].bind(window.history); window.history[method] = ( ...args: Parameters<History["replaceState"]> ): void => { original(...args); emit(); };};
const subscribe = (listener: () => void) => { observe(); listeners.add(listener); return () => { listeners.delete(listener); };};
const getSearch = () => window.location.search;const getServerSearch = () => "";