@tanstack/solid-router/dist/esm/Transitioner.js

Modern and scalable routing for Solid applications

import { useRouter } from "./useRouter.js";
import { useRouterState } from "./useRouterState.js";
import { usePrevious } from "./utils.js";
import { getLocationChangeInfo, handleHashScroll, trimPathRight } from "@tanstack/router-core";
import * as Solid from "solid-js";
import { isServer } from "@tanstack/router-core/isServer";
//#region src/Transitioner.tsx
function Transitioner() {
	const router = useRouter();
	let mountLoadForRouter = {
		router,
		mounted: false
	};
	const isLoading = useRouterState({ select: ({ isLoading }) => isLoading });
	if (isServer ?? router.isServer) return null;
	const [isSolidTransitioning, startSolidTransition] = Solid.useTransition();
	const hasPendingMatches = useRouterState({ select: (s) => s.matches.some((d) => d.status === "pending") });
	const previousIsLoading = usePrevious(isLoading);
	const isAnyPending = () => isLoading() || isSolidTransitioning() || hasPendingMatches();
	const previousIsAnyPending = usePrevious(isAnyPending);
	const isPagePending = () => isLoading() || hasPendingMatches();
	const previousIsPagePending = usePrevious(isPagePending);
	router.startTransition = (fn) => {
		Solid.startTransition(() => {
			startSolidTransition(fn);
		});
	};
	Solid.onMount(() => {
		const unsub = router.history.subscribe(router.load);
		const nextLocation = router.buildLocation({
			to: router.latestLocation.pathname,
			search: true,
			params: true,
			hash: true,
			state: true,
			_includeValidateSearch: true
		});
		if (trimPathRight(router.latestLocation.publicHref) !== trimPathRight(nextLocation.publicHref)) router.commitLocation({
			...nextLocation,
			replace: true
		});
		Solid.onCleanup(() => {
			unsub();
		});
	});
	Solid.createRenderEffect(() => {
		Solid.untrack(() => {
			if (typeof window !== "undefined" && router.ssr || mountLoadForRouter.router === router && mountLoadForRouter.mounted) return;
			mountLoadForRouter = {
				router,
				mounted: true
			};
			const tryLoad = async () => {
				try {
					await router.load();
				} catch (err) {
					console.error(err);
				}
			};
			tryLoad();
		});
	});
	Solid.createRenderEffect(Solid.on([previousIsLoading, isLoading], ([previousIsLoading, isLoading]) => {
		if (previousIsLoading.previous && !isLoading) router.emit({
			type: "onLoad",
			...getLocationChangeInfo(router.state)
		});
	}));
	Solid.createComputed(Solid.on([isPagePending, previousIsPagePending], ([isPagePending, previousIsPagePending]) => {
		if (previousIsPagePending.previous && !isPagePending) router.emit({
			type: "onBeforeRouteMount",
			...getLocationChangeInfo(router.state)
		});
	}));
	Solid.createRenderEffect(Solid.on([isAnyPending, previousIsAnyPending], ([isAnyPending, previousIsAnyPending]) => {
		if (previousIsAnyPending.previous && !isAnyPending) {
			const changeInfo = getLocationChangeInfo(router.state);
			router.emit({
				type: "onResolved",
				...changeInfo
			});
			router.__store.setState((s) => ({
				...s,
				status: "idle",
				resolvedLocation: s.location
			}));
			if (changeInfo.hrefChanged) handleHashScroll(router);
		}
	}));
	return null;
}
//#endregion
export { Transitioner };

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