IntlayerでReact Router v7（fs-routes）を翻訳する | 国際化（i18n）

import { IntlayerProvider } from "react-intlayer";import { Outlet } from "react-router";import { useI18nHTMLAttributes } from "~/hooks/useI18nHTMLAttributes";import type { Route } from "./+types/($locale)._layout";export default function RootLayout({ params }: Route.ComponentProps) {  useI18nHTMLAttributes();  const { locale } = params;  return (    <IntlayerProvider locale={locale}>      <Outlet />    </IntlayerProvider>  );}

import { useIntlayer } from "react-intlayer";import { LocalizedLink } from "~/components/localized-link";import type { Route } from "./+types/($locale)._index";export default function Page() {  const { title, description, aboutLink } = useIntlayer("page");  return (    <div>      <h1>{title}</h1>      <p>{description}</p>      <nav>        <LocalizedLink to="/about">{aboutLink}</LocalizedLink>      </nav>    </div>  );}

import { useIntlayer } from "react-intlayer";import { LocalizedLink } from "~/components/localized-link";import type { Route } from "./+types/($locale).about";export default function AboutPage() {  const { title, content, homeLink } = useIntlayer("about");  return (    <div>      <h1>{title}</h1>      <p>{content}</p>      <nav>        <LocalizedLink to="/">{homeLink}</LocalizedLink>      </nav>    </div>  );}

import { t, type Dictionary } from "intlayer";const pageContent = {  key: "page",  content: {    title: t({      en: "Welcome to React Router v7 + Intlayer",      es: "Bienvenido a React Router v7 + Intlayer",      fr: "Bienvenue sur React Router v7 + Intlayer",    }),    description: t({      en: "Build multilingual applications with ease using React Router v7 and Intlayer.",      es: "Cree aplicaciones multilingües fácilmente usando React Router v7 y Intlayer.",      fr: "Créez des applications multilingues facilement avec React Router v7 et Intlayer.",    }),    aboutLink: t({      en: "Learn About Us",      es: "Aprender Sobre Nosotros",      fr: "En savoir plus sur nous",    }),  },} satisfies Dictionary;export default pageContent;

import { t, type Dictionary } from "intlayer";const aboutContent = {  key: "about",  content: {    title: t({      en: "About Us",      es: "Sobre Nosotros",      fr: "À propos de nous",    }),    content: t({      en: "This is the about page content.",      es: "Este es el contenido de la página de información.",      fr: "Ceci est le contenu de la page à propos.",    }),    homeLink: t({      en: "Home",      es: "Inicio",      fr: "Accueil",    }),  },} satisfies Dictionary;export default aboutContent;

import type { FC } from "react";import { getLocalizedUrl, type LocalesValues } from "intlayer";import { useLocale } from "react-intlayer";import { Link, type LinkProps, type To } from "react-router";// 外部リンクかどうかを判定する関数const isExternalLink = (to: string) => /^(https?:)?\/\//.test(to);// 指定されたURLをロケールに応じてローカライズする関数export const locacalizeTo = (to: To, locale: LocalesValues): To => {  if (typeof to === "string") {    if (isExternalLink(to)) {      return to;    }    return getLocalizedUrl(to, locale);  }  if (isExternalLink(to.pathname ?? "")) {    return to;  }  return {    ...to,    pathname: getLocalizedUrl(to.pathname ?? "", locale),  };};// ロケール対応のリンクコンポーネントexport const LocalizedLink: FC<LinkProps> = (props) => {  const { locale } = useLocale();  return <Link {...props} to={locacalizeTo(props.to, locale)} />;};

import { useLocale } from "react-intlayer";import { type NavigateOptions, type To, useNavigate } from "react-router";import { locacalizeTo } from "~/components/localized-link";export const useLocalizedNavigate = () => {  const navigate = useNavigate();  const { locale } = useLocale();  const localizedNavigate = (to: To, options?: NavigateOptions) => {    const localedTo = locacalizeTo(to, locale);    navigate(localedTo, options);  };  return localizedNavigate;};

import type { FC } from "react";import {  getHTMLTextDir,  getLocaleName,  getLocalizedUrl,  getPathWithoutLocale,  Locales,} from "intlayer";import { useIntlayer, useLocale } from "react-intlayer";import { Link, useLocation } from "react-router";export const LocaleSwitcher: FC = () => {  const { localeSwitcherLabel } = useIntlayer("locale-switcher");  const { pathname } = useLocation();  const { availableLocales, locale } = useLocale();  const pathWithoutLocale = getPathWithoutLocale(pathname);  return (    <ol>      {availableLocales.map((localeItem) => (        <li key={localeItem}>          <Link            aria-current={localeItem === locale ? "page" : undefined}            aria-label={`${localeSwitcherLabel.value} ${getLocaleName(localeItem)}`}            reloadDocument // 新しいロケールを適用するためにページを再読み込み            to={getLocalizedUrl(pathWithoutLocale, localeItem)}          >            <span>              {/* ロケール - 例: FR */}              {localeItem}            </span>            <span>              {/* 自身のロケールでの言語名 - 例: Français */}              {getLocaleName(localeItem, locale)}            </span>            <span dir={getHTMLTextDir(localeItem)} lang={localeItem}>              {/* 現在のロケールでの言語名 - 例: 現在のロケールがLocales.SPANISHの場合のFrancés */}              {getLocaleName(localeItem)}            </span>            <span dir="ltr" lang={Locales.ENGLISH}>              {/* 英語での言語名 - 例: French */}              {getLocaleName(localeItem, Locales.ENGLISH)}            </span>          </Link>        </li>      ))}    </ol>  );};

import { getHTMLTextDir } from "intlayer";import { useEffect } from "react";import { useLocale } from "react-intlayer";export const useI18nHTMLAttributes = () => {  const { locale } = useLocale();  useEffect(() => {    document.documentElement.lang = locale;    document.documentElement.dir = getHTMLTextDir(locale);  }, [locale]);};