2026-09-11 02:46:56 +02:00
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import { Link } from "react-router";
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import {
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getCounterpartLocale,
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getCounterpartPath,
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getDirection,
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LOCALE_ENDONYM,
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LOCALE_SHORT_LABEL,
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type Locale,
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} from "./locale-path";
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/* Reinforces the global :focus-visible rule in app.css with the same tier-2
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focus tokens, so the ring is visible even if a caller overrides `outline`. */
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const FOCUS_RING =
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"focus-visible:outline-[color:var(--focus-ring-color)] " +
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"focus-visible:outline-[length:var(--focus-ring-width)] " +
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"focus-visible:outline-offset-[var(--focus-ring-offset)]";
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/** Padding presets. Kept as a prop rather than an overridable class, because
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two padding utilities on one element are resolved by the order Tailwind
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emits them in, not by the order they appear in the class attribute. */
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const SIZE_CLASSES = {
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sm: "px-sm py-2xs",
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md: "min-h-[44px] px-md py-xs",
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} as const;
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export type LanguageSwitcherSize = keyof typeof SIZE_CLASSES;
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export interface LanguageSwitcherProps {
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/** The locale the reader is currently on. */
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locale: Locale;
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/** Current pathname, e.g. "/en/news-and-updates". */
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pathname: string;
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/** Query string to carry across the switch. Usually `location.search`. */
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search?: string;
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/** Fragment to carry across the switch. Usually `location.hash`. */
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hash?: string;
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/**
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* Navigate with a full document request instead of a client transition.
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* Off by default: the root route re-renders <html lang>/<html dir> on a
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* client navigation, so a soft transition already lands on a correct
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* document. Turn it on if a page needs the server to re-render first.
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*/
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reloadDocument?: boolean;
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2026-09-16 20:32:56 +02:00
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/** "sm" for a compact pill, "md" for a 44px touch target in the drawer. */
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2026-09-11 02:46:56 +02:00
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size?: LanguageSwitcherSize;
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className?: string;
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}
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/**
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* Compact language toggle: shows the two-letter code of the OTHER language
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* ("AR" while reading English, "EN" while reading Arabic) and links to the
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* same page under that locale, preserving the rest of the path.
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*
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2026-09-16 20:32:56 +02:00
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* The mobile drawer uses this, where a spelled-out target is clearer than an
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* icon. The desktop bar uses <LanguageMenu />, the globe with a dropdown.
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2026-09-11 02:46:56 +02:00
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*/
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export function LanguageSwitcher({
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locale,
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pathname,
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search,
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hash,
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reloadDocument = false,
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size = "sm",
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className = "",
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}: LanguageSwitcherProps) {
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const target = getCounterpartLocale(locale);
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const href = getCounterpartPath(pathname, locale, { search, hash });
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return (
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<Link
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to={href}
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reloadDocument={reloadDocument}
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hrefLang={target}
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lang={target}
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dir={getDirection(target)}
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aria-label={LOCALE_ENDONYM[target]}
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title={LOCALE_ENDONYM[target]}
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data-language-switcher={target}
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className={[
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"label-md inline-flex shrink-0 items-center justify-center rounded-pill",
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"border border-[var(--border-default)]",
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SIZE_CLASSES[size],
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"text-[var(--text-primary)] no-underline",
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"transition-colors duration-[var(--motion-duration-fast)]",
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"ease-[var(--motion-ease-standard)]",
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"hover:border-[var(--border-strong)] hover:bg-[var(--surface-muted)]",
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FOCUS_RING,
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className,
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]
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.filter(Boolean)
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.join(" ")}
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>
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<span aria-hidden="true">{LOCALE_SHORT_LABEL[target]}</span>
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</Link>
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);
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}
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export default LanguageSwitcher;
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/* ---------------------------------------------------------------------------
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USAGE
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---------------------------------------------------------------------------
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// Reading English at /en/news-and-updates?page=2 -> links to
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// /ar/news-and-updates?page=2 and renders the pill "AR".
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<LanguageSwitcher locale="en" pathname="/en/news-and-updates" search="?page=2" />
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// Reading Arabic -> renders "EN", links to /en/...
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<LanguageSwitcher locale="ar" pathname="/ar/contact" />
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// Inside the mobile drawer, where a 44px touch target is wanted:
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<LanguageSwitcher locale={locale} pathname={pathname} size="md" />
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// Force a document navigation (server re-renders <html lang>/<html dir>):
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<LanguageSwitcher locale={locale} pathname={pathname} reloadDocument />
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------------------------------------------------------------------------ */
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