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'use client';
import { jsx as _jsx } from "react/jsx-runtime";
import React, { createContext, useContext, useOptimistic, useRef } from 'react';
import { formatUrl } from '../../shared/lib/router/utils/format-url';
import { AppRouterContext } from '../../shared/lib/app-router-context.shared-runtime';
import { useMergedRef } from '../use-merged-ref';
import { isAbsoluteUrl } from '../../shared/lib/utils';
import { addBasePath } from '../add-base-path';
import { warnOnce } from '../../shared/lib/utils/warn-once';
import { IDLE_LINK_STATUS, mountLinkInstance, onNavigationIntent, unmountLinkForCurrentNavigation, unmountPrefetchableInstance } from '../components/links';
import { isLocalURL } from '../../shared/lib/router/utils/is-local-url';
import { FetchStrategy } from '../components/segment-cache/types';
import { errorOnce } from '../../shared/lib/utils/error-once';
function isModifiedEvent(event) {
const eventTarget = event.currentTarget;
const target = eventTarget.getAttribute('target');
return target && target !== '_self' || event.metaKey || event.ctrlKey || event.shiftKey || event.altKey || // triggers resource download
event.nativeEvent && event.nativeEvent.which === 2;
}
function linkClicked(e, href, as, linkInstanceRef, replace, scroll, onNavigate) {
if (typeof window !== 'undefined') {
const { nodeName } = e.currentTarget;
// anchors inside an svg have a lowercase nodeName
const isAnchorNodeName = nodeName.toUpperCase() === 'A';
if (isAnchorNodeName && isModifiedEvent(e) || e.currentTarget.hasAttribute('download')) {
// ignore click for browser’s default behavior
return;
}
if (!isLocalURL(href)) {
if (replace) {
// browser default behavior does not replace the history state
// so we need to do it manually
e.preventDefault();
location.replace(href);
}
// ignore click for browser’s default behavior
return;
}
e.preventDefault();
if (onNavigate) {
let isDefaultPrevented = false;
onNavigate({
preventDefault: ()=>{
isDefaultPrevented = true;
}
});
if (isDefaultPrevented) {
return;
}
}
const { dispatchNavigateAction } = require('../components/app-router-instance');
React.startTransition(()=>{
dispatchNavigateAction(as || href, replace ? 'replace' : 'push', scroll ?? true, linkInstanceRef.current);
});
}
}
function formatStringOrUrl(urlObjOrString) {
if (typeof urlObjOrString === 'string') {
return urlObjOrString;
}
return formatUrl(urlObjOrString);
}
/**
* A React component that extends the HTML `<a>` element to provide
* [prefetching](https://nextjs.org/docs/app/building-your-application/routing/linking-and-navigating#2-prefetching)
* and client-side navigation. This is the primary way to navigate between routes in Next.js.
*
* @remarks
* - Prefetching is only enabled in production.
*
* @see https://nextjs.org/docs/app/api-reference/components/link
*/ export default function LinkComponent(props) {
const [linkStatus, setOptimisticLinkStatus] = useOptimistic(IDLE_LINK_STATUS);
let children;
const linkInstanceRef = useRef(null);
const { href: hrefProp, as: asProp, children: childrenProp, prefetch: prefetchProp = null, passHref, replace, shallow, scroll, onClick, onMouseEnter: onMouseEnterProp, onTouchStart: onTouchStartProp, legacyBehavior = false, onNavigate, ref: forwardedRef, unstable_dynamicOnHover, ...restProps } = props;
children = childrenProp;
if (legacyBehavior && (typeof children === 'string' || typeof children === 'number')) {
children = /*#__PURE__*/ _jsx("a", {
children: children
});
}
const router = React.useContext(AppRouterContext);
const prefetchEnabled = prefetchProp !== false;
const fetchStrategy = prefetchProp !== false ? getFetchStrategyFromPrefetchProp(prefetchProp) : FetchStrategy.PPR;
if (process.env.NODE_ENV !== 'production') {
function createPropError(args) {
return Object.defineProperty(new Error(`Failed prop type: The prop \`${args.key}\` expects a ${args.expected} in \`<Link>\`, but got \`${args.actual}\` instead.` + (typeof window !== 'undefined' ? "\nOpen your browser's console to view the Component stack trace." : '')), "__NEXT_ERROR_CODE", {
value: "E319",
enumerable: false,
configurable: true
});
}
// TypeScript trick for type-guarding:
const requiredPropsGuard = {
href: true
};
const requiredProps = Object.keys(requiredPropsGuard);
requiredProps.forEach((key)=>{
if (key === 'href') {
if (props[key] == null || typeof props[key] !== 'string' && typeof props[key] !== 'object') {
throw createPropError({
key,
expected: '`string` or `object`',
actual: props[key] === null ? 'null' : typeof props[key]
});
}
} else {
// TypeScript trick for type-guarding:
const _ = key;
}
});
// TypeScript trick for type-guarding:
const optionalPropsGuard = {
as: true,
replace: true,
scroll: true,
shallow: true,
passHref: true,
prefetch: true,
unstable_dynamicOnHover: true,
onClick: true,
onMouseEnter: true,
onTouchStart: true,
legacyBehavior: true,
onNavigate: true
};
const optionalProps = Object.keys(optionalPropsGuard);
optionalProps.forEach((key)=>{
const valType = typeof props[key];
if (key === 'as') {
if (props[key] && valType !== 'string' && valType !== 'object') {
throw createPropError({
key,
expected: '`string` or `object`',
actual: valType
});
}
} else if (key === 'onClick' || key === 'onMouseEnter' || key === 'onTouchStart' || key === 'onNavigate') {
if (props[key] && valType !== 'function') {
throw createPropError({
key,
expected: '`function`',
actual: valType
});
}
} else if (key === 'replace' || key === 'scroll' || key === 'shallow' || key === 'passHref' || key === 'legacyBehavior' || key === 'unstable_dynamicOnHover') {
if (props[key] != null && valType !== 'boolean') {
throw createPropError({
key,
expected: '`boolean`',
actual: valType
});
}
} else if (key === 'prefetch') {
if (props[key] != null && valType !== 'boolean' && props[key] !== 'auto') {
throw createPropError({
key,
expected: '`boolean | "auto"`',
actual: valType
});
}
} else {
// TypeScript trick for type-guarding:
const _ = key;
}
});
}
if (process.env.NODE_ENV !== 'production') {
if (props.locale) {
warnOnce('The `locale` prop is not supported in `next/link` while using the `app` router. Read more about app router internalization: https://nextjs.org/docs/app/building-your-application/routing/internationalization');
}
if (!asProp) {
let href;
if (typeof hrefProp === 'string') {
href = hrefProp;
} else if (typeof hrefProp === 'object' && typeof hrefProp.pathname === 'string') {
href = hrefProp.pathname;
}
if (href) {
const hasDynamicSegment = href.split('/').some((segment)=>segment.startsWith('[') && segment.endsWith(']'));
if (hasDynamicSegment) {
throw Object.defineProperty(new Error(`Dynamic href \`${href}\` found in <Link> while using the \`/app\` router, this is not supported. Read more: https://nextjs.org/docs/messages/app-dir-dynamic-href`), "__NEXT_ERROR_CODE", {
value: "E267",
enumerable: false,
configurable: true
});
}
}
}
}
const { href, as } = React.useMemo(()=>{
const resolvedHref = formatStringOrUrl(hrefProp);
return {
href: resolvedHref,
as: asProp ? formatStringOrUrl(asProp) : resolvedHref
};
}, [
hrefProp,
asProp
]);
// This will return the first child, if multiple are provided it will throw an error
let child;
if (legacyBehavior) {
if (children?.$$typeof === Symbol.for('react.lazy')) {
throw Object.defineProperty(new Error(`\`<Link legacyBehavior>\` received a direct child that is either a Server Component, or JSX that was loaded with React.lazy(). This is not supported. Either remove legacyBehavior, or make the direct child a Client Component that renders the Link's \`<a>\` tag.`), "__NEXT_ERROR_CODE", {
value: "E863",
enumerable: false,
configurable: true
});
}
if (process.env.NODE_ENV === 'development') {
if (onClick) {
console.warn(`"onClick" was passed to <Link> with \`href\` of \`${hrefProp}\` but "legacyBehavior" was set. The legacy behavior requires onClick be set on the child of next/link`);
}
if (onMouseEnterProp) {
console.warn(`"onMouseEnter" was passed to <Link> with \`href\` of \`${hrefProp}\` but "legacyBehavior" was set. The legacy behavior requires onMouseEnter be set on the child of next/link`);
}
try {
child = React.Children.only(children);
} catch (err) {
if (!children) {
throw Object.defineProperty(new Error(`No children were passed to <Link> with \`href\` of \`${hrefProp}\` but one child is required https://nextjs.org/docs/messages/link-no-children`), "__NEXT_ERROR_CODE", {
value: "E320",
enumerable: false,
configurable: true
});
}
throw Object.defineProperty(new Error(`Multiple children were passed to <Link> with \`href\` of \`${hrefProp}\` but only one child is supported https://nextjs.org/docs/messages/link-multiple-children` + (typeof window !== 'undefined' ? " \nOpen your browser's console to view the Component stack trace." : '')), "__NEXT_ERROR_CODE", {
value: "E266",
enumerable: false,
configurable: true
});
}
} else {
child = React.Children.only(children);
}
} else {
if (process.env.NODE_ENV === 'development') {
if (children?.type === 'a') {
throw Object.defineProperty(new Error('Invalid <Link> with <a> child. Please remove <a> or use <Link legacyBehavior>.\nLearn more: https://nextjs.org/docs/messages/invalid-new-link-with-extra-anchor'), "__NEXT_ERROR_CODE", {
value: "E209",
enumerable: false,
configurable: true
});
}
}
}
const childRef = legacyBehavior ? child && typeof child === 'object' && child.ref : forwardedRef;
// Use a callback ref to attach an IntersectionObserver to the anchor tag on
// mount. In the future we will also use this to keep track of all the
// currently mounted <Link> instances, e.g. so we can re-prefetch them after
// a revalidation or refresh.
const observeLinkVisibilityOnMount = React.useCallback((element)=>{
if (router !== null) {
linkInstanceRef.current = mountLinkInstance(element, href, router, fetchStrategy, prefetchEnabled, setOptimisticLinkStatus);
}
return ()=>{
if (linkInstanceRef.current) {
unmountLinkForCurrentNavigation(linkInstanceRef.current);
linkInstanceRef.current = null;
}
unmountPrefetchableInstance(element);
};
}, [
prefetchEnabled,
href,
router,
fetchStrategy,
setOptimisticLinkStatus
]);
const mergedRef = useMergedRef(observeLinkVisibilityOnMount, childRef);
const childProps = {
ref: mergedRef,
onClick (e) {
if (process.env.NODE_ENV !== 'production') {
if (!e) {
throw Object.defineProperty(new Error(`Component rendered inside next/link has to pass click event to "onClick" prop.`), "__NEXT_ERROR_CODE", {
value: "E312",
enumerable: false,
configurable: true
});
}
}
if (!legacyBehavior && typeof onClick === 'function') {
onClick(e);
}
if (legacyBehavior && child.props && typeof child.props.onClick === 'function') {
child.props.onClick(e);
}
if (!router) {
return;
}
if (e.defaultPrevented) {
return;
}
linkClicked(e, href, as, linkInstanceRef, replace, scroll, onNavigate);
},
onMouseEnter (e) {
if (!legacyBehavior && typeof onMouseEnterProp === 'function') {
onMouseEnterProp(e);
}
if (legacyBehavior && child.props && typeof child.props.onMouseEnter === 'function') {
child.props.onMouseEnter(e);
}
if (!router) {
return;
}
if (!prefetchEnabled || process.env.NODE_ENV === 'development') {
return;
}
const upgradeToDynamicPrefetch = unstable_dynamicOnHover === true;
onNavigationIntent(e.currentTarget, upgradeToDynamicPrefetch);
},
onTouchStart: process.env.__NEXT_LINK_NO_TOUCH_START ? undefined : function onTouchStart(e) {
if (!legacyBehavior && typeof onTouchStartProp === 'function') {
onTouchStartProp(e);
}
if (legacyBehavior && child.props && typeof child.props.onTouchStart === 'function') {
child.props.onTouchStart(e);
}
if (!router) {
return;
}
if (!prefetchEnabled) {
return;
}
const upgradeToDynamicPrefetch = unstable_dynamicOnHover === true;
onNavigationIntent(e.currentTarget, upgradeToDynamicPrefetch);
}
};
// If the url is absolute, we can bypass the logic to prepend the basePath.
if (isAbsoluteUrl(as)) {
childProps.href = as;
} else if (!legacyBehavior || passHref || child.type === 'a' && !('href' in child.props)) {
childProps.href = addBasePath(as);
}
let link;
if (legacyBehavior) {
if (process.env.NODE_ENV === 'development') {
errorOnce('`legacyBehavior` is deprecated and will be removed in a future ' + 'release. A codemod is available to upgrade your components:\n\n' + 'npx @next/codemod@latest new-link .\n\n' + 'Learn more: https://nextjs.org/docs/app/building-your-application/upgrading/codemods#remove-a-tags-from-link-components');
}
link = /*#__PURE__*/ React.cloneElement(child, childProps);
} else {
link = /*#__PURE__*/ _jsx("a", {
...restProps,
...childProps,
children: children
});
}
return /*#__PURE__*/ _jsx(LinkStatusContext.Provider, {
value: linkStatus,
children: link
});
}
const LinkStatusContext = /*#__PURE__*/ createContext(IDLE_LINK_STATUS);
export const useLinkStatus = ()=>{
return useContext(LinkStatusContext);
};
function getFetchStrategyFromPrefetchProp(prefetchProp) {
if (process.env.__NEXT_CACHE_COMPONENTS) {
if (prefetchProp === true) {
return FetchStrategy.Full;
}
// `null` or `"auto"`: this is the default "auto" mode, where we will prefetch partially if the link is in the viewport.
// This will also include invalid prop values that don't match the types specified here.
// (although those should've been filtered out by prop validation in dev)
prefetchProp;
return FetchStrategy.PPR;
} else {
return prefetchProp === null || prefetchProp === 'auto' ? FetchStrategy.PPR : // To preserve backwards-compatibility, anything other than `false`, `null`, or `"auto"` results in a full prefetch.
// (although invalid values should've been filtered out by prop validation in dev)
FetchStrategy.Full;
}
}
//# sourceMappingURL=link.js.map