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| Current File : //proc/self/root/home/livedhms/lmgt/node_modules/next/dist/esm/client/link.js |
'use client';
import { jsx as _jsx } from "react/jsx-runtime";
import React, { createContext, useContext } from 'react';
import { resolveHref } from './resolve-href';
import { isLocalURL } from '../shared/lib/router/utils/is-local-url';
import { formatUrl } from '../shared/lib/router/utils/format-url';
import { isAbsoluteUrl } from '../shared/lib/utils';
import { addLocale } from './add-locale';
import { RouterContext } from '../shared/lib/router-context.shared-runtime';
import { useIntersection } from './use-intersection';
import { getDomainLocale } from './get-domain-locale';
import { addBasePath } from './add-base-path';
import { useMergedRef } from './use-merged-ref';
import { errorOnce } from '../shared/lib/utils/error-once';
const prefetched = new Set();
function prefetch(router, href, as, options) {
if (typeof window === 'undefined') {
return;
}
if (!isLocalURL(href)) {
return;
}
// We should only dedupe requests when experimental.optimisticClientCache is
// disabled.
if (!options.bypassPrefetchedCheck) {
const locale = // Let the link's locale prop override the default router locale.
typeof options.locale !== 'undefined' ? options.locale : 'locale' in router ? router.locale : undefined;
const prefetchedKey = href + '%' + as + '%' + locale;
// If we've already fetched the key, then don't prefetch it again!
if (prefetched.has(prefetchedKey)) {
return;
}
// Mark this URL as prefetched.
prefetched.add(prefetchedKey);
}
// Prefetch the JSON page if asked (only in the client)
// We need to handle a prefetch error here since we may be
// loading with priority which can reject but we don't
// want to force navigation since this is only a prefetch
router.prefetch(href, as, options).catch((err)=>{
if (process.env.NODE_ENV !== 'production') {
// rethrow to show invalid URL errors
throw err;
}
});
}
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, router, href, as, replace, shallow, scroll, locale, onNavigate) {
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();
const navigate = ()=>{
if (onNavigate) {
let isDefaultPrevented = false;
onNavigate({
preventDefault: ()=>{
isDefaultPrevented = true;
}
});
if (isDefaultPrevented) {
return;
}
}
// If the router is an NextRouter instance it will have `beforePopState`
const routerScroll = scroll ?? true;
if ('beforePopState' in router) {
router[replace ? 'replace' : 'push'](href, as, {
shallow,
locale,
scroll: routerScroll
});
} else {
router[replace ? 'replace' : 'push'](as || href, {
scroll: routerScroll
});
}
};
navigate();
}
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 between routes.
*
* It is the primary way to navigate between routes in Next.js.
*
* Read more: [Next.js docs: `<Link>`](https://nextjs.org/docs/app/api-reference/components/link)
*/ const Link = /*#__PURE__*/ React.forwardRef(function LinkComponent(props, forwardedRef) {
let children;
const { href: hrefProp, as: asProp, children: childrenProp, prefetch: prefetchProp = null, passHref, replace, shallow, scroll, locale, onClick, onNavigate, onMouseEnter: onMouseEnterProp, onTouchStart: onTouchStartProp, legacyBehavior = false, ...restProps } = props;
children = childrenProp;
if (legacyBehavior && (typeof children === 'string' || typeof children === 'number')) {
children = /*#__PURE__*/ _jsx("a", {
children: children
});
}
const router = React.useContext(RouterContext);
const prefetchEnabled = prefetchProp !== false;
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,
locale: 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 === 'locale') {
if (props[key] && valType !== 'string') {
throw createPropError({
key,
expected: '`string`',
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') {
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;
}
});
}
const { href, as } = React.useMemo(()=>{
if (!router) {
const resolvedHref = formatStringOrUrl(hrefProp);
return {
href: resolvedHref,
as: asProp ? formatStringOrUrl(asProp) : resolvedHref
};
}
const [resolvedHref, resolvedAs] = resolveHref(router, hrefProp, true);
return {
href: resolvedHref,
as: asProp ? resolveHref(router, asProp) : resolvedAs || resolvedHref
};
}, [
router,
hrefProp,
asProp
]);
const previousHref = React.useRef(href);
const previousAs = React.useRef(as);
// This will return the first child, if multiple are provided it will throw an error
let child;
if (legacyBehavior) {
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;
const [setIntersectionRef, isVisible, resetVisible] = useIntersection({
rootMargin: '200px'
});
const setIntersectionWithResetRef = React.useCallback((el)=>{
// Before the link getting observed, check if visible state need to be reset
if (previousAs.current !== as || previousHref.current !== href) {
resetVisible();
previousAs.current = as;
previousHref.current = href;
}
setIntersectionRef(el);
}, [
as,
href,
resetVisible,
setIntersectionRef
]);
const setRef = useMergedRef(setIntersectionWithResetRef, childRef);
// Prefetch the URL if we haven't already and it's visible.
React.useEffect(()=>{
// in dev, we only prefetch on hover to avoid wasting resources as the prefetch will trigger compiling the page.
if (process.env.NODE_ENV !== 'production') {
return;
}
if (!router) {
return;
}
// If we don't need to prefetch the URL, don't do prefetch.
if (!isVisible || !prefetchEnabled) {
return;
}
// Prefetch the URL.
prefetch(router, href, as, {
locale
});
}, [
as,
href,
isVisible,
locale,
prefetchEnabled,
router?.locale,
router
]);
const childProps = {
ref: setRef,
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, router, href, as, replace, shallow, scroll, locale, 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;
}
prefetch(router, href, as, {
locale,
priority: true,
// @see {https://github.com/vercel/next.js/discussions/40268?sort=top#discussioncomment-3572642}
bypassPrefetchedCheck: true
});
},
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;
}
prefetch(router, href, as, {
locale,
priority: true,
// @see {https://github.com/vercel/next.js/discussions/40268?sort=top#discussioncomment-3572642}
bypassPrefetchedCheck: true
});
}
};
// If the url is absolute, we can bypass the logic to prepend the domain and locale.
if (isAbsoluteUrl(as)) {
childProps.href = as;
} else if (!legacyBehavior || passHref || child.type === 'a' && !('href' in child.props)) {
const curLocale = typeof locale !== 'undefined' ? locale : router?.locale;
// we only render domain locales if we are currently on a domain locale
// so that locale links are still visitable in development/preview envs
const localeDomain = router?.isLocaleDomain && getDomainLocale(as, curLocale, router?.locales, router?.domainLocales);
childProps.href = localeDomain || addBasePath(addLocale(as, curLocale, router?.defaultLocale));
}
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');
}
return /*#__PURE__*/ React.cloneElement(child, childProps);
}
return /*#__PURE__*/ _jsx("a", {
...restProps,
...childProps,
children: children
});
});
const LinkStatusContext = /*#__PURE__*/ createContext({
// We do not support link status in the Pages Router, so we always return false
pending: false
});
export const useLinkStatus = ()=>{
// This behaviour is like React's useFormStatus. When the component is not under
// a <form> tag, it will get the default value, instead of throwing an error.
return useContext(LinkStatusContext);
};
export default Link;
//# sourceMappingURL=link.js.map