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index.tsx
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import * as React from "react";
import type { BrowserHistory, HashHistory, History } from "history";
import { createBrowserHistory, createHashHistory, createPath } from "history";
import {
MemoryRouter,
Navigate,
Outlet,
Route,
Router,
Routes,
createRoutesFromChildren,
generatePath,
matchRoutes,
matchPath,
resolvePath,
renderMatches,
useHref,
useInRouterContext,
useLocation,
useMatch,
useNavigate,
useNavigationType,
useOutlet,
useParams,
useResolvedPath,
useRoutes,
useOutletContext,
} from "react-router";
import type { To } from "react-router";
function warning(cond: boolean, message: string): void {
if (!cond) {
// eslint-disable-next-line no-console
if (typeof console !== "undefined") console.warn(message);
try {
// Welcome to debugging React Router!
//
// This error is thrown as a convenience so you can more easily
// find the source for a warning that appears in the console by
// enabling "pause on exceptions" in your JavaScript debugger.
throw new Error(message);
// eslint-disable-next-line no-empty
} catch (e) {}
}
}
////////////////////////////////////////////////////////////////////////////////
// RE-EXPORTS
////////////////////////////////////////////////////////////////////////////////
// Note: Keep in sync with react-router exports!
export {
MemoryRouter,
Navigate,
Outlet,
Route,
Router,
Routes,
createRoutesFromChildren,
generatePath,
matchRoutes,
matchPath,
renderMatches,
resolvePath,
useHref,
useInRouterContext,
useLocation,
useMatch,
useNavigate,
useNavigationType,
useOutlet,
useParams,
useResolvedPath,
useRoutes,
useOutletContext,
};
export type {
Location,
Path,
To,
NavigationType,
MemoryRouterProps,
NavigateFunction,
NavigateOptions,
NavigateProps,
Navigator,
OutletProps,
Params,
PathMatch,
RouteMatch,
RouteObject,
RouteProps,
PathRouteProps,
LayoutRouteProps,
IndexRouteProps,
RouterProps,
RoutesProps,
} from "react-router";
///////////////////////////////////////////////////////////////////////////////
// DANGER! PLEASE READ ME!
// We provide these exports as an escape hatch in the event that you need any
// routing data that we don't provide an explicit API for. With that said, we
// want to cover your use case if we can, so if you feel the need to use these
// we want to hear from you. Let us know what you're building and we'll do our
// best to make sure we can support you!
//
// We consider these exports an implementation detail and do not guarantee
// against any breaking changes, regardless of the semver release. Use with
// extreme caution and only if you understand the consequences. Godspeed.
///////////////////////////////////////////////////////////////////////////////
/** @internal */
export {
UNSAFE_NavigationContext,
UNSAFE_LocationContext,
UNSAFE_RouteContext,
} from "react-router";
////////////////////////////////////////////////////////////////////////////////
// COMPONENTS
////////////////////////////////////////////////////////////////////////////////
export interface BrowserRouterProps {
basename?: string;
children?: React.ReactNode;
window?: Window;
}
/**
* A `<Router>` for use in web browsers. Provides the cleanest URLs.
*/
export function BrowserRouter({
basename,
children,
window,
}: BrowserRouterProps) {
let historyRef = React.useRef<BrowserHistory>();
if (historyRef.current == null) {
historyRef.current = createBrowserHistory({ window });
}
let history = historyRef.current;
let [state, setState] = React.useState({
action: history.action,
location: history.location,
});
React.useLayoutEffect(() => history.listen(setState), [history]);
return (
<Router
basename={basename}
children={children}
location={state.location}
navigationType={state.action}
navigator={history}
/>
);
}
export interface HashRouterProps {
basename?: string;
children?: React.ReactNode;
window?: Window;
}
/**
* A `<Router>` for use in web browsers. Stores the location in the hash
* portion of the URL so it is not sent to the server.
*/
export function HashRouter({ basename, children, window }: HashRouterProps) {
let historyRef = React.useRef<HashHistory>();
if (historyRef.current == null) {
historyRef.current = createHashHistory({ window });
}
let history = historyRef.current;
let [state, setState] = React.useState({
action: history.action,
location: history.location,
});
React.useLayoutEffect(() => history.listen(setState), [history]);
return (
<Router
basename={basename}
children={children}
location={state.location}
navigationType={state.action}
navigator={history}
/>
);
}
export interface HistoryRouterProps {
basename?: string;
children?: React.ReactNode;
history: History;
}
/**
* A `<Router>` that accepts a pre-instantiated history object. It's important
* to note that using your own history object is highly discouraged and may add
* two versions of the history library to your bundles unless you use the same
* version of the history library that React Router uses internally.
*/
function HistoryRouter({ basename, children, history }: HistoryRouterProps) {
const [state, setState] = React.useState({
action: history.action,
location: history.location,
});
React.useLayoutEffect(() => history.listen(setState), [history]);
return (
<Router
basename={basename}
children={children}
location={state.location}
navigationType={state.action}
navigator={history}
/>
);
}
if (__DEV__) {
HistoryRouter.displayName = "unstable_HistoryRouter";
}
export { HistoryRouter as unstable_HistoryRouter };
function isModifiedEvent(event: React.MouseEvent) {
return !!(event.metaKey || event.altKey || event.ctrlKey || event.shiftKey);
}
export interface LinkProps
extends Omit<React.AnchorHTMLAttributes<HTMLAnchorElement>, "href"> {
reloadDocument?: boolean;
replace?: boolean;
state?: any;
to: To;
}
/**
* The public API for rendering a history-aware <a>.
*/
export const Link = React.forwardRef<HTMLAnchorElement, LinkProps>(
function LinkWithRef(
{ onClick, reloadDocument, replace = false, state, target, to, ...rest },
ref
) {
let href = useHref(to);
let internalOnClick = useLinkClickHandler(to, { replace, state, target });
function handleClick(
event: React.MouseEvent<HTMLAnchorElement, MouseEvent>
) {
if (onClick) onClick(event);
if (!event.defaultPrevented && !reloadDocument) {
internalOnClick(event);
}
}
return (
// eslint-disable-next-line jsx-a11y/anchor-has-content
<a
{...rest}
href={href}
onClick={handleClick}
ref={ref}
target={target}
/>
);
}
);
if (__DEV__) {
Link.displayName = "Link";
}
export interface NavLinkProps
extends Omit<LinkProps, "className" | "style" | "children"> {
children:
| React.ReactNode
| ((props: { isActive: boolean }) => React.ReactNode);
caseSensitive?: boolean;
className?: string | ((props: { isActive: boolean }) => string | undefined);
end?: boolean;
style?:
| React.CSSProperties
| ((props: { isActive: boolean }) => React.CSSProperties);
}
/**
* A <Link> wrapper that knows if it's "active" or not.
*/
export const NavLink = React.forwardRef<HTMLAnchorElement, NavLinkProps>(
function NavLinkWithRef(
{
"aria-current": ariaCurrentProp = "page",
caseSensitive = false,
className: classNameProp = "",
end = false,
style: styleProp,
to,
children,
...rest
},
ref
) {
let location = useLocation();
let path = useResolvedPath(to);
let locationPathname = location.pathname;
let toPathname = path.pathname;
if (!caseSensitive) {
locationPathname = locationPathname.toLowerCase();
toPathname = toPathname.toLowerCase();
}
let isActive =
locationPathname === toPathname ||
(!end &&
locationPathname.startsWith(toPathname) &&
locationPathname.charAt(toPathname.length) === "/");
let ariaCurrent = isActive ? ariaCurrentProp : undefined;
let className: string | undefined;
if (typeof classNameProp === "function") {
className = classNameProp({ isActive });
} else {
// If the className prop is not a function, we use a default `active`
// class for <NavLink />s that are active. In v5 `active` was the default
// value for `activeClassName`, but we are removing that API and can still
// use the old default behavior for a cleaner upgrade path and keep the
// simple styling rules working as they currently do.
className = [classNameProp, isActive ? "active" : null]
.filter(Boolean)
.join(" ");
}
let style =
typeof styleProp === "function" ? styleProp({ isActive }) : styleProp;
return (
<Link
{...rest}
aria-current={ariaCurrent}
className={className}
ref={ref}
style={style}
to={to}
>
{typeof children === "function" ? children({ isActive }) : children}
</Link>
);
}
);
if (__DEV__) {
NavLink.displayName = "NavLink";
}
////////////////////////////////////////////////////////////////////////////////
// HOOKS
////////////////////////////////////////////////////////////////////////////////
/**
* Handles the click behavior for router `<Link>` components. This is useful if
* you need to create custom `<Link>` components with the same click behavior we
* use in our exported `<Link>`.
*/
export function useLinkClickHandler<E extends Element = HTMLAnchorElement>(
to: To,
{
target,
replace: replaceProp,
state,
}: {
target?: React.HTMLAttributeAnchorTarget;
replace?: boolean;
state?: any;
} = {}
): (event: React.MouseEvent<E, MouseEvent>) => void {
let navigate = useNavigate();
let location = useLocation();
let path = useResolvedPath(to);
return React.useCallback(
(event: React.MouseEvent<E, MouseEvent>) => {
if (
event.button === 0 && // Ignore everything but left clicks
(!target || target === "_self") && // Let browser handle "target=_blank" etc.
!isModifiedEvent(event) // Ignore clicks with modifier keys
) {
event.preventDefault();
// If the URL hasn't changed, a regular <a> will do a replace instead of
// a push, so do the same here.
let replace =
!!replaceProp || createPath(location) === createPath(path);
navigate(to, { replace, state });
}
},
[location, navigate, path, replaceProp, state, target, to]
);
}
/**
* A convenient wrapper for reading and writing search parameters via the
* URLSearchParams interface.
*/
export function useSearchParams(defaultInit?: URLSearchParamsInit) {
warning(
typeof URLSearchParams !== "undefined",
`You cannot use the \`useSearchParams\` hook in a browser that does not ` +
`support the URLSearchParams API. If you need to support Internet ` +
`Explorer 11, we recommend you load a polyfill such as ` +
`https://github.com/ungap/url-search-params\n\n` +
`If you're unsure how to load polyfills, we recommend you check out ` +
`https://polyfill.io/v3/ which provides some recommendations about how ` +
`to load polyfills only for users that need them, instead of for every ` +
`user.`
);
let defaultSearchParamsRef = React.useRef(createSearchParams(defaultInit));
let location = useLocation();
let searchParams = React.useMemo(() => {
let searchParams = createSearchParams(location.search);
for (let key of defaultSearchParamsRef.current.keys()) {
if (!searchParams.has(key)) {
defaultSearchParamsRef.current.getAll(key).forEach((value) => {
searchParams.append(key, value);
});
}
}
return searchParams;
}, [location.search]);
let navigate = useNavigate();
let setSearchParams = React.useCallback(
(
nextInit: URLSearchParamsInit,
navigateOptions?: { replace?: boolean; state?: any }
) => {
navigate("?" + createSearchParams(nextInit), navigateOptions);
},
[navigate]
);
return [searchParams, setSearchParams] as const;
}
export type ParamKeyValuePair = [string, string];
export type URLSearchParamsInit =
| string
| ParamKeyValuePair[]
| Record<string, string | string[]>
| URLSearchParams;
/**
* Creates a URLSearchParams object using the given initializer.
*
* This is identical to `new URLSearchParams(init)` except it also
* supports arrays as values in the object form of the initializer
* instead of just strings. This is convenient when you need multiple
* values for a given key, but don't want to use an array initializer.
*
* For example, instead of:
*
* let searchParams = new URLSearchParams([
* ['sort', 'name'],
* ['sort', 'price']
* ]);
*
* you can do:
*
* let searchParams = createSearchParams({
* sort: ['name', 'price']
* });
*/
export function createSearchParams(
init: URLSearchParamsInit = ""
): URLSearchParams {
return new URLSearchParams(
typeof init === "string" ||
Array.isArray(init) ||
init instanceof URLSearchParams
? init
: Object.keys(init).reduce((memo, key) => {
let value = init[key];
return memo.concat(
Array.isArray(value) ? value.map((v) => [key, v]) : [[key, value]]
);
}, [] as ParamKeyValuePair[])
);
}