135 lines
3.5 KiB
JavaScript
135 lines
3.5 KiB
JavaScript
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import React from "react";
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import { __RouterContext as RouterContext, matchPath } from "react-router";
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import PropTypes from "prop-types";
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import invariant from "tiny-invariant";
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import Link from "./Link.js";
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import {
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resolveToLocation,
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normalizeToLocation
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} from "./utils/locationUtils.js";
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// React 15 compat
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const forwardRefShim = C => C;
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let { forwardRef } = React;
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if (typeof forwardRef === "undefined") {
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forwardRef = forwardRefShim;
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}
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function joinClassnames(...classnames) {
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return classnames.filter(i => i).join(" ");
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}
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/**
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* A <Link> wrapper that knows if it's "active" or not.
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*/
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const NavLink = forwardRef(
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(
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{
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"aria-current": ariaCurrent = "page",
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activeClassName = "active", // TODO: deprecate
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activeStyle, // TODO: deprecate
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className: classNameProp,
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exact,
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isActive: isActiveProp,
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location: locationProp,
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sensitive,
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strict,
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style: styleProp,
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to,
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innerRef, // TODO: deprecate
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...rest
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},
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forwardedRef
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) => {
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return (
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<RouterContext.Consumer>
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{context => {
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invariant(context, "You should not use <NavLink> outside a <Router>");
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const currentLocation = locationProp || context.location;
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const toLocation = normalizeToLocation(
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resolveToLocation(to, currentLocation),
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currentLocation
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);
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const { pathname: path } = toLocation;
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// Regex taken from: https://github.com/pillarjs/path-to-regexp/blob/master/index.js#L202
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const escapedPath =
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path && path.replace(/([.+*?=^!:${}()[\]|/\\])/g, "\\$1");
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const match = escapedPath
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? matchPath(currentLocation.pathname, {
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path: escapedPath,
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exact,
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sensitive,
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strict
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})
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: null;
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const isActive = !!(isActiveProp
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? isActiveProp(match, currentLocation)
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: match);
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let className =
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typeof classNameProp === "function"
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? classNameProp(isActive)
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: classNameProp;
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let style =
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typeof styleProp === "function" ? styleProp(isActive) : styleProp;
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if (isActive) {
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className = joinClassnames(className, activeClassName);
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style = { ...style, ...activeStyle };
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}
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const props = {
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"aria-current": (isActive && ariaCurrent) || null,
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className,
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style,
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to: toLocation,
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...rest
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};
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// React 15 compat
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if (forwardRefShim !== forwardRef) {
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props.ref = forwardedRef || innerRef;
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} else {
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props.innerRef = innerRef;
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}
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return <Link {...props} />;
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}}
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</RouterContext.Consumer>
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);
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}
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);
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if (__DEV__) {
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NavLink.displayName = "NavLink";
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const ariaCurrentType = PropTypes.oneOf([
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"page",
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"step",
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"location",
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"date",
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"time",
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"true",
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"false"
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]);
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NavLink.propTypes = {
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...Link.propTypes,
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"aria-current": ariaCurrentType,
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activeClassName: PropTypes.string,
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activeStyle: PropTypes.object,
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className: PropTypes.oneOfType([PropTypes.string, PropTypes.func]),
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exact: PropTypes.bool,
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isActive: PropTypes.func,
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location: PropTypes.object,
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sensitive: PropTypes.bool,
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strict: PropTypes.bool,
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style: PropTypes.oneOfType([PropTypes.object, PropTypes.func])
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};
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}
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export default NavLink;
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