unpkg/client/Layout.js

133 lines
3.4 KiB
JavaScript

import React from "react";
import PropTypes from "prop-types";
import { Motion, spring } from "react-motion";
import { Switch, Route, Link, withRouter } from "react-router-dom";
import WindowSize from "./WindowSize";
import About from "./About";
import Stats from "./Stats";
import Home from "./Home";
class Layout extends React.Component {
static propTypes = {
location: PropTypes.object,
children: PropTypes.node
};
state = {
underlineLeft: 0,
underlineWidth: 0,
useSpring: false,
stats: null
};
adjustUnderline = (useSpring = false) => {
let itemIndex;
switch (this.props.location.pathname) {
case "/stats":
itemIndex = 1;
break;
case "/about":
itemIndex = 2;
break;
case "/":
default:
itemIndex = 0;
}
const itemNodes = this.listNode.querySelectorAll("li");
const currentNode = itemNodes[itemIndex];
this.setState({
underlineLeft: currentNode.offsetLeft,
underlineWidth: currentNode.offsetWidth,
useSpring
});
};
componentDidMount() {
this.adjustUnderline();
fetch("/_stats?period=last-month")
.then(res => res.json())
.then(stats => this.setState({ stats }));
if (window.localStorage) {
const savedStats = window.localStorage.savedStats;
if (savedStats) this.setState({ stats: JSON.parse(savedStats) });
window.onbeforeunload = () => {
localStorage.savedStats = JSON.stringify(this.state.stats);
};
}
}
componentDidUpdate(prevProps) {
if (prevProps.location.pathname !== this.props.location.pathname)
this.adjustUnderline(true);
}
render() {
const { underlineLeft, underlineWidth, useSpring } = this.state;
const style = {
left: useSpring
? spring(underlineLeft, { stiffness: 220 })
: underlineLeft,
width: useSpring ? spring(underlineWidth) : underlineWidth
};
return (
<div>
<WindowSize onChange={this.adjustUnderline} />
<div className="wrapper">
<header>
<h1 className="layout-title">unpkg</h1>
<nav className="layout-nav">
<ol
className="layout-nav-list"
ref={node => (this.listNode = node)}
>
<li>
<Link to="/">Home</Link>
</li>
<li>
<Link to="/stats">Stats</Link>
</li>
<li>
<Link to="/about">About</Link>
</li>
</ol>
<Motion
defaultStyle={{ left: underlineLeft, width: underlineWidth }}
style={style}
children={style => (
<div
className="layout-nav-underline"
style={{
WebkitTransform: `translate3d(${style.left}px,0,0)`,
transform: `translate3d(${style.left}px,0,0)`,
width: style.width
}}
/>
)}
/>
</nav>
</header>
</div>
<Switch>
<Route
path="/stats"
render={() => <Stats data={this.state.stats} />}
/>
<Route path="/about" component={About} />
<Route path="/" component={Home} />
</Switch>
</div>
);
}
}
export default withRouter(Layout);