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