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next.js/test/integration/basic/pages/nav/shallow-routing.js

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import { Component } from 'react'
import Link from 'next/link'
import Router from 'next/router'
let getInitialPropsRunCount = 1
const linkStyle = {
marginRight: 10
}
export default class extends Component {
static getInitialProps ({ res }) {
if (res) return { getInitialPropsRunCount: 1 }
getInitialPropsRunCount++
return { getInitialPropsRunCount }
}
getCurrentCounter () {
const { url } = this.props
return url.query.counter ? parseInt(url.query.counter) : 0
}
increase () {
const counter = this.getCurrentCounter()
const href = `/nav/shallow-routing?counter=${counter + 1}`
Router.push(href, href, { shallow: true })
}
render () {
return (
<div className='shallow-routing'>
<Link href='/nav'><a id='home-link' style={linkStyle}>Home</a></Link>
<div id='counter'>
Counter: {this.getCurrentCounter()}
</div>
<div id='get-initial-props-run-count'>
getInitialProps run count: {this.props.getInitialPropsRunCount}
</div>
<button id='increase' onClick={() => this.increase()}>Increase</button>
</div>
)
}
}