ec4f96c974
Make the render procedure of `App` and `Component` more explict and clear
128 lines
3.2 KiB
TypeScript
128 lines
3.2 KiB
TypeScript
import React from 'react'
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import Head from '../shared/lib/head'
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import { NextPageContext } from '../shared/lib/utils'
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const statusCodes: { [code: number]: string } = {
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400: 'Bad Request',
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404: 'This page could not be found',
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405: 'Method Not Allowed',
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500: 'Internal Server Error',
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}
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export type ErrorProps = {
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statusCode: number
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title?: string
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}
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function _getInitialProps({
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res,
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err,
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}: NextPageContext): Promise<ErrorProps> | ErrorProps {
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const statusCode =
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res && res.statusCode ? res.statusCode : err ? err.statusCode! : 404
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return { statusCode }
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}
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/**
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* `Error` component used for handling errors.
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*/
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export default class Error<P = {}> extends React.Component<P & ErrorProps> {
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static displayName = 'ErrorPage'
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static getInitialProps = _getInitialProps
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static origGetInitialProps = _getInitialProps
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render() {
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const { statusCode } = this.props
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const title =
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this.props.title ||
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statusCodes[statusCode] ||
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'An unexpected error has occurred'
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return (
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<div style={styles.error}>
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<Head>
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<title>
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{statusCode
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? `${statusCode}: ${title}`
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: 'Application error: a client-side exception has occurred'}
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</title>
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</Head>
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<div>
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<style
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dangerouslySetInnerHTML={{
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__html: `
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body { margin: 0; color: #000; background: #fff; }
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.next-error-h1 {
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border-right: 1px solid rgba(0, 0, 0, .3);
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}
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@media (prefers-color-scheme: dark) {
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body { color: #fff; background: #000; }
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.next-error-h1 {
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border-right: 1px solid rgba(255, 255, 255, .3);
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}
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}`,
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}}
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/>
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{statusCode ? (
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<h1 className="next-error-h1" style={styles.h1}>
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{statusCode}
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</h1>
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) : null}
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<div style={styles.desc}>
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<h2 style={styles.h2}>
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{this.props.title || statusCode ? (
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title
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) : (
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<>
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Application error: a client-side exception has occurred (see
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the browser console for more information)
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</>
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)}
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.
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</h2>
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</div>
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</div>
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</div>
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)
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}
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}
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const styles: { [k: string]: React.CSSProperties } = {
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error: {
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fontFamily:
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'-apple-system, BlinkMacSystemFont, Roboto, "Segoe UI", "Fira Sans", Avenir, "Helvetica Neue", "Lucida Grande", sans-serif',
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height: '100vh',
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textAlign: 'center',
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display: 'flex',
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flexDirection: 'column',
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alignItems: 'center',
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justifyContent: 'center',
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},
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desc: {
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display: 'inline-block',
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textAlign: 'left',
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lineHeight: '49px',
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height: '49px',
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verticalAlign: 'middle',
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},
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h1: {
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display: 'inline-block',
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margin: 0,
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marginRight: '20px',
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padding: '10px 23px 10px 0',
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fontSize: '24px',
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fontWeight: 500,
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verticalAlign: 'top',
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},
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h2: {
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fontSize: '14px',
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fontWeight: 'normal',
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lineHeight: 'inherit',
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margin: 0,
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padding: 0,
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},
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}
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