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78 lines
2.2 KiB
JavaScript
78 lines
2.2 KiB
JavaScript
// eslint-disable-next-line @next/next/no-document-import-in-page
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import BLOG from '@/blog.config'
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import Document, { Head, Html, Main, NextScript } from 'next/document'
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// 预先设置深色模式的脚本内容
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const darkModeScript = `
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(function() {
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const darkMode = localStorage.getItem('darkMode')
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const prefersDark =
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window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches
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const defaultAppearance = '${BLOG.APPEARANCE || 'auto'}'
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let shouldBeDark = darkMode === 'true' || darkMode === 'dark'
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if (darkMode === null) {
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if (defaultAppearance === 'dark') {
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shouldBeDark = true
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} else if (defaultAppearance === 'auto') {
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// 检查是否在深色模式时间范围内
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const date = new Date()
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const hours = date.getHours()
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const darkTimeStart = ${BLOG.APPEARANCE_DARK_TIME ? BLOG.APPEARANCE_DARK_TIME[0] : 18}
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const darkTimeEnd = ${BLOG.APPEARANCE_DARK_TIME ? BLOG.APPEARANCE_DARK_TIME[1] : 6}
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shouldBeDark = prefersDark || (hours >= darkTimeStart || hours < darkTimeEnd)
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}
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}
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// 立即设置 html 元素的类
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document.documentElement.classList.add(shouldBeDark ? 'dark' : 'light')
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})()
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`
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class MyDocument extends Document {
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static async getInitialProps(ctx) {
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const initialProps = await Document.getInitialProps(ctx)
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return { ...initialProps }
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}
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render() {
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return (
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<Html lang={BLOG.LANG}>
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<Head>
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{/* 预加载字体 */}
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{BLOG.FONT_AWESOME && (
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<>
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<link
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rel='preload'
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href={BLOG.FONT_AWESOME}
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as='style'
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crossOrigin='anonymous'
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/>
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<link
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rel='stylesheet'
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href={BLOG.FONT_AWESOME}
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crossOrigin='anonymous'
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referrerPolicy='no-referrer'
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/>
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</>
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)}
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{/* 预先设置深色模式，避免闪烁 */}
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<script dangerouslySetInnerHTML={{ __html: darkModeScript }} />
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</Head>
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<body>
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<Main />
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<NextScript />
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</body>
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</Html>
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)
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}
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}
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export default MyDocument
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