65 lines
1.4 KiB
TypeScript
65 lines
1.4 KiB
TypeScript
import type { Highlighter, Lang } from 'shiki-es'
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const shiki = ref<Highlighter>()
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const registeredLang = ref(new Map<string, boolean>())
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let shikiImport: Promise<void> | undefined
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export function useHightlighter(lang: Lang) {
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if (!shikiImport) {
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shikiImport = import('shiki-es')
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.then(async (r) => {
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r.setCDN('/shiki/')
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shiki.value = await r.getHighlighter({
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themes: [
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'vitesse-dark',
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'vitesse-light',
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],
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langs: [
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'js',
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'css',
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'html',
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],
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})
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})
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}
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if (!shiki.value)
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return undefined
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if (!registeredLang.value.get(lang)) {
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shiki.value.loadLanguage(lang)
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.then(() => {
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registeredLang.value.set(lang, true)
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})
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.catch(() => {
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const fallbackLang = 'md'
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shiki.value?.loadLanguage(fallbackLang).then(() => {
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registeredLang.value.set(fallbackLang, true)
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})
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})
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return undefined
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}
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return shiki.value
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}
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export function useShikiTheme() {
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return useColorMode().value === 'dark' ? 'vitesse-dark' : 'vitesse-light'
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}
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export function highlightCode(code: string, lang: Lang) {
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const shiki = useHightlighter(lang)
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if (!shiki)
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return code
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return shiki.codeToHtml(code, {
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lang,
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theme: useShikiTheme(),
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})
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}
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export function useShiki() {
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return shiki
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}
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