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<!--
SPDX-FileCopyrightText: syuilo and other misskey contributors
SPDX-License-Identifier: AGPL-3.0-only
-->
<!-- eslint-disable vue/no-v-html -->
<template>
<div :class="['codeBlockRoot', { 'codeEditor': codeEditor }]" v-html="html"></div>
</template>
<script lang="ts" setup>
import { ref, computed, watch } from 'vue';
import { BUNDLED_LANGUAGES } from 'shiki';
import type { Lang as ShikiLang } from 'shiki';
import { getHighlighter } from '@/scripts/code-highlighter.js';
const props = defineProps<{
code: string;
lang?: string;
codeEditor?: boolean;
}>();
const highlighter = await getHighlighter();
const codeLang = ref<ShikiLang | 'aiscript'>('js');
const html = computed(() => highlighter.codeToHtml(props.code, {
lang: codeLang.value,
theme: 'dark-plus',
}));
async function fetchLanguage(to: string): Promise<void> {
const language = to as ShikiLang;
// Check for the loaded languages, and load the language if it's not loaded yet.
if (!highlighter.getLoadedLanguages().includes(language)) {
// Check if the language is supported by Shiki
const bundles = BUNDLED_LANGUAGES.filter((bundle) => {
// Languages are specified by their id, they can also have aliases (i. e. "js" and "javascript")
return bundle.id === language || bundle.aliases?.includes(language);
});
if (bundles.length > 0) {
await highlighter.loadLanguage(language);
codeLang.value = language;
} else {
codeLang.value = 'js';
}
} else {
codeLang.value = language;
}
}
watch(() => props.lang, (to) => {
if (codeLang.value === to || !to) return;
return new Promise((resolve) => {
fetchLanguage(to).then(() => resolve);
});
}, { immediate: true });
</script>
<style scoped lang="scss">
.codeBlockRoot :deep(.shiki) {
padding: 1em;
margin: .5em 0;
overflow: auto;
border-radius: var(--radius-sm);
& pre,
& code {
font-family: Consolas, Monaco, Andale Mono, Ubuntu Mono, monospace;
}
}
.codeBlockRoot.codeEditor {
min-width: 100%;
height: 100%;
& :deep(.shiki) {
padding: 12px;
margin: 0;
border-radius: var(--radius-sm);
min-height: 130px;
pointer-events: none;
min-width: calc(100% - 24px);
height: 100%;
display: inline-block;
line-height: 1.5em;
font-size: 1em;
overflow: visible;
text-rendering: inherit;
text-transform: inherit;
white-space: pre;
}
}
</style>
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