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<!--
SPDX-FileCopyrightText: syuilo and misskey-project
SPDX-License-Identifier: AGPL-3.0-only
-->
<!-- eslint-disable vue/no-v-html -->
<template>
<div :class="[$style.codeBlockRoot, { [$style.codeEditor]: codeEditor }, (darkMode ? $style.dark : $style.light)]" v-html="html"></div>
</template>
<script lang="ts" setup>
import { ref, computed, watch } from 'vue';
import { bundledLanguagesInfo } from 'shiki';
import type { BuiltinLanguage } from 'shiki';
import { getHighlighter, getTheme } from '@/scripts/code-highlighter.js';
import { defaultStore } from '@/store.js';
const props = defineProps<{
code: string;
lang?: string;
codeEditor?: boolean;
}>();
const highlighter = await getHighlighter();
const darkMode = defaultStore.reactiveState.darkMode;
const codeLang = ref<BuiltinLanguage | 'aiscript'>('js');
const [lightThemeName, darkThemeName] = await Promise.all([
getTheme('light', true),
getTheme('dark', true),
]);
const html = computed(() => highlighter.codeToHtml(props.code, {
lang: codeLang.value,
themes: {
fallback: 'dark-plus',
light: lightThemeName,
dark: darkThemeName,
},
defaultColor: false,
cssVariablePrefix: '--shiki-',
}));
async function fetchLanguage(to: string): Promise<void> {
const language = to as BuiltinLanguage;
// 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 = bundledLanguagesInfo.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) {
console.log(`Loading language: ${language}`);
await highlighter.loadLanguage(bundles[0].import);
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 module lang="scss">
.codeBlockRoot :global(.shiki) {
padding: 1em;
margin: .5em 0;
overflow: auto;
border-radius: 8px;
border: 1px solid var(--divider);
font-family: Consolas, Monaco, Andale Mono, Ubuntu Mono, monospace;
color: var(--shiki-fallback);
background-color: var(--shiki-fallback-bg);
& span {
color: var(--shiki-fallback);
background-color: var(--shiki-fallback-bg);
}
& pre,
& code {
font-family: Consolas, Monaco, Andale Mono, Ubuntu Mono, monospace;
}
}
.light.codeBlockRoot :global(.shiki) {
color: var(--shiki-light);
background-color: var(--shiki-light-bg);
& span {
color: var(--shiki-light);
background-color: var(--shiki-light-bg);
}
}
.dark.codeBlockRoot :global(.shiki) {
color: var(--shiki-dark);
background-color: var(--shiki-dark-bg);
& span {
color: var(--shiki-dark);
background-color: var(--shiki-dark-bg);
}
}
.codeBlockRoot.codeEditor {
min-width: 100%;
height: 100%;
& :global(.shiki) {
padding: 12px;
margin: 0;
border-radius: 6px;
border: none;
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;
& span {
display: inline-block;
min-height: 1em;
}
}
}
</style>
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