59 lines
2.0 KiB
TypeScript
59 lines
2.0 KiB
TypeScript
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import type * as markdownIt from 'markdown-it';
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import type { RendererContext } from 'vscode-notebook-renderer';
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const styleHref = import.meta.url.replace(/katex.js$/, 'katex.min.css');
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export async function activate(ctx: RendererContext<void>) {
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const markdownItRenderer = (await ctx.getRenderer('vscode.markdown-it-renderer')) as undefined | any;
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if (!markdownItRenderer) {
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throw new Error(`Could not load 'vscode.markdown-it-renderer'`);
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}
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// Add katex styles to be copied to shadow dom
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const link = document.createElement('link');
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link.rel = 'stylesheet';
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link.classList.add('markdown-style');
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link.href = styleHref;
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// Add same katex style to root document.
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// This is needed for the font to be loaded correctly inside the shadow dom.
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//
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// Seems like https://bugs.chromium.org/p/chromium/issues/detail?id=336876
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const linkHead = document.createElement('link');
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linkHead.rel = 'stylesheet';
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linkHead.href = styleHref;
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document.head.appendChild(linkHead);
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const style = document.createElement('style');
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style.textContent = `
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.katex-error {
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color: var(--vscode-editorError-foreground);
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}
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.katex-block {
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counter-reset: katexEqnNo mmlEqnNo;
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}
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`;
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// Put Everything into a template
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const styleTemplate = document.createElement('template');
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styleTemplate.classList.add('markdown-style');
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styleTemplate.content.appendChild(style);
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styleTemplate.content.appendChild(link);
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document.head.appendChild(styleTemplate);
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const katex = require('@vscode/markdown-it-katex').default;
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const macros = {};
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markdownItRenderer.extendMarkdownIt((md: markdownIt.MarkdownIt) => {
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return md.use(katex, {
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globalGroup: true,
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enableBareBlocks: true,
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enableFencedBlocks: true,
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macros,
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});
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});
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}
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