vscode/extensions/notebook-markdown-extensions/notebook/katex.ts
Matt Bierner 9464d14f31
Make notebook renderer activate potentially async (#124647)
* Make notebook renderer activate potentially async

- Allow activate to be `async`
- Make `getRenderer` always return a promise instead of the api result directly

* Add comment on why we use async
2021-05-26 09:15:00 -07:00

36 lines
1.2 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import type * as markdownIt from 'markdown-it';
const styleHref = import.meta.url.replace(/katex.js$/, 'katex.min.css');
export async function activate(ctx: {
getRenderer: (id: string) => Promise<any | undefined>
}) {
const markdownItRenderer = await ctx.getRenderer('markdownItRenderer');
if (!markdownItRenderer) {
throw new Error('Could not load markdownItRenderer');
}
const link = document.createElement('link');
link.rel = 'stylesheet';
link.classList.add('markdown-style');
link.href = styleHref;
document.head.append(link);
const style = document.createElement('style');
style.classList.add('markdown-style');
style.textContent = `
.katex-error {
color: var(--vscode-editorError-foreground);
}
`;
document.head.append(style);
const katex = require('@iktakahiro/markdown-it-katex');
markdownItRenderer.extendMarkdownIt((md: markdownIt.MarkdownIt) => {
return md.use(katex);
});
}