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640f2cfc8f
GitOrigin-RevId: 14adc6c35d511d6737d0f3b8c0adec00d8a0abb6
55 lines
1.6 KiB
TypeScript
55 lines
1.6 KiB
TypeScript
import getMeta from '../../utils/meta'
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let mathJaxPromise: Promise<typeof window.MathJax>
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export const loadMathJax = async () => {
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if (!mathJaxPromise) {
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mathJaxPromise = new Promise((resolve, reject) => {
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// https://docs.mathjax.org/en/v3.2-latest/upgrading/v2.html
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window.MathJax = {
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// https://docs.mathjax.org/en/latest/options/input/tex.html#the-configuration-block
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tex: {
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inlineMath: [
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['\\(', '\\)'],
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['$', '$'],
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],
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displayMath: [
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['\\[', '\\]'],
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['$$', '$$'],
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],
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packages: {
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'[-]': [
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'html', // avoid creating HTML elements/attributes
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'require', // prevent loading disabled packages
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],
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},
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processEscapes: true,
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processEnvironments: true,
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},
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loader: {
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load: [
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'ui/safe', // https://docs.mathjax.org/en/latest/options/safe.html
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],
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},
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options: {
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enableMenu: false, // https://docs.mathjax.org/en/latest/options/menu.html
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},
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startup: {
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typeset: false,
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},
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}
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const script = document.createElement('script')
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script.src = getMeta('ol-mathJax3Path')
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script.addEventListener('load', async () => {
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await window.MathJax.startup.promise
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document.head.appendChild(window.MathJax.svgStylesheet())
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resolve(window.MathJax)
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})
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script.addEventListener('error', reject)
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document.head.append(script)
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})
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}
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return mathJaxPromise
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}
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