31 lines
876 B
TypeScript
31 lines
876 B
TypeScript
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import { fetchMscz } from './mscz'
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const WEBMSCORE_URL = 'https://cdn.jsdelivr.net/npm/webmscore@0.10/webmscore.js'
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export type WebMscore = import('webmscore').default
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const initMscore = async (w: Window) => {
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if (!w['WebMscore']) {
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// init webmscore (https://github.com/LibreScore/webmscore)
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const script = w.document.createElement('script')
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script.src = WEBMSCORE_URL
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w.document.body.append(script)
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await new Promise(resolve => { script.onload = resolve })
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}
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}
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export const loadMscore = async (w: Window): Promise<WebMscore> => {
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await initMscore(w)
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const WebMscore: typeof import('webmscore').default = w['WebMscore']
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// parse mscz data
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const data = new Uint8Array(
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new Uint8Array(await fetchMscz()), // copy its ArrayBuffer
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)
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const score = await WebMscore.load('mscz', data)
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await score.generateExcerpts()
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return score
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}
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