134 lines
3.9 KiB
TypeScript
134 lines
3.9 KiB
TypeScript
import './meta'
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import { waitForDocumentLoaded, saveAs } from './utils'
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import { downloadPDF } from './pdf'
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import { fetchMscz, downloadMscz } from './mscz'
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import { getDownloadBtn, BtnList, BtnAction } from './btn'
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import * as recaptcha from './recaptcha'
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import scoreinfo from './scoreinfo'
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const WEBMSCORE_URL = 'https://cdn.jsdelivr.net/npm/webmscore@0.5/webmscore.js'
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const main = (): void => {
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// @ts-ignore
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if (!window.UGAPP || !window.UGAPP.store || !window.UGAPP.store.jmuse_settings) { return }
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// init recaptcha
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// eslint-disable-next-line @typescript-eslint/no-floating-promises
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recaptcha.init()
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const btnList = new BtnList(getDownloadBtn())
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btnList.add({
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name: 'Download MSCZ',
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action: BtnAction.process(downloadMscz),
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})
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btnList.add({
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name: 'Download PDF',
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action: BtnAction.process(downloadPDF),
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})
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btnList.add({
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name: 'Download MusicXML',
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action: BtnAction.openUrl(scoreinfo.mxlUrl),
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})
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btnList.add({
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name: 'Download MIDI',
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action: BtnAction.openUrl(scoreinfo.midiUrl),
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})
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btnList.add({
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name: 'Download MP3',
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action: BtnAction.openUrl(scoreinfo.mp3Url),
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})
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btnList.add({
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name: 'Individual Parts',
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async action (btnName, btn, setText) {
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const _onclick = btn.onclick
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btn.onclick = null
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setText(BtnAction.PROCESSING_TEXT)
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const w = window.open('') as Window
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const txt = document.createTextNode(BtnAction.PROCESSING_TEXT)
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w.document.body.append(txt)
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// set page hooks
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// eslint-disable-next-line prefer-const
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let score: any
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const destroy = (): void => {
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score && score.destroy()
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w.close()
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}
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window.addEventListener('unload', destroy)
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w.addEventListener('beforeunload', () => {
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score && score.destroy()
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window.removeEventListener('unload', destroy)
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setText(btnName)
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btn.onclick = _onclick
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})
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// load 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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// 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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score = await w['WebMscore'].load('mscz', data)
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await score.generateExcerpts()
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const metadata = await score.metadata()
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console.log('score metadata loaded by webmscore', metadata)
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// render the part selection page
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txt.remove()
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const fieldset = w.document.createElement('fieldset')
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metadata.excerpts.unshift({ id: -1, title: 'Full score' })
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for (const excerpt of metadata.excerpts) {
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const id = excerpt.id
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const partName = excerpt.title
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const e = w.document.createElement('input')
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e.name = 'score-part'
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e.type = 'radio'
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e.alt = partName
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e.value = id
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e.checked = id === 0 // initially select the first part
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const label = w.document.createElement('label')
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label.innerText = partName
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const br = w.document.createElement('br')
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fieldset.append(e, label, br)
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}
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const submitBtn = w.document.createElement('input')
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submitBtn.type = 'submit'
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submitBtn.value = 'Download PDF'
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fieldset.append(submitBtn)
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w.document.body.append(fieldset)
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submitBtn.onclick = async (): Promise<void> => {
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const checked = fieldset.querySelector('input:checked') as HTMLInputElement
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const id = checked.value
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const partName = checked.alt
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await score.setExcerptId(id)
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const filename = scoreinfo.fileName
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const data = new Blob([await score.savePdf()])
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saveAs(data, `${filename} - ${partName}.pdf`)
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}
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},
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}).title = 'Download individual parts (BETA)'
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btnList.commit()
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}
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// eslint-disable-next-line @typescript-eslint/no-floating-promises
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waitForDocumentLoaded().then(main)
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