no-muse
/
musescore-downloader
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

refactor

This commit is contained in:
Xmader 2020-05-18 18:44:45 -04:00
parent ccab1b1e6c
commit 88e10572b2
5 changed files with 145 additions and 101 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

112
src/main.ts
View File

@ -1,83 +1,15 @@
import './meta'
import { ScorePlayerData } from './types'
import { waitForDocumentLoaded } from './utils'
import { waitForDocumentLoaded, saveAs } from './utils'
import { downloadPDF } from './pdf'
import { fetchMscz, downloadMscz } from './mscz'
import * as recaptcha from './recaptcha'
import { PDFWorkerHelper } from './worker-helper'
import FileSaver from 'file-saver/dist/FileSaver.js'
const saveAs: typeof import('file-saver').saveAs = FileSaver.saveAs
import scoreinfo from './scoreinfo'
const PROCESSING_TEXT = 'Processing…'
const FAILED_TEXT = '❌Download Failed!'
const WEBMSCORE_URL = 'https://cdn.jsdelivr.net/npm/webmscore@0.5/webmscore.js'
let pdfBlob: Blob
let msczBufferP: Promise<ArrayBuffer> | undefined
const generatePDF = async (imgURLs: string[], imgType: 'svg' | 'png', name?: string): Promise<void> => {
if (pdfBlob) {
return saveAs(pdfBlob, `${name}.pdf`)
}
const cachedImg = document.querySelector('img[src*=score_]') as HTMLImageElement
const { naturalWidth: width, naturalHeight: height } = cachedImg
const worker = new PDFWorkerHelper()
const pdfArrayBuffer = await worker.generatePDF(imgURLs, imgType, width, height)
worker.terminate()
pdfBlob = new Blob([pdfArrayBuffer])
saveAs(pdfBlob, `${name}.pdf`)
}
const getPagesNumber = (scorePlayerData: ScorePlayerData): number => {
try {
return scorePlayerData.json.metadata.pages
} catch (_) {
return document.querySelectorAll('img[src*=score_]').length
}
}
const getImgType = (): 'svg' | 'png' | null => {
try {
const imgE = document.querySelector('img[src*=score_]') as HTMLImageElement
const { pathname } = new URL(imgE.src)
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
const imgtype = pathname.match(/\.(\w+)$/)![1]
return imgtype as 'svg' | 'png'
} catch (_) {
return null
}
}
const getTitle = (scorePlayerData: ScorePlayerData): string => {
try {
return scorePlayerData.json.metadata.title
} catch (_) {
return ''
}
}
const getScoreFileName = (scorePlayerData: ScorePlayerData): string => {
return getTitle(scorePlayerData).replace(/[\s<>:{}"/\\|?*~.\0\cA-\cZ]+/g, '_')
}
const fetchMscz = async (url: string): Promise<ArrayBuffer> => {
if (!msczBufferP) {
msczBufferP = (async (): Promise<ArrayBuffer> => {
const token = await recaptcha.execute()
const r = await fetch(url + token)
const data = await r.arrayBuffer()
return data
})()
}
return msczBufferP
}
const main = (): void => {
// @ts-ignore
if (!window.UGAPP || !window.UGAPP.store || !window.UGAPP.store.jmuse_settings) { return }
@ -86,20 +18,6 @@ const main = (): void => {
// eslint-disable-next-line @typescript-eslint/no-floating-promises
recaptcha.init()
// @ts-ignore
const scorePlayer: ScorePlayerData = window.UGAPP.store.jmuse_settings.score_player
const { id } = scorePlayer.json
const baseURL = scorePlayer.urls.image_path
const filename = getScoreFileName(scorePlayer)
// https://github.com/Xmader/cloudflare-worker-musescore-mscz
const msczURL = `https://musescore.now.sh/api/mscz?id=${id}&token=`
const mxlURL = baseURL + 'score.mxl'
const { midi: midiURL, mp3: mp3URL } = scorePlayer.urls
const btnsDiv = document.querySelector('.score-right .buttons-wrapper') || document.querySelectorAll('aside section > div')[4]
const downloadBtn = btnsDiv.querySelector('button, .button') as HTMLElement
downloadBtn.onclick = null
@ -111,18 +29,12 @@ const main = (): void => {
svgPath.setAttribute('d', 'M9.6 2.4h4.8V12h2.784l-5.18 5.18L6.823 12H9.6V2.4zM19.2 19.2H4.8v2.4h14.4v-2.4z')
}
const imgType = getImgType() || 'svg'
const sheetImgURLs = Array.from({ length: getPagesNumber(scorePlayer) }).fill(null).map((_, i) => {
return baseURL + `score_${i}.${imgType}`
})
const downloadURLs = {
MSCZ: null,
PDF: null,
MusicXML: mxlURL,
MIDI: midiURL,
MP3: mp3URL,
MusicXML: scoreinfo.mxlUrl,
MIDI: scoreinfo.midiUrl,
MP3: scoreinfo.mp3Url,
Parts: null,
}
@ -154,12 +66,10 @@ const main = (): void => {
if (name === 'PDF') {
btn.onclick = async (): Promise<void> => {
const filename = getScoreFileName(scorePlayer)
textNode.textContent = PROCESSING_TEXT
try {
await generatePDF(sheetImgURLs, imgType, filename)
await downloadPDF()
textNode.textContent = 'Download PDF'
} catch (err) {
textNode.textContent = FAILED_TEXT
@ -171,9 +81,8 @@ const main = (): void => {
textNode.textContent = PROCESSING_TEXT
try {
const data = new Blob([await fetchMscz(msczURL)])
await downloadMscz()
textNode.textContent = 'Download MSCZ'
saveAs(data, `${filename}.mscz`)
} catch (err) {
textNode.textContent = FAILED_TEXT
console.error(err)
@ -212,7 +121,7 @@ const main = (): void => {
// parse mscz data
const data = new Uint8Array(
new Uint8Array(await fetchMscz(msczURL)) // copy its ArrayBuffer
new Uint8Array(await fetchMscz()) // copy its ArrayBuffer
)
score = await w['WebMscore'].load('mscz', data)
await score.generateExcerpts()
@ -244,6 +153,7 @@ const main = (): void => {
await score.setExcerptId(id)
const filename = scoreinfo.fileName
const data = new Blob([await score.savePdf()])
saveAs(data, `${filename}-part-${id}.pdf`)
}

26
src/mscz.ts Normal file
View File

@ -0,0 +1,26 @@
import * as recaptcha from './recaptcha'
import { saveAs } from './utils'
import scoreinfo from './scoreinfo'
let msczBufferP: Promise<ArrayBuffer> | undefined
export const fetchMscz = async (): Promise<ArrayBuffer> => {
if (!msczBufferP) {
const url = scoreinfo.msczUrl
msczBufferP = (async (): Promise<ArrayBuffer> => {
const token = await recaptcha.execute()
const r = await fetch(url + token)
const data = await r.arrayBuffer()
return data
})()
}
return msczBufferP
}
export const downloadMscz = async (): Promise<void> => {
const data = new Blob([await fetchMscz()])
const filename = scoreinfo.fileName
saveAs(data, `${filename}.mscz`)
}

34
src/pdf.ts Normal file
View File

@ -0,0 +1,34 @@
import { PDFWorkerHelper } from './worker-helper'
import { saveAs } from './utils'
import scoreinfo from './scoreinfo'
let pdfBlob: Blob
const _downloadPDF = async (imgURLs: string[], imgType: 'svg' | 'png', name?: string): Promise<void> => {
if (pdfBlob) {
return saveAs(pdfBlob, `${name}.pdf`)
}
const cachedImg = document.querySelector('img[src*=score_]') as HTMLImageElement
const { naturalWidth: width, naturalHeight: height } = cachedImg
const worker = new PDFWorkerHelper()
const pdfArrayBuffer = await worker.generatePDF(imgURLs, imgType, width, height)
worker.terminate()
pdfBlob = new Blob([pdfArrayBuffer])
saveAs(pdfBlob, `${name}.pdf`)
}
export const downloadPDF = async (): Promise<void> => {
const imgType = scoreinfo.sheetImgType
const pageCount = scoreinfo.pageCount
const sheetImgURLs = Array.from({ length: pageCount }).map((_, i) => {
return scoreinfo.baseUrl + `score_${i}.${imgType}`
})
return _downloadPDF(sheetImgURLs, imgType, scoreinfo.fileName)
}

70
src/scoreinfo.ts Normal file
View File

@ -0,0 +1,70 @@
import { ScorePlayerData } from './types'
const scoreinfo = {
get playerdata (): ScorePlayerData {
// @ts-ignore
return window.UGAPP.store.jmuse_settings.score_player
},
get id (this: typeof scoreinfo): number {
return this.playerdata.json.id
},
get title (this: typeof scoreinfo): string {
try {
return this.playerdata.json.metadata.title
} catch (_) {
return ''
}
},
get fileName (this: typeof scoreinfo): string {
return this.title.replace(/[\s<>:{}"/\\|?*~.\0\cA-\cZ]+/g, '_')
},
get pageCount (this: typeof scoreinfo): number {
try {
return this.playerdata.json.metadata.pages
} catch (_) {
return document.querySelectorAll('img[src*=score_]').length
}
},
get baseUrl (this: typeof scoreinfo): string {
return this.playerdata.urls.image_path
},
get mxlUrl (this: typeof scoreinfo): string {
return this.baseUrl + 'score.mxl'
},
get midiUrl (this: typeof scoreinfo): string {
return this.playerdata.urls.midi
},
get mp3Url (this: typeof scoreinfo): string {
return this.playerdata.urls.mp3
},
get msczUrl (this: typeof scoreinfo): string {
// https://github.com/Xmader/cloudflare-worker-musescore-mscz
return `https://musescore.now.sh/api/mscz?id=${this.id}&token=`
},
get sheetImgType (): 'svg' | 'png' {
try {
const imgE = document.querySelector('img[src*=score_]') as HTMLImageElement
const { pathname } = new URL(imgE.src)
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
const imgtype = pathname.match(/\.(\w+)$/)![1]
return imgtype as 'svg' | 'png'
} catch (_) {
// return null
return 'svg'
}
},
}
export default scoreinfo

4
src/utils.ts
View File

@ -1,4 +1,8 @@
import FileSaver from 'file-saver/dist/FileSaver.js'
export const saveAs: typeof import('file-saver').saveAs = FileSaver.saveAs
export const getIndexPath = (id: number): string => {
const idStr = String(id)
// 获取最后三位，倒序排列