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v0.26.0
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@Xmader
Xmader committed Aug 1, 2021
1 parent 04a7660 commit 78f0911
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127 changes: 92 additions & 35 deletions dist/main.js
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Expand Up @@ -5,7 +5,7 @@
// @supportURL https://github.com/Xmader/musescore-downloader/issues
// @updateURL https://msdl.librescore.org/install.user.js
// @downloadURL https://msdl.librescore.org/install.user.js
// @version 0.25.0
// @version 0.26.0
// @description download sheet music from musescore.com for free, no login or Musescore Pro required | 免登录、免 Musescore Pro，免费下载 musescore.com 上的曲谱
// @author Xmader
// @icon https://librescore.org/img/icons/logo.svg
Expand Down Expand Up @@ -358,10 +358,15 @@
}
};
const fetchData = (url, init) => __awaiter(void 0, void 0, void 0, function* () {
const r = yield fetch(url, init);
const _fetch = getFetch();
const r = yield _fetch(url, init);
const data = yield r.arrayBuffer();
return new Uint8Array(data);
});
const fetchBuffer = (url, init) => __awaiter(void 0, void 0, void 0, function* () {
const d = yield fetchData(url, init);
return Buffer.from(d.buffer);
});
const assertRes = (r) => {
if (!r.ok)
throw new Error(`${r.url} ${r.status} ${r.statusText}`);
Expand Down Expand Up @@ -449,7 +454,7 @@
};

const PDFWorker = function () {
(function () {
var worker = (function (exports) {

function __awaiter(thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
Expand Down Expand Up @@ -26444,28 +26449,47 @@ Please pipe the document into a Node stream.\
});

/// <reference lib="webworker" />
const readData = (blob, type) => {
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onload = () => {
const result = reader.result;
resolve(result);
};
reader.onerror = reject;
const readData = (data, type) => {
if (!(data instanceof Uint8Array)) { // blob
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onload = () => {
const result = reader.result;
resolve(result);
};
reader.onerror = reject;
if (type === 'dataUrl') {
reader.readAsDataURL(data);
}
else {
reader.readAsText(data);
}
});
}
else { // buffer
if (type === 'dataUrl') {
reader.readAsDataURL(blob);
return 'data:image/png;base64,' + data.toString('base64');
}
else {
reader.readAsText(blob);
return data.toString('utf-8');
}
});
}
};
/**
* @platform browser
*/
const fetchBlob = (imgUrl) => __awaiter(void 0, void 0, void 0, function* () {
const r = yield fetch(imgUrl, {
cache: 'no-cache',
});
return r.blob();
});
/**
* @example
* import { PDFWorker } from '../dist/cache/worker'
* const { generatePDF } = PDFWorker()
* const pdfData = await generatePDF(...)
*/
const generatePDF = (imgBlobs, imgType, width, height) => __awaiter(void 0, void 0, void 0, function* () {
// @ts-ignore
const pdf = new PDFDocument({
Expand Down Expand Up @@ -26498,20 +26522,35 @@ Please pipe the document into a Node stream.\
const buf = yield pdf.getBuffer();
return buf.buffer;
});
onmessage = (e) => __awaiter(void 0, void 0, void 0, function* () {
const [imgUrls, imgType, width, height,] = e.data;
const imgBlobs = yield Promise.all(imgUrls.map(url => fetchBlob(url)));
const pdfBuf = yield generatePDF(imgBlobs, imgType, width, height);
postMessage(pdfBuf, [pdfBuf]);
});
/**
* @platform browser (web worker)
*/
if (typeof onmessage !== 'undefined') {
onmessage = (e) => __awaiter(void 0, void 0, void 0, function* () {
const [imgUrls, imgType, width, height,] = e.data;
const imgBlobs = yield Promise.all(imgUrls.map(url => fetchBlob(url)));
const pdfBuf = yield generatePDF(imgBlobs, imgType, width, height);
postMessage(pdfBuf, [pdfBuf]);
});
}

}());
exports.generatePDF = generatePDF;

return exports;

}({}));
return worker
};

const scriptUrlFromFunction = (fn) => {
const blob = new Blob(['(' + fn.toString() + ')()'], { type: 'application/javascript' });
return window.URL.createObjectURL(blob);
};
// Node.js fix
if (typeof Worker === 'undefined') {
globalThis.Worker = class {
}; // noop shim
}
class PDFWorkerHelper extends Worker {
constructor() {
const url = scriptUrlFromFunction(PDFWorker);
Expand Down Expand Up @@ -26706,20 +26745,19 @@ Please pipe the document into a Node stream.\
return info.url;
});

let pdfBlob;
const _downloadPDF = (imgURLs, imgType, name = '') => __awaiter(void 0, void 0, void 0, function* () {
if (pdfBlob) {
return FileSaver_min.saveAs(pdfBlob, `${name}.pdf`);
}
const cachedImg = document.querySelector('img[src*=score_]');
const { naturalWidth: width, naturalHeight: height } = cachedImg;
const _exportPDFBrowser = (imgURLs, imgType, dimensions) => __awaiter(void 0, void 0, void 0, function* () {
const worker = new PDFWorkerHelper();
const pdfArrayBuffer = yield worker.generatePDF(imgURLs, imgType, width, height);
const pdfArrayBuffer = yield worker.generatePDF(imgURLs, imgType, dimensions.width, dimensions.height);
worker.terminate();
pdfBlob = new Blob([pdfArrayBuffer]);
FileSaver_min.saveAs(pdfBlob, `${name}.pdf`);
return pdfArrayBuffer;
});
const downloadPDF = (scoreinfo, sheet) => __awaiter(void 0, void 0, void 0, function* () {
const _exportPDFNode = (imgURLs, imgType, dimensions) => __awaiter(void 0, void 0, void 0, function* () {
const imgBufs = yield Promise.all(imgURLs.map(url => fetchBuffer(url)));
const { generatePDF } = PDFWorker();
const pdfArrayBuffer = yield generatePDF(imgBufs, imgType, dimensions.width, dimensions.height);
return pdfArrayBuffer;
});
const exportPDF = (scoreinfo, sheet) => __awaiter(void 0, void 0, void 0, function* () {
const imgType = sheet.imgType;
const pageCount = sheet.pageCount;
const rs = Array.from({ length: pageCount }).map((_, i) => {
Expand All @@ -26731,7 +26769,23 @@ Please pipe the document into a Node stream.\
}
});
const sheetImgURLs = yield Promise.all(rs);
return _downloadPDF(sheetImgURLs, imgType, scoreinfo.fileName);
const args = [sheetImgURLs, imgType, sheet.dimensions];
if (!detectNode) {
return _exportPDFBrowser(...args);
}
else {
return _exportPDFNode(...args);
}
});
let pdfBlob;
const downloadPDF = (scoreinfo, sheet, saveAs) => __awaiter(void 0, void 0, void 0, function* () {
const name = scoreinfo.fileName;
if (pdfBlob) {
return saveAs(pdfBlob, `${name}.pdf`);
}
const pdfArrayBuffer = yield exportPDF(scoreinfo, sheet);
pdfBlob = new Blob([pdfArrayBuffer]);
saveAs(pdfBlob, `${name}.pdf`);
});

const MSCZ_BUF_SYM = Symbol('msczBufferP');
Expand Down Expand Up @@ -27449,11 +27503,14 @@ Please pipe the document into a Node stream.\
}
get thumbnailUrl() {
var _a;
// url to the image of the first page
const el = this.document.querySelector('link[as=image]');
const url = ((el === null || el === void 0 ? void 0 : el.href) || ((_a = this.sheet0Img) === null || _a === void 0 ? void 0 : _a.src));
return url.split('@')[0];
}
get dimensions() {
const { naturalWidth: width, naturalHeight: height } = this.sheet0Img;
return { width, height };
}
}
const getActualId = (scoreinfo, _fetch = getFetch()) => __awaiter(void 0, void 0, void 0, function* () {
if (scoreinfo.id <= 1000000000000) {
Expand Down Expand Up @@ -27497,7 +27554,7 @@ Please pipe the document into a Node stream.\
});
btnList.add({
name: i18n('DOWNLOAD')('PDF'),
action: BtnAction.process(() => downloadPDF(scoreinfo, new SheetInfoInPage(document)), fallback, 3 * 60 * 1000 /* 3min */),
action: BtnAction.process(() => downloadPDF(scoreinfo, new SheetInfoInPage(document), saveAs), fallback, 3 * 60 * 1000 /* 3min */),
});
btnList.add({
name: i18n('DOWNLOAD')('MXL'),
Expand Down
2 changes: 1 addition & 1 deletion package-lock.json
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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
{
"name": "musescore-downloader",
"version": "0.25.0",
"version": "0.26.0",
"description": "download sheet music from musescore.com for free, no login or Musescore Pro required | 免登录、免 Musescore Pro，免费下载 musescore.com 上的曲谱",
"main": "dist/main.js",
"bin": "dist/cli.js",
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