-
-
-
-
- `], { type: 'text/html' }));
- return src
-};
-
-const makeTOCItem = item => ({
- label: item.title,
- href: item.dest ? JSON.stringify(item.dest) : null,
- subitems: item.items.length ? item.items.map(makeTOCItem) : null,
-});
-function getPasswordPrompt(type = "need") {
- const lang = navigator.language?.toLowerCase() || "en";
- if (lang.startsWith("zh")) {
- return type === "need"
- ? "请输入PDF密码："
- : "密码错误，请重新输入：";
- }
- // 可扩展更多语言
- return type === "need"
- ? "Need password to open this PDF:"
- : "Incorrect password, please try again:";
-}
-const makePDF = async (file, password) => {
- let pdf;
- while (true) {
- // 每次都新建 transport，避免 no PDFDataTransportStreamRangeReader instance found 错误
- const transport = new pdfjsLib.PDFDataRangeTransport(file.size, []);
- transport.requestDataRange = (begin, end) => {
- file.slice(begin, end).arrayBuffer().then(chunk => {
- transport.onDataRange(begin, chunk);
- });
- };
- try {
- pdf = await pdfjsLib.getDocument({
- range: transport,
- cMapUrl: pdfjsPath('cmaps/'),
- standardFontDataUrl: pdfjsPath('standard_fonts/'),
- isEvalSupported: false,
- password,
- }).promise;
- break; // 成功加载，跳出循环
- } catch (e) {
- if (e.name === 'PasswordException') {
- if (e.code === pdfjsLib.PasswordResponses.NEED_PASSWORD) {
- // 如果是 Electron 环境，使用 electron-prompt 获取密码
- if (isElectron()) {
- password = await vexPromptAsync(getPasswordPrompt("need"), '', '');
- vex.closeAll(); // 关闭对话框
- } else {
- password = prompt(getPasswordPrompt("need"));
- }
-
- } else if (e.code === pdfjsLib.PasswordResponses.INCORRECT_PASSWORD) {
- if (isElectron()) {
- password = await vexPromptAsync(getPasswordPrompt("incorrect"), '', '');
- vex.closeAll(); // 关闭对话框
- } else {
- password = prompt(getPasswordPrompt("incorrect"));
- }
-
- }
- if (!password) {
- throw new Error('PDF loading failed: no password provided');
- }
- } else {
- throw e;
- }
- }
- }
- let isScannedPdf = false;
-
- let testedPage = pdf.numPages > 0 ? await pdf.getPage(Math.floor(pdf.numPages / 2) + 1) : null;
- if (testedPage) {
- const textContent = await testedPage.getTextContent();
- isScannedPdf = textContent.items.length === 0;
- // 进一步检查文本有效性（避免误判带OCR的扫描件）
- if (textContent.items.length > 0) {
- const totalChars = textContent.items.reduce(
- (sum, item) => sum + item.str.trim().length, 0
- );
- // 阈值策略：字符少于50或文本覆盖率过低
- isScannedPdf = totalChars < 40;
- }
- testedPage.cleanup();
- }
-
-
- const book = { rendition: { layout: 'pre-paginated' } };
-
- const { metadata, info } = await pdf.getMetadata() ?? {};
- // TODO: for better results, parse `metadata.getRaw()`
- book.metadata = {
- title: metadata?.get('dc:title') ?? info?.Title,
- author: metadata?.get('dc:creator') ?? info?.Author,
- contributor: metadata?.get('dc:contributor'),
- description: metadata?.get('dc:description') ?? info?.Subject,
- language: metadata?.get('dc:language'),
- publisher: metadata?.get('dc:publisher'),
- subject: metadata?.get('dc:subject'),
- identifier: metadata?.get('dc:identifier'),
- source: metadata?.get('dc:source'),
- rights: metadata?.get('dc:rights'),
- };
- book.metadata.description = (book.metadata.description ? book.metadata.description : "") +
- (isScannedPdf ? "\nscanned PDF" : "") + (password ? ("\nprotected PDF: #" + password + "#") : "");
-
- const outline = await pdf.getOutline();
- book.toc = outline?.map(makeTOCItem);
-
- const cache = new Map();
- book.sections = Array.from({ length: pdf.numPages }).map((_, i) => ({
- id: i,
- load: async () => {
- const cached = cache.get(i);
- if (cached) return cached
- const url = await renderPage(await pdf.getPage(i + 1));
- cache.set(i, url);
- return url
- },
- unload: async () => {
- let page = await pdf.getPage(i + 1);
- page.cleanup();
- },
- render: async (doc, scale, isMobile, isDarkMode) => {
- await render(await pdf.getPage(i + 1), doc, scale, isMobile);
- },
- getTextContent: async () => {
- const page = await pdf.getPage(i + 1);
- const textContent = await page.getTextContent();
- return textContent
- // return textContent.items.map(item => item.str).join('\n')
- },
- size: 1000,
- getDimension: async () => {
- let viewport = (await pdf.getPage(i + 1)).getViewport({ scale: 1 });
- return { width: viewport.width, height: viewport.height }
- },
- getPage: async () => {
- return await pdf.getPage(i + 1)
- }
- }));
- book.isExternal = uri => /^\w+:/i.test(uri);
- book.resolveHref = async href => {
- const parsed = JSON.parse(href);
- const dest = typeof parsed === 'string'
- ? await pdf.getDestination(parsed) : parsed;
- const index = await pdf.getPageIndex(dest[0]);
- return { index }
- };
- book.splitTOCHref = async href => {
- const parsed = JSON.parse(href);
- const dest = typeof parsed === 'string'
- ? await pdf.getDestination(parsed) : parsed;
- const index = await pdf.getPageIndex(dest[0]);
- return [index, null]
- };
- book.getTOCFragment = doc => doc.documentElement;
- book.getCover = async () => renderPage(await pdf.getPage(1), true);
- book.destroy = () => pdf.destroy();
- return book
-};
-const isPDF = async file => {
- const arr = new Uint8Array(await file.slice(0, 5).arrayBuffer());
- return arr[0] === 0x25
- && arr[1] === 0x50 && arr[2] === 0x44 && arr[3] === 0x46
- && arr[4] === 0x2d
-};
-
-class PdfRender extends GeneralRender {
- constructor(pdfBuffer, config) {
- super(Object.assign(Object.assign({}, config), { convertChinese: "Default", format: "PDF" }));
- this.isStartFromEven = "no";
- this.password = "";
- this.scale = 1;
- this.pdfBuffer = pdfBuffer;
- this.isStartFromEven = config.isStartFromEven || "no";
- this.password = config.password || "";
- this.scale = config.scale || 1;
- this.backgroundColor = config.backgroundColor || "#ffffff";
- this.isScannedPDF = config.isScannedPDF || "no";
- this.platform = config.platform || "web";
- }
- renderTo(element) {
- return new Promise((resolve, reject) => __awaiter(this, void 0, void 0, function* () {
- this.element = element;
- if (!this.book) {
- yield this.parse();
- }
- let parser = new GeneralParser(this.book);
- this.chapterList = yield parser.getChapter(this.book.toc);
- this.chapterDocList = yield parser.getChapterDoc();
- if (this.isStartFromEven === "yes") {
- this.chapterDocList = [
- {
- label: "",
- text: {
- load: () => __awaiter(this, void 0, void 0, function* () { return ""; }),
- render: () => __awaiter(this, void 0, void 0, function* () { }),
- unload: () => __awaiter(this, void 0, void 0, function* () { }),
- getPage: () => __awaiter(this, void 0, void 0, function* () { return null; }),
- getDimension: () => __awaiter(this, void 0, void 0, function* () { return ({ width: 0, height: 0 }); }),
- getScale: () => __awaiter(this, void 0, void 0, function* () { return 1; }),
- getPageCount: () => __awaiter(this, void 0, void 0, function* () { return 0; }),
- },
- href: "",
- },
- ...this.chapterDocList,
- ];
- }
- if (document.body.clientWidth * Math.abs(this.scale) -
- document.body.clientWidth * 0.4 >
- document.body.clientWidth &&
- this.readerMode !== "double") {
- createIframe(element, this.scale);
- }
- else {
- createIframe(element);
- }
- const viewport = yield this.chapterDocList[Math.floor(this.chapterDocList.length / 2)].text.getDimension();
- let doc = this.getDocument();
- if (!doc)
- return;
- createPDFContainer(doc.body || doc.documentElement, this.chapterDocList, viewport, this.readerMode);
- let scrollTimeout = null;
- if (this.readerMode === "scroll") {
- this.element.addEventListener("scroll", (e) => {
- if (scrollTimeout) {
- clearTimeout(scrollTimeout);
- }
- scrollTimeout = setTimeout(() => __awaiter(this, void 0, void 0, function* () {
- yield this.handlePDFScrollEvent(doc);
- yield this.record();
- }), 100); // Debounce selection events
- });
- }
- else {
- doc.addEventListener("scroll", (e) => {
- if (scrollTimeout) {
- clearTimeout(scrollTimeout);
- }
- scrollTimeout = setTimeout(() => __awaiter(this, void 0, void 0, function* () {
- yield this.handlePDFScrollEvent(doc);
- yield this.record();
- }), 200); // Debounce selection events
- });
- }
- handlePDFLayout(element, this.readerMode, doc);
- resolve();
- }));
- }
- handlePDFScrollEvent(doc) {
- return __awaiter(this, void 0, void 0, function* () {
- let subContainers = doc.querySelectorAll(".pdf-container");
- for (let index = 0; index < subContainers.length; index++) {
- let subContainer = subContainers[index];
- let id = subContainer.getAttribute("id");
- if (!id)
- continue;
- let chapterDocIndex = parseInt(id.split("-").reverse()[0]);
- if (isPDFScrolledIntoView(this.element, subContainer, this.readerMode, doc)) {
- yield this.renderPdfPage(chapterDocIndex, doc);
- }
- }
- });
- }
- parse() {
- return __awaiter(this, void 0, void 0, function* () {
- try {
- let blob = new Blob([this.pdfBuffer]);
- let file = new File([blob], "book", {
- lastModified: new Date().getTime(),
- type: blob.type,
- });
- if (yield isPDF(file)) {
- this.book = yield makePDF(file, this.password);
- }
- }
- catch (error) {
- console.error(error);
- throw error;
- }
- });
- }
- preCache() {
- return __awaiter(this, void 0, void 0, function* () {
- return "";
- // if (!this.book) {
- // await this.parse();
- // }
- // return await getCache(this.book);
- });
- }
- goToChapterIndex(targetChapterIndex) {
- return __awaiter(this, void 0, void 0, function* () {
- if (this.chapterDocList.length > 0) {
- yield this.goToChapter(targetChapterIndex, this.chapterDocList[targetChapterIndex].href, this.chapterDocList[targetChapterIndex].label);
- }
- });
- }
- getPageSize() {
- let doc = this.getDocument();
- if (!doc)
- return;
- let scale = this.readerMode === "double" ? 2 : 1;
- let section = Math.floor(doc.body.clientWidth / 12);
- let gap = section % 2 === 0 ? section : section - 1;
- let subIframe = doc.querySelectorAll("iframe")[0];
- let iframeHeight = subIframe === null || subIframe === void 0 ? void 0 : subIframe.getBoundingClientRect().height;
- return {
- width: doc.body.clientWidth,
- height: this.element.clientHeight,
- left: this.element.offsetLeft,
- top: this.element.offsetTop,
- scrollTop: this.element.scrollTop,
- sectionWidth: (doc.body.clientWidth - gap) / scale,
- sectionHeight: iframeHeight,
- gap: gap,
- };
- }
- goToChapter(chapterDocIndex, chapterHref, chapterTitle) {
- return __awaiter(this, void 0, void 0, function* () {
- if (this.readerMode === "double" && chapterDocIndex % 2 == 1) {
- chapterDocIndex--;
- }
- let doc = this.getDocument();
- let iframe = this.getIframe();
- if (!doc || !iframe)
- return;
- yield this.renderPdfPage(chapterDocIndex, doc);
- yield handleScrollPDFPosition(parseInt(chapterDocIndex), this.readerMode, doc);
- yield this.recordByChapter(chapterDocIndex);
- });
- }
- getPositionByChapter(chapterDocIndex) {
- return {
- percentage: chapterDocIndex / this.chapterDocList.length,
- chapterDocIndex: chapterDocIndex + "",
- chapterHref: this.chapterDocList[chapterDocIndex].href,
- chapterTitle: this.chapterDocList[chapterDocIndex].label,
- text: "",
- };
- }
- goToPercentage(percentage) {
- return __awaiter(this, void 0, void 0, function* () {
- if (this.chapterDocList.length > 0) {
- let chapterIndex = percentage === 1
- ? this.chapterDocList.length - 1
- : Math.floor(this.chapterDocList.length * percentage);
- yield this.goToChapter(chapterIndex, this.chapterDocList[chapterIndex].href, this.chapterDocList[chapterIndex].label);
- }
- });
- }
- goToPosition(bookLocationStr) {
- var _a;
- return __awaiter(this, void 0, void 0, function* () {
- let doc = this.getDocument();
- let iframe = this.getIframe();
- if (!doc || !iframe)
- return;
- let bookLocation = JSON.parse(bookLocationStr);
- if (bookLocation.chapterDocIndex === undefined) {
- bookLocation.chapterDocIndex = 0;
- }
- this.tempLocation = {
- text: bookLocation.text,
- chapterTitle: bookLocation.chapterTitle,
- chapterDocIndex: bookLocation.chapterDocIndex,
- chapterHref: bookLocation.chapterHref,
- count: bookLocation.count,
- page: bookLocation.page,
- percentage: bookLocation.percentage,
- };
- let { chapterTitle, chapterDocIndex, chapterHref } = bookLocation;
- if (this.readerMode === "double" && chapterDocIndex % 2 == 1) {
- chapterDocIndex--;
- }
- yield this.renderPdfPage(parseInt(chapterDocIndex), doc);
- if (this.readerMode === "scroll") {
- let subIframe = this.getSubIframe(chapterDocIndex !== undefined
- ? chapterDocIndex
- : parseInt(this.tempLocation.chapterDocIndex));
- if (!subIframe)
- return;
- let iframeHeight = ((_a = subIframe.parentElement) === null || _a === void 0 ? void 0 : _a.getBoundingClientRect().height) || 0;
- iframe.style.height = iframeHeight * this.chapterDocList.length + "px";
- }
- yield handleScrollPDFPosition(parseInt(chapterDocIndex), this.readerMode, doc);
- rangy.init();
- yield this.recordByChapter(parseInt(chapterDocIndex));
- });
- }
- prev(platform) {
- return __awaiter(this, void 0, void 0, function* () {
- let doc = this.getDocument();
- let iframe = this.getIframe();
- if (!doc || !iframe) {
- return;
- }
- if (this.readerMode === "scroll") {
- // scroll readerMode under normal condition
- this.element.scrollBy({
- left: 0,
- top: -(this.element.clientHeight - 50),
- behavior: "smooth",
- });
- }
- else {
- if (platform === "ios") {
- yield handleIOSScrollPage(this.element, this.animation, 1, doc, this.flipToNextPage, this.flipToPrevPage, this.isMobile, parseInt(this.tempLocation.chapterDocIndex || "0"), this.readerMode);
- }
- else {
- yield handleScrollPage(this.element, this.animation, 1, doc, this.flipToNextPage, this.flipToPrevPage, this.isMobile);
- }
- yield this.renderPdfPage(parseInt(this.tempLocation.chapterDocIndex) -
- (this.readerMode === "double" ? 2 : 1), doc);
- }
- yield this.record();
- });
- }
- next(platform) {
- return __awaiter(this, void 0, void 0, function* () {
- let doc = this.getDocument();
- let iframe = this.getIframe();
- if (!doc || !iframe) {
- return;
- }
- if (this.readerMode === "scroll") {
- // scroll readerMode under normal condition
- this.element.scrollBy({
- left: 0,
- top: this.element.clientHeight - 50,
- behavior: "smooth",
- });
- }
- else {
- // single and double readerMode under normal condition
- if (platform === "ios") {
- yield handleIOSScrollPage(this.element, this.animation, -1, doc, this.flipToNextPage, this.flipToPrevPage, this.isMobile, parseInt(this.tempLocation.chapterDocIndex || "0"), this.readerMode);
- }
- else {
- yield handleScrollPage(this.element, this.animation, -1, doc, this.flipToNextPage, this.flipToPrevPage, this.isMobile);
- }
- yield this.renderPdfPage(parseInt(this.tempLocation.chapterDocIndex) +
- (this.readerMode === "double" ? 2 : 1), doc);
- }
- yield this.record();
- });
- }
- prevChapter() {
- return __awaiter(this, void 0, void 0, function* () {
- yield this.prev();
- });
- }
- nextChapter() {
- return __awaiter(this, void 0, void 0, function* () {
- yield this.next();
- });
- }
- goToPage(targetPage) {
- return __awaiter(this, void 0, void 0, function* () {
- let chapterDocIndex = Math.floor(targetPage - 1);
- if (chapterDocIndex >= this.chapterDocList.length) {
- chapterDocIndex = this.chapterDocList.length - 1;
- }
- if (chapterDocIndex < 0) {
- chapterDocIndex = 0;
- }
- yield this.goToChapter(chapterDocIndex, this.chapterDocList[chapterDocIndex].href, this.chapterDocList[chapterDocIndex].label);
- });
- }
- visibleText() {
- return __awaiter(this, void 0, void 0, function* () {
- let doc = this.getDocument();
- if (!doc)
- return "";
- return yield getPDFVisibleText(parseInt(this.tempLocation.chapterDocIndex || "0"), this.chapterDocList, this.readerMode);
- });
- }
- audioText() {
- return __awaiter(this, void 0, void 0, function* () {
- return yield this.visibleText();
- });
- }
- chapterText() {
- return __awaiter(this, void 0, void 0, function* () {
- return (yield this.visibleText()).join(" ");
- });
- }
- record() {
- return __awaiter(this, void 0, void 0, function* () {
- if (this.animation !== "") {
- yield new Promise((r) => setTimeout(r, 1000));
- }
- let doc = this.getDocument();
- if (!doc)
- return;
- yield this.handlePDFRecord(doc);
- });
- }
- recordByChapter(chapterDocIndex) {
- return __awaiter(this, void 0, void 0, function* () {
- if (this.animation !== "") {
- yield new Promise((r) => setTimeout(r, 1000));
- }
- if (chapterDocIndex >= this.chapterDocList.length || chapterDocIndex < 0) {
- return;
- }
- this.tempLocation.chapterDocIndex = chapterDocIndex + "";
- this.tempLocation.percentage =
- chapterDocIndex / (this.chapterDocList.length - 1) + "";
- this.tempLocation.chapterHref = this.chapterDocList[chapterDocIndex].href;
- this.tempLocation.chapterTitle = this.chapterDocList[chapterDocIndex].label;
- this.tempLocation.text = "";
- this.trigger("page-changed");
- });
- }
- handlePDFRecord(doc) {
- return __awaiter(this, void 0, void 0, function* () {
- let subContainers = doc.querySelectorAll(".pdf-container");
- if (subContainers.length > 0 &&
- isPDFScrolledIntoView(this.element, subContainers[subContainers.length - 1], this.readerMode, doc)) {
- this.handleRecord(subContainers[subContainers.length - 1]);
- return;
- }
- for (let index = 0; index < subContainers.length; index++) {
- let subContainer = subContainers[index];
- if (isPDFScrolledIntoView(this.element, subContainer, this.readerMode, doc)) {
- this.handleRecord(subContainer);
- break;
- }
- }
- });
- }
- handleRecord(subContainer) {
- let id = subContainer.getAttribute("id");
- if (!id)
- return;
- let chapterDocIndex = parseInt(id.split("-").reverse()[0]);
- if (chapterDocIndex !== parseInt(this.tempLocation.chapterDocIndex)) {
- this.tempLocation.chapterDocIndex = chapterDocIndex + "";
- this.tempLocation.percentage =
- chapterDocIndex / (this.chapterDocList.length - 1) + "";
- this.tempLocation.chapterHref = this.chapterDocList[chapterDocIndex].href;
- this.tempLocation.chapterTitle =
- this.chapterDocList[chapterDocIndex].label;
- this.tempLocation.text = "";
- this.trigger("page-changed");
- }
- }
- getMetadata() {
- return __awaiter(this, void 0, void 0, function* () {
- try {
- if (!this.book) {
- yield this.parse();
- }
- let parser = new GeneralParser(this.book);
- let metadata = yield parser.getMetadata();
- return metadata;
- }
- catch (error) {
- console.error(error);
- throw error;
- }
- });
- }
- highlightAudioNode(text, style) {
- let pageIndex = parseInt(this.tempLocation.chapterDocIndex);
- let doc = this.getSubDocument(pageIndex);
- if (!doc)
- return;
- handleHighlightPDFNode(text, style, doc);
- if (this.readerMode === "double") {
- let doc = this.getSubDocument(pageIndex + 1);
- if (!doc)
- return;
- handleHighlightPDFNode(text, style, doc);
- }
- }
- highlightSearchNode(text, style) {
- let pageIndex = parseInt(this.tempLocation.chapterDocIndex);
- let doc = this.getSubDocument(pageIndex);
- if (!doc)
- return;
- handleHighlightSearchNode(text, style, doc);
- }
- getProgress() {
- return {
- totalPage: this.chapterDocList.length,
- currentPage: parseInt(this.tempLocation.chapterDocIndex || "0") + 1,
- };
- }
- getNotePosition() {
- var _a;
- return __awaiter(this, void 0, void 0, function* () {
- let doc = this.getDocument();
- if (!doc)
- return;
- let selectedElement = getSelectedElement(doc);
- if (!selectedElement)
- return;
- let ownerDoc = selectedElement.ownerDocument;
- let targetIframe = (_a = ownerDoc === null || ownerDoc === void 0 ? void 0 : ownerDoc.defaultView) === null || _a === void 0 ? void 0 : _a.frameElement;
- let id = (targetIframe === null || targetIframe === void 0 ? void 0 : targetIframe.getAttribute("id")) || "";
- let chapterDocIndex = id ? parseInt(id.split("-").reverse()[0]) : 0;
- return Object.assign(Object.assign({}, this.tempLocation), { chapterDocIndex });
- });
- }
- getSubDocument(chapterDocIndex) {
- let pageArea = document.getElementById("page-area");
- if (!pageArea)
- return null;
- let iframe = pageArea.getElementsByTagName("iframe")[0];
- if (!iframe)
- return null;
- let doc = iframe.contentDocument;
- if (!doc) {
- return null;
- }
- let subIframe = doc.getElementById("pdf-iframe-" + chapterDocIndex);
- if (!subIframe) {
- createPDFIframe(chapterDocIndex || 0, doc);
- subIframe = doc.getElementById("pdf-iframe-" + chapterDocIndex);
- }
- return subIframe.contentDocument;
- }
- getSubIframe(chapterDocIndex) {
- let pageArea = document.getElementById("page-area");
- if (!pageArea)
- return null;
- let iframe = pageArea.getElementsByTagName("iframe")[0];
- if (!iframe)
- return null;
- let doc = iframe.contentDocument;
- if (!doc) {
- return null;
- }
- iframe = doc.getElementById("pdf-iframe-" + chapterDocIndex);
- if (!iframe) {
- createPDFIframe(chapterDocIndex || 0, doc);
- iframe = doc.getElementById("pdf-iframe-" + chapterDocIndex);
- }
- return iframe;
- }
- getHightlightCoords(chapterDocIndex) {
- return __awaiter(this, void 0, void 0, function* () {
- let pageIndex = chapterDocIndex !== undefined
- ? chapterDocIndex
- : parseInt(this.tempLocation.chapterDocIndex);
- let subDoc = this.getSubDocument(chapterDocIndex);
- if (!subDoc)
- return;
- var selectionRects = subDoc.getSelection().getRangeAt(0).getClientRects();
- let page = yield this.chapterDocList[pageIndex].text.getPage();
- let scale = yield getPdfScale(this.element, this.readerMode, this.chapterDocList, pageIndex, subDoc);
- var viewport = page.getViewport({ scale: scale });
- let canvas = subDoc.querySelector("canvas");
- var pageRect = canvas === null || canvas === void 0 ? void 0 : canvas.getClientRects()[0];
- let tempRect = [];
- for (let i = 0; i < selectionRects.length; i++) {
- if (i === 0) {
- tempRect.push({
- bottom: selectionRects[i].bottom,
- top: selectionRects[i].top,
- left: selectionRects[i].left,
- right: selectionRects[i].right,
- });
- }
- else if (Math.abs(tempRect[tempRect.length - 1].bottom - selectionRects[i].bottom) < 5) {
- if (tempRect[tempRect.length - 1].left > selectionRects[i].left) {
- tempRect[tempRect.length - 1].left = selectionRects[i].left;
- }
- if (tempRect[tempRect.length - 1].right < selectionRects[i].right) {
- tempRect[tempRect.length - 1].right = selectionRects[i].right;
- }
- }
- else {
- tempRect.push({
- bottom: selectionRects[i].bottom,
- top: selectionRects[i].top,
- left: selectionRects[i].left,
- right: selectionRects[i].right,
- });
- }
- }
- var selected = tempRect.map(function (r) {
- return viewport
- .convertToPdfPoint(r.left - pageRect.x, r.top - pageRect.y)
- .concat(viewport.convertToPdfPoint(r.right - pageRect.x, r.bottom - pageRect.y));
- });
- return { page: pageIndex, coords: selected, readerMode: this.readerMode };
- });
- }
- renderHighlighters(notes, handleNoteClick) {
- var _a, _b;
- return __awaiter(this, void 0, void 0, function* () {
- if (notes.length === 0)
- return;
- let chapterIndex = notes[0].chapterIndex;
- let subIframe = this.getSubIframe(chapterIndex);
- let subDoc = this.getSubDocument(chapterIndex);
- if (!subDoc || !subIframe)
- return;
- clearHighlight(subDoc);
- let iWin = subIframe.contentWindow || ((_a = subIframe.contentDocument) === null || _a === void 0 ? void 0 : _a.defaultView);
- for (let index = 0; index < notes.length; index++) {
- const item = notes[index];
- let selected = JSON.parse(item.range);
- var pageIndex = parseInt(selected.page + "");
- if (pageIndex !== chapterIndex) {
- continue;
- }
- let page = yield this.chapterDocList[pageIndex].text.getPage();
- let scale = yield getPdfScale(this.element, this.readerMode, this.chapterDocList, pageIndex, subDoc);
- try {
- showPDFHighlight(selected, item.color, item.key, handleNoteClick, page, scale, subDoc);
- }
- catch (e) {
- console.warn(e, "Exception has been caught when restore character ranges.");
- return;
- }
- if (!iWin || !iWin.getSelection())
- return;
- (_b = iWin.getSelection()) === null || _b === void 0 ? void 0 : _b.empty();
- }
- });
- }
- removeOneNote(key, chapterDocIndex) {
- let doc = this.getSubDocument(chapterDocIndex !== undefined
- ? chapterDocIndex
- : parseInt(this.tempLocation.chapterDocIndex));
- if (!doc)
- return;
- const elements = doc.querySelectorAll(".kookit-note");
- for (let index = 0; index < elements.length; index++) {
- const element = elements[index];
- const dataKey = element.getAttribute("data-key");
- if (dataKey === key) {
- element.parentNode.removeChild(element);
- }
- }
- }
- createOneNote(item, handleNoteClick) {
- return __awaiter(this, void 0, void 0, function* () {
- let iframe = this.getSubIframe(item.chapterIndex);
- let subDoc = this.getSubDocument(item.chapterIndex);
- if (!subDoc || !iframe)
- return;
- let selected = JSON.parse(item.range);
- var pageIndex = parseInt(selected.page + "");
- let page = yield this.chapterDocList[pageIndex].text.getPage();
- let scale = yield getPdfScale(this.element, this.readerMode, this.chapterDocList, pageIndex, subDoc);
- showPDFHighlight(selected, item.color, item.key, handleNoteClick, page, scale, subDoc);
- this.clearSelection();
- });
- }
- handleRenderPDFChapter(chapterDocIndex, doc) {
- return __awaiter(this, void 0, void 0, function* () {
- if (chapterDocIndex >= this.chapterDocList.length || chapterDocIndex < 0) {
- return;
- }
- let subIframe = doc.getElementById("pdf-iframe-" + chapterDocIndex);
- if (!subIframe) {
- subIframe = createPDFIframe(chapterDocIndex, doc);
- }
- let subDoc = subIframe === null || subIframe === void 0 ? void 0 : subIframe.contentDocument;
- if (!subDoc)
- return;
- if (subDoc.body.innerHTML) {
- return;
- }
- subDoc.body.innerHTML = "";
- let blob = yield fetch(yield this.chapterDocList[chapterDocIndex].text.load()).then((r) => r.blob());
- let chapterText = yield blob.text();
- subDoc.body.innerHTML = chapterText;
- let scale = yield getPdfScale(this.element, this.readerMode, this.chapterDocList, chapterDocIndex, subDoc);
- yield this.chapterDocList[chapterDocIndex].text.render(subDoc, scale, this.isMobile);
- let docLayer = subDoc.querySelector("#koodoPDFLayer");
- if (!docLayer) {
- return;
- }
- if (this.isDarkMode === "yes") {
- docLayer.style.filter = "invert(1) hue-rotate(180deg) contrast(0.95)";
- }
- if (this.backgroundColor === "rgba(233, 216, 188,1)" &&
- this.isScannedPDF === "yes") {
- docLayer.style.filter = "sepia(100%) contrast(0.95) brightness(0.95)";
- }
- if (this.backgroundColor === "rgba(197, 231, 207,1)" &&
- this.isScannedPDF === "yes") {
- docLayer.style.filter =
- "sepia(30%) hue-rotate(60deg) saturate(120%) brightness(95%)";
- }
- if (this.readerMode === "single" || this.readerMode === "double") {
- let additionalHeight = this.element.clientHeight / 2 -
- docLayer.getBoundingClientRect().height / 2;
- docLayer.style.marginTop = additionalHeight + "px";
- subIframe.style.height =
- docLayer.getBoundingClientRect().height + additionalHeight + "px";
- let noteLayer = subDoc.querySelector(".noteLayer");
- if (noteLayer) {
- noteLayer.style.position = "relative";
- }
- }
- if (this.readerMode !== "scroll") {
- docLayer.style.marginLeft = `calc(50% - ${docLayer.getBoundingClientRect().width / 2}px)`;
- }
- docLayer.style.visibility = "visible";
- window.chapterDocIndex = chapterDocIndex;
- this.trigger("rendered");
- });
- }
- handleUnloadPDFChapter(chapterDocIndex, doc) {
- return __awaiter(this, void 0, void 0, function* () {
- if (chapterDocIndex >= this.chapterDocList.length || chapterDocIndex < 0) {
- return;
- }
- let subDoc = this.getSubDocument(chapterDocIndex);
- if (!subDoc)
- return;
- if (subDoc.body.innerHTML === "") {
- return;
- }
- yield this.chapterDocList[chapterDocIndex].text.unload();
- subDoc.body.innerHTML = "";
- });
- }
- renderPdfPage(chapterDocIndex, doc) {
- return __awaiter(this, void 0, void 0, function* () {
- if (chapterDocIndex >= this.chapterDocList.length || chapterDocIndex < 0) {
- return;
- }
- else if (chapterDocIndex > 2) {
- yield this.handleUnloadPDFChapter(chapterDocIndex - 3, doc);
- }
- yield this.handleRenderPDFChapter(chapterDocIndex, doc);
- yield this.handleRenderPDFChapter(chapterDocIndex + 1, doc);
- });
- }
-}
-
-const fetchText = (url) => __awaiter(void 0, void 0, void 0, function* () { return yield (yield fetch(url)).text(); });
-class PdfTextRender extends GeneralRender {
- constructor(pdfBuffer, config) {
- super(Object.assign(Object.assign({}, config), { format: "PDFTEXT" }));
- this.password = "";
- this.ocrLang = "chi_sim"; // 默认OCR语言为简体中文
- this.paraSpacingValue = 1.5; // 段落间距
- this.titleSizeValue = 1.2; // 标题大小倍数
- this.isFinishOCR = false;
- this.performOCR = (imageUrl) => __awaiter(this, void 0, void 0, function* () {
- try {
- if (this.ocrEngine === "tesseract") {
- const result = yield this.worker.recognize(imageUrl);
- // await this.worker.terminate();
- return result.data.text;
- }
- else if (this.ocrEngine === "system") {
- }
- }
- catch (error) {
- console.error("OCR Error:", error);
- throw error;
- }
- });
- this.pdfBuffer = pdfBuffer;
- this.password = config.password || "";
- this.isScannedPDF = config.isScannedPDF || "no";
- this.ocrLang = config.ocrLang || "chi_sim"; // 支持配置OCR语言
- this.paraSpacingValue = parseFloat(config.paraSpacingValue) || 1.5; // 支持配置段落间距
- this.titleSizeValue = parseFloat(config.titleSizeValue) || 1.2; // 支持配置标题大小倍数
- this.cache = {};
- this.serverRegion = config.serverRegion || "global";
- this.processingPromises = new Map();
- this.ocrEngine = config.ocrEngine || "tesseract"; // 支持配置OCR引擎
- }
- renderTo(element) {
- return new Promise((resolve, reject) => __awaiter(this, void 0, void 0, function* () {
- this.element = element;
- if (!this.book) {
- yield this.parse();
- }
- let parser = new GeneralParser(this.book);
- this.chapterList = yield parser.getChapter(this.book.toc);
- this.chapterDocList = yield parser.getChapterDoc();
- for (let index = 0; index < this.chapterDocList.length; index++) {
- let chapterDoc = this.chapterDocList[index];
- chapterDoc.text.load = () => __awaiter(this, void 0, void 0, function* () {
- if (this.cache[index]) {
- // 即使缓存存在，也要检查后续章节
- if (this.isScannedPDF === "yes") {
- this.preProcessNextChapters(index);
- }
- return this.cache[index];
- }
- let src = "";
- if (this.isScannedPDF === "yes") {
- // 优先处理当前章节
- src = yield this.processCurrentChapter(index);
- // 异步处理后续章节
- this.preProcessNextChapters(index);
- }
- else {
- src = yield this.getTextFromDoc(chapterDoc);
- this.cache[index] = src;
- }
- return src;
- });
- }
- createIframe(element);
- let doc = this.getDocument();
- if (!doc)
- return;
- handleLayout(element, this.readerMode, doc);
- resolve();
- }));
- }
- // 优先处理当前章节
- processCurrentChapter(index) {
- return __awaiter(this, void 0, void 0, function* () {
- if (this.cache[index]) {
- return this.cache[index];
- }
- // 如果当前章节正在处理，等待完成
- if (this.processingPromises.has(index)) {
- yield this.processingPromises.get(index);
- return this.cache[index];
- }
- const chapterDoc = this.chapterDocList[index];
- const src = yield this.getTextByOCR(chapterDoc);
- this.cache[index] = src;
- return src;
- });
- }
- // 异步预处理后续章节
- preProcessNextChapters(currentIndex) {
- const maxIndex = Math.min(currentIndex + 3, this.chapterDocList.length - 1);
- for (let i = currentIndex + 1; i <= maxIndex; i++) {
- // 只处理未缓存且未在处理中的章节
- if (!this.cache[i] && !this.processingPromises.has(i)) {
- const promise = this.processChapterOCR(i);
- this.processingPromises.set(i, promise);
- // 处理完成后清理 Promise 记录
- promise.finally(() => {
- this.processingPromises.delete(i);
- });
- }
- }
- }
- // 处理单个章节的OCR
- processChapterOCR(index) {
- return __awaiter(this, void 0, void 0, function* () {
- try {
- const chapterDoc = this.chapterDocList[index];
- const src = yield this.getTextByOCR(chapterDoc);
- this.cache[index] = src;
- }
- catch (error) {
- console.error(`Failed to process OCR for chapter ${index}:`, error);
- }
- });
- }
- getTextByOCR(chapterDoc) {
- return __awaiter(this, void 0, void 0, function* () {
- let page = yield chapterDoc.text.getPage();
- let { imageURL } = yield convertPageToImage(page);
- const textContent = yield this.performOCR(imageURL);
- let paraList = textContent.split("\n").filter((para) => para.trim() !== "");
- const src = URL.createObjectURL(new Blob([
- `
-
-
-
-
- ${paraList.map((para) => `
- `,
- ], { type: "text/html" }));
- return src;
- });
- }
- getTextFromDoc(chapterDoc) {
- return __awaiter(this, void 0, void 0, function* () {
- let textContent = yield chapterDoc.text.getTextContent();
- let paraList = [];
- if (textContent && textContent.items && Array.isArray(textContent.items)) {
- // 先收集所有字体大小，确定基础大小和最大大小
- // 先收集所有字体大小，确定基础大小和最大大小
- const fontSizes = textContent.items
- .filter((item) => item.str && item.transform)
- .map((item) => item.transform[3]);
- let baseFontSize = 10;
- if (fontSizes.length > 0) {
- // 计算字体大小的众数（出现频率最高的值）
- const fontSizeCount = fontSizes.reduce((acc, size) => {
- acc[size] = (acc[size] || 0) + 1;
- return acc;
- }, {});
- baseFontSize = Object.keys(fontSizeCount)
- .map(Number)
- .reduce((a, b) => (fontSizeCount[a] > fontSizeCount[b] ? a : b));
- }
- // const maxFontSize = Math.max(...fontSizes);
- // const fontSizeRange = maxFontSize - Number(baseFontSize);
- let currentPara = {
- text: "",
- styles: new Set(),
- y: 0,
- tag: "p",
- };
- let lastY = 0;
- textContent.items.forEach((item) => {
- if (item.str) {
- // 检测段落分隔（基于Y坐标变化）
- const yDiff = Math.abs(item.transform[5] - lastY);
- const fontSize = item.transform[3];
- // 根据字体大小确定样式，都用p标签，大字体用bold
- let tag = "p";
- let isBold = fontSize > Number(baseFontSize) * this.titleSizeValue;
- // 如果Y坐标变化较大，认为是新段落
- if (yDiff > item.height * this.paraSpacingValue &&
- currentPara.text.trim()) {
- paraList.push(currentPara);
- currentPara = {
- text: "",
- styles: new Set(),
- y: item.transform[5],
- tag: tag,
- isBold: isBold,
- };
- }
- else if (!currentPara.hasOwnProperty("isBold")) {
- // 如果当前段落还没有确定样式，使用当前item的样式
- currentPara.isBold = isBold;
- }
- // 包装文本
- const wrappedText = item.str;
- // 换行时用空格连接，而不是分段
- if (item.hasEOL) {
- // 如果是用了连接符（如连字符），直接拼接，不加空格
- if (wrappedText.endsWith("-")) {
- currentPara.text += wrappedText.slice(0, -1);
- }
- else {
- currentPara.text += wrappedText + " ";
- }
- }
- else {
- currentPara.text += wrappedText;
- }
- lastY = item.transform[5];
- }
- });
- // 添加最后一个段落
- if (currentPara.text.trim()) {
- paraList.push(currentPara);
- }
- }
- const src = URL.createObjectURL(new Blob([
- `
-
-
-
-
- ${para}
`).join("")}${paraList.length > 0
- ? paraList
- .map((para) => `
- `,
- ], { type: "text/html" }));
- return src;
- });
- }
- parse() {
- return __awaiter(this, void 0, void 0, function* () {
- try {
- let blob = new Blob([this.pdfBuffer]);
- let file = new File([blob], "book", {
- lastModified: new Date().getTime(),
- type: blob.type,
- });
- if (yield isPDF(file)) {
- this.book = yield makePDF(file, this.password);
- }
- if (this.isScannedPDF === "yes" && this.ocrEngine === "tesseract") {
- let workerScript = yield fetchText(`${isElectron$1() ? "." : ""}/lib/tesseractjs/worker.min.js`);
- let workerUrl = URL.createObjectURL(new Blob([workerScript], { type: "application/javascript" }));
- const worker = yield window.Tesseract.createWorker([this.ocrLang], 1, {
- workerPath: workerUrl,
- corePath: `https://${this.serverRegion === "global"
- ? "storage.koodoreader.com"
- : "storage.koodoreader.cn"}/tesseractjs/tesseract-core`,
- langPath: `https://${this.serverRegion === "global"
- ? "storage.koodoreader.com"
- : "storage.koodoreader.cn"}/tesseractjs/4.0.0-fast`,
- logger: (m) => {
- if (m.status === "recognizing text" &&
- typeof m.progress === "number" &&
- !this.isFinishOCR) {
- showOCRProgress(m.progress);
- if (m.progress === 1) {
- this.isFinishOCR = true;
- }
- }
- },
- });
- yield worker.load();
- this.worker = worker;
- }
- }
- catch (error) {
- console.error(error);
- throw error;
- }
- });
- }
- preCache() {
- return __awaiter(this, void 0, void 0, function* () {
- if (!this.book) {
- yield this.parse();
- }
- return yield getCache(this.book);
- });
- }
- getMetadata() {
- return __awaiter(this, void 0, void 0, function* () {
- try {
- if (!this.book) {
- yield this.parse();
- }
- let parser = new GeneralParser(this.book);
- return yield parser.getMetadata();
- }
- catch (error) {
- console.error(error);
- throw error;
- }
- });
- }
-}
-
-const makeHtmlBook = (bookStr, isTxt = false, parserRegex = "", bookLocation) => {
- const bookDoc = new DOMParser().parseFromString(isTxt ? txtToHtml(bookStr, parserRegex, bookLocation) : bookStr, "text/html");
- let chapterDomList = getTitleElement(bookDoc);
- if (chapterDomList.length === 0) {
- chapterDomList = getTitlefromText(bookDoc);
- }
- for (let i = 0; i < chapterDomList.length; i++) {
- // this.chapterDomList[i].id = this.chapterList[i].id;
- var newItem = document.createElement("kookitmarker");
- var textnode = document.createTextNode(" ");
- newItem.appendChild(textnode);
- chapterDomList[i].parentNode &&
- chapterDomList[i].parentNode.insertBefore(newItem, chapterDomList[i]);
- }
- const chapterList = getChapterDoc(bookDoc.body.innerHTML);
- const load = (index) => __awaiter(void 0, void 0, void 0, function* () {
- const page = URL.createObjectURL(new Blob([chapterList[index].text], { type: "text/html" }));
- return page;
- });
- const unload = (index) => { };
- const book = {};
- book.getCover = () => "";
- book.sections = chapterList.map((item) => ({
- id: item.index,
- load: () => load(item.index),
- unload: () => unload(item.index),
- size: chapterList[item.index].text.length,
- }));
- book.toc = chapterList
- .map((item) => ({
- label: item.label,
- href: "title" + item.index,
- }))
- .filter((item) => item.label !== "");
- book.rendition = { layout: "pre-paginated" };
- book.resolveHref = (href) => {
- return { index: parseInt(href.substring(5, href.length)) };
- };
- book.splitTOCHref = (href) => [href, null];
- book.getTOCFragment = (doc) => doc.documentElement;
- return book;
-};
-const getTitleElement = (Element) => {
- return Array.from(Element.querySelectorAll("h1,h2,h3,h4,h5,h6,title"));
-};
-const getChapterDoc = (bookStr) => {
- let chapterDocList = [];
- let chapterStrList = bookStr
- .split("${para.text.trim()}
`) - .join("") - : "Empty"}\n \n \n \n
\n `],{type:"text/html"}))},Hi=e=>({label:e.title,href:e.dest?JSON.stringify(e.dest):null,subitems:e.items.length?e.items.map(Hi):null});function ji(e="need"){return(navigator.language?.toLowerCase()||"en").startsWith("zh")?"need"===e?"请输入PDF密码：":"密码错误，请重新输入：":"need"===e?"Need password to open this PDF:":"Incorrect password, please try again:"}const Wi=async(e,t)=>{let i;for(;;){const r=new Ii.PDFDataRangeTransport(e.size,[]);r.requestDataRange=(t,i)=>{e.slice(t,i).arrayBuffer().then((e=>{r.onDataRange(t,e)}))};try{i=await Ii.getDocument({range:r,cMapUrl:Ei("cmaps/"),standardFontDataUrl:Ei("standard_fonts/"),isEvalSupported:!1,password:t}).promise;break}catch(e){if("PasswordException"!==e.name)throw e;if(e.code===Ii.PasswordResponses.NEED_PASSWORD?Ri()?(t=await Pi(ji("need"),"",""),vex.closeAll()):t=prompt(ji("need")):e.code===Ii.PasswordResponses.INCORRECT_PASSWORD&&(Ri()?(t=await Pi(ji("incorrect"),"",""),vex.closeAll()):t=prompt(ji("incorrect"))),!t)throw new Error("PDF loading failed: no password provided")}}let r=!1,n=i.numPages>0?await i.getPage(Math.floor(i.numPages/2)+1):null;if(n){const e=await n.getTextContent();if(r=0===e.items.length,e.items.length>0){r=e.items.reduce(((e,t)=>e+t.str.trim().length),0)<40}n.cleanup()}const o={rendition:{layout:"pre-paginated"}},{metadata:s,info:a}=await i.getMetadata()??{};o.metadata={title:s?.get("dc:title")??a?.Title,author:s?.get("dc:creator")??a?.Author,contributor:s?.get("dc:contributor"),description:s?.get("dc:description")??a?.Subject,language:s?.get("dc:language"),publisher:s?.get("dc:publisher"),subject:s?.get("dc:subject"),identifier:s?.get("dc:identifier"),source:s?.get("dc:source"),rights:s?.get("dc:rights")},o.metadata.description=(o.metadata.description?o.metadata.description:"")+(r?"\nscanned PDF":"")+(t?"\nprotected PDF: #"+t+"#":"");const l=await i.getOutline();o.toc=l?.map(Hi);const c=new Map;return o.sections=Array.from({length:i.numPages}).map(((e,t)=>({id:t,load:async()=>{const e=c.get(t);if(e)return e;const r=await Fi(await i.getPage(t+1));return c.set(t,r),r},unload:async()=>{(await i.getPage(t+1)).cleanup()},render:async(e,r,n,o)=>{await(async(e,t,i,r,n,o)=>{let s=window.devicePixelRatio*("yes"===n?1/r*1.5:1);const a=r*s;let l=i.querySelector("#koodoPDFLayer");l.style.visibility="hidden",l.style.transform=`scale(${1/s})`,l.style.transformOrigin="top left",l.style.setProperty("--scale-factor",a);const c=e.getViewport({scale:a}),h=document.createElement("canvas");l.style.width=`${c.width}px`,l.style.height=`${c.height}px`,h.height=c.height,h.width=c.width;const d=h.getContext("2d");await e.render({canvasContext:d,viewport:c,background:"rgba(0,0,0,0)"}).promise,i.querySelector("#canvas").replaceChildren(i.adoptNode(h)),l.style.overflow="hidden";const u=i.querySelector("#textLayer"),f=new Ii.TextLayer({textContentSource:await e.streamTextContent(),container:u,viewport:c});await f.render();for(const e of document.querySelectorAll(".hiddenCanvasElement"))Object.assign(e.style,{position:"absolute",top:"0",left:"0",width:"0",height:"0",display:"none"});const p=document.createElement("div");p.className="endOfContent",u.append(p);let g=!1,m=null;u.onpointerdown=()=>{let e=i?.defaultView;if(e.getSelection().toString().trim().length>0)return u.classList.remove("selecting"),g=!1,p.remove(),void u.append(p);u.classList.add("selecting"),g=!0},"yes"!==n?(u.onpointerup=()=>{u.classList.remove("selecting"),g=!1,p.remove(),u.append(p)},u.onpointermove=e=>{if(!g)return;let t=e.target.closest(".textLayer > span");const i=null!==t;u.style.cursor=i?"text":"default",i&&(m=t),p.remove(),u.insertBefore(p,m)}):i.addEventListener("selectionchange",(e=>{if(!g)return;let t=i?.defaultView;var r=t.getSelection().getRangeAt(0).endContainer;let n=r.nodeType===Node.TEXT_NODE?r.parentNode:r;n=n.closest(".textLayer > span");const o=null!==n;u.style.cursor=o?"text":"default",o&&(m=n),p.remove(),u.insertBefore(p,m.nextSibling?m.nextSibling:m)}));const y=i.querySelector("#annotationLayer");try{await new Ii.AnnotationLayer({page:e,viewport:c,div:y}).render({annotations:await e.getAnnotations(),linkService:{goToDestination:async e=>{try{const i="string"==typeof e?await t.getDestination(e):e;if(!i||!Array.isArray(i)||0===i.length)return void console.warn("Invalid destination:",e);const r=await t.getPageIndex(i[0]);o.goToChapterDocIndex(r)}catch(e){console.error("Error navigating to destination:",e)}},getDestinationHash:e=>JSON.stringify(e),addLinkAttributes:(e,t)=>e.href=t}})}catch(e){console.error(e)}})(await i.getPage(t+1),i,e,r,n,o)},getTextContent:async()=>{const e=await i.getPage(t+1);return await e.getTextContent()},size:1e3,getDimension:async()=>{let e=(await i.getPage(t+1)).getViewport({scale:1});return{width:e.width,height:e.height}},getPage:async()=>await i.getPage(t+1)}))),o.isExternal=e=>/^\w+:/i.test(e),o.resolveHref=async e=>{const t=JSON.parse(e),r="string"==typeof t?await i.getDestination(t):t;return{index:await i.getPageIndex(r[0])}},o.splitTOCHref=async e=>{const t=JSON.parse(e),r="string"==typeof t?await i.getDestination(t):t;return[await i.getPageIndex(r[0]),null]},o.getTOCFragment=e=>e.documentElement,o.getCover=async()=>Fi(await i.getPage(1),!0),o.destroy=()=>i.destroy(),o},$i=async e=>{const t=new Uint8Array(await e.slice(0,5).arrayBuffer());return 37===t[0]&&80===t[1]&&68===t[2]&&70===t[3]&&45===t[4]};class Ui extends Ot{constructor(e,t){super(Object.assign(Object.assign({},t),{convertChinese:"Default",format:"PDF"})),this.isStartFromEven="no",this.password="",this.scale=1,this.pdfBuffer=e,this.isStartFromEven=t.isStartFromEven||"no",this.password=t.password||"",this.scale=t.scale||1,this.backgroundColor=t.backgroundColor||"#ffffff",this.isScannedPDF=t.isScannedPDF||"no",this.platform=t.platform||"web"}renderTo(e){return new Promise(((t,i)=>c(this,void 0,void 0,(function*(){this.element=e,this.book||(yield this.parse());let i=new T(this.book);this.chapterList=yield i.getChapter(this.book.toc),this.chapterDocList=yield i.getChapterDoc(),console.log(this.chapterDocList,this.chapterList),"yes"===this.isStartFromEven&&(this.chapterDocList=[{label:"",text:{load:()=>c(this,void 0,void 0,(function*(){return""})),render:()=>c(this,void 0,void 0,(function*(){})),unload:()=>c(this,void 0,void 0,(function*(){})),getPage:()=>c(this,void 0,void 0,(function*(){return null})),getDimension:()=>c(this,void 0,void 0,(function*(){return{width:0,height:0}})),getScale:()=>c(this,void 0,void 0,(function*(){return 1})),getPageCount:()=>c(this,void 0,void 0,(function*(){return 0}))},href:""},...this.chapterDocList]),document.body.clientWidth*Math.abs(this.scale)-.4*document.body.clientWidth>document.body.clientWidth&&"double"!==this.readerMode?g(e,this.scale):g(e);const r=yield 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