2021-09-26 13:00:26 +00:00
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport"
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content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no">
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<title>EPUB</title>
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<script src="https://cdn.bootcdn.net/ajax/libs/jszip/3.1.5/jszip.min.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/epubjs@0.3.88/dist/epub.min.js"></script>
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<script>
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document.addEventListener('DOMContentLoaded', () => {
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const html = document.querySelector('html')
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let fontSize = window.innerWidth / 10
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fontSize = fontSize > 50 ? 50 : fontSize
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html.style.fontSize = fontSize + 'px'
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})
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</script>
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<style>
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* {
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padding: 0;
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margin: 0;
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}
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.mask {
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position: absolute;
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display: flex;
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left: 0;
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width: 100%;
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height: 100%;
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flex-direction: column;
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}
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.meun {
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display: flex;
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height: 1em;
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align-items: center;
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}
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#toc {
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flex: 1;
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z-index: 100;
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font-size: 0.6em;
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padding-left: 0.7em;
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color: #333;
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}
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#toc-content {
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position: absolute;
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bottom: 0;
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right: 0;
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z-index: 102;
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width: auto;
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height: 100%;
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background: white;
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}
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#toc-mask {
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position: absolute;
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top: 0;
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left: 0;
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z-index: 101;
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width: 100%;
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height: 100%;
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background: rgba(51, 51, 51, .8);
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}
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#content {
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width: 100%;
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height: 100%;
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overflow: auto;
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}
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.item {
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padding: 0.4em 0.4em;
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border-bottom: 0.1em solid #f4f4f4;
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font-size: 0.4em;
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color: #333;
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}
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#open {
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flex: 1;
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z-index: 100;
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font-size: 0.4em;
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text-align: right;
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padding-right: 1em;
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color: #333;
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}
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.read {
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display: flex;
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flex: 1 1 auto;
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}
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#prev {
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flex: 0 0 2em;
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z-index: 100;
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}
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#viewer {
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flex: 1;
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}
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#next {
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flex: 0 0 2em;
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z-index: 100;
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}
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</style>
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</head>
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<body>
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<div id="ebook">
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<div class="mask">
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<div class="read">
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<div id="prev" onclick="rendition.prev()"></div>
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<div id="viewer"></div>
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<div id="next" onclick="rendition.next()"></div>
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</div>
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<div class="meun">
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<div id="toc" onclick="showhide()">≡</div>
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<div id="open">
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<span onclick="document.getElementById('input').click()">⊕</span>
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<input type="file" id="input" style="display: none;">
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</div>
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</div>
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<div id="toc-mask" style="display: none;" onclick="showhide()"></div>
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<div id="toc-content" style="display: none;">
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<div id="content"></div>
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</div>
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</div>
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</div>
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<script>
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let url = location.search.substring(3);
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if (url !== "") {
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var book = ePub(url);
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} else {
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var book = ePub();
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var inputElement = document.getElementById("input");
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inputElement.addEventListener('change', function (e) {
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var file = e.target.files[0];
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if (window.FileReader) {
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var reader = new FileReader();
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reader.onload = openBook;
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reader.readAsArrayBuffer(file);
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}
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});
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function openBook(e) {
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var bookData = e.target.result;
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book.open(bookData, "binary");
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}
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}
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//渲染
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var rendition = book.renderTo("ebook", {
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with: window.innerWidth,
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height: window.innerHeight - 20
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});
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rendition.display();
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var displayed = rendition.display();
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function showhide() {
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var $toc = document.getElementById("toc-content")
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var $mask = document.getElementById("toc-mask")
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if ($toc.style.display == "none") {
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$toc.style.display = ""
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$mask.style.display = ""
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} else {
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$toc.style.display = "none"
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$mask.style.display = "none"
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}
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}
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// 目录
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book.loaded.navigation.then(function (toc) {
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var $content = document.getElementById("content")
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toc.forEach(function (chapter) {
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var div = document.createElement("div");
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div.className = "item";
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div.textContent = chapter.label;
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div.addEventListener("click", function () {
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rendition.display(chapter.href);
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showhide()
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});
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$content.appendChild(div)
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})
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})
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</script>
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</body>
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</html>
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