159 lines
4.6 KiB
Java
159 lines
4.6 KiB
Java
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>${file.name}文件预览</title>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, user-scalable=yes, initial-scale=1.0">
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<#include "*/commonHeader.ftl">
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<script src="js/base64.min.js" type="text/javascript"></script>
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<script src="js/jszip.min.js"></script>
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<script src="epub/epub.js"></script>
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<link rel="stylesheet" type="text/css" href="epub/examples.css">
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</head>
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<#if currentUrl?contains("http://") || currentUrl?contains("https://") || currentUrl?contains("file://")>
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<#assign finalUrl="${currentUrl}">
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<#elseif currentUrl?contains("ftp://") >
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<#assign finalUrl="${currentUrl}">
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<#else>
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<#assign finalUrl="${baseUrl}${currentUrl}">
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</#if>
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<body>
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<select id="toc"></select>
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<div id="viewer" class="scrolled"></div>
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<div id="prev" class="arrow">‹</div>
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<div id="next" class="arrow">›</div>
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</body>
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<script type="text/javascript">
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var url = '${finalUrl}';
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var baseUrl = '${baseUrl}'.endsWith('/') ? '${baseUrl}' : '${baseUrl}' + '/';
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if (!url.startsWith(baseUrl)) {
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url = baseUrl + 'getCorsFile?urlPath=' + encodeURIComponent(Base64.encode(url));
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}
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function blobToArrayBuffer(blob) {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onerror = reject;
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reader.onload = () => {
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resolve(reader.result);
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};
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reader.readAsArrayBuffer(blob);
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});
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}
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let xhr = new XMLHttpRequest();
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xhr.open('GET',url); //文件所在地址
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xhr.responseType = 'blob';
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xhr.onload = () => {
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var currentSectionIndex = 100;
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var book = ePub();
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let content = xhr.response;
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let blob = new Blob([content]);
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var bookData = blobToArrayBuffer(blob);
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book.open(bookData, "binary");
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var rendition = book.renderTo("viewer", {
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flow: "scrolled-doc",
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width: "100%",
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allowScriptedContent: true
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// height: 600
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});
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var displayed = rendition.display();
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var params = URLSearchParams && new URLSearchParams(document.location.search.substring(1));
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var currentSectionIndex = (params && params.get("loc")) ? params.get("loc") : undefined;
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rendition.display(currentSectionIndex);
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var next = document.getElementById("next");
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next.addEventListener("click", function(e){
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rendition.next();
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e.preventDefault();
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}, false);
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var prev = document.getElementById("prev");
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prev.addEventListener("click", function(e){
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rendition.prev();
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e.preventDefault();
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}, false);
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rendition.on("rendered", function(section){
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var nextSection = section.next();
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var prevSection = section.prev();
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if(nextSection) {
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nextNav = book.navigation.get(nextSection.href);
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if(nextNav) {
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nextLabel = nextNav.label;
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} else {
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nextLabel = "next";
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}
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next.textContent = " »";
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} else {
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next.textContent = "";
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}
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if(prevSection) {
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prevNav = book.navigation.get(prevSection.href);
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if(prevNav) {
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prevLabel = prevNav.label;
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} else {
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prevLabel = "previous";
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}
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prev.textContent = "« " ;
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} else {
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prev.textContent = "";
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}
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});
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rendition.on("rendered", function(section){
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var current = book.navigation && book.navigation.get(section.href);
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if (current) {
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var $select = document.getElementById("toc");
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var $selected = $select.querySelector("option[selected]");
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if ($selected) {
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$selected.removeAttribute("selected");
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}
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var $options = $select.querySelectorAll("option");
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for (var i = 0; i < $options.length; ++i) {
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let selected = $options[i].getAttribute("ref") === current.href;
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if (selected) {
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$options[i].setAttribute("selected", "");
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}
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}
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}
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});
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book.loaded.navigation.then(function(toc){
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var $select = document.getElementById("toc"),
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docfrag = document.createDocumentFragment();
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toc.forEach(function(chapter) {
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var option = document.createElement("option");
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option.textContent = chapter.label;
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option.setAttribute("ref", chapter.href);
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docfrag.appendChild(option);
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});
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$select.appendChild(docfrag);
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$select.onchange = function(){
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var index = $select.selectedIndex,
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url = $select.options[index].getAttribute("ref");
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rendition.display(url);
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return false;
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};
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});
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}
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xhr.send();
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/*初始化水印*/
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if (!!window.ActiveXObject || "ActiveXObject" in window)
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{
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}else{
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initWaterMark();
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}
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</script>
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</html> |