170 lines
3.7 KiB
HTML
170 lines
3.7 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport"
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content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=4.0, user-scalable=no">
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<title>安卓PDF阅读页面</title>
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<style>
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* {
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margin: 0;
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padding: 0;
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}
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canvas {
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width: 100%;
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height: 100%;
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border: 1px solid rgb(221, 221, 221);
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}
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/* 加载中的转圈圈样式 */
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.spinner-box {
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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position: absolute;
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top: 0;
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right: 0;
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bottom: 0;
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left: 0;
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z-index: 2;
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background-color: rgba(0, 0, 0, 0.3);
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}
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.spinner-box img {
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width: 9.3333vw;
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height: 9.3333vw;
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}
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.spinner-box .title {
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margin: 2.6667vw 0 0;
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font-size: 3.2vw;
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color: #fff;
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text-shadow: 0px 0px 2px rgba(0, 0, 0, 0.5);
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white-space: pre-line;
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text-align: center;
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}
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.spinner-box .spinner {
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width: 9.3333vw;
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height: 9.3333vw;
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animation: rotator 1.4s linear infinite;
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}
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@keyframes rotator {
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0% {
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transform: rotate(0deg);
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}
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100% {
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transform: rotate(270deg);
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}
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}
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.spinner-box .path {
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stroke-dasharray: 187;
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stroke-dashoffset: 0;
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transform-origin: center;
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animation: dash 1.4s ease-in-out infinite, colors 5.6s ease-in-out infinite;
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}
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@keyframes colors {
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0% {
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stroke: #fff;
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}
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25% {
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stroke: #f7e7d7;
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}
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50% {
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stroke: #eecfaf;
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}
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75% {
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stroke: #e5b788;
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}
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100% {
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stroke: #dd9f60;
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}
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}
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@keyframes dash {
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0% {
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stroke-dashoffset: 187;
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}
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50% {
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stroke-dashoffset: 46.75;
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transform: rotate(135deg);
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}
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100% {
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stroke-dashoffset: 187;
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transform: rotate(450deg);
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}
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}
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</style>
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</head>
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<script src="https://unpkg.com/pdfjs-dist@1.9.426/build/pdf.min.js"></script>
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<body>
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<div id="loading" class="spinner-box">
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<!-- 上传中 -->
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<svg class="spinner" viewBox="0 0 66 66" xmlns="http://www.w3.org/2000/svg">
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<circle class="path" fill="none" stroke-width="6" stroke-linecap="round" cx="33" cy="33" r="30"></circle>
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</svg>
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</div>
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<script>
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// 获取页面参数
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// 测试：?pdf=https://raw.githubusercontent.com/mozilla/pdf.js/ba2edeae/web/compressed.tracemonkey-pldi-09.pdf
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let url = new URLSearchParams(window.location.search).get("pdf");
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let pdfDoc = null;
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function createPage() {
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let div = document.createElement("canvas");
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document.body.appendChild(div);
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return div;
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}
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function renderPage(num) {
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pdfDoc.getPage(num).then(function (page) {
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let viewport = page.getViewport(2.0);
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let canvas = createPage();
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let ctx = canvas.getContext('2d');
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canvas.height = viewport.height;
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canvas.width = viewport.width;
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page.render({
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canvasContext: ctx,
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viewport: viewport
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});
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});
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}
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let loading = document.getElementById("loading")
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// 显示加载中
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loading.style.display = "flex";
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// 如果是由后端的pdf链接地址，且跨域需要携带cookie验证，getDocument中传{ url: url, withCredentials: true }
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PDFJS.getDocument({ url: url }).then(function (pdf) {
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pdfDoc = pdf;
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for (let i = 1; i <= pdfDoc.numPages; i++) {
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renderPage(i)
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}
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// 隐藏加载中
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loading.style.display = "none";
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})
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</script>
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</body>
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</html>
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