ctrl+s保存ppt，ctrl+d查看ppt
// ==UserScript==
// @name 超星学习通章节内ppt下载
// @namespace http://tampermonkey.net/
// @version 1.0
// @description ctrl+s保存ppt，ctrl+d查看ppt
// @author white
// @match https://mooc1.chaoxing.com/mycourse/*
// @icon data:image/png;base64,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
// @grant none
// @license MIT
// ==/UserScript==
(function () {
"use strict";
function getPdfInfo() {
try {
var objectId = document
.getElementsByTagName("iframe")[0]
.contentDocument.body.getElementsByClassName("ans-attach-ct")[0]
.getElementsByTagName("iframe")[0]
.getAttribute("objectid");
} catch (e) {
window.alert("获取objectId失败！");
throw new Error("获取objectId失败！");
}
var url = `https://mooc1.chaoxing.com/ananas/status/${objectId}?flag=normal&_dc=${Date.now()}`;
var xhr = new XMLHttpRequest();
xhr.open("GET", url, false);
xhr.send();
var data = JSON.parse(xhr.responseText);
return {
pdfUrl: data.pdf,
fileName: (data.filename += ".pdf"),
};
}
function createStyle() {
var styleElement = document.createElement("style");
styleElement.type = "text/css";
var cssRules = `
#__w_progressBarWrp {
width: 100%;
background-color: #f3f3f3;
height: 30px;
text-align: center;
line-height: 30px;
color: white;
}
#__w_progressBar{
background-color: #4caf50;
}
/* 弹窗样式 */
#__w_myModal {
display: none;
position: fixed;
z-index: 99999;
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
background-color: rgba(0, 0, 0, 0.4);
}
#__w_modal-content {
background-color: #fefefe;
margin: 15% auto;
padding: 20px;
border: 1px solid #888;
width: 300px;
text-align: center;
position: relative;
}
/* 关闭按钮样式 */
#__w_close {
color: #aaa;
position: absolute;
top: 0;
right: 15px;
font-size: 28px;
font-weight: bold;
cursor: pointer;
}
#__w_close:hover,
#__w_close:focus {
color: black;
text-decoration: none;
}
#__w_fileName {
width: 200px;
/*超出隐藏*/
overflow: hidden;
/*超出不换行*/
white-space: nowrap;
/*超出使用...*/
text-overflow: ellipsis;
}
#__w_boardPreview{
z-index: 9999;
position: fixed;
top: 50px;
right: 100px;
display: flex;
flex-direction: column;
}`;
styleElement.appendChild(document.createTextNode(cssRules));
document.head.appendChild(styleElement);
}
function createProgressDiv() {
const divContent = `
<div id="__w_modal-content">
<span id="__w_close">×</span>
<p id="__w_fileName"></p>
<div id="__w_progressBarWrp">
<div id="__w_progressBar"></div>
</div>
</div>`;
const newDiv = document.createElement("div");
// 设置div的内容
newDiv.innerHTML = divContent;
newDiv.id = "__w_myModal";
// 将div添加到body中
document.body.appendChild(newDiv);
}
function createBtnDiv() {
const divContent = `
<button id="__w_downloadPdf">下载课件</button>
<button id="__w_previewDdf">预览课件</button>
`;
const newDiv = document.createElement("div");
// 设置div的内容
newDiv.innerHTML = divContent;
newDiv.id = "__w_boardPreview"
// 将div添加到body中
document.body.appendChild(newDiv);
}
function previewPdf() {
const data = getPdfInfo();
window.open(data.pdfUrl, "_blank");
}
function downlodePdf() {
const data = getPdfInfo();
showText(data.fileName + "下载中...");
modal.style.display = "block";
xhr = new XMLHttpRequest();
xhr.open("GET", data.pdfUrl, true);
xhr.responseType = "blob";
// 监听响应进度
xhr.addEventListener("progress", function (event) {
if (event.lengthComputable) {
const percentComplete = (event.loaded / event.total) * 100;
progressBar.style.width = percentComplete + "%";
progressBar.textContent = Math.round(percentComplete) + "%";
}
});
// 监听请求响应
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
// 获取响应的blob对象
var blob = xhr.response;
// 创建下载链接
var downloadUrl = window.URL.createObjectURL(blob);
var a = document.createElement("a");
a.href = downloadUrl;
a.download = data.fileName;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
// 释放URL对象
window.URL.revokeObjectURL(downloadUrl);
closeSuccess()
} else {
const text = "下载失败:" + xhr.statusText;
console.error("下载失败:", xhr.statusText);
showText(text);
}
}
};
xhr.onerror = function () {
console.error("请求出错");
showText("请求出错");
closeSuccess();
};
xhr.send();
}
createStyle();
createProgressDiv();
createBtnDiv();
const modal = document.getElementById("__w_myModal");
document.getElementById("__w_close").onclick = function () {
if (xhr && xhr.readyState !== XMLHttpRequest.DONE) {
xhr.abort();
}
closeSuccess();
};
const progressBar = document.getElementById("__w_progressBar");
const fileNameP = document.getElementById("__w_fileName");
document.getElementById("__w_downloadPdf").onclick = downlodePdf;
document.getElementById("__w_previewDdf").onclick = previewPdf;
let xhr;
function closeSuccess() {
progressBar.style.width = 0;
progressBar.textContent = "";
modal.style.display = "none";
}
function showText(msg) {
msg = msg ? msg : "文件下载中...";
fileNameP.innerHTML = msg;
}
document.addEventListener("keydown", function (event) {
if (event.ctrlKey && event.key === "d") {
event.preventDefault();
previewPdf()
} else if (event.ctrlKey && event.key === "s") {
event.preventDefault();
downlodePdf()
}
});
})();