教材预览页面添加了PDF按钮，可免登录查看或下载电子课本
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// ==UserScript==
// @name 国家中小学智慧教育平台教材PDF链接工具
// @namespace http://tampermonkey.net
// @version 1.2.1
// @description 教材预览页面添加了PDF按钮，可免登录查看或下载电子课本
// @match *://basic.smartedu.cn/*
// @match *://www.zxx.edu.cn/*
// @grant none
// ==/UserScript==
(function() {
'use strict';
const pattern = /contentId=([a-zA-Z0-9_-]+)/; // 匹配 contentId 的正则表达式
const contentId = window.location.href.match(pattern)[1]; // 获取 contentId 的数值
let link = `https://r3-ndr.ykt.cbern.com.cn/edu_product/esp/assets_document/${contentId}.pkg/pdf.pdf`;
// window.location.href = link; // 直接重定向到该网址，经测试可用
const maxTimeToCheck = 5000; // 最多检查 5000 毫秒，即 5 秒
let elapsedTime = 0;
function checkConfirmButtons() {
const confirmBtns = document.querySelector(".fish-modal-confirm-btns");
if (confirmBtns) {
// 去除阻碍
document.querySelector("body > div:nth-of-type(2)").remove(); // 去除遮罩
const body = document.querySelector("html > body"); // 去除 body 属性
body.removeAttribute("class");
body.removeAttribute("style");
// 添加阅读器
const name = document.querySelector("#main-content > div.content > div.web-breadcrumb > div > span:nth-child(3) > span.fish-breadcrumb-link")?.textContent;
const indexModuleWrapperECeCo = document.querySelector(".index-module_wrapper_ECeCo");
if (indexModuleWrapperECeCo) {
indexModuleWrapperECeCo.innerHTML = `
<div class="index-module_wrapper_ECeCo">
<div class="index-module_header_tG-zz">
<h3 class="index-module_title_bnE9V">${name}</h3>
<div class="index-module_info_evO1d">
<span class="index-module_origin_nuihE">
<svg class="index-module_icon_dwVZ4">
<use xlink:href="#icon_hotel_fill">
</use>
</svg>
<span class="index-module_department_ewVZW">智慧中小学</span>
</span>
<div class="index-module_assesment-detail_jhGLz">
<div class="index-module_assessment-content_06v6Z">
<div class="fish-dropdown-trigger index-module_assessment-rate_euPTQ">
<ul class="fish-rate fish-rate-disabled" tabindex="-1" role="radiogroup">
<li class="fish-rate-star fish-rate-star-full">
<div role="radio" aria-checked="true" aria-posinset="1" aria-setsize="5" tabindex="-1">
<div class="fish-rate-star-first">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
<div class="fish-rate-star-second">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
</div>
</li>
<li class="fish-rate-star fish-rate-star-full">
<div role="radio" aria-checked="true" aria-posinset="2" aria-setsize="5" tabindex="-1">
<div class="fish-rate-star-first">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
<div class="fish-rate-star-second">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
</div>
</li>
<li class="fish-rate-star fish-rate-star-full">
<div role="radio" aria-checked="true" aria-posinset="3" aria-setsize="5" tabindex="-1">
<div class="fish-rate-star-first">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
<div class="fish-rate-star-second">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
</div>
</li>
<li class="fish-rate-star fish-rate-star-full">
<div role="radio" aria-checked="true" aria-posinset="4" aria-setsize="5" tabindex="-1">
<div class="fish-rate-star-first">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
<div class="fish-rate-star-second">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
</div>
</li>
<li class="fish-rate-star fish-rate-star-zero">
<div role="radio" aria-checked="true" aria-posinset="5" aria-setsize="5" tabindex="-1">
<div class="fish-rate-star-first">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
<div class="fish-rate-star-second">
<div class="custom-star-wrap" style="width: 100%;">
<div class="custom-star">
</div>
</div>
</div>
</div>
</li>
</ul>
<span class="index-module_text_rukZW">5.0分</span>
</div>
</div>
<span class="fish-dropdown-trigger index-module_assessment-btn_6imdF ">
<button type="button" class="fish-btn fish-btn-round">
<svg class="index-module_rate-icon_YM1Lc">
<use xlink:href="#icon_evaluate_fill">
</use>
</svg>
<span class="index-module_assessment-btn-text_fw-+Z">评价</span>
</button>
</span>
</div>
<div class="index-module_extra_tUQog">
<div class="index-module_like-wrap_NbyLe ">
<svg class="index-module_like_qOb9K">
<use xlink:href="#icon_thumb_fill">
</use>
</svg>
<div class="index-module_like-count_GXOGd">100w+点赞</div>
</div>
<div class="index-module_suggestion-wrap_s+Ii+ ">
<svg class="index-module_suggestion-icon_IrRxU">
<use xlink:href="#icon_feedback_fill">
</use>
</svg>
<div>建议</div>
</div>
</div>
</div>
</div>
<div class="index-module_divider_rI-lg">
</div>
<div class="imageList-module_special-edu-image-list-wrapper_18zfs">
<div class="imageList-module_special-edu-image-list_+ywag">
<div class="course-document">
<div class="document-context">
<embed src="${link}" width="100%" height="100%">
</div>
<div class="doc-toolbar">
<div class="left">
</div>
<div class="center">
</div>
<div class="right">
<div class="split-line">
</div>
<div class="tool-btn fullscreen" title="全屏">
</div>
</div>
</div>
</div>
</div>
</div>
</div>
`;
}
// 全屏切换
const fullscreenBtn = document.querySelector(".tool-btn.fullscreen");
const courseDocument = document.querySelector(".course-document");
const htmlElement = document.querySelector("html");
fullscreenBtn.addEventListener("click", () => {
if (courseDocument.classList.contains("full-screen")) { // 当前处于"全屏状态"，切换为"非全屏状态"
courseDocument.classList.remove("full-screen");
htmlElement.style.overflow = "";
} else { // 当前处于"非全屏状态"，切换为"全屏状态"
courseDocument.classList.add("full-screen");
htmlElement.style.overflow = "hidden";
}
});
// 重定向至登录页
const toLogin = [
document.querySelector("#main-content > div.content > div.index-module_special-edu-detail_aH1Nr > div > div > div > div.index-module_header_tG-zz > div > div.index-module_assesment-detail_jhGLz > span"),
document.querySelector("#main-content > div.content > div.index-module_special-edu-detail_aH1Nr > div > div > div > div.index-module_header_tG-zz > div > div.index-module_extra_tUQog > div.index-module_like-wrap_NbyLe"),
document.querySelector("#main-content > div.content > div.index-module_special-edu-detail_aH1Nr > div > div > div > div.index-module_header_tG-zz > div > div.index-module_extra_tUQog > div.index-module_suggestion-wrap_s\\+Ii\\+")
];
toLogin.forEach(element => {
element.addEventListener("click", () => {
window.open("https://auth.smartedu.cn/uias/login/");
});
});
clearInterval(intervalId1); // 清除定时器
} else {
elapsedTime += 100;
if (elapsedTime >= maxTimeToCheck) {
clearInterval(intervalId1); // 清除定时器，停止检查
}
}
}
const intervalId1 = setInterval(checkConfirmButtons, 100); // 每隔 100 毫秒检查一次 fish-modal-confirm-btns 元素是否存在
function checkIndexModule() {
const container = document.querySelector(".index-module_extra_tUQog"); // 找到要添加按钮的容器元素
if (container) {
const a = document.createElement("a");
a.innerHTML = "📓 查看PDF"; // 文本内容
a.display = "flex"; // 弹性容器布局
a.style.alignItems = "center"; // 居中对齐
a.style.marginLeft = "24px"; // 左边距（"点赞数"左右边距各 10，"建议"左边距 14，故按钮间距为 24）
a.style.fontSize = "14px"; // 字体大小
a.style.cursor = "pointer"; // 指针变手型
a.style.color = "#888"; // 文本颜色
a.href = link; // 链接
// a.target = "_blank"; // 新标签页打开
container.appendChild(a); // 将按钮添加到网页中
a.addEventListener("mouseover", function() {
this.innerHTML = "📘 查看PDF";
this.style.color = "#226dec"; // 鼠标移入时修改元素的样式
});
a.addEventListener("mouseout", function() {
this.innerHTML = "📓 查看PDF";
this.style.color = "#888"; // 鼠标移出时恢复原来的样式
});
a.addEventListener("mousedown", function() {
this.innerHTML = "📕 查看PDF";
this.style.color = "#e82020"; // 鼠标按下时修改元素的样式
});
// a.addEventListener("mouseup", function() {
// this.innerHTML = "📓 查看PDF";
// this.style.color = "#888"; // 鼠标抬起时修改元素的样式
// });
clearInterval(intervalId2); // 清除定时器
} else {
elapsedTime += 100;
if (elapsedTime >= maxTimeToCheck) {
clearInterval(intervalId2); // 清除定时器，停止检查
}
}
}
const intervalId2 = setInterval(checkIndexModule, 100); // 每隔 100 毫秒检查一次 index-module_extra_tUQog 元素是否存在
if (window.location.href.startsWith("https://basic.smartedu.cn/schoolService/")) {
const originalFetch = window.fetch;
window.fetch = function (url, options) {
if (url.endsWith(".pdf")) {
// window.location.href = url;
const a = document.querySelector(".index-module_extra_tUQog > a"); // 按钮
a && (a.href = url); // 修改按钮链接
}
return originalFetch(url, options);
};
}
})();