悬浮窗显示选择题、填空题、判断题、连线题答案，口语参考文本，支持单元测试
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// ==UserScript==
// @name WELearn英语网课答案显示
// @namespace http://tampermonkey.net/
// @version 0.4
// @description 悬浮窗显示选择题、填空题、判断题、连线题答案，口语参考文本，支持单元测试
// @author SSmJaE
// @match https://course.sflep.com/*
// @match https://centercourseware.sflep.com/*
// @match https://welearn.sflep.com/*
// @grant GM_xmlhttpRequest
// @connect *
// @license MIT
// ==/UserScript==
(function () {
'use strict';
var container, title, bufferUrl;
var parser = new DOMParser();
const MANIFEST = [
'new%20century%20college%20english%20secedition%20integration%201',
'new%20century%20college%20english%20secedition%20integration%202',
'new%20century%20college%20english%20secedition%20integration%203',
'new%20century%20college%20english%20secedition%20integration%204',
'an%20integrated%20skills%20course%20(2nd%20edition)%201%20for%20vocational%20college%20english',
'an%20integrated%20skills%20course%20(2nd%20edition)%202%20for%20vocational%20college%20english',
'an%20integrated%20skills%20course%20(2nd%20edition)%203%20for%20vocational%20college%20english',
'an%20integrated%20skills%20course%20(2nd%20edition)%204%20for%20vocational%20college%20english',
'an%20integrated%20skills%20course%201',
'an%20integrated%20skills%20course%202',
];
const ORIGIN = [
'new%20target%20college%20english%20integrated%20course%201',
'new%20target%20college%20english%20integrated%20course%202',
'new%20target%20college%20english%20integrated%20course%203',
'new%20target%20college%20english%20integrated%20course%204',
'new%20progressive%20college%20english%20integrated%20course%201',
'new%20progressive%20college%20english%20integrated%20course%202',
'new%20progressive%20college%20english%20integrated%20course%203',
'new%20progressive%20college%20english%20integrated%20course%204',
]
function createContainer() {
container = document.createElement('div');
container.id = 'container';
container.setAttribute('style', "top: 100px; left: 100px; margin: 0 auto; z-index: 99; border-radius: 8px;" +
" box-shadow: 0 11px 15px -7px rgba(0,0,0,.2), 0 24px 38px 3px rgba(0,0,0,.14), 0 9px 46px 8px rgba(0,0,0,.12);" +
" position: absolute; background: #fff; min-width: 150px;max-width:400px; max-height: 500px; min-height: 100px;overflow:auto;")
container.style.visibility = 'hidden';
if (!top.document.querySelector('#container')) {
top.document.body.appendChild(container);
}
title = document.createElement('div');
title.textContent = '参考答案';
title.setAttribute("style", "background: inherit; height: 25px; margin-top: 10px; text-align: center; font-size: x-large");
container.appendChild(title);
}
function isShow() {
container.childNodes.length > 1 ? container.style.visibility = 'visible' : container.style.visibility = 'hidden';
}
function emptyContainer() {
container.innerHTML = '';
container.appendChild(title);
isShow();
}
function makeDraggable(elem) {
document.mouseState = 'up'
elem.mouseState = 'up'
elem.lastMousePosY = null
elem.lastMousePosX = null
elem.proposedNewPosY = parseInt(elem.style.top, 10)
elem.proposedNewPosX = parseInt(elem.style.left, 10)
document.onmousedown = _ => {
document.mouseState = 'down'
}
document.onmouseup = _ => {
document.mouseState = 'up'
elem.mouseState = 'up'
}
elem.onmousedown = e => {
elem.lastMousePosY = e.pageY
elem.lastMousePosX = e.pageX
elem.mouseState = 'down'
document.mouseState = 'down'
document.onselectstart = e => {
e.preventDefault()
return false
}
}
elem.onmouseup = e => {
elem.mouseState = 'up'
document.mouseState = 'up'
document.onselectstart = null
}
const getAtInt = (obj, attrib) => parseInt(obj.style[attrib], 10)
document.onmousemove = e => {
if ((document.mouseState === 'down') && (elem.mouseState === 'down')) {
elem.proposedNewPosY = getAtInt(elem.parentElement, 'top') + e.pageY - elem.lastMousePosY
elem.proposedNewPosX = getAtInt(elem.parentElement, 'left') + e.pageX - elem.lastMousePosX
if (elem.proposedNewPosY < 0) {
elem.parentElement.style.top = "0px"
} else if (elem.proposedNewPosY > window.innerHeight - getAtInt(elem.parentElement, 'height')) {
elem.parentElement.style.top = window.innerHeight - getAtInt(elem.parentElement, 'height') + 'px'
} else {
elem.parentElement.style.top = elem.proposedNewPosY + 'px'
}
if (elem.proposedNewPosX < 0) {
elem.parentElement.style.left = "0px"
} else if (elem.proposedNewPosX > window.innerWidth - getAtInt(elem.parentElement, 'width')) {
elem.parentElement.style.left = window.innerWidth - getAtInt(elem.parentElement, 'width') + 'px'
} else {
elem.parentElement.style.left = elem.proposedNewPosX + 'px'
}
elem.lastMousePosY = e.pageY
elem.lastMousePosX = e.pageX
}
}
}
function addToContainer(htmlDOM, answers) {
if (answers.length > 0) {
for (let i = 0; i < answers.length; i++) {
let content = document.createElement('div');
let tag = answers[i].tagName;
switch (tag) {
case 'ET-BLANK':
content.textContent = answers[i].textContent;
break;
case 'ET-TOF':
case 'ET-CHOICE':
case 'ET-MATCHING':
content.textContent = answers[i].getAttribute('key');
break;
case 'ET-REFERENCE':
content.innerHTML = answers[i].innerHTML;
break;
case 'VALUE':
(() => {
let identifier = answers[i].textContent
if (identifier.length == 36) { //选择题
let selector = '[identifier="' + identifier + '"]';
content.textContent = htmlDOM.querySelector(selector).textContent;
} else if (identifier.length > 36) { //纠错题
let selectors = identifier.split(',');
for (let i = 0; i < selectors.length; i++) {
let selector = '[identifier="' + selectors[i] + '"]';
content.innerHTML += htmlDOM.querySelector(selector).textContent + "<br>";
}
} else { //填空题
content.textContent = answers[i].textContent;
}
})();
break;
default:
(() => {
if (answers[i].hasAttribute('data-solution')) {
let answer = answers[i].getAttribute('data-solution');
if (!answer.length) {
content.textContent = answers[i].firstElementChild.textContent;
} else {
content.textContent = answer;
}
}
})();
break;
}
content.setAttribute('style', "margin: 10px 10px; color: orange; font-size: medium;" +
"font-family:Georgia, 'Times New Roman', Times, serif; ")
container.appendChild(content);
}
}
}
function parseAjax(htmlDOM) {
emptyContainer();
let tof = htmlDOM.querySelectorAll('et-tof'); //判断题
let blank = htmlDOM.querySelectorAll('et-blank'); //问答题+填空题
let choice = htmlDOM.querySelectorAll('et-choice'); //选择题(二选一，多选)
let matching = htmlDOM.querySelectorAll('et-matching'); //连线题
let reference = htmlDOM.querySelectorAll('et-reference'); //口语参考
let identifier = htmlDOM.querySelectorAll('correctresponse value'); //identifier类型
addToContainer(htmlDOM, tof);
addToContainer(htmlDOM, blank);
addToContainer(htmlDOM, choice);
addToContainer(htmlDOM, matching);
addToContainer(htmlDOM, reference);
addToContainer(htmlDOM, identifier);
isShow();
}
function queryManifest(manifestUrl, identifier, courseInfo) {
GM_xmlhttpRequest({
method: "GET",
url: manifestUrl,
onload: response => {
let html = response.response;
let htmlDOM = parser.parseFromString(html, 'text/html');
let selector = 'resource[identifier="' + identifier + '"] file';
let resource = htmlDOM.querySelector(selector).getAttribute('href');
let answerUrl = 'https://centercourseware.sflep.com/' + courseInfo + '/' + resource;
getAjax(answerUrl);
}
});
}
function getCurrentUrl() {
let currentUrl;
try {
currentUrl = document.querySelector('div.courseware_main_1').firstElementChild.src;
} catch (error) {
currentUrl = top.frames[0].location.href;
}
return currentUrl;
}
function getAjax(answerUrl) {
GM_xmlhttpRequest({
method: "GET",
url: answerUrl,
onload: response => {
let html = response.response;
let htmlDOM = parser.parseFromString(html, 'text/html');
// console.log(htmlDOM);
parseAjax(htmlDOM);
}
});
}
function getResource(answerUrl) {
let courseInfo = /com\/(.*?)\//.exec(answerUrl)[1];
let identifier;
try {
identifier = /#(.*)\?/.exec(answerUrl)[1];
} catch (error) {}
if (MANIFEST.includes(courseInfo)) {
let manifestUrl = 'https://centercourseware.sflep.com/' + courseInfo + '/resource/manifest.xml';
queryManifest(manifestUrl, identifier, courseInfo);
} else if (ORIGIN.includes(courseInfo)) {
setTimeout(() => {
let answers = top.frames[0].document.querySelectorAll('[data-solution]');
addToContainer('', answers);
isShow();
}, 2000);
} else {
answerUrl = 'https://centercourseware.sflep.com/' + courseInfo + '/data' + identifier + '.html';
getAjax(answerUrl);
}
}
function isChange() {
let currentUrl = getCurrentUrl();
if (currentUrl != bufferUrl) {
emptyContainer();
getResource(currentUrl);
}
bufferUrl = currentUrl;
}
createContainer();
makeDraggable(title);
isChange();
setInterval(isChange, 5000);
})();
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