// ==UserScript==
// @name         Leetcode 助手
// @namespace    http://tampermonkey.net/
// @homepageURL   https://github.com/h-hg/leetcode-optimization
// @supportURL    https://github.com/h-hg/leetcode-optimization/issues
// @version      0.2.0
// @description  禁英文站跳中文站，增加中英站互跳按钮，删除中英站一些广告，复制题解与描述
// @author       Hunter Hwang
// @license      MIT
// @match        https://leetcode.com/*
// @match        https://leetcode.com/problems/*
// @match        https://leetcode.cn/problems/*
// @icon         https://assets.leetcode.com/static_assets/public/icons/favicon-192x192.png
// @run-at       document-idle
// @grant        GM_addStyle
// @grant        GM_webRequest
// ==/UserScript==
(function () {
'use strict';
// function handleCopy(e) {
//   e.stopPropagation();
//   const copytext = window.getSelection();
//   const clipdata = e.clipboardData || window.clipboardData;
//   if (clipdata) {
//     clipdata.setData("Text", copytext);
//   }
// }
/**
* @link https://stackoverflow.com/questions/22125865/wait-until-flag-true
*/
function waitFor(condition, callback) {
if (!condition()) {
window.setTimeout(waitFor.bind(null, condition, callback), 1000);
} else {
callback();
}
}
function isLoadFinish() {
var tag = isCNSite() ? 'nav' : 'img';
return document.querySelector(tag) != null;
}
function isCNSite() {
return location.hostname === 'leetcode.cn'
}
function getProblemName() {
var tmp = location.href.match(/problems\/([^\/]+)/);
return (tmp != null && tmp[1] != 'all') ? tmp[1] : null;
}
function copyCnSolution(callback) {
// example: https://leetcode.cn/problems/number-of-matching-subsequences/solutions/1973995/pi-pei-zi-xu-lie-de-dan-ci-shu-by-leetco-vki7/
var match = location.href.match(/problems\/[^\/]+\/solutions\/[^\/]+\/([^\/]+)/);
if (match == null)
return;
const data = JSON.stringify({
"query": `query discussTopic($slug: String) {
solutionArticle(slug: $slug, orderBy: DEFAULT) {
...solutionArticle
content
next {
slug
title
}
prev {
slug
title
}
}
}
fragment solutionArticle on SolutionArticleNode {
ipRegion
rewardEnabled
canEditReward
uuid
title
slug
sunk
chargeType
status
identifier
canEdit
canSee
reactionType
reactionsV2 {
count
reactionType
}
tags {
name
nameTranslated
slug
tagType
}
createdAt
thumbnail
author {
username
isDiscussAdmin
isDiscussStaff
profile {
userAvatar
userSlug
realName
reputation
}
}
summary
topic {
id
subscribed
commentCount
viewCount
post {
id
status
voteStatus
isOwnPost
}
}
byLeetcode
isMyFavorite
isMostPopular
favoriteCount
isEditorsPick
hitCount
videosInfo {
videoId
coverUrl
duration
}
}`,
"variables": {
"slug": match[1],
}
});
const response = fetch(
'https://leetcode.cn/graphql/',
{
method: 'post',
body: data,
headers: {
'Content-Type': 'application/json',
'Content-Length': data.length,
},
}
);
response.then(res => res.json()).then(d => {
navigator.clipboard.writeText(d.data.solutionArticle.content)
})
}
function copyEnsolution() {
// example: https://leetcode.com/problems/median-of-two-sorted-arrays/discuss/2799909/Python-or-Easy-Solution
var match = location.href.match(/problems\/[^\/]+\/discuss\/([^\/]+)\/[^\/]+/);
if (match == null)
return;
const data = JSON.stringify({
"operationName":"DiscussTopic",
"variables":{
"topicId": parseInt(match[1]),
},
"query":`query DiscussTopic($topicId: Int!) {
topic(id: $topicId) {
id
viewCount
topLevelCommentCount
subscribed
title
pinned
tags
hideFromTrending
post {
...DiscussPost
__typename
}
__typename
}
}
fragment DiscussPost on PostNode {
id
voteCount
voteStatus
content
updationDate
creationDate
status
isHidden
coinRewards {
...CoinReward
__typename
}
author {
isDiscussAdmin
isDiscussStaff
username
nameColor
activeBadge {
displayName
icon
__typename
}
profile {
userAvatar
reputation
__typename
}
isActive
__typename
}
authorIsModerator
isOwnPost
__typename
}
fragment CoinReward on ScoreNode {
id
score
description
date
__typename
}`});
const response = fetch(
'https://leetcode.com/graphql/',
{
method: 'post',
body: data,
headers: {
'Content-Type': 'application/json',
'Content-Length': data.length,
},
}
);
response.then(res => res.json()).then(d => {
navigator.clipboard.writeText(d.data.topic.post.content.replaceAll('\\n', '\n'))
})
}
function copySolution() {
if (isCNSite())
copyCnSolution();
else
copyEnsolution();
}
function copyCnDescription() {
// example: https://leetcode.cn/problems/number-of-matching-subsequences/description/
var match = location.href.match(/problems\/([^\/]+)\//);
if (match == null)
return;
const data = JSON.stringify({
"query": `query questionTranslations($titleSlug: String!) {
question(titleSlug: $titleSlug) {
translatedTitle
translatedContent
}
}`,
"variables": {
"titleSlug": "number-of-matching-subsequences"
}
});
const response = fetch(
'https://leetcode.cn/graphql/',
{
method: 'post',
body: data,
headers: {
'Content-Type': 'application/json',
'Content-Length': data.length,
},
}
);
response.then(res => res.json()).then(d => {
navigator.clipboard.writeText(d.data.question.translatedContent)
})
}
function copyEnDescription() {
var match = location.href.match(/problems\/([^\/]+)\//);
if (match == null)
return;
const data = JSON.stringify({
"operationName": "questionData",
"variables": {
"titleSlug": match[1],
},
"query": `query questionData($titleSlug: String!) {
question(titleSlug: $titleSlug) {
questionId
questionFrontendId
boundTopicId
title
titleSlug
content
translatedTitle
translatedContent
isPaidOnly
canSeeQuestion
difficulty
likes
dislikes
isLiked
similarQuestions
exampleTestcases
categoryTitle
contributors {
username
profileUrl
avatarUrl
__typename
}
topicTags {
name
slug
translatedName
__typename
}
companyTagStats
codeSnippets {
lang
langSlug
code
__typename
}
stats
hints
solution {
id
canSeeDetail
paidOnly
hasVideoSolution
paidOnlyVideo
__typename
}
status
sampleTestCase
metaData
judgerAvailable
judgeType
mysqlSchemas
enableRunCode
enableTestMode
enableDebugger
envInfo
libraryUrl
adminUrl
challengeQuestion {
id
date
incompleteChallengeCount
streakCount
type
__typename
}
__typename
}
}`
});
const response = fetch(
'https://leetcode.com/graphql/',
{
method: 'post',
body: data,
headers: {
'Content-Type': 'application/json',
'Content-Length': data.length,
},
}
);
response.then(res => res.json()).then(d => {
navigator.clipboard.writeText(d.data.question.content);
})
}
function copyDescription() {
if(isCNSite())
copyCnDescription();
else
copyEnDescription();
}
function getOtherLangUrl() {
var matchRes = location.href.match(/problems\/([^\/]+)\/?([a-z]+)?/);
if (matchRes == null || matchRes[1] == 'all')
return null;
var problemName = matchRes[1], tab = matchRes[2];
if (tab == 'discuss') {
tab = 'comments';
} else if (tab == 'comments') {
tab = 'discuss';
} else if (tab == 'submissions' || tab == 'solution') {
} else {
tab = '';
}
return `https://leetcode${isCNSite() ? '.com' : '.cn'}/problems/${problemName}/${tab}`
}
function banAutoJump2Cn() {
GM_webRequest([
{ selector: 'https://assets.leetcode.cn/*', action: 'cancel' },
], function (info, message, details) {
console.log(info, message, details);
});
}
function html2elem(html) {
let template = document.createElement('template');
html = html.trim(); // Never return a text node of whitespace as the result
template.innerHTML = html;
return template.content.firstChild;
}
function createBall() {
// add css
GM_addStyle(`
.leetcode-wrapper {
position: fixed;
top: 30%;
left: 10px;
z-index: 1;
}
.leetcode-wrapper .btn {
cursor: move;
width: 48px;
height: 48px;
border-radius: 50%;
border: 2px solid black;
opacity: 0.1;
}
.leetcode-wrapper:hover .btn {
background:url(https://leetcode.com/favicon-96x96.png) no-repeat;
background-size:cover;
opacity: 0.8;
}
.leetcode-wrapper .menu {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 100px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
.leetcode-wrapper:hover .menu {
display: block;
}
.leetcode-wrapper .menu a,
.leetcode-wrapper .menu button {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
border: none;
text-align: center;
background-color: transparent;
cursor: pointer;
width: 100%;
}
.leetcode-wrapper .menu a:hover,
.leetcode-wrapper .menu button:hover {
background-color: #f1f1f1
}
`);
// add html
var wrapper = html2elem(`
<div class="leetcode-wrapper">
<button id="leetcode-btn" class="btn"></button>
<div class="menu">
<!-- <a href="", target="_blank"></a> -->
</div>
</div>
`);
var menu = wrapper.querySelector('.menu');
waitFor(isLoadFinish, () => {
// switch to other language
var link = document.createElement('a');
link.target = '_blank';
link.appendChild(document.createTextNode(isCNSite() ? 'English' : '中文'));
link.href = getOtherLangUrl();
menu.appendChild(link);
// copy solution
var b1 = document.createElement('button')
b1.textContent = isCNSite() ? '复制题解' : 'Copy discuss';
b1.onclick = copySolution;
menu.appendChild(b1)
// copy problem description
var b2 = document.createElement('button')
b2.textContent = isCNSite() ? '复制描述' : 'Copy description';
b2.onclick = copyDescription;
menu.appendChild(b2)
document.body.appendChild(wrapper);
var btn = document.getElementById('leetcode-btn');
btn.addEventListener('mouseenter', function (e) {
menu.firstElementChild.href = getOtherLangUrl();
// TODO
})
})
}
// prevent auto jump to leetcode.cn
if (!isCNSite()) {
banAutoJump2Cn();
}
// AD
if (isCNSite()) {
} else {
GM_addStyle(`
/* 顶部中文横幅 */
#cn-banner {
display: none!important;
}';
#region_switcher{
display: none!important;
}
/* 顶部 LeetCode is hiring! Apply Now! */
.feedback-anchor {
display: none!important;
};
`);
}
// problems navigator
let problemName = getProblemName();
if (problemName != null) {
createBall();
}
// document.addEventListener("copy", handleCopy, true);
})();