Make QOJ great again!
目前為
// ==UserScript==
// @name QOJ Better
// @namespace http://tampermonkey.net/
// @version 1.2
// @description Make QOJ great again!
// @match https://qoj.ac/*
// @match https://jiang.ly/*
// @match https://huang.lt/*
// @match https://contest.ucup.ac/*
// @match https://oj.qiuly.org/*
// @grant none
// @license MIT
// @author cyx
// ==/UserScript==
function switchDomain() {
if (document.getElementById('domain-switcher')) return;
const currentHost = location.host;
const pathname = location.pathname + location.search + location.hash;
const isContest =
pathname.includes('/contest/') ||
pathname.includes('/contests') ||
pathname.includes('/user') ||
pathname.includes('/results');
const domains = isContest
? ['qoj.ac', 'jiang.ly', 'huang.lt', 'oj.qiuly.org', 'contest.ucup.ac']
: ['qoj.ac', 'jiang.ly', 'huang.lt', 'oj.qiuly.org'];
// 构造域名切换内容
const span = document.createElement('span');
span.id = 'domain-switcher';
span.style.fontSize = '0.9em';
span.style.color = '#666';
span.textContent = 'switch to: ';
domains.forEach((domain, i) => {
const link = document.createElement('a');
link.textContent = domain;
link.style.marginLeft = '4px';
link.style.color = domain === currentHost ? '#999' : '#007bff';
link.style.cursor = domain === currentHost ? 'default' : 'pointer';
link.style.textDecoration = 'none';
link.onmouseover = () => (link.style.textDecoration = 'underline');
link.onmouseout = () => (link.style.textDecoration = 'none');
if (domain !== currentHost) {
link.onclick = () => (window.location.href = `https://${domain}${pathname}`);
}
span.appendChild(link);
if (i < domains.length - 1) span.append(' ');
});
// 插入到合适位置
const navbarUser = document.querySelector('.nav-link.dropdown-toggle');
if (navbarUser) {
const parentUl = navbarUser.closest('ul.navbar-nav, ul.nav');
if (parentUl && !parentUl.querySelector('#domain-switcher')) {
const li = document.createElement('li');
li.className = 'nav-item d-flex align-items-center';
li.appendChild(span);
parentUl.insertBefore(li, navbarUser.closest('li.nav-item'));
}
return;
}
const navPills = document.querySelector('.nav.nav-pills.float-right');
if (navPills && !navPills.querySelector('#domain-switcher')) {
const li = document.createElement('li');
li.className = 'nav-item d-flex align-items-center';
li.appendChild(span);
navPills.insertBefore(li, navPills.firstChild);
return;
}
document.body.insertBefore(span, document.body.firstChild);
};
function backProblem() {
if (document.querySelector('.nav-link.back-problem')) return;
const nav = document.querySelector("ul.nav.nav-tabs");
if (!nav) return;
const match = location.pathname.match(/^\/contest\/(\d+)\/problem\/(\d+)/);
if (!match) return;
const pid = match[2];
const li = document.createElement("li");
li.className = "nav-item";
li.innerHTML = `<a class="nav-link back-problem" href="/problem/${pid}" role="tab">Back to the problem</a>`;
const backToContest = Array.from(nav.querySelectorAll("a")).find(a => a.textContent.includes("Back to the contest"));
if (backToContest) backToContest.parentElement.before(li);
else nav.appendChild(li);
};
function viewSubmissions() {
if (document.querySelector('.nav-link.view-submissions')) return;
const nav = document.querySelector('ul.nav.nav-tabs[role="tablist"]');
if (!nav) return;
const matchContest = location.pathname.match(/\/contest\/(\d+)\/problem\/(\d+)/);
const matchProblem = location.pathname.match(/\/problem\/(\d+)/);
const pid = matchContest ? matchContest[2] : matchProblem ? matchProblem[1] : null;
if (!pid) return;
const userLink = document.querySelector('a.dropdown-item[href*="/user/profile/"]');
const username = userLink ? userLink.href.match(/profile\/([^/?#]+)/)?.[1] : null;
if (!username) return;
const li = document.createElement('li');
li.className = 'nav-item';
li.innerHTML = `<a class="nav-link view-submissions" href="/submissions?problem_id=${pid}&submitter=${username}" role="tab">View submissions</a>`;
nav.appendChild(li);
};
function viewInContestLinks() {
const alertBox = document.querySelector('.alert.alert-primary');
if (!alertBox) return;
const listItems = alertBox.querySelectorAll('ul.uoj-list li a[href*="/contest/"]');
if (!listItems.length) return;
const pidMatch = window.location.pathname.match(/\/problem\/(\d+)/);
if (!pidMatch) return;
const pid = pidMatch[1];
listItems.forEach(a => {
if (a.parentElement.querySelector('a[data-added="true"]')) return;
const match = a.href.match(/\/contest\/(\d+)(\?v=\d+)?/);
if (!match) return;
const cid = match[1];
const ver = match[2] || '';
const viewLink = document.createElement('a');
viewLink.textContent = '[view in contest]';
viewLink.href = `/contest/${cid}/problem/${pid}${ver}`;
viewLink.style.marginLeft = '4px';
viewLink.dataset.added = 'true';
a.insertAdjacentElement('afterend', viewLink);
});
};
(function () {
'use strict';
// --- 定义主函数 ---
function main() {
switchDomain();
backProblem();
viewSubmissions();
viewInContestLinks();
}
// --- 初次执行 ---
main();
// --- 使用 MutationObserver 监听 DOM 动态变化 ---
const observer = new MutationObserver(() => {
// 检查关键元素是否存在
const needRun =
document.querySelector('.alert.alert-primary') || // 可能是 viewInContestLinks 所需
document.querySelector('ul.nav.nav-tabs') || // viewSubmissions / backProblem
document.querySelector('.nav-link.dropdown-toggle') || // 登录状态
document.querySelector('.nav.nav-pills.float-right'); // 游客状态
if (needRun) {
observer.disconnect(); // 先断开，防止重复触发
setTimeout(() => {
main(); // 稍延迟再执行，确保元素已稳定渲染
observer.observe(document.body, { childList: true, subtree: true }); // 重新监听
}, 100);
}
});
// 启动观察器
observer.observe(document.body, { childList: true, subtree: true });
})();