LeetCode 跳转到 LeetCode.cn

在 LeetCode.com 上添加一个跳转到 LeetCode.cn 的超链接按钮

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         LeetCode 跳转到 LeetCode.cn
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  在 LeetCode.com 上添加一个跳转到 LeetCode.cn 的超链接按钮
// @author       Moranjianghe
// @match        https://leetcode.com/*
// @license      MIT
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // 创建一个新的<a>元素作为按钮
    var link = document.createElement('a');
    var buttonText = document.createTextNode('跳转到 LeetCode.cn');
    link.appendChild(buttonText);
    link.className = 'ml-2 group/nav-back cursor-pointer gap-2 hover:text-lc-icon-primary dark:hover:text-dark-lc-icon-primary flex items-center h-[32px] transition-none hover:bg-fill-quaternary dark:hover:bg-fill-quaternary text-gray-60 dark:text-gray-60 px-2';

    // 设置超链接的 href 属性
    function updateLink() {
        var path = window.location.pathname;
        var newUrl = 'https://leetcode.cn' + path;
        link.setAttribute('href', newUrl);
    }

    // 使用 MutationObserver 监听 URL 变化
    var observer = new MutationObserver(function(mutations) {
        mutations.forEach(function(mutation) {
            if (mutation.type === 'childList') {
                updateLink(); // 当 URL 变化时更新超链接
            }
        });
    });

    var config = { childList: true, subtree: true };
    observer.observe(document.body, config); // 开始监听

    // 尝试添加按钮到目标<div>
    function tryAppendButton() {
        var targetDiv = document.getElementById('ide-top-btns');
        if (targetDiv) {
            targetDiv.appendChild(link);
            clearInterval(appendButtonInterval); // 如果找到目标元素,停止尝试
        }
    }

    var appendButtonInterval = setInterval(tryAppendButton, 500); // 每500毫秒尝试一次添加按钮
})();