在百度和谷歌搜索结果页的搜索按钮旁边添加隐藏的切换按钮，鼠标悬停在搜索按钮上时显示，方便在两个搜索引擎之间快速切换。
// ==UserScript==
// @name 搜索引擎快捷跳转
// @namespace https://greasyfork.org/users/812563
// @icon https://www.google.com/favicon.ico
// @version 1.0.2
// @description 在百度和谷歌搜索结果页的搜索按钮旁边添加隐藏的切换按钮，鼠标悬停在搜索按钮上时显示，方便在两个搜索引擎之间快速切换。
// @author chilinha
// @match *://www.baidu.com/s?*
// @match *://www.google.com/search?*
// @license MIT
// ==/UserScript==
(function() {
'use strict';
const baiduButtonSelector = '#su';
const googleButtonSelector = '.HZVG1b.Tg7LZd';
let searchButton = document.querySelector(baiduButtonSelector) || document.querySelector(googleButtonSelector);
if (!searchButton) return;
let q = '';
let input = document.createElement('input');
input.style.display = 'none';
input.style.position = 'absolute';
input.style.marginLeft = '10px';
let hideTimeout;
searchButton.addEventListener('mouseenter', function(event) {
const rect = searchButton.getBoundingClientRect();
const x = event.clientX - rect.left;
if (window.location.hostname === 'www.google.com') {
if (rect.width - x <= 44) {
setupSwitchButton('https://www.baidu.com/s?wd=', '百度一下', '#4e6ef2');
}
} else if (window.location.hostname === 'www.baidu.com') {
setupSwitchButton('https://www.google.com/search?q=', 'Google', '#4285f4');
}
});
function setupSwitchButton(baseUrl, buttonText, backgroundColor) {
let searchInput = document.querySelector(window.location.hostname === 'www.baidu.com' ? 'input[name="wd"]' : 'input[name="q"]');
if (searchInput) {
let searchQuery = searchInput.value;
q = baseUrl + encodeURIComponent(searchQuery);
input.setAttribute('value', buttonText);
input.setAttribute('type', 'button');
input.style.color = 'white';
input.style.background = backgroundColor;
input.style.width = '110px';
input.style.height = searchButton.offsetHeight + 'px';
input.style.border = '1px solid';
input.style.borderRadius = '30px';
input.style.cursor = 'pointer';
input.style.display = 'inline';
}
input.style.top = searchButton.offsetTop + 'px';
input.style.left = (searchButton.offsetLeft + searchButton.offsetWidth) + 'px';
clearTimeout(hideTimeout);
}
searchButton.addEventListener('mouseleave', function() {
hideTimeout = setTimeout(() => {
input.style.display = 'none';
}, 500);
});
input.addEventListener('mouseenter', function() {
clearTimeout(hideTimeout);
});
input.addEventListener('mouseleave', function() {
hideTimeout = setTimeout(() => {
input.style.display = 'none';
}, 500);
});
input.addEventListener('click', function() {
window.open(q);
});
searchButton.parentNode.appendChild(input);
})();