支持自动语言检测的划词翻译工具，带可视化界面，适配移动端居中显示
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// ==UserScript==
// @name 智能划词翻译工具
// @namespace http://tampermonkey.net/
// @version 1.0
// @description 支持自动语言检测的划词翻译工具，带可视化界面，适配移动端居中显示
// @author Ling
// @match *://*/*
// @connect fanyi.baidu.com
// @grant GM_xmlhttpRequest
// @grant GM_addStyle
// @grant GM_notification
// @description 2025/04/01 19:41:00
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// 样式注入（优化移动端居中显示）
GM_addStyle(`
.translation-box {
position: fixed;
background: #ffffff;
border: 1px solid #e0e0e0;
border-radius: 8px;
box-shadow: 0 4px 12px rgba(0,0,0,0.15);
padding: 16px;
max-width: 90vw;
width: 320px;
z-index: 2147483647;
font-family: 'Segoe UI', system-ui, sans-serif;
transition: opacity 0.3s;
box-sizing: border-box;
}
.translation-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 12px;
}
.translation-title {
font-weight: 600;
color: #2d3748;
font-size: 14px;
}
.translation-close {
cursor: pointer;
color: #718096;
font-size: 18px;
line-height: 1;
padding: 4px;
}
.translation-content {
line-height: 1.6;
color: #4a5568;
font-size: 14px;
max-height: 50vh;
overflow-y: auto;
word-break: break-word;
}
.loading-indicator {
display: flex;
align-items: center;
gap: 8px;
}
.loading-spinner {
width: 16px;
height: 16px;
border: 2px solid #e2e8f0;
border-top-color: #4299e1;
border-radius: 50%;
animation: spin 1s linear infinite;
}
@keyframes spin {
to { transform: rotate(360deg); }
}
@media (max-width: 768px) {
.translation-box {
width: 85vw;
padding: 12px;
font-size: 13px;
left: 50%;
transform: translateX(-50%);
top: 20%; /* 移动端固定顶部20%位置 */
}
.translation-content {
font-size: 13px;
max-height: 40vh;
}
}
`);
// 翻译核心模块（保持不变）
const TranslationCore = {
async detectLanguage(text) {
try {
const response = await this._request({
url: 'https://fanyi.baidu.com/langdetect',
method: 'POST',
headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
data: `query=${encodeURIComponent(text)}`
});
if (response.error === 0 && response.lan) {
return response.lan.toLowerCase();
}
throw new Error(response.msg || '检测失败');
} catch (error) {
console.warn('语言检测失败:', error);
return 'auto';
}
},
async translate(text, from = 'auto', to = 'zh') {
try {
if (from === 'auto') {
from = await this.detectLanguage(text) || 'en';
}
if (from === 'zh' && to === 'auto') to = 'en';
if (from !== 'zh' && to === 'auto') to = 'zh';
const response = await this._request({
url: 'https://fanyi.baidu.com/ait/text/translate',
method: 'POST',
headers: { 'Content-Type': 'application/json' },
data: JSON.stringify({
query: text,
from: from,
to: to,
milliTimestamp: Date.now(),
domain: "common",
needPhonetic: false
})
});
return this._parseSSE(response);
} catch (error) {
console.error('翻译失败:', error);
throw error;
}
},
_parseSSE(rawData) {
const events = rawData.split('\n\n').filter(Boolean);
const results = [];
for (const event of events) {
const lines = event.split('\n');
for (const line of lines) {
if (line.startsWith('data:')) {
try {
const data = JSON.parse(line.slice(5).trim());
if (data?.data?.event === 'Translating') {
const valid = data.data.list
.filter(item => item.dst?.trim())
.map(item => item.dst);
results.push(...valid);
}
} catch (e) {
console.warn('SSE解析错误:', e);
}
}
}
}
return results.length > 0 ? results.join('\n') : '未获取到有效翻译结果';
},
_request(options) {
return new Promise((resolve, reject) => {
GM_xmlhttpRequest({
...options,
onload: (resp) => {
try {
resolve(JSON.parse(resp.responseText));
} catch {
resolve(resp.responseText);
}
},
onerror: (err) => reject(err)
});
});
}
};
// 用户界面控制器（调整定位逻辑）
class TranslationUI {
constructor() {
this.isMobile = window.matchMedia('(max-width: 768px)').matches;
this.initDOM();
this.bindEvents();
}
initDOM() {
this.container = document.createElement('div');
this.container.className = 'translation-box';
this.container.style.display = 'none';
this.container.innerHTML = `
<div class="translation-header">
<span class="translation-title">智能翻译</span>
<span class="translation-close">×</span>
</div>
<div class="translation-content"></div>
`;
document.body.appendChild(this.container);
this.content = this.container.querySelector('.translation-content');
this.closeButton = this.container.querySelector('.translation-close');
}
bindEvents() {
this.closeButton.onclick = () => this.hide();
document.addEventListener('mousedown', (e) => {
if (!this.container.contains(e.target)) this.hide();
});
document.addEventListener('touchstart', (e) => {
if (!this.container.contains(e.target)) this.hide();
});
}
showLoading() {
this.content.innerHTML = `
<div class="loading-indicator">
<div class="loading-spinner"></div>
<span>翻译中...</span>
</div>`;
this.container.style.display = 'block';
}
showResult(text) {
this.content.innerHTML = text;
this.container.style.display = 'block';
this.autoHide(5000);
}
showError(msg) {
this.content.innerHTML = `<div style="color: #e53e3e;">${msg}</div>`;
this.container.style.display = 'block';
this.autoHide(3000);
}
hide() {
this.container.style.display = 'none';
}
position(x, y) {
if (this.isMobile) {
// 移动端居中显示，CSS已处理水平居中，垂直位置固定为20%
this.container.style.top = '20%';
this.container.style.left = '50%';
this.container.style.transform = 'translateX(-50%)';
} else {
// 桌面端基于鼠标/触摸位置
const OFFSET = 15;
const rect = this.container.getBoundingClientRect();
let top = y + OFFSET;
let left = x + OFFSET;
if (left + rect.width > window.innerWidth) {
left = Math.max(OFFSET, window.innerWidth - rect.width - OFFSET);
}
if (top + rect.height > window.innerHeight) {
top = Math.max(OFFSET, y - rect.height - OFFSET);
}
this.container.style.top = `${top}px`;
this.container.style.left = `${left}px`;
this.container.style.transform = 'none'; // 清除移动端变换
}
}
autoHide(delay) {
clearTimeout(this.hideTimer);
this.hideTimer = setTimeout(() => this.hide(), delay);
}
}
function isInputElement(node) {
return node && (node.tagName === 'INPUT' || node.tagName === 'TEXTAREA' || node.isContentEditable);
}
function isSearchBox(node) {
return node && node.tagName === 'INPUT' && node.type === 'search';
}
let lastSelection = '';
let lastTranslation = '';
let cacheExpireTimer;
const MAX_HISTORY = 15;
let translationHistory = [];
function updateCache(text, translation) {
lastSelection = text;
lastTranslation = translation;
translationHistory = [
{ text, translation },
...translationHistory.slice(0, MAX_HISTORY - 1)
];
clearTimeout(cacheExpireTimer);
cacheExpireTimer = setTimeout(() => {
lastSelection = '';
lastTranslation = '';
translationHistory = [];
}, 1800000);
}
// 主程序
(function init() {
const ui = new TranslationUI();
let debounceTimer = null;
const debounce = (func, delay = 300) => {
return (...args) => {
clearTimeout(debounceTimer);
debounceTimer = setTimeout(() => func.apply(this, args), delay);
};
};
const handleTranslate = async (x, y, text) => {
if (!text) return;
const cached = translationHistory.find(item => item.text === text);
if (cached) {
ui.position(x, y);
ui.showResult(cached.translation);
return;
}
ui.currentText = text;
ui.position(x, y);
ui.showLoading();
try {
const result = await TranslationCore.translate(text);
updateCache(text, result);
ui.showResult(result);
} catch (error) {
ui.showError(`翻译失败: ${error.message || '服务不可用'}`);
GM_notification({
title: '翻译错误',
text: error.message,
timeout: 3000
});
}
};
const handleMouseUp = debounce((e) => {
const selection = window.getSelection();
const text = selection.toString().trim();
if (text) handleTranslate(e.pageX, e.pageY, text);
}, 150);
const handleTouchEnd = debounce((e) => {
const selection = window.getSelection();
const text = selection.toString().trim();
if (text) {
const touch = e.changedTouches[0];
handleTranslate(touch.pageX, touch.pageY, text);
}
}, 150);
document.addEventListener('mouseup', handleMouseUp);
document.addEventListener('touchend', handleTouchEnd);
})();
})();
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