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WhatsApp Translator

Translate selected WhatsApp messages

当前为 2025-08-16 提交的版本，查看 最新版本。

// ==UserScript==
// @name         WhatsApp Translator
// @namespace    http://tampermonkey.net/
// @version      1.2
// @description  Translate selected WhatsApp messages
// @author       HeT
// @match        https://web.whatsapp.com/*
// @grant        GM_xmlhttpRequest
// @connect      translator-api-lovat.vercel.app
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    const serverUrl = 'https://translator-api-lovat.vercel.app/api/translate';

    document.body.addEventListener('click', function (e) {
        const bubble = e.target.closest('.message-in, .message-out');
        if (!bubble) return;

        const messageTextElement = bubble.querySelector('span.selectable-text span');
        if (!messageTextElement) return;

        const originalText = messageTextElement.innerText.trim();
        if (!originalText) return;

        translate(originalText, (translated) => {
            if (translated) {
                messageTextElement.innerText = translated;
            }
        });
    });

    function translate(text, callback) {
        GM_xmlhttpRequest({
            method: 'POST',
            url: serverUrl,
            headers: { 'Content-Type': 'application/json' },
            data: JSON.stringify({ q: text, to: 'zh-CHS' }),
            onload: function(response) {
                try {
                    const data = JSON.parse(response.responseText);
                    if (data.translation && data.translation.length) {
                        callback(data.translation[0]);
                    } else {
                        console.error("翻译API返回异常", data);
                        callback(null);
                    }
                } catch (e) {
                    console.error("解析返回数据失败", e, response.responseText);
                    callback(null);
                }
            },
            onerror: function(err) {
                console.error("请求失败", err);
                callback(null);
            }
        });
    }

    // ==============================
    // 🔥 预热 API，避免第一次延迟
    // ==============================
    setTimeout(() => {
        translate("ping", () => {
        });
    }, 2000);
})();