Translate chosen text to another language with DeepL API.
Version au
// ==UserScript==
// @license MIT
// @name Smart Translate with DeepL API
// @namespace http://tampermonkey.net/
// @version 1.2.0
// @description Translate chosen text to another language with DeepL API.
// @author Twil3akine
// @match *://*/*
// @match file:///*
// @grant GM_xmlhttpRequest
// @grant GM_getValue
// @grant GM_setValue
// ==/UserScript==
(function () {
'use strict';
// APIキーを取得または保存
const getApiKey = async () => {
let apiKey = await GM_getValue('DEEPL_API_KEY', null);
if (!apiKey) {
apiKey = prompt('Enter your DeepL API key:');
if (apiKey) {
await GM_setValue('DEEPL_API_KEY', apiKey);
} else {
alert('API key is required to use this script.');
}
}
return apiKey;
};
const translateText = async (text, lang) => {
const apiKey = await getApiKey();
if (!apiKey) return;
const url = 'https://api-free.deepl.com/v2/translate';
const params = {
auth_key: apiKey,
text: text,
target_lang: lang,
};
GM_xmlhttpRequest({
method: 'POST',
url: url,
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
},
data: new URLSearchParams(params).toString(),
onload: (response) => {
try {
const result = JSON.parse(response.responseText);
const translatedText = result.translations[0].text;
alert(`${text}\n\n->\n\n${translatedText}`);
console.log(`${text}\n\n->\n\n${translatedText}`);
} catch (e) {
console.error('Error parsing the response from DeepL:', e);
alert('An error occurred while processing the translation.');
}
},
onerror: (error) => {
console.error('Error with DeepL API request:', error);
alert('Error occurred while translating. Please try again later.');
},
});
};
console.log('Smart-Translate is started!');
document.addEventListener('keydown', async (event) => {
if (event.altKey && event.key === 't') {
const selectedText = window.getSelection().toString().trim();
if (selectedText) {
await translateText(selectedText, 'JA');
} else {
alert('Please select text!');
}
}
if (event.altKey && event.key === 'r') {
const apiKey = await getApiKey();
const newKey = prompt(`Please input your new API key\nNow API key: ${apiKey}`);
if (newKey) {
await GM_setValue('DEEPL_API_KEY', newKey);
alert('API key updated successfully.');
}
}
});
})();