sn-translator/sn_translator/sn-translator.js

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// ==UserScript==
// @name SN translator
// @namespace http://tampermonkey.net/
// @version 0.1
// @description Translate posts on SN
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// @author ekzyis
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// @match https://stacker.news/*
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// @icon https://img.freepik.com/free-vector/lightning-bolt-coloured-outline_78370-517.jpg?w=826&t=st=1671940131~exp=1671940731~hmac=d04f3bd1468f1d362a864b4a25e367aef4d1941991161aa008684c5a4089cf0b
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// @grant GM_xmlhttpRequest
// @grant GM_addStyle
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// ==/UserScript==
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/**
MIT License
Copyright (c) 2022 ekzyis
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
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const headers = {
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origin: 'https://libretranslate.com',
accept: '*/*',
'accept-language': 'de-DE,de;q=0.9,ru-DE;q=0.8,ru;q=0.7,en-US;q=0.6,en;q=0.5',
'sec-ch-ua': '"Not?A_Brand";v="8", "Chromium";v="108", "Google Chrome";v="108"',
'sec-ch-ua-mobile': '?0',
'sec-ch-ua-platform': '"Linux"',
'sec-fetch-dest': 'empty',
'sec-fetch-mode': 'cors',
'sec-fetch-site': 'same-origin',
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};
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function translate(text, source, target) {
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const formData = new FormData();
formData.append('q', text);
formData.append('source', source);
formData.append('target', target);
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return new Promise((resolve, reject) => {
GM_xmlhttpRequest({
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method: 'POST',
url: 'https://libretranslate.com/translate',
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data: formData,
headers,
synchronous: true,
onload: function (res) {
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const body = JSON.parse(res.responseText);
if (res.status !== 200) return reject(body);
return resolve(body.translatedText);
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},
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});
});
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}
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const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
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const log = (msg) => console.log(`sn-translator:`, msg);
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function createButton(textNode) {
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const btn = document.createElement('button');
btn.innerText = 'translate';
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btn.onclick = async (e) => {
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const hasTranslation = !!textNode.querySelector('hr');
if (hasTranslation) return;
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// TODO: let user choose target language
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const t = await translate(textNode.innerText, 'auto', 'en').catch(console.error);
if (t) {
const divider = document.createElement('hr');
textNode.appendChild(divider);
const em = document.createElement('em');
const p = document.createElement('p');
p.innerText = 'Translation:';
const p2 = document.createElement('p');
p2.innerText = t;
em.appendChild(p);
em.appendChild(p2);
textNode.appendChild(em);
}
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};
btn.classList.add('translate');
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return btn;
}
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function addButtons() {
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const commentSection = document.querySelector('.item_comments__cN57K');
if (!commentSection) return;
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const comments = commentSection.querySelectorAll('.comment_comment__5uvl3');
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log(`Found ${comments.length} comment(s)`);
log(`Adding translate button to every comment ...`);
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for (const comment of comments) {
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const topBar = comment.querySelector('.item_other__qNlji');
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const textNode = comment.querySelector('.comment_text__nHI0E > .text_text__fuZIZ');
const btn = createButton(textNode);
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topBar.appendChild(btn);
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}
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log(`Done`);
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}
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(async function () {
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// Sleep before running script on page load
// since else we might get overwritten by loading content.
const initialSleep = 1000;
await sleep(initialSleep);
GM_addStyle(`
.translate {
color: var(--theme-grey);
border: none;
cursor: pointer;
background: rgba(0,0,0,0);
}
`);
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let pathname = window.location.pathname;
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log(`Current location: ${pathname}`);
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addButtons();
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// Check if URL changed and rerun script
const scriptInterval = 1000;
setInterval(() => {
if (window.location.pathname !== pathname) {
pathname = window.location.pathname;
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log(`New location detected: ${pathname}`);
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addButtons();
}
}, scriptInterval);
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})();