imm trans

alt+a to translate page, alt+b to translate input(see comments in bottom of code), alt+c to translate stuff under mouse position. Google translate api call adpated from https://addons.mozilla.org/en-US/firefox/addon/translation-selected-text/?utm_content=addons-manager-reviews-link&utm_medium=firefox-browser&utm_source=firefox-browser which i find very useful.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         imm trans
// @namespace tiny-tiny-imm-trans
// @license MIT
// @version      0.2.3
// @include *
// @description  alt+a to translate page, alt+b to translate input(see comments in bottom of code), alt+c to translate stuff under mouse position. Google translate api call adpated from https://addons.mozilla.org/en-US/firefox/addon/translation-selected-text/?utm_content=addons-manager-reviews-link&utm_medium=firefox-browser&utm_source=firefox-browser which i find very useful.
// @run-at       document-start
// ==/UserScript==

(function() {
    'use strict';
    let domContentLoadedFlag = false;
    let cnt_now = -1;
    let mouseX, mouseY;

    function translateText(to_lang, text, callback) {
       var translation_promise = function(){
           const url = "https://translate.googleapis.com/translate_a/single?client=gtx&dt=t&dt=bd&dj=1&sl=auto";
           return fetch(url + "&tl=" + to_lang + "&q=" + encodeURIComponent(text)).then(
		   r => r.ok ? r.json().then(j => j.sentences.map(s => s.trans).join("")) : "Error: " + r.statusText,
		   e => "Error: " + e.message);
       }
        translation_promise().then(callback);
    }



    function processParagraphs(has_selector, selected) {
        if (cnt_now<=0 && has_selector==0){
            const paragraphs = has_selector==0? document.querySelectorAll('h1, h2, h3, h4') : [selected];

            for (const paragraph of paragraphs) {
                const originalText = paragraph.textContent;
                translateText("en", originalText, translation => {
                    //console.log(`Original Text: ${originalText}`);
                    //console.log(`Translation: ${translation}`);
                    //console.log('---');
                    paragraph.innerHTML += `<span style='background-color:#f4c6f4 !important; color:black !important;'><br>▷${translation}▬<br><br>`;
                });
            }
            cnt_now = 0;
        }

        const paragraphs = has_selector==0? document.querySelectorAll('p, div.content, div.commentthread_comment_text') : [selected];
        ;
        let cnt = 0;
        let i = 0;
        //console.log(paragraphs.length);
        for (const paragraph of paragraphs) {
            if (has_selector==0 && i<cnt_now){
                i++;
                continue;
            }
            const originalText = paragraph.textContent.trim();
            if (originalText=='') {i++; continue;}
            translateText("en", originalText, translation => {
                paragraph.innerHTML += `<span style='display: block !important; background-color:#fff4d9 !important; color:black !important;'><br>▷${translation}▬<br><br>`;
            });
            cnt++;
            i++;
            cnt_now++;
            if (cnt>=8) {return;}
        }

    }

    function trans_input(){
        const inputField = document.activeElement;
        const origin = inputField.value;
        const tmp = origin.split(/\s+/);
        const targetLang = tmp[0];
        translateText(targetLang, tmp.slice(1).join(" "), translation=>{
            inputField.value = translation;
            }
        );
    }



    window.addEventListener('DOMContentLoaded', function() {
        domContentLoadedFlag = true;
    });
    document.addEventListener('mousemove', function(event) {
        mouseX = event.clientX;
        mouseY = event.clientY;
    });
    document.addEventListener('keydown', function(event) {
        // Translate whole page.
	// At first trigger, translate h1 through h4 and first 8 p tags.
	// Afterwards, translate 8 more paragraphs at each time.
        if (event.altKey && event.key === 'a' && domContentLoadedFlag) {
            event.preventDefault(); // Prevent the default browser behavior
            processParagraphs(0,0);
        }
    });
    document.addEventListener('keydown', function(event) {
        // Translate input: the input is prefix with the target language code,
	// e.g. "en my text" for translating to English (original lang
	// is up to auto detection). This prefix will be stripped.
	// FIXME: prompt failure when timeout, e.g. cn is not a valid prefix.
        if (event.altKey && event.key === 'b' && domContentLoadedFlag) {
            event.preventDefault(); // Prevent the default browser behavior
            trans_input();
        }
    });

    document.addEventListener('keydown', function(event) {
        // Translate stuff under mouse hover
        if (event.altKey && event.key === 'c' && domContentLoadedFlag) {
            event.preventDefault(); // Prevent the default browser behavior
            processParagraphs(1, document.elementFromPoint(mouseX, mouseY));
        }
    });
})();