google translate element

Google Translate Elementを自動的にページに挿入する。ページを移動したり新しいタブを開いたりすることなくページ全体を翻訳する。ソースコードを編集して変数"includedlanguages"と"ignorelanguages"を適切に設定するとより便利に使える。

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

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

(I already have a user script manager, let me install it!)

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.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name     google translate element
// @version  1
// @grant    none
// @include  http://*
// @include  https://*
// @include  file://*
// @author   zupffwhy
// @homepageURL		https://addons.mozilla.org/firefox/user/12942033/
// @description:ja	Google Translate Elementを自動的にページに挿入する。ページを移動したり新しいタブを開いたりすることなくページ全体を翻訳する。ソースコードを編集して変数"includedlanguages"と"ignorelanguages"を適切に設定するとより便利に使える。
// @description:en	Automatically inserts Google Translate Element into the page. Translate the entire page without leaving page or opening a new tab. You can use it more conveniently by editing the source code and setting the variables "includedlanguages" and "ignorelanguages" appropriately.
// @icon	data:image/png;base64,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
// @namespace https://greasyfork.org/users/417745
// @description Google Translate Elementを自動的にページに挿入する。ページを移動したり新しいタブを開いたりすることなくページ全体を翻訳する。ソースコードを編集して変数"includedlanguages"と"ignorelanguages"を適切に設定するとより便利に使える。
// ==/UserScript==

// Specify a list of languages to translate to.
// If the string is empty, all languages, supported by Google Translate Element are displayed.
// Describe language codes separated by commas. Must not contain whitespace.
// The following URL is not a description of Google Translate Element, but many languages in Google Translate Element will be the same language code.
// https://cloud.google.com/translate/docs/languages
// let includedlanguages = "en,ja,zh-CN"; // Specify only English, Japanese, German, and Chinese (mandarin) as the target languages.
let includedlanguages = "";

// Specify a language (your native language) that is not automatically translated.
// let ignorelanguages = ["ja", "en"]; // Do not translate pages written in Japanese or English.
// let ignorelanguages = navigator.languages; // See https://developer.mozilla.org/docs/Web/API/NavigatorLanguage/languages
let ignorelanguages = [navigator.language]; // See https://developer.mozilla.org/docs/Web/API/NavigatorLanguage/language

// References
// How TO - Google Translate https://www.w3schools.com/howto/howto_google_translate.asp
// List of ISO 639-1 codes https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
// ISO 3166-1 https://en.wikipedia.org/wiki/ISO_3166-1


// Code
function modify_page(pagelanguage, includedlanguages) {
    if (document.querySelector("#google_translate_element")) {
    	return false;
    }
    let url = "//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit";
    let loc = new URL(window.location);
    if (loc.protocol != "http:" && loc.protocol != "https:") {
			url = "https:" + url;
    }
    let s = `function googleTranslateElementInit() {new google.translate.TranslateElement({pageLanguage: "${pagelanguage}", includedLanguages: "${includedlanguages}", layout: google.translate.TranslateElement.InlineLayout.SIMPLE, multilanguagePage: true,}, "google_translate_element" );}`;

    let elem = document.createElement("script");
    elem.setAttribute("id", "google_translate_element");
    elem.appendChild(document.createTextNode(s));
    document.body.appendChild(elem);
    elem = document.createElement("script");
    elem.setAttribute("src", url);
    document.body.appendChild(elem);
}

chrome.i18n.detectLanguage(document.body.innerText).then(langs => {
	//if (ignorelanguages.length === 0) {
  //  ignorelanguages = navigator.languages;
  //}
  if (langs.languages.length === 0 || ignorelanguages.indexOf(langs.languages[0].language) < 0) {
		modify_page("", includedlanguages);
  }
});