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一键去除在线翻译网站的换行符

在各大在线翻译网站的页面上增加了一个“格式化”按钮，用来移除从PDF等复制过来的文本中包含的回车符、换行符、"\n"等，支持DeepL翻译、谷歌翻译、百度翻译、网易有道翻译

Versione datata 02/01/2023. Vedi la nuova versione l'ultima versione.

// ==UserScript==
// @name         一键去除在线翻译网站的换行符
// @namespace    https://greasyfork.org/zh-CN/scripts/390059-%E7%BF%BB%E8%AF%91%E6%8F%92%E4%BB%B6-%E5%8E%BB%E9%99%A4%E6%8D%A2%E8%A1%8C
// @version      2.2
// @description  在各大在线翻译网站的页面上增加了一个“格式化”按钮，用来移除从PDF等复制过来的文本中包含的回车符、换行符、"\n"等，支持DeepL翻译、谷歌翻译、百度翻译、网易有道翻译
// @author       Kevin Chen
// @match        https://fanyi.baidu.com/*
// @match        https://fanyi.youdao.com/
// @match        https://translate.google.cn/*
// @match        https://translate.google.com/*
// @match        https://www.deepl.com/translator
// @icon         https://translate.google.cn/favicon.ico
// @grant        GM_addStyle
// @run-at       document-end
// @license      MIT
// ==/UserScript==

// DeepL翻译CONFIG配置文件
const DEEPL_TRANSLATE_CONFIG = {
  host: 'www.deepl.com',
  inputAreaSelector: '#dl_translator textarea',
  containerSelector: '#dl_translator > div.lmt__docTrans-tab-container > nav',
  translateButtonSelector: '#dl_translator > div.lmt__docTrans-tab-container > nav > button.switchOption--2o-9u.variant_light--1OFSH.active--WFN-c',
  buttonClass: 'myCustomDeeplButtonClass',
}

// 谷歌翻译（中国）CONFIG配置文件
const GOOGLE_FANYI_CONFIG = {
  host: 'translate.google.cn',
  inputAreaSelector: 'textarea',
  containerSelector: '#yDmH0d > c-wiz nav',
  translateButtonSelector: '',
  buttonClass: 'myCustomGoogleButtonClass',
}

// 谷歌翻译（国际）CONFIG配置文件
const GOOGLE_TRANSLATE_CONFIG = {
  host: 'translate.google.com',
  inputAreaSelector: 'textarea',
  containerSelector: '#yDmH0d > c-wiz nav',
  translateButtonSelector: '',
  buttonClass: 'myCustomGoogleButtonClass',
}

// 百度翻译CONFIG配置文件
const BAIDU_FANYI_CONFIG = {
  host: 'fanyi.baidu.com',
  inputAreaSelector: '#baidu_translate_input',
  containerSelector: '#main-outer > div > div > div.translate-wrap > div.trans-operation-wrapper.clearfix > div.trans-operation.clearfix',
  translateButtonSelector: '#translate-button',
  buttonClass: 'myCustomBaiduButtonClass',
}

// 有道翻译CONFIG配置文件
const YOUDAO_FANYI_CONFIG = {
  host: 'fanyi.youdao.com',
  inputAreaSelector: '#inputOriginal',
  containerSelector: 'body > div.fanyi > div.fanyi__operations > div.fanyi__operations--left',
  translateButtonSelector: '#transMachine',
  buttonClass: '',
}

const FORMAT_CN = '格式化'
const FORMAT_EN = 'Format'
const LOADING_WAIT_TIME = 500

GM_addStyle(`
    .myCustomGoogleButtonClass {
        color: #1967d2; 
        background: transparent; 
        border-width: 1px; 
        border-radius: 4px; 
        border-style: solid; 
        padding: 0 15px 0 15px; 
        height: 36px; 
        font-size: .875rem; 
        border-color: #dadce0; 
        cursor:pointer
    }
    .myCustomGoogleButtonClass:hover {
        background-color: #f1f5f9; 
        color: #174ea6
    }
`)
GM_addStyle(`
    .myCustomBaiduButtonClass {
        text-align: center; 
        margin-left: 14px; 
        width: 106px; 
        height: 30px; 
        line-height: 30px; 
        font-size: 14px; 
        color: #4395ff; 
        letter-spacing: 2px; 
        background-color: #f9f9f9; 
        border: 1px solid #4395ff;
        border-radius: 3px
    }
`)
GM_addStyle(`
    .myCustomDeeplButtonClass {
        background-color: #fff; 
        border: 1px solid #e3e3e3; 
        border-radius: 8px; 
        cursor: pointer; 
        margin-right: 10px;
        margin-bottom: 7px; 
        height: 66px; 
        min-width: 160px;
        box-shadow: 0px 4px 16px rgb(0 0 0 / 8%); 
        font-weight: 400; 
        font-size: 20px;
    }
`)

// Convert string to web element
function parseDom(arg) {
  var d = document.createElement('div')
  d.innerHTML = arg
  return d.firstChild
}

// Format code
const format = function (hostClass) {
  var txt = document.querySelector(hostClass.inputAreaSelector).value
  for (var i = 0; i < txt.length; i++) {
    if (txt.indexOf('\n')) txt = txt.replace('\n', ' ')
  }
  document.querySelector(hostClass.inputAreaSelector).value = txt
}

// Create new button
function createButton(host) {
  var buttonHtml = ''
  var new_button = null
  var container = null
  if (host == GOOGLE_FANYI_CONFIG.host) {
    new_button = document.createElement('input')
    new_button.value = FORMAT_CN
    new_button.setAttribute('class', 'myCustomGoogleButtonClass')
    new_button.type = 'button'
    new_button.onclick = function () {
      format(GOOGLE_FANYI_CONFIG)
    }
    container = document.querySelector(GOOGLE_FANYI_CONFIG.containerSelector)
  } else if (host == GOOGLE_TRANSLATE_CONFIG.host) {
    new_button = document.createElement('input')
    new_button.value = FORMAT_EN
    new_button.setAttribute('class', 'myCustomGoogleButtonClass')
    new_button.type = 'button'
    new_button.onclick = function () {
      format(GOOGLE_TRANSLATE_CONFIG)
    }
    container = document.querySelector(GOOGLE_FANYI_CONFIG.containerSelector)
  } else if (host == BAIDU_FANYI_CONFIG.host) {
    new_button = parseDom(`<a href="javascript:" class="myCustomBaiduButtonClass">${FORMAT_CN}</a>`)
    new_button.onclick = function () {
      var translate_button = document.querySelector(BAIDU_FANYI_CONFIG.translateButtonSelector)
      format(BAIDU_FANYI_CONFIG)
      translate_button.click()
    }
    container = document.querySelector(BAIDU_FANYI_CONFIG.containerSelector)
  } else if (host == YOUDAO_FANYI_CONFIG.host) {
    new_button = parseDom(`<a class="fanyi__operations--man clog-js" data-clog="AT_BUTTON_CLICK" data-pos="web.i.top" id="transMan" href="javascript:;"> ${FORMAT_CN} </a>`)
    new_button.onclick = function () {
      var translate_button = document.querySelector(YOUDAO_FANYI_CONFIG.translateButtonSelector)
      format(YOUDAO_FANYI_CONFIG)
      translate_button.click()
    }
    container = document.querySelector(YOUDAO_FANYI_CONFIG.containerSelector)
  } else if (host == DEEPL_TRANSLATE_CONFIG.host) {
    new_button = parseDom(`<button type="button" tabindex="100" class="myCustomDeeplButtonClass"><span style="outline: none;">${FORMAT_CN}</span></button>`)
    new_button.onclick = function () {
      var translate_button = document.querySelector(DEEPL_TRANSLATE_CONFIG.translateButtonSelector)
      format(DEEPL_TRANSLATE_CONFIG)
      translate_button.click()
    }
    container = document.querySelector(DEEPL_TRANSLATE_CONFIG.containerSelector)
  }
  container.appendChild(new_button)
  return
}

setTimeout(function () {
  createButton(window.location.host)
}, LOADING_WAIT_TIME)