☰

Tencent Translator Enhancer

It brings back-and-forth translation to Tencent Translator (腾讯翻译君).

目前為 2019-12-24 提交的版本，檢視 最新版本。

// ==UserScript==
// @name        Tencent Translator Enhancer
// @name:ja     Tencent Translator Enhancer
// @name:zh-CN  Tencent Translator Enhancer
// @namespace   knoa.jp
// @description It brings back-and-forth translation to Tencent Translator (腾讯翻译君).
// @description:ja 騰訊翻訳君(腾讯翻译君)に往復翻訳などの機能を追加します。
// @description:zh-CN 在腾讯翻译君中添加往返翻译等功能。
// @include     https://fanyi.qq.com/
// @version     1
// @grant       none
// ==/UserScript==

(function(){
  const SCRIPTID = 'TencentTranslatorEnhancer';
  const SCRIPTNAME = 'Tencent Translator Enhancer';
  const DEBUG = false;/*
[update]

[bug]
たまに失敗するね observe検知のタイミング？

[todo]

[possible]

[memo]
  */
  if(window === top && console.time) console.time(SCRIPTID);
  const CORRECTIONS = [
    (s) => s.replace(/htt?p(s?)[:：]\/\/([^\s。]+)([。. ]*)/ig, 'http$1://$2'),
    (s) => s.replace(/([0-9]+)：([0-9]+)/g, '$1:$2'),
  ];
  const SEPARATORS = ['\n:\n', '\n：\n', '：'];/*翻訳元, 翻訳先, 翻訳先span.textContent */
  const RETRY = 10;
  let site = {
    targets: {
      textpanelSource: () => $('.textpanel-source'),
      sourceTextarea: () => $('[node-type="source-textarea"]'),
      textpanelTargetTextblock: () => $('[node-type="textpanel-target-textblock"]'),
      exchangeLanguageButton: () => $('[node-type="exchange_language_button"]'),
    },
    get: {
      textSrcs: (textpanelTargetTextblock) => textpanelTargetTextblock.querySelectorAll('.text-src'),
      textDsts: (textpanelTargetTextblock) => textpanelTargetTextblock.querySelectorAll('.text-dst'),
      textMatrix: (textpanelTargetTextblock) => {
        return {
          srcs: Array.from(site.get.textSrcs(textpanelTargetTextblock)).map(e => e.textContent),
          dsts: Array.from(site.get.textDsts(textpanelTargetTextblock)).map(e => e.textContent),
        };
      },
    },
  };
  let html, elements = {}, timers = {}, sizes = {};
  let core = {
    initialize: function(){
      html = document.documentElement;
      html.classList.add(SCRIPTID);
      core.ready();
      core.addStyle();
    },
    ready: function(){
      core.getTargets(site.targets, RETRY).then(() => {
        log("I'm ready.");
        core.listenUserActions();
        core.expandClickableArea();
      });
    },
    listenUserActions: function(){
      window.addEventListener('keypress', function(e){
        switch(true){
          case(e.key === 'Enter' && e.shiftKey === true):
            core.translateSwitch();
            return e.preventDefault();
          case(e.key === 'Enter' && e.ctrlKey === true):
            core.translateBackSwitch();
            return e.preventDefault();
        }
      });
    },
    translateSwitch: function(){
      /* 翻訳言語の向きを入れ替える */
      let exchangeLanguageButton = elements.exchangeLanguageButton, sourceTextarea = elements.sourceTextarea;
      exchangeLanguageButton.click();
      sourceTextarea.focus();
    },
    translateBackSwitch: function(){
      /* 往復翻訳の有効無効を切り替える */
      let exchangeLanguageButton = elements.exchangeLanguageButton;
      if(exchangeLanguageButton.dataset.translateBack === 'true'){
        exchangeLanguageButton.dataset.translateBack = 'false';
      }else{
        exchangeLanguageButton.dataset.translateBack = 'true';
        core.translateBack();
      }
    },
    translateBack: function(){
      /* 往復翻訳する */
      let exchangeLanguageButton = elements.exchangeLanguageButton;
      let sourceTextarea = elements.sourceTextarea, textpanelTargetTextblock = elements.textpanelTargetTextblock;
      let source = sourceTextarea.value, target = textpanelTargetTextblock.innerText, result = '';
      /* まだ往復翻訳してなければ */
      let selectionStart = sourceTextarea.selectionStart, selectionEnd = sourceTextarea.selectionEnd;/*カーソル位置を記憶*/
      if(sourceTextarea.value.includes(SEPARATORS[0]) === false){
        result = source + SEPARATORS[0] + target;
      /* すでに往復翻訳済みなら */
      }else{
        source = source.slice(0, source.indexOf(SEPARATORS[0]));
        target = target.slice(0, target.indexOf(SEPARATORS[1]));
        result = source + SEPARATORS[0] + target;
      }
      /* 左辺の表示を完成させる */
      CORRECTIONS.forEach(c => result = c(result));
      sourceTextarea.value = result;
      sourceTextarea.dispatchEvent(new Event('input'));
      sourceTextarea.setSelectionRange(selectionStart, selectionEnd);
      /* 右辺の表示を追従させる */
      core.translateSwitch();
      if(textpanelTargetTextblock.dataset.status !== undefined) return;
      let compositing = false, innerText = textpanelTargetTextblock.innerText;
      let observer = observe(textpanelTargetTextblock, function(records){
        if(sourceTextarea.value.includes(SEPARATORS[0]) === false){
          exchangeLanguageButton.dataset.translateBack = 'false';
          delete(textpanelTargetTextblock.dataset.status);
          observer.disconnect();
          return;
        }
        if(textpanelTargetTextblock.innerText === innerText) return;
        innerText = textpanelTargetTextblock.innerText;
        switch(textpanelTargetTextblock.dataset.status){
          /* 往復を終えた最終翻訳が取得できたタイミング */
          case(undefined):
          case('back'):
            textpanelTargetTextblock.textMatrix = site.get.textMatrix(textpanelTargetTextblock);
            core.translateSwitch();
            textpanelTargetTextblock.dataset.status = 'go';
            break;
          /* 往路スタンバイに戻ったタイミング */
          case('go'):
            setTimeout(function(){
              let textDsts = site.get.textDsts(textpanelTargetTextblock);
              for(let i = Array.from(textDsts).findIndex(t => t.textContent === SEPARATORS[2]) + 1; textDsts[i]; i++){
                textDsts[i].textContent = textpanelTargetTextblock.textMatrix.dsts[i];
                let once = observe(textDsts[i], function(r){
                  log(r);
                });
              }
              textpanelTargetTextblock.dataset.status = 'done';
            }, 1000);/*再度更新される場合があるので*/
            break;
          /* テキスト変更を検知して自動翻訳されたタイミング */
          case('done'):
            if(compositing === true) return;
            core.translateBack();
            textpanelTargetTextblock.dataset.status = 'back';
            break;
        }
      });
      sourceTextarea.addEventListener('compositionstart', function(e){
        compositing = true;
      });
      sourceTextarea.addEventListener('compositionend', function(e){
        compositing = false;
      });
    },
    expandClickableArea: function(){
      let textpanelSource = elements.textpanelSource, sourceTextarea = elements.sourceTextarea;
      textpanelSource.addEventListener('click', function(e){
        sourceTextarea.focus();
      }, true);
    },
    getTargets: function(targets, retry = 0){
      const get = function(resolve, reject, retry){
        for(let i = 0, keys = Object.keys(targets), key; key = keys[i]; i++){
          let selected = targets[key]();
          if(selected){
            if(selected.length) selected.forEach((s) => s.dataset.selector = key);
            else selected.dataset.selector = key;
            elements[key] = selected;
          }else{
            if(--retry < 0) return reject(log(`Not found: ${key}, I give up.`));
            log(`Not found: ${key}, retrying... (left ${retry})`);
            return setTimeout(get, 1000, resolve, reject, retry);
          }
        }
        resolve();
      };
      return new Promise(function(resolve, reject){
        get(resolve, reject, retry);
      });
    },
    addStyle: function(name = 'style'){
      if(core.html[name] === undefined) return;
      let style = createElement(core.html[name]());
      document.head.appendChild(style);
      if(elements[name] && elements[name].isConnected) document.head.removeChild(elements[name]);
      elements[name] = style;
    },
    html: {
      style: () => `
        <style type="text/css">
          /* 翻訳方向スイッチボタン */
          [data-selector="exchangeLanguageButton"]{
            border: 1px solid transparent;
            border-radius: 100%;
            width: 36px;
            height: 36px;
          }
          [data-selector="exchangeLanguageButton"][data-translate-back="true"]{
            border: 1px solid rgb(160, 76, 247);
          }
          /* クリッカブル領域を広げる */
          [data-selector="textpanelSource"]{
            cursor: text;
          }
          dummy [data-selector="sourceTextarea"]{
            height: 100% !important;
          }
          /* 往復翻訳処理中 */
          [data-selector="textpanelTargetTextblock"]{
            transition: opacity 125ms;
          }
          [data-selector="textpanelTargetTextblock"][data-status="back"],
          [data-selector="textpanelTargetTextblock"][data-status="go"]{
            animation: ${SCRIPTID}-blink 500ms ease infinite;
          }
          @keyframes ${SCRIPTID}-blink{
              0%{opacity: .250}
            100%{opacity: .125}
          }
        </style>
      `,
    },
  };
  const setTimeout = window.setTimeout, clearTimeout = window.clearTimeout, setInterval = window.setInterval, clearInterval = window.clearInterval, requestAnimationFrame = window.requestAnimationFrame;
  const alert = window.alert, confirm = window.confirm, getComputedStyle = window.getComputedStyle, fetch = window.fetch;
  if(!('isConnected' in Node.prototype)) Object.defineProperty(Node.prototype, 'isConnected', {get: function(){return document.contains(this)}});
  class Storage{
    static key(key){
      return (SCRIPTID) ? (SCRIPTID + '-' + key) : key;
    }
    static save(key, value, expire = null){
      key = Storage.key(key);
      localStorage[key] = JSON.stringify({
        value: value,
        saved: Date.now(),
        expire: expire,
      });
    }
    static read(key){
      key = Storage.key(key);
      if(localStorage[key] === undefined) return undefined;
      let data = JSON.parse(localStorage[key]);
      if(data.value === undefined) return data;
      if(data.expire === undefined) return data;
      if(data.expire === null) return data.value;
      if(data.expire < Date.now()) return localStorage.removeItem(key);
      return data.value;
    }
    static delete(key){
      key = Storage.key(key);
      delete localStorage.removeItem(key);
    }
    static saved(key){
      key = Storage.key(key);
      if(localStorage[key] === undefined) return undefined;
      let data = JSON.parse(localStorage[key]);
      if(data.saved) return data.saved;
      else return undefined;
    }
  }
  const $ = function(s, f){
    let target = document.querySelector(s);
    if(target === null) return null;
    return f ? f(target) : target;
  };
  const $$ = function(s){return document.querySelectorAll(s)};
  const animate = function(callback, ...params){requestAnimationFrame(() => requestAnimationFrame(() => callback(...params)))};
  const wait = function(ms){return new Promise((resolve) => setTimeout(resolve, ms))};
  const createElement = function(html = '<span></span>'){
    let outer = document.createElement('div');
    outer.innerHTML = html;
    return outer.firstElementChild;
  };
  const observe = function(element, callback, options = {childList: true, attributes: false, characterData: false, subtree: false}){
    let observer = new MutationObserver(callback.bind(element));
    observer.observe(element, options);
    return observer;
  };
  const normalize = function(string){
    return string.replace(/[！-～]/g, function(s){
      return String.fromCharCode(s.charCodeAt(0) - 0xFEE0);
    }).replace(normalize.RE, function(s){
      return normalize.KANA[s];
    }).replace(/　/g, ' ').replace(/～/g, '〜');
  };
  normalize.KANA = {
    ｶﾞ:'ガ', ｷﾞ:'ギ', ｸﾞ:'グ', ｹﾞ:'ゲ', ｺﾞ: 'ゴ',
    ｻﾞ:'ザ', ｼﾞ:'ジ', ｽﾞ:'ズ', ｾﾞ:'ゼ', ｿﾞ: 'ゾ',
    ﾀﾞ:'ダ', ﾁﾞ:'ヂ', ﾂﾞ:'ヅ', ﾃﾞ:'デ', ﾄﾞ: 'ド',
    ﾊﾞ:'バ', ﾋﾞ:'ビ', ﾌﾞ:'ブ', ﾍﾞ:'ベ', ﾎﾞ: 'ボ',
    ﾊﾟ:'パ', ﾋﾟ:'ピ', ﾌﾟ:'プ', ﾍﾟ:'ペ', ﾎﾟ: 'ポ',
    ﾜﾞ:'ヷ', ｦﾞ:'ヺ', ｳﾞ:'ヴ',
    ｱ:'ア', ｲ:'イ', ｳ:'ウ', ｴ:'エ', ｵ:'オ',
    ｶ:'カ', ｷ:'キ', ｸ:'ク', ｹ:'ケ', ｺ:'コ',
    ｻ:'サ', ｼ:'シ', ｽ:'ス', ｾ:'セ', ｿ:'ソ',
    ﾀ:'タ', ﾁ:'チ', ﾂ:'ツ', ﾃ:'テ', ﾄ:'ト',
    ﾅ:'ナ', ﾆ:'ニ', ﾇ:'ヌ', ﾈ:'ネ', ﾉ:'ノ',
    ﾊ:'ハ', ﾋ:'ヒ', ﾌ:'フ', ﾍ:'ヘ', ﾎ:'ホ',
    ﾏ:'マ', ﾐ:'ミ', ﾑ:'ム', ﾒ:'メ', ﾓ:'モ',
    ﾔ:'ヤ', ﾕ:'ユ', ﾖ:'ヨ',
    ﾗ:'ラ', ﾘ:'リ', ﾙ:'ル', ﾚ:'レ', ﾛ:'ロ',
    ﾜ:'ワ', ｦ:'ヲ', ﾝ:'ン',
    ｧ:'ァ', ｨ:'ィ', ｩ:'ゥ', ｪ:'ェ', ｫ:'ォ',
    ｯ:'ッ', ｬ:'ャ', ｭ:'ュ', ｮ:'ョ',
    "｡":'。', "､":'、', "ｰ":'ー', "｢":'「', "｣":'」', "･":'・',
  };
  normalize.RE = new RegExp('(' + Object.keys(normalize.KANA).join('|') + ')', 'g');
  const log = function(){
    if(!DEBUG) return;
    let l = log.last = log.now || new Date(), n = log.now = new Date();
    let error = new Error(), line = log.format.getLine(error), callers = log.format.getCallers(error);
    //console.log(error.stack);
    console.log(
      (SCRIPTID || '') + ':',
      /* 00:00:00.000  */ n.toLocaleTimeString() + '.' + n.getTime().toString().slice(-3),
      /* +0.000s       */ '+' + ((n-l)/1000).toFixed(3) + 's',
      /* :00           */ ':' + line,
      /* caller.caller */ (callers[2] ? callers[2] + '() => ' : '') +
      /* caller        */ (callers[1] || '') + '()',
      ...arguments
    );
  };
  log.formats = [{
      name: 'Firefox Scratchpad',
      detector: /MARKER@Scratchpad/,
      getLine: (e) => e.stack.split('\n')[1].match(/([0-9]+):[0-9]+$/)[1],
      getCallers: (e) => e.stack.match(/^[^@]*(?=@)/gm),
    }, {
      name: 'Firefox Console',
      detector: /MARKER@debugger/,
      getLine: (e) => e.stack.split('\n')[1].match(/([0-9]+):[0-9]+$/)[1],
      getCallers: (e) => e.stack.match(/^[^@]*(?=@)/gm),
    }, {
      name: 'Firefox Greasemonkey 3',
      detector: /\/gm_scripts\//,
      getLine: (e) => e.stack.split('\n')[1].match(/([0-9]+):[0-9]+$/)[1],
      getCallers: (e) => e.stack.match(/^[^@]*(?=@)/gm),
    }, {
      name: 'Firefox Greasemonkey 4+',
      detector: /MARKER@user-script:/,
      getLine: (e) => e.stack.split('\n')[1].match(/([0-9]+):[0-9]+$/)[1] - 500,
      getCallers: (e) => e.stack.match(/^[^@]*(?=@)/gm),
    }, {
      name: 'Firefox Tampermonkey',
      detector: /MARKER@moz-extension:/,
      getLine: (e) => e.stack.split('\n')[1].match(/([0-9]+):[0-9]+$/)[1] - 6,
      getCallers: (e) => e.stack.match(/^[^@]*(?=@)/gm),
    }, {
      name: 'Chrome Console',
      detector: /at MARKER \(<anonymous>/,
      getLine: (e) => e.stack.split('\n')[2].match(/([0-9]+):[0-9]+\)?$/)[1],
      getCallers: (e) => e.stack.match(/[^ ]+(?= \(<anonymous>)/gm),
    }, {
      name: 'Chrome Tampermonkey',
      detector: /at MARKER \(chrome-extension:.*?\/userscript.html\?id=/,
      getLine: (e) => e.stack.split('\n')[2].match(/([0-9]+):[0-9]+\)?$/)[1] - 6,
      getCallers: (e) => e.stack.match(/[^ ]+(?= \(chrome-extension:)/gm),
    }, {
      name: 'Chrome Extension',
      detector: /at MARKER \(chrome-extension:/,
      getLine: (e) => e.stack.split('\n')[2].match(/([0-9]+):[0-9]+\)?$/)[1],
      getCallers: (e) => e.stack.match(/[^ ]+(?= \(chrome-extension:)/gm),
    }, {
      name: 'Edge Console',
      detector: /at MARKER \(eval/,
      getLine: (e) => e.stack.split('\n')[2].match(/([0-9]+):[0-9]+\)$/)[1],
      getCallers: (e) => e.stack.match(/[^ ]+(?= \(eval)/gm),
    }, {
      name: 'Edge Tampermonkey',
      detector: /at MARKER \(Function/,
      getLine: (e) => e.stack.split('\n')[2].match(/([0-9]+):[0-9]+\)$/)[1] - 4,
      getCallers: (e) => e.stack.match(/[^ ]+(?= \(Function)/gm),
    }, {
      name: 'Safari',
      detector: /^MARKER$/m,
      getLine: (e) => 0,/*e.lineが用意されているが最終呼び出し位置のみ*/
      getCallers: (e) => e.stack.split('\n'),
    }, {
      name: 'Default',
      detector: /./,
      getLine: (e) => 0,
      getCallers: (e) => [],
    }];
  log.format = log.formats.find(function MARKER(f){
    if(!f.detector.test(new Error().stack)) return false;
    //console.log('////', f.name, 'wants', 0/*line*/, '\n' + new Error().stack);
    return true;
  });
  const time = function(label){
    if(!DEBUG) return;
    const BAR = '|', TOTAL = 100;
    switch(true){
      case(label === undefined):/* time() to output total */
        let total = 0;
        Object.keys(time.records).forEach((label) => total += time.records[label].total);
        Object.keys(time.records).forEach((label) => {
          console.log(
            BAR.repeat((time.records[label].total / total) * TOTAL),
            label + ':',
            (time.records[label].total).toFixed(3) + 'ms',
            '(' + time.records[label].count + ')',
          );
        });
        time.records = {};
        break;
      case(!time.records[label]):/* time('label') to create and start the record */
        time.records[label] = {count: 0, from: performance.now(), total: 0};
        break;
      case(time.records[label].from === null):/* time('label') to re-start the lap */
        time.records[label].from = performance.now();
        break;
      case(0 < time.records[label].from):/* time('label') to add lap time to the record */
        time.records[label].total += performance.now() - time.records[label].from;
        time.records[label].from = null;
        time.records[label].count += 1;
        break;
    }
  };
  time.records = {};
  core.initialize();
  if(window === top && console.timeEnd) console.timeEnd(SCRIPTID);
})();

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