自动语音提醒进入斗鱼房间的观众

Douyu.welcome-reminding.js

javascript: void ((function () {
  /**
   * 功能：斗鱼自动弹幕语音朗读
   * 用法：需要[制作成 Chrome 书签](http://pan.baidu.com/s/1skgEosX)
   * 版本：v2.0.0
   * 日期：2017年12月30日 17:28:17
   * 更新：2018年12月31日 16:32:25
   */
  const speaker = (word, rate = 1) => {
    if (word !== '') {
      let utt = new SpeechSynthesisUtterance(word);
      utt.lang = 'zh-CN';
      utt.rate = rate;
      utt.volume = 0.5;
      utt.onerror = (e) => {
        console.log('__xx__fishfork__welcomReminding', e);
      };
      window.speechSynthesis.speak(utt);
    }
  };

  const $ = ( selector, doc = document) => doc.querySelector( selector );

  const getText = ( $el )=>{
    if ($el) {
      return $el.textContent.trim();
    }
    return '';
  };

  const getInnerText = ( $el )=>{
    if ($el) {
      return $el.innerText.trim();
    }
    return '';
  };

  const $cont = $('#js-barrage-list');

  const getUserMsg = ($el) => {
    const $msg = $('.Barrage-content', $el);
    return getText($msg);
  };

  /* 清除事件，避免重复绑定 */
  $cont.removeEventListener("DOMNodeInserted", window.__xx__fishfork__welcomReminding, false);

  window.__xx__fishfork__welcomReminding = (e) => {
    const msg = getUserMsg(e.target);
    if (msg) { /* 弹幕朗读 */
      speaker(msg, 1.3);
    }
    else{
      if( $('.Barrage-text', e.target) ) { /* 进入房间提醒 */
        speaker(getInnerText(e.target), 1.8);
      }
    }
  };

  $cont.addEventListener("DOMNodeInserted", window.__xx__fishfork__welcomReminding, false);
})());

👍