myApp/preload.js

const { contextBridge, ipcRenderer } = require('electron');

contextBridge.exposeInMainWorld('electronAPI', {
  openWindow: (msg) => ipcRenderer.send('openWindow', msg),
  closeAllWindow: (msg) => ipcRenderer.send('window-all-closed', msg),
  getData: (msg) => ipcRenderer.send('getData', msg),
  postData: (msg) => ipcRenderer.send('postData', msg),
  setProxy: (msg) => ipcRenderer.send('setProxy', msg),
  addPreLoadCode: (msg) => ipcRenderer.send('addPreLoadCode', msg),
  setStoData: (msg) => ipcRenderer.send('setStoData', msg),
  getStoData: (msg) => ipcRenderer.send('getStoData', msg),
  openWindow: (msg) => ipcRenderer.send('openWindow', msg),
  closeWindow: (msg) => ipcRenderer.send('closeWindow', msg),
  changeProxy: (msg) => ipcRenderer.send('changeProxy', msg),
  readConfig: (msg) => ipcRenderer.send('readConfig', msg),
  saveConfig: (msg) => ipcRenderer.send('saveConfig', msg),
  setMaxWindowOpenNum: (msg) => ipcRenderer.send('setMaxWindowOpenNum', msg),
  readdir: (msg) => ipcRenderer.send('readdir', msg),
  download: (msg) => ipcRenderer.send('download', msg),
  broadcast: (msg) => ipcRenderer.send('broadcast-message', msg),
  onBroadcast: (callback) => ipcRenderer.on('message-broadcast', (event, data) => callback(data)),
});


document.addEventListener('click', function (e) {
  if (e.target.tagName === 'A' && e.target.href) {
    e.preventDefault();
    window.location.href = e.target.href;
  }
});


window.lastText = ''
setInterval(() => {
  // 快手
  if (document.querySelectorAll('.virt-list__client .comment-cell')[0]) {
    let nowMessage = document.querySelectorAll('.virt-list__client .comment-cell')[document.querySelectorAll('.virt-list__client .comment-cell').length - 1]
    let nowText = nowMessage.querySelector('.comment').innerText
    if (window.lastText !==  nowText) {
        window.lastText =  nowText
        console.log(nowText)
        ipcRenderer.send('broadcast-message', nowText)
    }
  }
  // 抖音
  if (document.querySelectorAll('.TNg5meqw')[0]) {
    let nowMessage = document.querySelectorAll('.TNg5meqw')[document.querySelectorAll('.TNg5meqw').length - 1]
    let nowText = nowMessage.innerText
    if (window.lastText !==  nowText) {
        window.lastText =  nowText
        console.log(nowText)
        ipcRenderer.send('broadcast-message', nowText)
    }
  }
}, 1000);

// 拦截请求
// (function(xhr) {

//   var XHR = XMLHttpRequest.prototype;

//   var open = XHR.open;
//   var send = XHR.send;
//   var setRequestHeader = XHR.setRequestHeader;

//   XHR.open = function(method, url) {
//       this._method = method;
//       this._url = url;
//       this._requestHeaders = {};
//       this._startTime = (new Date()).toISOString();

//       return open.apply(this, arguments);
//   };

//   XHR.setRequestHeader = function(header, value) {
//       this._requestHeaders[header] = value;
//       return setRequestHeader.apply(this, arguments);
//   };

//   XHR.send = function(postData) {
//       this.addEventListener('load', function() {
//           var endTime = (new Date()).toISOString();

//           var myUrl = this._url ? this._url.toLowerCase() : this._url;
//           if(myUrl) {

//               if (postData) {
//                   if (typeof postData === 'string') {
//                       try {
//                           // here you get the REQUEST HEADERS, in JSON format, so you can also use JSON.parse
//                           this._requestHeaders = postData;    
//                       } catch(err) {
//                           console.log('Request Header JSON decode failed, transfer_encoding field could be base64');
//                           console.log(err);
//                       }
//                   } else if (typeof postData === 'object' || typeof postData === 'array' || typeof postData === 'number' || typeof postData === 'boolean') {
//                           // do something if you need
//                   }
//               }

//               // here you get the RESPONSE HEADERS
//               var responseHeaders = this.getAllResponseHeaders();

//               if ( this.responseType != 'blob' && this.responseText) {
//                   // responseText is string or null
//                   try {

//                       // here you get RESPONSE TEXT (BODY), in JSON format, so you can use JSON.parse
//                       var arr = this.responseText;

//                       // printing url, request headers, response headers, response body, to console

//                       // console.log(this._url);
//                       // console.log(JSON.parse(this._requestHeaders));
//                       // console.log(responseHeaders);
//                       // console.log(myUrl);                        
//                       if (window.owoHackUrl) {
//                           for (const key in window.owoHackUrl) {
//                               if (Object.hasOwnProperty.call(window.owoHackUrl, key)) {
//                                   const element = window.owoHackUrl[key];
//                                   if (myUrl.includes(key)) {
//                                       if (element) element(arr)
//                                   }
//                               }
//                           }
//                       }
//                       if (window.owoHackUrlSend) {
//                           for (const key in window.owoHackUrlSend) {
//                               if (Object.hasOwnProperty.call(window.owoHackUrlSend, key)) {
//                                   const element = window.owoHackUrlSend[key];
//                                   if (myUrl.includes(key)) {
//                                       if (element) element(postData, myUrl)
//                                   }
//                               }
//                           }
//                       }
//                   } catch(err) {
//                       console.log("Error in responseType try catch");
//                       console.log(err);
//                   }
//               }

//           }
//       });

//       return send.apply(this, arguments);
//   };

// })(XMLHttpRequest);