Electron通过 BrowserWindow 和 webContents 模块实现渲染进 程和渲染进程的通信

var {ipcMain,BrowserWindow} =require(‘electron‘);


var path=require(‘path‘);

var win=null;

//接收到广播
ipcMain.on(‘openWindow‘,function(event,aid){
        


    //调用 BrowserWindow打开新窗口
    win=new BrowserWindow({

        width:400,
        height:300,
        webPreferences:{
            nodeIntegration: true
        }
    })
    win.loadURL(path.join(‘file:‘,__dirname,‘../news.html‘));
    
    //开启新窗口的调试模式
    win.webContents.openDevTools();


    //通过win.webContents.send把当前数据广播给 news进程

    win.webContents.on(‘did-finish-load‘,function(){

        win.webContents.send(‘toNews‘,aid);
    })






    win.on(‘closed‘,()=>{

        win=null;
    })


})

//获取localStorage的数据
var {ipcRenderer} =require(‘electron‘);


ipcRenderer.on(‘toNews‘,function(event,aid){

    console.log(aid);
})

var {ipcRenderer} =require(‘electron‘);



var btn=document.querySelector(‘#btn‘);

//渲染进程没法直接调用主进程中的模块，但是我们可以通过 electron中的remote模块间接的调用主进程中的模块


btn.onclick=function(){
    // alert(‘点击了‘);



    var aid=‘123456‘;

    ipcRenderer.send(‘openWindow‘,aid);



}

DOCTYPE html>
html lang="en">
head>
    meta charset="UTF-8">
    meta name="viewport" content="width=device-width, initial-scale=1.0">
    meta http-equiv="X-UA-Compatible" content="ie=edge">
    title>Documenttitle>
    style>
    
        body{
            background: orange;
        }
    style>
    
head>
body>
   news页面

    br>

    哈哈哈

    script src="renderer/news.js">script>   
body>
html>

DOCTYPE html>
html lang="en">
head>
    meta charset="UTF-8">
    meta name="viewport" content="width=device-width, initial-scale=1.0">
    meta http-equiv="X-UA-Compatible" content="ie=edge">
    title>Documenttitle>

    style>    
        .content{

            width: 100%;

            height: 400px;

            background: orange;


            overflow-y: auto;
        }
    style>
  
head>
body>
       
    button id="btn">
        打开新窗口
    button>
    

    script src="renderer/openWindow.js">script>   

body>
html>