9、electron子窗口向父窗口传递参数

主要用到了js 里面的 window.opener.postMessage(); 在html页可以直接运行，跟electron没有直接关系

1、新建父窗口页“06父窗口接收子窗口.html”

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <meta http-equiv="X-UA-Compatible" content="IE=edge">
 6     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 7     <title>Document</title>
 8 </head>
 9 <body>
10    <input type="button" id="btn" value="打开子窗口" />
11    <span id="txt"></span>
12    <script>
13     let btn = document.getElementById("btn");
14     btn.onclick = (e)=>{
15         window.open('./06子窗口向父窗口传参数.html');
16     }
17 
18     window.addEventListener('message',(msg)=>{     //监听子窗口传递过来的参数
19         let txt = document.getElementById("txt");
20         //txt.innerHTML = JSON.stringify(msg);
21         txt.innerHTML = msg.data;   //展示传递过来的信息
22     })
23    </script>
24 </body>
25 </html>

View Code

2、新建子窗口页“06子窗口向父窗口传参数.html”

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <meta http-equiv="X-UA-Compatible" content="IE=edge">
 6     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 7     <title>Document</title>
 8 </head>
 9 <body>
10     <h1>子窗口用来向父窗口传递参数</h1>
11     <input type="button" id="btn" value="向父窗口传递信息" />
12     <script>
13         let btn = document.getElementById("btn");
14         btn.onclick = (e)=>{
15             window.opener.postMessage('子窗口传递过来的参数');   //传递参数
16         }
17     </script>
18 </body>
19 </html>