如何在Electron中打开新窗口代替当前窗口

Question

当我点击一个按钮时,我可以打开一个新窗口,但是,它是一个新的弹出窗口.如何打开新窗口代替主窗口？

var app = require('app')
var BrowserWindow = require('browser-window')
var ipc = require('ipc')

app.on('ready', function () {
    var mainWindow = new BrowserWindow ({
        width: 800,
        height: 600
    })
    mainWindow.loadURL('file://' + __dirname + '/main.html')
    //mainWindow.openDevTools() //opens inspect console

    var prefsWindow = new BrowserWindow ({
        width: 400,
        height: 400,
        show: false
    })
    prefsWindow.loadURL('file://' + __dirname + '/prefs.html')

使用上面的代码,会弹出一个新窗口.我附上了截图,以显示我的意思.

弹出窗口

而不是那个弹出窗口,我希望'prefs'替换主窗口(以及其他选项,以替换主窗口一旦添加).

Answer 1

只需将prefs.html加载到mainWindow中,而不是创建新窗口.您的旧内容(main.html)将在没有额外的窗口打开的情况下被替换.

当相应的按钮放在main.html内时,您需要通过ipc远程模块应用此加载.

按照电子0.35.0及以上版本的SO答案:

// In main process.
const ipcMain = require('electron').ipcMain;

// in main process, outside of app.on:
ipc.on('load-page', (event, arg) => {
    mainWindow.loadURL(arg);
});

// In renderer process (web page).
const ipc = require('electron').ipcRenderer;

然后可以按如下方式执行加载新页面:

ipc.send('load-page', 'file://' + __dirname + '/prefs.html');

Answer 2

如果有人感兴趣，这就是我所做的。

假设我已经login form登录，并且在登录后我想显示将发生事情的主窗口。

设置你的index.js

const electron = require('electron');
const url = require('url');
const path = require('path');

const { app, BrowserWindow } = electron;

let loginWindow;
var mainIndex = '../../index.html'; //the login window
var directoryHtml = '../html/'; //directory of where my html file is, the main window is here except the login window
var iconPath = '../../images/logo.png'; //replace with your own logo
let { ipcMain } = electron;
var newWindow = null;

app.on('ready', function () {
    loginWindow = new BrowserWindow({//1. create new Window
        height: 600, width: 450,
        minHeight: 600, minWidth: 450, //set the minimum height and width
        icon: __dirname + iconPath,
        frame: false, //I had my own style of title bar, so I don't want to show the default
        backgroundColor: '#68b7ad', //I had to set back color to window in case the white screen show up
        show: false //to prevent the white screen when loading the window, lets not show it first
    });

    loginWindow.loadURL(url.format({ //2. Load HTML into Window
        pathname: path.join(__dirname, mainIndex),
        protocol: 'file',
        slashes: true
    }));

    loginWindow.once('ready-to-show', () => {
        loginWindow.show() //to prevent the white screen when loading the window, lets show it when it is ready
    })
});

//dynamically resize window when this function is called
ipcMain.on('resize', function (e, x, y) {
    loginWindow.setSize(x, y);
}); 

/** start of showing new window and close the login window **/
ipcMain.on('newWindow', function (e, filenName) {

    if(newWindow){
        newWindow.focus(); //focus to new window
        return;
    }

    newWindow = new BrowserWindow({//1. create new Window
        height: 600, width: 800,
        minHeight: 600, minWidth: 800,
        icon: __dirname + iconPath,
        frame: false,
        backgroundColor: '#68b7ad',
        show: false
    }); 

    newWindow.loadURL(url.format({ //2. Load HTML into new Window
        pathname: path.join(__dirname, directoryHtml + filenName),
        protocol: 'file',
        slashes: true
    }));

    newWindow.once('ready-to-show', () => { //when the new window is ready, show it up
        newWindow.show()
    })

    newWindow.on('closed', function() { //set new window to null when we're done
        newWindow = null
    })

    loginWindow.close(); //close the login window(the first window)
});
/** end of showing new window and closing the old one **/

app.on('closed', function () {
    loginWindow = null;
});

// Quit when all windows are closed.
app.on('window-all-closed', function () {
    // On OS X it is common for applications and their menu bar
    // to stay active until the user quits explicitly with Cmd + Q
    if (process.platform !== 'darwin') {
        app.quit()
    }
})

app.on('activate', function () {
    // On OS X it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (loginWindow === null) {
        createWindow()
    }
})

索引.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>Login Window</title>
</head>

<body>
    <h1>Login</h1>
    <!-- . . . . -->
    <button id="btn-login" onclick="loginNow()"></button>
    <!-- . . . . -->
    <script>
        function loginNow(){
            //.....
            //assuming the authentication is valid, we want to show now the new window which will be our main window
            const { ipcRenderer } = require('electron'); //require electron

            //using ipcRenderer, let's call the function in index.js where the function name is `newWindow`, 
            //the `main.html` is the new html file I want to show, use your own.
            ipcRenderer.send('newWindow','main.html'); 
        }
    </script>
</body>

</html>

我不知道这是否是正确的方法，我也不知道这样做有什么缺点，但我希望没有。希望这对某人有帮助。

Answer 3

你有几个选择。

您可以调用prefsWindow.focus()以确保第二个窗口位于第一个窗口的顶部。

mainWindow.hide()您可以使用或隐藏或关闭主窗口mainWindow.destroy()，只保留第二个窗口打开。完成后重新打开它。

或者，您可以将首选项页面加载到第一个窗口中，而不是使用两个窗口，然后返回主页。