background.js

'use strict'
import { app, protocol, BrowserWindow } from 'electron'
import {
    createProtocol
    /* installVueDevtools */
} from 'vue-cli-plugin-electron-builder/lib'
const isDevelopment = process.env.NODE_ENV !== 'production'
    // Keep a global reference of the window object, if you don't, the window will
    // be closed automatically when the JavaScript object is garbage collected.
let win
    // Scheme must be registered before the app is ready
protocol.registerSchemesAsPrivileged([{ scheme: 'app', privileges: { secure: true, standard: true } }])

function createWindow() {
    // Create the browser window.
    win = new BrowserWindow({
        width: 800,
        height: 600,
        webPreferences: {
            // Use pluginOptions.nodeIntegration, leave this alone
            // See nklayman.github.io/vue-cli-plugin-electron-builder/guide/security.html#node-integration for more info
            nodeIntegration: process.env.ELECTRON_NODE_INTEGRATION
        }
    })
    if (process.env.WEBPACK_DEV_SERVER_URL) {
        // Load the url of the dev server if in development mode
        win.loadURL(process.env.WEBPACK_DEV_SERVER_URL)
        if (!process.env.IS_TEST) win.webContents.openDevTools()
    } else {
        createProtocol('app')
            // Load the index.html when not in development
        win.loadURL('app://./index.html')
    }
    win.on('closed', () => {
        win = null
    })
}
// Quit when all windows are closed.
app.on('window-all-closed', () => {
    // On macOS 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', () => {
        // On macOS 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 (win === null) {
            createWindow()
        }
    })
    // This method will be called when Electron has finished
    // initialization and is ready to create browser windows.
    // Some APIs can only be used after this event occurs.
app.on('ready', async() => {
        if (isDevelopment && !process.env.IS_TEST) {
            // Install Vue Devtools
            // Devtools extensions are broken in Electron 6.0.0 and greater
            // See https://github.com/nklayman/vue-cli-plugin-electron-builder/issues/378 for more info
            // Electron will not launch with Devtools extensions installed on Windows 10 with dark mode
            // If you are not using Windows 10 dark mode, you may uncomment these lines
            // In addition, if the linked issue is closed, you can upgrade electron and uncomment these lines
            // try {
            //   await installVueDevtools()
            // } catch (e) {
            //   console.error('Vue Devtools failed to install:', e.toString())
            // }
        }
        createWindow()
    })
    // Exit cleanly on request from parent process in development mode.
if (isDevelopment) {
    if (process.platform === 'win32') {
        process.on('message', data => {
            if (data === 'graceful-exit') {
                app.quit()
            }
        })
    } else {
        process.on('SIGTERM', () => {
            app.quit()
        })
    }
}