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main.js
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main.js
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const electron = require('electron'); // eslint-disable-line
// Module to control application life.
const {
app,
BrowserWindow,
ipcMain,
} = electron;
// Developer Dependencies.
const isDev = !app.isPackaged;
if (isDev) {
require('electron-debug')(); // eslint-disable-line
}
// Additional Tooling.
const path = require('path');
// Import the functions that we can use in the render processes.
const electronForce = require('./src/electronForce');
// Get rid of the deprecated default.
app.allowRendererProcessReuse = true;
// 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 mainWindow;
// Create the main application window.
function createMainWindow() {
const display = electron.screen.getPrimaryDisplay();
// Create the browser window.
mainWindow = new BrowserWindow({
width: display.workArea.width,
height: display.workArea.height,
frame: true,
webPreferences: {
devTools: isDev,
nodeIntegration: false, // Disable nodeIntegration for security.
nodeIntegrationInWorker: false,
nodeIntegrationInSubFrames: false,
contextIsolation: true, // Enabling contextIsolation to protect against prototype pollution.
worldSafeExecuteJavaScript: true, // https://github.com/electron/electron/pull/24712
enableRemoteModule: false, // Turn off remote to avoid temptation.
preload: path.join(app.getAppPath(), 'app/preload.js'),
},
});
// and load the index.html of the app.
mainWindow.loadURL(`file://${__dirname}/app/index.html`);
// Attach to ElectronForce handlers.
electronForce.setWindow(mainWindow);
// Emitted when the window is closed.
mainWindow.on('closed', () => {
// Dereference the window object, usually you would store windows
// in an array if your app supports multi windows, this is the time
// when you should delete the corresponding element.
mainWindow = null;
});
}
// 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', createMainWindow);
// Quit when all windows are closed.
app.on('window-all-closed', () => {
// 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();
}
});
// Extra security filters.
// See also: https://github.com/reZach/secure-electron-template
app.on('web-contents-created', (event, contents) => {
// Block navigation.
// https://electronjs.org/docs/tutorial/security#12-disable-or-limit-navigation
contents.on('will-navigate', (navevent) => {
navevent.preventDefault();
});
contents.on('will-redirect', (navevent) => {
navevent.preventDefault();
});
// https://electronjs.org/docs/tutorial/security#11-verify-webview-options-before-creation
contents.on('will-attach-webview', (webevent, webPreferences) => {
// Strip away preload scripts if unused or verify their location is legitimate
delete webPreferences.preload;
delete webPreferences.preloadURL;
// Disable Node.js integration
webPreferences.nodeIntegration = false;
});
// Block new windows from within the App
// https://electronjs.org/docs/tutorial/security#13-disable-or-limit-creation-of-new-windows
contents.on('new-window', async (newevent) => {
newevent.preventDefault();
});
});
app.on('activate', () => {
// 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 (mainWindow === null) {
createMainWindow();
}
});
// Add the list of handlers provided in the ElectronForce.handlers library.
const efHandlers = Object.getOwnPropertyNames(electronForce.handlers);
efHandlers.forEach((value) => {
ipcMain.on(value, electronForce.handlers[value]);
});