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main.js
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main.js
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"use strict";
/*------------------------------------------------------------------------------
* Copyright (c) 2019 Sagar Gurtu
* Licensed under the MIT License.
* See License in the project root for license information.
*----------------------------------------------------------------------------*/
const { app, BrowserWindow, Menu, ipcMain } = require('electron');
const { buildMenuTemplate } = require('./menutemplate');
// 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, aboutWin;
function createWindow() {
// Create the browser window.
win = new BrowserWindow({
width: 800,
height: 600,
minWidth: 300,
minHeight: 300,
icon: './src/assets/images/logo.png',
webPreferences: {
plugins: true,
nodeIntegration: true
},
frame: false
});
// and load the index.html of the app.
win.loadFile('./src/index.html');
// Emitted when the window is closed.
win.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.
win = null;
aboutWin = null;
});
// Create a menu using template
const menu = Menu.buildFromTemplate(buildMenuTemplate(win));
// Create about window
menu.getMenuItemById('about').click = () => {
if (!aboutWin) {
aboutWin = new BrowserWindow({
width: 300,
height: 150,
resizable: false,
frame: false,
parent: win,
modal: true,
webPreferences: {
nodeIntegration: true
},
});
aboutWin.loadFile('./src/about.html');
aboutWin.on('closed', () => {
aboutWin = null;
})
}
};
// Set application menu
Menu.setApplicationMenu(menu);
// Add event listener for enabling/disabling menu items
ipcMain.on('toggle-menu-items', (event, flag) => {
menu.getMenuItemById('file-print').enabled = flag;
menu.getMenuItemById('file-properties').enabled = flag;
menu.getMenuItemById('file-close').enabled = flag;
menu.getMenuItemById('view-fullscreen').enabled = flag;
});
}
// Allow only a single instance of the app
const gotTheLock = app.requestSingleInstanceLock();
if (!gotTheLock) {
app.quit();
} else {
app.on('second-instance', (event, commandLine) => {
// Someone tried to run a second instance, we should focus our window.
if (win) {
if (win.isMinimized()) {
win.restore();
}
win.focus();
win.webContents.send('external-file-open', commandLine);
}
});
// 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', createWindow);
// 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();
}
});
}
// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.