Added Application Menu for macOS (#19)

index.js

@@ -1,5 +1,6 @@
 // Requirements
 const {app, BrowserWindow, ipcMain} = require('electron')
+const Menu                          = require('electron').Menu
 const autoUpdater                   = require('electron-updater').autoUpdater
 const ejse                          = require('ejs-electron')
 const fs                            = require('fs')
@@ -123,6 +124,70 @@ function createWindow() {
     })
 }
 
+function createMenu() {
+    
+    if(process.platform === 'darwin') {
+
+        // Extend default included application menu to continue support for quit keyboard shortcut
+        let applicationSubMenu = {
+            label: 'Application',
+            submenu: [{
+                label: 'About Application',
+                selector: 'orderFrontStandardAboutPanel:'
+            }, {
+                type: 'separator'
+            }, {
+                label: 'Quit',
+                accelerator: 'Command+Q',
+                click: () => {
+                    app.quit()
+                }
+            }]
+        }
+
+        // New edit menu adds support for text-editing keyboard shortcuts
+        let editSubMenu = {
+            label: 'Edit',
+            submenu: [{
+                label: 'Undo',
+                accelerator: 'CmdOrCtrl+Z',
+                selector: 'undo:'
+            }, {
+                label: 'Redo',
+                accelerator: 'Shift+CmdOrCtrl+Z',
+                selector: 'redo:'
+            }, {
+                type: 'separator'
+            }, {
+                label: 'Cut',
+                accelerator: 'CmdOrCtrl+X',
+                selector: 'cut:'
+            }, {
+                label: 'Copy',
+                accelerator: 'CmdOrCtrl+C',
+                selector: 'copy:'
+            }, {
+                label: 'Paste',
+                accelerator: 'CmdOrCtrl+V',
+                selector: 'paste:'
+            }, {
+                label: 'Select All',
+                accelerator: 'CmdOrCtrl+A',
+                selector: 'selectAll:'
+            }]
+        }
+
+        // Bundle submenus into a single template and build a menu object with it
+        let menuTemplate = [applicationSubMenu, editSubMenu]
+        let menuObject = Menu.buildFromTemplate(menuTemplate)
+
+        // Assign it to the application
+        Menu.setApplicationMenu(menuObject)
+
+    }
+
+}
+
 function getPlatformIcon(filename){
     const opSys = process.platform
     if (opSys === 'darwin') {
@@ -137,6 +202,7 @@ function getPlatformIcon(filename){
 }
 
 app.on('ready', createWindow)
+app.on('ready', createMenu)
 
 app.on('window-all-closed', () => {
     // On macOS it is common for applications and their menu bar