added --hidden startup option (fixes #488)

app/lib/app.ts

@@ -1,6 +1,6 @@
 import { app, ipcMain, Menu, Tray, shell } from 'electron'
 import { loadConfig } from './config'
-import { Window } from './window'
+import { Window, WindowOptions } from './window'
 
 export class Application {
     private tray: Tray
@@ -20,8 +20,8 @@ export class Application {
         app.commandLine.appendSwitch('disable-http-cache')
     }
 
-    async newWindow (): Promise<Window> {
-        let window = new Window()
+    async newWindow (options?: WindowOptions): Promise<Window> {
+        let window = new Window(options)
         this.windows.push(window)
         window.visible$.subscribe(visible => {
             if (visible) {

app/lib/cli.ts

@@ -28,6 +28,10 @@ export function parseArgs (argv, cwd) {
             describe: 'Show DevTools on start',
             type: 'boolean'
         })
+        .option('hidden', {
+            describe: 'Start minimized',
+            type: 'boolean'
+        })
         .option('version', {
             alias: 'v',
             describe: 'Show version and exit',

app/lib/index.ts

@@ -59,5 +59,5 @@ app.on('ready', () => {
             }
         ]))
     }
-    application.newWindow()
+    application.newWindow({ hidden: argv.hidden })
 })

app/lib/window.ts

@@ -14,6 +14,10 @@ if (process.platform === 'win32') {
     DwmEnableBlurBehindWindow = require('windows-blurbehind').DwmEnableBlurBehindWindow
 }
 
+export interface WindowOptions {
+    hidden?: boolean
+}
+
 export class Window {
     ready: Promise<void>
     private visible = new Subject<boolean>()
@@ -23,14 +27,16 @@ export class Window {
 
     get visible$ (): Observable<boolean> { return this.visible }
 
-    constructor () {
+    constructor (options?: WindowOptions) {
         let configData = loadConfig()
 
+        options = options || {}
+
         this.windowConfig = new ElectronConfig({ name: 'window' })
         this.windowBounds = this.windowConfig.get('windowBoundaries')
 
         let maximized = this.windowConfig.get('maximized')
-        let options: Electron.BrowserWindowConstructorOptions = {
+        let bwOptions: Electron.BrowserWindowConstructorOptions = {
             width: 800,
             height: 600,
             title: 'Terminus',
@@ -41,33 +47,36 @@ export class Window {
             show: false,
             backgroundColor: '#00000000'
         }
-        Object.assign(options, this.windowBounds)
+        Object.assign(bwOptions, this.windowBounds)
 
         if ((configData.appearance || {}).frame === 'native') {
-            options.frame = true
+            bwOptions.frame = true
         } else {
             if (process.platform === 'darwin') {
-                options.titleBarStyle = 'hiddenInset'
+                bwOptions.titleBarStyle = 'hiddenInset'
             }
         }
 
         if (process.platform === 'linux') {
-            options.backgroundColor = '#131d27'
+            bwOptions.backgroundColor = '#131d27'
         }
 
-        this.window = new BrowserWindow(options)
+        this.window = new BrowserWindow(bwOptions)
         this.window.once('ready-to-show', () => {
             if (process.platform === 'darwin') {
                 this.window.setVibrancy('dark')
             } else if (process.platform === 'win32' && (configData.appearance || {}).vibrancy) {
                 this.setVibrancy(true)
             }
-            if (maximized) {
-                this.window.maximize()
-            } else {
-                this.window.show()
+
+            if (!options.hidden) {
+                if (maximized) {
+                    this.window.maximize()
+                } else {
+                    this.window.show()
+                }
+                this.window.focus()
             }
-            this.window.focus()
         })
         this.window.loadURL(`file://${app.getAppPath()}/dist/index.html?${this.window.id}`, { extraHeaders: 'pragma: no-cache\n' })