From 2ae409e1f2622b509703ed814d3aa8f4e136d09a Mon Sep 17 00:00:00 2001
From: Stefan Malzner <stefan@adlk.io>
Date: Mon, 23 Oct 2017 15:23:26 +0200
Subject: fix(App): Force Franz to use single window

Fixes #29
---
 src/index.js | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'src/index.js')

diff --git a/src/index.js b/src/index.js
index e7fa7da6d..b07666ba2 100644
--- a/src/index.js
+++ b/src/index.js
@@ -18,7 +18,6 @@ import './electron/exception';
 // 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;
-const settings = new Settings();
 let willQuitApp = false;
 
 // Ensure that the recipe directory exists
@@ -29,6 +28,21 @@ if (isWindows) {
   app.setAppUserModelId(appId);
 }
 
+// Force single window
+const isSecondInstance = app.makeSingleInstance(() => {
+  if (mainWindow) {
+    if (mainWindow.isMinimized()) mainWindow.restore();
+    mainWindow.focus();
+  }
+});
+
+if (isSecondInstance) {
+  app.quit();
+}
+
+// Initialize Settings
+const settings = new Settings();
+
 const createWindow = async () => {
   // Remember window size
   const mainWindowState = windowStateKeeper({
-- 
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