Fixed multiple instances of RPS RPS-16

electron/main.js

@@ -95,7 +95,6 @@ var menu = Menu.buildFromTemplate([
 let mainWindow;
 let tray = null;
 function createWindow() {
-  makeSingleInstance();
   // Create the browser window.
   Menu.setApplicationMenu(menu);
   mainWindow = new BrowserWindow({
@@ -112,44 +111,62 @@ function createWindow() {
       preload: path.join(__dirname, "preload.js"), // use a preload script
     },
   });
-  // and load the index.html of the app.
-  // win.loadFile("index.html");
-  mainWindow.loadURL(
-    isDev
-      ? "http://localhost:3000"
-      : `file://${path.join(__dirname, "/../build/index.html")}`
-  );
 
-  // mainWindow.on("close", function (event) {
-  //   event.preventDefault();
-  //   mainWindow.hide();
-  //   tray = createTray();
-  // });
-
-  mainWindow.on("minimize", function (event) {
-    event.preventDefault();
-    mainWindow.hide();
-    tray = createTray();
-  });
-
-  ipcMain.on(ipcTypes.quit, (event, arg) => {
-    app.isQuiting = true;
+  const gotTheLock = app.requestSingleInstanceLock();
+  if (!gotTheLock) {
     app.quit();
-  });
+  } else {
+    app.on("second-instance", (event, commandLine, workingDirectory) => {
+      // Someone tried to run a second instance, we should focus our window.
+      if (mainWindow) {
+        if (mainWindow.isMinimized()) mainWindow.restore();
+        mainWindow.focus();
+      }
+    });
 
-  // Open the DevTools.
-  if (isDev) {
-    mainWindow.webContents.openDevTools({
-      // mode: "detach"
+    // and load the index.html of the app.
+    // win.loadFile("index.html");
+    mainWindow.loadURL(
+      isDev
+        ? "http://localhost:3000"
+        : `file://${path.join(__dirname, "/../build/index.html")}`
+    );
+
+    // mainWindow.on("close", function (event) {
+    //   event.preventDefault();
+    //   mainWindow.hide();
+    //   if (!tray) {
+    //     tray = createTray();
+    //   }
+    // });
+
+    mainWindow.on("minimize", function (event) {
+      event.preventDefault();
+      mainWindow.hide();
+      if (!tray) {
+        tray = createTray();
+      }
+    });
+
+    ipcMain.on(ipcTypes.quit, (event, arg) => {
+      app.isQuiting = true;
+      app.quit();
+    });
+
+    // Open the DevTools.
+    if (isDev) {
+      mainWindow.webContents.openDevTools({
+        // mode: "detach"
+      });
+    }
+
+    mainWindow.maximize();
+    autoUpdater.checkForUpdatesAndNotify();
+
+    globalShortcut.register("CommandOrControl+Shift+I", () => {
+      mainWindow.webContents.toggleDevTools();
     });
   }
-
-  mainWindow.maximize();
-  autoUpdater.checkForUpdatesAndNotify();
-
-  globalShortcut.register("CommandOrControl+Shift+I", () => {
-    mainWindow.webContents.toggleDevTools();
-  });
 }
 
 exports.mainWindow = mainWindow;
@@ -192,21 +209,6 @@ app.on("activate", () => {
   }
 });
 
-// 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.
-function makeSingleInstance() {
-  if (process.mas) return;
-
-  app.requestSingleInstanceLock();
-
-  app.on("second-instance", () => {
-    if (mainWindow) {
-      if (mainWindow.isMinimized()) mainWindow.restore();
-      mainWindow.focus();
-    }
-  });
-}
-
 function createTray() {
   let appIcon = new Tray(path.join(__dirname, "../src/assets/logo192.png"));
   const contextMenu = Menu.buildFromTemplate([