[MM 19649] Fix blank window when auto-starting the app on login (#1106)

* Windows: fix hidden/shown/maximized window on start

* allow for some overlap with the top/left edge of the screen before resetting

* support maximizing directly from app tray icon after initial startup

* inline comments

* alternative to prevent minimize effect on startup

* default hideOnStartup to false

* update comment

src/main.js

@@ -544,6 +544,7 @@ function initializeAfterAppReady() {
 
   mainWindow = createMainWindow(config.data, {
     hideOnStartup,
+    trayIconShown: process.platform === 'win32' || config.showTrayIcon,
     linuxAppIcon: path.join(assetsDir, 'appicon.png'),
     deeplinkingUrl,
   });

src/main/Validator.js

@@ -8,6 +8,8 @@ const defaultOptions = {
   stripUnknown: true,
 };
 
+const defaultMinWindowXPos = -100;
+const defaultMinWindowYPos = -100;
 const defaultWindowWidth = 1000;
 const defaultWindowHeight = 700;
 const minWindowWidth = 400;
@@ -23,8 +25,8 @@ const argsSchema = Joi.object({
 });
 
 const boundsInfoSchema = Joi.object({
-  x: Joi.number().integer().min(0),
-  y: Joi.number().integer().min(0),
+  x: Joi.number().integer().min(defaultMinWindowXPos).default(0),
+  y: Joi.number().integer().min(defaultMinWindowYPos).default(0),
   width: Joi.number().integer().min(minWindowWidth).required().default(defaultWindowWidth),
   height: Joi.number().integer().min(minWindowHeight).required().default(defaultWindowHeight),
   maximized: Joi.boolean().default(false),

src/main/mainWindow.js

@@ -39,13 +39,16 @@ function createMainWindow(config, options) {
     windowOptions = {width: defaultWindowWidth, height: defaultWindowHeight};
   }
 
+  const {hideOnStartup, trayIconShown} = options;
+  const {maximized: windowIsMaximized} = windowOptions;
+
   if (process.platform === 'linux') {
     windowOptions.icon = options.linuxAppIcon;
   }
   Object.assign(windowOptions, {
     title: app.getName(),
     fullscreenable: true,
-    show: false,
+    show: hideOnStartup || false,
     minWidth: minimumWindowWidth,
     minHeight: minimumWindowHeight,
     fullscreen: false,
@@ -63,34 +66,49 @@ function createMainWindow(config, options) {
   const indexURL = global.isDev ? 'http://localhost:8080/browser/index.html' : `file://${app.getAppPath()}/browser/index.html`;
   mainWindow.loadURL(indexURL);
 
-  // This section should be called after loadURL() #570
-  if (options.hideOnStartup) {
-    if (windowOptions.maximized) {
-      mainWindow.maximize();
-    }
-
-    // on MacOS, the window is already hidden until 'ready-to-show'
-    if (process.platform !== 'darwin') {
+  // handle hiding the app when launched by auto-start
+  if (hideOnStartup) {
+    if (trayIconShown && process.platform !== 'darwin') {
+      mainWindow.hide();
+    } else {
       mainWindow.minimize();
     }
-  } else if (windowOptions.maximized) {
-    mainWindow.maximize();
   }
 
+  mainWindow.once('ready-to-show', () => {
+    mainWindow.webContents.setZoomLevel(0);
+
+    // handle showing the window when not launched by auto-start
+    // - when not configured to auto-start, immediately show contents and optionally maximize as needed
+    if (!hideOnStartup) {
+      mainWindow.show();
+      if (windowIsMaximized) {
+        mainWindow.maximize();
+      }
+    }
+  });
+
+  mainWindow.once('show', () => {
+    // handle showing the app when hidden to the tray icon by auto-start
+    // - optionally maximize the window as needed
+    if (hideOnStartup && windowIsMaximized) {
+      mainWindow.maximize();
+    }
+  });
+
+  mainWindow.once('restore', () => {
+    // handle restoring the window when minimized to the app icon by auto-start
+    // - optionally maximize the window as needed
+    if (hideOnStartup && windowIsMaximized) {
+      mainWindow.maximize();
+    }
+  });
+
   mainWindow.webContents.on('will-attach-webview', (event, webPreferences) => {
     webPreferences.nodeIntegration = false;
     webPreferences.contextIsolation = true;
   });
 
-  mainWindow.once('ready-to-show', () => {
-    mainWindow.webContents.setZoomLevel(0);
-    if (process.platform !== 'darwin') {
-      mainWindow.show();
-    } else if (options.hideOnStartup !== true) {
-      mainWindow.show();
-    }
-  });
-
   // App should save bounds when a window is closed.
   // However, 'close' is not fired in some situations(shutdown, ctrl+c)
   // because main process is killed in such situations.