fix: style fixes to windows app control buttons (#4150)

apps/electron/src/main/main-window.ts

@@ -8,6 +8,7 @@ import { isMacOS, isWindows } from '../shared/utils';
 import { getExposedMeta } from './exposed';
 import { ensureHelperProcess } from './helper-process';
 import { logger } from './logger';
+import { uiSubjects } from './ui';
 import { parseCookie } from './utils';
 
 const IS_DEV: boolean =
@@ -111,6 +112,20 @@ async function createWindow() {
     const size = browserWindow.getSize();
     browserWindow.setSize(size[0] + 1, size[1] + 1);
     browserWindow.setSize(size[0], size[1]);
+    uiSubjects.onMaximized.next(false);
+  });
+
+  browserWindow.on('maximize', () => {
+    uiSubjects.onMaximized.next(true);
+  });
+
+  // full-screen == maximized in UI on windows
+  browserWindow.on('enter-full-screen', () => {
+    uiSubjects.onMaximized.next(true);
+  });
+
+  browserWindow.on('unmaximize', () => {
+    uiSubjects.onMaximized.next(false);
   });
 
   /**

apps/electron/src/main/ui/events.ts

@@ -19,4 +19,10 @@ export const uiEvents = {
       sub.unsubscribe();
     };
   },
+  onMaximized: (fn: (maximized: boolean) => void) => {
+    const sub = uiSubjects.onMaximized.subscribe(fn);
+    return () => {
+      sub.unsubscribe();
+    };
+  },
 } satisfies Record<string, MainEventRegister>;

apps/electron/src/main/ui/handlers.ts

@@ -26,7 +26,11 @@ export const uiHandlers = {
   handleMaximizeApp: async () => {
     const windows = BrowserWindow.getAllWindows();
     windows.forEach(w => {
-      if (w.isMaximized()) {
+      // allow unmaximize when in full screen mode
+      if (w.isFullScreen()) {
+        w.setFullScreen(false);
+        w.unmaximize();
+      } else if (w.isMaximized()) {
         w.unmaximize();
       } else {
         w.maximize();

apps/electron/src/main/ui/subject.ts

@@ -3,4 +3,5 @@ import { Subject } from 'rxjs';
 export const uiSubjects = {
   onStartLogin: new Subject<{ email?: string }>(),
   onFinishLogin: new Subject<{ success: boolean; email?: string }>(),
+  onMaximized: new Subject<boolean>(),
 };