fix: isMaximized after minimize/fullscreen on macOS (#38291)

fix: isMaximized after isMinimized on macOS

shell/browser/native_window_mac.mm

@@ -562,6 +562,11 @@ void NativeWindowMac::Unmaximize() {
 }
 
 bool NativeWindowMac::IsMaximized() {
+  // It's possible for [window_ isZoomed] to be true
+  // when the window is minimized or fullscreened.
+  if (IsMinimized() || IsFullscreen())
+    return false;
+
   if (HasStyleMask(NSWindowStyleMaskResizable) != 0)
     return [window_ isZoomed];
 

spec/api-browser-window-spec.ts

@@ -1665,6 +1665,42 @@ describe('BrowserWindow module', () => {
           expectBoundsEqual(w.getNormalBounds(), bounds);
         });
 
+        it('correctly reports maximized state after maximizing then minimizing', async () => {
+          w.destroy();
+          w = new BrowserWindow({ show: false });
+
+          w.show();
+
+          const maximize = once(w, 'maximize');
+          w.maximize();
+          await maximize;
+
+          const minimize = once(w, 'minimize');
+          w.minimize();
+          await minimize;
+
+          expect(w.isMaximized()).to.equal(false);
+          expect(w.isMinimized()).to.equal(true);
+        });
+
+        it('correctly reports maximized state after maximizing then fullscreening', async () => {
+          w.destroy();
+          w = new BrowserWindow({ show: false });
+
+          w.show();
+
+          const maximize = once(w, 'maximize');
+          w.maximize();
+          await maximize;
+
+          const enterFS = once(w, 'enter-full-screen');
+          w.setFullScreen(true);
+          await enterFS;
+
+          expect(w.isMaximized()).to.equal(false);
+          expect(w.isFullScreen()).to.equal(true);
+        });
+
         it('does not change size for a frameless window with min size', async () => {
           w.destroy();
           w = new BrowserWindow({