1 files changed, 24 insertions, 0 deletions
diff --git a/tests/cefclient/browser/views_window_mac.mm b/tests/cefclient/browser/views_window_mac.mm
new file mode 100644
index 00000000..936a85c0
--- /dev/null
+++ b/tests/cefclient/browser/views_window_mac.mm
@@ -0,0 +1,24 @@
+// Copyright (c) 2023 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+
+#include "tests/cefclient/browser/views_window.h"
+
+#include <Cocoa/Cocoa.h>
+
+namespace client {
+
+void ViewsWindow::NudgeWindow() {
+  if (window_) {
+    auto view = CAST_CEF_WINDOW_HANDLE_TO_NSVIEW(window_->GetWindowHandle());
+    NSWindow* main_window = view.window;
+
+    auto theme_frame = main_window.contentView.superview;
+    // Nudge view frame a little to force an update.
+    NSSize size = theme_frame.frame.size;
+    [theme_frame setFrameSize:NSMakeSize(size.width - 1, size.height)];
+    [theme_frame setFrameSize:size];
+  }
+}
+
+}