1 files changed, 31 insertions, 0 deletions
diff --git a/gfx/vr/FxRWindowManager.h b/gfx/vr/FxRWindowManager.h
new file mode 100644
index 0000000000..214ee1ecbf
--- /dev/null
+++ b/gfx/vr/FxRWindowManager.h
@@ -0,0 +1,31 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#pragma once
+#include <cstdint>
+
+class nsPIDOMWindowOuter;
+class nsWindow;
+
+// FxRWindowManager is a singleton that is responsible for tracking all of
+// the top-level windows created for Firefox Reality on Desktop. Only a
+// single window is initially supported.
+class FxRWindowManager final {
+ public:
+  static FxRWindowManager* GetInstance();
+
+  void AddWindow(nsPIDOMWindowOuter* aWindow);
+  bool IsFxRWindow(uint64_t aOuterWindowID);
+  bool IsFxRWindow(const nsWindow* aWindow) const;
+  uint64_t GetWindowID() const;
+
+ private:
+  FxRWindowManager();
+
+  // Only a single window is supported for tracking. Support for multiple
+  // windows will require a data structure to collect windows as they are
+  // created.
+  nsPIDOMWindowOuter* mWindow;
+};