2 files changed, 32 insertions, 0 deletions
diff --git a/include/cru/platform/gui/Menu.hpp b/include/cru/platform/gui/Menu.hpp
new file mode 100644
index 00000000..31fbc068
--- /dev/null
+++ b/include/cru/platform/gui/Menu.hpp
@@ -0,0 +1,28 @@
+#pragma once
+#include "Base.hpp"
+
+#include <functional>
+
+namespace cru::platform::gui {
+struct IMenu;
+
+struct CRU_PLATFORM_GUI_API IMenuItem : virtual IPlatformResource {
+  virtual String GetTitle() = 0;
+  virtual void SetTitle(String title) = 0;
+  virtual bool IsEnabled() = 0;
+  virtual void SetEnabled(bool enabled) = 0;
+  virtual IMenu* GetParentMenu() = 0;
+  virtual IMenu* GetSubmenu() = 0;
+  virtual void SetOnClickHandler(std::function<void()> handler) = 0;
+};
+
+struct CRU_PLATFORM_GUI_API IMenu : virtual IPlatformResource {
+  virtual IMenuItem* GetItemAt(int index) = 0;
+  virtual int GetItemCount() = 0;
+  virtual IMenuItem* CreateItemAt(int index) = 0;
+  virtual void RemoveItemAt(int index) = 0;
+
+  virtual std::vector<IMenuItem*> GetItems();
+  bool Empty() { return GetItemCount() == 0; }
+};
+}  // namespace cru::platform::gui
diff --git a/include/cru/platform/gui/UiApplication.hpp b/include/cru/platform/gui/UiApplication.hpp
index f450ba7d..5c22bd94 100644
--- a/include/cru/platform/gui/UiApplication.hpp
+++ b/include/cru/platform/gui/UiApplication.hpp
@@ -2,6 +2,7 @@
 #include "Base.hpp"
 
 #include "cru/common/Bitmask.hpp"
+#include "cru/platform/gui/Menu.hpp"
 
 #include <chrono>
 #include <functional>
@@ -56,5 +57,8 @@ struct CRU_PLATFORM_GUI_API IUiApplication : public virtual IPlatformResource {
   virtual ICursorManager* GetCursorManager() = 0;
 
   virtual IClipboard* GetClipboard() = 0;
+
+  // If return nullptr, it means the menu is not supported.
+  virtual IMenu* GetApplicationMenu();
 };
 }  // namespace cru::platform::gui