WindowServer+LibGUI: Add support for nested menus

It's now possible to add a GMenu as a submenu of another GMenu.
Simply use the GMenu::add_submenu(NonnullOwnPtr<GMenu>) API :^)

The WindowServer now keeps track of a stack of open menus rather than
just one "current menu". This code needs a bit more work, but the basic
functionality is now here!

1 files changed, 4 insertions, 1 deletions

diff --git a/Servers/WindowServer/WSWindowManager.h b/Servers/WindowServer/WSWindowManager.h
index 3c0dabb072..cece8d2de2 100644
--- a/Servers/WindowServer/WSWindowManager.h
+++ b/Servers/WindowServer/WSWindowManager.h
@@ -78,11 +78,14 @@ public:
 
     void draw_window_switcher();
 
+    WSMenuManager& menu_manager() { return m_menu_manager; }
+    const WSMenuManager& menu_manager() const { return m_menu_manager; }
+
     Rect menubar_rect() const;
     WSMenuBar* current_menubar() { return m_current_menubar.ptr(); }
     void set_current_menubar(WSMenuBar*);
     WSMenu* current_menu() { return m_current_menu.ptr(); }
-    void set_current_menu(WSMenu*);
+    void set_current_menu(WSMenu*, bool is_submenu = false);
     WSMenu* system_menu() { return m_system_menu.ptr(); }
 
     const WSCursor& active_cursor() const;