3 files changed, 7 insertions, 0 deletions
diff --git a/src/ui/include/screen.hpp b/src/ui/include/screen.hpp
index 60939660..4241c712 100644
--- a/src/ui/include/screen.hpp
+++ b/src/ui/include/screen.hpp
@@ -27,6 +27,9 @@ class Screen {
   Screen();
   virtual ~Screen();
 
+  virtual auto onShown() -> void {}
+  virtual auto onHidden() -> void {}
+
   auto root() -> lv_obj_t* { return root_; }
   auto content() -> lv_obj_t* { return content_; }
   auto alert() -> lv_obj_t* { return alert_; }
diff --git a/src/ui/include/screen_lua.hpp b/src/ui/include/screen_lua.hpp
index ee9f6813..0ed3a508 100644
--- a/src/ui/include/screen_lua.hpp
+++ b/src/ui/include/screen_lua.hpp
@@ -18,6 +18,9 @@ class Lua : public Screen {
   Lua();
   ~Lua();
 
+  auto onShown() -> void override;
+  auto onHidden() -> void override;
+
   auto SetObjRef(lua_State*) -> void;
 
  private:
diff --git a/src/ui/include/ui_fsm.hpp b/src/ui/include/ui_fsm.hpp
index 6cf2ba4c..07937559 100644
--- a/src/ui/include/ui_fsm.hpp
+++ b/src/ui/include/ui_fsm.hpp
@@ -129,6 +129,7 @@ class UiState : public tinyfsm::Fsm<UiState> {
 
   static lua::Property sControlsScheme;
   static lua::Property sScrollSensitivity;
+  static lua::Property sLockSwitch;
 
   static lua::Property sDatabaseUpdating;
 };