Can now add a lua file with the same name as a page for page-scoped lua functionality

src/app.cpp

@@ -1,9 +1,13 @@
 #include "app.hpp"
 #include <RmlUi/Core/Core.h>
 #include <RmlUi/Core/Factory.h>
+#include <RmlUi/Lua/Interpreter.h>
+#include <RmlUi/Lua.h>
 #include <filesystem>
 #include <fstream>
 #include <iostream>
+#include <lauxlib.h>
+#include <lua.h>
 #include <sstream>
 
 App::App(Rml::Context *ctx, ApplicationData *appData) 
@@ -64,6 +68,22 @@ bool App::NavigateTo(const std::string &pageName) {
         return false;
     }
 
+    TeardownCurrentPage();
+
+    std::string luaPath = GetAssetsPath() + "/pages/" + pageName + ".lua";
+    if (std::filesystem::exists(luaPath)) {
+        std::string luaContent;
+        if (ReadFile(luaPath, luaContent)) {
+            lua_State *L = Rml::Lua::Interpreter::GetLuaState();
+
+            if (luaL_dostring(L, luaContent.c_str()) != LUA_OK) {
+                std::cout << "[LUA ERROR] Failed to run page script " << pageName << ".lua: " 
+                          << lua_tostring(L, -1) << "\n";
+                lua_pop(L, 1);
+            }
+        }
+    }
+
     std::string path = GetAssetsPath() + "/pages/" + pageName + ".rml";
     std::string content;
     if (!ReadFile(path, content)) {
@@ -71,8 +91,6 @@ bool App::NavigateTo(const std::string &pageName) {
         return false;
     }
 
-    TeardownCurrentPage();
-
     if (Rml::DataModelConstructor constructor = ctx->CreateDataModel(pageName)) {
         page->SetupDataModel(constructor);
         page->model = constructor.GetModelHandle();
@@ -150,6 +168,10 @@ std::string App::GetAssetsPath() {
 void App::TeardownCurrentPage() {
     if (!currentPage) return;
 
+    lua_State* L = Rml::Lua::Interpreter::GetLuaState();
+    lua_pushnil(L);
+    lua_setglobal(L, currentPage->GetName().c_str());
+
     currentPage->OnExit();
 
     if (currentPage->hasModel) {