Custom element registration

CMakeLists.txt

@@ -22,17 +22,22 @@ add_library(rmlui_backend STATIC
     vendor/rmlui_backend/RmlUi_Renderer_GL3.cpp
 )
 
+file(GLOB_RECURSE PAGE_SOURCES CONFIGURE_DEPENDS "src/pages/*.cpp")
+file(GLOB_RECURSE ELEMENT_SOURCES CONFIGURE_DEPENDS "src/elements/*.cpp")
+
 add_executable(${PROJECT_NAME}
     src/main.cpp
     src/app.cpp
     src/lua_app_api.cpp
     src/page.cpp
     
-    src/pages/test_page.cpp
+    ${PAGE_SOURCES}
+    ${ELEMENT_SOURCES}
 )
 
 target_include_directories(${PROJECT_NAME} PRIVATE
     src
+    src/elements
     vendor/rmlui_backend
     ${FREETYPE_INCLUDE_DIRS}
 )