Guard core UI response helpers when UI is disabled

Author: GaspardKirira

CMakeLists.txt

@@ -362,7 +362,7 @@ endif()
 # --------------------------------------------------------------------
 # ui dependency
 # --------------------------------------------------------------------
-if (NOT TARGET vix::ui AND NOT TARGET vix_ui AND NOT TARGET ui)
+if (NOT VIX_CORE_WITH_UI STREQUAL "OFF" AND NOT TARGET vix::ui AND NOT TARGET vix_ui AND NOT TARGET ui)
   if (EXISTS "${CMAKE_CURRENT_LIST_DIR}/../ui/CMakeLists.txt")
     message(STATUS "[core] Adding ui from sibling: ../ui")
     add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/../ui" "ui")

include/vix/http/ResponseWrapper.hpp

@@ -33,8 +33,10 @@
 #include <nlohmann/json.hpp>
 #include <vix/template/Context.hpp>
 #include <vix/view/TemplateView.hpp>
+#ifndef VIX_CORE_NO_UI
 #include <vix/ui/core/View.hpp>
 #include <vix/ui/html/HtmlResponse.hpp>
+#endif
 
 namespace vix::http
 {
@@ -449,6 +451,7 @@ namespace vix::http
       return *this;
     }
 
+#ifndef VIX_CORE_NO_UI
     /** @brief Send a Vix UI HTML response. */
     ResponseWrapper &ui(const vix::ui::HtmlResponse &response)
     {
@@ -492,6 +495,7 @@ namespace vix::http
       return ui(vix::ui::HtmlResponse::from_view_result(result, s));
     }
 
+#endif
     /** @brief Send JSON using nlohmann::json with an auto Content-Type if missing. */
     ResponseWrapper &json(const vix::json::Json &j)
     {