5 files changed, 42 insertions, 4 deletions
diff --git a/src/ui/CMakeLists.txt b/src/ui/CMakeLists.txt
index 16b03309..0d42c8b7 100644
--- a/src/ui/CMakeLists.txt
+++ b/src/ui/CMakeLists.txt
@@ -1,6 +1,6 @@
 set(CRU_UI_INCLUDE_DIR ${CRU_INCLUDE_DIR}/cru/ui)
 
-add_library(cru_ui STATIC
+add_library(cru_ui SHARED
 	Helper.cpp
 	ThemeManager.cpp
 	UiManager.cpp
@@ -26,6 +26,8 @@ add_library(cru_ui STATIC
 	helper/ShortcutHub.cpp
 	host/LayoutPaintCycler.cpp
 	host/WindowHost.cpp
+	mapper/Mapper.cpp
+	mapper/MapperRegistry.cpp
 	render/BorderRenderObject.cpp
 	render/CanvasRenderObject.cpp
 	render/FlexLayoutRenderObject.cpp
@@ -39,7 +41,6 @@ add_library(cru_ui STATIC
 	style/Styler.cpp
 	style/StyleRule.cpp
 	style/StyleRuleSet.cpp
-	xml/XmlMapper.cpp
-	xml/XmlMapperRegistry.cpp
 )
-target_link_libraries(cru_ui PUBLIC cru_platform_gui)
+target_compile_definitions(cru_ui PRIVATE CRU_UI_EXPORT_API)
+target_link_libraries(cru_ui PUBLIC cru_platform_gui cru_xml)
diff --git a/src/ui/mapper/Mapper.cpp b/src/ui/mapper/Mapper.cpp
new file mode 100644
index 00000000..93a83d8a
--- /dev/null
+++ b/src/ui/mapper/Mapper.cpp
@@ -0,0 +1,8 @@
+#include "cru/ui/mapper/Mapper.hpp"
+
+#include <typeindex>
+
+namespace cru::ui::mapper {
+MapperBase::MapperBase(std::type_index type_index)
+    : type_index_(std::move(type_index)) {}
+}  // namespace cru::ui::mapper
diff --git a/src/ui/mapper/MapperRegistry.cpp b/src/ui/mapper/MapperRegistry.cpp
new file mode 100644
index 00000000..e445a7d0
--- /dev/null
+++ b/src/ui/mapper/MapperRegistry.cpp
@@ -0,0 +1,29 @@
+#include "cru/ui/mapper/MapperRegistry.hpp"
+
+namespace cru::ui::mapper {
+MapperRegistry::MapperRegistry() {}
+
+MapperRegistry::~MapperRegistry() {
+  for (auto mapper : mapper_list_) {
+    delete mapper;
+  }
+}
+
+void MapperRegistry::RegisterMapper(MapperBase *mapper) {
+  if (std::find(mapper_list_.cbegin(), mapper_list_.cend(), mapper) !=
+      mapper_list_.cend()) {
+    throw Exception(u"This mapper is already registered.");
+  }
+
+  mapper_list_.push_back(mapper);
+}
+
+void MapperRegistry::UnregisterMapper(MapperBase *mapper) {
+  auto it = std::find(mapper_list_.begin(), mapper_list_.end(), mapper);
+  if (it == mapper_list_.end()) {
+    throw Exception(u"This mapper is not registered.");
+  }
+
+  mapper_list_.erase(it);
+}
+}  // namespace cru::ui::mapper
diff --git a/src/ui/xml/XmlMapper.cpp b/src/ui/xml/XmlMapper.cpp
deleted file mode 100644
index e69de29b..00000000
--- a/src/ui/xml/XmlMapper.cpp
+++ /dev/null
diff --git a/src/ui/xml/XmlMapperRegistry.cpp b/src/ui/xml/XmlMapperRegistry.cpp
deleted file mode 100644
index e69de29b..00000000
--- a/src/ui/xml/XmlMapperRegistry.cpp
+++ /dev/null