8 files changed, 80 insertions, 47 deletions
diff --git a/include/cru/win/native/exception.hpp b/include/cru/win/native/exception.hpp
new file mode 100644
index 00000000..637f021d
--- /dev/null
+++ b/include/cru/win/native/exception.hpp
@@ -0,0 +1,6 @@
+#pragma once
+#include "../exception.hpp"
+
+namespace cru::platform::native::win {
+using platform::win::Win32Error;
+}  // namespace cru::platform::native::win
diff --git a/include/cru/win/native/god_window.hpp b/include/cru/win/native/god_window.hpp
index 9ac49858..9fd20caa 100644
--- a/include/cru/win/native/god_window.hpp
+++ b/include/cru/win/native/god_window.hpp
@@ -5,13 +5,13 @@
 
 #include <memory>
 
-namespace cru::win::native {
-class WinApplication;
+namespace cru::platform::native::win {
+class WinUiApplication;
 class WindowClass;
 
 class GodWindow : public Object {
  public:
-  explicit GodWindow(WinApplication* application);
+  explicit GodWindow(WinUiApplication* application);
   GodWindow(const GodWindow& other) = delete;
   GodWindow(GodWindow&& other) = delete;
   GodWindow& operator=(const GodWindow& other) = delete;
@@ -24,7 +24,7 @@ class GodWindow : public Object {
                               LPARAM l_param, LRESULT* result);
 
  private:
-  WinApplication* application_;
+  WinUiApplication* application_;
 
   std::shared_ptr<WindowClass> god_window_class_;
   HWND hwnd_;
diff --git a/include/cru/win/native/win_native_window.hpp b/include/cru/win/native/native_window.hpp
index 18de4f5d..ed678591 100644
--- a/include/cru/win/native/win_native_window.hpp
+++ b/include/cru/win/native/native_window.hpp
@@ -2,20 +2,20 @@
 #include "../win_pre_config.hpp"
 
 #include "cru/platform/native/native_window.hpp"
+#include "platform_id.hpp"
 #include "window_native_message_event_args.hpp"
 
 #include <memory>
 
-namespace cru::win::native {
-class WinApplication;
+namespace cru::platform::native::win {
+class WinUiApplication;
 class WindowClass;
 class WindowManager;
 class WindowRenderTarget;
 
-class WinNativeWindow : public Object,
-                        public virtual platform::native::INativeWindow {
+class WinNativeWindow : public NativeWindow {
  public:
-  WinNativeWindow(WinApplication* application,
+  WinNativeWindow(WinUiApplication* application,
                   std::shared_ptr<WindowClass> window_class, DWORD window_style,
                   WinNativeWindow* parent);
   WinNativeWindow(const WinNativeWindow& other) = delete;
@@ -24,37 +24,40 @@ class WinNativeWindow : public Object,
   WinNativeWindow& operator=(WinNativeWindow&& other) = delete;
   ~WinNativeWindow() override;
 
+  CRU_PLATFORMID_IMPLEMENT_WIN
+
+ public:
   bool IsValid() override;
   void SetDeleteThisOnDestroy(bool value) override;
 
   void Close() override;
 
-  INativeWindow* GetParent() override { return parent_window_; }
+  WinNativeWindow* GetParent() override { return parent_window_; }
 
   bool IsVisible() override;
   void SetVisible(bool is_visible) override;
 
-  ui::Size GetClientSize() override;
-  void SetClientSize(const ui::Size& size) override;
+  Size GetClientSize() override;
+  void SetClientSize(const Size& size) override;
 
   // Get the rect of the window containing frame.
   // The lefttop of the rect is relative to screen lefttop.
-  ui::Rect GetWindowRect() override;
+  Rect GetWindowRect() override;
 
   // Set the rect of the window containing frame.
   // The lefttop of the rect is relative to screen lefttop.
-  void SetWindowRect(const ui::Rect& rect) override;
+  void SetWindowRect(const Rect& rect) override;
 
-  platform::graph::IPainter* BeginPaint() override;
+  graph::Painter* BeginPaint() override;
 
   IEvent<std::nullptr_t>* DestroyEvent() override { return &destroy_event_; }
   IEvent<std::nullptr_t>* PaintEvent() override { return &paint_event_; }
-  IEvent<ui::Size>* ResizeEvent() override { return &resize_event_; }
+  IEvent<Size>* ResizeEvent() override { return &resize_event_; }
   IEvent<bool>* FocusEvent() override { return &focus_event_; }
   IEvent<bool>* MouseEnterLeaveEvent() override {
     return &mouse_enter_leave_event_;
   }
-  IEvent<ui::Point>* MouseMoveEvent() override { return &mouse_move_event_; }
+  IEvent<Point>* MouseMoveEvent() override { return &mouse_move_event_; }
   IEvent<platform::native::NativeMouseButtonEventArgs>* MouseDownEvent()
       override {
     return &mouse_down_event_;
@@ -107,7 +110,7 @@ class WinNativeWindow : public Object,
   void OnDeactivatedInternal();
 
  private:
-  WinApplication* application_;
+  WinUiApplication* application_;
 
   bool delete_this_on_destroy_ = true;
 
@@ -121,10 +124,10 @@ class WinNativeWindow : public Object,
 
   Event<std::nullptr_t> destroy_event_;
   Event<std::nullptr_t> paint_event_;
-  Event<ui::Size> resize_event_;
+  Event<Size> resize_event_;
   Event<bool> focus_event_;
   Event<bool> mouse_enter_leave_event_;
-  Event<ui::Point> mouse_move_event_;
+  Event<Point> mouse_move_event_;
   Event<platform::native::NativeMouseButtonEventArgs> mouse_down_event_;
   Event<platform::native::NativeMouseButtonEventArgs> mouse_up_event_;
   Event<int> key_down_event_;
@@ -132,4 +135,4 @@ class WinNativeWindow : public Object,
 
   Event<WindowNativeMessageEventArgs&> native_message_event_;
 };
-}  // namespace cru::win::native
+}  // namespace cru::platform::native::win
diff --git a/include/cru/win/native/platform_id.hpp b/include/cru/win/native/platform_id.hpp
new file mode 100644
index 00000000..4b018d51
--- /dev/null
+++ b/include/cru/win/native/platform_id.hpp
@@ -0,0 +1,19 @@
+#pragma once
+#include <cru/platform/native_resource.hpp>
+
+#include <stdexcept>
+#include <string_view>
+
+namespace cru::platform::native::win {
+constexpr std::wstring_view win_platform_id = L"Windows";
+
+inline bool IsWindowsResource(NativeResource* resource) {
+  return resource->GetPlatformId() == win_platform_id;
+}
+
+}  // namespace cru::platform::native::win
+
+#define CRU_PLATFORMID_IMPLEMENT_WIN                             \
+  std::wstring_view GetPlatformId() const override {             \
+    return ::cru::platform::native::win::win_platform_id; \
+  }
diff --git a/include/cru/win/native/win_application.hpp b/include/cru/win/native/ui_application.hpp
index d3e705e1..08a9c3ed 100644
--- a/include/cru/win/native/win_application.hpp
+++ b/include/cru/win/native/ui_application.hpp
@@ -1,30 +1,34 @@
 #pragma once
 #include "../win_pre_config.hpp"
 
+#include "platform_id.hpp"
+
 #include "cru/platform/native/ui_applicaition.hpp"
 
 #include <memory>
 
-namespace cru::win::native {
+namespace cru::platform::native::win {
 class GodWindow;
 class TimerManager;
 class WindowManager;
 
-class WinApplication : public Object,
-                       public virtual platform::native::IUiApplication {
-  friend IUiApplication* IUiApplication::CreateInstance();
+class WinUiApplication : public UiApplication {
+  friend UiApplication* UiApplication::CreateInstance();
+
  public:
-  static WinApplication* GetInstance();
+  static WinUiApplication* GetInstance();
 
  private:
-  explicit WinApplication(HINSTANCE h_instance);
+  explicit WinUiApplication(HINSTANCE h_instance);
 
  public:
-  WinApplication(const WinApplication&) = delete;
-  WinApplication(WinApplication&&) = delete;
-  WinApplication& operator=(const WinApplication&) = delete;
-  WinApplication& operator=(WinApplication&&) = delete;
-  ~WinApplication() override;
+  WinUiApplication(const WinUiApplication&) = delete;
+  WinUiApplication(WinUiApplication&&) = delete;
+  WinUiApplication& operator=(const WinUiApplication&) = delete;
+  WinUiApplication& operator=(WinUiApplication&&) = delete;
+  ~WinUiApplication() override;
+
+  CRU_PLATFORMID_IMPLEMENT_WIN
 
  public:
   int Run() override;
@@ -39,12 +43,11 @@ class WinApplication : public Object,
                             const std::function<void()>& action) override;
   void CancelTimer(unsigned long id) override;
 
-  std::vector<platform::native::INativeWindow*> GetAllWindow() override;
-  platform::native::INativeWindow* CreateWindow(
-      platform::native::INativeWindow* parent) override;
+  std::vector<NativeWindow*> GetAllWindow() override;
+  NativeWindow* CreateWindow(NativeWindow* parent) override;
 
-  bool IsAutoDelete() const override { return auto_delete_; }
-  void SetAutoDelete(bool value) override { auto_delete_ = value; }
+  bool IsAutoDelete() const { return auto_delete_; }
+  void SetAutoDelete(bool value) { auto_delete_ = value; }
 
   HINSTANCE GetInstanceHandle() const { return h_instance_; }
 
@@ -63,4 +66,4 @@ class WinApplication : public Object,
 
   std::vector<std::function<void()>> quit_handlers_;
 };
-}  // namespace cru::win::native
+}  // namespace cru::platform::native::win
diff --git a/include/cru/win/native/window_class.hpp b/include/cru/win/native/window_class.hpp
index 17712958..fec3b32e 100644
--- a/include/cru/win/native/window_class.hpp
+++ b/include/cru/win/native/window_class.hpp
@@ -5,7 +5,7 @@
 
 #include <string>
 
-namespace cru::win::native {
+namespace cru::platform::native::win {
 class WindowClass : public Object {
  public:
   WindowClass(const std::wstring& name, WNDPROC window_proc,
diff --git a/include/cru/win/native/window_native_message_event_args.hpp b/include/cru/win/native/window_native_message_event_args.hpp
index 37149f36..4cf744f2 100644
--- a/include/cru/win/native/window_native_message_event_args.hpp
+++ b/include/cru/win/native/window_native_message_event_args.hpp
@@ -3,7 +3,7 @@
 
 #include "cru/common/base.hpp"
 
-namespace cru::win::native {
+namespace cru::platform::native::win {
 struct WindowNativeMessage {
   HWND hwnd;
   UINT msg;
diff --git a/include/cru/win/native/window_render_target.hpp b/include/cru/win/native/window_render_target.hpp
index 5ff8ec87..bde47f4f 100644
--- a/include/cru/win/native/window_render_target.hpp
+++ b/include/cru/win/native/window_render_target.hpp
@@ -3,15 +3,15 @@
 
 #include "cru/common/base.hpp"
 
-namespace cru::win::graph {
-struct IWinNativeFactory;
+namespace cru::platform::graph::win::direct {
+struct IDirectFactory;
 }
 
-namespace cru::win::native {
+namespace cru::platform::native::win {
 // Represents a window render target.
 class WindowRenderTarget : public Object {
  public:
-  WindowRenderTarget(graph::IWinNativeFactory* factory, HWND hwnd);
+  WindowRenderTarget(graph::win::direct::IDirectFactory* factory, HWND hwnd);
   WindowRenderTarget(const WindowRenderTarget& other) = delete;
   WindowRenderTarget(WindowRenderTarget&& other) = delete;
   WindowRenderTarget& operator=(const WindowRenderTarget& other) = delete;
@@ -19,7 +19,9 @@ class WindowRenderTarget : public Object {
   ~WindowRenderTarget() override = default;
 
  public:
-  graph::IWinNativeFactory* GetWinNativeFactory() const { return factory_; }
+  graph::win::direct::IDirectFactory* GetWinNativeFactory() const {
+    return factory_;
+  }
 
   // Get the target bitmap which can be set as the ID2D1DeviceContext's target.
   ID2D1Bitmap1* GetTargetBitmap() const { return target_bitmap_.Get(); }
@@ -37,8 +39,8 @@ class WindowRenderTarget : public Object {
   void CreateTargetBitmap();
 
  private:
-  graph::IWinNativeFactory* factory_;
+  graph::win::direct::IDirectFactory* factory_;
   Microsoft::WRL::ComPtr<IDXGISwapChain1> dxgi_swap_chain_;
   Microsoft::WRL::ComPtr<ID2D1Bitmap1> target_bitmap_;
 };
-}  // namespace cru::win::native
+}  // namespace cru::platform::native::win