7 files changed, 15 insertions, 16 deletions
diff --git a/src/ui/CMakeLists.txt b/src/ui/CMakeLists.txt
index 45f64c88..d7b924cb 100644
--- a/src/ui/CMakeLists.txt
+++ b/src/ui/CMakeLists.txt
@@ -2,7 +2,7 @@ set(CRU_UI_INCLUDE_DIR ${CRU_INCLUDE_DIR}/cru/ui)
 
 add_library(cru_ui STATIC
 	Helper.hpp
-	RoutedEventDispatch.hpp
+	host/RoutedEventDispatch.hpp
 
 	ClickDetector.cpp
 	ContentControl.cpp
@@ -14,7 +14,6 @@ add_library(cru_ui STATIC
 	UiEvent.cpp
 	UiManager.cpp
 	Window.cpp
-	WindowHost.cpp
 	controls/Button.cpp
 	controls/Container.cpp
 	controls/FlexLayout.cpp
@@ -22,6 +21,7 @@ add_library(cru_ui STATIC
 	controls/TextBlock.cpp
 	controls/TextBox.cpp
 	controls/TextControlService.hpp
+	host/WindowHost.cpp
 	render/BorderRenderObject.cpp
 	render/CanvasRenderObject.cpp
 	render/FlexLayoutRenderObject.cpp
@@ -43,7 +43,6 @@ target_sources(cru_ui PUBLIC
 	${CRU_UI_INCLUDE_DIR}/UiEvent.hpp
 	${CRU_UI_INCLUDE_DIR}/UiManager.hpp
 	${CRU_UI_INCLUDE_DIR}/Window.hpp
-	${CRU_UI_INCLUDE_DIR}/WindowHost.hpp
 	${CRU_UI_INCLUDE_DIR}/controls/Base.hpp
 	${CRU_UI_INCLUDE_DIR}/controls/Button.hpp
 	${CRU_UI_INCLUDE_DIR}/controls/Container.hpp
@@ -51,6 +50,7 @@ target_sources(cru_ui PUBLIC
 	${CRU_UI_INCLUDE_DIR}/controls/StackLayout.hpp
 	${CRU_UI_INCLUDE_DIR}/controls/TextBox.hpp
 	${CRU_UI_INCLUDE_DIR}/controls/TextBlock.hpp
+	${CRU_UI_INCLUDE_DIR}/host/WindowHost.hpp
 	${CRU_UI_INCLUDE_DIR}/render/Base.hpp
 	${CRU_UI_INCLUDE_DIR}/render/BorderRenderObject.hpp
 	${CRU_UI_INCLUDE_DIR}/render/CanvasRenderObject.hpp
diff --git a/src/ui/Control.cpp b/src/ui/Control.cpp
index cae48c66..23a3cef2 100644
--- a/src/ui/Control.cpp
+++ b/src/ui/Control.cpp
@@ -1,11 +1,10 @@
 #include "cru/ui/Control.hpp"
 
-#include "RoutedEventDispatch.hpp"
 #include "cru/common/Base.hpp"
 #include "cru/platform/gui/Cursor.hpp"
 #include "cru/platform/gui/UiApplication.hpp"
 #include "cru/ui/Base.hpp"
-#include "cru/ui/WindowHost.hpp"
+#include "cru/ui/host/WindowHost.hpp"
 #include "cru/ui/render/RenderObject.hpp"
 
 #include <memory>
@@ -31,7 +30,7 @@ Control::~Control() {
   for (const auto child : children_) delete child;
 }
 
-WindowHost* Control::GetWindowHost() const { return window_host_; }
+host::WindowHost* Control::GetWindowHost() const { return window_host_; }
 
 void Control::TraverseDescendants(
     const std::function<void(Control*)>& predicate) {
@@ -152,7 +151,7 @@ void Control::OnParentChanged(Control* old_parent, Control* new_parent) {
   CRU_UNUSED(new_parent)
 }
 
-void Control::OnAttachToHost(WindowHost* host) { CRU_UNUSED(host) }
+void Control::OnAttachToHost(host::WindowHost* host) { CRU_UNUSED(host) }
 
-void Control::OnDetachFromHost(WindowHost* host) { CRU_UNUSED(host) }
+void Control::OnDetachFromHost(host::WindowHost* host) { CRU_UNUSED(host) }
 }  // namespace cru::ui
diff --git a/src/ui/Window.cpp b/src/ui/Window.cpp
index 051e67ef..c49140a4 100644
--- a/src/ui/Window.cpp
+++ b/src/ui/Window.cpp
@@ -1,7 +1,7 @@
 #include "cru/ui/Window.hpp"
 
 #include "cru/common/Base.hpp"
-#include "cru/ui/WindowHost.hpp"
+#include "cru/ui/host/WindowHost.hpp"
 #include "cru/ui/render/Base.hpp"
 #include "cru/ui/render/StackLayoutRenderObject.hpp"
 
@@ -10,7 +10,7 @@ Window* Window::CreateOverlapped() { return new Window(); }
 
 Window::Window() : render_object_(new render::StackLayoutRenderObject()) {
   render_object_->SetAttachedControl(this);
-  window_host_ = std::make_unique<WindowHost>(this);
+  window_host_ = std::make_unique<host::WindowHost>(this);
 }
 
 Window::~Window() {}
diff --git a/src/ui/controls/TextControlService.hpp b/src/ui/controls/TextControlService.hpp
index 8ad87416..a7e4e440 100644
--- a/src/ui/controls/TextControlService.hpp
+++ b/src/ui/controls/TextControlService.hpp
@@ -12,7 +12,7 @@
 #include "cru/ui/DebugFlags.hpp"
 #include "cru/ui/ShortcutHub.hpp"
 #include "cru/ui/UiEvent.hpp"
-#include "cru/ui/WindowHost.hpp"
+#include "cru/ui/host/WindowHost.hpp"
 #include "cru/ui/render/CanvasRenderObject.hpp"
 #include "cru/ui/render/ScrollRenderObject.hpp"
 #include "cru/ui/render/TextRenderObject.hpp"
@@ -136,7 +136,7 @@ class TextControlService : public Object {
   }
 
   platform::gui::IInputMethodContext* GetInputMethodContext() {
-    WindowHost* host = this->control_->GetWindowHost();
+    host::WindowHost* host = this->control_->GetWindowHost();
     if (!host) return nullptr;
     platform::gui::INativeWindow* native_window = host->GetNativeWindow();
     if (!native_window) return nullptr;
diff --git a/src/ui/RoutedEventDispatch.hpp b/src/ui/host/RoutedEventDispatch.hpp
index de94a598..de94a598 100644
--- a/src/ui/RoutedEventDispatch.hpp
+++ b/src/ui/host/RoutedEventDispatch.hpp
diff --git a/src/ui/WindowHost.cpp b/src/ui/host/WindowHost.cpp
index b0908e4f..eac247c1 100644
--- a/src/ui/WindowHost.cpp
+++ b/src/ui/host/WindowHost.cpp
@@ -1,4 +1,4 @@
-#include "cru/ui/WindowHost.hpp"
+#include "cru/ui/host/WindowHost.hpp"
 
 #include "RoutedEventDispatch.hpp"
 #include "cru/common/Logger.hpp"
@@ -13,7 +13,7 @@
 
 #include <cstddef>
 
-namespace cru::ui {
+namespace cru::ui::host {
 using platform::gui::INativeWindow;
 using platform::gui::IUiApplication;
 
diff --git a/src/ui/render/RenderObject.cpp b/src/ui/render/RenderObject.cpp
index 09410113..a40ce9b8 100644
--- a/src/ui/render/RenderObject.cpp
+++ b/src/ui/render/RenderObject.cpp
@@ -3,7 +3,7 @@
 #include "cru/common/Logger.hpp"
 #include "cru/platform/graphics/util/Painter.hpp"
 #include "cru/ui/DebugFlags.hpp"
-#include "cru/ui/WindowHost.hpp"
+#include "cru/ui/host/WindowHost.hpp"
 
 #include <algorithm>
 #include <string>
@@ -303,7 +303,7 @@ std::u16string RenderObject::GetDebugPathInTree() const {
   return result;
 }
 
-void RenderObject::SetWindowHostRecursive(WindowHost* host) {
+void RenderObject::SetWindowHostRecursive(host::WindowHost* host) {
   if (window_host_ != nullptr) {
     detach_from_host_event_.Raise(nullptr);
   }