1 files changed, 45 insertions, 0 deletions
diff --git a/include/cru/ui/controls/RootControl.hpp b/include/cru/ui/controls/RootControl.hpp
new file mode 100644
index 00000000..53e69e7c
--- /dev/null
+++ b/include/cru/ui/controls/RootControl.hpp
@@ -0,0 +1,45 @@
+#pragma once
+#include "LayoutControl.hpp"
+
+#include "cru/common/Base.hpp"
+#include "cru/platform/gui/Base.hpp"
+#include "cru/ui/Base.hpp"
+
+namespace cru::ui::controls {
+class RootControl : public LayoutControl {
+ protected:
+  explicit RootControl(Control* attached_control);
+
+ public:
+  CRU_DELETE_COPY(RootControl)
+  CRU_DELETE_MOVE(RootControl)
+  ~RootControl() override;
+
+ public:
+  render::RenderObject* GetRenderObject() const override;
+
+  void EnsureWindowCreated();
+
+  // If create is false and native window is not create, it will not be created
+  // and shown.
+  void Show(bool create = true);
+
+  Rect GetRect();
+  void SetRect(const Rect& rect);
+
+ protected:
+  virtual gsl::not_null<platform::gui::INativeWindow*> CreateNativeWindow(
+      gsl::not_null<host::WindowHost*> host,
+      platform::gui::INativeWindow* parent) = 0;
+
+ private:
+  platform::gui::INativeWindow* GetNativeWindow(bool create);
+
+ private:
+  std::unique_ptr<host::WindowHost> window_host_;
+
+  std::unique_ptr<render::StackLayoutRenderObject> render_object_;
+
+  Control* attached_control_;
+};
+}  // namespace cru::ui::controls