1 files changed, 67 insertions, 0 deletions
diff --git a/include/cru/platform/native/Window.hpp b/include/cru/platform/native/Window.hpp
new file mode 100644
index 00000000..1fcac1fc
--- /dev/null
+++ b/include/cru/platform/native/Window.hpp
@@ -0,0 +1,67 @@
+#pragma once
+#include "../Resource.hpp"
+#include "Base.hpp"
+#include "cru/common/Event.hpp"
+
+#include <string_view>
+
+namespace cru::platform::native {
+// Represents a native window, which exposes some low-level events and
+// operations.
+//
+// Usually you save an INativeWindowResolver after creating a window. Because
+// window may be destroyed when user do certain actions like click the close
+// button. Then the INativeWindow instance is destroyed and
+// INativeWindowResolver::Resolve return nullptr to indicate the fact.
+struct INativeWindow : virtual INativeResource {
+  virtual std::shared_ptr<INativeWindowResolver> GetResolver() = 0;
+
+  virtual void Close() = 0;
+
+  virtual INativeWindow* GetParent() = 0;
+
+  virtual bool IsVisible() = 0;
+  virtual void SetVisible(bool is_visible) = 0;
+
+  virtual Size GetClientSize() = 0;
+  virtual void SetClientSize(const Size& size) = 0;
+
+  // Get the rect of the window containing frame.
+  // The lefttop of the rect is relative to screen lefttop.
+  virtual Rect GetWindowRect() = 0;
+
+  // Set the rect of the window containing frame.
+  // The lefttop of the rect is relative to screen lefttop.
+  virtual void SetWindowRect(const Rect& rect) = 0;
+
+  // Relative to client lefttop.
+  virtual Point GetMousePosition() = 0;
+
+  virtual bool CaptureMouse() = 0;
+  virtual bool ReleaseMouse() = 0;
+
+  virtual void SetCursor(std::shared_ptr<ICursor> cursor) = 0;
+
+  virtual void RequestRepaint() = 0;
+
+  // Remember to call EndDraw on return value and destroy it.
+  virtual std::unique_ptr<graph::IPainter> BeginPaint() = 0;
+
+  virtual IEvent<std::nullptr_t>* DestroyEvent() = 0;
+  virtual IEvent<std::nullptr_t>* PaintEvent() = 0;
+  virtual IEvent<Size>* ResizeEvent() = 0;
+  virtual IEvent<FocusChangeType>* FocusEvent() = 0;
+  virtual IEvent<MouseEnterLeaveType>* MouseEnterLeaveEvent() = 0;
+  virtual IEvent<Point>* MouseMoveEvent() = 0;
+  virtual IEvent<NativeMouseButtonEventArgs>* MouseDownEvent() = 0;
+  virtual IEvent<NativeMouseButtonEventArgs>* MouseUpEvent() = 0;
+  virtual IEvent<NativeKeyEventArgs>* KeyDownEvent() = 0;
+  virtual IEvent<NativeKeyEventArgs>* KeyUpEvent() = 0;
+};
+
+// See INativeWindow for more info.
+struct INativeWindowResolver : virtual INativeResource {
+  // Think twice before you save the return value.
+  virtual INativeWindow* Resolve() = 0;
+};
+}  // namespace cru::platform::native