From 0f8f98b9005803ab154b43dcad0db1f292072a4d Mon Sep 17 00:00:00 2001
From: Yuqian Yang <crupest@crupest.life>
Date: Mon, 17 Nov 2025 12:54:55 +0800
Subject: Refactor window host.

---
 include/cru/ui/events/RoutedEvent.h | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

(limited to 'include/cru/ui/events/RoutedEvent.h')

diff --git a/include/cru/ui/events/RoutedEvent.h b/include/cru/ui/events/RoutedEvent.h
index aa3331a6..58e50d63 100644
--- a/include/cru/ui/events/RoutedEvent.h
+++ b/include/cru/ui/events/RoutedEvent.h
@@ -8,6 +8,8 @@ namespace cru::ui::events {
 // EventArgs must be reference because the IsHandled property must be settable.
 template <typename TEventArgs>
 class CRU_UI_API RoutedEvent {
+  friend controls::Window;
+
  public:
   static_assert(std::is_base_of_v<UiEventArgs, TEventArgs>,
                 "TEventArgs must be subclass of UiEventArgs.");
@@ -16,13 +18,29 @@ class CRU_UI_API RoutedEvent {
 
   using EventArgs = TEventArgs&;
 
+  explicit RoutedEvent(std::string name) : name_(std::move(name)) {}
+
+  std::string GetName() const { return name_; }
+
   IEvent<TEventArgs&>* Direct() { return &direct_; }
   IEvent<TEventArgs&>* Bubble() { return &bubble_; }
   IEvent<TEventArgs&>* Tunnel() { return &tunnel_; }
 
  private:
+  std::string name_;
+
   Event<TEventArgs&> direct_;
   Event<TEventArgs&> bubble_;
   Event<TEventArgs&> tunnel_;
 };
-}  // namespace cru::ui::event
+
+#define CRU_DEFINE_ROUTED_EVENT(name, arg_type)                 \
+ private:                                                       \
+  ::cru::ui::events::RoutedEvent<arg_type> name##Event_{#name}; \
+                                                                \
+ public:                                                        \
+  ::cru::ui::events::RoutedEvent<arg_type>* name##Event() {     \
+    return &name##Event_;                                       \
+  }
+
+}  // namespace cru::ui::events
-- 
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