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1 files changed, 23 insertions, 0 deletions

diff --git a/include/cru/ui/events/FocusChangeEventArgs.hpp b/include/cru/ui/events/FocusChangeEventArgs.hpp
new file mode 100644
index 00000000..0e65c6e0
--- /dev/null
+++ b/include/cru/ui/events/FocusChangeEventArgs.hpp
@@ -0,0 +1,23 @@
+#pragma once
+#include "UiEventArgs.hpp"
+
+namespace cru::ui::events {
+
+class FocusChangeEventArgs : public UiEventArgs {
+ public:
+  FocusChangeEventArgs(Object* sender, Object* original_sender,
+                       const bool is_window = false)
+      : UiEventArgs(sender, original_sender), is_window_(is_window) {}
+  FocusChangeEventArgs(const FocusChangeEventArgs& other) = default;
+  FocusChangeEventArgs(FocusChangeEventArgs&& other) = default;
+  FocusChangeEventArgs& operator=(const FocusChangeEventArgs& other) = default;
+  FocusChangeEventArgs& operator=(FocusChangeEventArgs&& other) = default;
+  ~FocusChangeEventArgs() override = default;
+
+  // Return whether the focus change is caused by the window-wide focus change.
+  bool IsWindow() const { return is_window_; }
+
+ private:
+  bool is_window_;
+};
+}  // namespace cru::ui::event