1 files changed, 28 insertions, 0 deletions
diff --git a/include/cru/platform/ui_applicaition.hpp b/include/cru/platform/ui_applicaition.hpp
new file mode 100644
index 00000000..1345d38c
--- /dev/null
+++ b/include/cru/platform/ui_applicaition.hpp
@@ -0,0 +1,28 @@
+#pragma once
+#include "cru/common/base.hpp"
+
+#include <chrono>
+#include <functional>
+
+namespace cru::platform {
+struct NativeWindow;
+struct GraphFactory;
+
+struct UiApplication : public virtual Interface {
+  static UiApplication* GetInstance();
+
+  virtual int Run() = 0;
+  virtual void Quit(int quite_code) = 0;
+
+  virtual void InvokeLater(const std::function<void()>& action) = 0;
+  virtual unsigned long SetTimeout(std::chrono::milliseconds milliseconds,
+                          const std::function<void()>& action) = 0;
+  virtual unsigned long SetInterval(std::chrono::milliseconds milliseconds,
+                           const std::function<void()>& action) = 0;
+  virtual void CancelTimer(unsigned long id) = 0;
+
+  virtual NativeWindow* CreateWindow() = 0;
+
+  virtual GraphFactory* GetGraphFactory() = 0;
+};
+}  // namespace cru::platform