Create WindowEvents

include/rewindow/types/window.h

@@ -90,6 +90,9 @@ namespace ReWindow {
         bool fullscreen_mode = false;
         bool vsync = false;
 
+    protected:
+        bool focused = true;
+
     protected:
         std::string title = "Redacted Window";
 
@@ -97,6 +100,28 @@ namespace ReWindow {
         RenderingEngine renderingengine;
     };
 
+    class WindowEvents {
+    public:
+        WindowEvents() = default;
+    public:
+        Event<> OnOpenEvent;
+        Event<> OnClosingEvent;
+        Event<RWindowEvent> OnFocusLostEvent;
+        Event<RWindowEvent> OnFocusGainEvent;
+        Event<float> OnRefreshEvent;
+        Event<WindowResizeRequestEvent> OnResizeRequestEvent;
+        Event<InputServiceEvent> OnInputServiceEvent;
+    public:
+        virtual void OnOpen() {};
+        virtual void OnClosing() {};
+        virtual void OnFocusLost(const RWindowEvent& e) {};
+        virtual void OnFocusGain(const RWindowEvent& e) {};
+        virtual void OnRefresh(float elapsed) {};
+        virtual void OnResizeSuccess() {};
+        virtual bool OnResizeRequest(const WindowResizeRequestEvent& e) { return true; }
+        virtual void OnInput(const InputServiceEvent& e) {};
+    };
+
 
 
     // This may be better split into multiple component classes.