rewrite how events are held

inc/basic_widgets/impl/mouse_handler_impl.hpp

@@ -0,0 +1,45 @@
+#ifndef BWIDGETS_MOUSE_HANDLER_IMPL_HPP
+#define BWIDGETS_MOUSE_HANDLER_IMPL_HPP
+
+#include <basic_widgets/w/feat/mouse_handler.hpp>
+
+namespace bwidgets
+{
+    class MouseHandlerImpl : public MouseHandler
+    {
+    private:
+        const SDL_Rect* _area {nullptr};
+        bool            _hovered {false};
+        bool            _pushed {false};
+
+        std::function<void(const SDL_MouseButtonEvent&)> _click_handler;
+        std::function<void(const SDL_MouseMotionEvent&)> _motion_handler;
+
+    protected:
+        MouseHandlerImpl() = default;
+
+    public:
+        void
+        click_handler(std::function<void(const SDL_MouseButtonEvent&)> handler) override
+        {
+            _click_handler = std::move(handler);
+        }
+        void               disable_mouse_handler() override;
+        void               enable_mouse_handler(const SDL_Rect*) override;
+        [[nodiscard]] bool hovered() const override
+        {
+            return _hovered;
+        }
+        void mouse_motion_handler(
+          std::function<void(const SDL_MouseMotionEvent&)> handler) override
+        {
+            _motion_handler = std::move(handler);
+        }
+        [[nodiscard]] bool pushed() const override
+        {
+            return _pushed;
+        }
+    };
+}
+
+#endif