1 files changed, 44 insertions, 0 deletions
diff --git a/libs/installer_bsplugins/src/GUI/IStateSettings.h b/libs/installer_bsplugins/src/GUI/IStateSettings.h
new file mode 100644
index 0000000..15425a0
--- /dev/null
+++ b/libs/installer_bsplugins/src/GUI/IStateSettings.h
@@ -0,0 +1,44 @@
+#ifndef GUI_ISTATESETTINGS_H
+#define GUI_ISTATESETTINGS_H
+
+#include <concepts>
+
+namespace GUI
+{
+
+template <class W>
+class IStateSettings
+{
+public:
+  virtual void saveState(const W* widget)    = 0;
+  virtual void restoreState(W* widget) const = 0;
+};
+
+template <class W>
+class [[nodiscard]] StateSaver final
+{
+public:
+  StateSaver(IStateSettings<W>& s, W* w) : m_Settings{s}, m_Widget{w}
+  {
+    m_Settings.restoreState(m_Widget);
+  }
+
+  StateSaver(const StateSaver<W>&) = delete;
+  StateSaver(StateSaver<W>&&)      = delete;
+
+  ~StateSaver() { m_Settings.saveState(m_Widget); }
+
+  StateSaver<W>& operator=(const StateSaver<W>&) = delete;
+  StateSaver<W>& operator=(StateSaver<W>&&)      = delete;
+
+private:
+  IStateSettings<W>& m_Settings;
+  W* m_Widget;
+};
+
+template <class W, class I = IStateSettings<W>>
+StateSaver(I&, W*) -> StateSaver<W>;
+
+}  // namespace GUI
+
+#endif  // GUI_ISTATESETTINGS_H