Repo created

libs/editor/editor_storage.hpp

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+#pragma once
+
+#include <mutex>
+
+#include <pugixml.hpp>
+
+namespace editor
+{
+// Editor storage interface.
+class StorageBase
+{
+public:
+  virtual ~StorageBase() = default;
+
+  virtual bool Save(pugi::xml_document const & doc) = 0;
+  virtual bool Load(pugi::xml_document & doc) = 0;
+  virtual bool Reset() = 0;
+};
+
+// Class which saves/loads edits to/from local file.
+// Note: this class IS thread-safe.
+class LocalStorage : public StorageBase
+{
+public:
+  // StorageBase overrides:
+  bool Save(pugi::xml_document const & doc) override;
+  bool Load(pugi::xml_document & doc) override;
+  bool Reset() override;
+
+private:
+  std::mutex m_mutex;
+};
+
+// Class which saves/loads edits to/from xml_document class instance.
+// Note: this class is NOT thread-safe.
+class InMemoryStorage : public StorageBase
+{
+public:
+  // StorageBase overrides:
+  bool Save(pugi::xml_document const & doc) override;
+  bool Load(pugi::xml_document & doc) override;
+  bool Reset() override;
+
+private:
+  pugi::xml_document m_doc;
+};
+}  // namespace editor