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/**********************************************************************
Audacity: A Digital Audio Editor
ProjectFormatExtensionsRegistry.h
Dmitry Vedenko
**********************************************************************/
#pragma once
#include <mutex>
#include <functional>
#include "ClientData.h"
#include "ProjectFormatVersion.h"
class AudacityProject;
//! The class that allows evaluating the minimum version of Audacity required to support the project
class PROJECT_API ProjectFormatExtensionsRegistry final
: public ClientData::Base
{
public:
using ProjectVersionResolver = ProjectFormatVersion (*)(const AudacityProject&);
static const ProjectFormatExtensionsRegistry& Get();
//! Returns the minimum possible version that can be used to save the project
ProjectFormatVersion GetRequiredVersion(const AudacityProject& project) const;
//! A struct to register the project extension that requires a different project version
struct PROJECT_API Extension final
{
Extension(ProjectVersionResolver resolver);
};
private:
void Register(ProjectVersionResolver resolver);
std::vector<ProjectVersionResolver> mRegisteredExtensions;
};
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