AusweisApp2/src/global/Initializer.h

49 lines
969 B
C++

/*
* \brief Initializer to register a lambda that will be executed if QCoreApplication is ready.
*
* \copyright Copyright (c) 2017-2019 Governikus GmbH & Co. KG, Germany
*/
#pragma once
#include <functional>
#include <list>
class test_Initializer;
namespace governikus
{
class Initializer
{
private:
friend class ::test_Initializer;
std::list<std::function<void()> > mRegisteredFunctions;
protected:
Initializer() = default;
~Initializer() = default;
public:
static Initializer& getInstance();
struct Entry final
{
explicit Entry(const std::function<void()>& pRegister)
{
Initializer::getInstance().add(pRegister);
}
Entry(const Entry& pCopy) = delete;
Entry(const Entry&& pCopy) = delete;
Entry& operator=(const Entry& pCopy) = delete;
Entry& operator=(const Entry&& pCopy) = delete;
};
void init(); // No need to call this!
void add(const std::function<void()>& pRegister);
};
} // namespace governikus