RollbackState.h

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#pragma once
 
#include "QGCState.h"
 
#include <functional>
 
class RollbackState : public QGCState
{
    Q_OBJECT
    Q_DISABLE_COPY(RollbackState)
 
public:
    using ForwardAction = std::function<bool()>;
 
    using RollbackAction = std::function<void()>;
 
    RollbackState(const QString& stateName, QState* parent,
                  ForwardAction forwardAction, RollbackAction rollbackAction);
 
    bool wasRolledBack() const { return _wasRolledBack; }
 
    bool rollbackSucceeded() const { return _rollbackSucceeded; }
 
signals:
    void forwardSucceeded();
 
    void forwardFailed();
 
    void rollingBack();
 
    void rollbackComplete();
 
protected:
    void onEnter() override;
 
private:
    ForwardAction _forwardAction;
    RollbackAction _rollbackAction;
    bool _wasRolledBack = false;
    bool _rollbackSucceeded = false;
};