SequenceState.h

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#pragma once
 
#include "QGCState.h"
 
#include <functional>
 
class SequenceState : public QGCState
{
    Q_OBJECT
    Q_DISABLE_COPY(SequenceState)
 
public:
    using StepAction = std::function<bool()>;
 
    struct Step {
        QString name;
        StepAction action;
    };
 
    SequenceState(const QString& stateName, QState* parent);
 
    void addStep(const QString& name, StepAction action);
 
    void addSteps(const QList<Step>& steps);
 
    int currentStepIndex() const { return _currentStep; }
 
    QString currentStepName() const;
 
    int stepCount() const { return _steps.size(); }
 
    QString failedStepName() const { return _failedStep; }
 
signals:
    void stepCompleted(const QString& stepName, int index);
 
protected:
    void onEnter() override;
 
private slots:
    void _executeNextStep();
 
private:
    QList<Step> _steps;
    int _currentStep = -1;
    QString _failedStep;
};