AsyncFunctionState.h

Go to the documentation of this file.

#pragma once
 
#include "WaitStateBase.h"
 
#include <functional>
 
class AsyncFunctionState : public WaitStateBase
{
    Q_OBJECT
    Q_DISABLE_COPY(AsyncFunctionState)
 
public:
    using SetupFunction = std::function<void(AsyncFunctionState* state)>;
 
    AsyncFunctionState(const QString& stateName, QState* parent, SetupFunction setupFunction, int timeoutMsecs = 0);
 
    void complete() { waitComplete(); }
 
    void fail() { waitFailed(); }
 
    template<typename Func>
    void connectToCompletion(typename QtPrivate::FunctionPointer<Func>::Object* sender, Func signal)
    {
        _completionConnection = connect(sender, signal, this, [this]() {
            complete();
        });
    }
 
    template<typename Func, typename Slot>
    void connectToCompletion(typename QtPrivate::FunctionPointer<Func>::Object* sender, Func signal, Slot slot)
    {
        _completionConnection = connect(sender, signal, this, slot);
    }
 
protected:
    void connectWaitSignal() override;
    void disconnectWaitSignal() override;
    void onWaitEntered() override;
 
private:
    SetupFunction _setupFunction;
    QMetaObject::Connection _completionConnection;
};