qpcsccard_p.h - mozsearch

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// Copyright (C) 2022 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef QPCSCCARD_P_H

#define QPCSCCARD_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "qpcsc_p.h"

#include "qndefmessage.h"

#include "qnearfieldtarget.h"

#include "ndef/qndefaccessfsm_p.h"

QT_BEGIN_NAMESPACE

class QTimer;

class QPcscCard : public QObject

    Q_OBJECT

public:

    QPcscCard(SCARDHANDLE handle, DWORD protocol, QObject *parent = nullptr);

    ~QPcscCard();

    bool isValid() const { return m_isValid; }

    void invalidate();

    bool checkCardPresent();

    Q_INVOKABLE void enableAutodelete();

    QByteArray readUid();

    int readMaxInputLength();

    bool supportsNdef() const { return m_supportsNdef; }

private:

    SCARDHANDLE m_handle;

    SCARD_IO_REQUEST m_ioPci;

    bool m_isValid = true;

    bool m_supportsNdef;

    bool m_autodelete = false;

    // Indicates that an _automatic_ transaction was started

    bool m_inAutoTransaction = false;

    QTimer *m_keepAliveTimer;

    std::unique_ptr<QNdefAccessFsm> m_tagDetectionFsm;

    enum AutoTransaction { NoAutoTransaction, StartAutoTransaction };

    QPcsc::RawCommandResult sendCommand(const QByteArray &command, AutoTransaction autoTransaction);

    void performNdefDetection();

    class Transaction

    public:

        Transaction(QPcscCard *card);

        ~Transaction();

    private:

        QPcscCard *m_card;

        bool m_initiated = false;

};

public Q_SLOTS:

    void onDisconnectRequest();

    void onTargetDestroyed();

    void onSendCommandRequest(const QNearFieldTarget::RequestId &request,

                              const QByteArray &command);

    void onReadNdefMessagesRequest(const QNearFieldTarget::RequestId &request);

    void onWriteNdefMessagesRequest(const QNearFieldTarget::RequestId &request,

                                    const QList<QNdefMessage> &messages);

private Q_SLOTS:

    void onKeepAliveTimeout();

Q_SIGNALS:

    void disconnected();

    void invalidated();

    void requestCompleted(const QNearFieldTarget::RequestId &request,

                          QNearFieldTarget::Error reason, const QVariant &result);

    void ndefMessageRead(const QNdefMessage &message);

};

QT_END_NAMESPACE

#endif // QPCSCCARD_P_H