/****************************************************************************
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** Copyright (C) 2016 The Qt Company Ltd.
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** This file is part of the QtQml module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
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** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
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****************************************************************************/

#ifndef QQMLENGINECONTROLCLIENT_P_P_H
#define QQMLENGINECONTROLCLIENT_P_P_H

#include "qqmlenginecontrolclient_p.h"
#include "qqmldebugclient_p_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.
//

QT_BEGIN_NAMESPACE

class QQmlEngineControlClientPrivate : public QQmlDebugClientPrivate
{
    Q_DECLARE_PUBLIC(QQmlEngineControlClient)
public:
    enum MessageType {
        EngineAboutToBeAdded,
        EngineAdded,
        EngineAboutToBeRemoved,
        EngineRemoved
    };

    enum CommandType {
        StartWaitingEngine,
        StopWaitingEngine,
        InvalidCommand
    };

    QQmlEngineControlClientPrivate(QQmlDebugConnection *connection);

    void sendCommand(CommandType command, int engineId);

    struct EngineState {
        EngineState(CommandType command = InvalidCommand) : releaseCommand(command), blockers(0) {}
        CommandType releaseCommand;
        int blockers;
    };

    QHash<int, EngineState> blockedEngines;
};

QT_END_NAMESPACE

#endif // QQMLENGINECONTROLCLIENT_P_P_H