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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QCOPCHANNEL_QWS_H
#define QCOPCHANNEL_QWS_H

#include <QtCore/qobject.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_COP

class QWSClient;
class QCopChannelPrivate;

class Q_GUI_EXPORT QCopChannel : public QObject
{
    Q_OBJECT
public:
    explicit QCopChannel(const QString& channel, QObject *parent=0);
#ifdef QT3_SUPPORT
    QT3_SUPPORT_CONSTRUCTOR QCopChannel(const QString& channel, QObject *parent, const char *name);
#endif
    virtual ~QCopChannel();

    QString channel() const;

    static bool isRegistered(const QString&  channel);
    static bool send(const QString& channel, const QString& msg);
    static bool send(const QString& channel, const QString& msg,
                      const QByteArray &data);

    static bool flush();

    static void sendLocally( const QString& ch, const QString& msg,
                               const QByteArray &data);
    static void reregisterAll();

    virtual void receive(const QString& msg, const QByteArray &data);

Q_SIGNALS:
    void received(const QString& msg, const QByteArray &data);

private:
    void init(const QString& channel);

    // server side
    static void registerChannel(const QString& ch, QWSClient *cl);
    static void detach(QWSClient *cl);
    static void answer(QWSClient *cl, const QString& ch,
                        const QString& msg, const QByteArray &data);
    // client side
    QCopChannelPrivate* d;

    friend class QWSServer;
    friend class QWSServerPrivate;
    friend class QApplication;
};

#endif // QT_NO_COP

QT_END_NAMESPACE

QT_END_HEADER

#endif // QCOPCHANNEL_QWS_H