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# qnetworkprotocol.h

This is the verbatim text of the qnetworkprotocol.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id:  qt/qnetworkprotocol.h   3.0.4   edited Oct 12 2001 $
    **
    ** Definition of QNetworkProtocol class
    **
    ** Created : 950429
    **
    ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the kernel module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** licenses may use this file in accordance with the Qt Commercial License
    ** Agreement provided with the Software.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    **   information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/qpl/ for QPL licensing information.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
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    **
    **********************************************************************/

    #ifndef QNETWORKPROTOCOL_H
    #define QNETWORKPROTOCOL_H

    #ifndef QT_H
    #include "qurlinfo.h"
    #include "qstring.h"
    #include "qdict.h"
    #include "qobject.h"
    #endif // QT_H

    #ifndef QT_NO_NETWORKPROTOCOL

    class QNetworkProtocol;
    class QNetworkOperation;
    class QTimer;
    class QUrlOperator;
    class QNetworkProtocolPrivate;
    template <class T> class QValueList;

    class Q_EXPORT QNetworkProtocolFactoryBase
    {
    public:
       virtual QNetworkProtocol *createObject() = 0;

    };

    template< class Protocol >
    class QNetworkProtocolFactory : public QNetworkProtocolFactoryBase
    {
    public:
        QNetworkProtocol *createObject() {
    	return new Protocol;
        }

    };

    typedef QDict< QNetworkProtocolFactoryBase > QNetworkProtocolDict;

    class Q_EXPORT QNetworkProtocol : public QObject
    {
        Q_OBJECT

    public:
        enum State {
    	StWaiting = 0,
    	StInProgress,
    	StDone,
    	StFailed,
    	StStopped
        };

        enum Operation {
    	OpListChildren = 1,
    	OpMkDir = 2,
    	OpMkdir = OpMkDir, // ### remove in 4.0
    	OpRemove = 4,
    	OpRename = 8,
    	OpGet = 32,
    	OpPut = 64
        };

        enum ConnectionState {
    	ConHostFound,
    	ConConnected,
    	ConClosed
        };

        enum Error {
    	// no error
    	NoError = 0,
    	// general errors
    	ErrValid,
    	ErrUnknownProtocol,
    	ErrUnsupported,
    	ErrParse,
    	// errors on connect
    	ErrLoginIncorrect,
    	ErrHostNotFound,
    	// protocol errors
    	ErrListChildren,
    	ErrListChlidren = ErrListChildren, // ### remove in 4.0
    	ErrMkDir,
    	ErrMkdir = ErrMkDir, // ### remove in 4.0
    	ErrRemove,
    	ErrRename,
    	ErrGet,
    	ErrPut,
    	ErrFileNotExisting,
    	ErrPermissionDenied
        };

        QNetworkProtocol();
        virtual ~QNetworkProtocol();

        virtual void setUrl( QUrlOperator *u );

        virtual void setAutoDelete( bool b, int i = 10000 );
        bool autoDelete() const;

        static void registerNetworkProtocol( const QString &protocol,
    					 QNetworkProtocolFactoryBase *protocolFactory );
        static QNetworkProtocol *getNetworkProtocol( const QString &protocol );
        static bool hasOnlyLocalFileSystem();

        virtual int supportedOperations() const;
        virtual void addOperation( QNetworkOperation *op );

        QUrlOperator *url() const;
        QNetworkOperation *operationInProgress() const;
        virtual void clearOperationQueue();
        virtual void stop();

    signals:
        void data( const QByteArray &, QNetworkOperation *res );
        void connectionStateChanged( int state, const QString &data );
        void finished( QNetworkOperation *res );
        void start( QNetworkOperation *res );
        void newChildren( const QValueList<QUrlInfo> &, QNetworkOperation *res );
        void newChild( const QUrlInfo &, QNetworkOperation *res );
        void createdDirectory( const QUrlInfo &, QNetworkOperation *res );
        void removed( QNetworkOperation *res );
        void itemChanged( QNetworkOperation *res );
        void dataTransferProgress( int bytesDone, int bytesTotal, QNetworkOperation *res );

    protected:
        virtual void processOperation( QNetworkOperation *op );
        virtual void operationListChildren( QNetworkOperation *op );
        virtual void operationMkDir( QNetworkOperation *op );
        virtual void operationRemove( QNetworkOperation *op );
        virtual void operationRename( QNetworkOperation *op );
        virtual void operationGet( QNetworkOperation *op );
        virtual void operationPut( QNetworkOperation *op );
        virtual void operationPutChunk( QNetworkOperation *op );
        virtual bool checkConnection( QNetworkOperation *op );

    private:
        QNetworkProtocolPrivate *d;

    private slots:
        void processNextOperation( QNetworkOperation *old );
        void startOps();
        void emitNewChildren( const QUrlInfo &i, QNetworkOperation *op );

        void removeMe();

    };

    class QNetworkOperationPrivate;

    class Q_EXPORT QNetworkOperation : public QObject
    {
        Q_OBJECT
        friend class QUrlOperator;

    public:
        QNetworkOperation( QNetworkProtocol::Operation operation,
    		    const QString &arg0, const QString &arg1,
    		    const QString &arg2 );
        QNetworkOperation( QNetworkProtocol::Operation operation,
    		    const QByteArray &arg0, const QByteArray &arg1,
    		    const QByteArray &arg2 );
        ~QNetworkOperation();

        void setState( QNetworkProtocol::State state );
        void setProtocolDetail( const QString &detail );
        void setErrorCode( int ec );
        void setArg( int num, const QString &arg );
        void setRawArg( int num, const QByteArray &arg );

        QNetworkProtocol::Operation operation() const;
        QNetworkProtocol::State state() const;
        QString arg( int num ) const;
        QByteArray rawArg( int num ) const;
        QString protocolDetail() const;
        int errorCode() const;

        void free();

    private slots:
        void deleteMe();

    private:
        QByteArray &raw( int num ) const;
        QNetworkOperationPrivate *d;

    };

    #endif // QT_NO_NETWORKPROTOCOL

    #endif // QNETWORKPROTOCOL_H