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# qnp.h

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

    /****************************************************************************
    ** $Id:  qt/qnp.h   3.0.0   edited Jul 23 12:02 $
    **
    ** Definition of Qt extension classes for Netscape Plugin support.
    **
    ** Created : 970601
    **
    ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part 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
    ** not clear to you.
    **
    **********************************************************************/

    #ifndef QNP_H
    #define QNP_H

    #ifndef QT_H
    #include "qwidget.h"
    #endif // QT_H

    struct _NPInstance;
    struct _NPStream;
    class QNPInstance;

    class QNPStream {
    public:
        ~QNPStream();

        const char* url() const;
        uint end() const;
        uint lastModified() const;

        const char* type() const;
        bool seekable() const;
        bool okay() const;
        bool complete() const;

        void requestRead(int offset, uint length);
        int write( int len, void* buffer );

        QNPInstance* instance() { return inst; }
        QNPStream(QNPInstance*,const char*,_NPStream*,bool);
        void setOkay(bool);
        void setComplete(bool);

    private:
        QNPInstance* inst;
        _NPStream* stream;
        QString mtype;
        int seek:1;
        int isokay:1;
        int iscomplete:1;
    };

    class QNPWidget : public QWidget {
        Q_OBJECT
    public:
        QNPWidget();
        ~QNPWidget();

        void setWindow(bool);
        void unsetWindow();
        virtual void enterInstance();
        virtual void leaveInstance();

        QNPInstance* instance();

    private:
        WId saveWId;
        _NPInstance* pi;
    };

    class QNPInstance : public QObject {
        Q_OBJECT
    public:
        ~QNPInstance();

        // Arguments passed to EMBED
        int argc() const;
        const char* argn(int) const;
        const char* argv(int) const;
        enum Reason {
            ReasonDone = 0,
            ReasonBreak = 1,
            ReasonError = 2,
            ReasonUnknown = -1
        };
        const char* arg(const char* name) const;
        enum InstanceMode { Embed=1, Full=2, Background=3 };
        InstanceMode mode() const;

        // The browser's name
        const char* userAgent() const;

        // Your window.
        virtual QNPWidget* newWindow();
        QNPWidget* widget();

        // Incoming streams (SRC=... tag).
        // Defaults ignore data.
        enum StreamMode { Normal=1, Seek=2, AsFile=3, AsFileOnly=4 };
        virtual bool newStreamCreated(QNPStream*, StreamMode& smode);
        virtual int writeReady(QNPStream*);
        virtual int write(QNPStream*, int offset, int len, void* buffer);
        virtual void streamDestroyed(QNPStream*);

        void status(const char* msg);
        void getURLNotify(const char* url, const char* window=0, void*data=0);

        void getURL(const char* url, const char* window=0);
        void postURL(const char* url, const char* window,
    	     uint len, const char* buf, bool file);

        QNPStream* newStream(const char* mimetype, const char* window,
    	bool as_file=FALSE);
        virtual void streamAsFile(QNPStream*, const char* fname);

        void* getJavaPeer() const;

        virtual void notifyURL(const char* url, Reason r, void* notifyData);
        virtual bool printFullPage();
        virtual void print(QPainter*);

    protected:
        QNPInstance();

    private:
        friend class QNPStream;
        _NPInstance* pi;
    };

    class QNPlugin {
    public:
        // Write this to return your QNPlugin derived class.
        static QNPlugin* create();

        static QNPlugin* actual();

        virtual ~QNPlugin();

        void getVersionInfo(int& plugin_major, int& plugin_minor,
    	     int& browser_major, int& browser_minor);

        virtual QNPInstance* newInstance()=0;
        virtual const char* getMIMEDescription() const=0;
        virtual const char* getPluginNameString() const=0;
        virtual const char* getPluginDescriptionString() const=0;

        virtual void* getJavaClass();
        virtual void unuseJavaClass();
        void* getJavaEnv() const;

    protected:
        QNPlugin();
    };

    #endif  // QNP_H