// -*- c++ -*-

/* This file is part of the KDE project
 *
 * Copyright (C) 2000 Richard Moore <rich@kde.org>
 *               2000 Wynn Wilkes <wynnw@caldera.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#ifndef KJAVAAPPLETSERVER_H
#define KJAVAAPPLETSERVER_H

#include "kjavaprocess.h"
#include <QtCore/QObject>
#include <QtCore/QMap>
#include <QtCore/QSize>

/**
 * @short Communicates with a KJAS server to display and control Java applets.
 *
 * @author Richard J. Moore, rich@kde.org
 */

class KJavaAppletContext;
class KJavaAppletServerPrivate;
class JSStackFrame;

class KJavaAppletServer : public QObject
{
    Q_OBJECT

public:
    /**
     * Create the applet server.  These shouldn't be used directly,
     * use allocateJavaServer instead
     */
    KJavaAppletServer();
    ~KJavaAppletServer();

    /**
     * A factory method that returns the default server. This is the way this
     * class is usually instantiated.
     */
    static KJavaAppletServer *allocateJavaServer();

    /**
     * When you are done using your reference to the AppletServer,  you must
     * dereference it by calling freeJavaServer().
     */
    static void freeJavaServer();

    /**
     * This allows the KJavaAppletWidget to display some feedback in a QLabel
     * while the applet is being loaded.  If the java process could not be
     * started, an error message is displayed instead.
     */
    static QString getAppletLabel();

    /**
     * Create an applet context with the specified id.
     */
    void createContext(int contextId, KJavaAppletContext *context);

    /**
     * Destroy the applet context with the specified id. All the applets in the
     * context will be destroyed as well.
     */
    void destroyContext(int contextId);

    /**
     * Create an applet in the specified context with the specified id. The applet
     * name, class etc. are specified in the same way as in the HTML APPLET tag.
     */
    bool createApplet(int contextId, int appletId,
                      const QString &name, const QString &clazzName,
                      const QString &baseURL, const QString &user,
                      const QString &password, const QString &authname,
                      const QString &codeBase, const QString &jarFile,
                      QSize size, const QMap<QString, QString> &params,
                      const QString &windowTitle);

    /**
     * This should be called by the KJavaAppletWidget
     */
    void initApplet(int contextId, int appletId);

    /**
     * Destroy an applet in the specified context with the specified id.
     */
    void destroyApplet(int contextId, int appletId);

    /**
     * Start the specified applet.
     */
    void startApplet(int contextId, int appletId);

    /**
     * Stop the specified applet.
     */
    void stopApplet(int contextId, int appletId);

    /**
     * Show java console.
     */
    void showConsole();

    /**
     * Send data we got back from a KJavaDownloader back to the appropriate
     * class loader.
     */
    void sendURLData(int loaderID, int code, const QByteArray &data);
    /**
     * Removes KJavaDownloader from the list (deletes it too).
     */
    void removeDataJob(int loaderID);

    /**
     * Shut down the KJAS server.
     */
    void quit();
    KJavaProcess *javaProcess()
    {
        return process;
    }

    QString appletLabel();

    void waitForReturnData(JSStackFrame *);
    void endWaitForReturnData();

    bool getMember(QStringList &args, QStringList &ret_args);
    bool putMember(QStringList &args);
    bool callMember(QStringList &args, QStringList &ret_args);
    void derefObject(QStringList &args);

    bool usingKIO();
protected:
    void setupJava(KJavaProcess *p);

    KJavaProcess *process;

protected Q_SLOTS:
    void slotJavaRequest(const QByteArray &qb);
    void checkShutdown();
    void timerEvent(QTimerEvent *);
    void killTimers();

private:
    KJavaAppletServerPrivate *const d;

};

class PermissionDialog : public QObject
{
    Q_OBJECT
public:
    PermissionDialog(QWidget *);
    ~PermissionDialog();

    QString exec(const QString &cert, const QString &perm);

private Q_SLOTS:
    void clicked();

private:
    QString m_button;
};

#endif // KJAVAAPPLETSERVER_H
