/* 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.
 */

#include "kjavaappletwidget.h"
#include "kjavaappletcontext.h"

#include <klocalizedstring.h>
#include <QDebug>
#include <kparts/browserextension.h>
#include <kparts/liveconnectextension.h>

class KJavaAppletPrivate
{
public:
    bool    reallyExists;
    bool    failed;
    QString className;
    QString appName;
    QString baseURL;
    QString codeBase;
    QString archives;
    QSize   size;
    QString windowName;
    KJavaApplet::AppletState state;

    KJavaAppletWidget *UIwidget;
};

KJavaApplet::KJavaApplet(KJavaAppletWidget *_parent,
                         KJavaAppletContext *_context)
    : d(new KJavaAppletPrivate), params()
{

    d->UIwidget = _parent;
    d->state = UNKNOWN;
    d->failed = false;

    if (_context) {
        setAppletContext(_context);
    }

    d->reallyExists = false;
}

KJavaApplet::~KJavaApplet()
{
    if (d->reallyExists) {
        context->destroy(this);
    }

    delete d;
}

bool KJavaApplet::isCreated()
{
    return d->reallyExists;
}

void KJavaApplet::setAppletContext(KJavaAppletContext *_context)
{
    context = _context;
    context->registerApplet(this);
}

void KJavaApplet::setAppletClass(const QString &_className)
{
    d->className = _className;
}

QString &KJavaApplet::appletClass()
{
    return d->className;
}

QString &KJavaApplet::parameter(const QString &name)
{
    return params[ name ];
}

void KJavaApplet::setParameter(const QString &name, const QString &value)
{
    params.insert(name, value);
}

QMap<QString, QString> &KJavaApplet::getParams()
{
    return params;
}

void KJavaApplet::setBaseURL(const QString &baseURL)
{
    d->baseURL = baseURL;
}

QString &KJavaApplet::baseURL()
{
    return d->baseURL;
}

void KJavaApplet::setCodeBase(const QString &codeBase)
{
    d->codeBase = codeBase;
}

QString &KJavaApplet::codeBase()
{
    return d->codeBase;
}

void KJavaApplet::setSize(QSize size)
{
    d->size = size;
}

QSize KJavaApplet::size()
{
    return d->size;
}

void KJavaApplet::setArchives(const QString &_archives)
{
    d->archives = _archives;
}

QString &KJavaApplet::archives()
{
    return d->archives;
}

void KJavaApplet::resizeAppletWidget(int width, int height)
{
    // qDebug() << "KJavaApplet, id = " << id << ", ::resizeAppletWidget to " << width << ", " << height;

    QStringList sl;
    sl.push_back(QString::number(0));     // applet itself has id 0
    sl.push_back(QString("eval"));        // evaluate next script
    sl.push_back(QString::number(KParts::LiveConnectExtension::TypeString));
    sl.push_back(QString("this.setAttribute('WIDTH',%1);this.setAttribute('HEIGHT',%2)").arg(width).arg(height));
    jsData(sl);
}

void KJavaApplet::setAppletName(const QString &name)
{
    d->appName = name;
}

void KJavaApplet::setWindowName(const QString &title)
{
    d->windowName = title;
}

QString &KJavaApplet::getWindowName()
{
    return d->windowName;
}

QString &KJavaApplet::appletName()
{
    return d->appName;
}

void KJavaApplet::create()
{
    if (!context->create(this)) {
        setFailed();
    }
    d->reallyExists = true;
}

void KJavaApplet::init()
{
    context->init(this);
}

void KJavaApplet::start()
{
    context->start(this);
}

void KJavaApplet::stop()
{
    context->stop(this);
}

int KJavaApplet::appletId()
{
    return id;
}

void KJavaApplet::setAppletId(int _id)
{
    id = _id;
}

void KJavaApplet::stateChange(const int newStateInt)
{
    AppletState newState = (AppletState)newStateInt;
    bool ok = false;
    if (d->failed) {
        return;
    }
    switch (newState) {
    case CLASS_LOADED:
        ok = (d->state == UNKNOWN);
        break;
    case INSTANCIATED:
        ok = (d->state == CLASS_LOADED);
        if (ok) {
            showStatus(i18n("Initializing Applet \"%1\"...", appletName()));
        }
        break;
    case INITIALIZED:
        ok = (d->state == INSTANCIATED);
        if (ok) {
            showStatus(i18n("Starting Applet \"%1\"...", appletName()));
            start();
        }
        break;
    case STARTED:
        ok = (d->state == INITIALIZED || d->state == STOPPED);
        if (ok) {
            showStatus(i18n("Applet \"%1\" started", appletName()));
        }
        break;
    case STOPPED:
        ok = (d->state == INITIALIZED || d->state == STARTED);
        if (ok) {
            showStatus(i18n("Applet \"%1\" stopped", appletName()));
        }
        break;
    case DESTROYED:
        ok = true;
        break;
    default:
        break;
    }
    if (ok) {
        d->state = newState;
    } else {
        qCritical() << "KJavaApplet::stateChange : don't want to switch from state "
                    << d->state << " to " << newState << endl;
    }
}

void KJavaApplet::showStatus(const QString &msg)
{
    QStringList args;
    args << msg;
    context->processCmd("showstatus", args);
}

void KJavaApplet::setFailed()
{
    d->failed = true;
}

bool KJavaApplet::isAlive() const
{
    return (
               !d->failed
               && d->state >= INSTANCIATED
               && d->state < STOPPED
           );
}

KJavaApplet::AppletState KJavaApplet::state() const
{
    return d->state;
}

bool KJavaApplet::failed() const
{
    return d->failed;
}

