/* 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 "kjavaappletserver.h"

#include <kwindowsystem.h>
#include "kjavaappletviewer_debug.h"
#include <klocalizedstring.h>

#include <QLabel>

#include "../config-khtml.h"

#if !HAVE_X11
#define QXEmbed QWidget
#endif

// For future expansion
class KJavaAppletWidgetPrivate
{
    friend class KJavaAppletWidget;
private:
    QLabel *tmplabel;
};

int KJavaAppletWidget::appletCount = 0;

KJavaAppletWidget::KJavaAppletWidget(QWidget *parent)
    : QX11EmbedContainer(parent),
      d(new KJavaAppletWidgetPrivate)
{
    //setProtocol(QXEmbed::XPLAIN);

    m_applet = new KJavaApplet(this);

    d->tmplabel = new QLabel(this);
    d->tmplabel->setText(KJavaAppletServer::getAppletLabel());
    d->tmplabel->setAlignment(Qt::AlignCenter);
    d->tmplabel->setWordWrap(true);
    d->tmplabel->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
    d->tmplabel->show();

    m_swallowTitle = QStringLiteral("KJAS Applet - Ticket number %1").arg(appletCount++);
    m_applet->setWindowName(m_swallowTitle);
}

KJavaAppletWidget::~KJavaAppletWidget()
{
    delete m_applet;
    delete d;
}

void KJavaAppletWidget::showApplet()
{
#if HAVE_X11
    connect(KWindowSystem::self(), SIGNAL(windowAdded(WId)),
            this,  SLOT(setWindow(WId)));

    //Now we send applet info to the applet server
    if (!m_applet->isCreated()) {
        m_applet->create();
    }
#endif
}

void KJavaAppletWidget::setWindow(WId w)
{
#pragma message ("Revive QX11EmbedContainer")
#if 0
    //make sure that this window has the right name, if so, embed it...
    KWindowInfo w_info = KWindowSystem::windowInfo(w, NET::WMVisibleName | NET::WMName);
    if (m_swallowTitle == w_info.name() ||
            m_swallowTitle == w_info.visibleName()) {
        KWindowSystem::setState(w, NET::Hidden | NET::SkipTaskbar | NET::SkipPager);
        // qCDebug(KJAVAAPPLETVIEWER_LOG) << "swallowing our window: " << m_swallowTitle
                << ", window id = " << w;
        delete d->tmplabel;
        d->tmplabel = 0;

        // disconnect from KWM events
        disconnect(KWindowSystem::self(), SIGNAL(windowAdded(WId)),
                   this,  SLOT(setWindow(WId)));

        embedClient(w);
        setFocus();
    }
#else
    //TODO
#endif
}

QSize KJavaAppletWidget::sizeHint() const
{
    // qCDebug(KJAVAAPPLETVIEWER_LOG) << "KJavaAppletWidget::sizeHint()";
    QSize rval = QX11EmbedContainer::sizeHint();

    if (rval.width() == 0 || rval.height() == 0) {
        if (width() != 0 && height() != 0) {
            rval = QSize(width(), height());
        }
    }

    // qCDebug(KJAVAAPPLETVIEWER_LOG) << "returning: (" << rval.width() << ", " << rval.height() << ")";

    return rval;
}

void KJavaAppletWidget::resize(int w, int h)
{
    if (d->tmplabel) {
        d->tmplabel->resize(w, h);
        m_applet->setSize(QSize(w, h));
    }

    QX11EmbedContainer::resize(w, h);
}

void KJavaAppletWidget::showEvent(QShowEvent *e)
{
    QX11EmbedContainer::showEvent(e);
    if (!applet()->isCreated() && !applet()->appletClass().isEmpty()) {
        // delayed showApplet
        if (applet()->size().width() <= 0) {
            applet()->setSize(sizeHint());
        }
        showApplet();
    }
}

