/**************************************************************************
* KWin - the KDE window manager                                          *
* This file is part of the KDE project.                                  *
*                                                                        *
* Copyright (C) 2013 Antonis Tsiapaliokas <kok3rs@gmail.com>             *
*                                                                        *
* This program is free software; you can redistribute it and/or modify   *
* it under the terms of the GNU General Public License as published by   *
* the Free Software Foundation; either version 2 of the License, or      *
* (at your option) any later version.                                    *
*                                                                        *
* This program 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 General Public License for more details.                           *
*                                                                        *
* You should have received a copy of the GNU General Public License      *
* along with this program.  If not, see <http://www.gnu.org/licenses/>.  *
**************************************************************************/

#include "compositing.h"

#include <KDE/KCModuleProxy>
#include <KConfigGroup>
#include <KDE/KSharedConfig>

#include <QDBusInterface>
#include <QDBusReply>
namespace KWin {
namespace Compositing {

Compositing::Compositing(QObject *parent)
    : QObject(parent)
{
}

bool Compositing::OpenGLIsUnsafe() {
    KConfigGroup kwinConfig(KSharedConfig::openConfig("kwinrc"), "Compositing");
    return kwinConfig.readEntry("OpenGLIsUnsafe", true);
}

bool Compositing::OpenGLIsBroken() {
    QDBusInterface interface(QStringLiteral("org.kde.kwin"), QStringLiteral("/Compositing"));
    KConfigGroup kwinConfig(KSharedConfig::openConfig("kwinrc"), "Compositing");

    QString oldBackend = kwinConfig.readEntry("Backend", "OpenGL");
    kwinConfig.writeEntry("Backend", "OpenGL");
    kwinConfig.sync();
    QDBusReply<bool> OpenGLIsBrokenReply = interface.call("OpenGLIsBroken");

    if (OpenGLIsBrokenReply.value()) {
        kwinConfig.writeEntry("Backend", oldBackend);
        kwinConfig.sync();
        return true;
    }

    kwinConfig.writeEntry("OpenGLIsUnsafe", false);
    kwinConfig.sync();
    return false;
}

}//end namespace Compositing
}//end namespace KWin