/*
  Copyright (c) 2007 Lubos Lunak <l.lunak@suse.cz>

  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, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

*/

#include "glibevents.h"

#ifdef HAVE_GLIB2

#include <QApplication>
#include <QAbstractEventDispatcher>
#include <kdebug.h>

GlibEvents::GlibEvents()
    {
    checkedEventLoop = false;
    g_main_context_ref( g_main_context_default());
    connect( &timer, SIGNAL( timeout()), SLOT( process()));
    // TODO Poll for now
    timer.start( 10 );
    }

GlibEvents::~GlibEvents()
    {
    g_main_context_unref( g_main_context_default());
    }

void GlibEvents::process()
    {
    if( !checkedEventLoop )
        {
        // If Qt is already running a Glib event loop, disable our own's timer
        if (QLatin1String(QAbstractEventDispatcher::instance()->metaObject()->className())
            == "QGuiEventDispatcherGlib")
               {
               kDebug(1430) << "Qt already providing Glib integration, dropping ours";
               timer.stop();
               }
            else
               kDebug(1430) << "Qt using pure Xlib event loop; keeping Glib integration active";

            checkedEventLoop = true;
        }
    if( g_main_depth() > 0 )
        return; // avoid reentrancy when Qt's Glib integration is used
    while( g_main_context_pending( g_main_context_default()))
        g_main_context_iteration( g_main_context_default(), false );
    }

#include "glibevents.moc"

#endif
