/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#include "eventfilteringmainwindow.h"

#ifdef Q_OS_WIN
#include <windows.h>
#endif

#include <QtDebug>
#include <QEvent>
#include <QCoreApplication>

namespace Core {
namespace Internal {

/* The notification signal is delayed by using a custom event
 * as otherwise device removal is not detected properly
 * (devices are still present in the registry. */

class DeviceNotifyEvent : public QEvent {
public:
    explicit DeviceNotifyEvent(int id) : QEvent(static_cast<QEvent::Type>(id)) {}
};

EventFilteringMainWindow::EventFilteringMainWindow() :
        m_deviceEventId(QEvent::registerEventType(QEvent::User + 2))
{
}

#ifdef Q_OS_WIN
bool EventFilteringMainWindow::event(QEvent *event)
{
    if (event->type() == m_deviceEventId) {
        event->accept();
        emit deviceChange();
        return true;
    }
    return QMainWindow::event(event);
}

bool EventFilteringMainWindow::winEvent(MSG *msg, long *result)
{
    if (msg->message == WM_DEVICECHANGE) {
        if (msg->wParam & 0x7 /* DBT_DEVNODES_CHANGED */) {
            *result = TRUE;
            QCoreApplication::postEvent(this, new DeviceNotifyEvent(m_deviceEventId));
        }
    }
    return false;
}
#endif

} // namespace Internal
} // namespace Core

