/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtPositioning module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QGEOPOSITIONINFOSOURCEWINRT_H
#define QGEOPOSITIONINFOSOURCEWINRT_H

#include "qgeopositioninfosource.h"
#include "qgeopositioninfo.h"

#include <QTimer>

#include <EventToken.h>
#include <wrl.h>

namespace ABI {
    namespace Windows {
        namespace Devices {
            namespace Geolocation{
                struct IGeolocator;
                struct IPositionChangedEventArgs;
                struct IStatusChangedEventArgs;
            }
        }
    }
}

QT_BEGIN_NAMESPACE

class QGeoPositionInfoSourceWinrt : public QGeoPositionInfoSource
{
    Q_OBJECT
public:
    QGeoPositionInfoSourceWinrt(QObject *parent = 0);
    ~QGeoPositionInfoSourceWinrt();

    QGeoPositionInfo lastKnownPosition(bool fromSatellitePositioningMethodsOnly = false) const;
    PositioningMethods supportedPositioningMethods() const;

    void setPreferredPositioningMethods(PositioningMethods methods);

    void setUpdateInterval(int msec);
    int minimumUpdateInterval() const;
    Error error() const;

    HRESULT onPositionChanged(ABI::Windows::Devices::Geolocation::IGeolocator *locator,
                              ABI::Windows::Devices::Geolocation::IPositionChangedEventArgs *args);

public slots:
    void startUpdates();
    void stopUpdates();

    void requestUpdate(int timeout = 0);

private slots:
    void stopHandler();
    void virtualPositionUpdate();
    void singleUpdateTimeOut();
private:
    bool startHandler();

    Q_DISABLE_COPY(QGeoPositionInfoSourceWinrt)
    void setError(QGeoPositionInfoSource::Error positionError);
    bool checkNativeState();

    Microsoft::WRL::ComPtr<ABI::Windows::Devices::Geolocation::IGeolocator> m_locator;
    EventRegistrationToken m_positionToken;

    QGeoPositionInfo m_lastPosition;
    QGeoPositionInfoSource::Error m_positionError;

    //EventRegistrationToken m_StatusToken;
    QTimer m_periodicTimer;
    QTimer m_singleUpdateTimer;
    bool m_updatesOngoing;
};

QT_END_NAMESPACE

#endif // QGEOPOSITIONINFOSOURCEWINRT_H
