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      1 /*
      2  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  *
     19  */
     20 #ifndef DeviceOrientationProviderQt_h
     21 #define DeviceOrientationProviderQt_h
     22 
     23 #include "DeviceOrientation.h"
     24 #include "RefPtr.h"
     25 
     26 #include <QObject>
     27 #include <QRotationFilter>
     28 
     29 QTM_USE_NAMESPACE
     30 
     31 namespace WebCore {
     32 
     33 class DeviceOrientationClientQt;
     34 
     35 class DeviceOrientationProviderQt : public QObject, public QRotationFilter {
     36     Q_OBJECT
     37 public:
     38     DeviceOrientationProviderQt();
     39     ~DeviceOrientationProviderQt();
     40 
     41     bool filter(QRotationReading*);
     42     void start();
     43     void stop();
     44     bool isActive() const { return m_rotation.isActive(); }
     45     DeviceOrientation* orientation() const { return m_orientation.get(); }
     46     bool hasAlpha() const { return m_rotation.property("hasZ").toBool(); }
     47 
     48 Q_SIGNALS:
     49     void deviceOrientationChanged(DeviceOrientation*);
     50 
     51 public Q_SLOTS:
     52     void changeDeviceOrientation(DeviceOrientation*);
     53 
     54 private:
     55     void activeClientMock();
     56 
     57     RefPtr<DeviceOrientation> m_orientation;
     58     QRotationSensor m_rotation;
     59 };
     60 
     61 }
     62 
     63 #endif // DeviceOrientationProviderQt_h
     64