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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 #include "config.h"
     21 #include "DeviceOrientationProviderQt.h"
     22 
     23 #include "DeviceOrientationClientMockQt.h"
     24 
     25 namespace WebCore {
     26 
     27 DeviceOrientationProviderQt::DeviceOrientationProviderQt()
     28 {
     29     m_rotation.addFilter(this);
     30     m_orientation = DeviceOrientation::create();
     31 
     32     if (DeviceOrientationClientMockQt::mockIsActive)
     33         activeClientMock();
     34 }
     35 
     36 DeviceOrientationProviderQt::~DeviceOrientationProviderQt()
     37 {
     38     disconnect();
     39 }
     40 
     41 void DeviceOrientationProviderQt::start()
     42 {
     43     m_rotation.start();
     44 }
     45 
     46 void DeviceOrientationProviderQt::stop()
     47 {
     48     m_rotation.stop();
     49 }
     50 
     51 bool DeviceOrientationProviderQt::filter(QRotationReading* reading)
     52 {
     53     // Provide device orientation data according W3C spec:
     54     // http://dev.w3.org/geo/api/spec-source-orientation.html
     55     // Qt mobility provide these data via QRotationSensor using the
     56     // QRotationReading class:
     57     //  - the rotation around z axis (alpha) is given as z in QRotationReading;
     58     //  - the rotation around x axis (beta) is given as x in QRotationReading;
     59     //  - the rotation around y axis (gamma) is given as y in QRotationReading;
     60     // See: http://doc.qt.nokia.com/qtmobility-1.0/qrotationreading.html
     61     // The Z (alpha) rotation angle is checked via hasAlpha() private method,
     62     // depending if the device is able do detect the alpha rotation. X (beta) and
     63     // Y (gamma) axis are availble in this context.
     64     m_orientation = DeviceOrientation::create(hasAlpha(), reading->z(),
     65             /* x available */ true, reading->x(),
     66             /* y available */ true, reading->y());
     67     emit deviceOrientationChanged(m_orientation.get());
     68 
     69     return false;
     70 }
     71 
     72 void DeviceOrientationProviderQt::changeDeviceOrientation(DeviceOrientation* orientation)
     73 {
     74     m_orientation = orientation;
     75 }
     76 
     77 void DeviceOrientationProviderQt::activeClientMock()
     78 {
     79     connect(DeviceOrientationClientMockQt::client(), SIGNAL(mockOrientationChanged(DeviceOrientation*)), SLOT(changeDeviceOrientation(DeviceOrientation*)));
     80 }
     81 
     82 }
     83 
     84 #include "moc_DeviceOrientationProviderQt.cpp"
     85