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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef DeviceMotionData_h
     27 #define DeviceMotionData_h
     28 
     29 #include <wtf/PassRefPtr.h>
     30 #include <wtf/RefCounted.h>
     31 #include <wtf/RefPtr.h>
     32 
     33 namespace WebKit {
     34 class WebDeviceMotionData;
     35 }
     36 
     37 namespace WebCore {
     38 
     39 class DeviceMotionData : public RefCounted<DeviceMotionData> {
     40 public:
     41     class Acceleration : public RefCounted<DeviceMotionData::Acceleration> {
     42     public:
     43         static PassRefPtr<Acceleration> create(bool canProvideX, double x, bool canProvideY, double y, bool canProvideZ, double z);
     44 
     45         bool canProvideX() const { return m_canProvideX; }
     46         bool canProvideY() const { return m_canProvideY; }
     47         bool canProvideZ() const { return m_canProvideZ; }
     48 
     49         double x() const { return m_x; }
     50         double y() const { return m_y; }
     51         double z() const { return m_z; }
     52 
     53     private:
     54         Acceleration(bool canProvideX, double x, bool canProvideY, double y, bool canProvideZ, double z);
     55 
     56         double m_x;
     57         double m_y;
     58         double m_z;
     59 
     60         bool m_canProvideX;
     61         bool m_canProvideY;
     62         bool m_canProvideZ;
     63     };
     64 
     65     class RotationRate : public RefCounted<DeviceMotionData::RotationRate> {
     66     public:
     67         static PassRefPtr<RotationRate> create(bool canProvideAlpha, double alpha, bool canProvideBeta,  double beta, bool canProvideGamma, double gamma);
     68 
     69         bool canProvideAlpha() const { return m_canProvideAlpha; }
     70         bool canProvideBeta() const { return m_canProvideBeta; }
     71         bool canProvideGamma() const { return m_canProvideGamma; }
     72 
     73         double alpha() const { return m_alpha; }
     74         double beta() const { return m_beta; }
     75         double gamma() const { return m_gamma; }
     76 
     77     private:
     78         RotationRate(bool canProvideAlpha, double alpha, bool canProvideBeta,  double beta, bool canProvideGamma, double gamma);
     79 
     80         double m_alpha;
     81         double m_beta;
     82         double m_gamma;
     83 
     84         bool m_canProvideAlpha;
     85         bool m_canProvideBeta;
     86         bool m_canProvideGamma;
     87     };
     88 
     89     static PassRefPtr<DeviceMotionData> create();
     90     static PassRefPtr<DeviceMotionData> create(PassRefPtr<Acceleration> acceleration, PassRefPtr<Acceleration> accelerationIncludingGravity,
     91                                                PassRefPtr<RotationRate> rotationRate, bool canProvideInterval, double interval);
     92     static PassRefPtr<DeviceMotionData> create(const WebKit::WebDeviceMotionData&);
     93 
     94     PassRefPtr<Acceleration> acceleration() const { return m_acceleration; }
     95     PassRefPtr<Acceleration> accelerationIncludingGravity() const { return m_accelerationIncludingGravity; }
     96     PassRefPtr<RotationRate> rotationRate() const { return m_rotationRate; }
     97 
     98     bool canProvideInterval() const { return m_canProvideInterval; }
     99     double interval() const { return m_interval; }
    100 
    101     bool canProvideEventData() const;
    102 
    103 private:
    104     DeviceMotionData();
    105     DeviceMotionData(PassRefPtr<Acceleration> acceleration, PassRefPtr<Acceleration> accelerationIncludingGravity,
    106                      PassRefPtr<RotationRate> rotationRate, bool canProvideInterval, double interval);
    107 
    108     RefPtr<Acceleration> m_acceleration;
    109     RefPtr<Acceleration> m_accelerationIncludingGravity;
    110     RefPtr<RotationRate> m_rotationRate;
    111     bool m_canProvideInterval;
    112     double m_interval;
    113 };
    114 
    115 } // namespace WebCore
    116 
    117 #endif // DeviceMotionData_h
    118