third_party/WebKit/Source/modules/device_orientation/DeviceMotionData.h

/*
 * Copyright (C) 2010 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef DeviceMotionData_h
#define DeviceMotionData_h

#include "platform/heap/Handle.h"

namespace blink {

class DeviceAccelerationInit;
class DeviceMotionEventInit;
class DeviceRotationRateInit;
class WebDeviceMotionData;

class DeviceMotionData final : public GarbageCollected<DeviceMotionData> {
 public:
  class Acceleration final
      : public GarbageCollected<DeviceMotionData::Acceleration> {
   public:
    static Acceleration* create(bool canProvideX,
                                double x,
                                bool canProvideY,
                                double y,
                                bool canProvideZ,
                                double z);
    static Acceleration* create(const DeviceAccelerationInit&);
    DEFINE_INLINE_TRACE() {}

    bool canProvideX() const { return m_canProvideX; }
    bool canProvideY() const { return m_canProvideY; }
    bool canProvideZ() const { return m_canProvideZ; }

    double x() const { return m_x; }
    double y() const { return m_y; }
    double z() const { return m_z; }

   private:
    Acceleration(bool canProvideX,
                 double x,
                 bool canProvideY,
                 double y,
                 bool canProvideZ,
                 double z);

    double m_x;
    double m_y;
    double m_z;

    bool m_canProvideX;
    bool m_canProvideY;
    bool m_canProvideZ;
  };

  class RotationRate final
      : public GarbageCollected<DeviceMotionData::RotationRate> {
   public:
    static RotationRate* create(bool canProvideAlpha,
                                double alpha,
                                bool canProvideBeta,
                                double beta,
                                bool canProvideGamma,
                                double gamma);
    static RotationRate* create(const DeviceRotationRateInit&);
    DEFINE_INLINE_TRACE() {}

    bool canProvideAlpha() const { return m_canProvideAlpha; }
    bool canProvideBeta() const { return m_canProvideBeta; }
    bool canProvideGamma() const { return m_canProvideGamma; }

    double alpha() const { return m_alpha; }
    double beta() const { return m_beta; }
    double gamma() const { return m_gamma; }

   private:
    RotationRate(bool canProvideAlpha,
                 double alpha,
                 bool canProvideBeta,
                 double beta,
                 bool canProvideGamma,
                 double gamma);

    double m_alpha;
    double m_beta;
    double m_gamma;

    bool m_canProvideAlpha;
    bool m_canProvideBeta;
    bool m_canProvideGamma;
  };

  static DeviceMotionData* create();
  static DeviceMotionData* create(Acceleration*,
                                  Acceleration* accelerationIncludingGravity,
                                  RotationRate*,
                                  bool canProvideInterval,
                                  double interval);
  static DeviceMotionData* create(const DeviceMotionEventInit&);
  static DeviceMotionData* create(const WebDeviceMotionData&);
  DECLARE_TRACE();

  Acceleration* getAcceleration() const { return m_acceleration.get(); }
  Acceleration* getAccelerationIncludingGravity() const {
    return m_accelerationIncludingGravity.get();
  }
  RotationRate* getRotationRate() const { return m_rotationRate.get(); }

  bool canProvideInterval() const { return m_canProvideInterval; }
  double interval() const { return m_interval; }

  bool canProvideEventData() const;

 private:
  DeviceMotionData();
  DeviceMotionData(Acceleration*,
                   Acceleration* accelerationIncludingGravity,
                   RotationRate*,
                   bool canProvideInterval,
                   double interval);

  Member<Acceleration> m_acceleration;
  Member<Acceleration> m_accelerationIncludingGravity;
  Member<RotationRate> m_rotationRate;
  bool m_canProvideInterval;
  double m_interval;
};

}  // namespace blink

#endif  // DeviceMotionData_h