src/third_party/WebKit/Source/modules/device_orientation/DeviceMotionData.cpp

   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 #include "config.h"
  27 #include "modules/device_orientation/DeviceMotionData.h"
  28 #include "public/platform/WebDeviceMotionData.h"
  29
  30 namespace blink {
  31
  32 PassRefPtrWillBeRawPtr<DeviceMotionData::Acceleration> DeviceMotionData::Acceleration::create(
  33     bool canProvideX, double x, bool canProvideY, double y, bool canProvideZ, double z)
  34 {
  35     return adoptRefWillBeNoop(new DeviceMotionData::Acceleration(canProvideX, x, canProvideY, y, canProvideZ, z));
  36 }
  37
  38 DeviceMotionData::Acceleration::Acceleration(bool canProvideX, double x, bool canProvideY, double y, bool canProvideZ, double z)
  39     : m_x(x)
  40     , m_y(y)
  41     , m_z(z)
  42     , m_canProvideX(canProvideX)
  43     , m_canProvideY(canProvideY)
  44     , m_canProvideZ(canProvideZ)
  45
  46 {
  47 }
  48
  49 PassRefPtrWillBeRawPtr<DeviceMotionData::RotationRate> DeviceMotionData::RotationRate::create(
  50     bool canProvideAlpha, double alpha, bool canProvideBeta, double beta, bool canProvideGamma, double gamma)
  51 {
  52     return adoptRefWillBeNoop(new DeviceMotionData::RotationRate(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma));
  53 }
  54
  55 DeviceMotionData::RotationRate::RotationRate(bool canProvideAlpha, double alpha, bool canProvideBeta, double beta, bool canProvideGamma, double gamma)
  56     : m_alpha(alpha)
  57     , m_beta(beta)
  58     , m_gamma(gamma)
  59     , m_canProvideAlpha(canProvideAlpha)
  60     , m_canProvideBeta(canProvideBeta)
  61     , m_canProvideGamma(canProvideGamma)
  62 {
  63 }
  64
  65 PassRefPtrWillBeRawPtr<DeviceMotionData> DeviceMotionData::create()
  66 {
  67     return adoptRefWillBeNoop(new DeviceMotionData);
  68 }
  69
  70 PassRefPtrWillBeRawPtr<DeviceMotionData> DeviceMotionData::create(
  71     PassRefPtrWillBeRawPtr<Acceleration> acceleration,
  72     PassRefPtrWillBeRawPtr<Acceleration> accelerationIncludingGravity,
  73     PassRefPtrWillBeRawPtr<RotationRate> rotationRate,
  74     bool canProvideInterval,
  75     double interval)
  76 {
  77     return adoptRefWillBeNoop(new DeviceMotionData(acceleration, accelerationIncludingGravity, rotationRate, canProvideInterval, interval));
  78 }
  79
  80 PassRefPtrWillBeRawPtr<DeviceMotionData> DeviceMotionData::create(const WebDeviceMotionData& data)
  81 {
  82     return DeviceMotionData::create(
  83         DeviceMotionData::Acceleration::create(
  84             data.hasAccelerationX, data.accelerationX,
  85             data.hasAccelerationY, data.accelerationY,
  86             data.hasAccelerationZ, data.accelerationZ),
  87         DeviceMotionData::Acceleration::create(
  88             data.hasAccelerationIncludingGravityX, data.accelerationIncludingGravityX,
  89             data.hasAccelerationIncludingGravityY, data.accelerationIncludingGravityY,
  90             data.hasAccelerationIncludingGravityZ, data.accelerationIncludingGravityZ),
  91         DeviceMotionData::RotationRate::create(
  92             data.hasRotationRateAlpha, data.rotationRateAlpha,
  93             data.hasRotationRateBeta, data.rotationRateBeta,
  94             data.hasRotationRateGamma, data.rotationRateGamma),
  95         true, data.interval);
  96 }
  97
  98 DeviceMotionData::DeviceMotionData()
  99     : m_canProvideInterval(false)
 100     , m_interval(0)
 101 {
 102 }
 103
 104 DeviceMotionData::DeviceMotionData(
 105     PassRefPtrWillBeRawPtr<Acceleration> acceleration,
 106     PassRefPtrWillBeRawPtr<Acceleration> accelerationIncludingGravity,
 107     PassRefPtrWillBeRawPtr<RotationRate> rotationRate,
 108     bool canProvideInterval,
 109     double interval)
 110     : m_acceleration(acceleration)
 111     , m_accelerationIncludingGravity(accelerationIncludingGravity)
 112     , m_rotationRate(rotationRate)
 113     , m_canProvideInterval(canProvideInterval)
 114     , m_interval(interval)
 115 {
 116 }
 117
 118 void DeviceMotionData::trace(Visitor* visitor)
 119 {
 120     visitor->trace(m_acceleration);
 121     visitor->trace(m_accelerationIncludingGravity);
 122     visitor->trace(m_rotationRate);
 123 }
 124
 125 bool DeviceMotionData::canProvideEventData() const
 126 {
 127     const bool hasAcceleration = m_acceleration && (m_acceleration->canProvideX() || m_acceleration->canProvideY() || m_acceleration->canProvideZ());
 128     const bool hasAccelerationIncludingGravity = m_accelerationIncludingGravity && (m_accelerationIncludingGravity->canProvideX() || m_accelerationIncludingGravity->canProvideY() || m_accelerationIncludingGravity->canProvideZ());
 129     const bool hasRotationRate = m_rotationRate && (m_rotationRate->canProvideAlpha() || m_rotationRate->canProvideBeta() || m_rotationRate->canProvideGamma());
 130
 131     return hasAcceleration || hasAccelerationIncludingGravity || hasRotationRate;
 132 }
 133
 134 } // namespace blink