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 WebCore {
  31
  32 DEFINE_GC_INFO(DeviceMotionData::Acceleration);
  33 DEFINE_GC_INFO(DeviceMotionData::RotationRate);
  34 DEFINE_GC_INFO(DeviceMotionData);
  35
  36 PassRefPtrWillBeRawPtr<DeviceMotionData::Acceleration> DeviceMotionData::Acceleration::create(
  37     bool canProvideX, double x, bool canProvideY, double y, bool canProvideZ, double z)
  38 {
  39     return adoptRefWillBeNoop(new DeviceMotionData::Acceleration(canProvideX, x, canProvideY, y, canProvideZ, z));
  40 }
  41
  42 DeviceMotionData::Acceleration::Acceleration(bool canProvideX, double x, bool canProvideY, double y, bool canProvideZ, double z)
  43     : m_x(x)
  44     , m_y(y)
  45     , m_z(z)
  46     , m_canProvideX(canProvideX)
  47     , m_canProvideY(canProvideY)
  48     , m_canProvideZ(canProvideZ)
  49
  50 {
  51 }
  52
  53 PassRefPtrWillBeRawPtr<DeviceMotionData::RotationRate> DeviceMotionData::RotationRate::create(
  54     bool canProvideAlpha, double alpha, bool canProvideBeta, double beta, bool canProvideGamma, double gamma)
  55 {
  56     return adoptRefWillBeNoop(new DeviceMotionData::RotationRate(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma));
  57 }
  58
  59 DeviceMotionData::RotationRate::RotationRate(bool canProvideAlpha, double alpha, bool canProvideBeta, double beta, bool canProvideGamma, double gamma)
  60     : m_alpha(alpha)
  61     , m_beta(beta)
  62     , m_gamma(gamma)
  63     , m_canProvideAlpha(canProvideAlpha)
  64     , m_canProvideBeta(canProvideBeta)
  65     , m_canProvideGamma(canProvideGamma)
  66 {
  67 }
  68
  69 PassRefPtrWillBeRawPtr<DeviceMotionData> DeviceMotionData::create()
  70 {
  71     return adoptRefWillBeNoop(new DeviceMotionData);
  72 }
  73
  74 PassRefPtrWillBeRawPtr<DeviceMotionData> DeviceMotionData::create(
  75     PassRefPtrWillBeRawPtr<Acceleration> acceleration,
  76     PassRefPtrWillBeRawPtr<Acceleration> accelerationIncludingGravity,
  77     PassRefPtrWillBeRawPtr<RotationRate> rotationRate,
  78     bool canProvideInterval,
  79     double interval)
  80 {
  81     return adoptRefWillBeNoop(new DeviceMotionData(acceleration, accelerationIncludingGravity, rotationRate, canProvideInterval, interval));
  82 }
  83
  84 PassRefPtrWillBeRawPtr<DeviceMotionData> DeviceMotionData::create(const blink::WebDeviceMotionData& data)
  85 {
  86     return DeviceMotionData::create(
  87         DeviceMotionData::Acceleration::create(
  88             data.hasAccelerationX, data.accelerationX,
  89             data.hasAccelerationY, data.accelerationY,
  90             data.hasAccelerationZ, data.accelerationZ),
  91         DeviceMotionData::Acceleration::create(
  92             data.hasAccelerationIncludingGravityX, data.accelerationIncludingGravityX,
  93             data.hasAccelerationIncludingGravityY, data.accelerationIncludingGravityY,
  94             data.hasAccelerationIncludingGravityZ, data.accelerationIncludingGravityZ),
  95         DeviceMotionData::RotationRate::create(
  96             data.hasRotationRateAlpha, data.rotationRateAlpha,
  97             data.hasRotationRateBeta, data.rotationRateBeta,
  98             data.hasRotationRateGamma, data.rotationRateGamma),
  99         true, data.interval);
 100 }
 101
 102 DeviceMotionData::DeviceMotionData()
 103     : m_canProvideInterval(false)
 104     , m_interval(0)
 105 {
 106 }
 107
 108 DeviceMotionData::DeviceMotionData(
 109     PassRefPtrWillBeRawPtr<Acceleration> acceleration,
 110     PassRefPtrWillBeRawPtr<Acceleration> accelerationIncludingGravity,
 111     PassRefPtrWillBeRawPtr<RotationRate> rotationRate,
 112     bool canProvideInterval,
 113     double interval)
 114     : m_acceleration(acceleration)
 115     , m_accelerationIncludingGravity(accelerationIncludingGravity)
 116     , m_rotationRate(rotationRate)
 117     , m_canProvideInterval(canProvideInterval)
 118     , m_interval(interval)
 119 {
 120 }
 121
 122 void DeviceMotionData::trace(Visitor* visitor)
 123 {
 124     visitor->trace(m_acceleration);
 125     visitor->trace(m_accelerationIncludingGravity);
 126     visitor->trace(m_rotationRate);
 127 }
 128
 129 bool DeviceMotionData::canProvideEventData() const
 130 {
 131     const bool hasAcceleration = m_acceleration && (m_acceleration->canProvideX() || m_acceleration->canProvideY() || m_acceleration->canProvideZ());
 132     const bool hasAccelerationIncludingGravity = m_accelerationIncludingGravity && (m_accelerationIncludingGravity->canProvideX() || m_accelerationIncludingGravity->canProvideY() || m_accelerationIncludingGravity->canProvideZ());
 133     const bool hasRotationRate = m_rotationRate && (m_rotationRate->canProvideAlpha() || m_rotationRate->canProvideBeta() || m_rotationRate->canProvideGamma());
 134
 135     return hasAcceleration || hasAccelerationIncludingGravity || hasRotationRate;
 136 }
 137
 138 } // namespace WebCore