1/* 2 * Copyright (C) 2013 Google 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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "modules/device_orientation/DeviceAcceleration.h" 28 29namespace blink { 30 31DeviceAcceleration::DeviceAcceleration(DeviceMotionData::Acceleration* acceleration) 32 : m_acceleration(acceleration) 33{ 34} 35 36void DeviceAcceleration::trace(Visitor* visitor) 37{ 38 visitor->trace(m_acceleration); 39} 40 41double DeviceAcceleration::x(bool& isNull) const 42{ 43 if (m_acceleration->canProvideX()) 44 return m_acceleration->x(); 45 46 isNull = true; 47 return 0; 48} 49 50double DeviceAcceleration::y(bool& isNull) const 51{ 52 if (m_acceleration->canProvideY()) 53 return m_acceleration->y(); 54 55 isNull = true; 56 return 0; 57} 58 59double DeviceAcceleration::z(bool& isNull) const 60{ 61 if (m_acceleration->canProvideZ()) 62 return m_acceleration->z(); 63 64 isNull = true; 65 return 0; 66} 67 68} // namespace blink 69