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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. 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 APPLE INC. ``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 APPLE INC. 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 "DeviceMotionEvent.h"
28
29#include "DeviceMotionData.h"
30
31namespace WebCore {
32
33DeviceMotionEvent::~DeviceMotionEvent() = default;
34
35DeviceMotionEvent::DeviceMotionEvent()
36 : m_deviceMotionData(DeviceMotionData::create())
37{
38}
39
40DeviceMotionEvent::DeviceMotionEvent(const AtomicString& eventType, DeviceMotionData* deviceMotionData)
41 : Event(eventType, CanBubble::No, IsCancelable::No)
42 , m_deviceMotionData(deviceMotionData)
43{
44}
45
46static Optional<DeviceMotionEvent::Acceleration> convert(const DeviceMotionData::Acceleration* acceleration)
47{
48 if (!acceleration)
49 return WTF::nullopt;
50
51 return DeviceMotionEvent::Acceleration { acceleration->x(), acceleration->y(), acceleration->z() };
52}
53
54static Optional<DeviceMotionEvent::RotationRate> convert(const DeviceMotionData::RotationRate* rotationRate)
55{
56 if (!rotationRate)
57 return WTF::nullopt;
58
59 return DeviceMotionEvent::RotationRate { rotationRate->alpha(), rotationRate->beta(), rotationRate->gamma() };
60}
61
62static RefPtr<DeviceMotionData::Acceleration> convert(Optional<DeviceMotionEvent::Acceleration>&& acceleration)
63{
64 if (!acceleration)
65 return nullptr;
66
67 if (!acceleration->x && !acceleration->y && !acceleration->z)
68 return nullptr;
69
70 return DeviceMotionData::Acceleration::create(acceleration->x, acceleration->y, acceleration->z);
71}
72
73static RefPtr<DeviceMotionData::RotationRate> convert(Optional<DeviceMotionEvent::RotationRate>&& rotationRate)
74{
75 if (!rotationRate)
76 return nullptr;
77
78 if (!rotationRate->alpha && !rotationRate->beta && !rotationRate->gamma)
79 return nullptr;
80
81 return DeviceMotionData::RotationRate::create(rotationRate->alpha, rotationRate->beta, rotationRate->gamma);
82}
83
84Optional<DeviceMotionEvent::Acceleration> DeviceMotionEvent::acceleration() const
85{
86 return convert(m_deviceMotionData->acceleration());
87}
88
89Optional<DeviceMotionEvent::Acceleration> DeviceMotionEvent::accelerationIncludingGravity() const
90{
91 return convert(m_deviceMotionData->accelerationIncludingGravity());
92}
93
94Optional<DeviceMotionEvent::RotationRate> DeviceMotionEvent::rotationRate() const
95{
96 return convert(m_deviceMotionData->rotationRate());
97}
98
99Optional<double> DeviceMotionEvent::interval() const
100{
101 return m_deviceMotionData->interval();
102}
103
104void DeviceMotionEvent::initDeviceMotionEvent(const AtomicString& type, bool bubbles, bool cancelable, Optional<DeviceMotionEvent::Acceleration>&& acceleration, Optional<DeviceMotionEvent::Acceleration>&& accelerationIncludingGravity, Optional<DeviceMotionEvent::RotationRate>&& rotationRate, Optional<double> interval)
105{
106 if (isBeingDispatched())
107 return;
108
109 initEvent(type, bubbles, cancelable);
110 m_deviceMotionData = DeviceMotionData::create(convert(WTFMove(acceleration)), convert(WTFMove(accelerationIncludingGravity)), convert(WTFMove(rotationRate)), interval);
111}
112
113EventInterface DeviceMotionEvent::eventInterface() const
114{
115#if ENABLE(DEVICE_ORIENTATION)
116 return DeviceMotionEventInterfaceType;
117#else
118 // FIXME: ENABLE(DEVICE_ORIENTATION) seems to be in a strange state where
119 // it is half-guarded by #ifdefs. DeviceMotionEvent.idl is guarded
120 // but DeviceMotionEvent.cpp itself is required by ungarded code.
121 return EventInterfaceType;
122#endif
123}
124
125} // namespace WebCore
126