1/*
2 * Copyright 2010 Apple Inc. All rights reserved.
3 * Copyright (C) 2012 Samsung Electronics. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * 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 THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "DeviceMotionController.h"
29
30#include "DeviceMotionClient.h"
31#include "DeviceMotionData.h"
32#include "DeviceMotionEvent.h"
33#include "Page.h"
34
35namespace WebCore {
36
37DeviceMotionController::DeviceMotionController(DeviceMotionClient* client)
38    : DeviceController(client)
39{
40    ASSERT(m_client);
41    deviceMotionClient()->setController(this);
42}
43
44#if PLATFORM(IOS)
45// FIXME: We should look to reconcile the iOS and OpenSource differences with this class
46// so that we can either remove these methods or remove the PLATFORM(IOS)-guard.
47void DeviceMotionController::suspendUpdates()
48{
49    if (m_client)
50        m_client->stopUpdating();
51}
52
53void DeviceMotionController::resumeUpdates()
54{
55    if (m_client && !m_listeners.isEmpty())
56        m_client->startUpdating();
57}
58#endif
59
60void DeviceMotionController::didChangeDeviceMotion(DeviceMotionData* deviceMotionData)
61{
62    dispatchDeviceEvent(DeviceMotionEvent::create(eventNames().devicemotionEvent, deviceMotionData));
63}
64
65DeviceMotionClient* DeviceMotionController::deviceMotionClient()
66{
67    return static_cast<DeviceMotionClient*>(m_client);
68}
69
70bool DeviceMotionController::hasLastData()
71{
72    return deviceMotionClient()->lastMotion();
73}
74
75PassRefPtr<Event> DeviceMotionController::getLastEvent()
76{
77    return DeviceMotionEvent::create(eventNames().devicemotionEvent, deviceMotionClient()->lastMotion());
78}
79
80const char* DeviceMotionController::supplementName()
81{
82    return "DeviceMotionController";
83}
84
85DeviceMotionController* DeviceMotionController::from(Page* page)
86{
87    return static_cast<DeviceMotionController*>(Supplement<Page>::from(page, supplementName()));
88}
89
90bool DeviceMotionController::isActiveAt(Page* page)
91{
92    if (DeviceMotionController* self = DeviceMotionController::from(page))
93        return self->isActive();
94    return false;
95}
96
97void provideDeviceMotionTo(Page* page, DeviceMotionClient* client)
98{
99    DeviceMotionController::provideTo(page, DeviceMotionController::supplementName(), std::make_unique<DeviceMotionController>(client));
100}
101
102} // namespace WebCore
103