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1 /* | 1 /* |
2 * Copyright 2010 Apple Inc. All rights reserved. | 2 * Copyright 2010 Apple Inc. All rights reserved. |
3 * Copyright (C) 2012 Samsung Electronics. All rights reserved. | 3 * Copyright (C) 2012 Samsung Electronics. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above copyright | 10 * * Redistributions in binary form must reproduce the above copyright |
11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
13 * | 13 * |
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY | 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY |
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 */ | 25 */ |
26 | 26 |
27 #include "config.h" | 27 #include "config.h" |
28 #include "modules/device_orientation/DeviceMotionController.h" | 28 #include "modules/device_orientation/DeviceMotionController.h" |
29 | 29 |
30 #include "modules/device_orientation/DeviceMotionClient.h" | 30 #include "core/dom/Document.h" |
| 31 #include "core/page/DOMWindow.h" |
31 #include "modules/device_orientation/DeviceMotionData.h" | 32 #include "modules/device_orientation/DeviceMotionData.h" |
| 33 #include "modules/device_orientation/DeviceMotionDispatcher.h" |
32 #include "modules/device_orientation/DeviceMotionEvent.h" | 34 #include "modules/device_orientation/DeviceMotionEvent.h" |
33 #include "core/page/Page.h" | |
34 | 35 |
35 namespace WebCore { | 36 namespace WebCore { |
36 | 37 |
37 DeviceMotionController::DeviceMotionController(DeviceMotionClient* client) | 38 DeviceMotionController::DeviceMotionController(Document* document) |
38 : DeviceController(client) | 39 : m_document(document) |
| 40 , m_isActive(false) |
| 41 , m_timer(this, &DeviceMotionController::fireDeviceEvent) |
39 { | 42 { |
40 ASSERT(m_client); | |
41 deviceMotionClient()->setController(this); | |
42 } | 43 } |
43 | 44 |
44 PassOwnPtr<DeviceMotionController> DeviceMotionController::create(DeviceMotionCl
ient* client) | 45 DeviceMotionController::~DeviceMotionController() |
45 { | 46 { |
46 return adoptPtr(new DeviceMotionController(client)); | 47 stopUpdating(); |
47 } | 48 } |
48 | 49 |
49 void DeviceMotionController::didChangeDeviceMotion(DeviceMotionData* deviceMotio
nData) | 50 void DeviceMotionController::didChangeDeviceMotion(DeviceMotionData* deviceMotio
nData) |
50 { | 51 { |
51 dispatchDeviceEvent(DeviceMotionEvent::create(eventNames().devicemotionEvent
, deviceMotionData)); | 52 dispatchDeviceEvent(DeviceMotionEvent::create(eventNames().devicemotionEvent
, deviceMotionData)); |
52 } | 53 } |
53 | 54 |
54 DeviceMotionClient* DeviceMotionController::deviceMotionClient() | |
55 { | |
56 return static_cast<DeviceMotionClient*>(m_client); | |
57 } | |
58 | |
59 bool DeviceMotionController::hasLastData() | 55 bool DeviceMotionController::hasLastData() |
60 { | 56 { |
61 return deviceMotionClient()->lastMotion(); | 57 return DeviceMotionDispatcher::instance().latestDeviceMotionData(); |
62 } | 58 } |
63 | 59 |
64 PassRefPtr<Event> DeviceMotionController::getLastEvent() | 60 PassRefPtr<Event> DeviceMotionController::getLastEvent() |
65 { | 61 { |
66 return DeviceMotionEvent::create(eventNames().devicemotionEvent, deviceMotio
nClient()->lastMotion()); | 62 return DeviceMotionEvent::create(eventNames().devicemotionEvent, |
| 63 DeviceMotionDispatcher::instance().latestDeviceMotionData()); |
| 64 } |
| 65 |
| 66 void DeviceMotionController::fireDeviceEvent(Timer<DeviceMotionController>* time
r) |
| 67 { |
| 68 ASSERT_UNUSED(timer, timer == &m_timer); |
| 69 ASSERT(hasLastData()); |
| 70 |
| 71 m_timer.stop(); |
| 72 dispatchDeviceEvent(getLastEvent()); |
| 73 } |
| 74 |
| 75 void DeviceMotionController::dispatchDeviceEvent(PassRefPtr<Event> prpEvent) |
| 76 { |
| 77 RefPtr<Event> event = prpEvent; |
| 78 if (m_document && m_document->domWindow() |
| 79 && !m_document->activeDOMObjectsAreSuspended() |
| 80 && !m_document->activeDOMObjectsAreStopped()) |
| 81 m_document->domWindow()->dispatchEvent(event); |
67 } | 82 } |
68 | 83 |
69 const char* DeviceMotionController::supplementName() | 84 const char* DeviceMotionController::supplementName() |
70 { | 85 { |
71 return "DeviceMotionController"; | 86 return "DeviceMotionController"; |
72 } | 87 } |
73 | 88 |
74 DeviceMotionController* DeviceMotionController::from(Page* page) | 89 DeviceMotionController* DeviceMotionController::from(Document* document) |
75 { | 90 { |
76 return static_cast<DeviceMotionController*>(Supplement<Page>::from(page, sup
plementName())); | 91 DeviceMotionController* controller = static_cast<DeviceMotionController*>(Su
pplement<ScriptExecutionContext>::from(document, supplementName())); |
| 92 if (!controller) { |
| 93 controller = new DeviceMotionController(document); |
| 94 Supplement<ScriptExecutionContext>::provideTo(document, supplementName()
, adoptPtr(controller)); |
| 95 } |
| 96 return controller; |
77 } | 97 } |
78 | 98 |
79 bool DeviceMotionController::isActiveAt(Page* page) | 99 void DeviceMotionController::startUpdating() |
80 { | 100 { |
81 if (DeviceMotionController* self = DeviceMotionController::from(page)) | 101 if (m_isActive) |
82 return self->isActive(); | 102 return; |
83 return false; | 103 |
| 104 DeviceMotionDispatcher::instance().addController(this); |
| 105 m_isActive = true; |
| 106 |
| 107 if (hasLastData() && !m_timer.isActive()) |
| 108 // Make sure to fire the device motion data as soon as possible. |
| 109 m_timer.startOneShot(0); |
84 } | 110 } |
85 | 111 |
86 void provideDeviceMotionTo(Page* page, DeviceMotionClient* client) | 112 void DeviceMotionController::stopUpdating() |
87 { | 113 { |
88 DeviceMotionController::provideTo(page, DeviceMotionController::supplementNa
me(), DeviceMotionController::create(client)); | 114 if (!m_isActive) |
| 115 return; |
| 116 |
| 117 DeviceMotionDispatcher::instance().removeController(this); |
| 118 m_isActive = false; |
89 } | 119 } |
90 | 120 |
91 } // namespace WebCore | 121 } // namespace WebCore |
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