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Side by Side Diff: third_party/WebKit/Source/modules/sensor/SensorReading.cpp

Issue 2121313002: [sensors] Generic Sensors Framework blink side (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@sensors_mojo_interfaces
Patch Set: Rebased Created 4 years, 4 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "modules/sensor/SensorReading.h" 5 #include "modules/sensor/SensorReading.h"
6 6
7 #include "core/dom/ExecutionContext.h"
8 #include "core/frame/LocalDOMWindow.h"
9 #include "core/timing/DOMWindowPerformance.h"
10 #include "core/timing/Performance.h"
11 #include "modules/sensor/SensorProxy.h"
12
7 namespace blink { 13 namespace blink {
8 14
9 SensorReading::SensorReading() 15 SensorReading::SensorReading(ExecutionContext* context)
10 { 16 : m_context(context)
11 }
12
13 SensorReading::SensorReading(bool providesTimeStamp, DOMHighResTimeStamp timeSta mp)
14 : m_canProvideTimeStamp(providesTimeStamp)
15 , m_timeStamp(timeStamp)
16 {
17 }
18
19 DOMHighResTimeStamp SensorReading::timeStamp(bool& isNull)
20 {
21 if (m_canProvideTimeStamp)
22 return m_timeStamp;
23
24 isNull = true;
25 return 0;
26 }
27
28 SensorReading::~SensorReading()
29 { 17 {
30 } 18 }
31 19
32 DEFINE_TRACE(SensorReading) 20 DEFINE_TRACE(SensorReading)
33 { 21 {
22 visitor->trace(m_sensorProxy);
23 visitor->trace(m_context);
24 }
25
26 void SensorReading::attach(SensorProxy* sensorProxy)
27 {
28 DCHECK(sensorProxy);
29 m_sensorProxy = sensorProxy;
30 }
31
32 void SensorReading::detach()
33 {
34 m_sensorProxy = nullptr;
35 }
36
37 DOMHighResTimeStamp SensorReading::timeStamp() const
38 {
39 if (!m_context)
40 return 0.0;
41
42 LocalDOMWindow* window = m_context->executingWindow();
43 if (!window)
44 return 0.0;
45
46 Performance* performance = DOMWindowPerformance::performance(*window);
47 if (!performance)
48 return 0.0;
49
50 return performance->monotonicTimeToDOMHighResTimeStamp(platformTimeStamp());
34 } 51 }
35 52
36 } // namespace blink 53 } // namespace blink
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