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

Issue 2317743002: [Sensors] Implementation of the Generic Sensor API (Closed)
Patch Set: Comments from Tim and haraken Created 4 years, 3 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
7 namespace blink { 12 namespace blink {
8 13
9 SensorReading::SensorReading() 14 SensorReading::SensorReading(SensorProxy* sensorProxy)
15 : m_sensorProxy(sensorProxy)
10 { 16 {
11 } 17 DCHECK(m_sensorProxy);
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 {
30 } 18 }
31 19
32 DEFINE_TRACE(SensorReading) 20 DEFINE_TRACE(SensorReading)
33 { 21 {
22 visitor->trace(m_sensorProxy);
23 }
24
25 DOMHighResTimeStamp SensorReading::timeStamp(ScriptState* scriptState) const
26 {
27 LocalDOMWindow* window = scriptState->domWindow();
28 if (!window)
29 return 0.0;
30
31 Performance* performance = DOMWindowPerformance::performance(*window);
32 DCHECK(performance);
33
34 return performance->monotonicTimeToDOMHighResTimeStamp(m_sensorProxy->readin g().timestamp);
34 } 35 }
35 36
36 } // namespace blink 37 } // namespace blink
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