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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef SensorPollingStrategy_h | |
6 #define SensorPollingStrategy_h | |
7 | |
8 #include "device/generic_sensor/public/interfaces/sensor_provider.mojom-blink.h" | |
9 #include "platform/heap/Handle.h" | |
10 #include "wtf/Functional.h" | |
11 | |
12 namespace blink { | |
13 | |
14 // This class provides different polling behaviour depending on | |
15 // the given 'ReportingMode': | |
16 // - for 'CONTINUOUS' mode the polling function is invoked periodically | |
17 // with the given frequency (on timer event). | |
18 // - for 'ONCHANGE' mode the polling function is invoked only after client | |
19 // calls 'onSensorReadingChanged()' however considering the given frequency: | |
20 // guarantied not to be called more often than expected. | |
timvolodine
2016/09/05 23:22:40
->guaranteed
| |
21 class SensorPollingStrategy : public GarbageCollectedFinalized<SensorPollingStra tegy> { | |
haraken
2016/09/06 05:04:28
There's no benefit in putting this class on Garbag
Mikhail
2016/09/06 07:13:58
right, I'll change that
| |
22 public: | |
23 static SensorPollingStrategy* create(double frequency, std::unique_ptr<Funct ion<void()>> pollFunc, device::mojom::blink::ReportingMode); | |
24 | |
25 virtual void onSensorReadingChanged() {} | |
26 virtual void startPolling() = 0; | |
27 virtual void stopPolling() = 0; | |
28 | |
29 virtual ~SensorPollingStrategy() {} | |
30 | |
31 DEFINE_INLINE_VIRTUAL_TRACE() {} | |
32 | |
33 protected: | |
34 SensorPollingStrategy(double frequency, std::unique_ptr<Function<void()>>); | |
35 double m_frequency; | |
36 std::unique_ptr<Function<void()>> m_pollFunc; | |
37 }; | |
38 | |
39 } // namespace blink | |
40 | |
41 #endif // SensorPollingStrategy_h | |
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