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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 #include "content/browser/device_sensors/device_sensor_host.h" | |
6 | |
7 #include "base/memory/ptr_util.h" | |
8 #include "base/message_loop/message_loop.h" | |
9 #include "content/browser/device_sensors/device_sensor_service.h" | |
10 #include "mojo/public/cpp/bindings/strong_binding.h" | |
11 | |
12 namespace content { | |
13 | |
14 template <typename MojoInterface, ConsumerType consumer_type> | |
15 void DeviceSensorHost<MojoInterface, consumer_type>::Create( | |
16 mojo::InterfaceRequest<MojoInterface> request) { | |
17 mojo::MakeStrongBinding( | |
18 base::WrapUnique(new DeviceSensorHost<MojoInterface, consumer_type>), | |
19 std::move(request)); | |
20 } | |
21 | |
22 template <typename MojoInterface, ConsumerType consumer_type> | |
23 DeviceSensorHost<MojoInterface, consumer_type>::DeviceSensorHost() | |
24 : is_started_(false) { | |
25 #if defined(OS_ANDROID) | |
26 DCHECK(base::MessageLoopForUI::IsCurrent()); | |
27 #else | |
28 DCHECK(base::MessageLoopForIO::IsCurrent()); | |
29 #endif | |
30 } | |
31 | |
32 template <typename MojoInterface, ConsumerType consumer_type> | |
33 DeviceSensorHost<MojoInterface, consumer_type>::~DeviceSensorHost() { | |
34 DCHECK(thread_checker_.CalledOnValidThread()); | |
35 if (is_started_) | |
36 DeviceSensorService::GetInstance()->RemoveConsumer(consumer_type); | |
37 } | |
38 | |
39 template <typename MojoInterface, ConsumerType consumer_type> | |
40 void DeviceSensorHost<MojoInterface, consumer_type>::DeviceSensorHost:: | |
41 StartPolling(const typename MojoInterface::StartPollingCallback& callback) { | |
42 DCHECK(thread_checker_.CalledOnValidThread()); | |
43 DCHECK(!is_started_); | |
44 if (is_started_) | |
45 return; | |
46 is_started_ = true; | |
47 DeviceSensorService::GetInstance()->AddConsumer(consumer_type); | |
48 callback.Run( | |
49 DeviceSensorService::GetInstance()->GetSharedMemoryHandle(consumer_type)); | |
50 } | |
51 | |
52 template <typename MojoInterface, ConsumerType consumer_type> | |
53 void DeviceSensorHost<MojoInterface, | |
54 consumer_type>::DeviceSensorHost::StopPolling() { | |
55 DCHECK(thread_checker_.CalledOnValidThread()); | |
56 DCHECK(is_started_); | |
57 if (!is_started_) | |
58 return; | |
59 is_started_ = false; | |
60 DeviceSensorService::GetInstance()->RemoveConsumer(consumer_type); | |
61 } | |
62 | |
63 template class DeviceSensorHost<device::mojom::LightSensor, | |
64 CONSUMER_TYPE_LIGHT>; | |
65 template class DeviceSensorHost<device::mojom::MotionSensor, | |
66 CONSUMER_TYPE_MOTION>; | |
67 template class DeviceSensorHost<device::mojom::OrientationSensor, | |
68 CONSUMER_TYPE_ORIENTATION>; | |
69 template class DeviceSensorHost<device::mojom::OrientationAbsoluteSensor, | |
70 CONSUMER_TYPE_ORIENTATION_ABSOLUTE>; | |
71 | |
72 } // namespace content | |
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