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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // Provides wifi scan API binding for chromeos, using proprietary APIs. | 5 // Provides wifi scan API binding for chromeos, using proprietary APIs. |
6 | 6 |
7 #include "device/geolocation/wifi_data_provider_chromeos.h" | 7 #include "content/browser/geolocation/wifi_data_provider_chromeos.h" |
8 | 8 |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
11 #include "base/bind.h" | 11 #include "base/bind.h" |
12 #include "base/single_thread_task_runner.h" | |
13 #include "base/strings/utf_string_conversions.h" | 12 #include "base/strings/utf_string_conversions.h" |
14 #include "base/threading/thread_task_runner_handle.h" | |
15 #include "chromeos/network/geolocation_handler.h" | 13 #include "chromeos/network/geolocation_handler.h" |
16 #include "device/geolocation/wifi_data_provider_manager.h" | 14 #include "content/browser/geolocation/wifi_data_provider_manager.h" |
| 15 #include "content/public/browser/browser_thread.h" |
17 | 16 |
18 namespace device { | 17 namespace content { |
19 | 18 |
20 namespace { | 19 namespace { |
21 | 20 |
22 // The time periods between successive polls of the wifi data. | 21 // The time periods between successive polls of the wifi data. |
23 const int kDefaultPollingIntervalMilliseconds = 10 * 1000; // 10s | 22 const int kDefaultPollingIntervalMilliseconds = 10 * 1000; // 10s |
24 const int kNoChangePollingIntervalMilliseconds = 2 * 60 * 1000; // 2 mins | 23 const int kNoChangePollingIntervalMilliseconds = 2 * 60 * 1000; // 2 mins |
25 const int kTwoNoChangePollingIntervalMilliseconds = 10 * 60 * 1000; // 10 mins | 24 const int kTwoNoChangePollingIntervalMilliseconds = 10 * 60 * 1000; // 10 mins |
26 const int kNoWifiPollingIntervalMilliseconds = 20 * 1000; // 20s | 25 const int kNoWifiPollingIntervalMilliseconds = 20 * 1000; // 20s |
27 | 26 |
28 } // namespace | 27 } // namespace |
29 | 28 |
30 WifiDataProviderChromeOs::WifiDataProviderChromeOs() | 29 WifiDataProviderChromeOs::WifiDataProviderChromeOs() |
31 : started_(false), | 30 : started_(false), is_first_scan_complete_(false) { |
32 is_first_scan_complete_(false), | 31 } |
33 main_task_runner_(base::ThreadTaskRunnerHandle::Get()) {} | |
34 | 32 |
35 WifiDataProviderChromeOs::~WifiDataProviderChromeOs() { | 33 WifiDataProviderChromeOs::~WifiDataProviderChromeOs() { |
36 } | 34 } |
37 | 35 |
38 void WifiDataProviderChromeOs::StartDataProvider() { | 36 void WifiDataProviderChromeOs::StartDataProvider() { |
39 DCHECK(CalledOnClientThread()); | 37 DCHECK(CalledOnClientThread()); |
40 | 38 |
41 DCHECK(polling_policy_ == NULL); | 39 DCHECK(polling_policy_ == NULL); |
42 polling_policy_.reset( | 40 polling_policy_.reset( |
43 new GenericWifiPollingPolicy<kDefaultPollingIntervalMilliseconds, | 41 new GenericWifiPollingPolicy<kDefaultPollingIntervalMilliseconds, |
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56 } | 54 } |
57 | 55 |
58 bool WifiDataProviderChromeOs::GetData(WifiData* data) { | 56 bool WifiDataProviderChromeOs::GetData(WifiData* data) { |
59 DCHECK(CalledOnClientThread()); | 57 DCHECK(CalledOnClientThread()); |
60 DCHECK(data); | 58 DCHECK(data); |
61 *data = wifi_data_; | 59 *data = wifi_data_; |
62 return is_first_scan_complete_; | 60 return is_first_scan_complete_; |
63 } | 61 } |
64 | 62 |
65 void WifiDataProviderChromeOs::DoStartTaskOnUIThread() { | 63 void WifiDataProviderChromeOs::DoStartTaskOnUIThread() { |
66 CHECK(main_task_runner_->BelongsToCurrentThread()); | 64 CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
67 DoWifiScanTaskOnUIThread(); | 65 DoWifiScanTaskOnUIThread(); |
68 } | 66 } |
69 | 67 |
70 void WifiDataProviderChromeOs::DoWifiScanTaskOnUIThread() { | 68 void WifiDataProviderChromeOs::DoWifiScanTaskOnUIThread() { |
71 CHECK(main_task_runner_->BelongsToCurrentThread()); | 69 CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
72 | 70 |
73 // This method could be scheduled after a ScheduleStop. | 71 // This method could be scheduled after a ScheduleStop. |
74 if (!started_) | 72 if (!started_) |
75 return; | 73 return; |
76 | 74 |
77 WifiData new_data; | 75 WifiData new_data; |
78 | 76 |
79 if (GetAccessPointData(&new_data.access_point_data)) { | 77 if (GetAccessPointData(&new_data.access_point_data)) { |
80 client_task_runner()->PostTask( | 78 client_task_runner()->PostTask( |
81 FROM_HERE, | 79 FROM_HERE, |
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108 | 106 |
109 if (update_available || !is_first_scan_complete_) { | 107 if (update_available || !is_first_scan_complete_) { |
110 is_first_scan_complete_ = true; | 108 is_first_scan_complete_ = true; |
111 RunCallbacks(); | 109 RunCallbacks(); |
112 } | 110 } |
113 } | 111 } |
114 | 112 |
115 void WifiDataProviderChromeOs::ScheduleNextScan(int interval) { | 113 void WifiDataProviderChromeOs::ScheduleNextScan(int interval) { |
116 DCHECK(CalledOnClientThread()); | 114 DCHECK(CalledOnClientThread()); |
117 DCHECK(started_); | 115 DCHECK(started_); |
118 main_task_runner_->PostDelayedTask( | 116 BrowserThread::PostDelayedTask( |
| 117 BrowserThread::UI, |
119 FROM_HERE, | 118 FROM_HERE, |
120 base::Bind(&WifiDataProviderChromeOs::DoWifiScanTaskOnUIThread, this), | 119 base::Bind(&WifiDataProviderChromeOs::DoWifiScanTaskOnUIThread, this), |
121 base::TimeDelta::FromMilliseconds(interval)); | 120 base::TimeDelta::FromMilliseconds(interval)); |
122 } | 121 } |
123 | 122 |
124 void WifiDataProviderChromeOs::ScheduleStop() { | 123 void WifiDataProviderChromeOs::ScheduleStop() { |
125 DCHECK(CalledOnClientThread()); | 124 DCHECK(CalledOnClientThread()); |
126 DCHECK(started_); | 125 DCHECK(started_); |
127 started_ = false; | 126 started_ = false; |
128 } | 127 } |
129 | 128 |
130 void WifiDataProviderChromeOs::ScheduleStart() { | 129 void WifiDataProviderChromeOs::ScheduleStart() { |
131 DCHECK(CalledOnClientThread()); | 130 DCHECK(CalledOnClientThread()); |
132 DCHECK(!started_); | 131 DCHECK(!started_); |
133 started_ = true; | 132 started_ = true; |
134 // Perform first scan ASAP regardless of the polling policy. If this scan | 133 // Perform first scan ASAP regardless of the polling policy. If this scan |
135 // fails we'll retry at a rate in line with the polling policy. | 134 // fails we'll retry at a rate in line with the polling policy. |
136 main_task_runner_->PostTask( | 135 BrowserThread::PostTask( |
| 136 BrowserThread::UI, |
137 FROM_HERE, | 137 FROM_HERE, |
138 base::Bind(&WifiDataProviderChromeOs::DoStartTaskOnUIThread, this)); | 138 base::Bind(&WifiDataProviderChromeOs::DoStartTaskOnUIThread, this)); |
139 } | 139 } |
140 | 140 |
141 bool WifiDataProviderChromeOs::GetAccessPointData( | 141 bool WifiDataProviderChromeOs::GetAccessPointData( |
142 WifiData::AccessPointDataSet* result) { | 142 WifiData::AccessPointDataSet* result) { |
143 // If wifi isn't enabled, we've effectively completed the task. | 143 // If wifi isn't enabled, we've effectively completed the task. |
144 // Return true to indicate an empty access point list. | 144 // Return true to indicate an empty access point list. |
145 if (!chromeos::NetworkHandler::Get()->geolocation_handler()->wifi_enabled()) | 145 if (!chromeos::NetworkHandler::Get()->geolocation_handler()->wifi_enabled()) |
146 return true; | 146 return true; |
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165 if (age_ms > kTwoNoChangePollingIntervalMilliseconds * 2) | 165 if (age_ms > kTwoNoChangePollingIntervalMilliseconds * 2) |
166 return false; | 166 return false; |
167 return true; | 167 return true; |
168 } | 168 } |
169 | 169 |
170 // static | 170 // static |
171 WifiDataProvider* WifiDataProviderManager::DefaultFactoryFunction() { | 171 WifiDataProvider* WifiDataProviderManager::DefaultFactoryFunction() { |
172 return new WifiDataProviderChromeOs(); | 172 return new WifiDataProviderChromeOs(); |
173 } | 173 } |
174 | 174 |
175 } // namespace device | 175 } // namespace content |
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