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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 #include "device/geolocation/geolocation_provider_impl.h" | 5 #include "device/geolocation/geolocation_provider_impl.h" |
6 | 6 |
| 7 #include <utility> |
| 8 |
7 #include "base/bind.h" | 9 #include "base/bind.h" |
8 #include "base/bind_helpers.h" | 10 #include "base/bind_helpers.h" |
9 #include "base/callback.h" | 11 #include "base/callback.h" |
10 #include "base/lazy_instance.h" | 12 #include "base/lazy_instance.h" |
11 #include "base/location.h" | 13 #include "base/location.h" |
12 #include "base/logging.h" | 14 #include "base/logging.h" |
13 #include "base/memory/ptr_util.h" | 15 #include "base/memory/ptr_util.h" |
14 #include "base/memory/singleton.h" | 16 #include "base/memory/singleton.h" |
15 #include "base/single_thread_task_runner.h" | 17 #include "base/single_thread_task_runner.h" |
16 #include "base/threading/thread_task_runner_handle.h" | 18 #include "base/threading/thread_task_runner_handle.h" |
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65 InformProvidersPermissionGranted(); | 67 InformProvidersPermissionGranted(); |
66 } | 68 } |
67 | 69 |
68 void GeolocationProviderImpl::OverrideLocationForTesting( | 70 void GeolocationProviderImpl::OverrideLocationForTesting( |
69 const Geoposition& position) { | 71 const Geoposition& position) { |
70 DCHECK(main_task_runner_->BelongsToCurrentThread()); | 72 DCHECK(main_task_runner_->BelongsToCurrentThread()); |
71 ignore_location_updates_ = true; | 73 ignore_location_updates_ = true; |
72 NotifyClients(position); | 74 NotifyClients(position); |
73 } | 75 } |
74 | 76 |
75 void GeolocationProviderImpl::OnLocationUpdate(const Geoposition& position) { | 77 void GeolocationProviderImpl::OnLocationUpdate(const LocationProvider* provider, |
| 78 const Geoposition& position) { |
76 DCHECK(OnGeolocationThread()); | 79 DCHECK(OnGeolocationThread()); |
77 // Will be true only in testing. | 80 // Will be true only in testing. |
78 if (ignore_location_updates_) | 81 if (ignore_location_updates_) |
79 return; | 82 return; |
80 main_task_runner_->PostTask( | 83 main_task_runner_->PostTask( |
81 FROM_HERE, base::Bind(&GeolocationProviderImpl::NotifyClients, | 84 FROM_HERE, base::Bind(&GeolocationProviderImpl::NotifyClients, |
82 base::Unretained(this), position)); | 85 base::Unretained(this), position)); |
83 } | 86 } |
84 | 87 |
85 // static | 88 // static |
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97 &GeolocationProviderImpl::OnClientsChanged, base::Unretained(this))); | 100 &GeolocationProviderImpl::OnClientsChanged, base::Unretained(this))); |
98 low_accuracy_callbacks_.set_removal_callback(base::Bind( | 101 low_accuracy_callbacks_.set_removal_callback(base::Bind( |
99 &GeolocationProviderImpl::OnClientsChanged, base::Unretained(this))); | 102 &GeolocationProviderImpl::OnClientsChanged, base::Unretained(this))); |
100 } | 103 } |
101 | 104 |
102 GeolocationProviderImpl::~GeolocationProviderImpl() { | 105 GeolocationProviderImpl::~GeolocationProviderImpl() { |
103 Stop(); | 106 Stop(); |
104 DCHECK(!arbitrator_); | 107 DCHECK(!arbitrator_); |
105 } | 108 } |
106 | 109 |
| 110 void GeolocationProviderImpl::SetArbitratorForTesting( |
| 111 std::unique_ptr<LocationProvider> arbitrator) { |
| 112 arbitrator_ = std::move(arbitrator); |
| 113 } |
| 114 |
107 bool GeolocationProviderImpl::OnGeolocationThread() const { | 115 bool GeolocationProviderImpl::OnGeolocationThread() const { |
108 return task_runner()->BelongsToCurrentThread(); | 116 return task_runner()->BelongsToCurrentThread(); |
109 } | 117 } |
110 | 118 |
111 void GeolocationProviderImpl::OnClientsChanged() { | 119 void GeolocationProviderImpl::OnClientsChanged() { |
112 DCHECK(main_task_runner_->BelongsToCurrentThread()); | 120 DCHECK(main_task_runner_->BelongsToCurrentThread()); |
113 base::Closure task; | 121 base::Closure task; |
114 if (high_accuracy_callbacks_.empty() && low_accuracy_callbacks_.empty()) { | 122 if (high_accuracy_callbacks_.empty() && low_accuracy_callbacks_.empty()) { |
115 DCHECK(IsRunning()); | 123 DCHECK(IsRunning()); |
116 if (!ignore_location_updates_) { | 124 if (!ignore_location_updates_) { |
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133 task = base::Bind(&GeolocationProviderImpl::StartProviders, | 141 task = base::Bind(&GeolocationProviderImpl::StartProviders, |
134 base::Unretained(this), enable_high_accuracy); | 142 base::Unretained(this), enable_high_accuracy); |
135 } | 143 } |
136 | 144 |
137 task_runner()->PostTask(FROM_HERE, task); | 145 task_runner()->PostTask(FROM_HERE, task); |
138 } | 146 } |
139 | 147 |
140 void GeolocationProviderImpl::StopProviders() { | 148 void GeolocationProviderImpl::StopProviders() { |
141 DCHECK(OnGeolocationThread()); | 149 DCHECK(OnGeolocationThread()); |
142 DCHECK(arbitrator_); | 150 DCHECK(arbitrator_); |
143 arbitrator_->StopProviders(); | 151 arbitrator_->StopProvider(); |
144 } | 152 } |
145 | 153 |
146 void GeolocationProviderImpl::StartProviders(bool enable_high_accuracy) { | 154 void GeolocationProviderImpl::StartProviders(bool enable_high_accuracy) { |
147 DCHECK(OnGeolocationThread()); | 155 DCHECK(OnGeolocationThread()); |
148 DCHECK(arbitrator_); | 156 DCHECK(arbitrator_); |
149 arbitrator_->StartProviders(enable_high_accuracy); | 157 arbitrator_->StartProvider(enable_high_accuracy); |
150 } | 158 } |
151 | 159 |
152 void GeolocationProviderImpl::InformProvidersPermissionGranted() { | 160 void GeolocationProviderImpl::InformProvidersPermissionGranted() { |
153 DCHECK(IsRunning()); | 161 DCHECK(IsRunning()); |
154 if (!OnGeolocationThread()) { | 162 if (!OnGeolocationThread()) { |
155 task_runner()->PostTask( | 163 task_runner()->PostTask( |
156 FROM_HERE, | 164 FROM_HERE, |
157 base::Bind(&GeolocationProviderImpl::InformProvidersPermissionGranted, | 165 base::Bind(&GeolocationProviderImpl::InformProvidersPermissionGranted, |
158 base::Unretained(this))); | 166 base::Unretained(this))); |
159 return; | 167 return; |
160 } | 168 } |
161 DCHECK(OnGeolocationThread()); | 169 DCHECK(OnGeolocationThread()); |
162 DCHECK(arbitrator_); | 170 DCHECK(arbitrator_); |
163 arbitrator_->OnPermissionGranted(); | 171 arbitrator_->OnPermissionGranted(); |
164 } | 172 } |
165 | 173 |
166 void GeolocationProviderImpl::NotifyClients(const Geoposition& position) { | 174 void GeolocationProviderImpl::NotifyClients(const Geoposition& position) { |
167 DCHECK(main_task_runner_->BelongsToCurrentThread()); | 175 DCHECK(main_task_runner_->BelongsToCurrentThread()); |
168 DCHECK(position.Validate() || | 176 DCHECK(position.Validate() || |
169 position.error_code != Geoposition::ERROR_CODE_NONE); | 177 position.error_code != Geoposition::ERROR_CODE_NONE); |
170 position_ = position; | 178 position_ = position; |
171 high_accuracy_callbacks_.Notify(position_); | 179 high_accuracy_callbacks_.Notify(position_); |
172 low_accuracy_callbacks_.Notify(position_); | 180 low_accuracy_callbacks_.Notify(position_); |
173 } | 181 } |
174 | 182 |
175 void GeolocationProviderImpl::Init() { | 183 void GeolocationProviderImpl::Init() { |
176 DCHECK(OnGeolocationThread()); | 184 DCHECK(OnGeolocationThread()); |
177 DCHECK(!arbitrator_); | 185 |
178 arbitrator_ = CreateArbitrator(); | 186 if (!arbitrator_) { |
| 187 LocationProvider::LocationProviderUpdateCallback callback = base::Bind( |
| 188 &GeolocationProviderImpl::OnLocationUpdate, base::Unretained(this)); |
| 189 // Use the embedder's |g_delegate| or fall back to the default one. |
| 190 if (!g_delegate.Get()) |
| 191 g_delegate.Get().reset(new GeolocationDelegate); |
| 192 |
| 193 arbitrator_ = |
| 194 base::MakeUnique<LocationArbitratorImpl>(g_delegate.Get().get()); |
| 195 arbitrator_->SetUpdateCallback(callback); |
| 196 } |
179 } | 197 } |
180 | 198 |
181 void GeolocationProviderImpl::CleanUp() { | 199 void GeolocationProviderImpl::CleanUp() { |
182 DCHECK(OnGeolocationThread()); | 200 DCHECK(OnGeolocationThread()); |
183 arbitrator_.reset(); | 201 arbitrator_.reset(); |
184 } | 202 } |
185 | 203 |
186 std::unique_ptr<LocationArbitrator> | |
187 GeolocationProviderImpl::CreateArbitrator() { | |
188 LocationArbitratorImpl::LocationUpdateCallback callback = base::Bind( | |
189 &GeolocationProviderImpl::OnLocationUpdate, base::Unretained(this)); | |
190 // Use the embedder's |g_delegate| or fall back to the default one. | |
191 if (!g_delegate.Get()) | |
192 g_delegate.Get().reset(new GeolocationDelegate); | |
193 | |
194 return base::MakeUnique<LocationArbitratorImpl>(callback, | |
195 g_delegate.Get().get()); | |
196 } | |
197 | |
198 } // namespace device | 204 } // namespace device |
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