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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "components/search_engines/default_search_manager.h" | 5 #include "components/search_engines/default_search_manager.h" |
6 | 6 |
7 #include <stddef.h> | 7 #include <stddef.h> |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <algorithm> | 10 #include <algorithm> |
11 #include <utility> | 11 #include <utility> |
12 | 12 |
13 #include "base/bind.h" | 13 #include "base/bind.h" |
14 #include "base/bind_helpers.h" | 14 #include "base/bind_helpers.h" |
15 #include "base/compiler_specific.h" | 15 #include "base/compiler_specific.h" |
16 #include "base/i18n/case_conversion.h" | 16 #include "base/i18n/case_conversion.h" |
17 #include "base/logging.h" | 17 #include "base/logging.h" |
18 #include "base/strings/string_number_conversions.h" | |
19 #include "base/strings/string_split.h" | 18 #include "base/strings/string_split.h" |
20 #include "base/strings/string_util.h" | 19 #include "base/strings/string_util.h" |
21 #include "base/strings/utf_string_conversions.h" | 20 #include "base/strings/utf_string_conversions.h" |
22 #include "base/time/time.h" | 21 #include "base/time/time.h" |
23 #include "components/pref_registry/pref_registry_syncable.h" | 22 #include "components/pref_registry/pref_registry_syncable.h" |
24 #include "components/prefs/pref_service.h" | 23 #include "components/prefs/pref_service.h" |
25 #include "components/prefs/pref_value_map.h" | 24 #include "components/prefs/pref_value_map.h" |
26 #include "components/search_engines/search_engines_pref_names.h" | 25 #include "components/search_engines/search_engines_pref_names.h" |
27 #include "components/search_engines/template_url_data.h" | 26 #include "components/search_engines/template_url_data.h" |
28 #include "components/search_engines/template_url_data_util.h" | 27 #include "components/search_engines/template_url_data_util.h" |
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133 if (extension_default_search_) { | 132 if (extension_default_search_) { |
134 if (source) | 133 if (source) |
135 *source = FROM_EXTENSION; | 134 *source = FROM_EXTENSION; |
136 return extension_default_search_.get(); | 135 return extension_default_search_.get(); |
137 } | 136 } |
138 if (prefs_default_search_) { | 137 if (prefs_default_search_) { |
139 if (source) | 138 if (source) |
140 *source = FROM_USER; | 139 *source = FROM_USER; |
141 return prefs_default_search_.get(); | 140 return prefs_default_search_.get(); |
142 } | 141 } |
143 | |
144 if (source) | 142 if (source) |
145 *source = FROM_FALLBACK; | 143 *source = FROM_FALLBACK; |
146 return g_fallback_search_engines_disabled ? | 144 return g_fallback_search_engines_disabled ? |
147 NULL : fallback_default_search_.get(); | 145 NULL : fallback_default_search_.get(); |
148 } | 146 } |
149 | 147 |
150 DefaultSearchManager::Source | 148 DefaultSearchManager::Source |
151 DefaultSearchManager::GetDefaultSearchEngineSource() const { | 149 DefaultSearchManager::GetDefaultSearchEngineSource() const { |
152 Source source; | 150 Source source; |
153 GetDefaultSearchEngine(&source); | 151 GetDefaultSearchEngine(&source); |
154 return source; | 152 return source; |
155 } | 153 } |
156 | 154 |
157 void DefaultSearchManager::SetUserSelectedDefaultSearchEngine( | 155 void DefaultSearchManager::SetUserSelectedDefaultSearchEngine( |
158 const TemplateURLData& data) { | 156 const TemplateURLData& data) { |
159 if (!pref_service_) { | 157 if (!pref_service_) { |
160 prefs_default_search_.reset(new TemplateURLData(data)); | 158 prefs_default_search_.reset(new TemplateURLData(data)); |
161 MergePrefsDataWithPrepopulated(); | 159 MergePrefsDataWithPrepopulated(); |
162 NotifyObserver(); | 160 NotifyObserver(); |
163 return; | 161 return; |
164 } | 162 } |
165 | 163 |
166 pref_service_->Set(kDefaultSearchProviderDataPrefName, | 164 pref_service_->Set(kDefaultSearchProviderDataPrefName, |
167 *TemplateURLDataToDictionary(data)); | 165 *TemplateURLDataToDictionary(data)); |
168 } | 166 } |
169 | 167 |
170 void DefaultSearchManager::SetExtensionControlledDefaultSearchEngine( | |
171 const TemplateURLData& data) { | |
172 extension_default_search_.reset(new TemplateURLData(data)); | |
173 if (GetDefaultSearchEngineSource() == FROM_EXTENSION) | |
174 NotifyObserver(); | |
175 } | |
176 | |
177 void DefaultSearchManager::ClearExtensionControlledDefaultSearchEngine() { | |
178 Source old_source = GetDefaultSearchEngineSource(); | |
179 extension_default_search_.reset(); | |
180 if (old_source == FROM_EXTENSION) | |
181 NotifyObserver(); | |
182 } | |
183 | |
184 void DefaultSearchManager::ClearUserSelectedDefaultSearchEngine() { | 168 void DefaultSearchManager::ClearUserSelectedDefaultSearchEngine() { |
185 if (pref_service_) { | 169 if (pref_service_) { |
186 pref_service_->ClearPref(kDefaultSearchProviderDataPrefName); | 170 pref_service_->ClearPref(kDefaultSearchProviderDataPrefName); |
187 } else { | 171 } else { |
188 prefs_default_search_.reset(); | 172 prefs_default_search_.reset(); |
189 NotifyObserver(); | 173 NotifyObserver(); |
190 } | 174 } |
191 } | 175 } |
192 | 176 |
193 void DefaultSearchManager::OnDefaultSearchPrefChanged() { | 177 void DefaultSearchManager::OnDefaultSearchPrefChanged() { |
194 Source source = GetDefaultSearchEngineSource(); | 178 Source source = GetDefaultSearchEngineSource(); |
Peter Kasting
2016/12/22 20:49:03
Nit: I found this function unclear for a while unt
Alexander Yashkin
2016/12/23 19:44:08
Done, much clearer.
| |
195 LoadDefaultSearchEngineFromPrefs(); | 179 LoadDefaultSearchEngineFromPrefs(); |
196 | 180 |
197 // If we were/are FROM_USER or FROM_POLICY the effective DSE may have changed. | 181 if (source == FROM_FALLBACK) |
198 if (source != FROM_USER && source != FROM_POLICY) | |
199 source = GetDefaultSearchEngineSource(); | 182 source = GetDefaultSearchEngineSource(); |
200 if (source == FROM_USER || source == FROM_POLICY) | 183 // The effective DSE may have changed if it was/become non fallback. |
184 if (source != FROM_FALLBACK) | |
201 NotifyObserver(); | 185 NotifyObserver(); |
202 } | 186 } |
203 | 187 |
204 void DefaultSearchManager::OnOverridesPrefChanged() { | 188 void DefaultSearchManager::OnOverridesPrefChanged() { |
205 LoadPrepopulatedDefaultSearch(); | 189 LoadPrepopulatedDefaultSearch(); |
206 | 190 |
207 TemplateURLData* effective_data = GetDefaultSearchEngine(NULL); | 191 TemplateURLData* effective_data = GetDefaultSearchEngine(NULL); |
208 if (effective_data && effective_data->prepopulate_id) { | 192 if (effective_data && effective_data->prepopulate_id) { |
209 // A user-selected, policy-selected or fallback pre-populated engine is | 193 // A user-selected, policy-selected or fallback pre-populated engine is |
210 // active and may have changed with this event. | 194 // active and may have changed with this event. |
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239 prefs_default_search_ = std::move(engine); | 223 prefs_default_search_ = std::move(engine); |
240 return; | 224 return; |
241 } | 225 } |
242 } | 226 } |
243 | 227 |
244 void DefaultSearchManager::LoadDefaultSearchEngineFromPrefs() { | 228 void DefaultSearchManager::LoadDefaultSearchEngineFromPrefs() { |
245 if (!pref_service_) | 229 if (!pref_service_) |
246 return; | 230 return; |
247 | 231 |
248 prefs_default_search_.reset(); | 232 prefs_default_search_.reset(); |
233 extension_default_search_.reset(); | |
249 const PrefService::Preference* pref = | 234 const PrefService::Preference* pref = |
250 pref_service_->FindPreference(kDefaultSearchProviderDataPrefName); | 235 pref_service_->FindPreference(kDefaultSearchProviderDataPrefName); |
251 DCHECK(pref); | 236 DCHECK(pref); |
252 default_search_controlled_by_policy_ = pref->IsManaged(); | 237 default_search_controlled_by_policy_ = pref->IsManaged(); |
253 | 238 |
254 const base::DictionaryValue* url_dict = | 239 const base::DictionaryValue* url_dict = |
255 pref_service_->GetDictionary(kDefaultSearchProviderDataPrefName); | 240 pref_service_->GetDictionary(kDefaultSearchProviderDataPrefName); |
256 if (url_dict->empty()) | 241 if (url_dict->empty()) |
257 return; | 242 return; |
258 | 243 |
259 if (default_search_controlled_by_policy_) { | 244 if (default_search_controlled_by_policy_) { |
260 bool disabled_by_policy = false; | 245 bool disabled_by_policy = false; |
261 if (url_dict->GetBoolean(kDisabledByPolicy, &disabled_by_policy) && | 246 if (url_dict->GetBoolean(kDisabledByPolicy, &disabled_by_policy) && |
262 disabled_by_policy) | 247 disabled_by_policy) |
263 return; | 248 return; |
264 } | 249 } |
265 | 250 |
266 auto turl_data = TemplateURLDataFromDictionary(*url_dict); | 251 auto turl_data = TemplateURLDataFromDictionary(*url_dict); |
267 if (!turl_data) | 252 if (!turl_data) |
268 return; | 253 return; |
269 | 254 |
270 prefs_default_search_ = std::move(turl_data); | 255 // Check if default search preference is overriden by extension. |
271 MergePrefsDataWithPrepopulated(); | 256 if (pref->IsExtensionControlled()) { |
257 extension_default_search_ = TemplateURLDataFromDictionary(*url_dict); | |
258 } else { | |
259 prefs_default_search_ = TemplateURLDataFromDictionary(*url_dict); | |
260 MergePrefsDataWithPrepopulated(); | |
261 } | |
272 } | 262 } |
273 | 263 |
274 void DefaultSearchManager::LoadPrepopulatedDefaultSearch() { | 264 void DefaultSearchManager::LoadPrepopulatedDefaultSearch() { |
275 std::unique_ptr<TemplateURLData> data = | 265 std::unique_ptr<TemplateURLData> data = |
276 TemplateURLPrepopulateData::GetPrepopulatedDefaultSearch(pref_service_); | 266 TemplateURLPrepopulateData::GetPrepopulatedDefaultSearch(pref_service_); |
277 fallback_default_search_ = std::move(data); | 267 fallback_default_search_ = std::move(data); |
278 MergePrefsDataWithPrepopulated(); | 268 MergePrefsDataWithPrepopulated(); |
279 } | 269 } |
280 | 270 |
281 void DefaultSearchManager::NotifyObserver() { | 271 void DefaultSearchManager::NotifyObserver() { |
282 if (!change_observer_.is_null()) { | 272 if (!change_observer_.is_null()) { |
283 Source source = FROM_FALLBACK; | 273 Source source = FROM_FALLBACK; |
284 TemplateURLData* data = GetDefaultSearchEngine(&source); | 274 TemplateURLData* data = GetDefaultSearchEngine(&source); |
285 change_observer_.Run(data, source); | 275 change_observer_.Run(data, source); |
286 } | 276 } |
287 } | 277 } |
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