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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 // This provides a way to access the application's current preferences. | 5 // This provides a way to access the application's current preferences. |
6 | 6 |
7 // Chromium settings and storage represent user-selected preferences and | 7 // Chromium settings and storage represent user-selected preferences and |
8 // information and MUST not be extracted, overwritten or modified except | 8 // information and MUST not be extracted, overwritten or modified except |
9 // through Chromium defined APIs. | 9 // through Chromium defined APIs. |
10 | 10 |
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166 // registered. | 166 // registered. |
167 const PrefService::Preference* FindPreference(const char* path) const; | 167 const PrefService::Preference* FindPreference(const char* path) const; |
168 | 168 |
169 // If the path is valid and the value at the end of the path matches the type | 169 // If the path is valid and the value at the end of the path matches the type |
170 // specified, it will return the specified value. Otherwise, the default | 170 // specified, it will return the specified value. Otherwise, the default |
171 // value (set when the pref was registered) will be returned. | 171 // value (set when the pref was registered) will be returned. |
172 bool GetBoolean(const char* path) const; | 172 bool GetBoolean(const char* path) const; |
173 int GetInteger(const char* path) const; | 173 int GetInteger(const char* path) const; |
174 double GetDouble(const char* path) const; | 174 double GetDouble(const char* path) const; |
175 std::string GetString(const char* path) const; | 175 std::string GetString(const char* path) const; |
| 176 int64 GetInt64(const char* path) const; |
| 177 uint64 GetUint64(const char* path) const; |
176 base::FilePath GetFilePath(const char* path) const; | 178 base::FilePath GetFilePath(const char* path) const; |
177 | 179 |
178 // Returns the branch if it exists, or the registered default value otherwise. | 180 // Returns the branch if it exists, or the registered default value otherwise. |
179 // Note that |path| must point to a registered preference. In that case, these | 181 // Note that |path| must point to a registered preference. In that case, these |
180 // functions will never return NULL. | 182 // functions will never return NULL. |
181 const base::DictionaryValue* GetDictionary( | 183 const base::DictionaryValue* GetDictionary( |
182 const char* path) const; | 184 const char* path) const; |
183 const base::ListValue* GetList(const char* path) const; | 185 const base::ListValue* GetList(const char* path) const; |
184 | 186 |
185 // Removes a user pref and restores the pref to its default value. | 187 // Removes a user pref and restores the pref to its default value. |
186 void ClearPref(const char* path); | 188 void ClearPref(const char* path); |
187 | 189 |
188 // If the path is valid (i.e., registered), update the pref value in the user | 190 // If the path is valid (i.e., registered), update the pref value in the user |
189 // prefs. | 191 // prefs. |
190 // To set the value of dictionary or list values in the pref tree use | 192 // To set the value of dictionary or list values in the pref tree use |
191 // Set(), but to modify the value of a dictionary or list use either | 193 // Set(), but to modify the value of a dictionary or list use either |
192 // ListPrefUpdate or DictionaryPrefUpdate from scoped_user_pref_update.h. | 194 // ListPrefUpdate or DictionaryPrefUpdate from scoped_user_pref_update.h. |
193 void Set(const char* path, const base::Value& value); | 195 void Set(const char* path, const base::Value& value); |
194 void SetBoolean(const char* path, bool value); | 196 void SetBoolean(const char* path, bool value); |
195 void SetInteger(const char* path, int value); | 197 void SetInteger(const char* path, int value); |
196 void SetDouble(const char* path, double value); | 198 void SetDouble(const char* path, double value); |
197 void SetString(const char* path, const std::string& value); | 199 void SetString(const char* path, const std::string& value); |
| 200 void SetInt64(const char* path, int64 value); |
| 201 void SetUint64(const char* path, uint64 value); |
198 void SetFilePath(const char* path, const base::FilePath& value); | 202 void SetFilePath(const char* path, const base::FilePath& value); |
199 | 203 |
200 // Int64 helper methods that actually store the given value as a string. | |
201 // Note that if obtaining the named value via GetDictionary or GetList, the | |
202 // Value type will be TYPE_STRING. | |
203 void SetInt64(const char* path, int64 value); | |
204 int64 GetInt64(const char* path) const; | |
205 | |
206 // As above, but for unsigned values. | |
207 void SetUint64(const char* path, uint64 value); | |
208 uint64 GetUint64(const char* path) const; | |
209 | |
210 // Returns the value of the given preference, from the user pref store. If | 204 // Returns the value of the given preference, from the user pref store. If |
211 // the preference is not set in the user pref store, returns NULL. | 205 // the preference is not set in the user pref store, returns NULL. |
212 const base::Value* GetUserPrefValue(const char* path) const; | 206 const base::Value* GetUserPrefValue(const char* path) const; |
213 | 207 |
214 // Changes the default value for a preference. Takes ownership of |value|. | 208 // Changes the default value for a preference. Takes ownership of |value|. |
215 // | 209 // |
216 // Will cause a pref change notification to be fired if this causes | 210 // Will cause a pref change notification to be fired if this causes |
217 // the effective value to change. | 211 // the effective value to change. |
218 void SetDefaultPrefValue(const char* path, base::Value* value); | 212 void SetDefaultPrefValue(const char* path, base::Value* value); |
219 | 213 |
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350 | 344 |
351 // Local cache of registered Preference objects. The pref_registry_ | 345 // Local cache of registered Preference objects. The pref_registry_ |
352 // is authoritative with respect to what the types and default values | 346 // is authoritative with respect to what the types and default values |
353 // of registered preferences are. | 347 // of registered preferences are. |
354 mutable PreferenceMap prefs_map_; | 348 mutable PreferenceMap prefs_map_; |
355 | 349 |
356 DISALLOW_COPY_AND_ASSIGN(PrefService); | 350 DISALLOW_COPY_AND_ASSIGN(PrefService); |
357 }; | 351 }; |
358 | 352 |
359 #endif // BASE_PREFS_PREF_SERVICE_H_ | 353 #endif // BASE_PREFS_PREF_SERVICE_H_ |
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