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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 // A helper class that stays in sync with a preference (bool, int, real, | 5 // A helper class that stays in sync with a preference (bool, int, real, |
6 // string or filepath). For example: | 6 // string or filepath). For example: |
7 // | 7 // |
8 // class MyClass { | 8 // class MyClass { |
9 // public: | 9 // public: |
10 // MyClass(PrefService* prefs) { | 10 // MyClass(PrefService* prefs) { |
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145 NamedChangeCallback observer_; | 145 NamedChangeCallback observer_; |
146 PrefServiceBase* prefs_; | 146 PrefServiceBase* prefs_; |
147 | 147 |
148 protected: | 148 protected: |
149 bool setting_value_; | 149 bool setting_value_; |
150 }; | 150 }; |
151 | 151 |
152 // This function implements StringListPrefMember::UpdateValue(). | 152 // This function implements StringListPrefMember::UpdateValue(). |
153 // It is exposed here for testing purposes. | 153 // It is exposed here for testing purposes. |
154 bool BASE_PREFS_EXPORT PrefMemberVectorStringUpdate( | 154 bool BASE_PREFS_EXPORT PrefMemberVectorStringUpdate( |
155 const Value& value, | 155 const base::Value& value, |
156 std::vector<std::string>* string_vector); | 156 std::vector<std::string>* string_vector); |
157 | 157 |
158 } // namespace subtle | 158 } // namespace subtle |
159 | 159 |
160 template <typename ValueType> | 160 template <typename ValueType> |
161 class PrefMember : public subtle::PrefMemberBase { | 161 class PrefMember : public subtle::PrefMemberBase { |
162 public: | 162 public: |
163 // Defer initialization to an Init method so it's easy to make this class be | 163 // Defer initialization to an Init method so it's easy to make this class be |
164 // a member variable. | 164 // a member variable. |
165 PrefMember() {} | 165 PrefMember() {} |
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316 template <> | 316 template <> |
317 BASE_PREFS_EXPORT bool PrefMember<double>::Internal::UpdateValueInternal( | 317 BASE_PREFS_EXPORT bool PrefMember<double>::Internal::UpdateValueInternal( |
318 const Value& value) const; | 318 const Value& value) const; |
319 | 319 |
320 template <> | 320 template <> |
321 BASE_PREFS_EXPORT void PrefMember<std::string>::UpdatePref( | 321 BASE_PREFS_EXPORT void PrefMember<std::string>::UpdatePref( |
322 const std::string& value); | 322 const std::string& value); |
323 | 323 |
324 template <> | 324 template <> |
325 BASE_PREFS_EXPORT bool PrefMember<std::string>::Internal::UpdateValueInternal( | 325 BASE_PREFS_EXPORT bool PrefMember<std::string>::Internal::UpdateValueInternal( |
326 const Value& value) const; | 326 const base::Value& value) const; |
327 | 327 |
328 template <> | 328 template <> |
329 BASE_PREFS_EXPORT void PrefMember<FilePath>::UpdatePref(const FilePath& value); | 329 BASE_PREFS_EXPORT void PrefMember<base::FilePath>::UpdatePref( |
| 330 const base::FilePath& value); |
330 | 331 |
331 template <> | 332 template <> |
332 BASE_PREFS_EXPORT bool PrefMember<FilePath>::Internal::UpdateValueInternal( | 333 BASE_PREFS_EXPORT bool |
333 const Value& value) const; | 334 PrefMember<base::FilePath>::Internal::UpdateValueInternal( |
| 335 const base::Value& value) const; |
334 | 336 |
335 template <> | 337 template <> |
336 BASE_PREFS_EXPORT void PrefMember<std::vector<std::string> >::UpdatePref( | 338 BASE_PREFS_EXPORT void PrefMember<std::vector<std::string> >::UpdatePref( |
337 const std::vector<std::string>& value); | 339 const std::vector<std::string>& value); |
338 | 340 |
339 template <> | 341 template <> |
340 BASE_PREFS_EXPORT bool | 342 BASE_PREFS_EXPORT bool |
341 PrefMember<std::vector<std::string> >::Internal::UpdateValueInternal( | 343 PrefMember<std::vector<std::string> >::Internal::UpdateValueInternal( |
342 const Value& value) const; | 344 const base::Value& value) const; |
343 | 345 |
344 typedef PrefMember<bool> BooleanPrefMember; | 346 typedef PrefMember<bool> BooleanPrefMember; |
345 typedef PrefMember<int> IntegerPrefMember; | 347 typedef PrefMember<int> IntegerPrefMember; |
346 typedef PrefMember<double> DoublePrefMember; | 348 typedef PrefMember<double> DoublePrefMember; |
347 typedef PrefMember<std::string> StringPrefMember; | 349 typedef PrefMember<std::string> StringPrefMember; |
348 typedef PrefMember<FilePath> FilePathPrefMember; | 350 typedef PrefMember<base::FilePath> FilePathPrefMember; |
349 // This preference member is expensive for large string arrays. | 351 // This preference member is expensive for large string arrays. |
350 typedef PrefMember<std::vector<std::string> > StringListPrefMember; | 352 typedef PrefMember<std::vector<std::string> > StringListPrefMember; |
351 | 353 |
352 #endif // BASE_PREFS_PUBLIC_PREF_MEMBER_H_ | 354 #endif // BASE_PREFS_PUBLIC_PREF_MEMBER_H_ |
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