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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_PREFS_PREF_SERVICE_BUILDER_H_ | |
| 6 #define CHROME_BROWSER_PREFS_PREF_SERVICE_BUILDER_H_ | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/callback.h" | |
| 10 #include "base/memory/ref_counted.h" | |
| 11 #include "base/prefs/persistent_pref_store.h" | |
| 12 #include "base/prefs/pref_store.h" | |
| 13 #include "chrome/browser/prefs/pref_registry.h" | |
| 14 | |
| 15 class PrefService; | |
| 16 | |
| 17 namespace base { | |
| 18 class FilePath; | |
| 19 class SequencedTaskRunner; | |
| 20 } | |
| 21 | |
| 22 // A class that allows convenient building of PrefService. | |
| 23 class PrefServiceBuilder { | |
| 24 public: | |
| 25 PrefServiceBuilder(); | |
| 26 virtual ~PrefServiceBuilder(); | |
| 27 | |
| 28 // Functions for setting the various parameters of the PrefService to build. | |
| 29 // These take ownership of the |store| parameter. | |
| 30 PrefServiceBuilder& WithManagedPrefs(PrefStore* store); | |
| 31 PrefServiceBuilder& WithExtensionPrefs(PrefStore* store); | |
| 32 PrefServiceBuilder& WithCommandLinePrefs(PrefStore* store); | |
| 33 PrefServiceBuilder& WithUserPrefs(PersistentPrefStore* store); | |
| 34 PrefServiceBuilder& WithRecommendedPrefs(PrefStore* store); | |
| 35 | |
| 36 // Sets up error callback for the PrefService. A do-nothing default | |
| 37 // is provided if this is not called. | |
| 38 PrefServiceBuilder& WithReadErrorCallback( | |
| 39 const base::Callback<void(PersistentPrefStore::PrefReadError)>& | |
| 40 read_error_callback); | |
| 41 | |
| 42 // Specifies to use an actual file-backed user pref store. | |
| 43 PrefServiceBuilder& WithUserFilePrefs( | |
| 44 const base::FilePath& prefs_file, | |
| 45 base::SequencedTaskRunner* task_runner); | |
| 46 | |
| 47 PrefServiceBuilder& WithAsync(bool async); | |
| 48 | |
| 49 // Creates a PrefService object initialized with the parameters from | |
| 50 // this builder. | |
| 51 virtual PrefService* Create(PrefRegistry* registry); | |
| 52 | |
| 53 protected: | |
| 54 virtual void ResetDefaultState(); | |
| 55 | |
| 56 scoped_refptr<PrefStore> managed_prefs_; | |
| 57 scoped_refptr<PrefStore> extension_prefs_; | |
| 58 scoped_refptr<PrefStore> command_line_prefs_; | |
| 59 scoped_refptr<PersistentPrefStore> user_prefs_; | |
| 60 scoped_refptr<PrefStore> recommended_prefs_; | |
| 61 | |
| 62 base::Callback<void(PersistentPrefStore::PrefReadError)> read_error_callback_; | |
| 63 | |
| 64 // Defaults to false. | |
| 65 bool async_; | |
| 66 | |
| 67 private: | |
| 68 DISALLOW_COPY_AND_ASSIGN(PrefServiceBuilder); | |
| 69 }; | |
| 70 | |
| 71 #endif // CHROME_BROWSER_PREFS_PREF_SERVICE_BUILDER_H_ | |
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