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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 #ifndef BASE_PREFS_PREF_REGISTRY_H_ | 5 #ifndef COMPONENTS_PREFS_PREF_REGISTRY_H_ |
6 #define BASE_PREFS_PREF_REGISTRY_H_ | 6 #define COMPONENTS_PREFS_PREF_REGISTRY_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include "base/containers/hash_tables.h" | 10 #include "base/containers/hash_tables.h" |
11 #include "base/macros.h" | 11 #include "base/macros.h" |
12 #include "base/memory/ref_counted.h" | 12 #include "base/memory/ref_counted.h" |
13 #include "components/prefs/base_prefs_export.h" | 13 #include "components/prefs/base_prefs_export.h" |
14 #include "components/prefs/pref_value_map.h" | 14 #include "components/prefs/pref_value_map.h" |
15 | 15 |
16 namespace base { | 16 namespace base { |
17 class Value; | 17 class Value; |
18 } | 18 } |
19 | 19 |
20 class DefaultPrefStore; | 20 class DefaultPrefStore; |
21 class PrefStore; | 21 class PrefStore; |
22 | 22 |
23 // Preferences need to be registered with a type and default value | 23 // Preferences need to be registered with a type and default value |
24 // before they are used. | 24 // before they are used. |
25 // | 25 // |
26 // The way you use a PrefRegistry is that you register all required | 26 // The way you use a PrefRegistry is that you register all required |
27 // preferences on it (via one of its subclasses), then pass it as a | 27 // preferences on it (via one of its subclasses), then pass it as a |
28 // construction parameter to PrefService. | 28 // construction parameter to PrefService. |
29 // | 29 // |
30 // Currently, registrations after constructing the PrefService will | 30 // Currently, registrations after constructing the PrefService will |
31 // also work, but this is being deprecated. | 31 // also work, but this is being deprecated. |
32 class BASE_PREFS_EXPORT PrefRegistry : public base::RefCounted<PrefRegistry> { | 32 class COMPONENTS_PREFS_EXPORT PrefRegistry |
| 33 : public base::RefCounted<PrefRegistry> { |
33 public: | 34 public: |
34 // Registration flags that can be specified which impact how the pref will | 35 // Registration flags that can be specified which impact how the pref will |
35 // behave or be stored. This will be passed in a bitmask when the pref is | 36 // behave or be stored. This will be passed in a bitmask when the pref is |
36 // registered. Subclasses of PrefRegistry can specify their own flags. Care | 37 // registered. Subclasses of PrefRegistry can specify their own flags. Care |
37 // must be taken to ensure none of these overlap with the flags below. | 38 // must be taken to ensure none of these overlap with the flags below. |
38 enum PrefRegistrationFlags : uint32_t { | 39 enum PrefRegistrationFlags : uint32_t { |
39 // No flags are specified. | 40 // No flags are specified. |
40 NO_REGISTRATION_FLAGS = 0, | 41 NO_REGISTRATION_FLAGS = 0, |
41 | 42 |
42 // The first 8 bits are reserved for subclasses of PrefRegistry to use. | 43 // The first 8 bits are reserved for subclasses of PrefRegistry to use. |
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79 | 80 |
80 scoped_refptr<DefaultPrefStore> defaults_; | 81 scoped_refptr<DefaultPrefStore> defaults_; |
81 | 82 |
82 // A map of pref name to a bitmask of PrefRegistrationFlags. | 83 // A map of pref name to a bitmask of PrefRegistrationFlags. |
83 PrefRegistrationFlagsMap registration_flags_; | 84 PrefRegistrationFlagsMap registration_flags_; |
84 | 85 |
85 private: | 86 private: |
86 DISALLOW_COPY_AND_ASSIGN(PrefRegistry); | 87 DISALLOW_COPY_AND_ASSIGN(PrefRegistry); |
87 }; | 88 }; |
88 | 89 |
89 #endif // BASE_PREFS_PREF_REGISTRY_H_ | 90 #endif // COMPONENTS_PREFS_PREF_REGISTRY_H_ |
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