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1 // Copyright 2017 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 SERVICES_PREFERENCES_PUBLIC_CPP_PERSISTENT_PREF_STORE_MOJO_H_ | |
6 #define SERVICES_PREFERENCES_PUBLIC_CPP_PERSISTENT_PREF_STORE_MOJO_H_ | |
7 | |
8 #include <memory> | |
9 #include <string> | |
10 | |
11 #include "base/macros.h" | |
12 #include "base/observer_list.h" | |
13 #include "components/prefs/persistent_pref_store.h" | |
14 #include "services/preferences/public/interfaces/preferences.mojom.h" | |
15 | |
16 namespace base { | |
17 class Value; | |
18 class DictionaryValue; | |
19 } | |
20 | |
21 namespace prefs { | |
22 | |
23 // An implementation of PersistentPrefStore which uses | |
24 // mojom::PersistentPrefStore as the backing of the preferences. | |
25 // | |
26 // TODO(sammc): Make this an implementation detail once the PrefService | |
27 // factory/builder is responsible for constructing the user prefs PrefStore. | |
28 class PersistentPrefStoreMojo : public PersistentPrefStore { | |
tibell
2017/03/08 03:39:54
Can we name this PersistentPrefStoreClient to matc
| |
29 public: | |
30 explicit PersistentPrefStoreMojo( | |
31 mojom::PersistentPrefStoreConnectorPtr connector); | |
32 | |
33 // PrefStore: | |
34 bool GetValue(const std::string& key, | |
35 const base::Value** value) const override; | |
36 std::unique_ptr<base::DictionaryValue> GetValues() const override; | |
37 void AddObserver(PrefStore::Observer* observer) override; | |
38 void RemoveObserver(PrefStore::Observer* observer) override; | |
39 bool HasObservers() const override; | |
40 bool IsInitializationComplete() const override; | |
41 | |
42 // WriteablePrefStore: | |
43 void SetValue(const std::string& key, | |
44 std::unique_ptr<base::Value> value, | |
45 uint32_t flags) override; | |
46 void RemoveValue(const std::string& key, uint32_t flags) override; | |
47 bool GetMutableValue(const std::string& key, base::Value** result) override; | |
48 void ReportValueChanged(const std::string& key, uint32_t flags) override; | |
49 void SetValueSilently(const std::string& key, | |
50 std::unique_ptr<base::Value> value, | |
51 uint32_t flags) override; | |
52 | |
53 // PersistentPrefStore: | |
54 bool ReadOnly() const override; | |
55 PrefReadError GetReadError() const override; | |
56 PrefReadError ReadPrefs() override; | |
57 void ReadPrefsAsync(ReadErrorDelegate* error_delegate) override; | |
58 void CommitPendingWrite() override; | |
59 void SchedulePendingLossyWrites() override; | |
60 void ClearMutableValues() override; | |
61 | |
62 protected: | |
63 // base::RefCounted<PrefStore>: | |
64 ~PersistentPrefStoreMojo() override; | |
65 | |
66 private: | |
67 void OnCreateComplete(PrefReadError read_error, | |
68 bool read_only, | |
69 std::unique_ptr<base::DictionaryValue> local_prefs, | |
70 mojom::PersistentPrefStorePtr pref_store); | |
71 | |
72 mojom::PersistentPrefStoreConnectorPtr connector_; | |
73 bool read_only_ = false; | |
74 PrefReadError read_error_ = PersistentPrefStore::PREF_READ_ERROR_NONE; | |
75 mojom::PersistentPrefStorePtr pref_store_; | |
76 mojom::PersistentPrefStoreRequest pref_store_request_; | |
77 | |
78 std::unique_ptr<base::DictionaryValue> local_prefs_; | |
79 | |
80 std::unique_ptr<ReadErrorDelegate> error_delegate_; | |
81 base::ObserverList<PrefStore::Observer, true> observers_; | |
82 | |
83 DISALLOW_COPY_AND_ASSIGN(PersistentPrefStoreMojo); | |
84 }; | |
85 | |
86 } // namespace prefs | |
87 | |
88 #endif // SERVICES_PREFERENCES_PUBLIC_CPP_PERSISTENT_PREF_STORE_MOJO_H_ | |
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