OLD | NEW |
1 // Copyright 2017 The Chromium Authors. All rights reserved. | 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 | 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 SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_CLIENT_H_ | 5 #ifndef SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_CLIENT_H_ |
6 #define SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_CLIENT_H_ | 6 #define SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_CLIENT_H_ |
7 | 7 |
8 #include <string> | |
9 | |
10 #include "base/macros.h" | 8 #include "base/macros.h" |
11 #include "base/observer_list.h" | |
12 #include "base/values.h" | |
13 #include "components/prefs/pref_store.h" | 9 #include "components/prefs/pref_store.h" |
14 #include "components/prefs/pref_value_map.h" | 10 #include "services/preferences/public/cpp/pref_store_client_mixin.h" |
15 #include "mojo/public/cpp/bindings/binding.h" | |
16 #include "services/preferences/public/cpp/pref_store_manager_impl.h" | |
17 #include "services/preferences/public/interfaces/preferences.mojom.h" | 11 #include "services/preferences/public/interfaces/preferences.mojom.h" |
18 | 12 |
19 namespace prefs { | 13 namespace prefs { |
20 | 14 |
21 // TODO(tibell): Make PrefObserverStore use PrefStoreClient as a base class. | 15 // TODO(tibell): Make PrefObserverStore use PrefStoreClient as a base class. |
22 | 16 |
23 // An implementation of PrefStore which uses prefs::mojom::PrefStore as | 17 // An implementation of PrefStore which uses prefs::mojom::PrefStore as |
24 // the backing store of the preferences. | 18 // the backing store of the preferences. |
25 // | 19 // |
26 // PrefStoreClient provides synchronous access to the preferences stored by the | 20 // PrefStoreClient provides synchronous access to the preferences stored by the |
27 // backing store by caching them locally. | 21 // backing store by caching them locally. |
28 class PrefStoreClient : public ::PrefStore, public mojom::PrefStoreObserver { | 22 class PrefStoreClient : public PrefStoreClientMixin<::PrefStore> { |
29 public: | 23 public: |
30 explicit PrefStoreClient(mojom::PrefStoreConnectionPtr connection); | 24 explicit PrefStoreClient(mojom::PrefStoreConnectionPtr connection); |
31 | 25 |
32 // PrefStore: | |
33 void AddObserver(PrefStore::Observer* observer) override; | |
34 void RemoveObserver(PrefStore::Observer* observer) override; | |
35 bool HasObservers() const override; | |
36 bool IsInitializationComplete() const override; | |
37 bool GetValue(const std::string& key, | |
38 const base::Value** result) const override; | |
39 std::unique_ptr<base::DictionaryValue> GetValues() const override; | |
40 | |
41 private: | 26 private: |
42 friend class PrefStoreClientTest; | |
43 | |
44 ~PrefStoreClient() override; | 27 ~PrefStoreClient() override; |
45 | 28 |
46 // prefs::mojom::PreferenceObserver: | |
47 void OnPrefChanged(const std::string& key, | |
48 std::unique_ptr<base::Value> value) override; | |
49 void OnInitializationCompleted(bool succeeded) override; | |
50 | |
51 // Cached preferences. | |
52 std::unique_ptr<base::DictionaryValue> cached_prefs_; | |
53 | |
54 base::ObserverList<PrefStore::Observer, true> observers_; | |
55 | |
56 // Has the PrefStore we're observing been initialized? | |
57 bool initialized_; | |
58 | |
59 mojo::Binding<mojom::PrefStoreObserver> observer_binding_; | |
60 | |
61 DISALLOW_COPY_AND_ASSIGN(PrefStoreClient); | 29 DISALLOW_COPY_AND_ASSIGN(PrefStoreClient); |
62 }; | 30 }; |
63 | 31 |
64 } // namespace prefs | 32 } // namespace prefs |
65 | 33 |
66 #endif // SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_CLIENT_H_ | 34 #endif // SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_CLIENT_H_ |
OLD | NEW |