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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_PREF_STORE_IMPL_H_ | |
6 #define SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_IMPL_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "base/macros.h" | |
11 #include "base/memory/ref_counted.h" | |
12 #include "components/prefs/pref_store.h" | |
13 #include "components/prefs/pref_value_store.h" | |
14 #include "mojo/public/cpp/bindings/binding.h" | |
15 #include "services/preferences/public/interfaces/preferences.mojom.h" | |
16 | |
17 namespace prefs { | |
18 | |
19 // Wraps an actual PrefStore implementation and exposes it as a | |
20 // mojom::PrefStore interface. | |
21 class PrefStoreImpl : public ::PrefStore::Observer, public mojom::PrefStore { | |
22 public: | |
23 // The created instance is registered in and owned by the | |
24 // |mojom::PrefStoreRegistry|. | |
25 static std::unique_ptr<PrefStoreImpl> Create( | |
Sam McNally
2017/03/03 03:47:58
Methods after destructors.
tibell
2017/03/07 00:52:52
Done.
| |
26 mojom::PrefStoreRegistryPtr registry_ptr, | |
27 scoped_refptr<::PrefStore> pref_store, | |
28 PrefValueStore::PrefStoreType type); | |
29 | |
30 PrefStoreImpl(scoped_refptr<::PrefStore> pref_store, | |
31 mojom::PrefStoreRequest request); | |
32 ~PrefStoreImpl() override; | |
33 | |
34 private: | |
35 // PrefStore::Observer: | |
36 void OnPrefValueChanged(const std::string& key) override; | |
37 void OnInitializationCompleted(bool succeeded) override; | |
38 | |
39 // prefs::mojom::PrefStore: | |
40 void AddObserver(const AddObserverCallback& callback) override; | |
41 | |
42 // The backing store we observer for changes. This a |WeakPtr| because if we | |
Sam McNally
2017/03/03 03:47:58
I think this comment is mostly no longer necessary
tibell
2017/03/07 00:52:52
Done.
| |
43 // hold on to the |PrefStore| until this is torned down we mess up shutdown | |
44 // order, which e.g. depends on when the |Profile| is deleted. This is quite | |
45 // unsatisfactory. | |
46 scoped_refptr<::PrefStore> backing_pref_store_; | |
47 | |
48 // Observers we notify when |backing_pref_store_| changes. | |
49 std::vector<mojom::PrefStoreObserverPtr> observers_; | |
50 | |
51 // True when the |backing_pref_store_| is initialized, either because it was | |
52 // passed already initialized in the constructor or after | |
53 // OnInitializationCompleted was called. | |
54 bool initialized_; | |
Sam McNally
2017/03/03 03:47:58
How about naming this |backing_pref_store_initiali
tibell
2017/03/07 00:52:52
Done.
| |
55 | |
56 mojo::Binding<mojom::PrefStore> binding_; | |
57 | |
58 DISALLOW_COPY_AND_ASSIGN(PrefStoreImpl); | |
59 }; | |
60 | |
61 } // namespace prefs | |
62 | |
63 #endif // SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_IMPL_H_ | |
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