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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_MANAGER_IMPL_H_ | |
6 #define SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_MANAGER_IMPL_H_ | |
7 | |
8 #include "base/compiler_specific.h" | |
9 #include "base/macros.h" | |
10 #include "base/memory/ref_counted.h" | |
11 #include "components/prefs/pref_value_store.h" | |
12 #include "mojo/public/cpp/bindings/binding_set.h" | |
13 #include "services/preferences/public/interfaces/preferences.mojom.h" | |
14 #include "services/service_manager/public/cpp/interface_factory.h" | |
15 #include "services/service_manager/public/cpp/service.h" | |
16 | |
17 namespace prefs { | |
18 | |
19 // This class mediates the connection of clients who wants to read preferences | |
20 // and the pref stores that store those preferences. Pref stores use the | |
21 // |PrefStoreRegistry| interface to register themselves with the manager and | |
22 // clients use the |PrefStoreConnector| interface to connect to these stores. | |
23 class PrefStoreManagerImpl | |
24 : public mojom::PrefStoreRegistry, | |
25 public mojom::PrefStoreConnector, | |
26 public service_manager::InterfaceFactory<mojom::PrefStoreConnector>, | |
27 public service_manager::InterfaceFactory<mojom::PrefStoreRegistry>, | |
28 public service_manager::Service { | |
29 public: | |
30 using PrefStoreTypes = std::set<PrefValueStore::PrefStoreType>; | |
31 | |
32 // Only replies to Connect calls when all |expected_pref_stores| have | |
33 // registered. | |
34 PrefStoreManagerImpl(PrefStoreTypes expected_pref_stores); | |
Sam McNally
2017/03/03 03:47:58
explicit
tibell
2017/03/07 00:52:52
Done.
| |
35 ~PrefStoreManagerImpl() override; | |
36 | |
37 // PrefStores used by Chrome by default. | |
Sam McNally
2017/03/03 03:47:58
That's a layering violation. This should be somewh
tibell
2017/03/07 00:52:52
Done.
I just removed this for now. We'll do the s
| |
38 static PrefStoreTypes DefaultStores(); | |
39 | |
40 private: | |
41 // mojom::PrefStoreRegistry: | |
42 void Register(PrefValueStore::PrefStoreType type, | |
43 mojom::PrefStorePtr pref_store_ptr) override; | |
44 | |
45 // mojom::PrefStoreConnector: | |
46 void Connect(const ConnectCallback& callback) override; | |
47 | |
48 // service_manager::InterfaceFactory<PrefStoreConnector>: | |
49 void Create(const service_manager::Identity& remote_identity, | |
50 prefs::mojom::PrefStoreConnectorRequest request) override; | |
51 | |
52 // service_manager::InterfaceFactory<PrefStoreRegistry>: | |
53 void Create(const service_manager::Identity& remote_identity, | |
54 prefs::mojom::PrefStoreRegistryRequest request) override; | |
55 | |
56 // service_manager::Service: | |
57 void OnStart() override; | |
58 bool OnConnect(const service_manager::ServiceInfo& remote_info, | |
59 service_manager::InterfaceRegistry* registry) override; | |
60 | |
61 // Called when a PrefStore previously registered using |Register| disconnects. | |
62 void OnPrefStoreDisconnect(PrefValueStore::PrefStoreType type); | |
63 | |
64 // Have all the expected PrefStores connected? | |
65 bool AllConnected() const; | |
66 | |
67 // PrefStores that need to register before replying to any Connect calls. | |
68 PrefStoreTypes expected_pref_stores_; | |
69 | |
70 using PrefStorePtrs = | |
Sam McNally
2017/03/03 03:47:58
Types before methods.
tibell
2017/03/07 00:52:52
Done.
| |
71 std::unordered_map<PrefValueStore::PrefStoreType, mojom::PrefStorePtr>; | |
72 | |
73 // Registered pref stores. | |
74 PrefStorePtrs pref_store_ptrs_; | |
75 | |
76 mojo::BindingSet<mojom::PrefStoreConnector> connector_bindings_; | |
77 mojo::BindingSet<mojom::PrefStoreRegistry> registry_bindings_; | |
78 | |
79 // We hold on to the connection request callbacks until all expected | |
80 // PrefStores have registered. | |
81 std::vector<ConnectCallback> pending_callbacks_; | |
82 | |
83 DISALLOW_COPY_AND_ASSIGN(PrefStoreManagerImpl); | |
84 }; | |
85 | |
86 } // namespace prefs | |
87 | |
88 #endif // SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_MANAGER_IMPL_H_ | |
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