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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 COMPONENTS_SYNCABLE_PREFS_PREF_MODEL_ASSOCIATOR_H_ | 5 #ifndef COMPONENTS_SYNC_PREFERENCES_PREF_MODEL_ASSOCIATOR_H_ |
| 6 #define COMPONENTS_SYNCABLE_PREFS_PREF_MODEL_ASSOCIATOR_H_ | 6 #define COMPONENTS_SYNC_PREFERENCES_PREF_MODEL_ASSOCIATOR_H_ |
| 7 | 7 |
| 8 #include <map> | 8 #include <map> |
| 9 #include <memory> | 9 #include <memory> |
| 10 #include <set> | 10 #include <set> |
| 11 #include <string> | 11 #include <string> |
| 12 #include <vector> | 12 #include <vector> |
| 13 | 13 |
| 14 #include "base/callback.h" | 14 #include "base/callback.h" |
| 15 #include "base/compiler_specific.h" | 15 #include "base/compiler_specific.h" |
| 16 #include "base/containers/hash_tables.h" | 16 #include "base/containers/hash_tables.h" |
| 17 #include "base/macros.h" | 17 #include "base/macros.h" |
| 18 #include "base/observer_list.h" | 18 #include "base/observer_list.h" |
| 19 #include "base/threading/non_thread_safe.h" | 19 #include "base/threading/non_thread_safe.h" |
| 20 #include "components/sync/model/sync_data.h" | 20 #include "components/sync/model/sync_data.h" |
| 21 #include "components/sync/model/syncable_service.h" | 21 #include "components/sync/model/syncable_service.h" |
| 22 #include "components/syncable_prefs/synced_pref_observer.h" | 22 #include "components/sync_preferences/synced_pref_observer.h" |
| 23 | 23 |
| 24 namespace base { | 24 namespace base { |
| 25 class Value; | 25 class Value; |
| 26 } | 26 } |
| 27 | 27 |
| 28 namespace sync_pb { | 28 namespace sync_pb { |
| 29 class PreferenceSpecifics; | 29 class PreferenceSpecifics; |
| 30 } | 30 } |
| 31 | 31 |
| 32 namespace syncable_prefs { | 32 namespace sync_preferences { |
| 33 | 33 |
| 34 class PrefModelAssociatorClient; | 34 class PrefModelAssociatorClient; |
| 35 class PrefRegistrySyncable; | 35 class PrefRegistrySyncable; |
| 36 class PrefServiceSyncable; | 36 class PrefServiceSyncable; |
| 37 | 37 |
| 38 // Contains all preference sync related logic. | 38 // Contains all preference sync related logic. |
| 39 // TODO(sync): Merge this into PrefService once we separate the profile | 39 // TODO(sync): Merge this into PrefService once we separate the profile |
| 40 // PrefService from the local state PrefService. | 40 // PrefService from the local state PrefService. |
| 41 class PrefModelAssociator | 41 class PrefModelAssociator : public syncer::SyncableService, |
| 42 : public syncer::SyncableService, | 42 public base::NonThreadSafe { |
| 43 public base::NonThreadSafe { | |
| 44 public: | 43 public: |
| 45 // Constructs a PrefModelAssociator initializing the |client_| and |type_| | 44 // Constructs a PrefModelAssociator initializing the |client_| and |type_| |
| 46 // instance variable. The |client| is not owned by this object and the caller | 45 // instance variable. The |client| is not owned by this object and the caller |
| 47 // must ensure that it oulives the PrefModelAssociator. | 46 // must ensure that it oulives the PrefModelAssociator. |
| 48 PrefModelAssociator(const PrefModelAssociatorClient* client, | 47 PrefModelAssociator(const PrefModelAssociatorClient* client, |
| 49 syncer::ModelType type); | 48 syncer::ModelType type); |
| 50 ~PrefModelAssociator() override; | 49 ~PrefModelAssociator() override; |
| 51 | 50 |
| 52 // See description above field for details. | 51 // See description above field for details. |
| 53 bool models_associated() const { return models_associated_; } | 52 bool models_associated() const { return models_associated_; } |
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| 136 // with ours and append a new UPDATE SyncChange to |sync_changes|. If | 135 // with ours and append a new UPDATE SyncChange to |sync_changes|. If |
| 137 // sync_pref is not set, we append an ADD SyncChange to |sync_changes| with | 136 // sync_pref is not set, we append an ADD SyncChange to |sync_changes| with |
| 138 // the current preference data. | 137 // the current preference data. |
| 139 // Note: We do not modify the sync data for preferences that are either | 138 // Note: We do not modify the sync data for preferences that are either |
| 140 // controlled by policy (are not user modifiable) or have their default value | 139 // controlled by policy (are not user modifiable) or have their default value |
| 141 // (are not user controlled). | 140 // (are not user controlled). |
| 142 void InitPrefAndAssociate(const syncer::SyncData& sync_pref, | 141 void InitPrefAndAssociate(const syncer::SyncData& sync_pref, |
| 143 const std::string& pref_name, | 142 const std::string& pref_name, |
| 144 syncer::SyncChangeList* sync_changes); | 143 syncer::SyncChangeList* sync_changes); |
| 145 | 144 |
| 146 static base::Value* MergeListValues( | 145 static base::Value* MergeListValues(const base::Value& from_value, |
| 147 const base::Value& from_value, const base::Value& to_value); | 146 const base::Value& to_value); |
| 148 static base::Value* MergeDictionaryValues(const base::Value& from_value, | 147 static base::Value* MergeDictionaryValues(const base::Value& from_value, |
| 149 const base::Value& to_value); | 148 const base::Value& to_value); |
| 150 | 149 |
| 151 // Do we have an active association between the preferences and sync models? | 150 // Do we have an active association between the preferences and sync models? |
| 152 // Set when start syncing, reset in StopSyncing. While this is not set, we | 151 // Set when start syncing, reset in StopSyncing. While this is not set, we |
| 153 // ignore any local preference changes (when we start syncing we will look | 152 // ignore any local preference changes (when we start syncing we will look |
| 154 // up the most recent values anyways). | 153 // up the most recent values anyways). |
| 155 bool models_associated_; | 154 bool models_associated_; |
| 156 | 155 |
| 157 // Whether we're currently processing changes from the syncer. While this is | 156 // Whether we're currently processing changes from the syncer. While this is |
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| 197 void NotifySyncedPrefObservers(const std::string& path, bool from_sync) const; | 196 void NotifySyncedPrefObservers(const std::string& path, bool from_sync) const; |
| 198 | 197 |
| 199 SyncedPrefObserverMap synced_pref_observers_; | 198 SyncedPrefObserverMap synced_pref_observers_; |
| 200 const PrefModelAssociatorClient* client_; // Weak. | 199 const PrefModelAssociatorClient* client_; // Weak. |
| 201 | 200 |
| 202 std::vector<base::Closure> callback_list_; | 201 std::vector<base::Closure> callback_list_; |
| 203 | 202 |
| 204 DISALLOW_COPY_AND_ASSIGN(PrefModelAssociator); | 203 DISALLOW_COPY_AND_ASSIGN(PrefModelAssociator); |
| 205 }; | 204 }; |
| 206 | 205 |
| 207 } // namespace syncable_prefs | 206 } // namespace sync_preferences |
| 208 | 207 |
| 209 #endif // COMPONENTS_SYNCABLE_PREFS_PREF_MODEL_ASSOCIATOR_H_ | 208 #endif // COMPONENTS_SYNC_PREFERENCES_PREF_MODEL_ASSOCIATOR_H_ |
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