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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef COMPONENTS_PREFS_VALUE_MAP_PREF_STORE_H_
- #define COMPONENTS_PREFS_VALUE_MAP_PREF_STORE_H_
- #include <stdint.h>
- #include <map>
- #include <string>
- #include "base/observer_list.h"
- #include "base/values.h"
- #include "components/prefs/pref_value_map.h"
- #include "components/prefs/prefs_export.h"
- #include "components/prefs/writeable_pref_store.h"
- // A basic PrefStore implementation that uses a simple name-value map for
- // storing the preference values.
- class COMPONENTS_PREFS_EXPORT ValueMapPrefStore : public WriteablePrefStore {
- public:
- ValueMapPrefStore();
- ValueMapPrefStore(const ValueMapPrefStore&) = delete;
- ValueMapPrefStore& operator=(const ValueMapPrefStore&) = delete;
- // PrefStore overrides:
- bool GetValue(const std::string& key,
- const base::Value** value) const override;
- base::Value::Dict GetValues() const override;
- void AddObserver(PrefStore::Observer* observer) override;
- void RemoveObserver(PrefStore::Observer* observer) override;
- bool HasObservers() const override;
- // WriteablePrefStore overrides:
- void SetValue(const std::string& key,
- std::unique_ptr<base::Value> value,
- uint32_t flags) override;
- void RemoveValue(const std::string& key, uint32_t flags) override;
- bool GetMutableValue(const std::string& key, base::Value** value) override;
- void ReportValueChanged(const std::string& key, uint32_t flags) override;
- void SetValueSilently(const std::string& key,
- std::unique_ptr<base::Value> value,
- uint32_t flags) override;
- void RemoveValuesByPrefixSilently(const std::string& prefix) override;
- protected:
- ~ValueMapPrefStore() override;
- // Notify observers about the initialization completed event.
- void NotifyInitializationCompleted();
- private:
- PrefValueMap prefs_;
- base::ObserverList<PrefStore::Observer, true>::Unchecked observers_;
- };
- #endif // COMPONENTS_PREFS_VALUE_MAP_PREF_STORE_H_
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