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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_BROWSER_API_STORAGE_LOCAL_VALUE_STORE_CACHE_H_
#define EXTENSIONS_BROWSER_API_STORAGE_LOCAL_VALUE_STORE_CACHE_H_
#include <memory>
#include "base/compiler_specific.h"
#include "base/memory/scoped_refptr.h"
#include "extensions/browser/api/storage/settings_storage_quota_enforcer.h"
#include "extensions/browser/api/storage/value_store_cache.h"
#include "extensions/common/extension_id.h"
namespace value_store {
class ValueStoreFactory;
}
namespace extensions {
// ValueStoreCache for the LOCAL namespace. It owns a backend for apps and
// another for extensions. Each backend takes care of persistence.
class LocalValueStoreCache : public ValueStoreCache {
public:
explicit LocalValueStoreCache(
scoped_refptr<value_store::ValueStoreFactory> factory);
LocalValueStoreCache(const LocalValueStoreCache&) = delete;
LocalValueStoreCache& operator=(const LocalValueStoreCache&) = delete;
~LocalValueStoreCache() override;
// ValueStoreCache implementation:
void RunWithValueStoreForExtension(
StorageCallback callback,
scoped_refptr<const Extension> extension) override;
void DeleteStorageSoon(const ExtensionId& extension_id) override;
private:
using StorageMap =
std::map<std::string, std::unique_ptr<value_store::ValueStore>>;
value_store::ValueStore* GetStorage(const Extension* extension);
// The Factory to use for creating new ValueStores.
const scoped_refptr<value_store::ValueStoreFactory> storage_factory_;
// Quota limits (see SettingsStorageQuotaEnforcer).
const SettingsStorageQuotaEnforcer::Limits quota_;
// The collection of ValueStores for local storage.
StorageMap storage_map_;
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_API_STORAGE_LOCAL_VALUE_STORE_CACHE_H_
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