cef/libcef/browser/extensions/value_store/cef_value_store_factory.h

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2.2 KiB
C++

// Copyright 2017 The Chromium Embedded Framework Authors.
// Portions copyright 2016 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 CEF_LIBCEF_BROWSER_EXTENSIONS_VALUE_STORE_CEF_VALUE_STORE_FACTORY_H_
#define CEF_LIBCEF_BROWSER_EXTENSIONS_VALUE_STORE_CEF_VALUE_STORE_FACTORY_H_
#include <map>
#include <memory>
#include "base/files/file_path.h"
#include "components/value_store/value_store_factory.h"
namespace value_store {
class ValueStore;
// Based on TestValueStoreFactory. Will either open a database on disk (if path
// provided) returning a |LeveldbValueStore|. Otherwise a new |CefingValueStore|
// instance will be returned.
class CefValueStoreFactory : public ValueStoreFactory {
public:
CefValueStoreFactory();
explicit CefValueStoreFactory(const base::FilePath& db_path);
CefValueStoreFactory(const CefValueStoreFactory&) = delete;
CefValueStoreFactory& operator=(const CefValueStoreFactory&) = delete;
// ValueStoreFactory
std::unique_ptr<ValueStore> CreateValueStore(
const base::FilePath& directory,
const std::string& uma_client_name) override;
void DeleteValueStore(const base::FilePath& directory) override;
bool HasValueStore(const base::FilePath& directory) override;
// Return the last created |ValueStore|. Use with caution as this may return
// a dangling pointer since the creator now owns the ValueStore which can be
// deleted at any time.
ValueStore* LastCreatedStore() const;
// Return the previously created |ValueStore| in the given directory.
ValueStore* GetExisting(const base::FilePath& directory) const;
// Reset this class (as if just created).
void Reset();
private:
~CefValueStoreFactory() override;
std::unique_ptr<ValueStore> CreateStore();
base::FilePath db_path_;
ValueStore* last_created_store_ = nullptr;
// A mapping from directories to their ValueStore. None of these value
// stores are owned by this factory, so care must be taken when calling
// GetExisting.
std::map<base::FilePath, ValueStore*> value_store_map_;
};
} // namespace value_store
#endif // CEF_LIBCEF_BROWSER_EXTENSIONS_VALUE_STORE_CEF_VALUE_STORE_FACTORY_H_