UserData.h

// Copyright (c) 2018-2019 Kiwano - Nomango
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
 
#pragma once
#include <kiwano/core/Common.h>
 
namespace kiwano
{
class KGE_API UserData final : public Singleton<UserData>
{
    friend Singleton<UserData>;
 
public:
    using DataMap = UnorderedMap<String, Any>;
 
    using DataPair = Pair<const String, Any>;
 
    Any Get(StringView key, const Any& default_data = Any()) const;
 
    void Set(StringView key, const Any& data);
 
    void Set(const DataPair& pair);
 
    void Set(const std::initializer_list<DataPair>& list);
 
    void Set(const DataMap& map);
 
    bool Contains(StringView key) const;
 
    const DataMap& GetDataMap() const;
 
    void Clear();
 
private:
    UserData()                           = default;
    UserData(const UserData&)            = default;
    UserData& operator=(const UserData&) = default;
 
private:
    DataMap data_;
};
}  // namespace kiwano