/*
 * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */
#ifndef PACKAGE_DIRECTORY_H
#define PACKAGE_DIRECTORY_H


#include <util/DoublyLinkedList.h>

#include "PackageNode.h"


class PackageDirectory final : public PackageNode,
        public DoublyLinkedListLinkImpl<PackageDirectory> {
public:
        static  void*                           operator new(size_t size);
        static  void                            operator delete(void* block);

                                                                PackageDirectory(Package* package, mode_t mode);
        virtual                                         ~PackageDirectory();

                        void                            AddChild(PackageNode* node);
                        void                            RemoveChild(PackageNode* node);

        inline  PackageNode*            FirstChild() const;
        inline  PackageNode*            NextChild(PackageNode* node) const;

                        const PackageNodeList& Children() const
                                                                        { return fChildren; }

                        bool                            HasPrecedenceOver(const PackageDirectory* other)
                                                                        const;

private:
                        PackageNodeList         fChildren;
};


PackageNode*
PackageDirectory::FirstChild() const
{
        return fChildren.First();
}


PackageNode*
PackageDirectory::NextChild(PackageNode* node) const
{
        return fChildren.GetNext(node);
}


typedef DoublyLinkedList<PackageDirectory> PackageDirectoryList;


#endif  // PACKAGE_DIRECTORY_H