/*

 * Copyright (C) 2003 Apple Computer, Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#ifndef DeprecatedValueListImpl_h

#define DeprecatedValueListImpl_h

#include <wtf/RefPtr.h>

namespace WebCore {

class DeprecatedValueListImplNode;

class DeprecatedValueListImplIterator

{

public: 

    DeprecatedValueListImplIterator();

    bool operator==(const DeprecatedValueListImplIterator &other);

    bool operator!=(const DeprecatedValueListImplIterator &other);

    DeprecatedValueListImplNode *node();

    const DeprecatedValueListImplNode *node() const;

    DeprecatedValueListImplIterator& operator++();

    DeprecatedValueListImplIterator operator++(int);

    DeprecatedValueListImplIterator& operator--();

private:

    DeprecatedValueListImplIterator(const DeprecatedValueListImplNode *n);

    DeprecatedValueListImplNode *nodeImpl;

    friend class DeprecatedValueListImpl;

};

class DeprecatedValueListImpl 

{

public:

    DeprecatedValueListImpl(void (*deleteFunc)(DeprecatedValueListImplNode *), DeprecatedValueListImplNode *(*copyNode)(DeprecatedValueListImplNode *));

    ~DeprecatedValueListImpl();

    DeprecatedValueListImpl(const DeprecatedValueListImpl&);

    DeprecatedValueListImpl& operator=(const DeprecatedValueListImpl&);

    void clear();

    unsigned count() const;

    bool isEmpty() const;

    DeprecatedValueListImplIterator appendNode(DeprecatedValueListImplNode *node);

    DeprecatedValueListImplIterator prependNode(DeprecatedValueListImplNode *node);

    void removeEqualNodes(DeprecatedValueListImplNode *node, bool (*equalFunc)(const DeprecatedValueListImplNode *, const DeprecatedValueListImplNode *));

    unsigned containsEqualNodes(DeprecatedValueListImplNode *node, bool (*equalFunc)(const DeprecatedValueListImplNode *, const DeprecatedValueListImplNode *)) const;

    DeprecatedValueListImplIterator findEqualNode(DeprecatedValueListImplNode *node, bool (*equalFunc)(const DeprecatedValueListImplNode *, const DeprecatedValueListImplNode *)) const;

    DeprecatedValueListImplIterator insert(const DeprecatedValueListImplIterator &iterator, DeprecatedValueListImplNode* node);

    DeprecatedValueListImplIterator removeIterator(DeprecatedValueListImplIterator &iterator);

    DeprecatedValueListImplIterator fromLast();

    DeprecatedValueListImplNode *firstNode();

    DeprecatedValueListImplNode *lastNode();

    DeprecatedValueListImplNode *firstNode() const;

    DeprecatedValueListImplNode *lastNode() const;

    DeprecatedValueListImplIterator begin();

    DeprecatedValueListImplIterator end();

    DeprecatedValueListImplIterator begin() const;

    DeprecatedValueListImplIterator end() const;

    DeprecatedValueListImplIterator fromLast() const;

    DeprecatedValueListImplNode *nodeAt(unsigned index);

    DeprecatedValueListImplNode *nodeAt(unsigned index) const;

    bool isEqual(const DeprecatedValueListImpl &other, bool (*equalFunc)(const DeprecatedValueListImplNode *, const DeprecatedValueListImplNode *)) const;

private:

    void copyOnWrite();

    class Private;

    RefPtr<Private> d;

    friend class DeprecatedValueListImplNode;

};

class DeprecatedValueListImplNode

{

protected:

    DeprecatedValueListImplNode();

private:

    DeprecatedValueListImplNode *prev;

    DeprecatedValueListImplNode *next;

    friend class DeprecatedValueListImpl;

    friend class DeprecatedValueListImplIterator;

    friend class DeprecatedValueListImpl::Private;

};

inline DeprecatedValueListImplIterator::DeprecatedValueListImplIterator() : 

    nodeImpl(NULL)

{

}

inline bool DeprecatedValueListImplIterator::operator==(const DeprecatedValueListImplIterator &other)

{

    return nodeImpl == other.nodeImpl;

}

inline bool DeprecatedValueListImplIterator::operator!=(const DeprecatedValueListImplIterator &other)

{

    return nodeImpl != other.nodeImpl;

}

inline DeprecatedValueListImplNode *DeprecatedValueListImplIterator::node()

{

    return nodeImpl;

}

inline const DeprecatedValueListImplNode *DeprecatedValueListImplIterator::node() const

{

    return nodeImpl;

}

inline DeprecatedValueListImplIterator& DeprecatedValueListImplIterator::operator++()

{

    if (nodeImpl != NULL) {

        nodeImpl = nodeImpl->next;

    }

    return *this;

}

inline DeprecatedValueListImplIterator DeprecatedValueListImplIterator::operator++(int)

{

    DeprecatedValueListImplIterator tmp(*this);

    if (nodeImpl != NULL) {

        nodeImpl = nodeImpl->next;

    }

    return tmp;

}

inline DeprecatedValueListImplIterator& DeprecatedValueListImplIterator::operator--()

{

    if (nodeImpl != NULL) {

        nodeImpl = nodeImpl->prev;

    }

    return *this;

}

inline DeprecatedValueListImplIterator::DeprecatedValueListImplIterator(const DeprecatedValueListImplNode *n) :

    nodeImpl((DeprecatedValueListImplNode *)n)

{

}

inline DeprecatedValueListImplNode::DeprecatedValueListImplNode() : 

    prev(NULL), 

    next(NULL)

{

}

}

#endif