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/*
* Copyright (C) 2018 Apple 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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.
*/
#pragma once
#include "LayoutIterator.h"
namespace WebCore {
namespace Layout {
template <typename T>
class LayoutChildIterator : public LayoutIterator<T> {
public:
LayoutChildIterator(const ElementBox& parent);
LayoutChildIterator(const ElementBox& parent, const T* current);
LayoutChildIterator& operator++();
};
template <typename T>
class LayoutChildIteratorAdapter {
public:
LayoutChildIteratorAdapter(const ElementBox& parent);
LayoutChildIterator<T> begin() const;
LayoutChildIterator<T> end() const;
const T* first() const;
const T* last() const;
private:
const ElementBox& m_parent;
};
template <typename T> LayoutChildIteratorAdapter<T> childrenOfType(const ElementBox&);
// LayoutChildIterator
template <typename T>
inline LayoutChildIterator<T>::LayoutChildIterator(const ElementBox& parent)
: LayoutIterator<T>(&parent)
{
}
template <typename T>
inline LayoutChildIterator<T>::LayoutChildIterator(const ElementBox& parent, const T* current)
: LayoutIterator<T>(&parent, current)
{
}
template <typename T>
inline LayoutChildIterator<T>& LayoutChildIterator<T>::operator++()
{
return static_cast<LayoutChildIterator<T>&>(LayoutIterator<T>::traverseNextSibling());
}
// LayoutChildIteratorAdapter
template <typename T>
inline LayoutChildIteratorAdapter<T>::LayoutChildIteratorAdapter(const ElementBox& parent)
: m_parent(parent)
{
}
template <typename T>
inline LayoutChildIterator<T> LayoutChildIteratorAdapter<T>::begin() const
{
return LayoutChildIterator<T>(m_parent, Traversal::firstChild<T>(m_parent));
}
template <typename T>
inline LayoutChildIterator<T> LayoutChildIteratorAdapter<T>::end() const
{
return LayoutChildIterator<T>(m_parent);
}
template <typename T>
inline const T* LayoutChildIteratorAdapter<T>::first() const
{
return Traversal::firstChild<T>(m_parent);
}
template <typename T>
inline LayoutChildIteratorAdapter<T> childrenOfType(const ElementBox& parent)
{
return LayoutChildIteratorAdapter<T>(parent);
}
}
}
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