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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2004, 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#pragma once
#include "ExceptionOr.h"
#include "Node.h"
#include "NodeFilter.h"
#include <wtf/RefPtr.h>
namespace WebCore {
class NodeIteratorBase {
public:
Node& root() { return m_root.get(); }
const Node& root() const { return m_root.get(); }
Ref<Node> protectedRoot() const { return m_root; }
unsigned whatToShow() const { return m_whatToShow; }
NodeFilter* filter() const { return m_filter.get(); }
protected:
NodeIteratorBase(Node&, unsigned whatToShow, RefPtr<NodeFilter>&&);
ExceptionOr<unsigned short> acceptNode(Node& node)
{
// https://dom.spec.whatwg.org/#concept-node-filter
if (!m_filter)
return matchesWhatToShow(node) ? NodeFilter::FILTER_ACCEPT : NodeFilter::FILTER_SKIP;
return acceptNodeSlowCase(node);
}
bool matchesWhatToShow(const Node& node) const
{
unsigned nodeMask = 1 << (node.nodeType() - 1);
return nodeMask & m_whatToShow;
}
private:
ExceptionOr<unsigned short> acceptNodeSlowCase(Node&);
Ref<Node> m_root;
RefPtr<NodeFilter> m_filter;
unsigned m_whatToShow;
bool m_isActive { false };
};
} // namespace WebCore
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