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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.
*
*/
#include "core/dom/NodeIteratorBase.h"
#include "bindings/core/v8/ExceptionState.h"
#include "core/dom/Node.h"
#include "core/dom/NodeFilter.h"
namespace blink {
NodeIteratorBase::NodeIteratorBase(void* childThis,
Node* rootNode,
unsigned whatToShow,
NodeFilter* nodeFilter)
: m_root(rootNode),
m_whatToShow(whatToShow),
m_filter(childThis, nodeFilter) {}
unsigned NodeIteratorBase::acceptNode(Node* node,
ExceptionState& exceptionState) const {
// The bit twiddling here is done to map DOM node types, which are given as
// integers from 1 through 14, to whatToShow bit masks.
if (!(((1 << (node->getNodeType() - 1)) & m_whatToShow)))
return NodeFilter::kFilterSkip;
if (!m_filter)
return NodeFilter::kFilterAccept;
return m_filter->acceptNode(node, exceptionState);
}
DEFINE_TRACE(NodeIteratorBase) {
visitor->trace(m_root);
visitor->trace(m_filter);
}
DEFINE_TRACE_WRAPPERS(NodeIteratorBase) {
visitor->traceWrappers(m_filter);
}
} // namespace blink
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