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| 1 /* |
| 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| 3 * Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no) |
| 4 * Copyright (C) 2001 Peter Kelly (pmk@post.com) |
| 5 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) |
| 6 * Copyright (C) 2004, 2008 Apple Inc. All rights reserved. |
| 7 * |
| 8 * This library is free software; you can redistribute it and/or |
| 9 * modify it under the terms of the GNU Library General Public |
| 10 * License as published by the Free Software Foundation; either |
| 11 * version 2 of the License, or (at your option) any later version. |
| 12 * |
| 13 * This library is distributed in the hope that it will be useful, |
| 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 * Library General Public License for more details. |
| 17 * |
| 18 * You should have received a copy of the GNU Library General Public License |
| 19 * along with this library; see the file COPYING.LIB. If not, write to |
| 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 21 * Boston, MA 02110-1301, USA. |
| 22 * |
| 23 */ |
| 24 |
| 25 #include "config.h" |
| 26 #include "core/dom/Traversal.h" |
| 27 |
| 28 #include "core/dom/Node.h" |
| 29 #include "core/dom/NodeFilter.h" |
| 30 |
| 31 namespace WebCore { |
| 32 |
| 33 Traversal::Traversal(PassRefPtr<Node> rootNode, unsigned whatToShow, PassRefPtr<
NodeFilter> nodeFilter) |
| 34 : m_root(rootNode) |
| 35 , m_whatToShow(whatToShow) |
| 36 , m_filter(nodeFilter) |
| 37 { |
| 38 } |
| 39 |
| 40 short Traversal::acceptNode(ScriptState* state, Node* node) const |
| 41 { |
| 42 // The bit twiddling here is done to map DOM node types, which are given as
integers from |
| 43 // 1 through 14, to whatToShow bit masks. |
| 44 if (!(((1 << (node->nodeType() - 1)) & m_whatToShow))) |
| 45 return NodeFilter::FILTER_SKIP; |
| 46 if (!m_filter) |
| 47 return NodeFilter::FILTER_ACCEPT; |
| 48 return m_filter->acceptNode(state, node); |
| 49 } |
| 50 |
| 51 } // namespace WebCore |
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