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 "Traversal.h"
27
28 #include "Node.h"
29 #include "NodeFilter.h"
30
31 namespace WebCore {
32
Traversal(PassRefPtr<Node> rootNode,unsigned whatToShow,PassRefPtr<NodeFilter> nodeFilter,bool expandEntityReferences)33 Traversal::Traversal(PassRefPtr<Node> rootNode, unsigned whatToShow, PassRefPtr<NodeFilter> nodeFilter, bool expandEntityReferences)
34 : m_root(rootNode)
35 , m_whatToShow(whatToShow)
36 , m_filter(nodeFilter)
37 , m_expandEntityReferences(expandEntityReferences)
38 {
39 }
40
acceptNode(ScriptState * state,Node * node) const41 short Traversal::acceptNode(ScriptState* state, Node* node) const
42 {
43 // FIXME: To handle XML properly we would have to check m_expandEntityReferences.
44
45 // The bit twiddling here is done to map DOM node types, which are given as integers from
46 // 1 through 12, to whatToShow bit masks.
47 if (!(((1 << (node->nodeType() - 1)) & m_whatToShow)))
48 return NodeFilter::FILTER_SKIP;
49 if (!m_filter)
50 return NodeFilter::FILTER_ACCEPT;
51 return m_filter->acceptNode(state, node);
52 }
53
54 } // namespace WebCore
55