1 /*
2 * Copyright (C) 2006, 2008, 2009 Apple Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21 #include "JSNodeIterator.h"
22
23 #include "JSNode.h"
24 #include "Node.h"
25 #include "NodeFilter.h"
26 #include "NodeIterator.h"
27
28 using namespace JSC;
29
30 namespace WebCore {
31
markChildren(MarkStack & markStack)32 void JSNodeIterator::markChildren(MarkStack& markStack)
33 {
34 Base::markChildren(markStack);
35
36 if (NodeFilter* filter = m_impl->filter())
37 filter->markAggregate(markStack);
38 }
39
nextNode(ExecState * exec,const ArgList &)40 JSValue JSNodeIterator::nextNode(ExecState* exec, const ArgList&)
41 {
42 ExceptionCode ec = 0;
43 RefPtr<Node> node = impl()->nextNode(exec, ec);
44 if (ec) {
45 setDOMException(exec, ec);
46 return jsUndefined();
47 }
48
49 if (exec->hadException())
50 return jsUndefined();
51
52 return toJS(exec, node.get());
53 }
54
previousNode(ExecState * exec,const ArgList &)55 JSValue JSNodeIterator::previousNode(ExecState* exec, const ArgList&)
56 {
57 ExceptionCode ec = 0;
58 RefPtr<Node> node = impl()->previousNode(exec, ec);
59 if (ec) {
60 setDOMException(exec, ec);
61 return jsUndefined();
62 }
63
64 if (exec->hadException())
65 return jsUndefined();
66
67 return toJS(exec, node.get());
68 }
69
70 }
71