WebNodeCollection.cpp revision d0825bca7fe65beaee391d30da42e937db621564 
1/*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "WebNodeCollection.h"
33
34#include "HTMLCollection.h"
35#include "Node.h"
36#include <wtf/PassRefPtr.h>
37
38#include "WebNode.h"
39
40using namespace WebCore;
41
42namespace WebKit {
43
44void WebNodeCollection::reset()
45{
46    assign(0);
47}
48
49void WebNodeCollection::assign(const WebNodeCollection& other)
50{
51    HTMLCollection* p = const_cast<HTMLCollection*>(other.m_private);
52    if (p)
53        p->ref();
54    assign(p);
55}
56
57WebNodeCollection::WebNodeCollection(const PassRefPtr<HTMLCollection>& col)
58    : m_private(static_cast<HTMLCollection*>(col.releaseRef()))
59{
60}
61
62void WebNodeCollection::assign(HTMLCollection* p)
63{
64    // p is already ref'd for us by the caller
65    if (m_private)
66        m_private->deref();
67    m_private = p;
68}
69
70unsigned WebNodeCollection::length() const
71{
72    return m_private->length();
73}
74
75WebNode WebNodeCollection::nextItem() const
76{
77    return WebNode(m_private->nextItem());
78}
79
80WebNode WebNodeCollection::firstItem() const
81{
82    return WebNode(m_private->firstItem());
83}
84
85} // namespace WebKit
86