1 /*
2 * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22 #include "config.h"
23 #include "ContentData.h"
24
25 #include "StyleImage.h"
26 #include <wtf/text/StringImpl.h>
27
28 namespace WebCore {
29
clear()30 void ContentData::clear()
31 {
32 deleteContent();
33
34 // Delete the singly-linked list without recursing.
35 for (OwnPtr<ContentData> next = m_next.release(); next; next = next->m_next.release()) { }
36 }
37
38 // FIXME: Why isn't this just operator==?
39 // FIXME: This is not a good name for a boolean-returning function.
dataEquivalent(const ContentData & other) const40 bool ContentData::dataEquivalent(const ContentData& other) const
41 {
42 if (type() != other.type())
43 return false;
44
45 switch (type()) {
46 case CONTENT_NONE:
47 return true;
48 case CONTENT_TEXT:
49 return equal(text(), other.text());
50 case CONTENT_OBJECT:
51 return StyleImage::imagesEquivalent(image(), other.image());
52 case CONTENT_COUNTER:
53 return *counter() == *other.counter();
54 case CONTENT_QUOTE:
55 return quote() == other.quote();
56 }
57
58 ASSERT_NOT_REACHED();
59 return false;
60 }
61
deleteContent()62 void ContentData::deleteContent()
63 {
64 switch (m_type) {
65 case CONTENT_NONE:
66 break;
67 case CONTENT_OBJECT:
68 m_content.m_image->deref();
69 break;
70 case CONTENT_TEXT:
71 m_content.m_text->deref();
72 break;
73 case CONTENT_COUNTER:
74 delete m_content.m_counter;
75 break;
76 case CONTENT_QUOTE:
77 break;
78 }
79
80 m_type = CONTENT_NONE;
81 }
82
83 } // namespace WebCore
84