1 /*
2 * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2007, 2008 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 "CounterContent.h"
26 #include "StringImpl.h"
27 #include "StyleImage.h"
28
29 namespace WebCore {
30
clear()31 void ContentData::clear()
32 {
33 deleteContent();
34
35 ContentData* n = m_next;
36 m_next = 0;
37
38 // Reverse the list so we can delete without recursing.
39 ContentData* last = 0;
40 ContentData* c;
41 while ((c = n)) {
42 n = c->m_next;
43 c->m_next = last;
44 last = c;
45 }
46 for (c = last; c; c = n) {
47 n = c->m_next;
48 c->m_next = 0;
49 delete c;
50 }
51 }
52
dataEquivalent(const ContentData & other) const53 bool ContentData::dataEquivalent(const ContentData& other) const
54 {
55 if (type() != other.type())
56 return false;
57
58 switch (type()) {
59 case CONTENT_NONE:
60 return true;
61 break;
62 case CONTENT_TEXT:
63 return equal(text(), other.text());
64 break;
65 case CONTENT_OBJECT:
66 return StyleImage::imagesEquivalent(image(), other.image());
67 break;
68 case CONTENT_COUNTER:
69 return *counter() == *other.counter();
70 break;
71 }
72
73 ASSERT_NOT_REACHED();
74 return false;
75 }
76
deleteContent()77 void ContentData::deleteContent()
78 {
79 switch (m_type) {
80 case CONTENT_NONE:
81 break;
82 case CONTENT_OBJECT:
83 m_content.m_image->deref();
84 break;
85 case CONTENT_TEXT:
86 m_content.m_text->deref();
87 break;
88 case CONTENT_COUNTER:
89 delete m_content.m_counter;
90 break;
91 }
92
93 m_type = CONTENT_NONE;
94 }
95
96 } // namespace WebCore
97