1/**
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
4 * Copyright (C) 2002, 2005, 2006 Apple Computer, Inc.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB.  If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#include "config.h"
23#include "CSSRuleList.h"
24
25#include "CSSRule.h"
26#include "StyleList.h"
27
28namespace WebCore {
29
30CSSRuleList::CSSRuleList()
31{
32}
33
34CSSRuleList::CSSRuleList(StyleList* list, bool omitCharsetRules)
35{
36    m_list = list;
37    if (list && omitCharsetRules) {
38        m_list = 0;
39        unsigned len = list->length();
40        for (unsigned i = 0; i < len; ++i) {
41            StyleBase* style = list->item(i);
42            if (style->isRule() && !style->isCharsetRule())
43                append(static_cast<CSSRule*>(style));
44        }
45    }
46}
47
48CSSRuleList::~CSSRuleList()
49{
50}
51
52unsigned CSSRuleList::length() const
53{
54    return m_list ? m_list->length() : m_lstCSSRules.size();
55}
56
57CSSRule* CSSRuleList::item(unsigned index)
58{
59    if (m_list) {
60        StyleBase* rule = m_list->item(index);
61        ASSERT(!rule || rule->isRule());
62        return static_cast<CSSRule*>(rule);
63    }
64
65    if (index < m_lstCSSRules.size())
66        return m_lstCSSRules[index].get();
67    return 0;
68}
69
70void CSSRuleList::deleteRule(unsigned index)
71{
72    ASSERT(!m_list);
73
74    if (index >= m_lstCSSRules.size()) {
75        // FIXME: Should we throw an INDEX_SIZE_ERR exception here?
76        return;
77    }
78
79    m_lstCSSRules.remove(index);
80}
81
82void CSSRuleList::append(CSSRule* rule)
83{
84    ASSERT(!m_list);
85    if (!rule) {
86        // FIXME: Should we throw an exception?
87        return;
88    }
89
90    m_lstCSSRules.append(rule);
91}
92
93unsigned CSSRuleList::insertRule(CSSRule* rule, unsigned index)
94{
95    ASSERT(!m_list);
96    if (!rule) {
97        // FIXME: Should we throw an exception?
98        return 0;
99    }
100
101    if (index > m_lstCSSRules.size()) {
102        // FIXME: Should we throw an INDEX_SIZE_ERR exception here?
103        return 0;
104    }
105
106    m_lstCSSRules.insert(index, rule);
107    return index;
108}
109
110} // namespace WebCore
111