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, 2008, 2012 Apple Inc. All rights reserved.
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 "core/css/CSSPageRule.h"
24
25 #include "core/css/parser/BisonCSSParser.h"
26 #include "core/css/CSSSelector.h"
27 #include "core/css/CSSStyleSheet.h"
28 #include "core/css/PropertySetCSSStyleDeclaration.h"
29 #include "core/css/StylePropertySet.h"
30 #include "core/css/StyleRule.h"
31 #include "wtf/text/StringBuilder.h"
32
33 namespace WebCore {
34
CSSPageRule(StyleRulePage * pageRule,CSSStyleSheet * parent)35 CSSPageRule::CSSPageRule(StyleRulePage* pageRule, CSSStyleSheet* parent)
36 : CSSRule(parent)
37 , m_pageRule(pageRule)
38 {
39 }
40
~CSSPageRule()41 CSSPageRule::~CSSPageRule()
42 {
43 #if !ENABLE(OILPAN)
44 if (m_propertiesCSSOMWrapper)
45 m_propertiesCSSOMWrapper->clearParentRule();
46 #endif
47 }
48
style() const49 CSSStyleDeclaration* CSSPageRule::style() const
50 {
51 if (!m_propertiesCSSOMWrapper)
52 m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_pageRule->mutableProperties(), const_cast<CSSPageRule*>(this));
53 return m_propertiesCSSOMWrapper.get();
54 }
55
selectorText() const56 String CSSPageRule::selectorText() const
57 {
58 StringBuilder text;
59 text.appendLiteral("@page");
60 const CSSSelector* selector = m_pageRule->selector();
61 if (selector) {
62 String pageSpecification = selector->selectorText();
63 if (!pageSpecification.isEmpty() && pageSpecification != starAtom) {
64 text.append(' ');
65 text.append(pageSpecification);
66 }
67 }
68 return text.toString();
69 }
70
setSelectorText(const String & selectorText)71 void CSSPageRule::setSelectorText(const String& selectorText)
72 {
73 CSSParserContext context(parserContext(), 0);
74 BisonCSSParser parser(context);
75 CSSSelectorList selectorList;
76 parser.parseSelector(selectorText, selectorList);
77 if (!selectorList.isValid())
78 return;
79
80 CSSStyleSheet::RuleMutationScope mutationScope(this);
81
82 m_pageRule->wrapperAdoptSelectorList(selectorList);
83 }
84
cssText() const85 String CSSPageRule::cssText() const
86 {
87 StringBuilder result;
88 result.append(selectorText());
89 result.appendLiteral(" { ");
90 String decls = m_pageRule->properties().asText();
91 result.append(decls);
92 if (!decls.isEmpty())
93 result.append(' ');
94 result.append('}');
95 return result.toString();
96 }
97
reattach(StyleRuleBase * rule)98 void CSSPageRule::reattach(StyleRuleBase* rule)
99 {
100 ASSERT(rule);
101 m_pageRule = toStyleRulePage(rule);
102 if (m_propertiesCSSOMWrapper)
103 m_propertiesCSSOMWrapper->reattach(m_pageRule->mutableProperties());
104 }
105
trace(Visitor * visitor)106 void CSSPageRule::trace(Visitor* visitor)
107 {
108 visitor->trace(m_pageRule);
109 visitor->trace(m_propertiesCSSOMWrapper);
110 CSSRule::trace(visitor);
111 }
112
113 } // namespace WebCore
114