1 /* 2 * (C) 1999-2003 Lars Knoll (knoll (at) kde.org) 3 * (C) 2002-2003 Dirk Mueller (mueller (at) 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/CSSSelector.h" 26 #include "core/css/CSSStyleSheet.h" 27 #include "core/css/PropertySetCSSStyleDeclaration.h" 28 #include "core/css/StylePropertySet.h" 29 #include "core/css/StyleRule.h" 30 #include "core/css/parser/CSSParser.h" 31 #include "wtf/text/StringBuilder.h" 32 33 namespace blink { 34 35 CSSPageRule::CSSPageRule(StyleRulePage* pageRule, CSSStyleSheet* parent) 36 : CSSRule(parent) 37 , m_pageRule(pageRule) 38 { 39 } 40 41 CSSPageRule::~CSSPageRule() 42 { 43 #if !ENABLE(OILPAN) 44 if (m_propertiesCSSOMWrapper) 45 m_propertiesCSSOMWrapper->clearParentRule(); 46 #endif 47 } 48 49 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 56 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 71 void CSSPageRule::setSelectorText(const String& selectorText) 72 { 73 CSSParserContext context(parserContext(), 0); 74 CSSParser 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 85 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 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 } 105 106 void CSSPageRule::trace(Visitor* visitor) 107 { 108 visitor->trace(m_pageRule); 109 visitor->trace(m_propertiesCSSOMWrapper); 110 CSSRule::trace(visitor); 111 } 112 113 } // namespace blink 114