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, 2012 Apple Computer, Inc. 5 * Copyright (C) 2006 Samuel Weinig (sam@webkit.org) 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23#include "config.h" 24#include "core/css/CSSMediaRule.h" 25 26#include "core/css/StyleRule.h" 27#include "wtf/text/StringBuilder.h" 28 29namespace blink { 30 31CSSMediaRule::CSSMediaRule(StyleRuleMedia* mediaRule, CSSStyleSheet* parent) 32 : CSSGroupingRule(mediaRule, parent) 33{ 34} 35 36CSSMediaRule::~CSSMediaRule() 37{ 38#if !ENABLE(OILPAN) 39 if (m_mediaCSSOMWrapper) 40 m_mediaCSSOMWrapper->clearParentRule(); 41#endif 42} 43 44MediaQuerySet* CSSMediaRule::mediaQueries() const 45{ 46 return toStyleRuleMedia(m_groupRule.get())->mediaQueries(); 47} 48 49String CSSMediaRule::cssText() const 50{ 51 StringBuilder result; 52 result.appendLiteral("@media "); 53 if (mediaQueries()) { 54 result.append(mediaQueries()->mediaText()); 55 result.append(' '); 56 } 57 result.appendLiteral("{ \n"); 58 appendCSSTextForItems(result); 59 result.append('}'); 60 return result.toString(); 61} 62 63MediaList* CSSMediaRule::media() const 64{ 65 if (!mediaQueries()) 66 return 0; 67 if (!m_mediaCSSOMWrapper) 68 m_mediaCSSOMWrapper = MediaList::create(mediaQueries(), const_cast<CSSMediaRule*>(this)); 69 return m_mediaCSSOMWrapper.get(); 70} 71 72void CSSMediaRule::reattach(StyleRuleBase* rule) 73{ 74 CSSGroupingRule::reattach(rule); 75 if (m_mediaCSSOMWrapper && mediaQueries()) 76 m_mediaCSSOMWrapper->reattach(mediaQueries()); 77} 78 79void CSSMediaRule::trace(Visitor* visitor) 80{ 81 visitor->trace(m_mediaCSSOMWrapper); 82 CSSGroupingRule::trace(visitor); 83} 84} // namespace blink 85