/** * This file is part of the DOM implementation for KDE. * * (C) 1999-2003 Lars Knoll (knoll@kde.org) * (C) 2002-2003 Dirk Mueller (mueller@kde.org) * Copyright (C) 2002, 2005, 2006 Apple Computer, Inc. * Copyright (C) 2006 Samuel Weinig (sam@webkit.org) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "config.h" #include "CSSMediaRule.h" #include "CSSParser.h" #include "CSSRuleList.h" #include "ExceptionCode.h" #include "MediaList.h" #include "StyleSheet.h" namespace WebCore { CSSMediaRule::CSSMediaRule(StyleBase* parent, MediaList* mediaList, CSSRuleList* ruleList) : CSSRule(parent) , m_lstMedia(mediaList) , m_lstCSSRules(ruleList) { } CSSMediaRule::CSSMediaRule(StyleBase* parent) : CSSRule(parent) , m_lstMedia(0) , m_lstCSSRules(new CSSRuleList()) { } CSSMediaRule::CSSMediaRule(StyleBase* parent, const String &media) : CSSRule(parent) , m_lstMedia(new MediaList(this, media)) , m_lstCSSRules(new CSSRuleList()) { } CSSMediaRule::~CSSMediaRule() { if (m_lstMedia) m_lstMedia->setParent(0); int length = m_lstCSSRules->length(); for (int i = 0; i < length; i++) m_lstCSSRules->item(i)->setParent(0); } unsigned CSSMediaRule::append(CSSRule* rule) { if (!rule) return 0; rule->setParent(this); return m_lstCSSRules->insertRule(rule, m_lstCSSRules->length()); } unsigned CSSMediaRule::insertRule(const String& rule, unsigned index, ExceptionCode& ec) { if (index > m_lstCSSRules->length()) { // INDEX_SIZE_ERR: Raised if the specified index is not a valid insertion point. ec = INDEX_SIZE_ERR; return 0; } CSSParser p(useStrictParsing()); RefPtr newRule = p.parseRule(parentStyleSheet(), rule); if (!newRule) { // SYNTAX_ERR: Raised if the specified rule has a syntax error and is unparsable. ec = SYNTAX_ERR; return 0; } if (newRule->isImportRule()) { // FIXME: an HIERARCHY_REQUEST_ERR should also be thrown for a @charset or a nested // @media rule. They are currently not getting parsed, resulting in a SYNTAX_ERR // to get raised above. // HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at the specified // index, e.g., if an @import rule is inserted after a standard rule set or other // at-rule. ec = HIERARCHY_REQUEST_ERR; return 0; } newRule->setParent(this); unsigned returnedIndex = m_lstCSSRules->insertRule(newRule.get(), index); // stylesheet() can only return 0 for computed style declarations. stylesheet()->styleSheetChanged(); return returnedIndex; } void CSSMediaRule::deleteRule(unsigned index, ExceptionCode& ec) { if (index >= m_lstCSSRules->length()) { // INDEX_SIZE_ERR: Raised if the specified index does not correspond to a // rule in the media rule list. ec = INDEX_SIZE_ERR; return; } m_lstCSSRules->deleteRule(index); // stylesheet() can only return 0 for computed style declarations. stylesheet()->styleSheetChanged(); } String CSSMediaRule::cssText() const { String result = "@media "; if (m_lstMedia) { result += m_lstMedia->mediaText(); result += " "; } result += "{ \n"; if (m_lstCSSRules) { unsigned len = m_lstCSSRules->length(); for (unsigned i = 0; i < len; i++) { result += " "; result += m_lstCSSRules->item(i)->cssText(); result += "\n"; } } result += "}"; return result; } } // namespace WebCore