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/**
* (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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "CSSMediaRule.h"
#include "CSSParser.h"
#include "ExceptionCode.h"
namespace WebCore {
CSSMediaRule::CSSMediaRule(CSSStyleSheet* parent, PassRefPtr<MediaList> media, PassRefPtr<CSSRuleList> rules)
: CSSRule(parent, CSSRule::MEDIA_RULE)
, m_lstMedia(media)
, m_lstCSSRules(rules)
{
m_lstMedia->setParentStyleSheet(parent);
int length = m_lstCSSRules->length();
for (int i = 0; i < length; i++)
m_lstCSSRules->item(i)->setParentRule(this);
}
CSSMediaRule::~CSSMediaRule()
{
if (m_lstMedia)
m_lstMedia->setParentStyleSheet(0);
int length = m_lstCSSRules->length();
for (int i = 0; i < length; i++)
m_lstCSSRules->item(i)->setParentRule(0);
}
unsigned CSSMediaRule::append(CSSRule* rule)
{
if (!rule)
return 0;
rule->setParentRule(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<CSSRule> 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->setParentRule(this);
unsigned returnedIndex = m_lstCSSRules->insertRule(newRule.get(), index);
if (CSSStyleSheet* styleSheet = parentStyleSheet())
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->item(index)->setParentRule(0);
m_lstCSSRules->deleteRule(index);
if (CSSStyleSheet* styleSheet = parentStyleSheet())
styleSheet->styleSheetChanged();
}
String CSSMediaRule::cssText() const
{
String result = "@media ";
if (m_lstMedia) {
result += m_lstMedia->mediaText();
result += " ";
}
result += "{ \n";
if (m_lstCSSRules)
result += m_lstCSSRules->rulesText();
result += "}";
return result;
}
} // namespace WebCore
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