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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, 2007, 2012 Apple Inc. All rights reserved.
*
* 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 "core/css/CSSRule.h"
#include "core/css/CSSStyleSheet.h"
#include "core/css/StyleRule.h"
#include "core/css/StyleSheetContents.h"
#include "platform/NotImplemented.h"
namespace blink {
struct SameSizeAsCSSRule : public RefCountedWillBeGarbageCollectedFinalized<SameSizeAsCSSRule>, public ScriptWrappable {
virtual ~SameSizeAsCSSRule();
unsigned char bitfields;
void* pointerUnion;
};
static_assert(sizeof(CSSRule) == sizeof(SameSizeAsCSSRule), "CSSRule should stay small");
static_assert(StyleRuleBase::Viewport == static_cast<StyleRuleBase::Type>(CSSRule::VIEWPORT_RULE), "enums should match");
void CSSRule::setCSSText(const String&)
{
notImplemented();
}
const CSSParserContext& CSSRule::parserContext() const
{
CSSStyleSheet* styleSheet = parentStyleSheet();
return styleSheet ? styleSheet->contents()->parserContext() : strictCSSParserContext();
}
void CSSRule::trace(Visitor* visitor)
{
#if ENABLE(OILPAN)
// This makes the parent link strong, which is different from the
// pre-oilpan world, where the parent link is mysteriously zeroed under
// some circumstances.
if (m_parentIsRule)
visitor->trace(m_parentRule);
else
visitor->trace(m_parentStyleSheet);
#endif
}
} // namespace blink
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