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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* (C) 2002-2003 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2002-2025 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 "CSSPageRule.h"
#include "CSSParser.h"
#include "CSSSelector.h"
#include "CSSSerializationContext.h"
#include "CSSStyleSheet.h"
#include "CommonAtomStrings.h"
#include "Document.h"
#include "PropertySetCSSStyleDeclaration.h"
#include "StyleProperties.h"
#include "StyleRule.h"
#include <wtf/text/MakeString.h>
namespace WebCore {
CSSPageRule::CSSPageRule(StyleRulePage& pageRule, CSSStyleSheet* parent)
: CSSGroupingRule(pageRule, parent)
, m_pageRule(pageRule)
{
}
CSSPageRule::~CSSPageRule()
{
if (m_propertiesCSSOMWrapper)
m_propertiesCSSOMWrapper->clearParentRule();
}
CSSStyleDeclaration& CSSPageRule::style()
{
if (!m_propertiesCSSOMWrapper)
m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_pageRule->mutableProperties(), *this);
return *m_propertiesCSSOMWrapper;
}
String CSSPageRule::selectorText() const
{
if (auto* selector = m_pageRule->selector()) {
if (!selector->selectorText().isEmpty())
return selector->selectorText();
}
return ""_s;
}
void CSSPageRule::setSelectorText(const String& selectorText)
{
CSSParser parser(parserContext());
auto* sheet = parentStyleSheet();
auto selectorList = parser.parseSelectorList(selectorText, sheet ? &sheet->contents() : nullptr);
if (!selectorList)
return;
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_pageRule->wrapperAdoptSelectorList(WTFMove(*selectorList));
}
String CSSPageRule::cssText() const
{
auto selector = selectorText();
auto optionalSpace = selector.isEmpty() ? ""_s : " "_s;
if (auto declarations = m_pageRule->properties().asText(CSS::defaultSerializationContext()); !declarations.isEmpty())
return makeString("@page"_s, optionalSpace, selector, " { "_s, declarations, " }"_s);
return makeString("@page"_s, optionalSpace, selector, " { }"_s);
}
void CSSPageRule::reattach(StyleRuleBase& rule)
{
m_pageRule = downcast<StyleRulePage>(rule);
if (m_propertiesCSSOMWrapper)
m_propertiesCSSOMWrapper->reattach(m_pageRule.get().mutableProperties());
}
} // namespace WebCore
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