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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, 2008, 2009, 2010, 2012, 2013 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 "CSSImportRule.h"
#include "CSSLayerBlockRule.h"
#include "CSSMarkup.h"
#include "CSSSerializationContext.h"
#include "CSSStyleSheet.h"
#include "CachedCSSStyleSheet.h"
#include "MediaList.h"
#include "MediaQueryParser.h"
#include "StyleRuleImport.h"
#include "StyleSheetContents.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
CSSImportRule::CSSImportRule(StyleRuleImport& importRule, CSSStyleSheet* parent)
: CSSRule(parent)
, m_importRule(importRule)
{
}
CSSImportRule::~CSSImportRule()
{
if (m_styleSheetCSSOMWrapper)
m_styleSheetCSSOMWrapper->clearOwnerRule();
if (m_mediaCSSOMWrapper)
m_mediaCSSOMWrapper->detachFromParent();
}
String CSSImportRule::href() const
{
return m_importRule.get().href();
}
MediaList& CSSImportRule::media() const
{
if (!m_mediaCSSOMWrapper)
m_mediaCSSOMWrapper = MediaList::create(const_cast<CSSImportRule*>(this));
return *m_mediaCSSOMWrapper;
}
String CSSImportRule::layerName() const
{
auto name = m_importRule->cascadeLayerName();
if (!name)
return { };
return stringFromCascadeLayerName(*name);
}
String CSSImportRule::supportsText() const
{
return m_importRule->supportsText();
}
String CSSImportRule::cssTextInternal(const String& urlString) const
{
StringBuilder builder;
builder.append("@import "_s, serializeURL(urlString));
if (auto layerName = this->layerName(); !layerName.isNull()) {
if (layerName.isEmpty())
builder.append(" layer"_s);
else
builder.append(" layer("_s, layerName, ')');
}
auto supports = supportsText();
if (!supports.isNull())
builder.append(" supports("_s, WTFMove(supports), ')');
if (!mediaQueries().isEmpty()) {
builder.append(' ');
MQ::serialize(builder, mediaQueries());
}
builder.append(';');
return builder.toString();
}
String CSSImportRule::cssText() const
{
return cssTextInternal(m_importRule->href());
}
String CSSImportRule::cssText(const CSS::SerializationContext& context) const
{
if (RefPtr sheet = styleSheet()) {
auto urlString = context.replacementURLStringsForCSSStyleSheet.get(*sheet);
if (!urlString.isEmpty())
return cssTextInternal(urlString);
}
auto urlString = m_importRule->href();
auto replacementURLString = context.replacementURLStrings.get(urlString);
return replacementURLString.isEmpty() ? cssTextInternal(urlString) : cssTextInternal(replacementURLString);
}
CSSStyleSheet* CSSImportRule::styleSheet() const
{
if (!m_importRule.get().styleSheet())
return nullptr;
std::optional<bool> isOriginClean;
if (const auto* cachedSheet = m_importRule->cachedCSSStyleSheet())
isOriginClean = cachedSheet->isCORSSameOrigin();
if (!m_styleSheetCSSOMWrapper)
m_styleSheetCSSOMWrapper = CSSStyleSheet::create(*m_importRule.get().styleSheet(), const_cast<CSSImportRule*>(this), isOriginClean);
return m_styleSheetCSSOMWrapper.get();
}
RefPtr<CSSStyleSheet> CSSImportRule::protectedStyleSheet() const
{
return styleSheet();
}
void CSSImportRule::reattach(StyleRuleBase&)
{
// FIXME: Implement when enabling caching for stylesheets with import rules.
ASSERT_NOT_REACHED();
}
const MQ::MediaQueryList& CSSImportRule::mediaQueries() const
{
return m_importRule->mediaQueries();
}
void CSSImportRule::setMediaQueries(MQ::MediaQueryList&& queries)
{
m_importRule->setMediaQueries(WTFMove(queries));
}
void CSSImportRule::getChildStyleSheets(UncheckedKeyHashSet<RefPtr<CSSStyleSheet>>& childStyleSheets)
{
RefPtr sheet = styleSheet();
if (!sheet)
return;
if (childStyleSheets.add(sheet).isNewEntry)
sheet->getChildStyleSheets(childStyleSheets);
}
} // namespace WebCore
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