blob: 5bbfe386e0daefb690b99feba8ef181c969438c6 [file] [log] [blame]
/**
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2006, 2007 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 "StyleSheetList.h"
#include "CSSStyleSheet.h"
#include "Document.h"
#include "HTMLNames.h"
#include "HTMLStyleElement.h"
#include "ShadowRoot.h"
#include "StyleScope.h"
#include <wtf/text/WTFString.h>
namespace WebCore {
using namespace HTMLNames;
StyleSheetList::StyleSheetList(Document& document)
: m_document(document)
{
}
StyleSheetList::StyleSheetList(ShadowRoot& shadowRoot)
: m_shadowRoot(&shadowRoot)
{
}
StyleSheetList::~StyleSheetList() = default;
inline const Vector<RefPtr<StyleSheet>>& StyleSheetList::styleSheets() const
{
if (m_document)
return m_document->styleScope().styleSheetsForStyleSheetList();
if (m_shadowRoot)
return m_shadowRoot->styleScope().styleSheetsForStyleSheetList();
return m_detachedStyleSheets;
}
Node* StyleSheetList::ownerNode() const
{
if (m_document)
return m_document.get();
return m_shadowRoot;
}
void StyleSheetList::detach()
{
if (m_document) {
ASSERT(!m_shadowRoot);
m_detachedStyleSheets = m_document->styleScope().styleSheetsForStyleSheetList();
m_document = nullptr;
} else if (m_shadowRoot) {
ASSERT(!m_document);
m_detachedStyleSheets = m_shadowRoot->styleScope().styleSheetsForStyleSheetList();
m_shadowRoot = nullptr;
} else
ASSERT_NOT_REACHED();
}
unsigned StyleSheetList::length() const
{
return styleSheets().size();
}
StyleSheet* StyleSheetList::item(unsigned index)
{
const Vector<RefPtr<StyleSheet>>& sheets = styleSheets();
return index < sheets.size() ? sheets[index].get() : 0;
}
CSSStyleSheet* StyleSheetList::namedItem(const AtomString& name) const
{
// Support the named getter on document for backwards compatibility.
if (!m_document)
return nullptr;
// IE also supports retrieving a stylesheet by name, using the name/id of the <style> tag
// (this is consistent with all the other collections)
// ### Bad implementation because returns a single element (are IDs always unique?)
// and doesn't look for name attribute.
// But unicity of stylesheet ids is good practice anyway ;)
Element* element = m_document->getElementById(name);
if (is<HTMLStyleElement>(element))
return downcast<HTMLStyleElement>(element)->sheet();
return nullptr;
}
Vector<AtomString> StyleSheetList::supportedPropertyNames()
{
// FIXME: Should be implemented.
return Vector<AtomString>();
}
} // namespace WebCore