113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
/**
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* (C) 1999-2003 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "StyleSheetList.h"
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#include "CSSStyleSheet.h"
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#include "Document.h"
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#include "HTMLNames.h"
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#include "HTMLStyleElement.h"
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#include "ShadowRoot.h"
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#include "StyleScope.h"
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#include <wtf/text/WTFString.h>
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namespace WebCore {
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using namespace HTMLNames;
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StyleSheetList::StyleSheetList(Document& document)
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: m_document(makeWeakPtr(document))
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{
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}
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StyleSheetList::StyleSheetList(ShadowRoot& shadowRoot)
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: m_shadowRoot(&shadowRoot)
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{
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}
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StyleSheetList::~StyleSheetList() = default;
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inline const Vector<RefPtr<StyleSheet>>& StyleSheetList::styleSheets() const
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{
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if (m_document)
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return m_document->styleScope().styleSheetsForStyleSheetList();
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if (m_shadowRoot)
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return m_shadowRoot->styleScope().styleSheetsForStyleSheetList();
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return m_detachedStyleSheets;
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}
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Node* StyleSheetList::ownerNode() const
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{
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if (m_document)
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return m_document.get();
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return m_shadowRoot;
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}
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void StyleSheetList::detach()
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{
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if (m_document) {
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ASSERT(!m_shadowRoot);
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m_detachedStyleSheets = m_document->styleScope().styleSheetsForStyleSheetList();
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m_document = nullptr;
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} else if (m_shadowRoot) {
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ASSERT(!m_document);
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m_detachedStyleSheets = m_shadowRoot->styleScope().styleSheetsForStyleSheetList();
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m_shadowRoot = nullptr;
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} else
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ASSERT_NOT_REACHED();
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}
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unsigned StyleSheetList::length() const
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{
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return styleSheets().size();
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}
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StyleSheet* StyleSheetList::item(unsigned index)
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{
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const Vector<RefPtr<StyleSheet>>& sheets = styleSheets();
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return index < sheets.size() ? sheets[index].get() : 0;
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}
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CSSStyleSheet* StyleSheetList::namedItem(const AtomString& name) const
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{
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// Support the named getter on document for backwards compatibility.
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if (!m_document)
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return nullptr;
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// IE also supports retrieving a stylesheet by name, using the name/id of the <style> tag
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// (this is consistent with all the other collections)
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// ### Bad implementation because returns a single element (are IDs always unique?)
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// and doesn't look for name attribute.
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// But unicity of stylesheet ids is good practice anyway ;)
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Element* element = m_document->getElementById(name);
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if (is<HTMLStyleElement>(element))
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return downcast<HTMLStyleElement>(element)->sheet();
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return nullptr;
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}
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Vector<AtomString> StyleSheetList::supportedPropertyNames()
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{
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// FIXME: Should be implemented.
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return Vector<AtomString>();
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}
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} // namespace WebCore
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