211 lines
7.4 KiB
C++
211 lines
7.4 KiB
C++
/*
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* Copyright (C) 1997 Martin Jones (mjones@kde.org)
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* (C) 1997 Torben Weis (weis@kde.org)
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* (C) 1998 Waldo Bastian (bastian@kde.org)
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* (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* Copyright (C) 2003, 2004, 2005, 2006, 2010 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 "HTMLTableCellElement.h"
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#include "CSSPropertyNames.h"
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#include "CSSValueKeywords.h"
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#include "HTMLNames.h"
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#include "HTMLParserIdioms.h"
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#include "HTMLTableElement.h"
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#include "RenderTableCell.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLTableCellElement);
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using namespace HTMLNames;
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// These limits are defined in the HTML specification:
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// - https://html.spec.whatwg.org/#dom-tdth-colspan
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// - https://html.spec.whatwg.org/#dom-tdth-rowspan
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static const unsigned minColspan = 1;
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static const unsigned maxColspan = 1000;
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static const unsigned defaultColspan = 1;
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static const unsigned minRowspan = 0;
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static const unsigned maxRowspan = 65534;
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static const unsigned defaultRowspan = 1;
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Ref<HTMLTableCellElement> HTMLTableCellElement::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new HTMLTableCellElement(tagName, document));
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}
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HTMLTableCellElement::HTMLTableCellElement(const QualifiedName& tagName, Document& document)
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: HTMLTablePartElement(tagName, document)
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{
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ASSERT(hasLocalName(thTag->localName()) || hasLocalName(tdTag->localName()));
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}
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unsigned HTMLTableCellElement::colSpan() const
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{
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return clampHTMLNonNegativeIntegerToRange(attributeWithoutSynchronization(colspanAttr), minColspan, maxColspan, defaultColspan);
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}
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unsigned HTMLTableCellElement::rowSpan() const
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{
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// FIXME: a rowSpan equal to 0 should be allowed, and mean that the cell is to span all the remaining rows in the row group.
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return std::max(1u, rowSpanForBindings());
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}
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unsigned HTMLTableCellElement::rowSpanForBindings() const
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{
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return clampHTMLNonNegativeIntegerToRange(attributeWithoutSynchronization(rowspanAttr), minRowspan, maxRowspan, defaultRowspan);
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}
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int HTMLTableCellElement::cellIndex() const
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{
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int index = 0;
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if (!parentElement() || !parentElement()->hasTagName(trTag))
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return -1;
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for (const Node * node = previousSibling(); node; node = node->previousSibling()) {
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if (node->hasTagName(tdTag) || node->hasTagName(thTag))
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index++;
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}
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return index;
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}
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bool HTMLTableCellElement::hasPresentationalHintsForAttribute(const QualifiedName& name) const
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{
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if (name == nowrapAttr || name == widthAttr || name == heightAttr)
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return true;
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return HTMLTablePartElement::hasPresentationalHintsForAttribute(name);
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}
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void HTMLTableCellElement::collectPresentationalHintsForAttribute(const QualifiedName& name, const AtomString& value, MutableStyleProperties& style)
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{
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if (name == nowrapAttr)
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addPropertyToPresentationalHintStyle(style, CSSPropertyWhiteSpace, CSSValueWebkitNowrap);
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else if (name == widthAttr) {
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if (parseHTMLInteger(value).value_or(0) > 0) // width="0" is ignored for compatibility with WinIE.
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addHTMLLengthToStyle(style, CSSPropertyWidth, value);
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} else if (name == heightAttr) {
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if (parseHTMLInteger(value).value_or(0) > 0) // height="0" is ignored for compatibility with WinIE.
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addHTMLLengthToStyle(style, CSSPropertyHeight, value);
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} else
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HTMLTablePartElement::collectPresentationalHintsForAttribute(name, value, style);
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}
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void HTMLTableCellElement::parseAttribute(const QualifiedName& name, const AtomString& value)
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{
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if (name == rowspanAttr) {
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if (is<RenderTableCell>(renderer()))
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downcast<RenderTableCell>(*renderer()).colSpanOrRowSpanChanged();
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} else if (name == colspanAttr) {
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if (is<RenderTableCell>(renderer()))
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downcast<RenderTableCell>(*renderer()).colSpanOrRowSpanChanged();
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} else
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HTMLTablePartElement::parseAttribute(name, value);
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}
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const StyleProperties* HTMLTableCellElement::additionalPresentationalHintStyle() const
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{
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if (auto table = findParentTable())
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return table->additionalCellStyle();
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return nullptr;
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}
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bool HTMLTableCellElement::isURLAttribute(const Attribute& attribute) const
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{
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return attribute.name() == backgroundAttr || HTMLTablePartElement::isURLAttribute(attribute);
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}
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String HTMLTableCellElement::abbr() const
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{
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return attributeWithoutSynchronization(abbrAttr);
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}
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String HTMLTableCellElement::axis() const
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{
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return attributeWithoutSynchronization(axisAttr);
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}
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void HTMLTableCellElement::setColSpan(unsigned n)
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{
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setAttributeWithoutSynchronization(colspanAttr, AtomString::number(limitToOnlyHTMLNonNegative(n, 1)));
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}
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String HTMLTableCellElement::headers() const
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{
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return attributeWithoutSynchronization(headersAttr);
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}
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void HTMLTableCellElement::setRowSpanForBindings(unsigned n)
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{
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setAttributeWithoutSynchronization(rowspanAttr, AtomString::number(limitToOnlyHTMLNonNegative(n, 1)));
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}
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const AtomString& HTMLTableCellElement::scope() const
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{
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// https://html.spec.whatwg.org/multipage/tables.html#attr-th-scope
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static MainThreadNeverDestroyed<const AtomString> row("row", AtomString::ConstructFromLiteral);
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static MainThreadNeverDestroyed<const AtomString> col("col", AtomString::ConstructFromLiteral);
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static MainThreadNeverDestroyed<const AtomString> rowgroup("rowgroup", AtomString::ConstructFromLiteral);
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static MainThreadNeverDestroyed<const AtomString> colgroup("colgroup", AtomString::ConstructFromLiteral);
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const AtomString& value = attributeWithoutSynchronization(HTMLNames::scopeAttr);
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if (equalIgnoringASCIICase(value, row))
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return row;
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if (equalIgnoringASCIICase(value, col))
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return col;
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if (equalIgnoringASCIICase(value, rowgroup))
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return rowgroup;
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if (equalIgnoringASCIICase(value, colgroup))
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return colgroup;
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return emptyAtom();
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}
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void HTMLTableCellElement::setScope(const AtomString& scope)
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{
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setAttributeWithoutSynchronization(scopeAttr, scope);
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}
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void HTMLTableCellElement::addSubresourceAttributeURLs(ListHashSet<URL>& urls) const
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{
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HTMLTablePartElement::addSubresourceAttributeURLs(urls);
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addSubresourceURL(urls, document().completeURL(attributeWithoutSynchronization(backgroundAttr)));
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}
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HTMLTableCellElement* HTMLTableCellElement::cellAbove() const
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{
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auto* cellRenderer = renderer();
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if (!is<RenderTableCell>(cellRenderer))
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return nullptr;
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auto& tableCellRenderer = downcast<RenderTableCell>(*cellRenderer);
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auto* cellAboveRenderer = tableCellRenderer.table()->cellAbove(&tableCellRenderer);
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if (!cellAboveRenderer)
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return nullptr;
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return downcast<HTMLTableCellElement>(cellAboveRenderer->element());
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}
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} // namespace WebCore
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