| /* |
| * Copyright (C) 1997 Martin Jones (mjones@kde.org) |
| * (C) 1997 Torben Weis (weis@kde.org) |
| * (C) 1998 Waldo Bastian (bastian@kde.org) |
| * (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2010 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 "HTMLTableCellElement.h" |
| |
| #include "CSSPropertyNames.h" |
| #include "CSSValueKeywords.h" |
| #include "ElementInlines.h" |
| #include "HTMLNames.h" |
| #include "HTMLParserIdioms.h" |
| #include "HTMLTableElement.h" |
| #include "RenderTableCell.h" |
| #include <wtf/IsoMallocInlines.h> |
| |
| namespace WebCore { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLTableCellElement); |
| |
| using namespace HTMLNames; |
| |
| // These limits are defined in the HTML specification: |
| // - https://html.spec.whatwg.org/#dom-tdth-colspan |
| // - https://html.spec.whatwg.org/#dom-tdth-rowspan |
| static const unsigned minColspan = 1; |
| static const unsigned maxColspan = 1000; |
| static const unsigned defaultColspan = 1; |
| static const unsigned minRowspan = 0; |
| static const unsigned maxRowspan = 65534; |
| static const unsigned defaultRowspan = 1; |
| |
| Ref<HTMLTableCellElement> HTMLTableCellElement::create(const QualifiedName& tagName, Document& document) |
| { |
| return adoptRef(*new HTMLTableCellElement(tagName, document)); |
| } |
| |
| HTMLTableCellElement::HTMLTableCellElement(const QualifiedName& tagName, Document& document) |
| : HTMLTablePartElement(tagName, document) |
| { |
| ASSERT(hasLocalName(thTag->localName()) || hasLocalName(tdTag->localName())); |
| } |
| |
| unsigned HTMLTableCellElement::colSpan() const |
| { |
| return clampHTMLNonNegativeIntegerToRange(attributeWithoutSynchronization(colspanAttr), minColspan, maxColspan, defaultColspan); |
| } |
| |
| unsigned HTMLTableCellElement::rowSpan() const |
| { |
| // 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. |
| return std::max(1u, rowSpanForBindings()); |
| } |
| |
| unsigned HTMLTableCellElement::rowSpanForBindings() const |
| { |
| return clampHTMLNonNegativeIntegerToRange(attributeWithoutSynchronization(rowspanAttr), minRowspan, maxRowspan, defaultRowspan); |
| } |
| |
| int HTMLTableCellElement::cellIndex() const |
| { |
| int index = 0; |
| if (!parentElement() || !parentElement()->hasTagName(trTag)) |
| return -1; |
| |
| for (const Node * node = previousSibling(); node; node = node->previousSibling()) { |
| if (node->hasTagName(tdTag) || node->hasTagName(thTag)) |
| index++; |
| } |
| |
| return index; |
| } |
| |
| bool HTMLTableCellElement::hasPresentationalHintsForAttribute(const QualifiedName& name) const |
| { |
| if (name == nowrapAttr || name == widthAttr || name == heightAttr) |
| return true; |
| return HTMLTablePartElement::hasPresentationalHintsForAttribute(name); |
| } |
| |
| void HTMLTableCellElement::collectPresentationalHintsForAttribute(const QualifiedName& name, const AtomString& value, MutableStyleProperties& style) |
| { |
| if (name == nowrapAttr) |
| addPropertyToPresentationalHintStyle(style, CSSPropertyWhiteSpace, CSSValueWebkitNowrap); |
| else if (name == widthAttr) { |
| // width="0" is not allowed for compatibility with WinIE. |
| addHTMLLengthToStyle(style, CSSPropertyWidth, value, AllowZeroValue::No); |
| } else if (name == heightAttr) { |
| // width="0" is not allowed for compatibility with WinIE. |
| addHTMLLengthToStyle(style, CSSPropertyHeight, value, AllowZeroValue::No); |
| } else |
| HTMLTablePartElement::collectPresentationalHintsForAttribute(name, value, style); |
| } |
| |
| void HTMLTableCellElement::parseAttribute(const QualifiedName& name, const AtomString& value) |
| { |
| if (name == rowspanAttr) { |
| if (is<RenderTableCell>(renderer())) |
| downcast<RenderTableCell>(*renderer()).colSpanOrRowSpanChanged(); |
| } else if (name == colspanAttr) { |
| if (is<RenderTableCell>(renderer())) |
| downcast<RenderTableCell>(*renderer()).colSpanOrRowSpanChanged(); |
| } else |
| HTMLTablePartElement::parseAttribute(name, value); |
| } |
| |
| const StyleProperties* HTMLTableCellElement::additionalPresentationalHintStyle() const |
| { |
| if (auto table = findParentTable()) |
| return table->additionalCellStyle(); |
| return nullptr; |
| } |
| |
| bool HTMLTableCellElement::isURLAttribute(const Attribute& attribute) const |
| { |
| return attribute.name() == backgroundAttr || HTMLTablePartElement::isURLAttribute(attribute); |
| } |
| |
| String HTMLTableCellElement::abbr() const |
| { |
| return attributeWithoutSynchronization(abbrAttr); |
| } |
| |
| String HTMLTableCellElement::axis() const |
| { |
| return attributeWithoutSynchronization(axisAttr); |
| } |
| |
| void HTMLTableCellElement::setColSpan(unsigned n) |
| { |
| setAttributeWithoutSynchronization(colspanAttr, AtomString::number(limitToOnlyHTMLNonNegative(n, 1))); |
| } |
| |
| String HTMLTableCellElement::headers() const |
| { |
| return attributeWithoutSynchronization(headersAttr); |
| } |
| |
| void HTMLTableCellElement::setRowSpanForBindings(unsigned n) |
| { |
| setAttributeWithoutSynchronization(rowspanAttr, AtomString::number(limitToOnlyHTMLNonNegative(n, 1))); |
| } |
| |
| const AtomString& HTMLTableCellElement::scope() const |
| { |
| // https://html.spec.whatwg.org/multipage/tables.html#attr-th-scope |
| static MainThreadNeverDestroyed<const AtomString> row("row"_s); |
| static MainThreadNeverDestroyed<const AtomString> col("col"_s); |
| static MainThreadNeverDestroyed<const AtomString> rowgroup("rowgroup"_s); |
| static MainThreadNeverDestroyed<const AtomString> colgroup("colgroup"_s); |
| |
| const AtomString& value = attributeWithoutSynchronization(HTMLNames::scopeAttr); |
| |
| if (equalIgnoringASCIICase(value, row)) |
| return row; |
| if (equalIgnoringASCIICase(value, col)) |
| return col; |
| if (equalIgnoringASCIICase(value, rowgroup)) |
| return rowgroup; |
| if (equalIgnoringASCIICase(value, colgroup)) |
| return colgroup; |
| return emptyAtom(); |
| } |
| |
| void HTMLTableCellElement::setScope(const AtomString& scope) |
| { |
| setAttributeWithoutSynchronization(scopeAttr, scope); |
| } |
| |
| void HTMLTableCellElement::addSubresourceAttributeURLs(ListHashSet<URL>& urls) const |
| { |
| HTMLTablePartElement::addSubresourceAttributeURLs(urls); |
| |
| addSubresourceURL(urls, document().completeURL(attributeWithoutSynchronization(backgroundAttr))); |
| } |
| |
| HTMLTableCellElement* HTMLTableCellElement::cellAbove() const |
| { |
| auto* cellRenderer = renderer(); |
| if (!is<RenderTableCell>(cellRenderer)) |
| return nullptr; |
| |
| auto& tableCellRenderer = downcast<RenderTableCell>(*cellRenderer); |
| auto* cellAboveRenderer = tableCellRenderer.table()->cellAbove(&tableCellRenderer); |
| if (!cellAboveRenderer) |
| return nullptr; |
| |
| return downcast<HTMLTableCellElement>(cellAboveRenderer->element()); |
| } |
| |
| } // namespace WebCore |