2 * Copyright (C) 1997 Martin Jones (mjones@kde.org)
3 * (C) 1997 Torben Weis (weis@kde.org)
4 * (C) 1998 Waldo Bastian (bastian@kde.org)
5 * (C) 1999 Lars Knoll (knoll@kde.org)
6 * (C) 1999 Antti Koivisto (koivisto@kde.org)
7 * Copyright (C) 2003, 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public License
20 * along with this library; see the file COPYING.LIB. If not, write to
21 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
26 #include "core/html/HTMLTableCellElement.h"
28 #include "core/CSSPropertyNames.h"
29 #include "core/CSSValueKeywords.h"
30 #include "core/HTMLNames.h"
31 #include "core/dom/Attribute.h"
32 #include "core/dom/ElementTraversal.h"
33 #include "core/html/HTMLTableElement.h"
34 #include "core/rendering/RenderTableCell.h"
41 // Clamp rowspan and colspan at 8k.
42 // Firefox used a limit of 8190 for rowspan but they changed it to 65,534.
43 // (FIXME: We should consider increasing this limit (crbug.com/78577).
44 // Firefox uses a limit of 1,000 for colspan and resets the value to 1
45 // but we don't discriminate between rowspan / colspan as it is artificial.
46 static const int maxColRowSpan = 8190;
48 using namespace HTMLNames;
50 inline HTMLTableCellElement::HTMLTableCellElement(const QualifiedName& tagName, Document& document)
51 : HTMLTablePartElement(tagName, document)
55 DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(HTMLTableCellElement)
57 int HTMLTableCellElement::colSpan() const
59 const AtomicString& colSpanValue = fastGetAttribute(colspanAttr);
60 return max(1, min(colSpanValue.toInt(), maxColRowSpan));
63 int HTMLTableCellElement::rowSpan() const
65 const AtomicString& rowSpanValue = fastGetAttribute(rowspanAttr);
66 return max(1, min(rowSpanValue.toInt(), maxColRowSpan));
69 int HTMLTableCellElement::cellIndex() const
71 if (!isHTMLTableRowElement(parentElement()))
75 for (const HTMLTableCellElement* element = Traversal<HTMLTableCellElement>::previousSibling(*this); element; element = Traversal<HTMLTableCellElement>::previousSibling(*element))
81 bool HTMLTableCellElement::isPresentationAttribute(const QualifiedName& name) const
83 if (name == nowrapAttr || name == widthAttr || name == heightAttr)
85 return HTMLTablePartElement::isPresentationAttribute(name);
88 void HTMLTableCellElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
90 if (name == nowrapAttr)
91 addPropertyToPresentationAttributeStyle(style, CSSPropertyWhiteSpace, CSSValueWebkitNowrap);
92 else if (name == widthAttr) {
93 if (!value.isEmpty()) {
94 int widthInt = value.toInt();
95 if (widthInt > 0) // width="0" is ignored for compatibility with WinIE.
96 addHTMLLengthToStyle(style, CSSPropertyWidth, value);
98 } else if (name == heightAttr) {
99 if (!value.isEmpty()) {
100 int heightInt = value.toInt();
101 if (heightInt > 0) // height="0" is ignored for compatibility with WinIE.
102 addHTMLLengthToStyle(style, CSSPropertyHeight, value);
105 HTMLTablePartElement::collectStyleForPresentationAttribute(name, value, style);
108 void HTMLTableCellElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
110 if (name == rowspanAttr) {
111 if (renderer() && renderer()->isTableCell())
112 toRenderTableCell(renderer())->colSpanOrRowSpanChanged();
113 } else if (name == colspanAttr) {
114 if (renderer() && renderer()->isTableCell())
115 toRenderTableCell(renderer())->colSpanOrRowSpanChanged();
117 HTMLTablePartElement::parseAttribute(name, value);
120 const StylePropertySet* HTMLTableCellElement::additionalPresentationAttributeStyle()
122 if (HTMLTableElement* table = findParentTable())
123 return table->additionalCellStyle();
127 bool HTMLTableCellElement::isURLAttribute(const Attribute& attribute) const
129 return attribute.name() == backgroundAttr || HTMLTablePartElement::isURLAttribute(attribute);
132 bool HTMLTableCellElement::hasLegalLinkAttribute(const QualifiedName& name) const
134 return (hasTagName(tdTag) && name == backgroundAttr) || HTMLTablePartElement::hasLegalLinkAttribute(name);
137 const QualifiedName& HTMLTableCellElement::subResourceAttributeName() const
139 return hasTagName(tdTag) ? backgroundAttr : HTMLTablePartElement::subResourceAttributeName();
142 const AtomicString& HTMLTableCellElement::abbr() const
144 return fastGetAttribute(abbrAttr);
147 const AtomicString& HTMLTableCellElement::axis() const
149 return fastGetAttribute(axisAttr);
152 void HTMLTableCellElement::setColSpan(int n)
154 setIntegralAttribute(colspanAttr, n);
157 const AtomicString& HTMLTableCellElement::headers() const
159 return fastGetAttribute(headersAttr);
162 void HTMLTableCellElement::setRowSpan(int n)
164 setIntegralAttribute(rowspanAttr, n);
167 const AtomicString& HTMLTableCellElement::scope() const
169 return fastGetAttribute(scopeAttr);
172 HTMLTableCellElement* HTMLTableCellElement::cellAbove() const
174 RenderObject* cellRenderer = renderer();
177 if (!cellRenderer->isTableCell())
180 RenderTableCell* tableCellRenderer = toRenderTableCell(cellRenderer);
181 RenderTableCell* cellAboveRenderer = tableCellRenderer->table()->cellAbove(tableCellRenderer);
182 if (!cellAboveRenderer)
185 return toHTMLTableCellElement(cellAboveRenderer->node());