1 /*
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.
8 *
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.
13 *
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.
18 *
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.
23 */
24
25 #include "config.h"
26 #include "HTMLTableCellElement.h"
27
28 #include "Attribute.h"
29 #include "CSSPropertyNames.h"
30 #include "CSSValueKeywords.h"
31 #include "HTMLNames.h"
32 #include "HTMLTableElement.h"
33 #include "RenderTableCell.h"
34 #ifdef ANDROID_LAYOUT
35 #include "Document.h"
36 #include "Frame.h"
37 #include "Settings.h"
38 #endif
39
40 using std::max;
41 using std::min;
42
43 namespace WebCore {
44
45 // Clamp rowspan at 8k to match Firefox.
46 static const int maxRowspan = 8190;
47
48 using namespace HTMLNames;
49
HTMLTableCellElement(const QualifiedName & tagName,Document * document)50 inline HTMLTableCellElement::HTMLTableCellElement(const QualifiedName& tagName, Document* document)
51 : HTMLTablePartElement(tagName, document)
52 , m_rowSpan(1)
53 , m_colSpan(1)
54 {
55 }
56
create(const QualifiedName & tagName,Document * document)57 PassRefPtr<HTMLTableCellElement> HTMLTableCellElement::create(const QualifiedName& tagName, Document* document)
58 {
59 return adoptRef(new HTMLTableCellElement(tagName, document));
60 }
61
cellIndex() const62 int HTMLTableCellElement::cellIndex() const
63 {
64 int index = 0;
65 for (const Node * node = previousSibling(); node; node = node->previousSibling()) {
66 if (node->hasTagName(tdTag) || node->hasTagName(thTag))
67 index++;
68 }
69
70 return index;
71 }
72
mapToEntry(const QualifiedName & attrName,MappedAttributeEntry & result) const73 bool HTMLTableCellElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
74 {
75 if (attrName == nowrapAttr) {
76 result = eUniversal;
77 return false;
78 }
79
80 if (attrName == widthAttr ||
81 attrName == heightAttr) {
82 result = eCell; // Because of the quirky behavior of ignoring 0 values, cells are special.
83 return false;
84 }
85
86 return HTMLTablePartElement::mapToEntry(attrName, result);
87 }
88
parseMappedAttribute(Attribute * attr)89 void HTMLTableCellElement::parseMappedAttribute(Attribute* attr)
90 {
91 if (attr->name() == rowspanAttr) {
92 m_rowSpan = max(1, min(attr->value().toInt(), maxRowspan));
93 if (renderer() && renderer()->isTableCell())
94 toRenderTableCell(renderer())->updateFromElement();
95 } else if (attr->name() == colspanAttr) {
96 m_colSpan = max(1, attr->value().toInt());
97 if (renderer() && renderer()->isTableCell())
98 toRenderTableCell(renderer())->updateFromElement();
99 } else if (attr->name() == nowrapAttr) {
100 #ifdef ANDROID_LAYOUT
101 if (!(document()->frame()) || document()->frame()->settings()->layoutAlgorithm() != Settings::kLayoutSSR)
102 #endif
103 if (!attr->isNull())
104 addCSSProperty(attr, CSSPropertyWhiteSpace, CSSValueWebkitNowrap);
105 } else if (attr->name() == widthAttr) {
106 if (!attr->value().isEmpty()) {
107 int widthInt = attr->value().toInt();
108 if (widthInt > 0) // width="0" is ignored for compatibility with WinIE.
109 addCSSLength(attr, CSSPropertyWidth, attr->value());
110 }
111 } else if (attr->name() == heightAttr) {
112 if (!attr->value().isEmpty()) {
113 int heightInt = attr->value().toInt();
114 if (heightInt > 0) // height="0" is ignored for compatibility with WinIE.
115 addCSSLength(attr, CSSPropertyHeight, attr->value());
116 }
117 } else
118 HTMLTablePartElement::parseMappedAttribute(attr);
119 }
120
121 // used by table cells to share style decls created by the enclosing table.
additionalAttributeStyleDecls(Vector<CSSMutableStyleDeclaration * > & results)122 void HTMLTableCellElement::additionalAttributeStyleDecls(Vector<CSSMutableStyleDeclaration*>& results)
123 {
124 ContainerNode* p = parentNode();
125 while (p && !p->hasTagName(tableTag))
126 p = p->parentNode();
127 if (!p)
128 return;
129 static_cast<HTMLTableElement*>(p)->addSharedCellDecls(results);
130 }
131
isURLAttribute(Attribute * attr) const132 bool HTMLTableCellElement::isURLAttribute(Attribute *attr) const
133 {
134 return attr->name() == backgroundAttr;
135 }
136
abbr() const137 String HTMLTableCellElement::abbr() const
138 {
139 return getAttribute(abbrAttr);
140 }
141
axis() const142 String HTMLTableCellElement::axis() const
143 {
144 return getAttribute(axisAttr);
145 }
146
setColSpan(int n)147 void HTMLTableCellElement::setColSpan(int n)
148 {
149 setAttribute(colspanAttr, String::number(n));
150 }
151
headers() const152 String HTMLTableCellElement::headers() const
153 {
154 return getAttribute(headersAttr);
155 }
156
setRowSpan(int n)157 void HTMLTableCellElement::setRowSpan(int n)
158 {
159 setAttribute(rowspanAttr, String::number(n));
160 }
161
scope() const162 String HTMLTableCellElement::scope() const
163 {
164 return getAttribute(scopeAttr);
165 }
166
addSubresourceAttributeURLs(ListHashSet<KURL> & urls) const167 void HTMLTableCellElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
168 {
169 HTMLTablePartElement::addSubresourceAttributeURLs(urls);
170
171 addSubresourceURL(urls, document()->completeURL(getAttribute(backgroundAttr)));
172 }
173
cellAbove() const174 HTMLTableCellElement* HTMLTableCellElement::cellAbove() const
175 {
176 RenderObject* cellRenderer = renderer();
177 if (!cellRenderer)
178 return 0;
179 if (!cellRenderer->isTableCell())
180 return 0;
181
182 RenderTableCell* tableCellRenderer = toRenderTableCell(cellRenderer);
183 RenderTableCell* cellAboveRenderer = tableCellRenderer->table()->cellAbove(tableCellRenderer);
184 if (!cellAboveRenderer)
185 return 0;
186
187 return static_cast<HTMLTableCellElement*>(cellAboveRenderer->node());
188 }
189
190 } // namespace WebCore
191