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, 2007, 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 "HTMLTableRowElement.h"
27
28#include "ExceptionCode.h"
29#include "HTMLCollection.h"
30#include "HTMLNames.h"
31#include "HTMLTableCellElement.h"
32#include "HTMLTableElement.h"
33#include "HTMLTableSectionElement.h"
34#include "NodeList.h"
35#include "Text.h"
36
37namespace WebCore {
38
39using namespace HTMLNames;
40
41HTMLTableRowElement::HTMLTableRowElement(const QualifiedName& tagName, Document* document)
42    : HTMLTablePartElement(tagName, document)
43{
44    ASSERT(hasTagName(trTag));
45}
46
47PassRefPtr<HTMLTableRowElement> HTMLTableRowElement::create(Document* document)
48{
49    return adoptRef(new HTMLTableRowElement(trTag, document));
50}
51
52PassRefPtr<HTMLTableRowElement> HTMLTableRowElement::create(const QualifiedName& tagName, Document* document)
53{
54    return adoptRef(new HTMLTableRowElement(tagName, document));
55}
56
57int HTMLTableRowElement::rowIndex() const
58{
59    ContainerNode* table = parentNode();
60    if (!table)
61        return -1;
62    table = table->parentNode();
63    if (!table || !table->hasTagName(tableTag))
64        return -1;
65
66    // To match Firefox, the row indices work like this:
67    //   Rows from the first <thead> are numbered before all <tbody> rows.
68    //   Rows from the first <tfoot> are numbered after all <tbody> rows.
69    //   Rows from other <thead> and <tfoot> elements don't get row indices at all.
70
71    int rIndex = 0;
72
73    if (HTMLTableSectionElement* head = static_cast<HTMLTableElement*>(table)->tHead()) {
74        for (Node *row = head->firstChild(); row; row = row->nextSibling()) {
75            if (row == this)
76                return rIndex;
77            if (row->hasTagName(trTag))
78                ++rIndex;
79        }
80    }
81
82    for (Node *node = table->firstChild(); node; node = node->nextSibling()) {
83        if (node->hasTagName(tbodyTag)) {
84            HTMLTableSectionElement* section = static_cast<HTMLTableSectionElement*>(node);
85            for (Node* row = section->firstChild(); row; row = row->nextSibling()) {
86                if (row == this)
87                    return rIndex;
88                if (row->hasTagName(trTag))
89                    ++rIndex;
90            }
91        }
92    }
93
94    if (HTMLTableSectionElement* foot = static_cast<HTMLTableElement*>(table)->tFoot()) {
95        for (Node *row = foot->firstChild(); row; row = row->nextSibling()) {
96            if (row == this)
97                return rIndex;
98            if (row->hasTagName(trTag))
99                ++rIndex;
100        }
101    }
102
103    // We get here for rows that are in <thead> or <tfoot> sections other than the main header and footer.
104    return -1;
105}
106
107int HTMLTableRowElement::sectionRowIndex() const
108{
109    int rIndex = 0;
110    const Node *n = this;
111    do {
112        n = n->previousSibling();
113        if (n && n->hasTagName(trTag))
114            rIndex++;
115    }
116    while (n);
117
118    return rIndex;
119}
120
121PassRefPtr<HTMLElement> HTMLTableRowElement::insertCell(int index, ExceptionCode& ec)
122{
123    RefPtr<HTMLCollection> children = cells();
124    int numCells = children ? children->length() : 0;
125    if (index < -1 || index > numCells) {
126        ec = INDEX_SIZE_ERR;
127        return 0;
128    }
129
130    RefPtr<HTMLTableCellElement> cell = HTMLTableCellElement::create(tdTag, document());
131    if (index < 0 || index >= numCells)
132        appendChild(cell, ec);
133    else {
134        Node* n;
135        if (index < 1)
136            n = firstChild();
137        else
138            n = children->item(index);
139        insertBefore(cell, n, ec);
140    }
141    return cell.release();
142}
143
144void HTMLTableRowElement::deleteCell(int index, ExceptionCode& ec)
145{
146    RefPtr<HTMLCollection> children = cells();
147    int numCells = children ? children->length() : 0;
148    if (index == -1)
149        index = numCells-1;
150    if (index >= 0 && index < numCells) {
151        RefPtr<Node> cell = children->item(index);
152        HTMLElement::removeChild(cell.get(), ec);
153    } else
154        ec = INDEX_SIZE_ERR;
155}
156
157PassRefPtr<HTMLCollection> HTMLTableRowElement::cells()
158{
159    return ensureCachedHTMLCollection(TRCells);
160}
161
162void HTMLTableRowElement::setCells(HTMLCollection*, ExceptionCode& ec)
163{
164    ec = NO_MODIFICATION_ALLOWED_ERR;
165}
166
167}
168