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 "core/html/HTMLTableRowElement.h"
27
28#include "bindings/core/v8/ExceptionState.h"
29#include "core/HTMLNames.h"
30#include "core/dom/ElementTraversal.h"
31#include "core/dom/ExceptionCode.h"
32#include "core/dom/NodeListsNodeData.h"
33#include "core/html/HTMLCollection.h"
34#include "core/html/HTMLTableCellElement.h"
35#include "core/html/HTMLTableElement.h"
36#include "core/html/HTMLTableSectionElement.h"
37
38namespace blink {
39
40using namespace HTMLNames;
41
42inline HTMLTableRowElement::HTMLTableRowElement(Document& document)
43    : HTMLTablePartElement(trTag, document)
44{
45}
46
47DEFINE_NODE_FACTORY(HTMLTableRowElement)
48
49bool HTMLTableRowElement::hasLegalLinkAttribute(const QualifiedName& name) const
50{
51    return name == backgroundAttr || HTMLTablePartElement::hasLegalLinkAttribute(name);
52}
53
54const QualifiedName& HTMLTableRowElement::subResourceAttributeName() const
55{
56    return backgroundAttr;
57}
58
59int HTMLTableRowElement::rowIndex() const
60{
61    ContainerNode* table = parentNode();
62    if (!table)
63        return -1;
64    table = table->parentNode();
65    if (!isHTMLTableElement(table))
66        return -1;
67
68    // To match Firefox, the row indices work like this:
69    //   Rows from the first <thead> are numbered before all <tbody> rows.
70    //   Rows from the first <tfoot> are numbered after all <tbody> rows.
71    //   Rows from other <thead> and <tfoot> elements don't get row indices at all.
72
73    int rIndex = 0;
74
75    if (HTMLTableSectionElement* head = toHTMLTableElement(table)->tHead()) {
76        for (HTMLTableRowElement* row = Traversal<HTMLTableRowElement>::firstChild(*head); row; row = Traversal<HTMLTableRowElement>::nextSibling(*row)) {
77            if (row == this)
78                return rIndex;
79            ++rIndex;
80        }
81    }
82
83    for (HTMLElement* tbody = Traversal<HTMLElement>::firstChild(*table, HasHTMLTagName(tbodyTag)); tbody; tbody = Traversal<HTMLElement>::nextSibling(*tbody, HasHTMLTagName(tbodyTag))) {
84        for (HTMLTableRowElement* row = Traversal<HTMLTableRowElement>::firstChild(*tbody); row; row = Traversal<HTMLTableRowElement>::nextSibling(*row)) {
85            if (row == this)
86                return rIndex;
87            ++rIndex;
88        }
89    }
90
91    if (HTMLTableSectionElement* foot = toHTMLTableElement(table)->tFoot()) {
92        for (HTMLTableRowElement* row = Traversal<HTMLTableRowElement>::firstChild(*foot); row; row = Traversal<HTMLTableRowElement>::nextSibling(*row)) {
93            if (row == this)
94                return rIndex;
95            ++rIndex;
96        }
97    }
98
99    // We get here for rows that are in <thead> or <tfoot> sections other than the main header and footer.
100    return -1;
101}
102
103int HTMLTableRowElement::sectionRowIndex() const
104{
105    int rIndex = 0;
106    const Node* n = this;
107    do {
108        n = n->previousSibling();
109        if (n && isHTMLTableRowElement(*n))
110            ++rIndex;
111    } while (n);
112
113    return rIndex;
114}
115
116PassRefPtrWillBeRawPtr<HTMLElement> HTMLTableRowElement::insertCell(int index, ExceptionState& exceptionState)
117{
118    RefPtrWillBeRawPtr<HTMLCollection> children = cells();
119    int numCells = children ? children->length() : 0;
120    if (index < -1 || index > numCells) {
121        exceptionState.throwDOMException(IndexSizeError, "The value provided (" + String::number(index) + ") is outside the range [-1, " + String::number(numCells) + "].");
122        return nullptr;
123    }
124
125    RefPtrWillBeRawPtr<HTMLTableCellElement> cell = HTMLTableCellElement::create(tdTag, document());
126    if (numCells == index || index == -1)
127        appendChild(cell, exceptionState);
128    else
129        insertBefore(cell, children->item(index), exceptionState);
130    return cell.release();
131}
132
133void HTMLTableRowElement::deleteCell(int index, ExceptionState& exceptionState)
134{
135    RefPtrWillBeRawPtr<HTMLCollection> children = cells();
136    int numCells = children ? children->length() : 0;
137    if (index == -1)
138        index = numCells-1;
139    if (index >= 0 && index < numCells) {
140        RefPtrWillBeRawPtr<Element> cell = children->item(index);
141        HTMLElement::removeChild(cell.get(), exceptionState);
142    } else {
143        exceptionState.throwDOMException(IndexSizeError, "The value provided (" + String::number(index) + ") is outside the range [0, " + String::number(numCells) + ").");
144    }
145}
146
147PassRefPtrWillBeRawPtr<HTMLCollection> HTMLTableRowElement::cells()
148{
149    return ensureCachedCollection<HTMLCollection>(TRCells);
150}
151
152}
153