third_party/WebKit/Source/core/html/HTMLTableRowElement.cpp

   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/HTMLTableRowsCollection.h"
  37 #include "core/html/HTMLTableSectionElement.h"
  38
  39 namespace blink {
  40
  41 using namespace HTMLNames;
  42
  43 inline HTMLTableRowElement::HTMLTableRowElement(Document& document)
  44     : HTMLTablePartElement(trTag, document)
  45 {
  46 }
  47
  48 DEFINE_NODE_FACTORY(HTMLTableRowElement)
  49
  50 bool HTMLTableRowElement::hasLegalLinkAttribute(const QualifiedName& name) const
  51 {
  52     return name == backgroundAttr || HTMLTablePartElement::hasLegalLinkAttribute(name);
  53 }
  54
  55 const QualifiedName& HTMLTableRowElement::subResourceAttributeName() const
  56 {
  57     return backgroundAttr;
  58 }
  59
  60 int HTMLTableRowElement::rowIndex() const
  61 {
  62     ContainerNode* maybeTable = parentNode();
  63     if (maybeTable && isHTMLTableSectionElement(maybeTable)) {
  64         // Skip THEAD, TBODY and TFOOT.
  65         maybeTable = maybeTable->parentNode();
  66     }
  67     if (!(maybeTable && isHTMLTableElement(maybeTable)))
  68         return -1;
  69
  70     RefPtrWillBeRawPtr<HTMLTableRowsCollection> rows =
  71         toHTMLTableElement(maybeTable)->rows();
  72     HTMLTableRowElement* candidate = rows->item(0);
  73     for (int i = 0; candidate; i++, candidate = rows->item(i)) {
  74         if (this == candidate)
  75             return i;
  76     }
  77
  78     return -1;
  79 }
  80
  81 int HTMLTableRowElement::sectionRowIndex() const
  82 {
  83     int rIndex = 0;
  84     const Node* n = this;
  85     do {
  86         n = n->previousSibling();
  87         if (n && isHTMLTableRowElement(*n))
  88             ++rIndex;
  89     } while (n);
  90
  91     return rIndex;
  92 }
  93
  94 PassRefPtrWillBeRawPtr<HTMLElement> HTMLTableRowElement::insertCell(int index, ExceptionState& exceptionState)
  95 {
  96     RefPtrWillBeRawPtr<HTMLCollection> children = cells();
  97     int numCells = children ? children->length() : 0;
  98     if (index < -1 || index > numCells) {
  99         exceptionState.throwDOMException(IndexSizeError, "The value provided (" + String::number(index) + ") is outside the range [-1, " + String::number(numCells) + "].");
 100         return nullptr;
 101     }
 102
 103     RefPtrWillBeRawPtr<HTMLTableCellElement> cell = HTMLTableCellElement::create(tdTag, document());
 104     if (numCells == index || index == -1)
 105         appendChild(cell, exceptionState);
 106     else
 107         insertBefore(cell, children->item(index), exceptionState);
 108     return cell.release();
 109 }
 110
 111 void HTMLTableRowElement::deleteCell(int index, ExceptionState& exceptionState)
 112 {
 113     RefPtrWillBeRawPtr<HTMLCollection> children = cells();
 114     int numCells = children ? children->length() : 0;
 115     if (index == -1)
 116         index = numCells-1;
 117     if (index >= 0 && index < numCells) {
 118         RefPtrWillBeRawPtr<Element> cell = children->item(index);
 119         HTMLElement::removeChild(cell.get(), exceptionState);
 120     } else {
 121         exceptionState.throwDOMException(IndexSizeError, "The value provided (" + String::number(index) + ") is outside the range [0, " + String::number(numCells) + ").");
 122     }
 123 }
 124
 125 PassRefPtrWillBeRawPtr<HTMLCollection> HTMLTableRowElement::cells()
 126 {
 127     return ensureCachedCollection<HTMLCollection>(TRCells);
 128 }
 129
 130 }