third_party/WebKit/Source/core/html/HTMLTableSectionElement.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, 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/HTMLTableSectionElement.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/HTMLTableElement.h"
  35 #include "core/html/HTMLTableRowElement.h"
  36
  37 namespace blink {
  38
  39 using namespace HTMLNames;
  40
  41 inline HTMLTableSectionElement::HTMLTableSectionElement(const QualifiedName& tagName, Document& document)
  42     : HTMLTablePartElement(tagName, document)
  43 {
  44 }
  45
  46 DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(HTMLTableSectionElement)
  47
  48 const StylePropertySet* HTMLTableSectionElement::additionalPresentationAttributeStyle()
  49 {
  50     if (HTMLTableElement* table = findParentTable())
  51         return table->additionalGroupStyle(true);
  52     return nullptr;
  53 }
  54
  55 // these functions are rather slow, since we need to get the row at
  56 // the index... but they aren't used during usual HTML parsing anyway
  57 PassRefPtrWillBeRawPtr<HTMLElement> HTMLTableSectionElement::insertRow(int index, ExceptionState& exceptionState)
  58 {
  59     RefPtrWillBeRawPtr<HTMLCollection> children = rows();
  60     int numRows = children ? static_cast<int>(children->length()) : 0;
  61     if (index < -1 || index > numRows) {
  62         exceptionState.throwDOMException(IndexSizeError, "The provided index (" + String::number(index) + " is outside the range [-1, " + String::number(numRows) + "].");
  63         return nullptr;
  64     }
  65
  66     RefPtrWillBeRawPtr<HTMLTableRowElement> row = HTMLTableRowElement::create(document());
  67     if (numRows == index || index == -1)
  68         appendChild(row, exceptionState);
  69     else
  70         insertBefore(row, children->item(index), exceptionState);
  71     return row.release();
  72 }
  73
  74 void HTMLTableSectionElement::deleteRow(int index, ExceptionState& exceptionState)
  75 {
  76     RefPtrWillBeRawPtr<HTMLCollection> children = rows();
  77     int numRows = children ? (int)children->length() : 0;
  78     if (index == -1)
  79         index = numRows - 1;
  80     if (index >= 0 && index < numRows) {
  81         RefPtrWillBeRawPtr<Element> row = children->item(index);
  82         HTMLElement::removeChild(row.get(), exceptionState);
  83     } else {
  84         exceptionState.throwDOMException(IndexSizeError, "The provided index (" + String::number(index) + " is outside the range [-1, " + String::number(numRows) + "].");
  85     }
  86 }
  87
  88 int HTMLTableSectionElement::numRows() const
  89 {
  90     int rowCount = 0;
  91     for (const HTMLTableRowElement* row = Traversal<HTMLTableRowElement>::firstChild(*this); row; row = Traversal<HTMLTableRowElement>::nextSibling(*row))
  92         ++rowCount;
  93     return rowCount;
  94 }
  95
  96 PassRefPtrWillBeRawPtr<HTMLCollection> HTMLTableSectionElement::rows()
  97 {
  98     return ensureCachedCollection<HTMLCollection>(TSectionRows);
  99 }
 100
 101 }