third_party/WebKit/Source/core/html/HTMLTableColElement.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/HTMLTableColElement.h"
  27
  28 #include "core/CSSPropertyNames.h"
  29 #include "core/HTMLNames.h"
  30 #include "core/html/HTMLTableElement.h"
  31 #include "core/html/parser/HTMLParserIdioms.h"
  32 #include "core/layout/LayoutTableCol.h"
  33
  34 namespace blink {
  35
  36 using namespace HTMLNames;
  37
  38 inline HTMLTableColElement::HTMLTableColElement(const QualifiedName& tagName, Document& document)
  39     : HTMLTablePartElement(tagName, document)
  40     , m_span(1)
  41 {
  42 }
  43
  44 DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(HTMLTableColElement)
  45
  46 bool HTMLTableColElement::isPresentationAttribute(const QualifiedName& name) const
  47 {
  48     if (name == widthAttr)
  49         return true;
  50     return HTMLTablePartElement::isPresentationAttribute(name);
  51 }
  52
  53 void HTMLTableColElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
  54 {
  55     if (name == widthAttr)
  56         addHTMLLengthToStyle(style, CSSPropertyWidth, value);
  57     else
  58         HTMLTablePartElement::collectStyleForPresentationAttribute(name, value, style);
  59 }
  60
  61 void HTMLTableColElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
  62 {
  63     if (name == spanAttr) {
  64         unsigned newSpan = 0;
  65         if (value.isEmpty() || !parseHTMLNonNegativeInteger(value, newSpan) || newSpan < 1) {
  66             // If the value of span is not a valid non-negative integer greater than zero,
  67             // set it to 1.
  68             newSpan = 1;
  69         }
  70         m_span = newSpan;
  71         if (layoutObject() && layoutObject()->isLayoutTableCol())
  72             layoutObject()->updateFromElement();
  73     } else if (name == widthAttr) {
  74         if (!value.isEmpty()) {
  75             if (layoutObject() && layoutObject()->isLayoutTableCol()) {
  76                 LayoutTableCol* col = toLayoutTableCol(layoutObject());
  77                 int newWidth = width().toInt();
  78                 if (newWidth != col->size().width())
  79                     col->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(LayoutInvalidationReason::AttributeChanged);
  80             }
  81         }
  82     } else {
  83         HTMLTablePartElement::parseAttribute(name, value);
  84     }
  85 }
  86
  87 const StylePropertySet* HTMLTableColElement::additionalPresentationAttributeStyle()
  88 {
  89     if (!hasTagName(colgroupTag))
  90         return nullptr;
  91     if (HTMLTableElement* table = findParentTable())
  92         return table->additionalGroupStyle(false);
  93     return nullptr;
  94 }
  95
  96 void HTMLTableColElement::setSpan(unsigned n)
  97 {
  98     setUnsignedIntegralAttribute(spanAttr, n);
  99 }
 100
 101 const AtomicString& HTMLTableColElement::width() const
 102 {
 103     return getAttribute(widthAttr);
 104 }
 105
 106 }