Quelle HTMLTableColElement.cpp Sprache: C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/dom/HTMLTableColElement.h"
#include "mozilla/dom/HTMLTableColElementBinding.h"
#include "nsAttrValueInlines.h"
#include "mozilla/MappedDeclarationsBuilder.h"

NS_IMPL_NS_NEW_HTML_ELEMENT(TableCol)

namespace mozilla::dom {

// use the same protection as ancient code did
// http://lxr.mozilla.org/classic/source/lib/layout/laytable.c#46
#define MAX_COLSPAN 1000

HTMLTableColElement::~HTMLTableColElement() = default;

JSObject* HTMLTableColElement::WrapNode(JSContext* aCx,
                                        JS::Handle<JSObject*> aGivenProto) {
  return HTMLTableColElement_Binding::Wrap(aCx, this, aGivenProto);
}

NS_IMPL_ELEMENT_CLONE(HTMLTableColElement)

bool HTMLTableColElement::ParseAttribute(int32_t aNamespaceID,
                                         nsAtom* aAttribute,
                                         const nsAString& aValue,
                                         nsIPrincipal* aMaybeScriptedPrincipal,
                                         nsAttrValue& aResult) {
  if (aNamespaceID == kNameSpaceID_None) {
    /* ignore these attributes, stored simply as strings ch */
    if (aAttribute == nsGkAtoms::span) {
      /* protection from unrealistic large colspan values */
      aResult.ParseClampedNonNegativeInt(aValue, 1, 1, MAX_COLSPAN);
      return true;
    }
    if (aAttribute == nsGkAtoms::width) {
      // Spec says to use ParseNonzeroHTMLDimension, but Chrome and Safari both
      // allow 0, and we did all along too, so keep that behavior.  See
      // https://github.com/whatwg/html/issues/4717
      return aResult.ParseHTMLDimension(aValue);
    }
    if (aAttribute == nsGkAtoms::align) {
      return ParseTableCellHAlignValue(aValue, aResult);
    }
    if (aAttribute == nsGkAtoms::valign) {
      return ParseTableVAlignValue(aValue, aResult);
    }
  }

  return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
                                              aMaybeScriptedPrincipal, aResult);
}

void HTMLTableColElement::MapAttributesIntoRule(
    MappedDeclarationsBuilder& aBuilder) {
  if (!aBuilder.PropertyIsSet(eCSSProperty__x_span)) {
    // span: int
    const nsAttrValue* value = aBuilder.GetAttr(nsGkAtoms::span);
    if (value && value->Type() == nsAttrValue::eInteger) {
      int32_t val = value->GetIntegerValue();
      // Note: Do NOT use this code for table cells!  The value "0"
      // means something special for colspan and rowspan, but for <col
      // span> and <colgroup span> it's just disallowed.
      if (val > 0) {
        aBuilder.SetIntValue(eCSSProperty__x_span, value->GetIntegerValue());
      }
    }
  }

  nsGenericHTMLElement::MapWidthAttributeInto(aBuilder);
  nsGenericHTMLElement::MapDivAlignAttributeInto(aBuilder);
  nsGenericHTMLElement::MapVAlignAttributeInto(aBuilder);
  nsGenericHTMLElement::MapCommonAttributesInto(aBuilder);
}

NS_IMETHODIMP_(bool)
HTMLTableColElement::IsAttributeMapped(const nsAtom* aAttribute) const {
  static const MappedAttributeEntry attributes[] = {{nsGkAtoms::width},
                                                    {nsGkAtoms::align},
                                                    {nsGkAtoms::valign},
                                                    {nsGkAtoms::span},
                                                    {nullptr}};

  static const MappedAttributeEntry* const map[] = {
      attributes,
      sCommonAttributeMap,
  };

  return FindAttributeDependence(aAttribute, map);
}

nsMapRuleToAttributesFunc HTMLTableColElement::GetAttributeMappingFunction()
    const {
  return &MapAttributesIntoRule;
}

}  // namespace mozilla::dom

quality100%

¤ Dauer der Verarbeitung: 0.12 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.