gecko-dev/dom/html/HTMLTableColElement.cpp

120 строки
3.8 KiB
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 "nsMappedAttributes.h"
#include "nsAttrValueInlines.h"
#include "mozilla/GenericSpecifiedValuesInlines.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(TableCol)
namespace mozilla {
namespace 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()
{
}
JSObject*
HTMLTableColElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
{
return HTMLTableColElementBinding::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::charoff) {
return aResult.ParseSpecialIntValue(aValue);
}
if (aAttribute == nsGkAtoms::span) {
/* protection from unrealistic large colspan values */
aResult.ParseClampedNonNegativeInt(aValue, 1, 1, MAX_COLSPAN);
return true;
}
if (aAttribute == nsGkAtoms::width) {
return aResult.ParseSpecialIntValue(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(const nsMappedAttributes* aAttributes,
GenericSpecifiedValues* aData)
{
if (aData->ShouldComputeStyleStruct(NS_STYLE_INHERIT_BIT(Table))) {
if (!aData->PropertyIsSet(eCSSProperty__x_span)) {
// span: int
const nsAttrValue* value = aAttributes->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) {
aData->SetIntValue(eCSSProperty__x_span, value->GetIntegerValue());
}
}
}
}
nsGenericHTMLElement::MapWidthAttributeInto(aAttributes, aData);
nsGenericHTMLElement::MapDivAlignAttributeInto(aAttributes, aData);
nsGenericHTMLElement::MapVAlignAttributeInto(aAttributes, aData);
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
}
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 dom
} // namespace mozilla