mozilla
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gecko-dev
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gecko-dev/dom/html/HTMLTableRowElement.cpp

330 строки
8.9 KiB
C++
Исходник Ответственный История

/* -*- 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/HTMLTableRowElement.h"
#include "mozilla/dom/HTMLTableElement.h"
#include "nsMappedAttributes.h"
#include "nsAttrValueInlines.h"
#include "nsRuleData.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/HTMLTableRowElementBinding.h"
#include "nsContentList.h"
#include "nsContentUtils.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(TableRow)
namespace mozilla {
namespace dom {
HTMLTableRowElement::~HTMLTableRowElement()
{
}
JSObject*
HTMLTableRowElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
{
return HTMLTableRowElementBinding::Wrap(aCx, this, aGivenProto);
}
NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLTableRowElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLTableRowElement,
nsGenericHTMLElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCells)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_ADDREF_INHERITED(HTMLTableRowElement, Element)
NS_IMPL_RELEASE_INHERITED(HTMLTableRowElement, Element)
// QueryInterface implementation for HTMLTableRowElement
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(HTMLTableRowElement)
NS_INTERFACE_MAP_END_INHERITING(nsGenericHTMLElement)
NS_IMPL_ELEMENT_CLONE(HTMLTableRowElement)
// protected method
HTMLTableSectionElement*
HTMLTableRowElement::GetSection() const
{
nsIContent* parent = GetParent();
if (parent &&
parent->IsAnyOfHTMLElements(nsGkAtoms::thead,
nsGkAtoms::tbody,
nsGkAtoms::tfoot)) {
return static_cast<HTMLTableSectionElement*>(parent);
}
return nullptr;
}
// protected method
HTMLTableElement*
HTMLTableRowElement::GetTable() const
{
nsIContent* parent = GetParent();
if (!parent) {
return nullptr;
}
// We may not be in a section
HTMLTableElement* table = HTMLTableElement::FromContent(parent);
if (table) {
return table;
}
return HTMLTableElement::FromContentOrNull(parent->GetParent());
}
int32_t
HTMLTableRowElement::RowIndex() const
{
HTMLTableElement* table = GetTable();
if (!table) {
return -1;
}
nsIHTMLCollection* rows = table->Rows();
uint32_t numRows = rows->Length();
for (uint32_t i = 0; i < numRows; i++) {
if (rows->GetElementAt(i) == this) {
return i;
}
}
return -1;
}
int32_t
HTMLTableRowElement::SectionRowIndex() const
{
HTMLTableSectionElement* section = GetSection();
if (!section) {
return -1;
}
nsCOMPtr<nsIHTMLCollection> coll = section->Rows();
uint32_t numRows = coll->Length();
for (uint32_t i = 0; i < numRows; i++) {
if (coll->GetElementAt(i) == this) {
return i;
}
}
return -1;
}
static bool
IsCell(nsIContent *aContent, int32_t aNamespaceID,
nsIAtom* aAtom, void *aData)
{
return aContent->IsAnyOfHTMLElements(nsGkAtoms::td, nsGkAtoms::th);
}
nsIHTMLCollection*
HTMLTableRowElement::Cells()
{
if (!mCells) {
mCells = new nsContentList(this,
IsCell,
nullptr, // destroy func
nullptr, // closure data
false,
nullptr,
kNameSpaceID_XHTML,
false);
}
return mCells;
}
already_AddRefed<nsGenericHTMLElement>
HTMLTableRowElement::InsertCell(int32_t aIndex,
ErrorResult& aError)
{
if (aIndex < -1) {
aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return nullptr;
}
// Make sure mCells is initialized.
nsIHTMLCollection* cells = Cells();
NS_ASSERTION(mCells, "How did that happen?");
nsCOMPtr<nsINode> nextSibling;
// -1 means append, so should use null nextSibling
if (aIndex != -1) {
nextSibling = cells->Item(aIndex);
// Check whether we're inserting past end of list. We want to avoid doing
// this unless we really have to, since this has to walk all our kids. If
// we have a nextSibling, we're clearly not past end of list.
if (!nextSibling) {
uint32_t cellCount = cells->Length();
if (aIndex > int32_t(cellCount)) {
aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return nullptr;
}
}
}
// create the cell
nsRefPtr<mozilla::dom::NodeInfo> nodeInfo;
nsContentUtils::NameChanged(mNodeInfo, nsGkAtoms::td,
getter_AddRefs(nodeInfo));
nsRefPtr<nsGenericHTMLElement> cell =
NS_NewHTMLTableCellElement(nodeInfo.forget());
if (!cell) {
aError.Throw(NS_ERROR_OUT_OF_MEMORY);
return nullptr;
}
nsINode::InsertBefore(*cell, nextSibling, aError);
return cell.forget();
}
void
HTMLTableRowElement::DeleteCell(int32_t aValue, ErrorResult& aError)
{
if (aValue < -1) {
aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
nsIHTMLCollection* cells = Cells();
uint32_t refIndex;
if (aValue == -1) {
refIndex = cells->Length();
if (refIndex == 0) {
return;
}
--refIndex;
}
else {
refIndex = (uint32_t)aValue;
}
nsCOMPtr<nsINode> cell = cells->Item(refIndex);
if (!cell) {
aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
nsINode::RemoveChild(*cell, aError);
}
bool
HTMLTableRowElement::ParseAttribute(int32_t aNamespaceID,
nsIAtom* aAttribute,
const nsAString& aValue,
nsAttrValue& aResult)
{
/*
* ignore these attributes, stored simply as strings
*
* ch
*/
if (aNamespaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::charoff) {
return aResult.ParseIntWithBounds(aValue, 0);
}
if (aAttribute == nsGkAtoms::height) {
return aResult.ParseSpecialIntValue(aValue);
}
if (aAttribute == nsGkAtoms::width) {
return aResult.ParseSpecialIntValue(aValue);
}
if (aAttribute == nsGkAtoms::align) {
return ParseTableCellHAlignValue(aValue, aResult);
}
if (aAttribute == nsGkAtoms::bgcolor) {
return aResult.ParseColor(aValue);
}
if (aAttribute == nsGkAtoms::valign) {
return ParseTableVAlignValue(aValue, aResult);
}
}
return nsGenericHTMLElement::ParseBackgroundAttribute(aNamespaceID,
aAttribute, aValue,
aResult) ||
nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
aResult);
}
void
HTMLTableRowElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Position)) {
// height: value
nsCSSValue* height = aData->ValueForHeight();
if (height->GetUnit() == eCSSUnit_Null) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::height);
if (value && value->Type() == nsAttrValue::eInteger)
height->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
else if (value && value->Type() == nsAttrValue::ePercent)
height->SetPercentValue(value->GetPercentValue());
}
}
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Text)) {
nsCSSValue* textAlign = aData->ValueForTextAlign();
if (textAlign->GetUnit() == eCSSUnit_Null) {
// align: enum
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::align);
if (value && value->Type() == nsAttrValue::eEnum)
textAlign->SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
}
}
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(TextReset)) {
nsCSSValue* verticalAlign = aData->ValueForVerticalAlign();
if (verticalAlign->GetUnit() == eCSSUnit_Null) {
// valign: enum
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::valign);
if (value && value->Type() == nsAttrValue::eEnum)
verticalAlign->SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
}
}
nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aData);
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
}
NS_IMETHODIMP_(bool)
HTMLTableRowElement::IsAttributeMapped(const nsIAtom* aAttribute) const
{
static const MappedAttributeEntry attributes[] = {
{ &nsGkAtoms::align },
{ &nsGkAtoms::valign },
{ &nsGkAtoms::height },
{ nullptr }
};
static const MappedAttributeEntry* const map[] = {
attributes,
sCommonAttributeMap,
sBackgroundAttributeMap,
};
return FindAttributeDependence(aAttribute, map);
}
nsMapRuleToAttributesFunc
HTMLTableRowElement::GetAttributeMappingFunction() const
{
return &MapAttributesIntoRule;
}
} // namespace dom
} // namespace mozilla
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