mirror of
https://github.com/mozilla/gecko-dev.git
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2a1828662f
And fix existing users of course. The frame loader one is the only one slightly scary (but if it causes trouble we could make nsObjectLoadingContent::Unlink a no-op). Differential Revision: https://phabricator.services.mozilla.com/D107269
251 lines
7.3 KiB
C++
251 lines
7.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/HTMLTableRowElement.h"
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#include "mozilla/dom/HTMLTableElement.h"
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#include "mozilla/MappedDeclarations.h"
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#include "nsMappedAttributes.h"
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#include "nsAttrValueInlines.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/HTMLTableRowElementBinding.h"
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#include "nsContentList.h"
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#include "nsContentUtils.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT(TableRow)
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namespace mozilla::dom {
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HTMLTableRowElement::~HTMLTableRowElement() = default;
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JSObject* HTMLTableRowElement::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return HTMLTableRowElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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NS_IMPL_CYCLE_COLLECTION_INHERITED(HTMLTableRowElement, nsGenericHTMLElement,
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mCells)
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NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(HTMLTableRowElement,
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nsGenericHTMLElement)
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NS_IMPL_ELEMENT_CLONE(HTMLTableRowElement)
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// protected method
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HTMLTableSectionElement* HTMLTableRowElement::GetSection() const {
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nsIContent* parent = GetParent();
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if (parent && parent->IsAnyOfHTMLElements(nsGkAtoms::thead, nsGkAtoms::tbody,
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nsGkAtoms::tfoot)) {
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return static_cast<HTMLTableSectionElement*>(parent);
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}
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return nullptr;
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}
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// protected method
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HTMLTableElement* HTMLTableRowElement::GetTable() const {
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nsIContent* parent = GetParent();
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if (!parent) {
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return nullptr;
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}
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// We may not be in a section
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HTMLTableElement* table = HTMLTableElement::FromNode(parent);
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if (table) {
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return table;
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}
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return HTMLTableElement::FromNodeOrNull(parent->GetParent());
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}
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int32_t HTMLTableRowElement::RowIndex() const {
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HTMLTableElement* table = GetTable();
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if (!table) {
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return -1;
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}
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nsIHTMLCollection* rows = table->Rows();
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uint32_t numRows = rows->Length();
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for (uint32_t i = 0; i < numRows; i++) {
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if (rows->GetElementAt(i) == this) {
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return i;
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}
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}
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return -1;
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}
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int32_t HTMLTableRowElement::SectionRowIndex() const {
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HTMLTableSectionElement* section = GetSection();
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if (!section) {
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return -1;
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}
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nsCOMPtr<nsIHTMLCollection> coll = section->Rows();
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uint32_t numRows = coll->Length();
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for (uint32_t i = 0; i < numRows; i++) {
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if (coll->GetElementAt(i) == this) {
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return i;
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}
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}
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return -1;
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}
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static bool IsCell(Element* aElement, int32_t aNamespaceID, nsAtom* aAtom,
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void* aData) {
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return aElement->IsAnyOfHTMLElements(nsGkAtoms::td, nsGkAtoms::th);
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}
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nsIHTMLCollection* HTMLTableRowElement::Cells() {
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if (!mCells) {
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mCells = new nsContentList(this, IsCell,
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nullptr, // destroy func
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nullptr, // closure data
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false, nullptr, kNameSpaceID_XHTML, false);
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}
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return mCells;
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}
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already_AddRefed<nsGenericHTMLElement> HTMLTableRowElement::InsertCell(
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int32_t aIndex, ErrorResult& aError) {
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if (aIndex < -1) {
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aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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return nullptr;
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}
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// Make sure mCells is initialized.
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nsIHTMLCollection* cells = Cells();
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NS_ASSERTION(mCells, "How did that happen?");
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nsCOMPtr<nsINode> nextSibling;
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// -1 means append, so should use null nextSibling
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if (aIndex != -1) {
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nextSibling = cells->Item(aIndex);
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// Check whether we're inserting past end of list. We want to avoid doing
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// this unless we really have to, since this has to walk all our kids. If
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// we have a nextSibling, we're clearly not past end of list.
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if (!nextSibling) {
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uint32_t cellCount = cells->Length();
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if (aIndex > int32_t(cellCount)) {
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aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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return nullptr;
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}
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}
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}
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// create the cell
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RefPtr<mozilla::dom::NodeInfo> nodeInfo;
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nsContentUtils::QNameChanged(mNodeInfo, nsGkAtoms::td,
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getter_AddRefs(nodeInfo));
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RefPtr<nsGenericHTMLElement> cell =
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NS_NewHTMLTableCellElement(nodeInfo.forget());
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if (!cell) {
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aError.Throw(NS_ERROR_OUT_OF_MEMORY);
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return nullptr;
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}
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nsINode::InsertBefore(*cell, nextSibling, aError);
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return cell.forget();
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}
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void HTMLTableRowElement::DeleteCell(int32_t aValue, ErrorResult& aError) {
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if (aValue < -1) {
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aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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return;
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}
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nsIHTMLCollection* cells = Cells();
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uint32_t refIndex;
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if (aValue == -1) {
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refIndex = cells->Length();
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if (refIndex == 0) {
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return;
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}
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--refIndex;
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} else {
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refIndex = (uint32_t)aValue;
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}
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nsCOMPtr<nsINode> cell = cells->Item(refIndex);
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if (!cell) {
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aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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return;
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}
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nsINode::RemoveChild(*cell, aError);
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}
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bool HTMLTableRowElement::ParseAttribute(int32_t aNamespaceID,
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nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult) {
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/*
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* ignore these attributes, stored simply as strings
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*
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* ch
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*/
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if (aNamespaceID == kNameSpaceID_None) {
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if (aAttribute == nsGkAtoms::height) {
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// Per spec should be ParseNonzeroHTMLDimension, but no browsers do that.
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// See https://github.com/whatwg/html/issues/4716
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return aResult.ParseHTMLDimension(aValue);
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}
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if (aAttribute == nsGkAtoms::align) {
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return ParseTableCellHAlignValue(aValue, aResult);
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}
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if (aAttribute == nsGkAtoms::bgcolor) {
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return aResult.ParseColor(aValue);
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}
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if (aAttribute == nsGkAtoms::valign) {
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return ParseTableVAlignValue(aValue, aResult);
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}
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}
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return nsGenericHTMLElement::ParseBackgroundAttribute(
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aNamespaceID, aAttribute, aValue, aResult) ||
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nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aMaybeScriptedPrincipal, aResult);
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}
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void HTMLTableRowElement::MapAttributesIntoRule(
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const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
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nsGenericHTMLElement::MapHeightAttributeInto(aAttributes, aDecls);
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nsGenericHTMLElement::MapDivAlignAttributeInto(aAttributes, aDecls);
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nsGenericHTMLElement::MapVAlignAttributeInto(aAttributes, aDecls);
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nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aDecls);
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);
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}
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NS_IMETHODIMP_(bool)
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HTMLTableRowElement::IsAttributeMapped(const nsAtom* aAttribute) const {
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static const MappedAttributeEntry attributes[] = {
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{nsGkAtoms::align}, {nsGkAtoms::valign}, {nsGkAtoms::height}, {nullptr}};
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static const MappedAttributeEntry* const map[] = {
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attributes,
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sCommonAttributeMap,
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sBackgroundAttributeMap,
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};
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return FindAttributeDependence(aAttribute, map);
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}
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nsMapRuleToAttributesFunc HTMLTableRowElement::GetAttributeMappingFunction()
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const {
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return &MapAttributesIntoRule;
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}
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} // namespace mozilla::dom
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