зеркало из https://github.com/mozilla/gecko-dev.git
761 строка
30 KiB
C++
761 строка
30 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "HTMLEditUtils.h"
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#include "CSSEditUtils.h" // for CSSEditUtils
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#include "mozilla/ArrayUtils.h" // for ArrayLength
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#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc.
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#include "mozilla/EditAction.h" // for EditAction
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#include "mozilla/EditorBase.h" // for EditorBase
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#include "mozilla/dom/HTMLAnchorElement.h"
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#include "mozilla/dom/Element.h" // for Element, nsINode
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#include "nsAString.h" // for nsAString::IsEmpty
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#include "nsAtom.h" // for nsAtom
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#include "nsCaseTreatment.h"
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#include "nsCOMPtr.h" // for nsCOMPtr, operator==, etc.
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#include "nsDebug.h" // for NS_ASSERTION, etc.
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#include "nsElementTable.h" // for nsHTMLElement
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#include "nsError.h" // for NS_SUCCEEDED
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#include "nsGkAtoms.h" // for nsGkAtoms, nsGkAtoms::a, etc.
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#include "nsHTMLTags.h"
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#include "nsLiteralString.h" // for NS_LITERAL_STRING
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#include "nsNameSpaceManager.h" // for kNameSpaceID_None
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#include "nsString.h" // for nsAutoString
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namespace mozilla {
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bool HTMLEditUtils::CanContentsBeJoined(const nsIContent& aLeftContent,
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const nsIContent& aRightContent,
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StyleDifference aStyleDifference) {
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if (aLeftContent.NodeInfo()->NameAtom() !=
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aRightContent.NodeInfo()->NameAtom()) {
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return false;
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}
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if (aStyleDifference == StyleDifference::Ignore ||
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!aLeftContent.IsElement()) {
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return true;
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}
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if (aStyleDifference == StyleDifference::CompareIfSpanElements &&
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!aLeftContent.IsHTMLElement(nsGkAtoms::span)) {
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return true;
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}
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MOZ_DIAGNOSTIC_ASSERT(aRightContent.IsElement());
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return CSSEditUtils::DoElementsHaveSameStyle(*aLeftContent.AsElement(),
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*aRightContent.AsElement());
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}
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bool HTMLEditUtils::IsBlockElement(const nsIContent& aContent) {
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if (!aContent.IsElement()) {
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return false;
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}
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if (aContent.IsHTMLElement(nsGkAtoms::br)) { // shortcut for TextEditor
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MOZ_ASSERT(!nsHTMLElement::IsBlock(nsHTMLTags::AtomTagToId(nsGkAtoms::br)));
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return false;
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}
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// We want to treat these as block nodes even though nsHTMLElement says
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// they're not.
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if (aContent.IsAnyOfHTMLElements(
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nsGkAtoms::body, nsGkAtoms::head, nsGkAtoms::tbody, nsGkAtoms::thead,
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nsGkAtoms::tfoot, nsGkAtoms::tr, nsGkAtoms::th, nsGkAtoms::td,
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nsGkAtoms::dt, nsGkAtoms::dd)) {
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return true;
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}
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return nsHTMLElement::IsBlock(
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nsHTMLTags::AtomTagToId(aContent.NodeInfo()->NameAtom()));
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}
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/**
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* IsInlineStyle() returns true if aNode is an inline style.
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*/
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bool HTMLEditUtils::IsInlineStyle(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(
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nsGkAtoms::b, nsGkAtoms::i, nsGkAtoms::u, nsGkAtoms::tt, nsGkAtoms::s,
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nsGkAtoms::strike, nsGkAtoms::big, nsGkAtoms::small, nsGkAtoms::sub,
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nsGkAtoms::sup, nsGkAtoms::font);
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}
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bool HTMLEditUtils::IsRemovableInlineStyleElement(Element& aElement) {
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if (!aElement.IsHTMLElement()) {
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return false;
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}
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// https://w3c.github.io/editing/execCommand.html#removeformat-candidate
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if (aElement.IsAnyOfHTMLElements(
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nsGkAtoms::abbr, // Chrome ignores, but does not make sense.
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nsGkAtoms::acronym, nsGkAtoms::b,
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nsGkAtoms::bdi, // Chrome ignores, but does not make sense.
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nsGkAtoms::bdo, nsGkAtoms::big, nsGkAtoms::cite, nsGkAtoms::code,
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// nsGkAtoms::del, Chrome ignores, but does not make sense but
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// execCommand unofficial draft excludes this. Spec issue:
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// https://github.com/w3c/editing/issues/192
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nsGkAtoms::dfn, nsGkAtoms::em, nsGkAtoms::font, nsGkAtoms::i,
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nsGkAtoms::ins, nsGkAtoms::kbd,
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nsGkAtoms::mark, // Chrome ignores, but does not make sense.
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nsGkAtoms::nobr, nsGkAtoms::q, nsGkAtoms::s, nsGkAtoms::samp,
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nsGkAtoms::small, nsGkAtoms::span, nsGkAtoms::strike,
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nsGkAtoms::strong, nsGkAtoms::sub, nsGkAtoms::sup, nsGkAtoms::tt,
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nsGkAtoms::u, nsGkAtoms::var)) {
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return true;
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}
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// If it's a <blink> element, we can remove it.
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nsAutoString tagName;
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aElement.GetTagName(tagName);
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return tagName.LowerCaseEqualsASCII("blink");
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}
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/**
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* IsFormatNode() returns true if aNode is a format node.
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*/
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bool HTMLEditUtils::IsFormatNode(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(
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nsGkAtoms::p, nsGkAtoms::pre, nsGkAtoms::h1, nsGkAtoms::h2, nsGkAtoms::h3,
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nsGkAtoms::h4, nsGkAtoms::h5, nsGkAtoms::h6, nsGkAtoms::address);
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}
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/**
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* IsNodeThatCanOutdent() returns true if aNode is a list, list item or
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* blockquote.
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*/
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bool HTMLEditUtils::IsNodeThatCanOutdent(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(nsGkAtoms::ul, nsGkAtoms::ol, nsGkAtoms::dl,
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nsGkAtoms::li, nsGkAtoms::dd, nsGkAtoms::dt,
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nsGkAtoms::blockquote);
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}
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/**
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* IsHeader() returns true if aNode is an html header.
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*/
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bool HTMLEditUtils::IsHeader(nsINode& aNode) {
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return aNode.IsAnyOfHTMLElements(nsGkAtoms::h1, nsGkAtoms::h2, nsGkAtoms::h3,
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nsGkAtoms::h4, nsGkAtoms::h5, nsGkAtoms::h6);
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}
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/**
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* IsListItem() returns true if aNode is an html list item.
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*/
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bool HTMLEditUtils::IsListItem(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(nsGkAtoms::li, nsGkAtoms::dd,
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nsGkAtoms::dt);
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}
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/**
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* IsTableElement() returns true if aNode is an html table, td, tr, ...
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*/
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bool HTMLEditUtils::IsTableElement(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(
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nsGkAtoms::table, nsGkAtoms::tr, nsGkAtoms::td, nsGkAtoms::th,
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nsGkAtoms::thead, nsGkAtoms::tfoot, nsGkAtoms::tbody, nsGkAtoms::caption);
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}
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/**
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* IsTableElementButNotTable() returns true if aNode is an html td, tr, ...
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* (doesn't include table)
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*/
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bool HTMLEditUtils::IsTableElementButNotTable(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(nsGkAtoms::tr, nsGkAtoms::td, nsGkAtoms::th,
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nsGkAtoms::thead, nsGkAtoms::tfoot,
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nsGkAtoms::tbody, nsGkAtoms::caption);
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}
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/**
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* IsTable() returns true if aNode is an html table.
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*/
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bool HTMLEditUtils::IsTable(nsINode* aNode) {
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return aNode && aNode->IsHTMLElement(nsGkAtoms::table);
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}
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/**
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* IsTableRow() returns true if aNode is an html tr.
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*/
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bool HTMLEditUtils::IsTableRow(nsINode* aNode) {
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return aNode && aNode->IsHTMLElement(nsGkAtoms::tr);
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}
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/**
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* IsTableCell() returns true if aNode is an html td or th.
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*/
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bool HTMLEditUtils::IsTableCell(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(nsGkAtoms::td, nsGkAtoms::th);
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}
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/**
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* IsTableCellOrCaption() returns true if aNode is an html td or th or caption.
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*/
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bool HTMLEditUtils::IsTableCellOrCaption(nsINode& aNode) {
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return aNode.IsAnyOfHTMLElements(nsGkAtoms::td, nsGkAtoms::th,
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nsGkAtoms::caption);
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}
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/**
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* IsList() returns true if aNode is an html list.
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*/
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bool HTMLEditUtils::IsList(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(nsGkAtoms::ul, nsGkAtoms::ol,
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nsGkAtoms::dl);
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}
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/**
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* IsPre() returns true if aNode is an html pre node.
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*/
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bool HTMLEditUtils::IsPre(nsINode* aNode) {
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return aNode && aNode->IsHTMLElement(nsGkAtoms::pre);
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}
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/**
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* IsImage() returns true if aNode is an html image node.
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*/
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bool HTMLEditUtils::IsImage(nsINode* aNode) {
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return aNode && aNode->IsHTMLElement(nsGkAtoms::img);
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}
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bool HTMLEditUtils::IsLink(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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if (!aNode->IsContent()) {
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return false;
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}
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RefPtr<dom::HTMLAnchorElement> anchor =
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dom::HTMLAnchorElement::FromNodeOrNull(aNode->AsContent());
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if (!anchor) {
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return false;
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}
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nsAutoString tmpText;
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anchor->GetHref(tmpText);
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return !tmpText.IsEmpty();
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}
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bool HTMLEditUtils::IsNamedAnchor(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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if (!aNode->IsHTMLElement(nsGkAtoms::a)) {
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return false;
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}
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nsAutoString text;
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return aNode->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::name,
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text) &&
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!text.IsEmpty();
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}
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/**
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* IsMozDiv() returns true if aNode is an html div node with |type = _moz|.
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*/
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bool HTMLEditUtils::IsMozDiv(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsHTMLElement(nsGkAtoms::div) &&
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aNode->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
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NS_LITERAL_STRING("_moz"),
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eIgnoreCase);
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}
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/**
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* IsMailCite() returns true if aNode is an html blockquote with |type=cite|.
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*/
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bool HTMLEditUtils::IsMailCite(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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// don't ask me why, but our html mailcites are id'd by "type=cite"...
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if (aNode->IsElement() &&
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aNode->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
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NS_LITERAL_STRING("cite"), eIgnoreCase)) {
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return true;
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}
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// ... but our plaintext mailcites by "_moz_quote=true". go figure.
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if (aNode->IsElement() &&
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aNode->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozquote,
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NS_LITERAL_STRING("true"), eIgnoreCase)) {
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return true;
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}
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return false;
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}
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/**
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* IsFormWidget() returns true if aNode is a form widget of some kind.
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*/
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bool HTMLEditUtils::IsFormWidget(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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return aNode->IsAnyOfHTMLElements(nsGkAtoms::textarea, nsGkAtoms::select,
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nsGkAtoms::button, nsGkAtoms::output,
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nsGkAtoms::progress, nsGkAtoms::meter,
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nsGkAtoms::input);
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}
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bool HTMLEditUtils::SupportsAlignAttr(nsINode& aNode) {
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return aNode.IsAnyOfHTMLElements(
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nsGkAtoms::hr, nsGkAtoms::table, nsGkAtoms::tbody, nsGkAtoms::tfoot,
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nsGkAtoms::thead, nsGkAtoms::tr, nsGkAtoms::td, nsGkAtoms::th,
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nsGkAtoms::div, nsGkAtoms::p, nsGkAtoms::h1, nsGkAtoms::h2, nsGkAtoms::h3,
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nsGkAtoms::h4, nsGkAtoms::h5, nsGkAtoms::h6);
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}
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// We use bitmasks to test containment of elements. Elements are marked to be
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// in certain groups by setting the mGroup member of the nsElementInfo struct
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// to the corresponding GROUP_ values (OR'ed together). Similarly, elements are
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// marked to allow containment of certain groups by setting the
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// mCanContainGroups member of the nsElementInfo struct to the corresponding
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// GROUP_ values (OR'ed together).
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// Testing containment then simply consists of checking whether the
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// mCanContainGroups bitmask of an element and the mGroup bitmask of a
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// potential child overlap.
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#define GROUP_NONE 0
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// body, head, html
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#define GROUP_TOPLEVEL (1 << 1)
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// base, link, meta, script, style, title
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#define GROUP_HEAD_CONTENT (1 << 2)
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// b, big, i, s, small, strike, tt, u
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#define GROUP_FONTSTYLE (1 << 3)
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// abbr, acronym, cite, code, datalist, del, dfn, em, ins, kbd, mark, rb, rp
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// rt, rtc, ruby, samp, strong, var
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#define GROUP_PHRASE (1 << 4)
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// a, applet, basefont, bdi, bdo, br, font, iframe, img, map, meter, object,
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// output, picture, progress, q, script, span, sub, sup
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#define GROUP_SPECIAL (1 << 5)
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// button, form, input, label, select, textarea
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#define GROUP_FORMCONTROL (1 << 6)
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// address, applet, article, aside, blockquote, button, center, del, details,
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// dialog, dir, div, dl, fieldset, figure, footer, form, h1, h2, h3, h4, h5,
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// h6, header, hgroup, hr, iframe, ins, main, map, menu, nav, noframes,
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// noscript, object, ol, p, pre, table, section, summary, ul
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#define GROUP_BLOCK (1 << 7)
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// frame, frameset
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#define GROUP_FRAME (1 << 8)
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// col, tbody
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#define GROUP_TABLE_CONTENT (1 << 9)
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// tr
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#define GROUP_TBODY_CONTENT (1 << 10)
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// td, th
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#define GROUP_TR_CONTENT (1 << 11)
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// col
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#define GROUP_COLGROUP_CONTENT (1 << 12)
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// param
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#define GROUP_OBJECT_CONTENT (1 << 13)
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// li
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#define GROUP_LI (1 << 14)
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// area
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#define GROUP_MAP_CONTENT (1 << 15)
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// optgroup, option
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#define GROUP_SELECT_CONTENT (1 << 16)
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// option
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#define GROUP_OPTIONS (1 << 17)
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// dd, dt
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#define GROUP_DL_CONTENT (1 << 18)
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// p
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#define GROUP_P (1 << 19)
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// text, white-space, newline, comment
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#define GROUP_LEAF (1 << 20)
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// XXX This is because the editor does sublists illegally.
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// ol, ul
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#define GROUP_OL_UL (1 << 21)
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// h1, h2, h3, h4, h5, h6
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#define GROUP_HEADING (1 << 22)
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// figcaption
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#define GROUP_FIGCAPTION (1 << 23)
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// picture members (img, source)
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#define GROUP_PICTURE_CONTENT (1 << 24)
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#define GROUP_INLINE_ELEMENT \
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(GROUP_FONTSTYLE | GROUP_PHRASE | GROUP_SPECIAL | GROUP_FORMCONTROL | \
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GROUP_LEAF)
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#define GROUP_FLOW_ELEMENT (GROUP_INLINE_ELEMENT | GROUP_BLOCK)
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struct ElementInfo final {
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#ifdef DEBUG
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nsHTMLTag mTag;
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#endif
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uint32_t mGroup;
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uint32_t mCanContainGroups;
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bool mIsContainer;
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bool mCanContainSelf;
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};
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#ifdef DEBUG
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# define ELEM(_tag, _isContainer, _canContainSelf, _group, _canContainGroups) \
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{ \
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eHTMLTag_##_tag, _group, _canContainGroups, _isContainer, \
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_canContainSelf \
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}
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#else
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# define ELEM(_tag, _isContainer, _canContainSelf, _group, _canContainGroups) \
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{ _group, _canContainGroups, _isContainer, _canContainSelf }
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#endif
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static const ElementInfo kElements[eHTMLTag_userdefined] = {
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ELEM(a, true, false, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
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ELEM(abbr, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
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ELEM(acronym, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
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ELEM(address, true, true, GROUP_BLOCK, GROUP_INLINE_ELEMENT | GROUP_P),
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// While applet is no longer a valid tag, removing it here breaks the editor
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// (compiles, but causes many tests to fail in odd ways). This list is
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// tracked against the main HTML Tag list, so any changes will require more
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// than just removing entries.
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ELEM(applet, true, true, GROUP_SPECIAL | GROUP_BLOCK,
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GROUP_FLOW_ELEMENT | GROUP_OBJECT_CONTENT),
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ELEM(area, false, false, GROUP_MAP_CONTENT, GROUP_NONE),
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ELEM(article, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
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ELEM(aside, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
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ELEM(audio, false, false, GROUP_NONE, GROUP_NONE),
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ELEM(b, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
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ELEM(base, false, false, GROUP_HEAD_CONTENT, GROUP_NONE),
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ELEM(basefont, false, false, GROUP_SPECIAL, GROUP_NONE),
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ELEM(bdi, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
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ELEM(bdo, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(bgsound, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(big, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(blockquote, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(body, true, true, GROUP_TOPLEVEL, GROUP_FLOW_ELEMENT),
|
|
ELEM(br, false, false, GROUP_SPECIAL, GROUP_NONE),
|
|
ELEM(button, true, true, GROUP_FORMCONTROL | GROUP_BLOCK,
|
|
GROUP_FLOW_ELEMENT),
|
|
ELEM(canvas, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(caption, true, true, GROUP_NONE, GROUP_INLINE_ELEMENT),
|
|
ELEM(center, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(cite, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(code, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(col, false, false, GROUP_TABLE_CONTENT | GROUP_COLGROUP_CONTENT,
|
|
GROUP_NONE),
|
|
ELEM(colgroup, true, false, GROUP_NONE, GROUP_COLGROUP_CONTENT),
|
|
ELEM(data, true, false, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(datalist, true, false, GROUP_PHRASE,
|
|
GROUP_OPTIONS | GROUP_INLINE_ELEMENT),
|
|
ELEM(dd, true, false, GROUP_DL_CONTENT, GROUP_FLOW_ELEMENT),
|
|
ELEM(del, true, true, GROUP_PHRASE | GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(details, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(dfn, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(dialog, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(dir, true, false, GROUP_BLOCK, GROUP_LI),
|
|
ELEM(div, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(dl, true, false, GROUP_BLOCK, GROUP_DL_CONTENT),
|
|
ELEM(dt, true, true, GROUP_DL_CONTENT, GROUP_INLINE_ELEMENT),
|
|
ELEM(em, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(embed, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(fieldset, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(figcaption, true, false, GROUP_FIGCAPTION, GROUP_FLOW_ELEMENT),
|
|
ELEM(figure, true, true, GROUP_BLOCK,
|
|
GROUP_FLOW_ELEMENT | GROUP_FIGCAPTION),
|
|
ELEM(font, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(footer, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(form, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(frame, false, false, GROUP_FRAME, GROUP_NONE),
|
|
ELEM(frameset, true, true, GROUP_FRAME, GROUP_FRAME),
|
|
ELEM(h1, true, false, GROUP_BLOCK | GROUP_HEADING, GROUP_INLINE_ELEMENT),
|
|
ELEM(h2, true, false, GROUP_BLOCK | GROUP_HEADING, GROUP_INLINE_ELEMENT),
|
|
ELEM(h3, true, false, GROUP_BLOCK | GROUP_HEADING, GROUP_INLINE_ELEMENT),
|
|
ELEM(h4, true, false, GROUP_BLOCK | GROUP_HEADING, GROUP_INLINE_ELEMENT),
|
|
ELEM(h5, true, false, GROUP_BLOCK | GROUP_HEADING, GROUP_INLINE_ELEMENT),
|
|
ELEM(h6, true, false, GROUP_BLOCK | GROUP_HEADING, GROUP_INLINE_ELEMENT),
|
|
ELEM(head, true, false, GROUP_TOPLEVEL, GROUP_HEAD_CONTENT),
|
|
ELEM(header, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(hgroup, true, false, GROUP_BLOCK, GROUP_HEADING),
|
|
ELEM(hr, false, false, GROUP_BLOCK, GROUP_NONE),
|
|
ELEM(html, true, false, GROUP_TOPLEVEL, GROUP_TOPLEVEL),
|
|
ELEM(i, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(iframe, true, true, GROUP_SPECIAL | GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(image, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(img, false, false, GROUP_SPECIAL | GROUP_PICTURE_CONTENT, GROUP_NONE),
|
|
ELEM(input, false, false, GROUP_FORMCONTROL, GROUP_NONE),
|
|
ELEM(ins, true, true, GROUP_PHRASE | GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(kbd, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(keygen, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(label, true, false, GROUP_FORMCONTROL, GROUP_INLINE_ELEMENT),
|
|
ELEM(legend, true, true, GROUP_NONE, GROUP_INLINE_ELEMENT),
|
|
ELEM(li, true, false, GROUP_LI, GROUP_FLOW_ELEMENT),
|
|
ELEM(link, false, false, GROUP_HEAD_CONTENT, GROUP_NONE),
|
|
ELEM(listing, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(main, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(map, true, true, GROUP_SPECIAL, GROUP_BLOCK | GROUP_MAP_CONTENT),
|
|
ELEM(mark, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(marquee, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(menu, true, true, GROUP_BLOCK, GROUP_LI | GROUP_FLOW_ELEMENT),
|
|
ELEM(menuitem, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(meta, false, false, GROUP_HEAD_CONTENT, GROUP_NONE),
|
|
ELEM(meter, true, false, GROUP_SPECIAL, GROUP_FLOW_ELEMENT),
|
|
ELEM(multicol, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(nav, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(nobr, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(noembed, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(noframes, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(noscript, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(object, true, true, GROUP_SPECIAL | GROUP_BLOCK,
|
|
GROUP_FLOW_ELEMENT | GROUP_OBJECT_CONTENT),
|
|
// XXX Can contain self and ul because editor does sublists illegally.
|
|
ELEM(ol, true, true, GROUP_BLOCK | GROUP_OL_UL, GROUP_LI | GROUP_OL_UL),
|
|
ELEM(optgroup, true, false, GROUP_SELECT_CONTENT, GROUP_OPTIONS),
|
|
ELEM(option, true, false, GROUP_SELECT_CONTENT | GROUP_OPTIONS, GROUP_LEAF),
|
|
ELEM(output, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(p, true, false, GROUP_BLOCK | GROUP_P, GROUP_INLINE_ELEMENT),
|
|
ELEM(param, false, false, GROUP_OBJECT_CONTENT, GROUP_NONE),
|
|
ELEM(picture, true, false, GROUP_SPECIAL, GROUP_PICTURE_CONTENT),
|
|
ELEM(plaintext, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(pre, true, true, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
|
|
ELEM(progress, true, false, GROUP_SPECIAL, GROUP_FLOW_ELEMENT),
|
|
ELEM(q, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(rb, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(rp, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(rt, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(rtc, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(ruby, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(s, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(samp, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(script, true, false, GROUP_HEAD_CONTENT | GROUP_SPECIAL, GROUP_LEAF),
|
|
ELEM(section, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(select, true, false, GROUP_FORMCONTROL, GROUP_SELECT_CONTENT),
|
|
ELEM(small, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(slot, true, false, GROUP_NONE, GROUP_FLOW_ELEMENT),
|
|
ELEM(source, false, false, GROUP_PICTURE_CONTENT, GROUP_NONE),
|
|
ELEM(span, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(strike, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(strong, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(style, true, false, GROUP_HEAD_CONTENT, GROUP_LEAF),
|
|
ELEM(sub, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(summary, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(sup, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(table, true, false, GROUP_BLOCK, GROUP_TABLE_CONTENT),
|
|
ELEM(tbody, true, false, GROUP_TABLE_CONTENT, GROUP_TBODY_CONTENT),
|
|
ELEM(td, true, false, GROUP_TR_CONTENT, GROUP_FLOW_ELEMENT),
|
|
ELEM(textarea, true, false, GROUP_FORMCONTROL, GROUP_LEAF),
|
|
ELEM(tfoot, true, false, GROUP_NONE, GROUP_TBODY_CONTENT),
|
|
ELEM(th, true, false, GROUP_TR_CONTENT, GROUP_FLOW_ELEMENT),
|
|
ELEM(thead, true, false, GROUP_NONE, GROUP_TBODY_CONTENT),
|
|
ELEM(template, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(time, true, false, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(title, true, false, GROUP_HEAD_CONTENT, GROUP_LEAF),
|
|
ELEM(tr, true, false, GROUP_TBODY_CONTENT, GROUP_TR_CONTENT),
|
|
ELEM(track, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(tt, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(u, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
// XXX Can contain self and ol because editor does sublists illegally.
|
|
ELEM(ul, true, true, GROUP_BLOCK | GROUP_OL_UL, GROUP_LI | GROUP_OL_UL),
|
|
ELEM(var, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(video, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(wbr, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(xmp, false, false, GROUP_NONE, GROUP_NONE),
|
|
|
|
// These aren't elements.
|
|
ELEM(text, false, false, GROUP_LEAF, GROUP_NONE),
|
|
ELEM(whitespace, false, false, GROUP_LEAF, GROUP_NONE),
|
|
ELEM(newline, false, false, GROUP_LEAF, GROUP_NONE),
|
|
ELEM(comment, false, false, GROUP_LEAF, GROUP_NONE),
|
|
ELEM(entity, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(doctypeDecl, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(markupDecl, false, false, GROUP_NONE, GROUP_NONE),
|
|
ELEM(instruction, false, false, GROUP_NONE, GROUP_NONE),
|
|
|
|
ELEM(userdefined, true, false, GROUP_NONE, GROUP_FLOW_ELEMENT)};
|
|
|
|
bool HTMLEditUtils::CanNodeContain(nsHTMLTag aParentTagId,
|
|
nsHTMLTag aChildTagId) {
|
|
NS_ASSERTION(
|
|
aParentTagId > eHTMLTag_unknown && aParentTagId <= eHTMLTag_userdefined,
|
|
"aParentTagId out of range!");
|
|
NS_ASSERTION(
|
|
aChildTagId > eHTMLTag_unknown && aChildTagId <= eHTMLTag_userdefined,
|
|
"aChildTagId out of range!");
|
|
|
|
#ifdef DEBUG
|
|
static bool checked = false;
|
|
if (!checked) {
|
|
checked = true;
|
|
int32_t i;
|
|
for (i = 1; i <= eHTMLTag_userdefined; ++i) {
|
|
NS_ASSERTION(kElements[i - 1].mTag == i,
|
|
"You need to update kElements (missing tags).");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Special-case button.
|
|
if (aParentTagId == eHTMLTag_button) {
|
|
static const nsHTMLTag kButtonExcludeKids[] = {
|
|
eHTMLTag_a, eHTMLTag_fieldset, eHTMLTag_form, eHTMLTag_iframe,
|
|
eHTMLTag_input, eHTMLTag_select, eHTMLTag_textarea};
|
|
|
|
uint32_t j;
|
|
for (j = 0; j < ArrayLength(kButtonExcludeKids); ++j) {
|
|
if (kButtonExcludeKids[j] == aChildTagId) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Deprecated elements.
|
|
if (aChildTagId == eHTMLTag_bgsound) {
|
|
return false;
|
|
}
|
|
|
|
// Bug #67007, dont strip userdefined tags.
|
|
if (aChildTagId == eHTMLTag_userdefined) {
|
|
return true;
|
|
}
|
|
|
|
const ElementInfo& parent = kElements[aParentTagId - 1];
|
|
if (aParentTagId == aChildTagId) {
|
|
return parent.mCanContainSelf;
|
|
}
|
|
|
|
const ElementInfo& child = kElements[aChildTagId - 1];
|
|
return !!(parent.mCanContainGroups & child.mGroup);
|
|
}
|
|
|
|
bool HTMLEditUtils::IsContainerNode(nsHTMLTag aTagId) {
|
|
NS_ASSERTION(aTagId > eHTMLTag_unknown && aTagId <= eHTMLTag_userdefined,
|
|
"aTagId out of range!");
|
|
|
|
return kElements[aTagId - 1].mIsContainer;
|
|
}
|
|
|
|
bool HTMLEditUtils::IsNonListSingleLineContainer(nsINode& aNode) {
|
|
return aNode.IsAnyOfHTMLElements(
|
|
nsGkAtoms::address, nsGkAtoms::div, nsGkAtoms::h1, nsGkAtoms::h2,
|
|
nsGkAtoms::h3, nsGkAtoms::h4, nsGkAtoms::h5, nsGkAtoms::h6,
|
|
nsGkAtoms::listing, nsGkAtoms::p, nsGkAtoms::pre, nsGkAtoms::xmp);
|
|
}
|
|
|
|
bool HTMLEditUtils::IsSingleLineContainer(nsINode& aNode) {
|
|
return IsNonListSingleLineContainer(aNode) ||
|
|
aNode.IsAnyOfHTMLElements(nsGkAtoms::li, nsGkAtoms::dt, nsGkAtoms::dd);
|
|
}
|
|
|
|
EditAction HTMLEditUtils::GetEditActionForInsert(const nsAtom& aTagName) {
|
|
// This method may be in a hot path. So, return only necessary
|
|
// EditAction::eInsert*Element.
|
|
if (&aTagName == nsGkAtoms::ul) {
|
|
// For InputEvent.inputType, "insertUnorderedList".
|
|
return EditAction::eInsertUnorderedListElement;
|
|
}
|
|
if (&aTagName == nsGkAtoms::ol) {
|
|
// For InputEvent.inputType, "insertOrderedList".
|
|
return EditAction::eInsertOrderedListElement;
|
|
}
|
|
if (&aTagName == nsGkAtoms::hr) {
|
|
// For InputEvent.inputType, "insertHorizontalRule".
|
|
return EditAction::eInsertHorizontalRuleElement;
|
|
}
|
|
return EditAction::eInsertNode;
|
|
}
|
|
|
|
EditAction HTMLEditUtils::GetEditActionForRemoveList(const nsAtom& aTagName) {
|
|
// This method may be in a hot path. So, return only necessary
|
|
// EditAction::eRemove*Element.
|
|
if (&aTagName == nsGkAtoms::ul) {
|
|
// For InputEvent.inputType, "insertUnorderedList".
|
|
return EditAction::eRemoveUnorderedListElement;
|
|
}
|
|
if (&aTagName == nsGkAtoms::ol) {
|
|
// For InputEvent.inputType, "insertOrderedList".
|
|
return EditAction::eRemoveOrderedListElement;
|
|
}
|
|
return EditAction::eRemoveListElement;
|
|
}
|
|
|
|
EditAction HTMLEditUtils::GetEditActionForInsert(const Element& aElement) {
|
|
return GetEditActionForInsert(*aElement.NodeInfo()->NameAtom());
|
|
}
|
|
|
|
EditAction HTMLEditUtils::GetEditActionForFormatText(const nsAtom& aProperty,
|
|
const nsAtom* aAttribute,
|
|
bool aToSetStyle) {
|
|
// This method may be in a hot path. So, return only necessary
|
|
// EditAction::eSet*Property or EditAction::eRemove*Property.
|
|
if (&aProperty == nsGkAtoms::b) {
|
|
return aToSetStyle ? EditAction::eSetFontWeightProperty
|
|
: EditAction::eRemoveFontWeightProperty;
|
|
}
|
|
if (&aProperty == nsGkAtoms::i) {
|
|
return aToSetStyle ? EditAction::eSetTextStyleProperty
|
|
: EditAction::eRemoveTextStyleProperty;
|
|
}
|
|
if (&aProperty == nsGkAtoms::u) {
|
|
return aToSetStyle ? EditAction::eSetTextDecorationPropertyUnderline
|
|
: EditAction::eRemoveTextDecorationPropertyUnderline;
|
|
}
|
|
if (&aProperty == nsGkAtoms::strike) {
|
|
return aToSetStyle ? EditAction::eSetTextDecorationPropertyLineThrough
|
|
: EditAction::eRemoveTextDecorationPropertyLineThrough;
|
|
}
|
|
if (&aProperty == nsGkAtoms::sup) {
|
|
return aToSetStyle ? EditAction::eSetVerticalAlignPropertySuper
|
|
: EditAction::eRemoveVerticalAlignPropertySuper;
|
|
}
|
|
if (&aProperty == nsGkAtoms::sub) {
|
|
return aToSetStyle ? EditAction::eSetVerticalAlignPropertySub
|
|
: EditAction::eRemoveVerticalAlignPropertySub;
|
|
}
|
|
if (&aProperty == nsGkAtoms::font) {
|
|
if (aAttribute == nsGkAtoms::face) {
|
|
return aToSetStyle ? EditAction::eSetFontFamilyProperty
|
|
: EditAction::eRemoveFontFamilyProperty;
|
|
}
|
|
if (aAttribute == nsGkAtoms::color) {
|
|
return aToSetStyle ? EditAction::eSetColorProperty
|
|
: EditAction::eRemoveColorProperty;
|
|
}
|
|
if (aAttribute == nsGkAtoms::bgcolor) {
|
|
return aToSetStyle ? EditAction::eSetBackgroundColorPropertyInline
|
|
: EditAction::eRemoveBackgroundColorPropertyInline;
|
|
}
|
|
}
|
|
return aToSetStyle ? EditAction::eSetInlineStyleProperty
|
|
: EditAction::eRemoveInlineStyleProperty;
|
|
}
|
|
|
|
EditAction HTMLEditUtils::GetEditActionForAlignment(
|
|
const nsAString& aAlignType) {
|
|
// This method may be in a hot path. So, return only necessary
|
|
// EditAction::eAlign*.
|
|
if (aAlignType.EqualsLiteral("left")) {
|
|
return EditAction::eAlignLeft;
|
|
}
|
|
if (aAlignType.EqualsLiteral("right")) {
|
|
return EditAction::eAlignRight;
|
|
}
|
|
if (aAlignType.EqualsLiteral("center")) {
|
|
return EditAction::eAlignCenter;
|
|
}
|
|
if (aAlignType.EqualsLiteral("justify")) {
|
|
return EditAction::eJustify;
|
|
}
|
|
return EditAction::eSetAlignment;
|
|
}
|
|
|
|
} // namespace mozilla
|