mirror of
https://github.com/mozilla/gecko-dev.git
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767 lines
27 KiB
C++
767 lines
27 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsHTMLEditUtils.h"
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#include "nsTextEditUtils.h"
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#include "nsString.h"
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#include "nsUnicharUtils.h"
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#include "nsEditor.h"
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#include "nsEditProperty.h"
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#include "nsIAtom.h"
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#include "nsIDOMNode.h"
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#include "nsIContent.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMHTMLAnchorElement.h"
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#include "nsHTMLTags.h"
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///////////////////////////////////////////////////////////////////////////
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//
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PRBool
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nsHTMLEditUtils::IsBig(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::big);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsInlineStyle true if node is an inline style
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//
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PRBool
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nsHTMLEditUtils::IsInlineStyle(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsInlineStyle");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::b)
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|| (nodeAtom == nsEditProperty::i)
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|| (nodeAtom == nsEditProperty::u)
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|| (nodeAtom == nsEditProperty::tt)
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|| (nodeAtom == nsEditProperty::s)
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|| (nodeAtom == nsEditProperty::strike)
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|| (nodeAtom == nsEditProperty::big)
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|| (nodeAtom == nsEditProperty::small)
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|| (nodeAtom == nsEditProperty::blink)
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|| (nodeAtom == nsEditProperty::sub)
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|| (nodeAtom == nsEditProperty::sup)
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|| (nodeAtom == nsEditProperty::font);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsFormatNode true if node is a format node
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//
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PRBool
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nsHTMLEditUtils::IsFormatNode(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsFormatNode");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::p)
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|| (nodeAtom == nsEditProperty::pre)
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|| (nodeAtom == nsEditProperty::h1)
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|| (nodeAtom == nsEditProperty::h2)
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|| (nodeAtom == nsEditProperty::h3)
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|| (nodeAtom == nsEditProperty::h4)
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|| (nodeAtom == nsEditProperty::h5)
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|| (nodeAtom == nsEditProperty::h6)
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|| (nodeAtom == nsEditProperty::address);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsNodeThatCanOutdent true if node is a list, list item, or blockquote
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//
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PRBool
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nsHTMLEditUtils::IsNodeThatCanOutdent(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsNodeThatCanOutdent");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::ul)
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|| (nodeAtom == nsEditProperty::ol)
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|| (nodeAtom == nsEditProperty::dl)
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|| (nodeAtom == nsEditProperty::li)
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|| (nodeAtom == nsEditProperty::dd)
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|| (nodeAtom == nsEditProperty::dt)
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|| (nodeAtom == nsEditProperty::blockquote);
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}
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///////////////////////////////////////////////////////////////////////////
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//
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PRBool
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nsHTMLEditUtils::IsSmall(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::small);
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}
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/********************************************************
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* helper methods from nsHTMLEditRules
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********************************************************/
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///////////////////////////////////////////////////////////////////////////
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// IsHeader: true if node an html header
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//
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PRBool
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nsHTMLEditUtils::IsHeader(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsHeader");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::h1)
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|| (nodeAtom == nsEditProperty::h2)
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|| (nodeAtom == nsEditProperty::h3)
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|| (nodeAtom == nsEditProperty::h4)
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|| (nodeAtom == nsEditProperty::h5)
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|| (nodeAtom == nsEditProperty::h6);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsParagraph: true if node an html paragraph
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//
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PRBool
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nsHTMLEditUtils::IsParagraph(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::p);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsHR: true if node an horizontal rule
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//
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PRBool
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nsHTMLEditUtils::IsHR(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::hr);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsListItem: true if node an html list item
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//
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PRBool
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nsHTMLEditUtils::IsListItem(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsListItem");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::li)
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|| (nodeAtom == nsEditProperty::dd)
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|| (nodeAtom == nsEditProperty::dt);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableElement: true if node an html table, td, tr, ...
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//
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PRBool
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nsHTMLEditUtils::IsTableElement(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null node passed to nsHTMLEditor::IsTableElement");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::table)
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|| (nodeAtom == nsEditProperty::tr)
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|| (nodeAtom == nsEditProperty::td)
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|| (nodeAtom == nsEditProperty::th)
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|| (nodeAtom == nsEditProperty::thead)
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|| (nodeAtom == nsEditProperty::tfoot)
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|| (nodeAtom == nsEditProperty::tbody)
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|| (nodeAtom == nsEditProperty::caption);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableElementButNotTable: true if node an html td, tr, ... (doesn't include table)
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//
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PRBool
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nsHTMLEditUtils::IsTableElementButNotTable(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null node passed to nsHTMLEditor::IsTableElementButNotTable");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::tr)
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|| (nodeAtom == nsEditProperty::td)
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|| (nodeAtom == nsEditProperty::th)
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|| (nodeAtom == nsEditProperty::thead)
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|| (nodeAtom == nsEditProperty::tfoot)
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|| (nodeAtom == nsEditProperty::tbody)
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|| (nodeAtom == nsEditProperty::caption);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTable: true if node an html table
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//
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PRBool
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nsHTMLEditUtils::IsTable(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::table);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableRow: true if node an html tr
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//
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PRBool
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nsHTMLEditUtils::IsTableRow(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::tr);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableCell: true if node an html td or th
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//
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PRBool
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nsHTMLEditUtils::IsTableCell(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsTableCell");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::td)
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|| (nodeAtom == nsEditProperty::th);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableCell: true if node an html td or th
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//
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PRBool
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nsHTMLEditUtils::IsTableCellOrCaption(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsTableCell");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::td)
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|| (nodeAtom == nsEditProperty::th)
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|| (nodeAtom == nsEditProperty::caption);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsList: true if node an html list
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//
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PRBool
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nsHTMLEditUtils::IsList(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsList");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::ul)
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|| (nodeAtom == nsEditProperty::ol)
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|| (nodeAtom == nsEditProperty::dl);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsOrderedList: true if node an html ordered list
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//
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PRBool
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nsHTMLEditUtils::IsOrderedList(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::ol);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsUnorderedList: true if node an html unordered list
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//
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PRBool
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nsHTMLEditUtils::IsUnorderedList(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::ul);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsBlockquote: true if node an html blockquote node
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//
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PRBool
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nsHTMLEditUtils::IsBlockquote(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::blockquote);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsPre: true if node an html pre node
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//
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PRBool
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nsHTMLEditUtils::IsPre(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::pre);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsAddress: true if node an html address node
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//
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PRBool
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nsHTMLEditUtils::IsAddress(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::address);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsImage: true if node an html image node
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//
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PRBool
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nsHTMLEditUtils::IsImage(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::img);
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}
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PRBool
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nsHTMLEditUtils::IsLink(nsIDOMNode *aNode)
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{
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if (!aNode) return PR_FALSE;
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nsCOMPtr<nsIDOMHTMLAnchorElement> anchor = do_QueryInterface(aNode);
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if (anchor)
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{
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nsAutoString tmpText;
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if (NS_SUCCEEDED(anchor->GetHref(tmpText)) && !tmpText.IsEmpty())
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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PRBool
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nsHTMLEditUtils::IsNamedAnchor(nsIDOMNode *aNode)
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{
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if (!aNode) return PR_FALSE;
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nsCOMPtr<nsIDOMHTMLAnchorElement> anchor = do_QueryInterface(aNode);
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if (anchor)
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{
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nsAutoString tmpText;
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if (NS_SUCCEEDED(anchor->GetName(tmpText)) && !tmpText.IsEmpty())
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsDiv: true if node an html div node
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//
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PRBool
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nsHTMLEditUtils::IsDiv(nsIDOMNode *node)
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{
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return nsEditor::NodeIsType(node, nsEditProperty::div);
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}
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///////////////////////////////////////////////////////////////////////////
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// IsMozDiv: true if node an html div node with type = _moz
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//
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PRBool
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nsHTMLEditUtils::IsMozDiv(nsIDOMNode *node)
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{
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if (IsDiv(node) && nsTextEditUtils::HasMozAttr(node)) return PR_TRUE;
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsMailCite: true if node an html blockquote with type=cite
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//
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PRBool
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nsHTMLEditUtils::IsMailCite(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsMailCite");
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nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(node);
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if (!elem) return PR_FALSE;
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nsAutoString attrName (NS_LITERAL_STRING("type"));
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// don't ask me why, but our html mailcites are id'd by "type=cite"...
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nsAutoString attrVal;
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nsresult res = elem->GetAttribute(attrName, attrVal);
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ToLowerCase(attrVal);
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if (NS_SUCCEEDED(res))
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{
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if (attrVal.EqualsLiteral("cite"))
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return PR_TRUE;
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}
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// ... but our plaintext mailcites by "_moz_quote=true". go figure.
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attrName.AssignLiteral("_moz_quote");
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res = elem->GetAttribute(attrName, attrVal);
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if (NS_SUCCEEDED(res))
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{
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ToLowerCase(attrVal);
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if (attrVal.EqualsLiteral("true"))
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsFormWidget: true if node is a form widget of some kind
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//
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PRBool
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nsHTMLEditUtils::IsFormWidget(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null node passed to nsHTMLEditUtils::IsFormWidget");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(node);
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return (nodeAtom == nsEditProperty::textarea)
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|| (nodeAtom == nsEditProperty::select)
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|| (nodeAtom == nsEditProperty::button)
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|| (nodeAtom == nsEditProperty::input);
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}
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PRBool
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nsHTMLEditUtils::SupportsAlignAttr(nsIDOMNode * aNode)
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{
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NS_PRECONDITION(aNode, "null node passed to nsHTMLEditUtils::SupportsAlignAttr");
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nsCOMPtr<nsIAtom> nodeAtom = nsEditor::GetTag(aNode);
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return (nodeAtom == nsEditProperty::hr)
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|| (nodeAtom == nsEditProperty::table)
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|| (nodeAtom == nsEditProperty::tbody)
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|| (nodeAtom == nsEditProperty::tfoot)
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|| (nodeAtom == nsEditProperty::thead)
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|| (nodeAtom == nsEditProperty::tr)
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|| (nodeAtom == nsEditProperty::td)
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|| (nodeAtom == nsEditProperty::th)
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|| (nodeAtom == nsEditProperty::div)
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|| (nodeAtom == nsEditProperty::p)
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|| (nodeAtom == nsEditProperty::h1)
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|| (nodeAtom == nsEditProperty::h2)
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|| (nodeAtom == nsEditProperty::h3)
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|| (nodeAtom == nsEditProperty::h4)
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|| (nodeAtom == nsEditProperty::h5)
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|| (nodeAtom == nsEditProperty::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, isindex, 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, del, dfn, em, ins, kbd, samp, strong, var
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#define GROUP_PHRASE (1 << 4)
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// a, applet, basefont, bdo, br, font, iframe, img, map, object, q, script,
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// 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, blockquote, button, center, del, dir, div, dl, fieldset,
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// form, h1, h2, h3, h4, h5, h6, hr, iframe, ins, isindex, map, menu, noframes,
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// noscript, object, ol, p, pre, table, 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
|
|
#define GROUP_TR_CONTENT (1 << 11)
|
|
|
|
// col
|
|
#define GROUP_COLGROUP_CONTENT (1 << 12)
|
|
|
|
// param
|
|
#define GROUP_OBJECT_CONTENT (1 << 13)
|
|
|
|
// li
|
|
#define GROUP_LI (1 << 14)
|
|
|
|
// area
|
|
#define GROUP_MAP_CONTENT (1 << 15)
|
|
|
|
// optgroup, option
|
|
#define GROUP_SELECT_CONTENT (1 << 16)
|
|
|
|
// option
|
|
#define GROUP_OPTGROUP_CONTENT (1 << 17)
|
|
|
|
// dd, dt
|
|
#define GROUP_DL_CONTENT (1 << 18)
|
|
|
|
// p
|
|
#define GROUP_P (1 << 19)
|
|
|
|
// text, whitespace, newline, comment
|
|
#define GROUP_LEAF (1 << 20)
|
|
|
|
// XXX This is because the editor does sublists illegally.
|
|
// ol, ul
|
|
#define GROUP_OL_UL (1 << 21)
|
|
|
|
#define GROUP_INLINE_ELEMENT \
|
|
(GROUP_FONTSTYLE | GROUP_PHRASE | GROUP_SPECIAL | GROUP_FORMCONTROL | \
|
|
GROUP_LEAF)
|
|
|
|
#define GROUP_FLOW_ELEMENT (GROUP_INLINE_ELEMENT | GROUP_BLOCK)
|
|
|
|
struct nsElementInfo
|
|
{
|
|
#ifdef DEBUG
|
|
eHTMLTags mTag;
|
|
#endif
|
|
PRUint32 mGroup;
|
|
PRUint32 mCanContainGroups;
|
|
PRPackedBool mIsContainer;
|
|
PRPackedBool mCanContainSelf;
|
|
};
|
|
|
|
#ifdef DEBUG
|
|
#define ELEM(_tag, _isContainer, _canContainSelf, _group, _canContainGroups) \
|
|
{ eHTMLTag_##_tag, _group, _canContainGroups, _isContainer, _canContainSelf }
|
|
#else
|
|
#define ELEM(_tag, _isContainer, _canContainSelf, _group, _canContainGroups) \
|
|
{ _group, _canContainGroups, _isContainer, _canContainSelf }
|
|
#endif
|
|
|
|
static const nsElementInfo kElements[eHTMLTag_userdefined] = {
|
|
ELEM(a, PR_TRUE, PR_FALSE, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(abbr, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(acronym, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(address, PR_TRUE, PR_TRUE, GROUP_BLOCK,
|
|
GROUP_INLINE_ELEMENT | GROUP_P),
|
|
ELEM(applet, PR_TRUE, PR_TRUE, GROUP_SPECIAL | GROUP_BLOCK,
|
|
GROUP_FLOW_ELEMENT | GROUP_OBJECT_CONTENT),
|
|
ELEM(area, PR_FALSE, PR_FALSE, GROUP_MAP_CONTENT, GROUP_NONE),
|
|
ELEM(b, PR_TRUE, PR_TRUE, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(base, PR_FALSE, PR_FALSE, GROUP_HEAD_CONTENT, GROUP_NONE),
|
|
ELEM(basefont, PR_FALSE, PR_FALSE, GROUP_SPECIAL, GROUP_NONE),
|
|
ELEM(bdo, PR_TRUE, PR_TRUE, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(bgsound, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(big, PR_TRUE, PR_TRUE, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(blink, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(blockquote, PR_TRUE, PR_TRUE, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(body, PR_TRUE, PR_TRUE, GROUP_TOPLEVEL, GROUP_FLOW_ELEMENT),
|
|
ELEM(br, PR_FALSE, PR_FALSE, GROUP_SPECIAL, GROUP_NONE),
|
|
ELEM(button, PR_TRUE, PR_TRUE, GROUP_FORMCONTROL | GROUP_BLOCK,
|
|
GROUP_FLOW_ELEMENT),
|
|
ELEM(canvas, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(caption, PR_TRUE, PR_TRUE, GROUP_NONE, GROUP_INLINE_ELEMENT),
|
|
ELEM(center, PR_TRUE, PR_TRUE, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(cite, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(code, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(col, PR_FALSE, PR_FALSE, GROUP_TABLE_CONTENT | GROUP_COLGROUP_CONTENT,
|
|
GROUP_NONE),
|
|
ELEM(colgroup, PR_TRUE, PR_FALSE, GROUP_NONE, GROUP_COLGROUP_CONTENT),
|
|
ELEM(dd, PR_TRUE, PR_FALSE, GROUP_DL_CONTENT, GROUP_FLOW_ELEMENT),
|
|
ELEM(del, PR_TRUE, PR_TRUE, GROUP_PHRASE | GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(dfn, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(dir, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_LI),
|
|
ELEM(div, PR_TRUE, PR_TRUE, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(dl, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_DL_CONTENT),
|
|
ELEM(dt, PR_TRUE, PR_TRUE, GROUP_DL_CONTENT, GROUP_INLINE_ELEMENT),
|
|
ELEM(em, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(embed, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(fieldset, PR_TRUE, PR_TRUE, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(font, PR_TRUE, PR_TRUE, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(form, PR_TRUE, PR_TRUE, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(frame, PR_FALSE, PR_FALSE, GROUP_FRAME, GROUP_NONE),
|
|
ELEM(frameset, PR_TRUE, PR_TRUE, GROUP_FRAME, GROUP_FRAME),
|
|
ELEM(h1, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
|
|
ELEM(h2, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
|
|
ELEM(h3, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
|
|
ELEM(h4, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
|
|
ELEM(h5, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
|
|
ELEM(h6, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
|
|
ELEM(head, PR_TRUE, PR_FALSE, GROUP_TOPLEVEL, GROUP_HEAD_CONTENT),
|
|
ELEM(hr, PR_FALSE, PR_FALSE, GROUP_BLOCK, GROUP_NONE),
|
|
ELEM(html, PR_TRUE, PR_FALSE, GROUP_TOPLEVEL, GROUP_TOPLEVEL),
|
|
ELEM(i, PR_TRUE, PR_TRUE, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(iframe, PR_TRUE, PR_TRUE, GROUP_SPECIAL | GROUP_BLOCK,
|
|
GROUP_FLOW_ELEMENT),
|
|
ELEM(image, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(img, PR_FALSE, PR_FALSE, GROUP_SPECIAL, GROUP_NONE),
|
|
ELEM(input, PR_FALSE, PR_FALSE, GROUP_FORMCONTROL, GROUP_NONE),
|
|
ELEM(ins, PR_TRUE, PR_TRUE, GROUP_PHRASE | GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(isindex, PR_FALSE, PR_FALSE, GROUP_BLOCK | GROUP_HEAD_CONTENT,
|
|
GROUP_NONE),
|
|
ELEM(kbd, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(keygen, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(label, PR_TRUE, PR_FALSE, GROUP_FORMCONTROL, GROUP_INLINE_ELEMENT),
|
|
ELEM(legend, PR_TRUE, PR_TRUE, GROUP_NONE, GROUP_INLINE_ELEMENT),
|
|
ELEM(li, PR_TRUE, PR_FALSE, GROUP_LI, GROUP_FLOW_ELEMENT),
|
|
ELEM(link, PR_FALSE, PR_FALSE, GROUP_HEAD_CONTENT, GROUP_NONE),
|
|
ELEM(listing, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(map, PR_TRUE, PR_TRUE, GROUP_SPECIAL, GROUP_BLOCK | GROUP_MAP_CONTENT),
|
|
ELEM(marquee, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(menu, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_LI),
|
|
ELEM(meta, PR_FALSE, PR_FALSE, GROUP_HEAD_CONTENT, GROUP_NONE),
|
|
ELEM(multicol, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(nobr, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(noembed, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(noframes, PR_TRUE, PR_TRUE, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(noscript, PR_TRUE, PR_TRUE, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
|
|
ELEM(object, PR_TRUE, PR_TRUE, GROUP_SPECIAL | GROUP_BLOCK,
|
|
GROUP_FLOW_ELEMENT | GROUP_OBJECT_CONTENT),
|
|
// XXX Can contain self and ul because editor does sublists illegally.
|
|
ELEM(ol, PR_TRUE, PR_TRUE, GROUP_BLOCK | GROUP_OL_UL,
|
|
GROUP_LI | GROUP_OL_UL),
|
|
ELEM(optgroup, PR_TRUE, PR_FALSE, GROUP_SELECT_CONTENT,
|
|
GROUP_OPTGROUP_CONTENT),
|
|
ELEM(option, PR_TRUE, PR_FALSE,
|
|
GROUP_SELECT_CONTENT | GROUP_OPTGROUP_CONTENT, GROUP_LEAF),
|
|
ELEM(p, PR_TRUE, PR_FALSE, GROUP_BLOCK | GROUP_P, GROUP_INLINE_ELEMENT),
|
|
ELEM(param, PR_FALSE, PR_FALSE, GROUP_OBJECT_CONTENT, GROUP_NONE),
|
|
ELEM(plaintext, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(pre, PR_TRUE, PR_TRUE, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
|
|
ELEM(q, PR_TRUE, PR_TRUE, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(s, PR_TRUE, PR_TRUE, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(samp, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(script, PR_TRUE, PR_FALSE, GROUP_HEAD_CONTENT | GROUP_SPECIAL,
|
|
GROUP_LEAF),
|
|
ELEM(select, PR_TRUE, PR_FALSE, GROUP_FORMCONTROL, GROUP_SELECT_CONTENT),
|
|
ELEM(small, PR_TRUE, PR_TRUE, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(spacer, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(span, PR_TRUE, PR_TRUE, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(strike, PR_TRUE, PR_TRUE, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(strong, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(style, PR_TRUE, PR_FALSE, GROUP_HEAD_CONTENT, GROUP_LEAF),
|
|
ELEM(sub, PR_TRUE, PR_TRUE, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(sup, PR_TRUE, PR_TRUE, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
|
|
ELEM(table, PR_TRUE, PR_FALSE, GROUP_BLOCK, GROUP_TABLE_CONTENT),
|
|
ELEM(tbody, PR_TRUE, PR_FALSE, GROUP_TABLE_CONTENT, GROUP_TBODY_CONTENT),
|
|
ELEM(td, PR_TRUE, PR_FALSE, GROUP_TR_CONTENT, GROUP_FLOW_ELEMENT),
|
|
ELEM(textarea, PR_TRUE, PR_FALSE, GROUP_FORMCONTROL, GROUP_LEAF),
|
|
ELEM(tfoot, PR_TRUE, PR_FALSE, GROUP_NONE, GROUP_TBODY_CONTENT),
|
|
ELEM(th, PR_TRUE, PR_FALSE, GROUP_TR_CONTENT, GROUP_FLOW_ELEMENT),
|
|
ELEM(thead, PR_TRUE, PR_FALSE, GROUP_NONE, GROUP_TBODY_CONTENT),
|
|
ELEM(title, PR_TRUE, PR_FALSE, GROUP_HEAD_CONTENT, GROUP_LEAF),
|
|
ELEM(tr, PR_TRUE, PR_FALSE, GROUP_TBODY_CONTENT, GROUP_TR_CONTENT),
|
|
ELEM(tt, PR_TRUE, PR_TRUE, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
ELEM(u, PR_TRUE, PR_TRUE, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
|
|
// XXX Can contain self and ol because editor does sublists illegally.
|
|
ELEM(ul, PR_TRUE, PR_TRUE, GROUP_BLOCK | GROUP_OL_UL,
|
|
GROUP_LI | GROUP_OL_UL),
|
|
ELEM(var, PR_TRUE, PR_TRUE, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
|
|
ELEM(wbr, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(xmp, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
|
|
// These aren't elements.
|
|
ELEM(text, PR_FALSE, PR_FALSE, GROUP_LEAF, GROUP_NONE),
|
|
ELEM(whitespace, PR_FALSE, PR_FALSE, GROUP_LEAF, GROUP_NONE),
|
|
ELEM(newline, PR_FALSE, PR_FALSE, GROUP_LEAF, GROUP_NONE),
|
|
ELEM(comment, PR_FALSE, PR_FALSE, GROUP_LEAF, GROUP_NONE),
|
|
ELEM(entity, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(doctypeDecl, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(markupDecl, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
ELEM(instruction, PR_FALSE, PR_FALSE, GROUP_NONE, GROUP_NONE),
|
|
|
|
ELEM(userdefined, PR_TRUE, PR_FALSE, GROUP_NONE, GROUP_FLOW_ELEMENT)
|
|
};
|
|
|
|
PRBool
|
|
nsHTMLEditUtils::CanContain(PRInt32 aParent, PRInt32 aChild)
|
|
{
|
|
NS_ASSERTION(aParent > eHTMLTag_unknown && aParent <= eHTMLTag_userdefined,
|
|
"aParent out of range!");
|
|
NS_ASSERTION(aChild > eHTMLTag_unknown && aChild <= eHTMLTag_userdefined,
|
|
"aChild out of range!");
|
|
|
|
#ifdef DEBUG
|
|
static PRBool checked = PR_FALSE;
|
|
if (!checked) {
|
|
checked = PR_TRUE;
|
|
PRInt32 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 (aParent == eHTMLTag_button) {
|
|
static const eHTMLTags kButtonExcludeKids[] = {
|
|
eHTMLTag_a,
|
|
eHTMLTag_fieldset,
|
|
eHTMLTag_form,
|
|
eHTMLTag_iframe,
|
|
eHTMLTag_input,
|
|
eHTMLTag_isindex,
|
|
eHTMLTag_select,
|
|
eHTMLTag_textarea
|
|
};
|
|
|
|
PRUint32 j;
|
|
for (j = 0; j < NS_ARRAY_LENGTH(kButtonExcludeKids); ++j) {
|
|
if (kButtonExcludeKids[j] == aChild) {
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Deprecated elements.
|
|
if (aChild == eHTMLTag_bgsound || aChild == eHTMLTag_keygen) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Bug #67007, dont strip userdefined tags.
|
|
if (aChild == eHTMLTag_userdefined) {
|
|
return PR_TRUE;
|
|
}
|
|
|
|
const nsElementInfo& parent = kElements[aParent - 1];
|
|
if (aParent == aChild) {
|
|
return parent.mCanContainSelf;
|
|
}
|
|
|
|
const nsElementInfo& child = kElements[aChild - 1];
|
|
return (parent.mCanContainGroups & child.mGroup) != 0;
|
|
}
|
|
|
|
PRBool
|
|
nsHTMLEditUtils::IsContainer(PRInt32 aTag)
|
|
{
|
|
NS_ASSERTION(aTag > eHTMLTag_unknown && aTag <= eHTMLTag_userdefined,
|
|
"aTag out of range!");
|
|
|
|
return kElements[aTag - 1].mIsContainer;
|
|
}
|