gecko/editor/libeditor/base/CreateElementTxn.h

99 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef CreateElementTxn_h__
#define CreateElementTxn_h__
#include "EditTxn.h"
#include "nsEditor.h"
#include "nsIDOMNode.h"
#include "nsCOMPtr.h"
/**
* A transaction that creates a new node in the content tree.
*/
class CreateElementTxn : public EditTxn
{
public:
enum { eAppend=-1 };
/** Initialize the transaction.
* @param aEditor the provider of basic editing functionality
* @param aTag the tag (P, HR, TABLE, etc.) for the new element
* @param aParent the node into which the new element will be inserted
* @param aOffsetInParent the location in aParent to insert the new element
* if eAppend, the new element is appended as the last child
*/
NS_IMETHOD Init(nsEditor *aEditor,
const nsAString& aTag,
nsIDOMNode *aParent,
PRUint32 aOffsetInParent);
CreateElementTxn();
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(CreateElementTxn, EditTxn)
NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr);
NS_DECL_EDITTXN
NS_IMETHOD RedoTransaction();
NS_IMETHOD GetNewNode(nsIDOMNode **aNewNode);
protected:
/** the document into which the new node will be inserted */
nsEditor* mEditor;
/** the tag (mapping to object type) for the new element */
nsString mTag;
/** the node into which the new node will be inserted */
nsCOMPtr<nsIDOMNode> mParent;
/** the index in mParent for the new node */
PRUint32 mOffsetInParent;
/** the new node to insert */
nsCOMPtr<nsIDOMNode> mNewNode;
/** the node we will insert mNewNode before. We compute this ourselves. */
nsCOMPtr<nsIDOMNode> mRefNode;
};
#endif