mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-09-19 19:50:18 +02:00
116 lines
3.8 KiB
C++
116 lines
3.8 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 JoinElementTxn_h__
|
|
#define JoinElementTxn_h__
|
|
|
|
#include "EditTxn.h"
|
|
#include "nsIDOMNode.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsIEditor.h"
|
|
|
|
#define JOIN_ELEMENT_TXN_CID \
|
|
{/* 9bc5f9f0-ac48-11d2-86d8-000064657374 */ \
|
|
0x9bc5f9f0, 0xac48, 0x11d2, \
|
|
{0x86, 0xd8, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
|
|
|
|
class nsEditor;
|
|
|
|
/**
|
|
* A transaction that joins two elements E1 (left node) and E2 (right node)
|
|
* into a single node E.
|
|
* The children of E are the children of E1 followed by the children of E2.
|
|
* After DoTransaction() and RedoTransaction(), E1 is removed from the content
|
|
* tree and E2 remains.
|
|
*/
|
|
class JoinElementTxn : public EditTxn
|
|
{
|
|
public:
|
|
|
|
static const nsIID& GetCID() { static const nsIID iid = JOIN_ELEMENT_TXN_CID; return iid; }
|
|
|
|
/** initialize the transaction
|
|
* @param aEditor the provider of core editing operations
|
|
* @param aLeftNode the first of two nodes to join
|
|
* @param aRightNode the second of two nodes to join
|
|
*/
|
|
NS_IMETHOD Init(nsEditor *aEditor,
|
|
nsIDOMNode *aLeftNode,
|
|
nsIDOMNode *aRightNode);
|
|
protected:
|
|
JoinElementTxn();
|
|
|
|
public:
|
|
|
|
virtual ~JoinElementTxn();
|
|
|
|
NS_IMETHOD DoTransaction(void);
|
|
|
|
NS_IMETHOD UndoTransaction(void);
|
|
|
|
// NS_IMETHOD RedoTransaction(void);
|
|
|
|
NS_IMETHOD GetIsTransient(PRBool *aIsTransient);
|
|
|
|
NS_IMETHOD Merge(nsITransaction *aTransaction, PRBool *aDidMerge);
|
|
|
|
NS_IMETHOD GetTxnDescription(nsAString& aTxnDescription);
|
|
|
|
protected:
|
|
|
|
/** the elements to operate upon.
|
|
* After the merge, mRightNode remains and mLeftNode is removed from the content tree.
|
|
*/
|
|
nsCOMPtr<nsIDOMNode> mLeftNode;
|
|
nsCOMPtr<nsIDOMNode> mRightNode;
|
|
|
|
/** the offset into mNode where the children of mElement are split (for undo).<BR>
|
|
* mOffset is the index of the first child in the right node.
|
|
* -1 means the left node had no children.
|
|
*/
|
|
PRUint32 mOffset;
|
|
|
|
/** the parent node containing mLeftNode and mRightNode */
|
|
nsCOMPtr<nsIDOMNode> mParent;
|
|
nsEditor* mEditor;
|
|
|
|
friend class TransactionFactory;
|
|
|
|
};
|
|
|
|
#endif
|