gecko/editor/libeditor/base/DeleteNodeTxn.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2012-05-21 04:12:37 -07:00
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef DeleteNodeTxn_h__
#define DeleteNodeTxn_h__
#include "EditTxn.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIContent.h"
#include "nsINode.h"
#include "nsISupportsImpl.h"
#include "nscore.h"
class nsEditor;
class nsRangeUpdater;
/**
* A transaction that deletes a single element
*/
class DeleteNodeTxn : public EditTxn
{
public:
/** initialize the transaction.
* @param aElement the node to delete
*/
nsresult Init(nsEditor* aEditor, nsINode* aNode,
nsRangeUpdater* aRangeUpdater);
DeleteNodeTxn();
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteNodeTxn, EditTxn)
NS_DECL_EDITTXN
NS_IMETHOD RedoTransaction();
protected:
/** the element to delete */
nsCOMPtr<nsINode> mNode;
/** parent of node to delete */
nsCOMPtr<nsINode> mParent;
/** next sibling to remember for undo/redo purposes */
nsCOMPtr<nsIContent> mRefNode;
/** the editor for this transaction */
nsEditor* mEditor;
/** range updater object */
nsRangeUpdater* mRangeUpdater;
};
#endif