michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef DeleteNodeTxn_h__
michael@0: #define DeleteNodeTxn_h__
michael@0: 
michael@0: #include "EditTxn.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsCycleCollectionParticipant.h"
michael@0: #include "nsIContent.h"
michael@0: #include "nsINode.h"
michael@0: #include "nsISupportsImpl.h"
michael@0: #include "nscore.h"
michael@0: 
michael@0: class nsEditor;
michael@0: class nsRangeUpdater;
michael@0: 
michael@0: /**
michael@0:  * A transaction that deletes a single element
michael@0:  */
michael@0: class DeleteNodeTxn : public EditTxn
michael@0: {
michael@0: public:
michael@0:   /** initialize the transaction.
michael@0:     * @param aElement the node to delete
michael@0:     */
michael@0:   nsresult Init(nsEditor* aEditor, nsINode* aNode,
michael@0:                 nsRangeUpdater* aRangeUpdater);
michael@0: 
michael@0:   DeleteNodeTxn();
michael@0: 
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0:   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteNodeTxn, EditTxn)
michael@0: 
michael@0:   NS_DECL_EDITTXN
michael@0: 
michael@0:   NS_IMETHOD RedoTransaction();
michael@0: 
michael@0: protected:
michael@0: 
michael@0:   /** the element to delete */
michael@0:   nsCOMPtr<nsINode> mNode;
michael@0: 
michael@0:   /** parent of node to delete */
michael@0:   nsCOMPtr<nsINode> mParent;
michael@0: 
michael@0:   /** next sibling to remember for undo/redo purposes */
michael@0:   nsCOMPtr<nsIContent> mRefNode;
michael@0: 
michael@0:   /** the editor for this transaction */
michael@0:   nsEditor* mEditor;
michael@0: 
michael@0:   /** range updater object */
michael@0:   nsRangeUpdater* mRangeUpdater;
michael@0: };
michael@0: 
michael@0: #endif