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103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef CreateElementTxn_h__
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#define CreateElementTxn_h__
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#include "EditTxn.h"
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#include "nsIEditor.h"
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#include "nsIDOMNode.h"
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#include "nsCOMPtr.h"
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#define CREATE_ELEMENT_TXN_CID \
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{/* 7a6393c0-ac48-11d2-86d8-000064657374 */ \
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0x7a6393c0, 0xac48, 0x11d2, \
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{0x86, 0xd8, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
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/**
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* A transaction that creates a new node in the content tree.
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*/
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class CreateElementTxn : public EditTxn
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{
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public:
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static const nsIID& GetCID() { static nsIID iid = CREATE_ELEMENT_TXN_CID; return iid; }
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enum { eAppend=-1 };
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/** Initialize the transaction.
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* @param aEditor the provider of basic editing functionality
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* @param aTag the tag (P, HR, TABLE, etc.) for the new element
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* @param aParent the node into which the new element will be inserted
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* @param aOffsetInParent the location in aParent to insert the new element
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* if eAppend, the new element is appended as the last child
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*/
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NS_IMETHOD Init(nsIEditor *aEditor,
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const nsString& aTag,
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nsIDOMNode *aParent,
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PRUint32 aOffsetInParent);
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private:
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CreateElementTxn();
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public:
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virtual ~CreateElementTxn();
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NS_IMETHOD Do(void);
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NS_IMETHOD Undo(void);
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NS_IMETHOD Redo(void);
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NS_IMETHOD Merge(PRBool *aDidMerge, nsITransaction *aTransaction);
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NS_IMETHOD Write(nsIOutputStream *aOutputStream);
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NS_IMETHOD GetUndoString(nsString *aString);
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NS_IMETHOD GetRedoString(nsString *aString);
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NS_IMETHOD GetNewNode(nsIDOMNode **aNewNode);
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protected:
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/** the document into which the new node will be inserted */
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nsIEditor* mEditor;
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/** the tag (mapping to object type) for the new element */
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nsString mTag;
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/** the node into which the new node will be inserted */
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nsCOMPtr<nsIDOMNode> mParent;
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/** the index in mParent for the new node */
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PRUint32 mOffsetInParent;
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/** the new node to insert */
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nsCOMPtr<nsIDOMNode> mNewNode;
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/** the node we will insert mNewNode before. We compute this ourselves. */
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nsCOMPtr<nsIDOMNode> mRefNode;
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friend class TransactionFactory;
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};
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#endif
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