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106 lines
3.3 KiB
C++
106 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998-1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef EditAggregateTxn_h__
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#define EditAggregateTxn_h__
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#include "EditTxn.h"
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#include "nsIAtom.h"
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#include "nsCOMPtr.h"
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#include "nsISupportsArray.h"
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#define EDIT_AGGREGATE_TXN_CID \
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{/* 345921a0-ac49-11d2-86d8-000064657374 */ \
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0x345921a0, 0xac49, 0x11d2, \
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{0x86, 0xd8, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
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/**
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* base class for all document editing transactions that require aggregation.
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* provides a list of child transactions.
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*/
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class EditAggregateTxn : public EditTxn
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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static const nsIID& GetCID() { static const nsIID cid = EDIT_AGGREGATE_TXN_CID; return cid; }
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EditAggregateTxn();
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virtual ~EditAggregateTxn();
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NS_IMETHOD DoTransaction(void);
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NS_IMETHOD UndoTransaction(void);
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NS_IMETHOD RedoTransaction(void);
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NS_IMETHOD GetIsTransient(PRBool *aIsTransient);
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NS_IMETHOD Merge(nsITransaction *aTransaction, PRBool *aDidMerge);
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NS_IMETHOD GetTxnDescription(nsAString& aTxnDescription);
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/** append a transaction to this aggregate */
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NS_IMETHOD AppendChild(EditTxn *aTxn);
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/** get the number of nested txns.
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* This is the number of top-level txns, it does not do recursive decent.
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*/
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NS_IMETHOD GetCount(PRUint32 *aCount);
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/** get the txn at index aIndex.
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* returns NS_ERROR_UNEXPECTED if there is no txn at aIndex.
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*/
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NS_IMETHOD GetTxnAt(PRInt32 aIndex, EditTxn **aTxn);
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/** set the name assigned to this txn */
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NS_IMETHOD SetName(nsIAtom *aName);
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/** get the name assigned to this txn */
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NS_IMETHOD GetName(nsIAtom **aName);
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protected:
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nsCOMPtr<nsISupportsArray> mChildren;
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nsCOMPtr<nsIAtom> mName;
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};
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#endif
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