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d5932338f7
and merges in subsequent transactions indiscriminately until it's told to stop. It also gives the last transaction in its child list a chance to merge the next transaction. All this is in support of complex transactions that result in text insertion being able to collapse into a single undoable event. Also improved tracking of bogus content node used when document is empty.
111 lines
4.1 KiB
C++
111 lines
4.1 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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#include "TransactionFactory.h"
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// transactions this factory knows how to build
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#include "EditAggregateTxn.h"
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#include "PlaceholderTxn.h"
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#include "InsertTextTxn.h"
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#include "DeleteTextTxn.h"
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#include "CreateElementTxn.h"
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#include "InsertElementTxn.h"
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#include "DeleteElementTxn.h"
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#include "DeleteRangeTxn.h"
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#include "ChangeAttributeTxn.h"
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#include "SplitElementTxn.h"
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#include "JoinElementTxn.h"
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#include "InsertTableTxn.h"
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#include "InsertTableCellTxn.h"
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#include "InsertTableColumnTxn.h"
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#include "InsertTableRowTxn.h"
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#include "DeleteTableTxn.h"
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#include "DeleteTableCellTxn.h"
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#include "DeleteTableColumnTxn.h"
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#include "DeleteTableRowTxn.h"
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#include "JoinTableCellsTxn.h"
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static NS_DEFINE_IID(kEditAggregateTxnIID, EDIT_AGGREGATE_TXN_IID);
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static NS_DEFINE_IID(kPlaceholderTxnIID, PLACEHOLDER_TXN_IID);
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static NS_DEFINE_IID(kInsertTextTxnIID, INSERT_TEXT_TXN_IID);
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static NS_DEFINE_IID(kDeleteTextTxnIID, DELETE_TEXT_TXN_IID);
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static NS_DEFINE_IID(kCreateElementTxnIID, CREATE_ELEMENT_TXN_IID);
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static NS_DEFINE_IID(kInsertElementTxnIID, INSERT_ELEMENT_TXN_IID);
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static NS_DEFINE_IID(kDeleteElementTxnIID, DELETE_ELEMENT_TXN_IID);
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static NS_DEFINE_IID(kDeleteRangeTxnIID, DELETE_RANGE_TXN_IID);
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static NS_DEFINE_IID(kChangeAttributeTxnIID,CHANGE_ATTRIBUTE_TXN_IID);
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static NS_DEFINE_IID(kSplitElementTxnIID, SPLIT_ELEMENT_TXN_IID);
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static NS_DEFINE_IID(kJoinElementTxnIID, JOIN_ELEMENT_TXN_IID);
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static NS_DEFINE_IID(kInsertTableTxnIID, INSERT_TABLE_TXN_IID);
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static NS_DEFINE_IID(kInsertTableCellTxnIID, INSERT_CELL_TXN_IID);
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static NS_DEFINE_IID(kInsertTableColumnTxnIID, INSERT_COLUMN_TXN_IID);
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static NS_DEFINE_IID(kInsertTableRowTxnIID, INSERT_ROW_TXN_IID);
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static NS_DEFINE_IID(kDeleteTableTxnIID, DELETE_TABLE_TXN_IID);
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static NS_DEFINE_IID(kDeleteTableCellTxnIID, DELETE_CELL_TXN_IID);
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static NS_DEFINE_IID(kDeleteTableColumnTxnIID, DELETE_COLUMN_TXN_IID);
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static NS_DEFINE_IID(kDeleteTableRowTxnIID, DELETE_ROW_TXN_IID);
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static NS_DEFINE_IID(kJoinTableCellsTxnIID, JOIN_CELLS_TXN_IID);
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TransactionFactory::TransactionFactory()
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{
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}
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TransactionFactory::~TransactionFactory()
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{
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}
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nsresult
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TransactionFactory::GetNewTransaction(REFNSIID aTxnType, EditTxn **aResult)
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{
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nsresult result = NS_OK;
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*aResult = nsnull;
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if (aTxnType.Equals(kInsertTextTxnIID))
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*aResult = new InsertTextTxn();
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else if (aTxnType.Equals(kDeleteTextTxnIID))
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*aResult = new DeleteTextTxn();
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else if (aTxnType.Equals(kCreateElementTxnIID))
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*aResult = new CreateElementTxn();
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else if (aTxnType.Equals(kInsertElementTxnIID))
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*aResult = new InsertElementTxn();
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else if (aTxnType.Equals(kDeleteElementTxnIID))
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*aResult = new DeleteElementTxn();
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else if (aTxnType.Equals(kDeleteRangeTxnIID))
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*aResult = new DeleteRangeTxn();
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else if (aTxnType.Equals(kChangeAttributeTxnIID))
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*aResult = new ChangeAttributeTxn();
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else if (aTxnType.Equals(kSplitElementTxnIID))
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*aResult = new SplitElementTxn();
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else if (aTxnType.Equals(kJoinElementTxnIID))
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*aResult = new JoinElementTxn();
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else if (aTxnType.Equals(kEditAggregateTxnIID))
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*aResult = new EditAggregateTxn();
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else if (aTxnType.Equals(kPlaceholderTxnIID))
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*aResult = new PlaceholderTxn();
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else
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result = NS_ERROR_NO_INTERFACE;
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if (NS_SUCCEEDED(result) && nsnull==*aResult)
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result = NS_ERROR_OUT_OF_MEMORY;
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if (NS_SUCCEEDED(result))
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NS_ADDREF(*aResult);
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return result;
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}
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