gecko-dev/mailnews/base/util/nsMsgTxn.cpp

151 lines
3.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998, 1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsMsgTxn.h"
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kITransactionIID, NS_ITRANSACTION_IID);
NS_IMPL_ADDREF(nsMsgTxn)
NS_IMPL_RELEASE(nsMsgTxn)
// note that aEditor is not refcounted
nsMsgTxn::nsMsgTxn()
{
NS_INIT_REFCNT();
m_txnType = 0;
m_undoString = "Undo";
m_redoString = "Redo";
}
nsMsgTxn::~nsMsgTxn()
{
}
NS_IMETHODIMP nsMsgTxn::Do(void)
{
return NS_OK;
}
NS_IMETHODIMP nsMsgTxn::GetIsTransient(PRBool *aIsTransient)
{
if (nsnull!=aIsTransient)
*aIsTransient = PR_FALSE;
else
return NS_ERROR_NULL_POINTER;
return NS_OK;
}
NS_IMETHODIMP nsMsgTxn::Merge(PRBool *aDidMerge, nsITransaction *aTransaction)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsMsgTxn::Write(nsIOutputStream *aOutputStream)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsMsgTxn::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kISupportsIID)) {
*aInstancePtr = (void*)(nsISupports*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kITransactionIID)) {
*aInstancePtr = (void*)(nsITransaction*)this;
NS_ADDREF_THIS();
return NS_OK;
}
*aInstancePtr = 0;
return NS_NOINTERFACE;
}
NS_IMETHODIMP nsMsgTxn::GetMsgWindow(nsIMsgWindow **msgWindow)
{
if (!msgWindow || !m_msgWindow)
return NS_ERROR_NULL_POINTER;
*msgWindow = m_msgWindow;
NS_ADDREF (*msgWindow);
return NS_OK;
}
NS_IMETHODIMP nsMsgTxn::SetMsgWindow(nsIMsgWindow *msgWindow)
{
m_msgWindow = msgWindow;
return NS_OK;
}
NS_IMETHODIMP
nsMsgTxn::SetUndoString(nsString *aString)
{
if (!aString) return NS_ERROR_NULL_POINTER;
m_undoString = *aString;
return NS_OK;
}
NS_IMETHODIMP
nsMsgTxn::SetRedoString(nsString* aString)
{
if (!aString) return NS_ERROR_NULL_POINTER;
m_redoString = *aString;
return NS_OK;
}
NS_IMETHODIMP
nsMsgTxn::GetUndoString(nsString* aString)
{
if (!aString) return NS_ERROR_NULL_POINTER;
*aString = m_undoString;
return NS_OK;
}
NS_IMETHODIMP
nsMsgTxn::GetRedoString(nsString* aString)
{
if (!aString) return NS_ERROR_NULL_POINTER;
*aString = m_redoString;
return NS_OK;
}
NS_IMETHODIMP
nsMsgTxn::GetTransactionType(PRUint32 *txnType)
{
if (!txnType)
return NS_ERROR_NULL_POINTER;
*txnType = m_txnType;
return NS_OK;
}
NS_IMETHODIMP
nsMsgTxn::SetTransactionType(PRUint32 txnType)
{
m_txnType = txnType;
return NS_OK;
}