gecko-dev/editor/base/IMECommitTxn.cpp

139 строки
3.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 "IMECommitTxn.h"
#include "nsEditor.h"
// #define DEBUG_IME
nsIAtom *IMECommitTxn::gIMECommitTxnName = nsnull;
nsresult IMECommitTxn::ClassInit()
{
if (nsnull==gIMECommitTxnName)
gIMECommitTxnName = NS_NewAtom("NS_IMECommitTxn");
return NS_OK;
}
nsresult IMECommitTxn::ClassShutdown()
{
NS_IF_RELEASE(gIMECommitTxnName);
return NS_OK;
}
IMECommitTxn::IMECommitTxn()
: EditTxn()
{
SetTransactionDescriptionID( kTransactionID );
/* log description initialized in parent constructor */
}
IMECommitTxn::~IMECommitTxn()
{
}
NS_IMETHODIMP IMECommitTxn::Init(void)
{
return NS_OK;
}
NS_IMETHODIMP IMECommitTxn::Do(void)
{
#ifdef DEBUG_IME
printf("Do IME Commit");
#endif
return NS_OK;
}
NS_IMETHODIMP IMECommitTxn::Undo(void)
{
#ifdef DEBUG_IME
printf("Undo IME Commit");
#endif
return NS_OK;
}
NS_IMETHODIMP IMECommitTxn::Merge(PRBool *aDidMerge, nsITransaction *aTransaction)
{
#ifdef DEBUG_IME
printf("Merge IME Commit");
#endif
NS_ASSERTION(aDidMerge, "null ptr- aDidMerge");
NS_ASSERTION(aTransaction, "null ptr- aTransaction");
if((nsnull == aDidMerge) || (nsnull == aTransaction))
return NS_ERROR_NULL_POINTER;
*aDidMerge=PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP IMECommitTxn::Write(nsIOutputStream *aOutputStream)
{
NS_ASSERTION(aOutputStream, "null ptr- aOutputStream");
if(nsnull == aOutputStream)
return NS_ERROR_NULL_POINTER;
else
return NS_OK;
}
NS_IMETHODIMP IMECommitTxn::GetUndoString(nsString *aString)
{
NS_ASSERTION(aString, "null ptr- aString");
if(nsnull == aString) {
return NS_ERROR_NULL_POINTER;
} else {
aString->AssignWithConversion("Remove IMECommit: ");
return NS_OK;
}
}
NS_IMETHODIMP IMECommitTxn::GetRedoString(nsString *aString)
{
NS_ASSERTION(aString, "null ptr- aString");
if(nsnull == aString) {
return NS_ERROR_NULL_POINTER;
} else {
aString->AssignWithConversion("Insert IMECommit: ");
return NS_OK;
}
}
/* ============= nsISupports implementation ====================== */
NS_IMETHODIMP
IMECommitTxn::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(IMECommitTxn::GetCID())) {
*aInstancePtr = (void*)(IMECommitTxn*)this;
NS_ADDREF_THIS();
return NS_OK;
}
return (EditTxn::QueryInterface(aIID, aInstancePtr));
}