gecko-dev/editor/base/nsJSTxnLog.cpp

407 строки
7.1 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 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include <stdio.h>
#include "nsJSEditorLog.h"
#include "nsJSTxnLog.h"
#define LOCK_LOG(doc)
#define UNLOCK_LOG(doc)
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
nsJSTxnLog::nsJSTxnLog(nsJSEditorLog *aEditorLog)
{
mRefCnt = 0;
mIndentLevel = 0;
mBatchCount = 0;
mEditorLog = aEditorLog;
}
nsJSTxnLog::~nsJSTxnLog()
{
}
#define DEBUG_JS_TXN_LOG_REFCNT 1
#ifdef DEBUG_JS_TXN_LOG_REFCNT
nsrefcnt nsJSTxnLog::AddRef(void)
{
return ++mRefCnt;
}
nsrefcnt nsJSTxnLog::Release(void)
{
NS_PRECONDITION(0 != mRefCnt, "dup release");
if (--mRefCnt == 0) {
NS_DELETEXPCOM(this);
return 0;
}
return mRefCnt;
}
#else
NS_IMPL_ADDREF(nsJSTxnLog)
NS_IMPL_RELEASE(nsJSTxnLog)
#endif
NS_IMETHODIMP
nsJSTxnLog::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kISupportsIID)) {
*aInstancePtr = (void*)(nsISupports*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsITransactionListener::GetIID())) {
*aInstancePtr = (void*)(nsITransactionListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
*aInstancePtr = 0;
return NS_NOINTERFACE;
}
NS_IMETHODIMP
nsJSTxnLog::WillDo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction)
{
LOCK_LOG(this);
PrintIndent(mIndentLevel++);
Write("WillDo: ");
Write(GetString(aTransaction));
Write("\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::DidDo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, nsresult aDoResult)
{
LOCK_LOG(this);
PrintIndent(--mIndentLevel);
Write("DidDo: ");
Write(GetString(aTransaction));
Write("(");
WriteInt("%d", aDoResult);
Write(")\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::WillUndo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction)
{
LOCK_LOG(this);
PrintIndent(mIndentLevel++);
if (aTransaction)
{
Write("WillUndo: ");
Write(GetString(aTransaction));
Write("\n");
}
else
Write("WillUndoBatch\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::DidUndo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, nsresult aUndoResult)
{
LOCK_LOG(this);
PrintIndent(--mIndentLevel);
if (aTransaction)
{
Write("DidUndo: ");
Write(GetString(aTransaction));
Write("(");
WriteInt("%d", aUndoResult);
Write(")\n");
}
else
{
Write("EndUndoBatch (");
WriteInt("%d", aUndoResult);
Write(")\n");
}
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::WillRedo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction)
{
LOCK_LOG(this);
PrintIndent(mIndentLevel++);
if (aTransaction)
{
Write("WillRedo: ");
Write(GetString(aTransaction));
Write("\n");
}
else
Write("WillRedoBatch\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::DidRedo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, nsresult aRedoResult)
{
LOCK_LOG(this);
PrintIndent(--mIndentLevel);
if (aTransaction)
{
Write("DidRedo: ");
Write(GetString(aTransaction));
Write(" (");
WriteInt("%d", aRedoResult);
Write(")\n");
}
else
{
Write("DidRedoBatch (");
WriteInt("%d", aRedoResult);
Write(")\n");
}
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::WillBeginBatch(nsITransactionManager *aTxMgr)
{
LOCK_LOG(this);
PrintIndent(mIndentLevel);
Write("WillBeginBatch: ");
WriteInt("%d", mBatchCount);
Write("\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::DidBeginBatch(nsITransactionManager *aTxMgr, nsresult aResult)
{
LOCK_LOG(this);
PrintIndent(mIndentLevel++);
Write("DidBeginBatch: ");
WriteInt("%d", mBatchCount++);
Write(" (");
WriteInt("%d", aResult);
Write(")\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::WillEndBatch(nsITransactionManager *aTxMgr)
{
LOCK_LOG(this);
PrintIndent(--mIndentLevel);
Write("WillEndBatch: ");
WriteInt("%d", --mBatchCount);
Write("\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::DidEndBatch(nsITransactionManager *aTxMgr, nsresult aResult)
{
LOCK_LOG(this);
PrintIndent(mIndentLevel);
Write("DidEndBatch: ");
WriteInt("%d", mBatchCount);
Write(" (");
WriteInt("%d", aResult);
Write(")\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::WillMerge(nsITransactionManager *aTxMgr, nsITransaction *aTopTransaction, nsITransaction *aTransaction)
{
LOCK_LOG(this);
PrintIndent(mIndentLevel);
Write("WillMerge: ");
Write(GetString(aTopTransaction));
Write(" <-- ");
Write(GetString(aTransaction));
Write("\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
NS_IMETHODIMP
nsJSTxnLog::DidMerge(nsITransactionManager *aTxMgr, nsITransaction *aTopTransaction, nsITransaction *aTransaction, PRBool aDidMerge, nsresult aMergeResult)
{
LOCK_LOG(this);
PrintIndent(mIndentLevel);
Write("DidMerge: ");
Write(GetString(aTopTransaction));
Write(" <-- ");
Write(GetString(aTransaction));
Write(" (");
Write(aDidMerge ? "TRUE" : "FALSE");
Write(", ");
WriteInt("%d", aMergeResult);
Write(")\n");
Flush();
UNLOCK_LOG(this);
return NS_OK;
}
const char *
nsJSTxnLog::GetString(nsITransaction *aTransaction)
{
static char buf[256];
nsString str = "";
aTransaction->GetRedoString(&str);
if (str.Length() == 0)
str = "<NULL>";
buf[0] = '\0';
str.ToCString(buf, 256);
return buf;
}
nsresult
nsJSTxnLog::PrintIndent(PRInt32 aIndentLevel)
{
PRInt32 i;
Write(" // ");
for (i = 0; i < aIndentLevel; i++)
Write(" ");
return NS_OK;
}
nsresult
nsJSTxnLog::Write(const char *aBuffer)
{
if (!aBuffer)
return NS_ERROR_NULL_POINTER;
if (mEditorLog)
mEditorLog->Write(aBuffer);
else
printf(aBuffer);
return NS_OK;
}
nsresult
nsJSTxnLog::WriteInt(const char *aFormat, PRInt32 aInt)
{
if (!aFormat)
return NS_ERROR_NULL_POINTER;
if (mEditorLog)
mEditorLog->WriteInt(aFormat, aInt);
else
printf(aFormat, aInt);
return NS_OK;
}
nsresult
nsJSTxnLog::Flush()
{
nsresult result = NS_OK;
#ifdef SLOWS_THINGS_WAY_DOWN
if (mEditorLog)
result = mEditorLog->Flush();
else
fflush(stdout);
#endif // SLOWS_THINGS_WAY_DOWN
return result;
}