gecko-dev/uriloader/exthandler/mac/nsInternetConfig.cpp

133 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 Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsInternetConfig.h"
#include "nsString.h"
#include "nsDebug.h"
#include <CodeFragments.h>
#include <Processes.h>
ICInstance nsInternetConfig::sInstance = NULL;
long nsInternetConfig::sSeed = 0;
PRInt32 nsInternetConfig::sRefCount = 0;
static OSType GetAppCreatorCode()
{
ProcessSerialNumber psn = { 0, kCurrentProcess } ;
ProcessInfoRec procInfo;
procInfo.processInfoLength = sizeof(ProcessInfoRec);
procInfo.processName = nsnull;
procInfo.processAppSpec = nsnull;
GetProcessInformation(&psn, &procInfo);
return procInfo.processSignature;
}
ICInstance nsInternetConfig::GetInstance()
{
if ( !sInstance )
{
OSStatus err;
if ((long)ICStart == kUnresolvedCFragSymbolAddress )
return sInstance;
OSType creator = GetAppCreatorCode();
err = ::ICStart( &sInstance, creator );
if ( err != noErr )
{
::ICStop( sInstance );
}
else
{
#if !TARGET_CARBON
::ICFindConfigFile( sInstance, 0 , nil );
#endif
::ICGetSeed( sInstance, &sSeed );
}
}
return sInstance;
}
PRBool nsInternetConfig::HasSeedChanged()
{
ICInstance instance = nsInternetConfig::GetInstance();
if ( instance )
{
long newSeed = 0;
::ICGetSeed( sInstance, &newSeed );
if ( newSeed != sSeed )
{
sSeed = newSeed;
return PR_TRUE;
}
}
return PR_FALSE;
}
nsInternetConfig::nsInternetConfig()
{
sRefCount++;
}
nsInternetConfig::~nsInternetConfig()
{
sRefCount--;
if ( sRefCount == 0 && sInstance)
{
::ICStop( sInstance );
sInstance = NULL;
}
}
nsresult nsInternetConfig::GetString( unsigned char* inKey, char** outString )
{
nsresult result = NS_ERROR_FAILURE;
ICInstance instance = nsInternetConfig::GetInstance();
if ( instance )
{
OSStatus err;
char buffer[256];
ICAttr junk;
long size = 256;
err = ::ICGetPref( instance, inKey, &junk, buffer, &size );
if ( err == noErr )
{
if (size == 0) {
*outString = nsnull;
return NS_OK;
}
// Buffer is a Pascal string
nsCString temp( &buffer[1], buffer[0] );
*outString = temp.ToNewCString();
result = NS_OK;
}
}
return result;
}