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lightning-sunbird  0.9+nobinonly
nsMacResources.cpp
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
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00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
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00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
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00027  * in which case the provisions of the GPL or the LGPL are applicable instead
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00037 
00038 #include "nsMacResources.h"
00039 #include <Carbon/Carbon.h>
00040 
00041 short nsMacResources::mRefNum      = kResFileNotOpened;
00042 short nsMacResources::mSaveResFile = 0;
00043 
00044 
00045 nsresult nsMacResources::OpenLocalResourceFile()
00046 {
00047   if (mRefNum == kResFileNotOpened) {
00048     CFBundleRef appBundle = ::CFBundleGetMainBundle();
00049     if (appBundle) {
00050       CFURLRef executable = ::CFBundleCopyExecutableURL(appBundle);
00051       if (executable) {
00052         CFURLRef binDir = ::CFURLCreateCopyDeletingLastPathComponent(
00053                            kCFAllocatorDefault, executable);
00054         if (binDir) {
00055           CFURLRef resourceFile = ::CFURLCreateCopyAppendingPathComponent(
00056                                    kCFAllocatorDefault, binDir,
00057                                    CFSTR("libwidget.rsrc"), PR_FALSE);
00058           if (resourceFile) {
00059             FSRef resourceRef;
00060             if (::CFURLGetFSRef(resourceFile, &resourceRef))
00061               ::FSOpenResourceFile(&resourceRef, 0, NULL, fsRdPerm, &mRefNum);
00062             ::CFRelease(resourceFile);
00063           }
00064           ::CFRelease(binDir);
00065         }
00066         ::CFRelease(executable);
00067       }
00068     }
00069   }
00070   if (mRefNum == kResFileNotOpened)
00071     return NS_ERROR_NOT_INITIALIZED;
00072 
00073   mSaveResFile = ::CurResFile();
00074   ::UseResFile(mRefNum);
00075 
00076   return (::ResError() == noErr ? NS_OK : NS_ERROR_FAILURE);
00077 }
00078 
00079 
00080 nsresult nsMacResources::CloseLocalResourceFile()
00081 {
00082   if (mRefNum == kResFileNotOpened)
00083     return NS_ERROR_NOT_INITIALIZED;
00084 
00085   ::UseResFile(mSaveResFile);
00086 
00087   return (::ResError() == noErr ? NS_OK : NS_ERROR_FAILURE);
00088 }
00089