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lightning-sunbird  0.9+nobinonly
nsGREResProperties.cpp
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00001 /* vim: set sts=2 sw=2 et cin: */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
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
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is gre/res property file loading code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Christian Biesinger <cbiesinger@web.de>.
00019  * Portions created by the Initial Developer are Copyright (C) 2005
00020  * the Initial Developer. All Rights Reserved.
00021  *
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
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #include "nsGREResProperties.h"
00039 #include "nsILocalFile.h"
00040 #include "nsDirectoryServiceDefs.h"
00041 #include "nsDirectoryServiceUtils.h"
00042 #include "nsNetUtil.h"
00043 
00044 nsGREResProperties::nsGREResProperties(const nsACString& aFile)
00045 {
00046   nsCOMPtr<nsIFile> file;
00047   nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(file));
00048   if (NS_FAILED(rv))
00049     return;
00050 
00051   file->AppendNative(NS_LITERAL_CSTRING("res"));
00052   file->AppendNative(aFile);
00053 
00054   nsCOMPtr<nsILocalFile> lf(do_QueryInterface(file));
00055   NS_ENSURE_TRUE(lf, );
00056 
00057   nsCOMPtr<nsIInputStream> inStr;
00058   rv = NS_NewLocalFileInputStream(getter_AddRefs(inStr), lf);
00059   if (NS_FAILED(rv))
00060     return;
00061 
00062   mProps = do_CreateInstance(NS_PERSISTENTPROPERTIES_CONTRACTID);
00063   if (mProps) {
00064     rv = mProps->Load(inStr);
00065     if (NS_FAILED(rv))
00066       mProps = nsnull;
00067   }
00068 }
00069 
00070 PRBool nsGREResProperties::DidLoad() const
00071 {
00072   return mProps != nsnull;
00073 }
00074 
00075 nsresult nsGREResProperties::Get(const nsAString& aKey, nsAString& aValue)
00076 {
00077   if (!mProps)
00078     return NS_ERROR_NOT_INITIALIZED;
00079 
00080   return mProps->GetStringProperty(NS_ConvertUTF16toUTF8(aKey), aValue);
00081 }