intl/uconv/src/nsGREResProperties.cpp

   1 /* vim: set sts=2 sw=2 et cin: */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is gre/res property file loading code.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Christian Biesinger <cbiesinger@web.de>.
  19  * Portions created by the Initial Developer are Copyright (C) 2005
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #include "nsGREResProperties.h"
  39 #include "nsILocalFile.h"
  40 #include "nsDirectoryServiceDefs.h"
  41 #include "nsDirectoryServiceUtils.h"
  42 #include "nsNetUtil.h"
  43
  44 nsGREResProperties::nsGREResProperties(const nsACString& aFile)
  45 {
  46   nsCOMPtr<nsIFile> file;
  47   nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(file));
  48   if (NS_FAILED(rv))
  49     return;
  50
  51   file->AppendNative(NS_LITERAL_CSTRING("res"));
  52   file->AppendNative(aFile);
  53
  54   nsCOMPtr<nsILocalFile> lf(do_QueryInterface(file));
  55   NS_ENSURE_TRUE(lf, /**/);
  56
  57   nsCOMPtr<nsIInputStream> inStr;
  58   rv = NS_NewLocalFileInputStream(getter_AddRefs(inStr), lf);
  59   if (NS_FAILED(rv))
  60     return;
  61
  62   mProps = do_CreateInstance(NS_PERSISTENTPROPERTIES_CONTRACTID);
  63   if (mProps) {
  64     rv = mProps->Load(inStr);
  65     if (NS_FAILED(rv))
  66       mProps = nsnull;
  67   }
  68 }
  69
  70 PRBool nsGREResProperties::DidLoad() const
  71 {
  72   return mProps != nsnull;
  73 }
  74
  75 nsresult nsGREResProperties::Get(const nsAString& aKey, nsAString& aValue)
  76 {
  77   if (!mProps)
  78     return NS_ERROR_NOT_INITIALIZED;
  79
  80   return mProps->GetStringProperty(NS_ConvertUTF16toUTF8(aKey), aValue);
  81 }