xpcom/build/Omnijar.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   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
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   8  * http://www.mozilla.org/MPL/
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  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
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  15  * The Original Code is Mozilla code.
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  17  * The Initial Developer of the Original Code is
  18  * Mozilla Foundation.
  19  * Portions created by the Initial Developer are Copyright (C) 2010
  20  * the Initial Developer. All Rights Reserved.
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  22  * Contributor(s):
  23  *   Michael Wu <mwu@mozilla.com>
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  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
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  34  * the provisions above, a recipient may use your version of this file under
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  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include "Omnijar.h"
  40
  41 #include "nsILocalFile.h"
  42 #include "nsXULAppAPI.h"
  43 #include "nsZipArchive.h"
  44
  45 static nsILocalFile* sOmnijarPath = nsnull;
  46 static nsZipArchive* sOmnijarReader = nsnull;
  47
  48 static void
  49 SetupReader()
  50 {
  51     if (!sOmnijarPath) {
  52         return;
  53     }
  54
  55     nsZipArchive* zipReader = new nsZipArchive();
  56     if (!zipReader) {
  57         NS_IF_RELEASE(sOmnijarPath);
  58         return;
  59     }
  60
  61     if (NS_FAILED(zipReader->OpenArchive(sOmnijarPath))) {
  62         delete zipReader;
  63         NS_IF_RELEASE(sOmnijarPath);
  64         return;
  65     }
  66
  67     sOmnijarReader = zipReader;
  68 }
  69
  70 nsILocalFile*
  71 mozilla::OmnijarPath()
  72 {
  73     if (!sOmnijarReader)
  74         SetupReader();
  75
  76     return sOmnijarPath;
  77 }
  78
  79 nsZipArchive*
  80 mozilla::OmnijarReader()
  81 {
  82     if (!sOmnijarReader)
  83         SetupReader();
  84
  85     return sOmnijarReader;
  86 }
  87
  88 void
  89 mozilla::SetOmnijar(nsILocalFile* aPath)
  90 {
  91     NS_IF_RELEASE(sOmnijarPath);
  92     if (sOmnijarReader) {
  93         sOmnijarReader->CloseArchive();
  94         delete sOmnijarReader;
  95         sOmnijarReader = nsnull;
  96     }
  97
  98     sOmnijarPath = aPath;
  99     NS_IF_ADDREF(sOmnijarPath);
 100 }
 101