xpcom/build/Omnijar.cpp
author Karl Tomlinson <karlt+@karlt.net>
Thu, 03 Feb 2011 12:22:09 -0500
changeset 61852 9a9f6f3eec6ba9acb0249e3d8e4310770c40d59d
parent 49360 f80832cefeb5ae5743147b2175a690ed4816a8e0
child 63725 b9e6454362ef8a051ec8feb557fb2e2e4071c95e
permissions -rw-r--r--
b=621962 don't realize unnecessary windows for stock image widget r=roc

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla 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/MPL/
 *
 * 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 code.
 *
 * The Initial Developer of the Original Code is
 * Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Michael Wu <mwu@mozilla.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "Omnijar.h"

#include "nsILocalFile.h"
#include "nsXULAppAPI.h"
#include "nsZipArchive.h"

static nsILocalFile* sOmnijarPath = nsnull;
static nsZipArchive* sOmnijarReader = nsnull;

static void
SetupReader()
{
    if (!sOmnijarPath) {
        return;
    }

    nsZipArchive* zipReader = new nsZipArchive();
    if (!zipReader) {
        NS_IF_RELEASE(sOmnijarPath);
        return;
    }

    if (NS_FAILED(zipReader->OpenArchive(sOmnijarPath))) {
        delete zipReader;
        NS_IF_RELEASE(sOmnijarPath);
        return;
    }

    sOmnijarReader = zipReader;
}

nsILocalFile*
mozilla::OmnijarPath()
{
    if (!sOmnijarReader)
        SetupReader();

    return sOmnijarPath;
}

nsZipArchive*
mozilla::OmnijarReader()
{
    if (!sOmnijarReader)
        SetupReader();

    return sOmnijarReader;
}

void
mozilla::SetOmnijar(nsILocalFile* aPath)
{
    NS_IF_RELEASE(sOmnijarPath);
    if (sOmnijarReader) {
        sOmnijarReader->CloseArchive();
        delete sOmnijarReader;
        sOmnijarReader = nsnull;
    }

    sOmnijarPath = aPath;
    NS_IF_ADDREF(sOmnijarPath);
}