/* -*- Mode: C++; tab-width: 40; 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.org code.
 *
 * The Initial Developer of the Original Code is
 *   Mozilla Foundation
 * Portions created by the Initial Developer are Copyright (C) 2009-2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Vladimir Vukicevic <vladimir@pobox.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 "nsToolkit.h"
#include "nsGUIEvent.h"
#include "nsWidgetAtoms.h"

NS_IMPL_ISUPPORTS1(nsToolkit, nsIToolkit)

// why do we have this?
static PRUintn gToolkitTLSIndex = 0;

nsToolkit::nsToolkit()
{
}

nsToolkit::~nsToolkit()
{
    PR_SetThreadPrivate(gToolkitTLSIndex, nsnull);
}

NS_IMETHODIMP
nsToolkit::Init(PRThread *aThread)
{
    nsWidgetAtoms::RegisterAtoms();
    return NS_OK;
}

NS_METHOD
NS_GetCurrentToolkit(nsIToolkit* *aResult)
{
    nsCOMPtr<nsIToolkit> toolkit = nsnull;
    nsresult rv = NS_OK;
    PRStatus status;

    if (gToolkitTLSIndex == 0) {
        status = PR_NewThreadPrivateIndex(&gToolkitTLSIndex, NULL);
        if (PR_FAILURE == status)
            rv = NS_ERROR_FAILURE;
    }

    if (NS_FAILED(rv))
        return rv;

    toolkit = (nsIToolkit*) PR_GetThreadPrivate(gToolkitTLSIndex);
    if (!toolkit) {
        toolkit = new nsToolkit();

        if (toolkit) {
            toolkit->Init(PR_GetCurrentThread());

            PR_SetThreadPrivate(gToolkitTLSIndex, (void*)toolkit.get());
        } else {
            rv = NS_ERROR_OUT_OF_MEMORY;
        }
    }

    NS_IF_ADDREF(*aResult = toolkit);

    return rv;
}
