/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
 */

import com.sun.star.uno.UnoRuntime;
import com.sun.star.accessibility.XAccessibleContext;
import com.sun.star.accessibility.XAccessibleExtendedComponent;


class AccessibleExtendedComponentHandler
    extends NodeHandler
{
    public NodeHandler createHandler (XAccessibleContext xContext)
    {
        XAccessibleExtendedComponent xEComponent =
            UnoRuntime.queryInterface (
            XAccessibleExtendedComponent.class, xContext);
        if (xEComponent != null)
            return new AccessibleExtendedComponentHandler (xEComponent);
        else
            return null;
    }

    public AccessibleExtendedComponentHandler ()
    {
    }

    public AccessibleExtendedComponentHandler (XAccessibleExtendedComponent xEComponent)
    {
        if (xEComponent != null)
            maChildList.setSize (0);
    }

    private static XAccessibleExtendedComponent getComponent (AccTreeNode aNode)
    {
        return UnoRuntime.queryInterface (
            XAccessibleExtendedComponent.class,
            aNode.getContext());
    }


    public AccessibleTreeNode createChild (AccessibleTreeNode aParent, int nIndex)
    {
        AccessibleTreeNode aChild = null;
        if (aParent instanceof AccTreeNode)
        {
            XAccessibleExtendedComponent xEComponent = getComponent ((AccTreeNode)aParent);

            if (xEComponent != null)
            {
                int nColor;
                switch( nIndex )
                {
                    case 0:
                        nColor = xEComponent.getForeground();
                        aChild = new StringNode ("Deprecated Foreground color: R"
                            +       (nColor>>16&0xff)
                            + "G" + (nColor>>8&0xff)
                            + "B" + (nColor>>0&0xff)
                            + "A" + (nColor>>24&0xff),
                            aParent);
                        break;
                    case 1:
                        nColor = xEComponent.getBackground();
                        aChild = new StringNode ("Deprecated Background color: R"
                            +       (nColor>>16&0xff)
                            + "G" + (nColor>>8&0xff)
                            + "B" + (nColor>>0&0xff)
                            + "A" + (nColor>>24&0xff),
                            aParent);
                        break;
                }
            }
        }
        return aChild;
    }
}
