/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

* 

* Description:

*

*/

using System;

using System.IO;

using System.Xml;

using System.Text;

using System.Collections.Generic;

using SymbianTree;

using SymbianUtils;

using SymbianXmlInputLib.Elements;

using SymbianXmlInputLib.Elements.Types.Command;

namespace SymbianXmlInputLib.Parser.Nodes

{

    public class SXILParserNodeCommand : SXILParserNode

    {

        #region Constructors

        public SXILParserNodeCommand()

        {

        }

        public SXILParserNodeCommand( string aDescription )

            : base( aDescription )

        {

        }

        #endregion

        #region From SXILParserNode

        public override bool IsMulti

        {

            get

            {

                return true;

            }

        }

        public override void XmlParse( XmlNode aNode )

        {

            XmlAttributeCollection attribs = aNode.Attributes;

            if ( attribs.Count < 1 || attribs[ "name" ] == null )

            {

                throw new ArgumentException( "Mandatory name node missing" );

            }

            XmlAttribute nameAttribute = attribs[ "name" ];

            string name = nameAttribute.Value.Trim();

            // Get details if present

            string details = aNode.InnerText.Trim();

            SXILElementCommand command = new SXILElementCommand( name, details );

            base.Document.CurrentNode.Add( command );

            iHandled = true;

        }

        public override bool CanHandle( XmlNode aNode )

        {

            bool ret = false;

            // We must support categories that contain multiple commands

            // therefore we must provide a means of preventing an already-populated command from

            // processing multiple xml tags.

            if ( !iHandled )

            {

                // This command instance has not yet successfully processed a command, so

                // it's okay to at least attempt to handle it - providing the xml tag is

                // our expected "command" name.

                ret = ( aNode.Name.ToUpper() == KXmlTagName );

            }

            //

            return ret;

        }

        #endregion

        #region Internal constants

        private const string KXmlTagName = "COMMAND";

        #endregion

        #region Data members

        private bool iHandled = false;

        #endregion

    }

}