/*
    Adobe Systems Incorporated(r) Source Code License Agreement
    Copyright(c) 2005 Adobe Systems Incorporated. All rights reserved.
    
    Please read this Source Code License Agreement carefully before using
    the source code.
    
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    distribute this source code and such derivative works in source or 
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    derived from the source code without prior written permission.
    
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    THIS SOURCE CODE IS PROVIDED "AS IS" AND "WITH ALL FAULTS", WITHOUT 
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*/

package com.adobe.xml.syndication.rss
{
    import com.adobe.xml.syndication.Namespaces;
    import com.adobe.xml.syndication.NewsParser;
    import com.adobe.xml.syndication.ParsingTools;

    /**
     * Class for parsing RSS 1.0 feeds. Note: the RSS10 class cannot be use
     * to parse RSS versions 0.91, 0.92, or 2.0.  Use the RSS20 class for all
     * other versions of RSS other than 1.0.
     * 
     * @langversion ActionScript 3.0
     * @playerversion Flash 8.5
     * @tiptext
     * 
     * @see http://web.resource.org/rss/1.0/
     */    
    public class RSS10
        extends NewsParser
            implements IRSS
    {
        private var _channel:Channel10;
        private var _image:Image10;
        private var _items:Array;
        private var rss:Namespace = Namespaces.RSS_NS;

        /**
         * Create a new RSS10 instance.
         *
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function RSS10()
        {
            super();
        }

        /**
         * The Channel10 object associated with this feed.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get channel():IChannel
        {
            if (this._channel == null)
            {
                this._channel = new Channel10(this.x.rss::channel);
            }
            return this._channel;
        }

        /**
         * The Image10 object associated with this feed.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get image():IImage
        {
            if (this._image == null)
            {
                this._image = new Image10(this.x.rss::image);
            }
            return this._image;
        }

        /**
         * An array of Item10 objects associated with this feed.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get items():Array
        {
            if (ParsingTools.nullCheck(this.x.rss::item) == null)
            {
                return null;
            }

            if (this._items == null)
            {
                this._items = new Array();
                var i:XML;
                for each (i in this.x.rss::item)
                {
                    this._items.push(new Item10(XMLList(i)));
                }
            }
            return this._items;
        }
    }
}