define('package/quiqqer/faq/bin/Category', [

    'qui/QUI',
    'qui/controls/Control'

], function(QUI, QUIControl)
{
    "use strict";

    return new Class({

        Extends : QUIControl,
        Type    : 'package/quiqqer/faq/bin/Category',

        Binds : [
            '$onImport',
            'scrollToTop',
            '$scrollToClick'
        ],

        initialize : function(options)
        {
            this.parent( options );

            this.addEvents({
                onImport: this.$onImport
            });
        },

        /**
         * event : on import
         */
        $onImport : function()
        {
            var links   = this.getElm().getElements( '.quiqqer-faq-list li a'),
                topList = this.getElm().getElements( '[href="#top"]' );

            for ( var i = 0, len = links.length; i < len; i++ ) {
                links[ i ].addEvent( 'click', this.$scrollToClick );
            }

            topList.addEvent( 'click', this.scrollToTop );

            // check location
            if ( !window.location.hash || window.location.hash === '' ) {
                return;
            }

            var Article = this.getElm().getElement( window.location.hash );

            if ( Article ) {
                new Fx.Scroll( window ).toElement( Article );
            }
        },

        /**
         * event : on click at a faq entry
         *
         * @param {DOMEvent} event - click event
         */
        $scrollToClick : function(event)
        {
            if ( typeOf( event ) === 'domevent' ) {
                event.stop();
            }

            var Target = event.target,
                href   = Target.get( 'href' );

            href = href.split( '#' );

            if ( typeof href[ 1 ] === 'undefined' ) {
                return;
            }

            var Article = this.getElm().getElement( '#'+ href[ 1 ] );

            if ( !Article ) {
                return;
            }

            new Fx.Scroll(window, {
                onComplete: function()
                {
                    window.location = '#'+ href[ 1 ];
                }
            }).toElement( Article );
        },

        /**
         * Scroll the window to top and clear the anchor
         *
         * @param {DOMEvent} [event] - (optional) click dom event
         */
        scrollToTop : function(event)
        {
            if ( typeOf( event ) === 'domevent' ) {
                event.stop();
            }

            new Fx.Scroll(window, {
                onComplete: function() {
                    window.location = '#';
                }
            }).toTop();
        }
    });
});