<?php
/**
 * @package     Joomla.Platform
 * @subpackage  HTML
 *
 * @copyright   Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * Utility class for Sliders elements
 *
 * @static
 * @package     Joomla.Platform
 * @subpackage  HTML
 * @since       11.1
 */
abstract class JHtmlSliders
{

    /**
     * Creates a panes and loads the javascript behavior for it.
     *
     * @param   string  The pane identifier.
     * @param   array   An array of options.
     * @return  string
     * @since   11.1
     */
    public static function start($group = 'sliders', $params = array())
    {
        self::_loadBehavior($group,$params);
        return '<div id="'.$group.'" class="pane-sliders"><div style="display:none;"><div>';
    }

    /**
     * Close the current pane.
     *
     * @return  string
     * @since   11.1
     */
    public static function end()
    {
        return '</div></div></div>';
    }

    /**
     * Begins the display of a new panel.
     *
     * @param   string  Text to display.
     * @param   string  Identifier of the panel.
     * @return  string
     * @since   11.1
     */
    public static function panel($text, $id)
    {
        return '</div></div><div class="panel"><h3 class="pane-toggler title" id="'.$id.'"><a href="javascript:void(0);"><span>'.$text.'</span></a></h3><div class="pane-slider content">';
    }

    /**
     * Load the JavaScript behavior.
     *
     * @param   string  The pane identifier.
     * @param   array   Array of options.
     * @return  void
     * @since   11.1
     */
    protected static function _loadBehavior($group, $params = array())
    {
        static $loaded=array();
        if (!array_key_exists($group,$loaded))
        {
            $loaded[$group] = true;
            // Include mootools framework.
            JHtml::_('behavior.framework', true);

            $document = JFactory::getDocument();

            $display = (isset($params['startOffset']) && isset($params['startTransition'])  && $params['startTransition']) ? (int)$params['startOffset'] : null;
            $show = (isset($params['startOffset']) && !(isset($params['startTransition']) && $params['startTransition'])) ? (int)$params['startOffset'] : null;
            $options = '{';
            $opt['onActive']        = "function(toggler, i) {toggler.addClass('pane-toggler-down');toggler.removeClass('pane-toggler');i.addClass('pane-down');i.removeClass('pane-hide');Cookie.write('jpanesliders_".$group."',$$('div#".$group.".pane-sliders > .panel > h3').indexOf(toggler));}";
            $opt['onBackground']    = "function(toggler, i) {toggler.addClass('pane-toggler');toggler.removeClass('pane-toggler-down');i.addClass('pane-hide');i.removeClass('pane-down');if($$('div#".$group.".pane-sliders > .panel > h3').length==$$('div#".$group.".pane-sliders > .panel > h3.pane-toggler').length) Cookie.write('jpanesliders_".$group."',-1);}";
            $opt['duration']        = (isset($params['duration'])) ? (int)$params['duration'] : 300;
            $opt['display']         = (isset($params['useCookie']) && $params['useCookie']) ? JRequest::getInt('jpanesliders_' . $group, $display, 'cookie') : $display ;
            $opt['show']            = (isset($params['useCookie']) && $params['useCookie']) ? JRequest::getInt('jpanesliders_' . $group, $show, 'cookie') : $show ;
            $opt['opacity']         = (isset($params['opacityTransition']) && ($params['opacityTransition'])) ? 'true' : 'false' ;
            $opt['alwaysHide']      = (isset($params['allowAllClose']) && (!$params['allowAllClose'])) ? 'false' : 'true';
            foreach ($opt as $k => $v)
            {
                if ($v) {
                    $options .= $k.': '.$v.',';
                }
            }
            if (substr($options, -1) == ',') {
                $options = substr($options, 0, -1);
            }
            $options .= '}';

            $js = "window.addEvent('domready', function(){ new Accordion($$('div#".$group.".pane-sliders > .panel > h3.pane-toggler'), $$('div#".$group.".pane-sliders > .panel > div.pane-slider'), ".$options."); });";

            $document->addScriptDeclaration($js);
        }
    }
}