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<?php
/**
 * @package     Joomla.Libraries
 * @subpackage  HTML
 *
 * @copyright   Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * Searchtools elements.
 *
 * @package     Joomla.Libraries
 * @subpackage  HTML
 * @since       3.2
 */
abstract class JHtmlSearchtools
{
	/**
	 * @var    array  Array containing information for loaded files
	 * @since  3.2
	 */
	protected static $loaded = array();

/**
	 * Load the main Searchtools libraries
	 *
	 * @return  void
	 *
	 * @since   3.2
	 */
	public static function main()
	{
		// Only load once
		if (empty(static::$loaded[__METHOD__]))
		{
			// Requires jQuery but allows to skip its loading
			if ($loadJquery = (!isset($options['loadJquery']) || $options['loadJquery'] != 0))
			{
				JHtml::_('jquery.framework');
			}

// Load the jQuery plugin && CSS
			JHtml::_('script', 'jui/jquery.searchtools.min.js', false, true);
			JHtml::_('stylesheet', 'jui/jquery.searchtools.css', false, true);

static::$loaded[__METHOD__] = true;
		}

return;
	}

/**
	 * Load searchtools for a specific form
	 *
	 * @param   mixed  $selector  Is debugging mode on? [optional]
	 * @param   array  $options   Optional array of parameters for search tools
	 *
	 * @return  void
	 *
	 * @since   3.2
	 */
	public static function form($selector = '.js-stools-form', $options = array())
	{
		$sig = md5(serialize(array($selector, $options)));

// Only load once
		if (!isset(static::$loaded[__METHOD__][$sig]))
		{
			// Include Bootstrap framework
			static::main();

// Add the form selector to the search tools options
			$options['formSelector'] = $selector;

// Generate options with default values
			$options = static::options2Jregistry($options);

$doc = JFactory::getDocument();
			$script = "
				(function($){
					$(document).ready(function() {
						$('" . $selector . "').searchtools(
							" . $options->toString() . "
						);
					});
				})(jQuery);
			";
			$doc->addScriptDeclaration($script);

static::$loaded[__METHOD__][$sig] = true;
		}

return;
	}

/**
	 * Function to receive & pre-process javascript options
	 *
	 * @param   mixed  $options  Associative array/JRegistry object with options
	 *
	 * @return  JRegistry        Options converted to JRegistry object
	 */
	private static function options2Jregistry($options)
	{
		// Support options array
		if (is_array($options))
		{
			$options = new JRegistry($options);
		}

if (!($options instanceof Jregistry))
		{
			$options = new JRegistry;
		}

return $options;
	}

/**
	 * Method to sort a column in a grid
	 *
	 * @param   string  $title          The link title
	 * @param   string  $order          The order field for the column
	 * @param   string  $direction      The current direction
	 * @param   mixed   $selected       The selected ordering
	 * @param   string  $task           An optional task override
	 * @param   string  $new_direction  An optional direction for the new column
	 * @param   string  $tip            An optional text shown as tooltip title instead of $title
	 * @param   string  $icon           Icon to show
	 * @param   string  $formName       Name of the form to submit
	 *
	 * @return  string
	 */
	public static function sort($title, $order, $direction = 'asc', $selected = 0, $task = null, $new_direction = 'asc', $tip = '', $icon = null, $formName = 'adminForm')
	{
		$direction = strtolower($direction);
		$orderIcons = array('icon-arrow-up-3', 'icon-arrow-down-3');
		$index = (int) ($direction == 'desc');

if ($order != $selected)
		{
			$direction = $new_direction;
		}
		else
		{
			$direction = ($direction == 'desc') ? 'asc' : 'desc';
		}

// Create an object to pass it to the layouts
		$data            = new stdClass;
		$data->order     = $order;
		$data->direction = $direction;
		$data->selected  = $selected;
		$data->task      = $task;
		$data->tip       = $tip;
		$data->title     = $title;
		$data->orderIcon = $orderIcons[$index];
		$data->icon      = $icon;
		$data->formName  = $formName;

return JLayoutHelper::render('joomla.searchtools.grid.sort', $data);
	}
}

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