<?php
/**
 * @version   $Id$
 * @author    RocketTheme http://www.rockettheme.com
 * @copyright Copyright (C) 2007 - 2012 RocketTheme, LLC
 * @license   http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
 */

class RokSprocket_Provider_K2_Filter_Type_User extends RokCommon_Filter_Type
{
    /**
     * @var string
     */
    protected $type = 'user';

    public function getChunkRender()
    {
        return $this->getInput();
    }

    public function getChunkSelectionRender()
    {
        return rc__('ROKCOMMON_FILTER_PICKLIST_RENDER', $this->getTypeDescription($this->getChunkType()));
    }

    public function getChunkType()
    {
        return trim((string)$this->xmlnode['name']);
    }

    public function render($name, $type, $values)
    {
        $value = (isset($values[$type]) ? $values[$type] : '');
        return rc__('ROKCOMMON_FILTER_PICKLIST_RENDER', $this->getInput($name, $value));
    }

    protected function getInput($name = RokCommon_Filter_Type::JAVASCRIPT_NAME_VARIABLE, $value = '')
    {
        $id = $this->generateIdFromName($name);
        //if ($id == '|name|') return;

        // Initialize variables.
        $html     = array();
        $groups   = $this->getGroups();
        $excluded = $this->getExcluded();
        $link     = 'index.php?option=com_users&amp;view=users&amp;layout=modal&amp;tmpl=component&amp;field=' . $name . (isset($groups) ? ('&amp;groups=' . base64_encode(json_encode($groups))) : '') . (isset($excluded) ? ('&amp;excluded=' . base64_encode(json_encode($excluded))) : '');

        // Initialize some field attributes.
        $attr = $this->xmlnode['class'] ? ' class="' . (string)$this->xmlnode['class'] . '"' : '';
        $attr .= $this->xmlnode['size'] ? ' size="' . (int)$this->xmlnode['size'] . '"' : '';

        // Initialize JavaScript field attributes.
        $onchange = (string)$this->xmlnode['onchange'];

        // Load the modal behavior script.
        JHtml::_('behavior.modal', 'a.modal');

        // Build the script.
        $script = str_replace('%ID%', $id, $this->getJSelectUser());

        // Add the script to the document head.
        if ($id != '|name|') JFactory::getDocument()->addScriptDeclaration($script);

        // Load the current username if available.
        $table = JTable::getInstance('user');
        if ($value) {
            $table->load($value);
        } else {
            $table->username = JText::_('JLIB_FORM_SELECT_USER');
        }

        $html[] = ' <input type="text" data-other="true" disabled="disabled" value="' . htmlspecialchars($table->name, ENT_COMPAT, 'UTF-8') . '"' . ' ' . $attr . ' />';
        $html[] = '     <a class="modal" title="' . JText::_('JLIB_FORM_CHANGE_USER') . '"' . ' href="' . $link . '"' . ' rel="{handler: \'iframe\', size: {x: 800, y: 500}}">';
        $html[] = '         <i class="icon tool user"></i>';
        $html[] = '     </a>';

        // Create the real field, hidden, that stored the user id.
        $html[] = '<input type="hidden" name="'.$name.'" id="'.$id.'" data-name="'.$name.'" data-key="'.$this->getChunkType().'" value="' . (int)$value . '" />';

        return implode("\n", $html);
    }

    protected function generateIdFromName($name)
    {
        $id = $name;
        $id = str_replace('][','',$id);
        $id = str_replace('[','',$id);
        $id = str_replace(']','',$id);
        return $id;
    }

    /**
     * Method to get the filtering groups (null means no filtering)
     *
     * @return  mixed  array of filtering groups or null.
     *
     * @since   11.1
     */
    protected function getGroups()
    {
        return null;
    }

    /**
     * Method to get the users to exclude from the list of users
     *
     * @return  mixed  Array of users to exclude or null to to not exclude them
     *
     * @since   11.1
     */
    protected function getExcluded()
    {
        return null;
    }

    /**
     * @return string
     */
    protected function getJavascript($name = self::JAVASCRIPT_NAME_VARIABLE, $value = null)
    {
        $script = array();
        $script[] = $this->getJSelectUser();
        $script[] = "SqueezeBox.assign(%.modal%, {parse: 'rel'});";

        $this->javascript = implode("\n", $script);

        return $this->javascript;
    }

    protected function getJSelectUser(){
        $script = array();
        $script[] = '   window.jSelectUser_%ID% = function(id, title) {';
        $script[] = "       var item = document.getElement('#%ID%'),";
        $script[] = "           row = item.getParent('[data-row=true]'),";
        $script[] = "           other = row.getElement('[data-other=true]'),";
        $script[] = "           value = item.get('value');";
        $crript[] = "";
        $script[] = '       if (value != id) {';
        $script[] = "           item.set('value', id);";
        $script[] = "           other.set('value', title);";
        $script[] = "           item.fireEvent((Browser.name == 'ie' && Browser.version <= 9) ? 'keypress' : 'input');";
        $script[] = '       }';
        $script[] = "";
        $script[] = '       SqueezeBox.close();';
        $script[] = '   }';
        $script[] = "";

        return implode("\n", $script);
    }
}
