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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Dojo
  * @subpackage View
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /** Zend_Dojo_View_Helper_Dijit */
 // require_once 'Zend/Dojo/View/Helper/Dijit.php';
 
 /**
  * Abstract class for Dojo Slider dijits
  *
  * @uses       Zend_Dojo_View_Helper_Dijit
  * @package    Zend_Dojo
  * @subpackage View
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
   */
 abstract class Zend_Dojo_View_Helper_Slider extends Zend_Dojo_View_Helper_Dijit
 {
     /**
      * Dojo module to use
      * @var string
      */
     protected $_module = 'dijit.form.Slider';
 
     /**
      * Required slider parameters
      * @var array
      */
     protected $_requiredParams = array('minimum', 'maximum', 'discreteValues');
 
     /**
      * Slider type -- vertical or horizontal
      * @var string
      */
     protected $_sliderType;
 
     /**
      * dijit.form.Slider
      *
      * @param  int $id
      * @param  mixed $value
      * @param  array $params  Parameters to use for dijit creation
      * @param  array $attribs HTML attributes
      * @return string
      */
     public function prepareSlider($id, $value = null, array $params = array(), array $attribs = array())
     {
         $this->_sliderType = strtolower($this->_sliderType);
 
         // Prepare two items: a hidden element to store the value, and the slider
         $hidden = $this->_renderHiddenElement($id, $value);
         $hidden = preg_replace('/(name=")([^"]*)"/', 'id="$2" $1$2"', $hidden);
 
         foreach ($this->_requiredParams as $param) {
             if (!array_key_exists($param, $params)) {
                 // require_once 'Zend/Dojo/View/Exception.php';
                 throw new Zend_Dojo_View_Exception('prepareSlider() requires minimally the "minimum", "maximum", and "discreteValues" parameters');
             }
         }
 
         $content = '';
         $attribs['value'] = $value;
 
         if (!array_key_exists('onChange', $attribs)) {
             $attribs['onChange'] = "dojo.byId('" . $id . "').value = arguments[0];";
         }
 
         $id  = str_replace('][', '-', $id);
         $id  = str_replace(array('[', ']'), '-', $id);
         $id  = rtrim($id, '-');
         $id .= '-slider';
 
         switch ($this->_sliderType) {
             case 'horizontal':
                 if (array_key_exists('topDecoration', $params)) {
                     $content .= $this->_prepareDecoration('topDecoration', $id, $params['topDecoration']);
                     unset($params['topDecoration']);
                 }
 
                 if (array_key_exists('bottomDecoration', $params)) {
                     $content .= $this->_prepareDecoration('bottomDecoration', $id, $params['bottomDecoration']);
                     unset($params['bottomDecoration']);
                 }
 
                 if (array_key_exists('leftDecoration', $params)) {
                     unset($params['leftDecoration']);
                 }
 
                 if (array_key_exists('rightDecoration', $params)) {
                     unset($params['rightDecoration']);
                 }
                 break;
             case 'vertical':
                 if (array_key_exists('leftDecoration', $params)) {
                     $content .= $this->_prepareDecoration('leftDecoration', $id, $params['leftDecoration']);
                     unset($params['leftDecoration']);
                 }
 
                 if (array_key_exists('rightDecoration', $params)) {
                     $content .= $this->_prepareDecoration('rightDecoration', $id, $params['rightDecoration']);
                     unset($params['rightDecoration']);
                 }
 
                 if (array_key_exists('topDecoration', $params)) {
                     unset($params['topDecoration']);
                 }
 
                 if (array_key_exists('bottomDecoration', $params)) {
                     unset($params['bottomDecoration']);
                 }
                 break;
             default:
                 // require_once 'Zend/Dojo/View/Exception.php';
                 throw new Zend_Dojo_View_Exception('Invalid slider type; slider must be horizontal or vertical');
         }
 
         return $hidden . $this->_createLayoutContainer($id, $content, $params, $attribs);
     }
 
     /**
      * Prepare slider decoration
      *
      * @param  string $position
      * @param  string $id
      * @param  array $decInfo
      * @return string
      */
     protected function _prepareDecoration($position, $id, $decInfo)
     {
         if (!in_array($position, array('topDecoration', 'bottomDecoration', 'leftDecoration', 'rightDecoration'))) {
             return '';
         }
 
         if (!is_array($decInfo)
             || !array_key_exists('labels', $decInfo)
             || !is_array($decInfo['labels'])
         ) {
             return '';
         }
 
         $id .= '-' . $position;
 
         if (!array_key_exists('dijit', $decInfo)) {
             $dijit = 'dijit.form.' . ucfirst($this->_sliderType) . 'Rule';
         } else {
             $dijit = $decInfo['dijit'];
             if ('dijit.form.' != substr($dijit, 0, 10)) {
                 $dijit = 'dijit.form.' . $dijit;
             }
         }
 
         $params  = array();
         $attribs = array();
         $labels  = $decInfo['labels'];
         if (array_key_exists('params', $decInfo)) {
             $params = $decInfo['params'];
         }
         if (array_key_exists('attribs', $decInfo)) {
             $attribs = $decInfo['attribs'];
         }
 
         $containerParams = null;
         if (array_key_exists('container', $params)) {
             $containerParams = $params['container'];
             unset($params['container']);
         }
 
         if (array_key_exists('labels', $params)) {
             $labelsParams = $params['labels'];
             unset($params['labels']);
         } else {
             $labelsParams = $params;
         }
 
         if (null === $containerParams) {
             $containerParams = $params;
         }
 
         $containerAttribs = null;
         if (array_key_exists('container', $attribs)) {
             $containerAttribs = $attribs['container'];
             unset($attribs['container']);
         }
 
         if (array_key_exists('labels', $attribs)) {
             $labelsAttribs = $attribs['labels'];
             unset($attribs['labels']);
         } else {
             $labelsAttribs = $attribs;
         }
 
         if (null === $containerAttribs) {
             $containerAttribs = $attribs;
         }
 
         $containerParams['container'] = $position;
         $labelsParams['container']    = $position;
 
         $labelList = $this->_prepareLabelsList($id, $labelsParams, $labelsAttribs, $labels);
 
         $dijit = 'dijit.form.' . ucfirst($this->_sliderType) . 'Rule';
         $containerAttribs['id'] = $id;
         $containerAttribs = $this->_prepareDijit($containerAttribs, $containerParams, 'layout', $dijit);
         $containerHtml = '<div' . $this->_htmlAttribs($containerAttribs) . "></div>\n";
 
         switch ($position) {
             case 'topDecoration':
             case 'leftDecoration':
                 return $labelList . $containerHtml;
             case 'bottomDecoration':
             case 'rightDecoration':
                 return $containerHtml . $labelList;
         }
     }
 
     /**
      * Prepare slider label list
      *
      * @param  string $id
      * @param  array $params
      * @param  array $attribs
      * @param  array $labels
      * @return string
      */
     protected function _prepareLabelsList($id, array $params, array $attribs, array $labels)
     {
         $attribs['id'] = $id . '-labels';
         $dijit = 'dijit.form.' . ucfirst($this->_sliderType) . 'RuleLabels';
         $attribs = $this->_prepareDijit($attribs, $params, 'layout', $dijit);
 
         return $this->view->htmlList($labels, true, $attribs);
     }
 }