library/Zend/Form/Decorator/Captcha.php

   1 <?php
   2 /**
   3  * Zend Framework
   4  *
   5  * LICENSE
   6  *
   7  * This source file is subject to the new BSD license that is bundled
   8  * with this package in the file LICENSE.txt.
   9  * It is also available through the world-wide-web at this URL:
  10  * http://framework.zend.com/license/new-bsd
  11  * If you did not receive a copy of the license and are unable to
  12  * obtain it through the world-wide-web, please send an email
  13  * to license@zend.com so we can send you a copy immediately.
  14  *
  15  * @category   Zend
  16  * @package    Zend_Form
  17  * @subpackage Decorator
  18  * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
  19  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  20  */
  21
  22 /** Zend_Form_Decorator_Abstract */
  23 require_once 'Zend/Form/Decorator/Abstract.php';
  24
  25 /**
  26  * Captcha generic decorator
  27  *
  28  * Adds captcha adapter output
  29  *
  30  * @category   Zend
  31  * @package    Zend_Form
  32  * @subpackage Decorator
  33  * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
  34  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  35  * @version    $Id: Captcha.php 16971 2009-07-22 18:05:45Z mikaelkael $
  36  */
  37 class Zend_Form_Decorator_Captcha extends Zend_Form_Decorator_Abstract
  38 {
  39     /**
  40      * Render captcha
  41      *
  42      * @param  string $content
  43      * @return string
  44      */
  45     public function render($content)
  46     {
  47         $element = $this->getElement();
  48         if (!method_exists($element, 'getCaptcha')) {
  49             return $content;
  50         }
  51
  52         $view    = $element->getView();
  53         if (null === $view) {
  54             return $content;
  55         }
  56
  57         $placement = $this->getPlacement();
  58         $separator = $this->getSeparator();
  59
  60         $captcha = $element->getCaptcha();
  61         $markup  = $captcha->render($view, $element);
  62         switch ($placement) {
  63             case 'PREPEND':
  64                 $content = $markup . $separator .  $content;
  65                 break;
  66             case 'APPEND':
  67             default:
  68                 $content = $content . $separator . $markup;
  69         }
  70         return $content;
  71     }
  72 }