interface/modules/zend_modules/library/Zend/Form/View/Helper/FormImage.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Form\View\Helper;
  11
  12 use Zend\Form\ElementInterface;
  13 use Zend\Form\Exception;
  14
  15 class FormImage extends FormInput
  16 {
  17     /**
  18      * Attributes valid for the input tag type="image"
  19      *
  20      * @var array
  21      */
  22     protected $validTagAttributes = array(
  23         'name'           => true,
  24         'alt'            => true,
  25         'autofocus'      => true,
  26         'disabled'       => true,
  27         'form'           => true,
  28         'formaction'     => true,
  29         'formenctype'    => true,
  30         'formmethod'     => true,
  31         'formnovalidate' => true,
  32         'formtarget'     => true,
  33         'height'         => true,
  34         'src'            => true,
  35         'type'           => true,
  36         'width'          => true,
  37     );
  38
  39     /**
  40      * Render a form <input> element from the provided $element
  41      *
  42      * @param  ElementInterface $element
  43      * @throws Exception\DomainException
  44      * @return string
  45      */
  46     public function render(ElementInterface $element)
  47     {
  48         $src = $element->getAttribute('src');
  49         if (empty($src)) {
  50             throw new Exception\DomainException(sprintf(
  51                 '%s requires that the element has an assigned src; none discovered',
  52                 __METHOD__
  53             ));
  54         }
  55
  56         return parent::render($element);
  57     }
  58
  59     /**
  60      * Determine input type to use
  61      *
  62      * @param  ElementInterface $element
  63      * @return string
  64      */
  65     protected function getType(ElementInterface $element)
  66     {
  67         return 'image';
  68     }
  69 }