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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_Form
* @subpackage Decorator
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
/** Zend_Form_Decorator_Abstract */
/**
* Zend_Form_Decorator_Image
*
* Accepts the options:
* - separator: separator to use between image and content (defaults to PHP_EOL)
* - placement: whether to append or prepend label to content (defaults to append)
* - tag: if set, used to wrap the label in an additional HTML tag
*
* Any other options passed will be used as HTML attributes of the image tag.
*
* @category Zend
* @package Zend_Form
* @subpackage Decorator
* @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 $Id$
*/
class Zend_Form_Decorator_Image extends Zend_Form_Decorator_Abstract
{
/**
* Attributes that should not be passed to helper
* @var array
*/
protected $_attribBlacklist = array('helper', 'placement', 'separator', 'tag');
/**
* Default placement: append
* @var string
*/
protected $_placement = 'APPEND';
/**
* HTML tag with which to surround image
* @var string
*/
protected $_tag;
/**
* Set HTML tag with which to surround label
*
* @param string $tag
* @return Zend_Form_Decorator_Image
*/
public function setTag($tag)
{
$this->_tag = (string) $tag;
return $this;
}
/**
* Get HTML tag, if any, with which to surround label
*
* @return void
*/
public function getTag()
{
if (null === $this->_tag) {
$tag = $this->getOption('tag');
if (null !== $tag) {
$this->removeOption('tag');
$this->setTag($tag);
}
return $tag;
}
return $this->_tag;
}
/**
* Get attributes to pass to image helper
*
* @return array
*/
public function getAttribs()
{
$attribs = $this->getOptions();
if (null !== ($element = $this->getElement())) {
$attribs['alt'] = $element->getLabel();
$attribs = array_merge($attribs, $element->getAttribs());
}
foreach ($this->_attribBlacklist as $key) {
if (array_key_exists($key, $attribs)) {
unset($attribs[$key]);
}
}
return $attribs;
}
/**
* Render a form image
*
* @param string $content
* @return string
*/
public function render($content)
{
$element = $this->getElement();
$view = $element->getView();
if (null === $view) {
return $content;
}
$tag = $this->getTag();
$placement = $this->getPlacement();
$separator = $this->getSeparator();
$name = $element->getFullyQualifiedName();
$attribs = $this->getAttribs();
$attribs['id'] = $element->getId();
$image = $view->formImage($name, $element->getImageValue(), $attribs);
if (null !== $tag) {
$decorator = new Zend_Form_Decorator_HtmlTag();
$decorator->setOptions(array('tag' => $tag));
$image = $decorator->render($image);
}
switch ($placement) {
case self::PREPEND:
return $image . $separator . $content;
case self::APPEND:
default:
return $content . $separator . $image;
}
}
}
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