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/**
 * 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_View
 * @subpackage Helper
 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: FormElement.php 24594 2012-01-05 21:27:01Z matthew $
 */

/**
 * @see Zend_View_Helper_HtmlElement
 */
//--//require_once &#039;Zend/View/Helper/HtmlElement.php&#039;;

/**
 * Base helper for form elements.  Extend this, don&#039;t use it on its own.
 *
 * @category   Zend
 * @package    Zend_View
 * @subpackage Helper
 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
abstract class Zend_View_Helper_FormElement extends Zend_View_Helper_HtmlElement
{
    /**
     * @var Zend_Translate
     */
    protected $_translator;

    /**
     * Get translator
     *
     * @return Zend_Translate
     */
    public function getTranslator()
    {
         return $this-&gt;_translator;
    }

    /**
     * Set translator
     *
     * @param  Zend_Translate $translator
     * @return Zend_View_Helper_FormElement
     */
    public function setTranslator($translator = null)
    {
        if (null === $translator) {
            $this-&gt;_translator = null;
        } elseif ($translator instanceof Zend_Translate_Adapter) {
            $this-&gt;_translator = $translator;
        } elseif ($translator instanceof Zend_Translate) {
            $this-&gt;_translator = $translator-&gt;getAdapter();
        } else {
            //--//require_once &#039;Zend/View/Exception.php&#039;;
            $e = new Zend_View_Exception(&#039;Invalid translator specified&#039;);
            $e-&gt;setView($this-&gt;view);
            throw $e;
        }
         return $this;
    }

    /**
     * Converts parameter arguments to an element info array.
     *
     * E.g, formExample($name, $value, $attribs, $options, $listsep) is
     * the same thing as formExample(array(&#039;name&#039; =&gt; ...)).
     *
     * Note that you cannot pass a &#039;disable&#039; param; you need to pass
     * it as an &#039;attribs&#039; key.
     *
     * @access protected
     *
     * @return array An element info array with keys for name, value,
     * attribs, options, listsep, disable, and escape.
     */
    protected function _getInfo($name, $value = null, $attribs = null,
        $options = null, $listsep = null
    ) {
        // the baseline info.  note that $name serves a dual purpose;
        // if an array, it&#039;s an element info array that will override
        // these baseline values.  as such, ignore it for the &#039;name&#039;
        // if it&#039;s an array.
        $info = array(
            &#039;name&#039;    =&gt; is_array($name) ? &#039;&#039; : $name,
            &#039;id&#039;      =&gt; is_array($name) ? &#039;&#039; : $name,
            &#039;value&#039;   =&gt; $value,
            &#039;attribs&#039; =&gt; $attribs,
            &#039;options&#039; =&gt; $options,
            &#039;listsep&#039; =&gt; $listsep,
            &#039;disable&#039; =&gt; false,
            &#039;escape&#039;  =&gt; true,
        );

        // override with named args
        if (is_array($name)) {
            // only set keys that are already in info
            foreach ($info as $key =&gt; $val) {
                if (isset($name[$key])) {
                    $info[$key] = $name[$key];
                }
            }

            // If all helper options are passed as an array, attribs may have
            // been as well
            if (null === $attribs) {
                $attribs = $info[&#039;attribs&#039;];
            }
        }

        $attribs = (array)$attribs;

        // Normalize readonly tag
        if (array_key_exists(&#039;readonly&#039;, $attribs)) {
            $attribs[&#039;readonly&#039;] = &#039;readonly&#039;;
        }

        // Disable attribute
        if (array_key_exists(&#039;disable&#039;, $attribs)) {
           if (is_scalar($attribs[&#039;disable&#039;])) {
                // disable the element
                $info[&#039;disable&#039;] = (bool)$attribs[&#039;disable&#039;];
            } else if (is_array($attribs[&#039;disable&#039;])) {
                $info[&#039;disable&#039;] = $attribs[&#039;disable&#039;];
            }
        }

        // Set ID for element
        if (array_key_exists(&#039;id&#039;, $attribs)) {
            $info[&#039;id&#039;] = (string)$attribs[&#039;id&#039;];
        } else if (&#039;&#039; !== $info[&#039;name&#039;]) {
            $info[&#039;id&#039;] = trim(strtr($info[&#039;name&#039;],
                                     array(&#039;[&#039; =&gt; &#039;-&#039;, &#039;]&#039; =&gt; &#039;&#039;)), &#039;-&#039;);
        }
        
        // Remove NULL name attribute override
        if (array_key_exists(&#039;name&#039;, $attribs) &amp;&amp; is_null($attribs[&#039;name&#039;])) {
        	unset($attribs[&#039;name&#039;]);
        }
        
        // Override name in info if specified in attribs
        if (array_key_exists(&#039;name&#039;, $attribs) &amp;&amp; $attribs[&#039;name&#039;] != $info[&#039;name&#039;]) {
            $info[&#039;name&#039;] = $attribs[&#039;name&#039;];
        }

        // Determine escaping from attributes
        if (array_key_exists(&#039;escape&#039;, $attribs)) {
            $info[&#039;escape&#039;] = (bool)$attribs[&#039;escape&#039;];
        }

        // Determine listsetp from attributes
        if (array_key_exists(&#039;listsep&#039;, $attribs)) {
            $info[&#039;listsep&#039;] = (string)$attribs[&#039;listsep&#039;];
        }

        // Remove attribs that might overwrite the other keys. We do this LAST
        // because we needed the other attribs values earlier.
        foreach ($info as $key =&gt; $val) {
            if (array_key_exists($key, $attribs)) {
                unset($attribs[$key]);
            }
        }
        $info[&#039;attribs&#039;] = $attribs;

        // done!
        return $info;
    }

    /**
     * Creates a hidden element.
     *
     * We have this as a common method because other elements often
     * need hidden elements for their operation.
     *
     * @access protected
     *
     * @param string $name The element name.
     * @param string $value The element value.
     * @param array  $attribs Attributes for the element.
     *
     * @return string A hidden element.
     */
    protected function _hidden($name, $value = null, $attribs = null)
    {
        return &#039;&lt;input type=&quot;hidden&quot;&#039;
             . &#039; name=&quot;&#039; . $this-&gt;view-&gt;escape($name) . &#039;&quot;&#039;
             . &#039; value=&quot;&#039; . $this-&gt;view-&gt;escape($value) . &#039;&quot;&#039;
             . $this-&gt;_htmlAttribs($attribs) . $this-&gt;getClosingBracket();
    }
}
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