root/trunk/patForms/Observer/ErrorAttributes.php

<?php
/**
 * patForms observer base class
 *
 * $Id$
 *
 * @access        protected
 * @package        patForms
 * @subpackage    Observers
 */

/**
 * patForms observer base class
 *
 * @access        protected
 * @package        patForms
 * @subpackage    Observers
 * @author        Stephan Schmidt <schst@php-tools.net>
 * @license        LGPL, see license.txt for details
 * @link        http://www.php-tools.net
 */
class patForms_Observer_ErrorAttributes extends patForms_Observer
{
   /**
    * attributes that will be set if the status is 'error'
    *
    * @access    private
    * @param    array
    */
    var $_errorAttributes = array();

   /**
    * set the attributes that should be used on error
    *
    * @access    public
    * @param    array        new attributes
    */
    function setAttributes( $atts )
    {
        $this->_errorAttributes = $atts;
    }

   /**
    * method called by patForms or any patForms_Element to signalise
    * an event
    *
    * @access    public
    * @param    object        Either a patForms or patForms_Element object
    * @param    string        Property, that has changed (currently only 'status' is possible)
    * @param    mixed        new value of the property
    * @return    boolean     should always return true
    */
    function notify( &$container, $property, $value )
    {
        /**
         * act only on a status change
         */
        if( $property != 'status' )
            return true;

        if( $value != 'error' )
            return true;
            
        $container->setAttributes( $this->_errorAttributes );
        return true;
    }
}
?>