1: <?php
 2: /**
 3:  * Horde_Form_Action_sum_fields is a Horde_Form_Action that sets the target
 4:  * field to the sum of one or more other numeric fields.
 5:  *
 6:  * The params array should contain the names of the fields which will be
 7:  * summed.
 8:  *
 9:  * Copyright 2002-2012 Horde LLC (http://www.horde.org/)
10:  *
11:  * See the enclosed file COPYING for license information (LGPL). If you
12:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
13:  *
14:  * @author  Matt Kynaston <matt@kynx.org>
15:  * @package Form
16:  */
17: class Horde_Form_Action_sum_fields extends Horde_Form_Action {
18: 
19:     var $_trigger = array('onload');
20: 
21:     function getActionScript(&$form, $renderer, $varname)
22:     {
23:         Horde::addScriptFile('form_helpers.js', 'horde');
24: 
25:         $form_name = $form->getName();
26:         $fields = "'" . implode("','", $this->_params) . "'";
27:         $js = array();
28:         $js[] = sprintf('document.forms[\'%s\'].elements[\'%s\'].disabled = true;',
29:                         $form_name,
30:                         $varname);
31:         foreach ($this->_params as $field) {
32:             $js[] = sprintf("addEvent(document.forms['%1\$s'].elements['%2\$s'], \"onchange\", \"sumFields(document.forms['%1\$s'], '%3\$s', %4\$s);\");",
33:                             $form_name,
34:                             $field,
35:                             $varname,
36:                             $fields);
37:         }
38: 
39:         return implode("\n", $js);
40:     }
41: 
42: }
43: