1: <?php
 2: /**
 3:  * Horde_Form_Action_conditional_enable is a Horde_Form_Action that
 4:  * enables or disables an element based on the value of another element
 5:  *
 6:  * Format of the $params passed to the constructor:
 7:  * <pre>
 8:  *  $params = array(
 9:  *      'target'  => '[name of element this is conditional on]',
10:  *      'enabled' => 'true' | 'false',
11:  *      'values'  => array([target values to check])
12:  *  );
13:  * </pre>
14:  *
15:  * So $params = array('foo', 'true', array(1, 2)) will enable the field this
16:  * action is attached to if the value of 'foo' is 1 or 2, and disable it
17:  * otherwise.
18:  *
19:  * Copyright 2002-2012 Horde LLC (http://www.horde.org/)
20:  *
21:  * See the enclosed file COPYING for license information (LGPL). If you
22:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
23:  *
24:  * @author  Matt Kynaston <matt@kynx.org>
25:  * @package Form
26:  */
27: class Horde_Form_Action_conditional_enable extends Horde_Form_Action {
28: 
29:     var $_trigger = array('onload');
30: 
31:     function getActionScript(&$form, $renderer, $varname)
32:     {
33:         Horde::addScriptFile('form_helpers.js', 'horde');
34: 
35:         $form_name = $form->getName();
36:         $target = $this->_params['target'];
37:         $enabled = $this->_params['enabled'];
38:         if (!is_string($enabled)) {
39:             $enabled = ($enabled) ? 'true' : 'false';
40:         }
41:         $vals = $this->_params['values'];
42:         $vals = (is_array($vals)) ? $vals : array($vals);
43:         $args = "'$varname', $enabled, '" . implode("','", $vals) . "'";
44: 
45:         return "if (addEvent(document.getElementById('$form_name').$target, 'onchange', \"checkEnabled(this, $args);\")) { "
46:             . "  checkEnabled(document.getElementById('$form_name').$varname, $args); };";
47:     }
48: 
49: }
50: