1: <?php
 2: 
 3: /**
 4:  * This file is part of the Nette Framework (https://nette.org)
 5:  *
 6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
 7:  *
 8:  * For the full copyright and license information, please view
 9:  * the file license.txt that was distributed with this source code.
10:  * @package Nette\Forms
11:  */
12: 
13: 
14: 
15: /**
16:  * Hidden form control used to store a non-displayed value.
17:  *
18:  * @author     David Grudl
19:  * @package Nette\Forms
20:  */
21: class NHiddenField extends NFormControl
22: {
23:     /** @var string */
24:     private $forcedValue;
25: 
26: 
27: 
28:     public function __construct($forcedValue = NULL)
29:     {
30:         parent::__construct();
31:         $this->control->type = 'hidden';
32:         $this->value = (string) $forcedValue;
33:         $this->forcedValue = $forcedValue;
34:     }
35: 
36: 
37: 
38:     /**
39:      * Bypasses label generation.
40:      * @return void
41:      */
42:     public function getLabel($caption = NULL)
43:     {
44:         return NULL;
45:     }
46: 
47: 
48: 
49:     /**
50:      * Sets control's value.
51:      * @param  string
52:      * @return NHiddenField  provides a fluent interface
53:      */
54:     public function setValue($value)
55:     {
56:         $this->value = is_scalar($value) ? (string) $value : '';
57:         return $this;
58:     }
59: 
60: 
61: 
62:     /**
63:      * Generates control's HTML element.
64:      * @return NHtml
65:      */
66:     public function getControl()
67:     {
68:         return parent::getControl()->value($this->forcedValue === NULL ? $this->value : $this->forcedValue);
69:     }
70: 
71: }
72: