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