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:  */
11: 
12: namespace Nette\Forms;
13: 
14: use Nette;
15: 
16: 
17: 
18: /**
19:  * Hidden form control used to store a non-displayed value.
20:  *
21:  * @author     David Grudl
22:  */
23: class HiddenField extends FormControl
24: {
25:     /** @var string */
26:     private $forcedValue;
27: 
28: 
29: 
30:     public function __construct($forcedValue = NULL)
31:     {
32:         parent::__construct();
33:         $this->control->type = 'hidden';
34:         $this->value = (string) $forcedValue;
35:         $this->forcedValue = $forcedValue;
36:     }
37: 
38: 
39: 
40:     /**
41:      * Bypasses label generation.
42:      * @return void
43:      */
44:     public function getLabel($caption = NULL)
45:     {
46:         return NULL;
47:     }
48: 
49: 
50: 
51:     /**
52:      * Sets control's value.
53:      * @param  string
54:      * @return HiddenField  provides a fluent interface
55:      */
56:     public function setValue($value)
57:     {
58:         $this->value = is_scalar($value) ? (string) $value : '';
59:         return $this;
60:     }
61: 
62: 
63: 
64:     /**
65:      * Generates control's HTML element.
66:      * @return Nette\Web\Html
67:      */
68:     public function getControl()
69:     {
70:         return parent::getControl()->value($this->forcedValue === NULL ? $this->value : $this->forcedValue);
71:     }
72: 
73: }
74: