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:  */
  7: 
  8: namespace Nette\Forms\Controls;
  9: 
 10: use Nette;
 11: 
 12: 
 13: /**
 14:  * Select box control that allows multiple item selection.
 15:  *
 16:  * @author     David Grudl
 17:  */
 18: class MultiSelectBox extends SelectBox
 19: {
 20: 
 21: 
 22:     /**
 23:      * Returns selected keys.
 24:      * @return array
 25:      */
 26:     public function getValue()
 27:     {
 28:         return array_intersect($this->getRawValue(), array_keys($this->allowed));
 29:     }
 30: 
 31: 
 32:     /**
 33:      * Returns selected keys (not checked).
 34:      * @return array
 35:      */
 36:     public function getRawValue()
 37:     {
 38:         if (is_scalar($this->value)) {
 39:             return array($this->value);
 40: 
 41:         } else {
 42:             $res = array();
 43:             foreach ((array) $this->value as $val) {
 44:                 if (is_scalar($val)) {
 45:                     $res[] = $val;
 46:                 }
 47:             }
 48:             return $res;
 49:         }
 50:     }
 51: 
 52: 
 53:     /**
 54:      * Returns selected values.
 55:      * @return array
 56:      */
 57:     public function getSelectedItem()
 58:     {
 59:         return $this->areKeysUsed()
 60:             ? array_intersect_key($this->allowed, array_flip($this->getValue()))
 61:             : $this->getValue();
 62:     }
 63: 
 64: 
 65:     /**
 66:      * Returns HTML name of control.
 67:      * @return string
 68:      */
 69:     public function getHtmlName()
 70:     {
 71:         return parent::getHtmlName() . '[]';
 72:     }
 73: 
 74: 
 75:     /**
 76:      * Generates control's HTML element.
 77:      * @return Nette\Utils\Html
 78:      */
 79:     public function getControl()
 80:     {
 81:         return parent::getControl()->multiple(TRUE);
 82:     }
 83: 
 84: 
 85:     /**
 86:      * Count/length validator.
 87:      * @param  MultiSelectBox
 88:      * @param  array  min and max length pair
 89:      * @return bool
 90:      */
 91:     public static function validateLength(MultiSelectBox $control, $range)
 92:     {
 93:         if (!is_array($range)) {
 94:             $range = array($range, $range);
 95:         }
 96:         $count = count($control->getSelectedItem());
 97:         return ($range[0] === NULL || $count >= $range[0]) && ($range[1] === NULL || $count <= $range[1]);
 98:     }
 99: 
100: }
101: