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