1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (https://nette.org)
  5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
  6:  */
  7: 
  8: namespace Nette\Forms\Controls;
  9: 
 10: use Nette;
 11: 
 12: 
 13: /**
 14:  * Choice control that allows multiple items selection.
 15:  *
 16:  * @author     David Grudl
 17:  *
 18:  * @property   array $items
 19:  * @property-read array $selectedItems
 20:  * @property-read array $rawValue
 21:  */
 22: abstract class MultiChoiceControl extends BaseControl
 23: {
 24:     /** @var array */
 25:     private $items = array();
 26: 
 27: 
 28:     public function __construct($label = NULL, array $items = NULL)
 29:     {
 30:         parent::__construct($label);
 31:         if ($items !== NULL) {
 32:             $this->setItems($items);
 33:         }
 34:     }
 35: 
 36: 
 37:     /**
 38:      * Loads HTTP data.
 39:      * @return void
 40:      */
 41:     public function loadHttpData()
 42:     {
 43:         $this->value = array_keys(array_flip($this->getHttpData(Nette\Forms\Form::DATA_TEXT)));
 44:         if (is_array($this->disabled)) {
 45:             $this->value = array_diff($this->value, array_keys($this->disabled));
 46:         }
 47:     }
 48: 
 49: 
 50:     /**
 51:      * Sets selected items (by keys).
 52:      * @param  array
 53:      * @return self
 54:      */
 55:     public function setValue($values)
 56:     {
 57:         if (is_scalar($values) || $values === NULL) {
 58:             $values = (array) $values;
 59:         } elseif (!is_array($values)) {
 60:             throw new Nette\InvalidArgumentException(sprintf("Value must be array or NULL, %s given in field '%s'.", gettype($values), $this->name));
 61:         }
 62:         $flip = array();
 63:         foreach ($values as $value) {
 64:             if (!is_scalar($value) && !method_exists($value, '__toString')) {
 65:                 throw new Nette\InvalidArgumentException(sprintf("Values must be scalar, %s given in field '%s'.", gettype($value), $this->name));
 66:             }
 67:             $flip[(string) $value] = TRUE;
 68:         }
 69:         $values = array_keys($flip);
 70:         if ($diff = array_diff($values, array_keys($this->items))) {
 71:             $set = Nette\Utils\Strings::truncate(implode(', ', array_map(function ($s) { return var_export($s, TRUE); }, array_keys($this->items))), 70, '...');
 72:             $vals = (count($diff) > 1 ? 's' : '') . " '" . implode("', '", $diff) . "'";
 73:             throw new Nette\InvalidArgumentException("Value$vals are out of allowed set [$set] in field '{$this->name}'.");
 74:         }
 75:         $this->value = $values;
 76:         return $this;
 77:     }
 78: 
 79: 
 80:     /**
 81:      * Returns selected keys.
 82:      * @return array
 83:      */
 84:     public function getValue()
 85:     {
 86:         return array_values(array_intersect($this->value, array_keys($this->items)));
 87:     }
 88: 
 89: 
 90:     /**
 91:      * Returns selected keys (not checked).
 92:      * @return array
 93:      */
 94:     public function getRawValue()
 95:     {
 96:         return $this->value;
 97:     }
 98: 
 99: 
100:     /**
101:      * Is any item selected?
102:      * @return bool
103:      */
104:     public function isFilled()
105:     {
106:         return $this->getValue() !== array();
107:     }
108: 
109: 
110:     /**
111:      * Sets items from which to choose.
112:      * @param  array
113:      * @param  bool
114:      * @return self
115:      */
116:     public function setItems(array $items, $useKeys = TRUE)
117:     {
118:         $this->items = $useKeys ? $items : array_combine($items, $items);
119:         return $this;
120:     }
121: 
122: 
123:     /**
124:      * Returns items from which to choose.
125:      * @return array
126:      */
127:     public function getItems()
128:     {
129:         return $this->items;
130:     }
131: 
132: 
133:     /**
134:      * Returns selected values.
135:      * @return array
136:      */
137:     public function getSelectedItems()
138:     {
139:         return array_intersect_key($this->items, array_flip($this->value));
140:     }
141: 
142: 
143:     /**
144:      * Disables or enables control or items.
145:      * @param  bool|array
146:      * @return self
147:      */
148:     public function setDisabled($value = TRUE)
149:     {
150:         if (!is_array($value)) {
151:             return parent::setDisabled($value);
152:         }
153: 
154:         parent::setDisabled(FALSE);
155:         $this->disabled = array_fill_keys($value, TRUE);
156:         $this->value = array_diff($this->value, $value);
157:         return $this;
158:     }
159: 
160: 
161:     /**
162:      * Returns HTML name of control.
163:      * @return string
164:      */
165:     public function getHtmlName()
166:     {
167:         return parent::getHtmlName() . '[]';
168:     }
169: 
170: }
171: