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: use Nette\Forms\Form;
 12: use Nette\Utils\Strings;
 13: 
 14: 
 15: /**
 16:  * Implements the basic functionality common to text input controls.
 17:  */
 18: abstract class TextBase extends BaseControl
 19: {
 20:     /** @var string */
 21:     protected $emptyValue = '';
 22: 
 23:     /** @var mixed unfiltered submitted value */
 24:     protected $rawValue = '';
 25: 
 26: 
 27:     /**
 28:      * Sets control's value.
 29:      * @param  string
 30:      * @return static
 31:      * @internal
 32:      */
 33:     public function setValue($value)
 34:     {
 35:         if ($value === NULL) {
 36:             $value = '';
 37:         } elseif (!is_scalar($value) && !method_exists($value, '__toString')) {
 38:             throw new Nette\InvalidArgumentException(sprintf("Value must be scalar or NULL, %s given in field '%s'.", gettype($value), $this->name));
 39:         }
 40:         $this->rawValue = $this->value = $value;
 41:         return $this;
 42:     }
 43: 
 44: 
 45:     /**
 46:      * Returns control's value.
 47:      * @return string
 48:      */
 49:     public function getValue()
 50:     {
 51:         return $this->value === Strings::trim($this->translate($this->emptyValue)) ? '' : $this->value;
 52:     }
 53: 
 54: 
 55:     /**
 56:      * Sets the special value which is treated as empty string.
 57:      * @param  string
 58:      * @return static
 59:      */
 60:     public function setEmptyValue($value)
 61:     {
 62:         $this->emptyValue = (string) $value;
 63:         return $this;
 64:     }
 65: 
 66: 
 67:     /**
 68:      * Returns the special value which is treated as empty string.
 69:      * @return string
 70:      */
 71:     public function getEmptyValue()
 72:     {
 73:         return $this->emptyValue;
 74:     }
 75: 
 76: 
 77:     /**
 78:      * Sets the maximum number of allowed characters.
 79:      * @param  int
 80:      * @return static
 81:      */
 82:     public function setMaxLength($length)
 83:     {
 84:         $this->control->maxlength = $length;
 85:         return $this;
 86:     }
 87: 
 88: 
 89:     /**
 90:      * Appends input string filter callback.
 91:      * @param  callable
 92:      * @return static
 93:      */
 94:     public function addFilter($filter)
 95:     {
 96:         $this->rules->addFilter($filter);
 97:         return $this;
 98:     }
 99: 
100: 
101:     public function getControl()
102:     {
103:         $el = parent::getControl();
104:         if ($this->emptyValue !== '') {
105:             $el->attrs['data-nette-empty-value'] = Strings::trim($this->translate($this->emptyValue));
106:         }
107:         if (isset($el->placeholder)) {
108:             $el->placeholder = $this->translate($el->placeholder);
109:         }
110:         return $el;
111:     }
112: 
113: 
114:     public function addRule($validator, $message = NULL, $arg = NULL)
115:     {
116:         if ($validator === Form::LENGTH || $validator === Form::MAX_LENGTH) {
117:             $tmp = is_array($arg) ? $arg[1] : $arg;
118:             if (is_scalar($tmp)) {
119:                 $this->control->maxlength = isset($this->control->maxlength) ? min($this->control->maxlength, $tmp) : $tmp;
120:             }
121:         }
122:         return parent::addRule($validator, $message, $arg);
123:     }
124: 
125: }
126: