includes/htmlform/fields/HTMLFloatField.php

   1 <?php
   2
   3 /**
   4  * A field that will contain a numeric value
   5  */
   6 class HTMLFloatField extends HTMLTextField {
   7         function getSize() {
   8                 return isset( $this->mParams['size'] ) ? $this->mParams['size'] : 20;
   9         }
  10
  11         function validate( $value, $alldata ) {
  12                 $p = parent::validate( $value, $alldata );
  13
  14                 if ( $p !== true ) {
  15                         return $p;
  16                 }
  17
  18                 $value = trim( $value );
  19
  20                 # http://www.w3.org/TR/html5/infrastructure.html#floating-point-numbers
  21                 # with the addition that a leading '+' sign is ok.
  22                 if ( !preg_match( '/^((\+|\-)?\d+(\.\d+)?(E(\+|\-)?\d+)?)?$/i', $value ) ) {
  23                         return $this->msg( 'htmlform-float-invalid' )->parseAsBlock();
  24                 }
  25
  26                 # The "int" part of these message names is rather confusing.
  27                 # They make equal sense for all numbers.
  28                 if ( isset( $this->mParams['min'] ) ) {
  29                         $min = $this->mParams['min'];
  30
  31                         if ( $min > $value ) {
  32                                 return $this->msg( 'htmlform-int-toolow', $min )->parseAsBlock();
  33                         }
  34                 }
  35
  36                 if ( isset( $this->mParams['max'] ) ) {
  37                         $max = $this->mParams['max'];
  38
  39                         if ( $max < $value ) {
  40                                 return $this->msg( 'htmlform-int-toohigh', $max )->parseAsBlock();
  41                         }
  42                 }
  43
  44                 return true;
  45         }
  46 }