HTMLFloatField.php

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<?php
 
class HTMLFloatField extends HTMLTextField {
    public function getSize() {
        return $this->mParams['size'] ?? 20;
    }
 
    public function validate( $value, $alldata ) {
        $p = parent::validate( $value, $alldata );
 
        if ( $p !== true ) {
            return $p;
        }
 
        $value = trim( $value );
 
        # https://www.w3.org/TR/html5/infrastructure.html#floating-point-numbers
        # with the addition that a leading '+' sign is ok.
        if ( !preg_match( '/^((\+|\-)?\d+(\.\d+)?(E(\+|\-)?\d+)?)?$/i', $value ) ) {
            return $this->msg( 'htmlform-float-invalid' );
        }
 
        # The "int" part of these message names is rather confusing.
        # They make equal sense for all numbers.
        if ( isset( $this->mParams['min'] ) ) {
            $min = $this->mParams['min'];
 
            if ( $min > $value ) {
                return $this->msg( 'htmlform-int-toolow', $min );
            }
        }
 
        if ( isset( $this->mParams['max'] ) ) {
            $max = $this->mParams['max'];
 
            if ( $max < $value ) {
                return $this->msg( 'htmlform-int-toohigh', $max );
            }
        }
 
        return true;
    }
 
    protected function getInputWidget( $params ) {
        return new OOUI\NumberInputWidget( $params );
    }
}