Elements/Number.php

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<?php
namespace Depage\HtmlForm\Elements;
 
class Number extends Text
{
    protected $min;
    protected $max;
    protected $step;
 
    protected function setDefaults()
    {
        parent::setDefaults();
 
        $this->defaults['defaultValue'] = 0;
        $this->defaults['min']          = null;
        $this->defaults['max']          = null;
        $this->defaults['step']         = null;
        $this->defaults['errorMessage'] = _('Please enter a valid number');
    }
 
    public function __toString()
    {
        $value              = $this->htmlValue();
        $type               = strtolower($this->type);
        $inputAttributes    = $this->htmlInputAttributes();
        $marker             = $this->htmlMarker();
        $label              = $this->htmlLabel();
        $min                = $this->htmlMin();
        $max                = $this->htmlMax();
        $step               = $this->htmlStep();
        $wrapperAttributes  = $this->htmlWrapperAttributes();
        $errorMessage       = $this->htmlErrorMessage();
        $list               = $this->htmlList();
        $helpMessage        = $this->htmlHelpMessage();
 
        return "<p {$wrapperAttributes}>" .
            "<label>" .
                "<span class=\"depage-label\">{$label}{$marker}</span>" .
                "<input name=\"{$this->name}\" type=\"{$type}\"{$max}{$min}{$step}{$inputAttributes} value=\"{$value}\">" .
                $list .
            "</label>" .
            $errorMessage .
            $helpMessage .
        "</p>\n";
    }
 
    protected function htmlMin()
    {
        return ($this->min === null) ? "" : " min=\"" . $this->htmlEscape($this->min) . "\"";
    }
 
    protected function htmlMax()
    {
        return ($this->max === null) ? "" : " max=\"" . $this->htmlEscape($this->max) . "\"";
    }
 
    protected function htmlStep()
    {
        return ($this->step === null) ? "" : " step=\"" . $this->htmlEscape($this->step) . "\"";
    }
 
    protected function validatorCall()
    {
        $parameters = array(
            'min' => $this->min,
            'max' => $this->max,
        );
 
        return $this->validator->validate($this->value, $parameters);
    }
 
    protected function typeCastValue()
    {
        $ptString = $this->value;
 
        $pString = str_replace(" ", "", $ptString);
 
        // assume if we have more than one mark it's a thousand mark -> remove them
        if (substr_count($pString, ",") > 1) {
            $pString = str_replace(",", "", $pString);
        }
        if (substr_count($pString, ".") > 1) {
            $pString = str_replace(".", "", $pString);
        }
 
        // assume last entry is decimal mark
        $commaset = strrpos($pString, ',');
        $pointset = strrpos($pString, '.');
 
        // remove all remaining marks but the decimal mark
        if ($commaset > $pointset) {
            $pString = str_replace(".", "", $pString);
        } else if ($commaset < $pointset) {
            $pString = str_replace(",", "", $pString);
        }
 
        // normalize to dot
        $pString = str_replace(",", ".", $pString);
 
        if ($pString !== "" && preg_match("/^[-+]?\d*\.?\d*$/", $pString)) {
            $this->value = (float) $pString;
        } else {
            $this->value = null;
        }
    }
 
    public function getStringValue()
    {
        $decimals = 0;
 
        if ($this->step !== null && ($pos = strpos($this->step, ".")) !== false) {
            $decimals = strlen(substr($this->step, $pos + 1));
        }
 
        return number_format($this->getValue(), $decimals, '.', '');
    }
 
    public function isEmpty() {
        return (
            empty($this->value)
            && $this->value !== 0
            && $this->value !== .0
        );
    }
 
}
 
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