<?php

namespace Artmark\Forms\Attributes;

/**
 * Description of MaxLengthAttribute
 *
 * @author Andrey Pokidov <pokidov@e-traffic.ru>
 */
trait MaxLengthAttribute
{
    /**
     *
     * @var int
     */
    private $maxlength = 0;
    
    /**
     * HTML site attribute of the input tag
     * @return int
     */
    public function maxLength()
    {
        return $this->maxlength;
    }
    
    /**
     * 
     * @return boolean
     */
    public function hasMaxLength()
    {
        return $this->maxlength > 0;
    }
    
    /**
     * 
     * @param int $newMaxLength
     * @return $this
     */
    public function setMaxLength($newMaxLength)
    {
        $this->maxlength = intval($newMaxLength);
        
        if ($this->maxlength < 0) {
            $this->maxlength = 0;
        }
        
        return $this;
    }
    
    /**
     * 
     * @return $this
     */
    public function removeMaxLength()
    {
        $this->maxlength = 0;
        
        return $this;
    }
    
    protected function appendMaxLengthAttribute(array & $attributes)
    {
        if ($this->hasMaxLength())
        {
            $attributes['maxlength'] = $this->maxlength;
        }
    }
}