laravel-package-forms/src/Attributes/TargetAttribute.php

<?php

namespace Artmark\Forms\Attributes;

/**
 * Description of TargetAttribute
 *
 * @author Andrey Pokidov <pokidov@e-traffic.ru>
 */
trait TargetAttribute
{
    /**
     *
     * @var string
     */
    private $target = '';
    
    /**
     * HTML target attribute of the tag
     * @return string
     */
    public function target()
    {
        return $this->target;
    }
    
    /**
     * 
     * @return boolean
     */
    public function hasTarget()
    {
        return $this->target !== '';
    }
    
    /**
     * 
     * @param string $newTarget
     * @return $this
     */
    public function setTarget($newTarget)
    {
        self::checkTarget($newTarget);
        
        $this->target = trim($newTarget);
        
        return $this;
    }
    
    /**
     * 
     * @return $this
     */
    public function removeTarget()
    {
        $this->target = '';
        
        return $this;
    }
    
    protected function appendTargetAttribute(array & $attributes)
    {
        if ($this->hasTarget())
        {
            $attributes['target'] = $this->target;
        }
    }
    
    public static function checkTarget($target)
    {
        if (!self::isCorrectTarget($target)) {
            throw new AttributeException('Incorrect target value: `' . strval($target) . '`');
        }
    }
    
    public static function isCorrectTarget($target)
    {
        return is_string($target);
    }
}