<?php


namespace Matosoft\Utils\Forms;

use Nette\Application\Responses\TextResponse;
use Nette\Application\UI\ISignalReceiver;
use Nette\Application\UI\Presenter;
use Nette\Forms\Controls\TextArea;
use Nette\Forms\Form;



class TexylaInput extends TextArea implements ISignalReceiver
{

    /**
     * @var \Texy
     */
    private $texy;

    /**
     * @var Presenter
     */
    private $presenter;



    public function __construct($label = NULL, $cols = NULL, $rows = NULL)
    {
        parent::__construct($label, $cols, $rows);
        $this->monitor('Nette\Application\UI\Presenter');
    }


    protected function getPresenter()
    {
        return $this->lookup('Nette\Application\UI\Presenter');
    }


    protected function getUniqueId()
    {
        return $this->lookupPath('Nette\Application\UI\Presenter');
    }



    protected function attached($parent)
    {
        if ($parent instanceof Presenter) {
            $name = $this->getUniqueId();
            $this->setAttribute('data-previewLink', $parent->link('this', array('do' => $name . '-preview')));
        }

        parent::attached($object);
    }



    /**
     * @param  string
     * @return void
     */
    public function signalReceived($signal)
    {
        if ($signal === 'preview') {
            $this->getPresenter()->sendResponse(new TextResponse($this->getTexy()->process($this->value)));
        }

        throw new \Nette\Application\UI\BadSignalException;
    }



    /**
     * @return \Texy
     */
    private function getTexy()
    {
        if ($this->texy === NULL) {
            $this->texy = new \Texy();
        }

        return $this->texy;
    }
}