Chris\Bundle\FrontRenderBundle\Subscriber\RenderSubscriber

Complexity

Total Complexity

5

Size/Duplication

Total Lines	74
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Importance

Changes	1
Bugs	0	Features	1

5 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	getSubscribedEvents()	0	7	1
A	updateTagTwig()	0	7	1
A	onKernelException()	0	6	1
A	getFrontLexer()	0	10	1

<?php

namespace Chris\Bundle\FrontRenderBundle\Subscriber;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Twig_Environment;
use Twig_Lexer;

class RenderSubscriber implements EventSubscriberInterface
{
    /**
     * @var Twig_Environment
     */
    protected $twig;

    /**
     * @var Twig_Lexer
     */
    protected $defaultLexer;

    /**
     * RenderSubscriber constructor.
     *
     * @param Twig_Environment $twig
     */
    public function __construct(Twig_Environment $twig)
    {
        $this->twig = $twig;
    }

    /**
     * {@inheritdoc}
     */
    public static function getSubscribedEvents()
    {
        return [
            ['kernel.request' => 'updateTagTwig'],
            ['kernel.exception' => 'onKernelException'],
        ];
    }

    /**
     * Set the custom twig lexer to display custom tags on the front
     *
     * @param GetResponseEvent $event
     */
    public function updateTagTwig(GetResponseEvent $event)

The parameter $event is not used and could be removed.

    {
        $this->defaultLexer = $this->twig->getLexer();

        $lexer = $this->getFrontLexer();
        $this->twig->setLexer($lexer);
    }

    /**
     * Set the default twig lexer to display default tags on exceptions
     *
     * @param GetResponseForExceptionEvent $event
     */
    public function onKernelException(GetResponseForExceptionEvent $event)
    {
        $this->twig->setLexer($this->defaultLexer);

        $event->stopPropagation();
    }

    /**
     * Retrieve the custom twig lexer for the front
     *
     * @return Twig_Lexer
     */
    public function getFrontLexer()
    {
        $lexer = new Twig_Lexer($this->twig, [
            'tag_comment'  => ['{*', '*}'],
            'tag_block'    => ['{@', '@}'],
            'tag_variable' => ['{$', '$}'],
        ]);

        return $lexer;
    }
}