FileUploadExtension.php

<?php

/*
 * Copyright (C) 2015 IRSTEA
 * All rights reserved.
 */

namespace Irstea\FileUploadBundle\Twig;

use Irstea\FileUploadBundle\Model\UploadedFileInterface;
use Irstea\FileUploadBundle\Utils\MimeTypeIcon;
use \NumberFormatter;
use Symfony\Component\Translation\TranslatorInterface;
use Twig_Environment;
use Twig_Extension;
use Twig_SimpleFilter;
use Twig_SimpleFunction;

/**
 * Description of FileUploadExtension
 *
 * @author Guillaume Perréal <guillaume.perreal@irstea.fr>
 */
class FileUploadExtension extends Twig_Extension
{
    /**
     *
     * @var TranslatorInterface
     */
    private $translator;

    /**
     *
     * @param TranslatorInterface $translator
     */
    public function __construct(TranslatorInterface $translator)
    {
        $this->translator = $translator;
    }

    public function getFunctions()
    {
        return [
            new Twig_SimpleFunction(
                'irstea_uploaded_file',
                [$this, 'formatUploadedFile'],
                [
                    'needs_environment' => true,
                    'is_safe' => ['html']
                ]
            ),
            new Twig_SimpleFunction(
                'irstea_file_icon',
                [$this, 'formatFileIcon'],
                ['is_safe' => ['html']]
            ),
        ];
    }

    public function getFilters()
    {
        return [
            new Twig_SimpleFilter(
                'irstea_file_size',
                [$this, 'formatFileSize'],
                ['needs_context' => true]
            ),
        ];
    }