FileUploadExtension.php

<?php declare(strict_types=1);
/*
 * Copyright (C) 2015-2017 IRSTEA
 * All rights reserved.
 */

namespace Irstea\FileUploadBundle\Twig;

use InvalidArgumentException;
use Irstea\FileUploadBundle\Entity\UploadedFile;
use Irstea\FileUploadBundle\Model\UploadedFileInterface;
use Irstea\FileUploadBundle\Service\FileUrlGeneratorInterface;
use Irstea\FileUploadBundle\Utils\MimeTypeIcon;
use NumberFormatter;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Translation\TranslatorInterface;
use Twig_Environment;
use Twig_Extension;
use Twig_SimpleFilter;
use Twig_SimpleFunction;

/** Extension Twig pour les fichiers uploadés.
 */
class FileUploadExtension extends Twig_Extension
{
    /**
     * @var TranslatorInterface
     */
    private $translator;

    /**
     * @var FileUrlGeneratorInterface
     */
    private $urlGenerator;

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

    /**
     * {@inheritdoc}
     */
    public function getFunctions()
    {
        return [
            new Twig_SimpleFunction(
                'irstea_uploaded_file',
                [$this, 'formatUploadedFile'],
                [
                    'needs_environment' => true,
                    'is_safe'           => ['html'],
                ]
            ),
            new Twig_SimpleFunction(
                'irstea_file_url',
                [$this, 'generateFileUrl'],
                [
                    'is_safe' => ['html', 'html_attr'],
                ]
            ),
            new Twig_SimpleFunction(
                'irstea_file_icon',
                [$this, 'formatFileIcon'],
                ['is_safe' => ['html']]