vendor/symfony/twig-bridge/Symfony/Bridge/Twig/Extension/TranslationExtension.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Bridge\Twig\Extension;
  13
  14 use Symfony\Bridge\Twig\TokenParser\TransTokenParser;
  15 use Symfony\Bridge\Twig\TokenParser\TransChoiceTokenParser;
  16 use Symfony\Bridge\Twig\TokenParser\TransDefaultDomainTokenParser;
  17 use Symfony\Component\Translation\TranslatorInterface;
  18 use Symfony\Bridge\Twig\NodeVisitor\TranslationNodeVisitor;
  19 use Symfony\Bridge\Twig\NodeVisitor\TranslationDefaultDomainNodeVisitor;
  20
  21 /**
  22  * Provides integration of the Translation component with Twig.
  23  *
  24  * @author Fabien Potencier <fabien@symfony.com>
  25  */
  26 class TranslationExtension extends \Twig_Extension
  27 {
  28     private $translator;
  29     private $translationNodeVisitor;
  30
  31     public function __construct(TranslatorInterface $translator, \Twig_NodeVisitorInterface $translationNodeVisitor = null)
  32     {
  33         if (!$translationNodeVisitor) {
  34             $translationNodeVisitor = new TranslationNodeVisitor();
  35         }
  36
  37         $this->translator = $translator;
  38         $this->translationNodeVisitor = $translationNodeVisitor;
  39     }
  40
  41     public function getTranslator()
  42     {
  43         return $this->translator;
  44     }
  45
  46     /**
  47      * {@inheritdoc}
  48      */
  49     public function getFilters()
  50     {
  51         return array(
  52             'trans' => new \Twig_Filter_Method($this, 'trans'),
  53             'transchoice' => new \Twig_Filter_Method($this, 'transchoice'),
  54         );
  55     }
  56
  57     /**
  58      * Returns the token parser instance to add to the existing list.
  59      *
  60      * @return array An array of Twig_TokenParser instances
  61      */
  62     public function getTokenParsers()
  63     {
  64         return array(
  65             // {% trans %}Symfony is great!{% endtrans %}
  66             new TransTokenParser(),
  67
  68             // {% transchoice count %}
  69             //     {0} There is no apples|{1} There is one apple|]1,Inf] There is {{ count }} apples
  70             // {% endtranschoice %}
  71             new TransChoiceTokenParser(),
  72
  73             // {% trans_default_domain "foobar" %}
  74             new TransDefaultDomainTokenParser(),
  75         );
  76     }
  77
  78     /**
  79      * {@inheritdoc}
  80      */
  81     public function getNodeVisitors()
  82     {
  83         return array($this->translationNodeVisitor, new TranslationDefaultDomainNodeVisitor());
  84     }
  85
  86     public function getTranslationNodeVisitor()
  87     {
  88         return $this->translationNodeVisitor;
  89     }
  90
  91     public function trans($message, array $arguments = array(), $domain = null, $locale = null)
  92     {
  93         if (null === $domain) {
  94             $domain = 'messages';
  95         }
  96
  97         return $this->translator->trans($message, $arguments, $domain, $locale);
  98     }
  99
 100     public function transchoice($message, $count, array $arguments = array(), $domain = null, $locale = null)
 101     {
 102         if (null === $domain) {
 103             $domain = 'messages';
 104         }
 105
 106         return $this->translator->transChoice($message, $count, array_merge(array('%count%' => $count), $arguments), $domain, $locale);
 107     }
 108
 109     /**
 110      * Returns the name of the extension.
 111      *
 112      * @return string The extension name
 113      */
 114     public function getName()
 115     {
 116         return 'translator';
 117     }
 118 }