146 lines
4.8 KiB
PHP
146 lines
4.8 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Bridge\Twig\Extension;
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use Symfony\Bridge\Twig\NodeVisitor\TranslationDefaultDomainNodeVisitor;
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use Symfony\Bridge\Twig\NodeVisitor\TranslationNodeVisitor;
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use Symfony\Bridge\Twig\TokenParser\TransDefaultDomainTokenParser;
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use Symfony\Bridge\Twig\TokenParser\TransTokenParser;
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use Symfony\Component\Translation\TranslatableMessage;
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use Symfony\Contracts\Translation\TranslatableInterface;
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use Symfony\Contracts\Translation\TranslatorInterface;
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use Symfony\Contracts\Translation\TranslatorTrait;
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use Twig\Extension\AbstractExtension;
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use Twig\TwigFilter;
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use Twig\TwigFunction;
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// Help opcache.preload discover always-needed symbols
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class_exists(TranslatorInterface::class);
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class_exists(TranslatorTrait::class);
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/**
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* Provides integration of the Translation component with Twig.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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final class TranslationExtension extends AbstractExtension
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{
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private $translator;
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private $translationNodeVisitor;
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public function __construct(TranslatorInterface $translator = null, TranslationNodeVisitor $translationNodeVisitor = null)
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{
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$this->translator = $translator;
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$this->translationNodeVisitor = $translationNodeVisitor;
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}
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public function getTranslator(): TranslatorInterface
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{
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if (null === $this->translator) {
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if (!interface_exists(TranslatorInterface::class)) {
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throw new \LogicException(sprintf('You cannot use the "%s" if the Translation Contracts are not available. Try running "composer require symfony/translation".', __CLASS__));
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}
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$this->translator = new class() implements TranslatorInterface {
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use TranslatorTrait;
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};
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}
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return $this->translator;
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}
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/**
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* {@inheritdoc}
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*/
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public function getFunctions(): array
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{
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return [
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new TwigFunction('t', [$this, 'createTranslatable']),
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];
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}
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/**
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* {@inheritdoc}
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*/
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public function getFilters(): array
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{
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return [
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new TwigFilter('trans', [$this, 'trans']),
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];
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}
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/**
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* {@inheritdoc}
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*/
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public function getTokenParsers(): array
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{
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return [
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// {% trans %}Symfony is great!{% endtrans %}
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new TransTokenParser(),
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// {% trans_default_domain "foobar" %}
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new TransDefaultDomainTokenParser(),
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];
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}
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/**
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* {@inheritdoc}
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*/
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public function getNodeVisitors(): array
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{
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return [$this->getTranslationNodeVisitor(), new TranslationDefaultDomainNodeVisitor()];
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}
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public function getTranslationNodeVisitor(): TranslationNodeVisitor
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{
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return $this->translationNodeVisitor ?: $this->translationNodeVisitor = new TranslationNodeVisitor();
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}
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/**
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* @param string|\Stringable|TranslatableInterface|null $message
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* @param array|string $arguments Can be the locale as a string when $message is a TranslatableInterface
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*/
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public function trans($message, $arguments = [], string $domain = null, string $locale = null, int $count = null): string
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{
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if ($message instanceof TranslatableInterface) {
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if ([] !== $arguments && !\is_string($arguments)) {
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throw new \TypeError(sprintf('Argument 2 passed to "%s()" must be a locale passed as a string when the message is a "%s", "%s" given.', __METHOD__, TranslatableInterface::class, get_debug_type($arguments)));
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}
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return $message->trans($this->getTranslator(), $locale ?? (\is_string($arguments) ? $arguments : null));
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}
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if (!\is_array($arguments)) {
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throw new \TypeError(sprintf('Unless the message is a "%s", argument 2 passed to "%s()" must be an array of parameters, "%s" given.', TranslatableInterface::class, __METHOD__, get_debug_type($arguments)));
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}
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if ('' === $message = (string) $message) {
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return '';
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}
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if (null !== $count) {
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$arguments['%count%'] = $count;
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}
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return $this->getTranslator()->trans($message, $arguments, $domain, $locale);
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}
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public function createTranslatable(string $message, array $parameters = [], string $domain = null): TranslatableMessage
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{
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if (!class_exists(TranslatableMessage::class)) {
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throw new \LogicException(sprintf('You cannot use the "%s" as the Translation Component is not installed. Try running "composer require symfony/translation".', __CLASS__));
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}
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return new TranslatableMessage($message, $parameters, $domain);
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}
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}
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