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msd2/phpBB3/vendor/symfony/twig-bridge/Extension/AssetExtension.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\Twig\Extension;
+
+use Symfony\Component\Asset\Packages;
+use Symfony\Component\Asset\VersionStrategy\StaticVersionStrategy;
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+/**
+ * Twig extension for the Symfony Asset component.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class AssetExtension extends AbstractExtension
+{
+    private $packages;
+    private $foundationExtension;
+
+    /**
+     * Passing an HttpFoundationExtension instance as a second argument must not be relied on
+     * as it's only there to maintain BC with older Symfony version. It will be removed in 3.0.
+     */
+    public function __construct(Packages $packages, HttpFoundationExtension $foundationExtension = null)
+    {
+        $this->packages = $packages;
+        $this->foundationExtension = $foundationExtension;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFunctions()
+    {
+        return array(
+            new TwigFunction('asset', array($this, 'getAssetUrl')),
+            new TwigFunction('asset_version', array($this, 'getAssetVersion')),
+            new TwigFunction('assets_version', array($this, 'getAssetsVersion'), array('deprecated' => true, 'alternative' => 'asset_version')),
+        );
+    }
+
+    /**
+     * Returns the public url/path of an asset.
+     *
+     * If the package used to generate the path is an instance of
+     * UrlPackage, you will always get a URL and not a path.
+     *
+     * @param string $path        A public path
+     * @param string $packageName The name of the asset package to use
+     *
+     * @return string The public path of the asset
+     */
+    public function getAssetUrl($path, $packageName = null, $absolute = false, $version = null)
+    {
+        // BC layer to be removed in 3.0
+        if (2 < $count = \func_num_args()) {
+            @trigger_error('Generating absolute URLs with the Twig asset() function was deprecated in 2.7 and will be removed in 3.0. Please use absolute_url() instead.', E_USER_DEPRECATED);
+            if (4 === $count) {
+                @trigger_error('Forcing a version with the Twig asset() function was deprecated in 2.7 and will be removed in 3.0.', E_USER_DEPRECATED);
+            }
+
+            $args = \func_get_args();
+
+            return $this->getLegacyAssetUrl($path, $packageName, $args[2], isset($args[3]) ? $args[3] : null);
+        }
+
+        return $this->packages->getUrl($path, $packageName);
+    }
+
+    /**
+     * Returns the version of an asset.
+     *
+     * @param string $path        A public path
+     * @param string $packageName The name of the asset package to use
+     *
+     * @return string The asset version
+     */
+    public function getAssetVersion($path, $packageName = null)
+    {
+        return $this->packages->getVersion($path, $packageName);
+    }
+
+    public function getAssetsVersion($packageName = null)
+    {
+        @trigger_error('The Twig assets_version() function was deprecated in 2.7 and will be removed in 3.0. Please use asset_version() instead.', E_USER_DEPRECATED);
+
+        return $this->packages->getVersion('/', $packageName);
+    }
+
+    private function getLegacyAssetUrl($path, $packageName = null, $absolute = false, $version = null)
+    {
+        if ($version) {
+            $package = $this->packages->getPackage($packageName);
+
+            $v = new \ReflectionProperty('Symfony\Component\Asset\Package', 'versionStrategy');
+            $v->setAccessible(true);
+
+            $currentVersionStrategy = $v->getValue($package);
+
+            if (property_exists($currentVersionStrategy, 'format')) {
+                $f = new \ReflectionProperty($currentVersionStrategy, 'format');
+                $f->setAccessible(true);
+
+                $format = $f->getValue($currentVersionStrategy);
+
+                $v->setValue($package, new StaticVersionStrategy($version, $format));
+            } else {
+                $v->setValue($package, new StaticVersionStrategy($version));
+            }
+        }
+
+        try {
+            $url = $this->packages->getUrl($path, $packageName);
+        } catch (\Exception $e) {
+            if ($version) {
+                $v->setValue($package, $currentVersionStrategy);
+            }
+
+            throw $e;
+        }
+
+        if ($version) {
+            $v->setValue($package, $currentVersionStrategy);
+        }
+
+        if ($absolute) {
+            return $this->foundationExtension->generateAbsoluteUrl($url);
+        }
+
+        return $url;
+    }
+
+    /**
+     * Returns the name of the extension.
+     *
+     * @return string The extension name
+     */
+    public function getName()
+    {
+        return 'asset';
+    }
+}