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\Bundle\TwigBundle\Extension;

    13 

    14 use Symfony\Component\DependencyInjection\ContainerInterface;

    15 

    16 /**

    17  * @author Fabien Potencier <fabien@symfony.com>

    18  */

    19 class AssetsExtension extends \Twig_Extension

    20 {

    21     private $container;

    22 

    23     public function __construct(ContainerInterface $container)

    24     {

    25         $this->container = $container;

    26     }

    27 

    28     /**

    29      * Returns a list of functions to add to the existing list.

    30      *

    31      * @return array An array of functions

    32      */

    33     public function getFunctions()

    34     {

    35         return array(

    36             'asset' => new \Twig_Function_Method($this, 'getAssetUrl'),

    37             'assets_version' => new \Twig_Function_Method($this, 'getAssetsVersion'),

    38         );

    39     }

    40 

    41     /**

    42      * Returns the public path of an asset

    43      *

    44      * Absolute paths (i.e. http://...) are returned unmodified.

    45      *

    46      * @param string $path        A public path

    47      * @param string $packageName The name of the asset package to use

    48      *

    49      * @return string A public path which takes into account the base path and URL path

    50      */

    51     public function getAssetUrl($path, $packageName = null)

    52     {

    53         return $this->container->get('templating.helper.assets')->getUrl($path, $packageName);

    54     }

    55 

    56     /**

    57      * Returns the version of the assets in a package

    58      *

    59      * @param string $packageName

    60      * @return int

    61      */

    62     public function getAssetsVersion($packageName = null)

    63     {

    64         return $this->container->get('templating.helper.assets')->getVersion($packageName);

    65     }

    66 

    67     /**

    68      * Returns the name of the extension.

    69      *

    70      * @return string The extension name

    71      */

    72     public function getName()

    73     {

    74         return 'assets';

    75     }

    76 }