ScssphpFilter.php

<?php

/*
 * This file is part of the Assetic package, an OpenSky project.
 *
 * (c) 2010-2013 OpenSky Project Inc
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Assetic\Filter;

use Assetic\Asset\AssetInterface;
use Assetic\Factory\AssetFactory;

/**
 * Loads SCSS files using the PHP implementation of scss, scssphp.
 *
 * Scss files are mostly compatible, but there are slight differences.
 *
 * @link http://leafo.net/scssphp/
 *
 * @author Bart van den Burg <bart@samson-it.nl>
 */
class ScssphpFilter implements DependencyExtractorInterface {
  private $compass = false;
  private $importPaths = array();
  public function enableCompass($enable = true) {
    $this->compass = (bool) $enable;
  }
  public function isCompassEnabled() {
    return $this->compass;
  }
  public function filterLoad(AssetInterface $asset) {
    $root = $asset
      ->getSourceRoot();
    $path = $asset
      ->getSourcePath();
    $lc = new \scssc();
    if ($this->compass) {
      new \scss_compass($lc);
    }
    if ($root && $path) {
      $lc
        ->addImportPath(dirname($root . '/' . $path));
    }
    foreach ($this->importPaths as $path) {
      $lc
        ->addImportPath($path);
    }
    $asset
      ->setContent($lc
      ->compile($asset
      ->getContent()));
  }
  public function setImportPaths(array $paths) {
    $this->importPaths = $paths;
  }
  public function addImportPath($path) {
    $this->importPaths[] = $path;
  }
  public function filterDump(AssetInterface $asset) {
  }
  public function getChildren(AssetFactory $factory, $content, $loadPath = null) {

    // todo
    return array();
  }

}