<?phpnamespace Liip\ThemeBundle\Twig\Loader;use Symfony\Component\Config\FileLocatorInterface;use Symfony\Component\Templating\TemplateNameParserInterface;use Symfony\Component\Templating\TemplateReferenceInterface;use Liip\ThemeBundle\ActiveTheme;use Twig\Error\LoaderError as TwigLoaderError;use Twig\Loader\FilesystemLoader as TwigFilesystemLoader;class FilesystemLoader extends TwigFilesystemLoader{ protected $locator; protected $parser; /** * @var ActiveTheme|null */ protected $activeTheme; /** * Constructor. * * @see TwigBundle own FilesystemLoader * * @param FileLocatorInterface $locator A FileLocatorInterface instance * @param TemplateNameParserInterface $parser A TemplateNameParserInterface instance * @param string|null $rootPath The root path common to all relative paths (null for getcwd()) */ public function __construct(FileLocatorInterface $locator, TemplateNameParserInterface $parser, $rootPath = null) { parent::__construct(array(), $rootPath); $this->locator = $locator; $this->parser = $parser; } /** * Define the active theme * * @param ActiveTheme $activeTheme */ public function setActiveTheme(ActiveTheme $activeTheme = null) { $this->activeTheme = $activeTheme; } /** * Returns the path to the template file. * * The file locator is used to locate the template when the naming convention * is the symfony one (i.e. the name can be parsed). * Otherwise the template is located using the locator from the twig library. * * @param string|TemplateReferenceInterface $template The template * @param bool $throw When true, a \Twig\Error\LoaderError exception will be thrown if a template could not be found * * @return string The path to the template file * * @throws \Twig\Error\LoaderError if the template could not be found */ protected function findTemplate($template, $throw = true) { $logicalName = (string) $template; if ($this->activeTheme) { $logicalName .= '|'.$this->activeTheme->getName(); } if (isset($this->cache[$logicalName])) { return $this->cache[$logicalName]; } $file = null; $previous = null; try { $templateReference = $this->parser->parse($template); $file = $this->locator->locate($templateReference); } catch (\Exception $e) { $previous = $e; // for BC try { $file = parent::findTemplate((string) $template); } catch (TwigLoaderError $e) { $previous = $e; } } if (false === $file || null === $file) { if ($throw) { throw new TwigLoaderError(sprintf('Unable to find template "%s".', $logicalName), -1, null, $previous); } return false; } return $this->cache[$logicalName] = $file; }}