Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core\Path;
Chris@0: 
Chris@0: use Symfony\Component\HttpFoundation\Request;
Chris@0: use Symfony\Component\HttpFoundation\RequestStack;
Chris@0: 
Chris@0: /**
Chris@0:  * Represents the current path for the current request.
Chris@0:  *
Chris@0:  * Note: You should not rely on paths but rather on route names / parameters or
Chris@0:  *   other indicators like context. For some fundamental parts, like routing or
Chris@0:  *   path processing, there is unfortunately no way around dealing with paths.
Chris@0:  */
Chris@0: class CurrentPathStack {
Chris@0: 
Chris@0:   /**
Chris@0:    * Static cache of paths.
Chris@0:    *
Chris@0:    * @var \SplObjectStorage
Chris@0:    */
Chris@0:   protected $paths;
Chris@0: 
Chris@0:   /**
Chris@0:    * The request stack.
Chris@0:    *
Chris@0:    * @var \Symfony\Component\HttpFoundation\RequestStack
Chris@0:    */
Chris@0:   protected $requestStack;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs a new CurrentPathStack instance.
Chris@0:    *
Chris@0:    * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
Chris@0:    *   The request stack.
Chris@0:    */
Chris@0:   public function __construct(RequestStack $request_stack) {
Chris@0:     $this->requestStack = $request_stack;
Chris@0:     $this->paths = new \SplObjectStorage();
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Returns the path of the current request.
Chris@0:    *
Chris@0:    * @param \Symfony\Component\HttpFoundation\Request $request
Chris@0:    *   (optional) The request.
Chris@0:    *
Chris@0:    * @return string
Chris@0:    *   Returns the path, without leading slashes.
Chris@0:    */
Chris@0:   public function getPath(Request $request = NULL) {
Chris@0:     if (!isset($request)) {
Chris@0:       $request = $this->requestStack->getCurrentRequest();
Chris@0:     }
Chris@0:     if (!isset($this->paths[$request])) {
Chris@0:       $this->paths[$request] = $request->getPathInfo();
Chris@0:     }
Chris@0: 
Chris@0:     return $this->paths[$request];
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Sets the current path.
Chris@0:    *
Chris@0:    * @param string $path
Chris@0:    *   The path.
Chris@0:    * @param \Symfony\Component\HttpFoundation\Request $request
Chris@0:    *   (optional) The request.
Chris@0:    *
Chris@0:    * @return $this
Chris@0:    */
Chris@0:   public function setPath($path, Request $request = NULL) {
Chris@0:     if (!isset($request)) {
Chris@0:       $request = $this->requestStack->getCurrentRequest();
Chris@0:     }
Chris@0:     $this->paths[$request] = $path;
Chris@0: 
Chris@0:     return $this;
Chris@0:   }
Chris@0: 
Chris@0: }