Add current_route to view

Added method Controller::localReferrer()

3 files changed, 47 insertions, 12 deletions

diff --git a/src/Jasny/Controller.php b/src/Jasny/Controller.php
index f9dd0eb..809b989 100644
--- a/src/Jasny/Controller.php
+++ b/src/Jasny/Controller.php
@@ -22,15 +22,36 @@ abstract class Controller
         $this->router = $router;
     }
     
+
+    /**
+     * Returns the HTTP referer if it is on the current host.
+     * 
+     * <code>
+     *   $this->redirect($this->localReferer() ?: '/'); // Back to previous page on our website
+     * </code>
+     * 
+     * @return string
+     */
+    protected function localReferer()
+    {
+        return !empty($_SERVER['HTTP_REFERER']) && parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST) == $_SERVER['HTTP_HOST'] ?
+            $_SERVER['HTTP_REFERER'] : null;
+    }
+    
+    
     /**
      * Show a view.
      * 
      * @param string $name     Filename of Twig template
      * @param array  $context  Data
      */
-    protected function view($name, $context = array())
+    protected function view($name=null, $context=[])
     {
-        header('Content-type: text/html; charset=utf-8');
+        if (isset($this->router)) {
+            if (!isset($name)) $name = $this->router()->get('controller') . '/' . $this->router()->get('action');
+            View::addGlobal('current_route', $this->router->getRoute());
+        }
+        
         View::load($name)->display($context);
     }
     
diff --git a/src/Jasny/View.php b/src/Jasny/View.php
index e3e204f..5a1967e 100644
--- a/src/Jasny/View.php
+++ b/src/Jasny/View.php
@@ -99,7 +99,7 @@ abstract class View
      * 
      * @return array
      */
-    public static function getFlash()
+    public static function useFlash()
     {
         if (isset($_SESSION['flash'])) {
             self::$flash = $_SESSION['flash'];
@@ -108,4 +108,12 @@ abstract class View
         
         return self::$flash;
     }
+    
+    /**
+     * Add a global variable to the view.
+     * 
+     * @param string $name   Variable name
+     * @param mixed  $value
+     */
+    abstract public static function addGlobal($name, $value);
 }
diff --git a/src/Jasny/View/Twig.php b/src/Jasny/View/Twig.php
index faf2458..1b750e0 100644
--- a/src/Jasny/View/Twig.php
+++ b/src/Jasny/View/Twig.php
@@ -2,8 +2,6 @@
 
 namespace Jasny\View;
 
-use \Jasny\Router;
-
 /**
  * View using Twig
  */
@@ -13,12 +11,6 @@ class Twig extends \Jasny\View
     protected $template;
     
     
-    /**
-     * Cached flash message
-     * @var array
-     */
-    protected static $flash;
-    
     /** @var \Twig_Environment */
     protected static $environment;
     
@@ -53,6 +45,7 @@ class Twig extends \Jasny\View
      */
     public function display($context)
     {
+        header('Content-type: text/html; charset=utf-8');
         $this->template->display($context);
     }
     
@@ -75,7 +68,7 @@ class Twig extends \Jasny\View
         $twig->setCache($cache);
         
         // Add filters and extensions http://twig.sensiolabs.org/doc/api.html#using-extensions
-        $twig->addFunction(new \Twig_SimpleFunction('flash', [__CLASS__, 'getFlash']));
+        $twig->addFunction(new \Twig_SimpleFunction('useFlash', [__CLASS__, 'useFlash']));
         
         if (class_exists('Jasny\Twig\DateExtension')) $twig->addExtension(new \Jasny\Twig\DateExtension());
         if (class_exists('Jasny\Twig\PcreExtension')) $twig->addExtension(new \Jasny\Twig\PcreExtension());
@@ -91,10 +84,23 @@ class Twig extends \Jasny\View
 
     /**
      * Get Twig environment
+     * 
+     * @return \Twig_Environment
      */
     public static function getEnvironment()
     {
         if (!isset(static::$environment)) static::init();
         return static::$environment;
     }
+    
+    /**
+     * Add a global variable to the view.
+     * 
+     * @param string $name   Variable name
+     * @param mixed  $value
+     */
+    public static function addGlobal($name, $value)
+    {
+        static::getEnvironment()->addGlobal($name, $value);
+    }
 }