[feature/twig] Event template tag

PHPBB3-11598

phpBB/includes/template/twig/environment.php

@@ -17,6 +17,35 @@ if (!defined('IN_PHPBB'))
 
 class phpbb_template_twig_environment extends Twig_Environment
 {
+	/** @var array */
+	protected $phpbbExtensions;
+
+    /**
+     * Gets the cache filename for a given template.
+     *
+     * @param string $name The template name
+     *
+     * @return string The cache file name
+     */
+    public function getCacheFilename($name)
+    {
+        if (false === $this->cache) {
+            return false;
+        }
+
+    	return $this->getCache() . '/' . preg_replace('#[^a-zA-Z0-9_/]#', '_', $name) . '.php';
+    }
+
+    public function set_phpbb_extensions($extensions)
+    {
+    	$this->phpbbExtensions = $extensions;
+	}
+
+	public function get_phpbb_extensions()
+	{
+		return $this->phpbbExtensions;
+	}
+
 	/**
 	* recursive helper to set variables into $context so that Twig can properly fetch them for display
 	*

phpBB/includes/template/twig/node/event.php

@@ -0,0 +1,44 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+class phpbb_template_twig_node_event extends Twig_Node
+{
+	protected $environment;
+
+    public function __construct(Twig_Node_Expression $expr, phpbb_template_twig_environment $environment, $lineno, $tag = null)
+    {
+    	$this->environment = $environment;
+
+        parent::__construct(array('expr' => $expr), array(), $lineno, $tag);
+    }
+
+    /**
+     * Compiles the node to PHP.
+     *
+     * @param Twig_Compiler A Twig_Compiler instance
+     */
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->addDebugInfo($this);
+
+        $compiler->indent();
+
+    	$location = $this->getNode('expr')->getAttribute('name');
+
+    	foreach ($this->environment->get_phpbb_extensions() as $ext_namespace => $ext_path)
+    	{
+    		$ext_namespace = str_replace('/', '_', $ext_namespace);
+
+    		if ($this->environment->getLoader()->exists('@' . $ext_namespace . '/' . $location . '.html'))
+    		{
+    			$compiler->write("\$this->env->loadTemplate('@" . $ext_namespace . "/" . $location . ".html')->display(\$context);\n");
+			}
+		}
+    }
+}

phpBB/includes/template/twig/tokenparser/event.php

@@ -1,49 +1,29 @@
 <?php
-
-/*
- * This file is part of Twig.
- *
- * (c) 2009 Fabien Potencier
- * (c) 2009 Armin Ronacher
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
 /**
- * Includes a template.
- *
- * <pre>
- *   {% include 'header.html' %}
- *     Body
- *   {% include 'footer.html' %}
- * </pre>
- */
-class phpbb_template_twig_tokenparser_event extends Twig_TokenParser_Include
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+class phpbb_template_twig_tokenparser_event extends Twig_TokenParser
 {
-    protected function parseArguments()
+    /**
+     * Parses a token and returns a node.
+     *
+     * @param Twig_Token $token A Twig_Token instance
+     *
+     * @return Twig_NodeInterface A Twig_NodeInterface instance
+     */
+    public function parse(Twig_Token $token)
     {
+        $expr = $this->parser->getExpressionParser()->parseExpression();
+
         $stream = $this->parser->getStream();
-
-        $ignoreMissing = true;
-
-        $variables = null;
-        if ($stream->test(Twig_Token::NAME_TYPE, 'with')) {
-            $stream->next();
-
-            $variables = $this->parser->getExpressionParser()->parseExpression();
-        }
-
-        $only = false;
-        if ($stream->test(Twig_Token::NAME_TYPE, 'only')) {
-            $stream->next();
-
-            $only = true;
-        }
-
         $stream->expect(Twig_Token::BLOCK_END_TYPE);
 
-        return array($variables, $only, $ignoreMissing);
+        return new phpbb_template_twig_node_event($expr, $this->parser->getEnvironment(), $token->getLine(), $this->getTag());
     }
 
     /**

phpBB/includes/template/twig/twig.php

@@ -125,6 +125,9 @@ class phpbb_template_twig implements phpbb_template
     		'autoescape'	=> false,
 		));
 
+		// Set enabled phpbb extensions
+		$this->twig->set_phpbb_extensions($this->extension_manager->all_enabled());
+
 		// Clear previous cache files (while WIP)
 		// @todo remove
 		if (is_dir($this->cachepath))
@@ -182,7 +185,8 @@ class phpbb_template_twig implements phpbb_template
 					{
 						if (is_dir($ext_path . 'styles/' . $style_name))
 						{
-							$this->twig->getLoader()->addPath($ext_path . 'styles/' . $style_name, $ext_namespace);
+							// namespaces cannot contain /
+							$this->twig->getLoader()->addPath($ext_path . 'styles/' . $style_name . '/template', str_replace('/', '_', $ext_namespace));
 						}
 					}
 				}