1 files changed, 82 insertions, 0 deletions
diff --git a/phpBB/phpbb/template/twig/node/event.php b/phpBB/phpbb/template/twig/node/event.php
new file mode 100644
index 0000000000..b765bde98d
--- /dev/null
+++ b/phpBB/phpbb/template/twig/node/event.php
@@ -0,0 +1,82 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\template\twig\node;
+
+class event extends \Twig_Node
+{
+	/**
+	* The subdirectory in which all template listener files must be placed
+	* @var string
+	*/
+	protected $listener_directory = 'event/';
+
+	/** @var \Twig_Environment */
+	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);
+
+		$location = $this->listener_directory . $this->getNode('expr')->getAttribute('name');
+
+		foreach ($this->environment->get_phpbb_extensions() as $ext_namespace => $ext_path)
+		{
+			$ext_namespace = str_replace('/', '_', $ext_namespace);
+
+			if (defined('DEBUG'))
+			{
+				// If debug mode is enabled, lets check for new/removed EVENT
+				//  templates on page load rather than at compile. This is
+				//  slower, but makes developing extensions easier (no need to
+				//  purge the cache when a new event template file is added)
+				$compiler
+					->write("if (\$this->env->getLoader()->exists('@{$ext_namespace}/{$location}.html')) {\n")
+					->indent()
+				;
+			}
+
+			if (defined('DEBUG') || $this->environment->getLoader()->exists('@' . $ext_namespace . '/' . $location . '.html'))
+			{
+				$compiler
+					->write("\$previous_look_up_order = \$this->env->getNamespaceLookUpOrder();\n")
+
+					// We set the namespace lookup order to be this extension first, then the main path
+					->write("\$this->env->setNamespaceLookUpOrder(array('{$ext_namespace}', '__main__'));\n")
+					->write("\$this->env->loadTemplate('@{$ext_namespace}/{$location}.html')->display(\$context);\n")
+					->write("\$this->env->setNamespaceLookUpOrder(\$previous_look_up_order);\n")
+				;
+			}
+
+			if (defined('DEBUG'))
+			{
+				$compiler
+					->outdent()
+					->write("}\n\n")
+				;
+			}
+		}
+	}
+}