UIRuntime: created variable $template for back compatibility

Author: dg

src/Bridges/ApplicationLatte/UIRuntime.php

@@ -26,6 +26,9 @@ class UIRuntime
 	 */
 	public static function initialize(Latte\Template $template, $blockQueue)
 	{
+		// back compatibility
+		new VariableTemplate($template);
+
 		// snippet support
 		$params = $template->getParameters();
 		if (!$template->getParentName() && !empty($params['_control']->snippetMode)) {

src/Bridges/ApplicationLatte/VariableTemplate.php

@@ -0,0 +1,81 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+namespace Nette\Bridges\ApplicationLatte;
+
+use Latte;
+
+
+/**
+ * Variable $template for back compatibility.
+ * @internal
+ */
+class VariableTemplate extends Latte\Template
+{
+	/** @var Latte\Template */
+	private $template;
+
+
+	public function __construct(Latte\Template $template)
+	{
+		$this->template = $template;
+		$template->params['template'] = $this;
+	}
+
+	/**
+	 * Call a template run-time filter.
+	 */
+	public function __call($name, $args)
+	{
+		return call_user_func_array($this->template->filters->$name, $args);
+	}
+
+
+	/**
+	 * Sets a template parameter.
+	 * @return void
+	 */
+	public function __set($name, $value)
+	{
+		$this->template->params[$name] = $value;
+	}
+
+
+	/**
+	 * Returns a template parameter.
+	 * @return mixed  value
+	 */
+	public function &__get($name)
+	{
+		if (!array_key_exists($name, $this->template->params)) {
+			trigger_error("The variable '$name' does not exist in template.");
+		}
+		return $this->template->params[$name];
+	}
+
+
+	/**
+	 * Determines whether parameter is defined.
+	 * @return bool
+	 */
+	public function __isset($name)
+	{
+		return isset($this->template->params[$name]);
+	}
+
+
+	/**
+	 * Removes a template parameter.
+	 * @param  string    name
+	 * @return void
+	 */
+	public function __unset($name)
+	{
+		unset($this->template->params[$name]);
+	}
+
+}