Added IRenderable interface

src/IRenderable.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: egorov
+ * Date: 12.12.2014
+ * Time: 9:50
+ */
+
+namespace samson\core;
+
+/**
+ * Generic view rendering interface defining
+ * all main view context operations.
+ * @package samson\core
+ */
+interface IViewable
+{
+    /**
+     * Set view variable
+     * @param string $key   Variable key\prefix for objects and arrays
+     * @param mixed $value Variable value
+     * @return IViewable Chaining
+     */
+    public function set($key, $value);
+
+    /**
+     * Set current view for rendering.
+     * Method searches for the shortest matching view path by $pathPattern,
+     * from loaded views.
+     *
+     * @param string $pathPattern  Path pattern for view searching
+     * @return IViewable Chaining
+     */
+    public function view($pathPattern);
+
+    /**
+     * Render current view.
+     * Method uses current view context and outputs rendering
+     * result.
+     *
+     * @return string Rendered view
+     */
+    public function output();
+}