initial commit

app/library/ViewHelper/Service.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace ViewHelper;
+
+use Phalcon\DiInterface;
+use Phalcon\Di\InjectionAwareInterface;
+
+class Service implements InjectionAwareInterface
+{
+    protected $_helpers = array();
+
+    protected $_di;
+
+    /**
+     * Sets the dependency injector
+     *
+     * @param mixed $dependencyInjector
+     */
+    public function setDI(DiInterface $dependencyInjector)
+    {
+        $this->_di = $dependencyInjector;
+    }
+
+    /**
+     * Returns the internal dependency injector
+     *
+     * @return \Phalcon\DiInterface
+     */
+    public function getDI()
+    {
+        return $this->_di;
+    }
+
+    public function set($name, AbstractHelper $helper)
+    {
+        $helper->setDI($this->getDI());
+
+        $this->_helpers[$name] = $helper;
+    }
+
+    public function has($name)
+    {
+        return $this->_locateHelper($name) !== false;
+    }
+
+    public function get($name)
+    {
+        if ($this->has($name)) {
+            return $this->_helpers[$name];
+        }
+        return false;
+    }
+
+    public function __call($name, $args)
+    {
+        $helper = $this->get($name);
+        if ($helper) {
+            return call_user_func_array(array($helper, $name), $args);
+        }
+        return false;
+    }
+
+    protected function _locateHelper($name)
+    {
+        if (array_key_exists($name, $this->_helpers)) {
+            return $this->_helpers[$name];
+        }
+
+        $class = '\ViewHelper\\' . ucfirst($name);
+        if (class_exists($class)) {
+            $helper = new $class();
+            $this->set($name, $helper);
+            return $helper;
+        }
+        return false;
+    }
+}