initial commit

app/library/Menu.php

@@ -0,0 +1,140 @@
+<?php
+
+use Phalcon\Tag;
+use Navigation\Node;
+use Navigation\Navigation;
+
+class Menu extends Tag
+{
+    /**
+     * ACL Role
+     *
+     * @var string
+     */
+    protected $_role = null;
+
+    /**
+     * @var Navigation
+     */
+    protected $_navigation;
+
+    /**
+     * css class to use for the whole menu.
+     *
+     * @var string
+     */
+    protected $_menuClass = 'menu';
+
+    /**
+     * Class to use for active nodes.
+     *
+     * @var string
+     */
+    protected $_activeClass = 'active';
+
+    /**
+     * @param Navigation $navigation
+     */
+    public function __construct(Navigation $navigation)
+    {
+        $this->_navigation = $navigation;
+    }
+
+    /**
+     * @return Navigation
+     */
+    public function getNavigation()
+    {
+        return $this->_navigation;
+    }
+
+    /**
+     * @param Navigation $navigation
+     * @return Menu
+     */
+    public function setNavigation(Navigation $navigation)
+    {
+        $this->_navigation = $navigation;
+        return $this;
+    }
+
+    public function setMenuClass($class)
+    {
+        $this->_menuClass = (string) $class;
+        return $this;
+    }
+
+    /**
+     * @param $role
+     */
+    public function setAclRole($role)
+    {
+        $this->_role = $role;
+    }
+
+    /**
+     * Render the menu.
+     *
+     * @return string
+     */
+    public function render($max_depth = null)
+    {
+        return $this->_renderMenu($this->_navigation->getChildren(), 0, $max_depth);
+    }
+
+    protected function _renderMenu($nodes, $depth, $max_depth = null)
+    {
+        $xhtml = '';
+
+        foreach($nodes as $node) {
+            $xhtml .= $this->_renderNode($node, $depth, $max_depth);
+        }
+
+        if (strlen($xhtml) > 0) {
+
+            $attribs = array();
+            if (strlen($this->_menuClass) > 0) {
+                $attribs['class'] = $this->_menuClass;
+            }
+
+            return self::tagHtml('ul', $attribs, false, false, true)
+                . $xhtml
+                . self::tagHtmlClose('ul', true);
+        }
+        return $xhtml;
+    }
+
+    protected function _renderNode(Node $node, $depth, $max_depth = null)
+    {
+        $xhtml = '';
+
+        // ACL.
+        $resource = $node->getResource();
+        if (strlen($this->_role) > 0 && strlen($resource) > 0 && $this->getDI()->has('acl')) {
+            $acl = $this->getDI()->get('acl');
+            if (!$acl->isAllowed($this->_role, $resource, 'Read')) {
+                return $xhtml;
+            }
+        }
+
+        // Only render this node if it is visible and has a caption.
+        if (!$node->isVisible() || strlen($node->getCaption()) < 1) {
+            return $xhtml;
+        }
+
+        $xhtml = self::tagHtml('li', $node->isActive()
+                ? array('class' => $this->_activeClass) : null,
+                false, false, true);
+
+        // Generate the link.
+        $xhtml .= self::linkTo($node->getHref(), $node->getCaption());
+
+        if ($node->isActive() && $node->hasChildren()
+            && ($max_depth === null || $depth < $max_depth)) {
+
+            $xhtml .= $this->_renderMenu($node->getChildren(), $depth + 1, $max_depth);
+        }
+
+        return $xhtml . self::tagHtmlClose('li', true);
+    }
+}