TemplateTreeRenderer: introduce a new tree

library/Director/Web/Tree/TemplateTreeRenderer.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace Icinga\Module\Director\Web\Tree;
+
+use Icinga\Module\Director\Db;
+use Icinga\Module\Director\Resolver\TemplateTree;
+use ipl\Html\BaseElement;
+use ipl\Html\Html;
+use ipl\Html\Link;
+use ipl\Web\Component\ControlsAndContent;
+
+class TemplateTreeRenderer extends BaseElement
+{
+    protected $tag = 'ul';
+
+    protected $defaultAttributes = [
+        'class'            => 'tree',
+        'data-base-target' => '_next',
+    ];
+
+    protected $tree;
+
+    public function __construct(TemplateTree $tree)
+    {
+        $this->tree = $tree;
+    }
+
+    public static function showType($type, ControlsAndContent $controller, Db $db)
+    {
+        $controller->content()->add(
+            new static(new TemplateTree($type, $db))
+        );
+    }
+
+    public function renderContent()
+    {
+        $this->add(
+            $this->dumpTree(
+                array(
+                    'name' => 'Templates',
+                    'children' => $this->tree->getTree()
+                )
+            )
+        );
+
+        return parent::renderContent();
+    }
+
+    protected function dumpTree($tree, $level = 0)
+    {
+        $hasChildren = ! empty($tree['children']);
+        $type = $this->tree->getType();
+
+        $li = Html::tag('li');
+        if (! $hasChildren) {
+            $li->attributes()->add('class', 'collapsed');
+        }
+
+        if ($hasChildren) {
+            $li->add(Html::tag('span', ['class' => 'handle']));
+        }
+
+        if ($level === 0) {
+            $li->add( Html::tag('a', [
+                'name'  => 'Templates',
+                'class' => 'icon-globe'
+            ], $tree['name']));
+        } else {
+            $li->add(Link::create(
+                $tree['name'],
+                "director/${type}template/usage",
+                array('name' => $tree['name']),
+                array('class' => 'icon-' .$type)
+            ));
+        }
+
+        if ($hasChildren) {
+            $li->add(
+                $ul = Html::tag('ul')
+            );
+            foreach ($tree['children'] as $child) {
+                $ul->add($this->dumpTree($child, $level + 1));
+            }
+        }
+
+        return $li;
+    }
+}