Breadcrumb: cleanup and externalize

library/Businessprocess/Renderer/Breadcrumb.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Renderer;
+
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Html\BaseElement;
+use Icinga\Module\Businessprocess\Html\Element;
+use Icinga\Module\Businessprocess\Html\Link;
+use Icinga\Module\Businessprocess\Renderer\TileRenderer\NodeTile;
+
+class Breadcrumb extends BaseElement
+{
+    protected $tag = 'ul';
+
+    protected $defaultAttributes = array(
+        'class'            => 'breadcrumb',
+        'data-base-target' => '_main'
+    );
+
+    /**
+     * @param Renderer $renderer
+     * @return static
+     */
+    public static function create(Renderer $renderer)
+    {
+        $bp = $renderer->getBusinessProcess();
+        $breadcrumb = new static;
+        $breadcrumb->add(Element::create('li')->add(
+            Link::create($bp->getTitle(), $renderer->getBaseUrl())
+        ));
+        $path = $renderer->getCurrentPath();
+
+        $parts = array();
+        while ($node = array_pop($path)) {
+            array_unshift(
+                $parts,
+                static::renderNode($bp->getNode($node), $path, $renderer)
+            );
+        }
+        $breadcrumb->addContent($parts);
+
+        return $breadcrumb;
+    }
+
+    /**
+     * @param BpNode $parent
+     * @return NodeTile
+     */
+    protected static function renderNode(BpNode $node, $path, Renderer $renderer)
+    {
+        // TODO: something more generic than NodeTile?
+        $p = new NodeTile($renderer, (string) $node, $node, $path);
+        $p->attributes()->add('class', $renderer->getNodeClasses($node));
+        $p->setTag('li');
+        return $p;
+    }
+}

library/Businessprocess/Renderer/Renderer.php

@@ -157,7 +157,7 @@ abstract class Renderer extends Html
         return $this->path;
     }
 
-    public function getMyPath()
+    public function getCurrentPath()
     {
         $path = $this->getPath();
         if ($this->rendersSubNode()) {

library/Businessprocess/Renderer/TileRenderer.php

@@ -37,67 +37,18 @@ class TileRenderer extends Renderer
             $this->add(new AddNewTile($this));
         }
 
+        $path = $this->getCurrentPath();
         foreach ($nodes as $name => $node) {
-            $this->add(new NodeTile($this, $name, $node));
+            $this->add(new NodeTile($this, $name, $node, $path));
         }
 
         $nodesDiv->addContent($this->getContent());
-            $this->setContent($this->renderBreadCrumb())
+            $this->setContent(Breadcrumb::create($this))
                 ->addContent($nodesDiv);
 
         return parent::render();
     }
 
-    public function renderBreadCrumb()
-    {
-        $breadcrumb = Element::create('ul', array(
-            'class'            => 'breadcrumb',
-            'data-base-target' => '_main'
-        ));
-
-        $breadcrumb->add(Element::create('li')->add(
-            Link::create($this->bp->getTitle(), $this->getBaseUrl())
-        ));
-        $bp = $this->bp;
-        $path = $this->getMyPath();
-        $max = 20;
-        $chosen = array();
-        for ($i = 1; $i <= $max; $i++) {
-            if (! empty($path)) {
-                $chosen[] = array_pop($path);
-            }
-        }
-        $chosen = array_reverse($chosen);
-        $consumed = array();
-        while ($parent = array_shift($chosen)) {
-            $breadcrumb->add($this->renderParent($bp->getNode($parent), $consumed));
-            $consumed[] = $parent;
-        }
-
-        return $breadcrumb;
-    }
-
-    /**
-     * @param BpNode $parent
-     */
-    public function renderParent(BpNode $parent, $path)
-    {
-        $p = new NodeTile($this, (string) $parent, $parent, $path);
-        $p->attributes()->add('class', $this->getNodeClasses($parent));
-        $p->setTag('li');
-        return $p;
-    }
-
-    /**
-     * @return array
-     */
-    public function getDefaultAttributes()
-    {
-        return array(
-            'class' => 'tiles aaaa' . $this->howMany()
-        );
-    }
-
     /**
      * A CSS class giving a rough indication of how many nodes we have
      *