PoC for predefined filters in the tools sidebar menu

Custom filters would need some extra work if they are to be implemented. Fixes #938.

src/Controller/PartListsController.php

@@ -341,4 +341,35 @@ class PartListsController extends AbstractController
     {
         return $this->showListWithFilter($request,'parts/lists/all_list.html.twig');
     }
+
+    #[Route(path: '/parts/filter/less_than_desired', name: 'parts_filter_less_than_desired')]
+    public function showLessThanDesiredFilter(Request $request): Response
+    {
+        return $this->showListWithFilter($request,
+            'parts/lists/all_list.html.twig',
+            function (PartFilter $filter) {
+                $filter->lessThanDesired->setValue(true);
+            },
+	    function (FormInterface $filterForm) {
+                $this->disableFormFieldAfterCreation($filterForm->get('lessThanDesired')->get('value'));
+            }
+        );
+    }
+
+    #[Route(path: '/parts/filter/custom', name: 'parts_filter_custom')]
+    public function showCustomFilter(Request $request): Response
+    {
+	// TODO custom filters will need custom access permission checks!
+        return $this->showListWithFilter($request,
+            'parts/lists/all_list.html.twig',
+            function (PartFilter $filter) {
+                ;
+            },
+	    function (FormInterface $filterForm) {
+                ;
+            }
+        );
+    }
+
+
 }

src/Services/Trees/ToolsTreeBuilder.php

@@ -90,10 +90,38 @@ class ToolsTreeBuilder
         });
     }
 
+    protected function getFilterNode(): array
+    {
+        $nodes = [];
+
+        if ($this->security->isGranted('@parts.read')) {
+            $nodes[] = (new TreeViewNode(
+                $this->translator->trans('filter.less_than_desired'),
+                $this->urlGenerator->generate('parts_filter_less_than_desired')
+            ))->setIcon("fa-treeview fa-fw fa-solid fa-circle-exclamation");
+        }
+
+        if ($this->security->isGranted('@parts.read')) {
+            $nodes[] = (new TreeViewNode(
+                $this->translator->trans('filter.custom'),
+                $this->urlGenerator->generate('parts_filter_custom')
+            ))->setIcon("fa-treeview fa-fw fa-solid fa-code");
+        }
+        return $nodes;
+    }
+
     protected function getToolsNode(): array
     {
         $nodes = [];
 
+        if ($this->security->isGranted('@parts.read')) {
+            $nodes[] = (new TreeViewNode(
+                $this->translator->trans('filter.title'),
+                null,
+                $this->getFilterNode()
+            ))->setIcon("fa-fw fa-treeview fa-solid fa-filter");
+        }
+
         if ($this->security->isGranted('@labels.create_labels')) {
             $nodes[] = (new TreeViewNode(
                 $this->translator->trans('tree.tools.tools.label_dialog'),