oc-search porting to flutter (missing compose + workflow editor)

lib/pages/catalog_item.dart

@@ -0,0 +1,39 @@
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:oc_front/core/models/cart.dart';
+import 'package:oc_front/models/search.dart';
+import 'package:oc_front/pages/abstract_page.dart';
+import 'package:oc_front/pages/catalog.dart';
+import 'package:oc_front/widgets/items/item.dart';
+import 'package:oc_front/widgets/items/item_row.dart';
+
+class CatalogItemFactory implements AbstractFactory {
+  static GlobalKey<CatalogItemPageWidgetState> key = GlobalKey<CatalogItemPageWidgetState>();
+  @override bool searchFill() { return false; }
+  @override Widget factory(GoRouterState state, List<String> args) { 
+    var id = state.pathParameters[args.first];
+    try {
+      var item = CatalogFactory.items.firstWhere( (element) => element.id == id );
+      return CatalogItemPageWidget(item : item); 
+    } catch (e) { 
+      var item =  WorkspaceLocal.getItem(id ?? "");
+      if (item != null) { return CatalogItemPageWidget(item : item); }
+      return Container(); 
+    }
+  }
+  @override void search(BuildContext context) { }
+}
+
+class CatalogItemPageWidget extends StatefulWidget {
+  AbstractItem item;
+  CatalogItemPageWidget ({ required this.item }) : super(key: CatalogItemFactory.key);
+  @override CatalogItemPageWidgetState createState() => CatalogItemPageWidgetState();
+}
+class CatalogItemPageWidgetState extends State<CatalogItemPageWidget> {
+  @override Widget build(BuildContext context) {
+    return Column( children: [
+      ItemRowWidget(contextWidth: MediaQuery.of(context).size.width, item: widget.item, readOnly: true,),
+      ItemWidget(item: widget.item,),
+    ]);
+  }
+}