Company list is now refreshable

lib/widget/category_display.dart

@@ -30,7 +30,7 @@ class CategoryDisplayWidget extends StatefulWidget {
 class _CategoryDisplayState extends RefreshableState<CategoryDisplayWidget> {
 
   @override
-  String app_bar_title = "Part Category";
+  String getAppBarTitle(BuildContext context) { return "Part Category"; }
 
   _CategoryDisplayState(this.category) {}
 

lib/widget/company_list.dart

@@ -6,6 +6,7 @@ import 'package:flutter/material.dart';
 import 'package:InvenTree/api.dart';
 import 'package:InvenTree/inventree/company.dart';
 import 'package:InvenTree/widget/drawer.dart';
+import 'package:InvenTree/widget/refreshable_state.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 
 abstract class CompanyListWidget extends StatefulWidget {
@@ -30,21 +31,23 @@ class CustomerListWidget extends CompanyListWidget {
 }
 
 
-class _CompanyListState extends State<CompanyListWidget> {
+class _CompanyListState extends RefreshableState<CompanyListWidget> {
 
   var _companies = new List<InvenTreeCompany>();
 
   var _filteredCompanies = new List<InvenTreeCompany>();
 
-  var _title = "Companies";
+  String _title = "Companies";
+
+  @override
+  String getAppBarTitle(BuildContext context) { return _title; }
 
   Map<String, String> _filters = Map<String, String>();
 
-  _CompanyListState(this._title, this._filters) {
-    _requestData();
-  }
+  _CompanyListState(this._title, this._filters) {}
 
-  void _requestData() {
+  @override
+  Future<void> request(BuildContext context) async {
 
     InvenTreeCompany().list(context, filters: _filters).then((var companies) {
 
@@ -94,20 +97,8 @@ class _CompanyListState extends State<CompanyListWidget> {
   }
 
   @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-        appBar: AppBar(
-          title: Text("$_title"),
-          actions: <Widget>[
-            IconButton(
-              icon: FaIcon(FontAwesomeIcons.plus),
-              tooltip: 'New',
-              onPressed: null,
-            )
-          ],
-        ),
-        drawer: new InvenTreeDrawer(context),
-        body: ListView(
+  Widget getBody(BuildContext context) {
+    return ListView(
       children: <Widget>[
         TextField(
           decoration: InputDecoration(
@@ -124,8 +115,6 @@ class _CompanyListState extends State<CompanyListWidget> {
             physics: ClampingScrollPhysics(),
             itemBuilder: _showCompany, itemCount: _filteredCompanies.length)
       ],
-        )
     );
   }
-
 }

lib/widget/location_display.dart

@@ -27,7 +27,7 @@ class _LocationDisplayState extends RefreshableState<LocationDisplayWidget> {
   final InvenTreeStockLocation location;
 
   @override
-  String app_bar_title = "Stock Location";
+  String getAppBarTitle(BuildContext context) { return "Stock Location"; }
 
   _LocationDisplayState(this.location) {}
 

lib/widget/part_detail.dart

@@ -25,7 +25,7 @@ class PartDetailWidget extends StatefulWidget {
 class _PartDisplayState extends RefreshableState<PartDetailWidget> {
 
   @override
-  String app_bar_title = "Part";
+  String getAppBarTitle(BuildContext context) { return "Part"; }
 
   _PartDisplayState(this.part) {
     // TODO

lib/widget/refreshable_state.dart

@@ -11,7 +11,7 @@ abstract class RefreshableState<T extends StatefulWidget> extends State<T> {
   // Storage for context once "Build" is called
   BuildContext context;
 
-  String app_bar_title = "App Bar Title";
+  String getAppBarTitle(BuildContext context) { return "App Bar Title"; }
 
   void initState() {
     super.initState();
@@ -31,7 +31,7 @@ abstract class RefreshableState<T extends StatefulWidget> extends State<T> {
   // Function to construct an appbar (override if needed)
   AppBar getAppBar(BuildContext context) {
     return AppBar(
-      title: Text(app_bar_title)
+      title: Text(getAppBarTitle(context))
     );
   }
 

lib/widget/stock_detail.dart

@@ -31,7 +31,7 @@ class StockDetailWidget extends StatefulWidget {
 class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
 
   @override
-  String app_bar_title = "Stock Item";
+  String getAppBarTitle(BuildContext context) { return "Stock Item"; }
 
   final TextEditingController _quantityController = TextEditingController();
   final TextEditingController _notesController = TextEditingController();