Make search widget "refreshable"

- Return results for Part
- Return results for StockItem

lib/inventree/model.dart

@@ -182,7 +182,7 @@ class InvenTreeModel {
   }
 
   // Return list of objects from the database, with optional filters
-  Future<List<InvenTreeModel>> list(BuildContext context, {Map<String, String> filters}) async {
+  Future<List<InvenTreeModel>> list(BuildContext context, {Map<String, String> filters, bool dialog=true}) async {
 
     if (filters == null) {
       filters = {};
@@ -201,18 +201,25 @@ class InvenTreeModel {
     // TODO - Add "timeout"
     // TODO - Add error catching
 
-    showProgressDialog(context, "Requesting Data", "Requesting ${NAME} data from server");
+    if (dialog) {
+      showProgressDialog(context, "Requesting Data", "Requesting ${NAME} data from server");
+    }
 
     var response = await api.get(URL, params:params)
       .timeout(Duration(seconds: 10))
       .catchError((e) {
 
-        hideProgressDialog(context);
+        if (dialog) {
+          hideProgressDialog(context);
+        }
 
         if (e is TimeoutException) {
-          showErrorDialog(context, "Timeout", "No response from server");
+          if (dialog) {
+            showErrorDialog(context, "Timeout", "No response from server");
+          }
         } else {
-          showErrorDialog(context, "Error", e.toString());
+          // Re-throw the error
+          throw e;
         }
 
         return null;
@@ -222,7 +229,9 @@ class InvenTreeModel {
       return null;
     }
 
-    hideProgressDialog(context);
+    if (dialog) {
+      hideProgressDialog(context);
+    }
 
     // A list of "InvenTreeModel" items
     List<InvenTreeModel> results = new List<InvenTreeModel>();

lib/widget/location_display.dart

@@ -1,7 +1,6 @@
 import 'package:InvenTree/api.dart';
 import 'package:InvenTree/inventree/stock.dart';
 import 'package:InvenTree/preferences.dart';
-import 'package:InvenTree/widget/drawer.dart';
 import 'package:InvenTree/widget/stock_detail.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';

lib/widget/search.dart

@@ -1,7 +1,12 @@
 
-import 'package:InvenTree/widget/drawer.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
+import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+
+import 'package:InvenTree/widget/refreshable_state.dart';
+import 'package:InvenTree/inventree/part.dart';
+import 'package:InvenTree/inventree/stock.dart';
+
 
 class SearchWidget extends StatefulWidget {
 
@@ -10,24 +15,81 @@ class SearchWidget extends StatefulWidget {
 }
 
 
-class _SearchState extends State<SearchWidget> {
+class _SearchState extends RefreshableState<SearchWidget> {
+
+  String _searchText = "";
+
+  List<InvenTreePart> _parts = List<InvenTreePart>();
+  List<InvenTreeStockItem> _stockItems = List<InvenTreeStockItem>();
 
   @override
-  Widget build(BuildContext context) {
+  String getAppBarTitle(BuildContext context) {
+    return "Search";
+  }
 
-    return Scaffold(
+  Future<void> _search(BuildContext context) {
-      appBar: AppBar(
+    print("Search: $_searchText}");
-        title: Text("Search"),
-      ),
-      drawer: new InvenTreeDrawer(context),
-      body: Center(
-        child: ListView(
-          children: <Widget>[
 
-          ],
+    // Ignore if the search text is empty
-        )
+    if (_searchText.isNotEmpty) {
+
+      // Search for parts
+      InvenTreePart().list(context, filters: {"search": _searchText}).then((var parts) {
+        setState(() {
+          _parts.clear();
+          for (var part in parts) {
+            if (part is InvenTreePart) {
+              _parts.add(part);
+            }
+          }
+
+          print("Matched ${_parts.length} parts");
+        });
+      });
+
+      // Search for stock items
+      InvenTreeStockItem().list(context, filters: {"search": _searchText}).then((var items) {
+        setState(() {
+          _stockItems.clear();
+          for (var item in items) {
+            if (item is InvenTreeStockItem) {
+              _stockItems.add(item);
+            }
+          }
+
+          print("Matched ${_stockItems.length} stock items");
+        });
+      });
+    }
+  }
+
+  @override
+  Future<void> request(BuildContext context) async {
+    _search(context);
+  }
+
+  @override
+  Widget getBody(BuildContext context) {
+
+    return Center(
+      child: ListView(
+        children: <Widget>[
+          TextField(
+            decoration: InputDecoration(
+              hintText: "Search"
+            ),
+            onChanged: (String text) {
+              _searchText = text;
+            }
+          ),
+          RaisedButton(
+            child: Text("Search"),
+            onPressed: () {
+              _search(context);
+            },
+          ),
+        ]
       )
     );
-
   }
 }