add carton from mix_box & from cargos

lib/pages/carton_search/carton_search.dart

@@ -1,8 +1,11 @@
 import 'package:fcs/domain/entities/carton.dart';
 import 'package:fcs/helpers/theme.dart';
 import 'package:fcs/pages/carton/model/carton_model.dart';
+import 'package:fcs/pages/main/util.dart';
+import 'package:fcs/pages/widgets/barcode_scanner.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_icons/flutter_icons.dart';
+import 'package:permission_handler/permission_handler.dart';
 import 'package:provider/provider.dart';
 
 import 'carton_list_row.dart';
@@ -21,7 +24,7 @@ class PartSearchDelegate extends SearchDelegate<Carton> {
   PartSearchDelegate({this.callbackCartonSelect});
 
   @override
-  String get searchFieldLabel => 'Search by Carton Number/Customer Name';
+  String get searchFieldLabel => 'Search by Carton Number';
 
   @override
   ThemeData appBarTheme(BuildContext context) {
@@ -40,6 +43,11 @@ class PartSearchDelegate extends SearchDelegate<Carton> {
   @override
   List<Widget> buildActions(BuildContext context) {
     return [
+      IconButton(
+        icon: Icon(MaterialCommunityIcons.barcode_scan,
+            size: 30, color: Colors.white),
+        onPressed: () => _scan(context),
+      ),
       IconButton(
         icon: Icon(Icons.clear),
         onPressed: () => query = '',
@@ -106,17 +114,41 @@ class PartSearchDelegate extends SearchDelegate<Carton> {
 
   @override
   Widget buildSuggestions(BuildContext context) {
+    final cartonModel = Provider.of<CartonModel>(context);
     return Container(
-      child: Center(
-        child: Opacity(
-          opacity: 0.2,
-          child: Icon(
-            MaterialCommunityIcons.package,
-            color: primaryColor,
-            size: 200,
-          ),
-        ),
+      padding: EdgeInsets.only(top: 5),
+      child: ListView(
+        children: cartonModel.cartons
+            .map((u) => CartonListRow(
+                  carton: u,
+                  callbackCartonSelect: callbackCartonSelect,
+                ))
+            .toList(),
       ),
     );
   }
+
+  _scan(BuildContext context) async {
+    PermissionStatus permission =
+        await PermissionHandler().checkPermissionStatus(PermissionGroup.camera);
+    if (permission != PermissionStatus.granted) {
+      Map<PermissionGroup, PermissionStatus> permissions =
+          await PermissionHandler()
+              .requestPermissions([PermissionGroup.camera]);
+      if (permissions[PermissionGroup.camera] != PermissionStatus.granted) {
+        showMsgDialog(context, "Error", "Camera permission is not granted");
+        return null;
+      }
+    }
+
+    try {
+      String barcode = await scanBarcode();
+      if (barcode != null) {
+        query = barcode;
+        showResults(context);
+      }
+    } catch (e) {
+      print('error: $e');
+    }
+  }
 }